RU2661732C2 - Staple cartridge tissue thickness analysis system - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically to surgical instruments. Staple cartridge for use in a surgical stapler comprises a staple body comprising a proximal end and a distal end, a tissue thickness sensing module coupled to said distal end of said staple body, wherein said tissue thickness sensing module comprises a controller, a sensor, wherein the controller is configured to detect a power key removably positioned relative to said tissue thickness sensing module. Controller is configured to maintain the tissue thickness sensing module in a low-power state while the power key is present, and wherein the controller is configured to transition the tissue thickness sensing module to an active state when the power key is removed. Method for controlling the power supply of the staple cartridge assembly having a tissue thickness sensing module is also provided.

EFFECT: use of a group of inventions ensures that the thickness of tissue clamped at the end clamp is matched to the optimum range for said staple cartridge.

18 cl, 15 dwg

Description

The present description relates generally to surgical instruments for endoscopic, laparoscopic or robotic surgery. In particular, the present description relates to surgical instruments comprising an end clamp for stapling tissue with brackets.

Surgical staplers are used to simultaneously perform a longitudinal incision of the tissue and establish rows of staples on both sides of the incision. Such instruments usually have an end grip consisting of two jointly operating jaws, which, if the instrument is intended for endoscopic or laparoscopic use, can be passed through the lumen of the cannula. In one embodiment, a cassette with brackets is installed in one of the jaws, containing at least two rows of brackets located on the sides — one on each side of the scalpel channel defined herein. The other handle may be a thrust plate having bracket-shaped recesses corresponding to the rows of cartridge brackets. The tool may also include a variety of cam or lifting surfaces, which, making distal movement, pass through the holes in the cassette with brackets and come into contact with the guides in which the brackets are located, so that the latter are pushed in the direction of the thrust plate. At the same time, the cutting tool (scalpel) moves along the jaw in the distal direction so that the fixed tissue is simultaneously dissected and fixed (for example, with brackets).

An example of a surgical stapler used in endoscopic surgery is described in US Pat. No. 7,000,818 entitled "Surgical Stapler with Separate Independent Closing and Stapling Systems", the description of which is incorporated herein by reference. During use, the doctor may press the jaw elements of the stapling instrument to the tissue to position the tissue before starting. If the doctor believes that the jaws hold the tissue properly, he can activate the surgical stapler, thereby dissecting and stitching the tissue. Simultaneous cutting and stitching of tissues eliminates the complications that may arise during the sequential execution of these actions by various surgical instruments, which respectively only dissect or only stitch the tissues.

Surgical stapling instruments are designed to be used in an optimal range of tissue thicknesses. Doctors should now use video broadcasting and intuition to determine if the thickness of the tissue fixed in the end clamp is in the optimal range. It may take years of practice to develop the appropriate skills to determine the required tissue thickness for a particular cartridge, and some doctors can never reach that level. For these purposes, a simple and reliable system is required to determine if the thickness of the fabric fixed in the end clamp matches the optimal range for this cartridge with brackets.

SUMMARY OF THE INVENTION

A device comprising a Hall sensor, a reed switch, a power source and a controller in communication with a power supply is described in various embodiments. The controller is configured to determine the state of the reed switch. The magnet is removably located next to the device. The magnet is configured to create a magnetic field sufficient to maintain the reed switch in a saturated state. The controller determines the state of saturation and keeps the device in a low-power state while the reed switch is in saturation. When the magnet is removed from the device, the reed switch switches to an unsaturated state. The controller determines the unsaturated state of the reed switch and transfers the device from a low power state to an active power state.

Surgical end clamp is described in various embodiments. Surgical end clamp contains a cartridge with brackets having a proximal end and a distal end; The cassette with brackets is made with the possibility of stitching fabric brackets in the optimal range of tissue thickness. The thrust plate is movably connected relative to the proximal end of the cartridge with brackets. The tissue thickness analysis module is located next to the distal end of the cartridge with brackets. The tissue thickness analysis module comprises a sensor and a controller. The sensor is configured to generate a signal determining the thickness of the fabric located between the thrust plate and the cassette with brackets. The controller is in communication with the sensor. The controller contains an identification device for determining the type of cartridge with brackets. The type of cartridge with brackets and the thickness of the fabric are used to determine if the thickness of the fabric, fixed between the thrust plate and the cassette with brackets, matches the optimal range for this cartridge.

A staple cartridge for use with a surgical stapler is described in various embodiments. The cassette with brackets has a casing with brackets containing a proximal end and a distal end. The tissue thickness analysis module is located next to the distal end of the body with brackets. The tissue thickness analysis module comprises a controller and a sensor. The power key is removably located next to the housing with brackets. The controller is configured to determine a power key and maintain a tissue thickness analysis module in a state of reduced power consumption while the power key is installed. When the power switch is turned off, the controller puts the tissue thickness analysis module into a state of active power.

BRIEF DESCRIPTION OF THE DRAWINGS

Features of various embodiments of the present invention are set forth in detail in the attached claims. However, various embodiments of the present invention relating to the device and methods of operation, as well as their advantages, will be best understood with reference to the following description given in accordance with the following accompanying drawings:

In FIG. 1 and 2 are views of a hinged surgical instrument.

In FIG. 3-6 shows views with a spatial separation of the components of the end clamp and the core of the surgical instrument shown in FIG. 1 and 2.

In FIG. 7 is a perspective view of an end clip containing a tissue thickness analysis module.

In FIG. 8 illustrates one embodiment of a tissue thickness analysis module.

In FIG. 9A and 9B are internal views of the tissue thickness analysis module shown in FIG. 8.

In FIG. 10 is a block diagram of one embodiment of a tissue thickness analysis module.

In FIG. 11 illustrates one embodiment of a tissue thickness analysis module configured to transmit a tissue thickness signal to a remote device.

In FIG. 12 illustrates one embodiment of a tissue thickness analysis module configured to install a power key containing a magnet.

In FIG. 13 shows one embodiment of a Hall sensor.

In FIG. 14 illustrates one embodiment of a tissue thickness analysis module configured to obtain a power key containing end clamps.

In FIG. 15 is a flowchart showing one embodiment of a method for maintaining a tissue thickness analysis module in a low power state.

DETAILED DESCRIPTION OF THE INVENTION

The author of this application also owns a US patent application entitled “Fabric Thickness Analysis System with Cassette with Brackets”, Patent Attorney File No. END7198USNP / 120306, filed on the same day and incorporated herein by reference in its entirety.

A detailed description of several embodiments of the invention will be provided herein, including embodiments showing examples of surgical instruments comprising a tissue thickness analysis module. If possible, the figures may use the same or similar identification numbers, which may indicate the same or similar functional elements. In the figures, for illustrative purposes only, examples of embodiments of the described surgical instruments and / or methods for their use are shown. Specialists in the relevant field will easily determine, based on the following description, that alternative examples of embodiments of the structures and methods shown in this document can be applied without departing from the principles described here.

It should be understood that the terms “proximal” and “distal” are used herein to refer to the surgeon holding the handle of the instrument. So, the end clamp is located distally with respect to the handle located proximally. It should also be understood that for convenience and clarity, spatial terms such as “vertical” and “horizontal” are used herein with respect to drawings. However, surgical instruments are used in a variety of orientations and positions, and these terms are not limiting and absolute.

In accordance with various embodiments, said surgical instrument may be electrically actuated, manually, or have robotic control. US Patent Application Ser. No. 13 / 782,295, entitled “Surgical instruments with articulation with conductive channels for signal transmission”; US Patent Application Ser. No. 13 / 782,323, entitled “Swivel joints with rotary drives for surgical instruments”; US Patent Application Ser. No. 13 / 782,338, entitled “Configurations of Disk Switches for Surgical Instruments”; US Patent Application Ser. No. 13 / 782,499, entitled “Electromechanical surgical instrument with alarm relay”; US Patent Application Ser. No. 13 / 782,460, entitled “Multiprocessor Electric Drive Control Unit for Modular Surgical Instruments”; US Patent Application Ser. No. 13 / 782,358, entitled “Configurations of joystick switches for surgical instruments”; US Patent Application Ser. No. 13 / 782,481, entitled “End clamp with sensor, rectified during extraction through the trocar”; US Patent Application Ser. No. 13 / 782,518, entitled “Methods of controlling surgical instruments using removable devices”; US Patent Application Ser. No. 13 / 782,375, entitled “Surgical instruments with rotary drive with several degrees of freedom”; and US Patent Application Ser. No. 13 / 782,536, entitled “Soft Stop for Surgical Instruments”, which were filed March 1, 2013 and are incorporated herein by reference.

In FIG. 1 and 2 are images of an electrically driven surgical cutting and stapling instrument 10 in accordance with various embodiments of the present invention. The embodiment depicted in the figures is a linear endoscopic instrument, and, as a rule, embodiments of the instrument 10 described herein are linear endoscopic cutting and stapling surgical instruments. It should be noted that the present invention is not limited to this, and that in accordance with other embodiments of the present invention, said tool may be another type of endoscopic instrument, such as a circular or curved cutting endoscopic apparatus. US patent application No. 2008/0169332, published July 17, 2008, entitled "Surgical stapling instrument with a curved cutting element", is fully incorporated herein by reference. In addition, the described instrument may be a non-endoscopic surgical cutting and stapling instrument, such as a laparoscopic or open surgery instrument or a robotic surgical instrument. In some embodiments, the surgical instrument 10 may have recording functions. U.S. Patent Ser. No. 7,845,537, issued December 7, 2010, entitled “Surgical Instrument with Recording Functions”, is incorporated herein by reference in its entirety.

Surgical Instrument 10 shown in FIG. 1 and 2, comprises a handle 6, a rod 8, and an end clip 12 connected to the rod 8. In various embodiments, the end clip 12 can be pivotally mounted on the pivot joint 14. The hinge control device 16 can be provided adjacent to the handle 6 for rotation the end clamp 12 on the articulation 14. In the illustrated embodiment, the end clamp 12 is configured to work as an endocater for clamping, dissecting and stitching tissue, although in other embodiments, implementation is possible with change other types of end clamps, such as end clamps for other types of surgical devices, such as clamps, dividers, stapling instruments, clip-on devices, access devices, drug / gene therapy devices, ultrasound, RF or laser devices, etc.

The handle 6 of the tool 10 may include a closing trigger 18 and a trigger 20 for activating the end clamp 12. It should be understood that instruments having end clamps related to various surgical procedures may have different numbers or types of triggers or other suitable control devices for operation of the end clamp 12. The figure shows that the end clamp 12 is separated from the handle 6 by an elongated shaft 8. In one embodiment, the surgeon or operator of the instrument 10 can change s position end clamp 12 relative to the shaft 8 via the control unit 16. U.S. Patent № 7,670,334, entitled "Surgical instrument with articulated end clamp", fully incorporated herein by reference.

The end clamp 12, among other things, has a channel for the brackets 22 and a rotatable clamping element, for example, a stop plate 24, between which a distance is maintained for efficient stitching and dissection of the tissues captured by the end clamp 12 when the stop 24 is in the clamped position. The handle 6 includes a downward-pointing pistol grip 26, to which the surgeon presses the closing trigger 18 to clamp or press the stop plate 24 against the gutter for staples 22 of the end clamp 12 to grip tissue placed between the stop plate 24 and the gutter 22. The trigger 20 is farther outside the closing trigger 18. When the closing trigger 18 is locked in the closed position, the trigger 20 can be rotated somewhat towards the pistol grip 26 so that the operator can pull it out one hand. The operator can then pivotally start the trigger hook 20 to the pistol grip 12 to cause stitching and dissection of the clamped tissue in the end clamp 12. In other embodiments, other types of clamping elements can be used besides the stop plate 24. The handle 6 may also include a top 28, located on top of the user's hand when the user grips the pistol grip 26 with his hand. The thrust plate 24 may have a magnet 78, which is located at the distal end of the thrust plate 24.

When using the tool, the closing trigger 18 can be pressed first. When the doctor is satisfied with the position of the end clamp 12, the doctor can move the closing trigger 18 to its fully closed, fixed position near the pistol grip 26. Pulling the hook of the closing trigger 18 rotates the thrust plate 24 down and clamping the fabric between the stop plate 24 and the cassette with brackets 34 located inside the channel 22. Then the trigger 20 can be pressed. Pressing the trigger 20 leads to the fact that the cutting tool in the end clamp 12 cuts through the fixed tissue, and the fasteners in the cassette with brackets 34 fasten the dissected tissue. When the surgeon releases the trigger 20, the hook returns to the open position (see FIGS. 1 and 2). In order to unlock the closing trigger 18, it is necessary to press the locking button 19 on the handle 6. The locking button 19 can be made in various forms, examples of which are described in US patent application No. 2007/0175955. US Patent Application No. 2007/0175955, entitled “Surgical Cutting and Stapling Tool with Locking Release Trigger Locking Mechanism”, is incorporated herein by reference in its entirety.

The end clamp 12 may include a cutting tool, such as a scalpel, for example, to dissect the tissue fixed in the end clamp 12 when the user presses the trigger 20. The end clamp 12 may also contain means for stitching the tissue dissected by the cutting tool, for example, staples, HF- electrodes, glue, etc. The tool 10 may also include a system for closing (clamping) the end clamp when closing (retracting) the closing trigger 18.

 A movable translational or rotational drive shaft located inside the shaft 8 of the tool 10 can drive the cutting tool and means of fastening the tissue of the end clamp 12. For direct or indirect (through the chain of gears) control of the drive shaft, an electric drive located in the pistol grip 26 can be used the handles 6 of the tool 10. In various embodiments, the motor may be a direct-current brush DC motor having a maximum rotation speed of n For example, about 25,000 rpm. In other embodiments, the drive may be a brushless motor, a wireless motor, a synchronous motor, a stepper motor, or any other suitable electric drive. US Patent Application No. 2010/0089970, published April 15, 2010, entitled "Electrically Operated Surgical Cutting and Stapling Machine, with Manual Retractable Extraction System" and US Patent No. 8,210,411, issued July 3, 2012, entitled "Surgical electric cutting tools "are fully incorporated herein by reference. In the pistol grip 26 of the grip 6, next to the drive, a battery (or a power source or power supply), for example, a lithium-ion battery, can be placed. The battery provides power to the drive through the drive control circuit. In accordance with various embodiments, several series-connected batteries may be used as an energy source for supplying energy to the drive. In addition, the energy source may be removable and / or rechargeable.

In FIG. 3 is a block diagram of an end clamp 12 in accordance with various embodiments of the present invention. As shown in the illustrated embodiment, the end clamp 12 may include, in addition to the previously indicated channel 22 and stop 24, a cutting tool 32, a slide 33, a cartridge 34 with brackets removably mounted in the channel 22, and a screw shaft 36. The cutting tool 32 may be, for example, a scalpel. The thrust plate 24 can pivotally open and close on the hinge pins 25 connected to the proximal end of the channel 22. The thrust plate 24 may also have a tongue 27 at the proximal end inserted into the part of the closing mechanism to open and close the thrust plate 24. When the closing trigger 18 is activated, that is, the user of the tool 10 presses on it, the thrust plate 24 can rotate around the axis of the hinge 25 in a fixed (or closed) position, thereby fixing the fabric between the groove 22 and thrust plate 24. If the fixation of the end clamp 12 is sufficient, the operator can actuate the trigger 20, while the scalpel 32 and the slide 33 move along the groove 22, dissecting the tissue fixed by the end clamp 12. As a result of the movement of the slide 33 along the channel 22 of the bracket (not shown) from the cartridge with brackets 34 stitch the dissected tissue, abutting against the pressed thrust plate 24, which bends them, fixing the dissected tissue. In various embodiments, the slide 33 can be an integral component of the cartridge 34. The slide 33 can be part of the cartridge 34, however, when the scalpel 32 is pulled back after dissection of the tissue, the slide 33 is not pulled with the scalpel 32 and remains with at least partially activated cassette with brackets 34.

In FIG. 4-5 are presented in a disassembled form, and in FIG. 6 is a side view of an end clip 12 and a shaft 8 in accordance with various non-limiting embodiments of the invention. As shown in the illustrated embodiment, the rod 8 may include a proximal closure tube 40 and a distal closure tube 42 connected by hinge links 44. The distal closure tube 42 includes an opening 45 into which a tongue 27 is inserted on the stop 24 to open and close the stop 24, as further described below. A proximal core tube 46 may be located inside the closure tubes 40, 42. A primary rotational (or proximal) drive shaft 48 may be located inside the proximal core tube 46, which is connected to the secondary (or distal) drive shaft 50 via a bevel gear assembly 52. The secondary drive shaft 50 is connected to the drive gear 54, which engages the proximal drive gear 56 of the screw shaft 36. The vertical bevel gear 52b can be located and pivoted in the hole 57 at the distal end of the proximal core tube 46. A secondary drive gear can be enclosed in the distal core tube 58 shaft 50 and drive gears 54, 56. Together, the main drive shaft 48, the auxiliary drive shaft 50, and the articulated block (for example, bevel gears 52a-c) are in oyaschem document, sometimes called a "block the main drive shaft."

The bearing 38 located at the distal end of the channel 22 for the brackets, takes the screw rod 36, which allows the screw rod 36 to rotate freely with respect to the channel 22. The screw rod 36 can be joined with a threaded hole (not shown) of the scalpel 32 so that when the rod is rotated 36, the scalpel 32 translationally moves distally or proximal (depending on the direction of rotation) in the channel 22 for brackets. Accordingly, when the main drive shaft 48 rotates when the trigger 20 is pressed, the set of bevel gears 52a-c causes the rotation of the auxiliary drive shaft 50, which in turn, due to the connection of the drive mechanisms 54 and 56, causes the rotation of the screw shaft 36, which forces the scalpel-promoting element 32 is moved along the channel 22 and dissect the tissue captured by the end clamp 12. The slide 33 can be made, for example, of plastic and can have an inclined distal surface. As the slide 33 moves along the groove 22, the inclined front surface can push or move the suture staples in the suture staple cassette 34 in the clamped fabrics opposite the stop plate 24. The stop plate 24 bends the staples, thereby securing the dissected tissue. When the scalpel 32 is pulled out, the scalpel 32 and the slide 33 can detach, while the slide 33 remains at the distal end of the channel 22.

In the illustrated embodiment, a rotary screw shaft 36 is used in the end clamp 12 to actuate the cutting tool 32. Such a rotary screw shaft 36 can be used in embodiments using a rotary drive element. In other embodiments, for driving a cutting tool, for example, a drive element that performs a longitudinal reciprocating motion can be used. When using a longitudinal reciprocating driving element, the end clamp 12 can be changed accordingly.

In accordance with various embodiments, the cassette with brackets 34 may include a tissue thickness analysis module 102 that determines the thickness of the tissue fixed in the end clamp 12 between the channel with brackets 22 (including the cartridge with brackets 34) and the thrust plate 24. In accordance with various non-limiting options for implementation, as shown in FIG. 7, the tissue thickness analysis module 102 may be positioned adjacent to the distal end 62 of the cartridge with brackets 34 so that it is distal, for example, with respect to the brackets of the cartridge with brackets 34 when brackets are applied. In FIG. 8-9B show one embodiment of a tissue thickness analysis module 102. As shown in FIG. 8, the tissue thickness analysis module 102 may include a housing 103 for protecting the elements of the module 102 during use. In FIG. 9A and 9B show one view of a tissue thickness analysis module 102 without a housing 103. As shown in FIGS. 9A and 9B, a tissue thickness analysis module 102 may include a tissue thickness sensor 104, a controller 106, a radio module 108, a power supply 110, and an antenna 112.

In some embodiments, the tissue thickness gauge 104 may be configured to generate a signal detecting the thickness of the tissue located between the abutment plate 24 and the channel for the staples 22. Any suitable gauge for detecting the thickness of the tissue clamped at the end may be used as the tissue thickness gauge 104 clamp 12. For example, as a thickness gauge for fabric 104, a magnetic sensor, a magnetic inductive sensor, a magnetoresistive sensor (AMR, GMR), an ultrasonic sensor, an RF sensor can be used and / or any other suitable sensor. In some embodiments, the tissue thickness sensor 104 may be configured to detect a magnetic field generated by a magnet 78 located at the distal end 80 of the abutment plate 24. When the surgeon closes the abutment plate 24 by pressing the closure trigger 18, the magnet 78 rotates down and approaches the tissue thickness sensor 104, changing the magnetic field determined by the tissue thickness sensor 104 when the thrust plate 24 is rotated to a closed (fixed) position. The magnetic field 78 of the magnet 78 determined by the tissue thickness sensor 104 characterizes the distance between the cassette with brackets 34 and the thrust plate 24, which in turn characterizes the thickness of the tissue fixed between the cassette with brackets 34 and the thrust plate 24 when the end clamp 12 is closed (fixed ) position. For example, a larger distance between the cassette with brackets 34 and the thrust plate 24, and accordingly a weaker magnetic field detected by the tissue thickness sensor 104, may indicate the presence of thick tissue between the cassette with brackets 34 and the thrust plate 24. And a smaller distance between the cassette with brackets 34 and a thrust plate 24 and a correspondingly stronger magnetic field detected by the tissue thickness sensor 104 may indicate the presence of thin tissue between the cassette with brackets 34 and the thrust plate 24. In some embodiments, • As a gauge for the thickness of fabric 104, a Hall gauge may be used.

The controller 106 may be configured to control one or more operations of the tissue thickness analysis module 102. The controller 106 may communicate with the tissue thickness sensor 104. The signals may be transmitted via wired and / or wireless communication. The controller 106 may be configured to control the operation of the tissue thickness sensor 104, the transmitter 108 and / or the power source 110. In some embodiments, the controller 106 may be configured to perform one or more processes providing control of the tissue thickness analysis module 102 and / or end clamp 12.

In some embodiments, the controller 106 may include a device for identifying the type of cartridge with brackets located in the channel for the brackets 22. The cartridge with brackets 34 may be configured to be used within the optimal range of tissue thickness, and the controller 106 may be configured to determine compliance / suitability of a particular cartridge with brackets in specific conditions. For example, in some embodiments, the cartridge 34 may comprise a plurality of long staples for stitching thick tissue. For example, in some embodiments, the cartridge 34 may comprise a plurality of short staples for stitching thin tissue. When the optimal tissue thickness range for the cartridge with brackets 34 requires the use of longer staples, when trying to use a cartridge designed for stitching thin tissue, the surgical instrument 2 warns the surgeon or, for example, is blocked in some cases. The identification device may be configured to determine the type of cartridge with brackets located in the channel for the brackets 22, providing the correct type of cartridge with brackets 34 corresponding to the thickness of the stitched fabric.

In some embodiments, the tissue thickness analysis module 102 may comprise a radio module 108. The radio module 108 may be a low-power radio module for two-way wireless communication using a wireless communication protocol with a remote device, such as a receiver, located in the handle 6 of tool 10. B According to various embodiments, the radio module 108 can exchange data with the remote device at a frequency at which rad signal through human tissue. For the exchange of data between the radio module 108 and the remote device, the frequency range from 502 to 405 MHz allocated for the medical implant service (MICS), the corresponding industrial / scientific / medical range (ISM), for example, with a central frequency of 433 MHz or 915 MHz, can be used, Bluetooth 2.4 GHz frequency range or any other frequency range in which the radio signal passes through human tissue. In some embodiments, the antenna 112 may be coupled by the radio module 108. In some embodiments, the antenna 112 may be integrated into the radio module 108.

The tissue thickness analysis module 102 may include one or more power supplies 110 to provide independent power to the controller 106 or the radio module 108. The power supply 110 may be a suitable battery for supplying power to the components of the tissue thickness analysis module 102, for example, a lithium-ion battery or another appropriate battery. In some embodiments, several batteries may be used to provide power to the components of the tissue thickness analysis module 102.

In some embodiments, the implementation of the signal type of the cartridge with brackets generated by identifying means, as well as the signal generated by the tissue thickness sensor 104, can be used to determine whether the width of the tissue fixed between the channel for brackets 22 and the thrust plate 24, the optimal range of thickness of the tissue for the cartridge with brackets 34. In some embodiments, the controller 106 may be configured to match the thickness of the fabric fixed between the channel for brackets 22 and the stop plate 24, the optimal range. In some embodiments, a remote system, such as a remote device located in the handle 6 of a surgical instrument 10, may be configured to determine, or at least a portion of such a determination.

In FIG. 10 is a block diagram of one embodiment of a tissue thickness analysis module 202. In the illustrated embodiment, the tissue thickness analysis module 202 includes a tissue thickness sensor 204, a controller 206, a radio module 208, a power supply 210, and a reed switch 211. As shown in FIG. 10, the tissue thickness sensor 204 may be in communication with the controller 206. As a tissue thickness sensor 204, any suitable sensor can be used to detect tissue thickness fixed between the staple channel 22 and the abutment plate 24 of the surgical instrument 10. In some embodiments, the tissue thickness sensor 204 may be configured to detect a magnetic field generated by a magnet 78 located on the distal end 80 of the abutment plate 24. A magnetic field may characterize the thickness of the fabric, afiksirovannoy in end clamp 12. In some embodiments, as tissue thickness sensor 204 can be used by a Hall sensor.

The controller 206 shown in FIG. 10 may include an identification device 214 for determining the type of cartridge with brackets 34. As an identification device 214, any suitable means used by the controller 206 to determine the type of cartridge for brackets can be used. For example, in some embodiments, the identification device 214 may comprise a memory device. The memory device of controller 206 may comprise one or more solid state drives of read-only memory (ROM) and / or random access memory (RAM). In various embodiments, the controller 206 and memory devices may be integrated into a single integrated circuit (IC) or may be located in different ICs. ROM devices may be flash memory. In the ROM device, data characterizing the type of cartridge with brackets 34 may be stored. For example, data in the type of cartridge with brackets 34 may be stored in the memory device. In some embodiments, data may be stored in the memory device that characterizes the optimum tissue thickness range for the respective cartridge type with brackets 34.

In some embodiments, the identification device 214 may comprise a first plurality of terminals located at a proximal end of a tissue thickness analysis module 102. A second plurality of terminals may be located at a distal end of the cartridge with brackets 34. A subgroup of the first plurality of terminals may be coupled to a second plurality of terminals. The type of cartridge with brackets 34 may be determined by a subgroup of the first plurality of terminals that are associated with the second plurality of terminals. One or more circuits may be configured to identify a subgroup of the first plurality of terminals used for communication, and to transmit a cartridge type signal with brackets to the controller 106 based on the identified subgroup.

In various embodiments, the signal generated by the tissue thickness sensor 204 and the signal generated by the identification device 214 can be used to determine if the tissue thickness recorded in the end clamp 12 matches the tissue thickness signal to the optimal range for the cartridge with brackets 34 based on signal type cartridge with brackets. For example, the tissue thickness determined by the tissue thickness signal can be compared with the optimum tissue thickness range for the cartridge with brackets 34. In some embodiments, the controller 206 may be configured to determine if the measured tissue thickness matches the optimal range. For example, the controller 206 may include a memory device configured to store information about the types of cassettes with brackets and their respective optimal tissue thickness ranges. When the tissue thickness analysis module 202 enters an active state, the identification device 214 may send a cartridge type signal with brackets to the controller 206. When the tissue is fixed in the end clip 12, the controller 206 may receive a signal from the tissue thickness sensor 204 showing the tissue thickness recorded in end clamp 12. The controller 206 can access the memory device and compare the cartridge type signal with the brackets generated by the identification device 214 with the types of cassettes stored in the memory. If the installed cassette type with brackets 34 matches the type of cassette stored in the memory device, the controller 206 may refer to the stored optimum tissue thickness range for that type of cassette 34. The controller 206 can compare the stored optimum tissue thickness range for the cassette with brackets 34 with the fabric thickness detected by the sensor 204, and can generate a status signal showing that the measured tissue thickness matches the optimal range for the cassette with brackets 34. The controller 206 can before Vat status signal on the radio 208 for transmission. In some embodiments, the radio module 208 may transmit a status signal to a receiver located in the handle 6 of the surgical instrument 10. In some embodiments, the radio module 208 may transmit a status signal to a receiver connected to a remote device, such as a video display operating 80, containing the receiver 82 or remote a computer system 84 comprising a receiver 86 (see FIG. 11).

The cartridge with brackets 34 may not be recognized by the identification device 214. In some embodiments, if the identification device 214 cannot recognize the type of cartridge 34 inserted into the channel for the brackets 22, the controller 206 may alert the surgeon that the type of cartridge with the brackets is not recognized . The warning may be in any suitable form, for example, audible, visual and / or sensory. A warning may inform the surgeon that the cartridge with brackets 34 is not recognized and that the surgeon must be careful when using the installed cartridge with brackets 34.

An open range may be used as the optimum tissue thickness range for a particular cassette with brackets. For example, in some embodiments, the optimal range of tissue thickness for a particular cassette with brackets may include any tissue thickness that is less than the maximum thickness. In other embodiments, the optimal range of tissue thickness for a particular cassette with brackets may include any fabric thickness that is greater than the minimum thickness. For example, a bracket cartridge may contain long staples suitable for stitching thick tissue or thin tissue. The optimal range of fabric thickness for this cassette with brackets can be any fabric thickness that is less than the maximum thickness of the fabric for cassettes with brackets.

In some embodiments, a universal cartridge with brackets 34 suitable for stitching tissue of any thickness can be used. If the identifying device 214 determines the presence of a universal cassette with brackets, the controller 206 can signal the surgeon that the installed cartridge 34 is a universal cartridge, and the thickness of the tissue located between the stop plate 24 and the cassette with brackets 34 does not affect the operation of the surgical tool 2.

For example, a cartridge with brackets 34 may be adjacent to the tissue thickness analysis module 202. A cartridge with brackets 34 and a tissue thickness analysis module may be inserted into the channel 22 for staples. An identifying device may identify the cartridge with brackets 34 as a cartridge having an optimal tissue thickness range between the first value is x1 and the second value is x2. The surgeon can fix tissue between the stop plate 24 and the cassette with brackets 34. The thickness gauge of the tissue 204 can generate a signal indicating that the thickness of the tissue fixed between the stop plate 24 and the cassette with brackets 34 is x. In some embodiments, tissue thickness x may be within the optimal range of x1 to x2, and tissue thickness analysis module 202 may inform the surgeon that tissue thickness x is within the optimal range.

In some embodiments, the thickness of the fabric x may be outside the optimal range for the cassette with brackets 34. For example, the thickness of the fabric x may be less than the minimum value x1 of the optimal range. Surgical instrument 2 may issue a warning signal to the surgeon that tissue thickness x is less than the optimal range. Surgical instrument 2 may allow tissue suturing if the measured tissue thickness x is less than the optimal range. As another example, tissue thickness x may be greater than the upper value x2 of the optimal range. Surgical instrument 2 may issue a warning to the surgeon that tissue thickness x is greater than the optimal range. In some embodiments, the surgical instrument 2 may block the operation of the cassette with brackets 34 if the measured tissue thickness x is greater than the optimal range. In some embodiments, the surgical instrument may inform the surgeon of the need to replace the cassette with brackets 34 with a cartridge designed for a different tissue thickness range.

In some embodiments, the controller 206 may be configured to transmit a tissue thickness signal and a cassette-type signal with brackets to the radio module 208 for further transmission to a remote device. The radio module 208 can transmit a tissue thickness signal and a cassette-type signal with brackets to a remote device located away from the end clamp 12, for example, a control circuit in the handle 6 of the surgical instrument 10 or a remote computer system 84. The remote device can be configured to perform comparisons the received tissue thickness signal; the received cassette-type signal with brackets with known optimal tissue thickness ranges. For example, a remote device can be configured to store known types of cassettes with brackets and optimal tissue thickness ranges for known types of cassettes. The received cassette type signal can be compared with known types of cassettes. When determining the match, the obtained tissue thickness signal can be compared with the optimal tissue thickness range for a particular type of cassette with brackets 34. The remote device can generate a status signal showing that the tissue thickness measured based on the tissue thickness signal matches the optimal range for the cassette with brackets 34 The contents of the memory of the remote device can be updated, for example, by connecting to a wired and / or wireless network. New types of cassettes with brackets and optimal ranges of tissue thickness can be added to the contents of the memory of the remote device. In addition, the optimal ranges of tissue thickness for existing types of cassettes with brackets can be adjusted. When updating the contents of the memory of the remote device, you can add or update the types of brackets without needing to update the contents of the memory of the tissue thickness analysis module 202. In some embodiments, the remote device may receive updates periodically or updated when a new or changed type of cartridge is installed.

In some embodiments, after the status signal is generated by the controller 206 or a remote device, this signal can be used to control the operation of the surgical instrument 10. For example, the status signal may be supplied to the drive control circuit in the handle 6 of the surgical instrument 10. The drive control circuit may be configured to control cutting and stitching operations performed by the surgical instrument 10. If the status signal indicates that the measured tissue thickness is in within the optimal range for the cassette with brackets 34, the drive control circuit may allow cutting and stapling operations. If the status signal indicates that the measured tissue thickness is outside the optimal range for the cartridge 34, the drive control circuit may block the cutting and stapling operation and may give the surgeon a warning that the tissue thickness is outside the optimal range.

In some embodiments, a status signal may be displayed to the surgeon through a feedback device. The feedback device may be located on the surgical instrument 10 and may be a remote device, such as a video display of the operating room 80. For example, in some embodiments, the surgical instrument 10 may be equipped with an LED indicator. The LED indicator can be activated when the status signal indicates that the tissue fixed in the end clip 12 has a thickness that is within the optimal range for the cassette with brackets 34. As another example, the video display of the operating room 80 may be configured to display a graphical representation a status signal, for example, displaying an indicator when the measured tissue thickness is within the optimal range. Those skilled in the art will understand that any suitable feedback device may be used to signal the status to the surgeon. In some embodiments, the surgical instrument 2 may comprise a screen window. The screen window may be configured to display a status signal or tissue thickness signal for the surgeon. The screen window can be used to display the measured tissue thickness and the optimal range of tissue thickness for the cassette with brackets 34.

In some embodiments, the tissue thickness analysis module 102 may be configured to install a power key. The power key may be configured to control the operation of the tissue thickness analysis module 102 before installing the cassette with brackets 34 in the channel for the brackets 22. For example, in some embodiments, the tissue thickness analysis module 102 may include a power source 110. The power source 110 may communicate with the controller 106. The controller 106 may determine the presence of a power switch and may maintain a power source 110 and a tissue thickness analysis module 102 in a low power state to save available power from the source power supply 110.

In FIG. 12 shows one embodiment of a tissue thickness analysis module 302 configured to install a power key 320. The power key 320 may include a magnet 378 configured to maintain a tissue thickness sensor 104 in a saturated state when the power key 320 is located adjacent to the tissue thickness analysis module 302 and / or connected to it. The controller 106 may determine a saturation state of the tissue thickness sensor 104 and may maintain the tissue thickness analysis module 302 in a low power state while the tissue thickness sensor 104 is in a saturated state. The reduced power consumption mode may involve a mode in which various components of the tissue thickness analysis module 302 are not receiving power or in which various operations of the tissue thickness analysis module 302 are not performed. For example, in the reduced power consumption state, the controller 106, the radio module 108, and / or tissue thickness sensor 104. When the power switch 320 is turned off or removed away from the tissue thickness analysis module 302, the tissue thickness sensor 104 may become unsaturated. When the controller 106 detects an unsaturated state, it can put the tissue thickness analysis module 302 into an active state to work with the surgical instrument 10. The active state can assume a state in which all the modules and functions of the tissue thickness analysis sensor 302 are powered and ready for use.

In some embodiments, the device may include a reed switch, a power source, and a controller in communication with the power source. The controller may be configured to determine the state of the reed switch. The magnet can be removably located next to the device. The magnet can be configured to create a magnetic field sufficient to maintain the reed switch in a saturated state. The controller can detect a saturation state and keep the device in a low power state while the reed switch is in a saturation state. When the magnet is retracted from the device, the reed switch may become unsaturated. The controller can determine the unsaturated state of the reed switch and transfer the device from the low power state to the active power state.

In FIG. 13 illustrates one embodiment of a Hall sensor 402. A Hall sensor 402 comprises a Hall element 404, an amplifier 406, and a power supply 408. The Hall element comprises a first input terminal 410 and a second input terminal 412. The first and second input terminals 410, 412 are configured to receive a constant the input current from the power source 408. In the absence of a magnetic field, the input current is supplied to the first input terminal 410 and exits from the second input terminal 412 without loss of potential on both sides of the Hall element 404. When the magnetic element is affected by the Hall element 404 of the resultant field created, for example, by magnet 478, potential is generated on the sides of the Hall element 404 due to the deviation of the electrons flowing through the Hall element 404. The first output terminal 414 and the second output terminal 416 are located on opposite sides of the Hall element 404. The first and second output terminals 414 , 416 provide the potential caused by the magnetic field to the amplifier 406. The amplifier 406 increases the potential acting on the Hall element 404, and outputs the amplified voltage to the output terminal 418. The output of the amplifier 406 cannot exceed the limits set by the power source 408. The upper limit of the amplifier 406 is the saturation point for the Hall sensor 402. The saturation point can be selected based on the power source 408 connected to the amplifier 406. Since the saturation occurs on the amplifier 406, and not on the Hall element 404, exposure to a strong magnetic field will not damage the Hall sensor 402, but instead will put it in a saturation state. In some embodiments, an open emitter, an open collector, or a push-pull transistor may be added to the output of amplifier 406.

In FIG. 14 shows one embodiment of a tissue thickness analysis module 502 configured to install a power switch 520. A tissue thickness analysis module 502 may include a first terminal 516 and a second terminal 518 configured to connect a power switch 520. The first terminal 516 and the second terminal 518 may to communicate with the controller 106. The power switch 520 can be configured to create a first state of the electrical circuit between the first terminal 516 and the second terminal 518. The first state of the electrical circuit can be any favoring state between the first terminal 516 and second terminal 518, e.g., open circuit, closed circuit, resistivity, capacitance, inductance or any other suitable circuit state. In some embodiments, the controller 106 can detect the first state of the electrical circuit between the first terminal 516 and the second terminal 518 and maintain the tissue thickness analysis module 502 in a low power state. In some embodiments, the first state of the electrical circuit can block the supply of power from the power source 110 to the components of the tissue thickness analysis module 502, for example using an open circuit, and block the operation of the controller 106, the radio module 108, or other electrical components while the power switch 520 is installed.

In some embodiments, when the power switch 520 is disconnected from the first terminal 516 and the second terminal 518, a second circuit state can be created between the first terminal 516 and the second terminal 518. The first circuit state can be any corresponding circuit state between the first terminal 516 and the second terminal 518 e.g. open circuit or closed circuit. The controller 106 may detect a second state of the electrical circuit and may translate the tissue thickness analysis module 502 into an active power state for operating the surgical instrument 10.

For example, in some embodiments, the power switch 520 may be configured to create a closed circuit between the first terminal 516 and the second terminal 518. The controller 106 may detect a short circuit between the first terminal 516 and the second terminal 518. The controller 106 may support a tissue thickness analysis module 502 in a low power state to save power on the power supply 110 as long as a closed circuit exists between the first terminal 516 and the second terminal 518. Before installing the cartridge with brackets 34 in the channel for brackets 22, the power switch 520 can be disconnected from the tissue thickness analysis module 502. When the power switch 520 is disconnected from the tissue thickness analysis module 502, the circuit between the first terminal 516 and the second terminal 518 can be opened. The controller 106 may detect an open circuit between the first terminal 516 and the second terminal 518 and may put the tissue thickness analysis module 502 into an active state.

As another example, in some embodiments, the power switch 520 may be configured to maintain an open circuit between the first terminal 516 and the second terminal 518. The power supply 110 may be disconnected from the controller 106 and the radio module 108 when the first terminal 516 and the second terminal 518 are in open circuit state. A cartridge with brackets 34 can be inserted into the channel for brackets 22. If a power switch 520 is installed, the surgeon can disconnect it from the tissue thickness analysis module 502. When the power switch 520 is disconnected, the circuit between the first terminal 516 and the second terminal 518 can be made using a direct the connection between the first terminal 516 and the second terminal 518 or through an indirect connection, for example through a cartridge with brackets 34, a channel for brackets 22 or any other suitable part of the end clamp 12. For example, the first terminal 516 and the second terminal 518 may be in a state of closed circuit, when the cartridge with brackets 34 is installed in the channel for the brackets 22 and the power switch 520 is disconnected from the tissue thickness analysis module 502. The closed circuit between the first terminal 516 and the second terminal 518 can connect the power source 110 to the controller 106 and the radio module 108, as a result whereby the tissue thickness analysis module 502 becomes active for use with surgical instrument 10.

In FIG. 15 is a flowchart showing one embodiment of a method for maintaining a tissue thickness analysis module 102 in a low power state. As shown in FIG. 15, at block 602, the controller 106 can detect the power key of the cassette with brackets removable located adjacent to the tissue thickness analysis module 102. The controller 106 can detect the power key of the cassette with brackets, for example, the key 320, 520, using any suitable method for example by determining the status of a circuit or sensor. At step 604, the controller 106 maintains the tissue thickness analysis module 102 in a low power state while the power switch is located adjacent to or attached to the tissue thickness analysis module 102. At step 606, the cassette power key with brackets is disconnected from the tissue thickness analysis module 102. The controller 106 determines the disconnection of the cassette power key with brackets and transfers the tissue thickness analysis module 102 from the low power state to the active state at step 608.

In some embodiments, the tissue thickness analysis module 302 may include a tissue thickness sensor 104 configured to detect a magnetic field, such as a Hall sensor. The power key 320 of the cassette with brackets may be located next to the tissue thickness analysis module 302 and may include a magnet 378 configured to set the tissue thickness sensor 104 to a saturation state. In some embodiments, at 604, the controller 106 in the tissue thickness analysis module 302 can detect a saturation state of the tissue thickness sensor 104. The controller 106 can maintain the tissue thickness analysis module 302 in a low power state while the tissue thickness sensor 104 is in a saturated state. The power key 320 of the cassette with brackets may be disconnected from the tissue thickness analysis module 302. The tissue thickness sensor 104 may transition from a saturated state to an unsaturated state. The controller 106 may determine the unsaturated state of the tissue thickness sensor 104 and may translate the tissue thickness analysis module 302 from the low power state to the active state.

In some embodiments, the tissue thickness analysis module 502 may include a first terminal 516 and a second terminal 518 located on the housing of the tissue thickness analysis module 502. The first terminal 516 and the second terminal 518 may be configured to connect a power switch 520. A power switch 520 may create a first state of the electrical circuit between the first terminal 516 and the second terminal 518. For example, the first state of the electrical circuit may be an open circuit or a closed circuit. At 604, the controller 106 may be configured to determine the presence of a power switch 520 based on the first state of the electrical circuit. The controller 106 may maintain the tissue thickness analysis module 502 in a low power state while the first terminal 516 and the second terminal 518 are in the first state of the electrical circuit. The power switch 520 can be disconnected from the tissue thickness analysis module 502 to allow installation of the cassette with brackets 34 in the channel for the brackets 22. In some embodiments, when the power switch 520 is disconnected, the first terminal 516 and the second terminal 518 can go into the second state of the electrical circuit , for example to a closed circuit or an open circuit state. The controller 106 may determine a second state of the electrical circuit and translate the tissue thickness analysis module 502 from the low power state to the active state.

Although the various embodiments of the tissue thickness analysis module described herein comprise a wireless transmitter and a power source, other embodiments are contemplated. For example, in one embodiment, the at least one conductor, for example, a wire, can pass through the shaft of a surgical instrument and transmit signals and / or power from the handle to the tissue thickness analysis module. In some embodiments, a controller, power source, or other components may be located in the handle and may be connected to a tissue thickness analysis module using a wired connection.

Although the various embodiments of the tissue thickness analysis module described herein are located distally with respect to the cassette with brackets, various other embodiments are provided in which the tissue thickness analysis module can be positioned longitudinally, proximal and / or distal with respect to the cartridge with brackets. In some embodiments, a plurality of tissue thickness analysis modules may be used. In such embodiments, the microcontroller may be configured to process a plurality of tissue thickness signals from a plurality of tissue thickness analysis modules to calculate tissue thickness.

The various embodiments described herein are described in the context of staples removably stored inside staple cassettes for use with surgical stapling instruments. In some circumstances, the staples may include wires that deform upon contact with the abutment of the surgical stapling instrument. Such wires may be formed from a metal, for example, such as stainless steel, and / or from any other suitable material. Such embodiments and the ideas presented herein may be applicable to embodiments that include fasteners configured for removable storage in cartridges with fasteners for use with any suitable stapling surgical instrument.

The various embodiments described herein are described in the context of linear end clips and / or cassettes with linear fasteners. Such embodiments and the ideas presented therein may be applicable to non-linear end clamps and / or cassettes with non-linear fasteners, such as, for example, circular end clamps and / or end clamps of a certain shape. For example, various end clamps, including non-linear end clamps, are disclosed in US Patent Application Ser. No. 13 / 036,647, filed February 28, 2011, entitled “SURGICAL STAPLING TOOL”, is currently the publication of US patent application No. 2011/0226837, which is incorporated herein by reference in its entirety. Additionally, US patent application Ser. No. 12/893 461, filed September 29, 2012, entitled “BRACKET CARTRIDGE”, is currently the publication of US patent application No. 2012/0074198, which is incorporated herein by reference in its entirety. US Patent Application Ser. No. 12 / 031,873, filed February 15, 2008, entitled "END CLIP FOR SURGICAL CUTTING AND BINDING TOOL", currently US Patent No. 7,980,443, is also incorporated herein by reference in its entirety. US Patent No. 8,393,514, entitled “SELECTIVELY ORIENTABLE IMPLANTABLE FASTENING CARTRIDGES”, issued March 12, 2013, is also hereby incorporated by reference in its entirety.

EXAMPLES

A surgical end clamp for treating tissue is described in various embodiments. The surgical end clamp contains a cartridge with brackets. The cassette with brackets contains the proximal end and the distal end. The cassette with brackets is made with the possibility of stitching fabric brackets in the optimal range of tissue thickness. The thrust plate is movably connected relative to the proximal end of the cassette with brackets. The tissue thickness analysis module is located next to the distal end of the cassette with brackets. The tissue thickness analysis module comprises a sensor and a controller. The sensor is configured to generate a signal determining the thickness of the fabric located between the thrust plate and the cassette with brackets. The controller is in communication with the sensor. The controller contains an identifying device for determining the type of cassette with brackets. A cassette-type signal with brackets and a tissue thickness signal are used to determine if the thickness of the fabric matches the optimum range.

In some embodiments, the thrust plate comprises a magnet. The sensor may be configured to detect a magnetic field generated by a magnet. As a sensor, a Hall sensor can be used. In some embodiments, the tissue thickness analysis module comprises a transmitter in communication with the controller. The transmitter may be configured to transmit a cassette-type signal with brackets and a tissue thickness signal to the receiver. A cassette-type signal with brackets and a tissue thickness signal can be received by a receiver in a surgical instrument. The receiver determines whether the measured tissue thickness matches the optimum range.

In some embodiments, the controller may be configured to generate a signal determining if the measured tissue thickness matches the optimum range. The transmitter may be configured to transmit a signal. In some embodiments, the tissue thickness analysis module may comprise at least one power source configured to provide power to the controller.

In some embodiments, the identifying device may comprise a memory device connected to the controller. The memory device may be configured to store data on types of cassettes with brackets. In some embodiments, the identifying device may comprise a first plurality of terminals located on a tissue thickness analysis module and a second plurality of terminals located on a distal end of the cassette with brackets. A subgroup of the first plurality of terminals is associated with a second plurality of terminals. The type of cassette with brackets is determined by a subgroup of the first set of terminals that are connected to the second set of terminals. In some embodiments, the tissue thickness analysis module may be configured to install a power key. The tissue thickness analysis module may comprise a first terminal and a second terminal. The first terminal and the second terminal may be configured to connect a power switch configured to maintain the tissue thickness analysis module in a state of reduced power consumption.

 A bracketed cartridge for use with a surgical stapling instrument is described in various embodiments. The cassette with brackets has a casing with brackets containing a proximal end and a distal end. Many brackets are removably stored in the case with brackets. A plurality of staples are configured to stitch the fabric with staples in the optimal range of fabric thickness. The tissue thickness analysis module is located near the distal end of the staple channel. The tissue thickness analysis module comprises a sensor and a controller. The sensor is configured to generate a signal that determines the thickness of the fabric located between the thrust plate and the cassette with brackets. The controller is in communication with the sensor. The controller contains an identifying device for determining the type of cassette with brackets. A cassette-type signal with brackets and a tissue thickness signal are used to determine if the tissue thickness matches the optimum range.

In some embodiments, the tissue thickness analysis module comprises a transmitter in communication with the controller, and at least one power source configured to provide power to the controller and transmitter. The transmitter may be configured to transmit a cassette-type signal with brackets and a tissue thickness signal. A cassette-type signal with brackets and a tissue thickness signal can be received by a receiver in a surgical instrument. The receiver determines whether the thickness of the fabric matches the optimum range. In some embodiments, the controller is configured to generate a signal determining tissue thickness to match the optimal range. The transmitter may be configured to transmit a signal.

In some embodiments, the identifying device may comprise a memory device in communication with the controller. The memory device is configured to store data about the types of cassettes with brackets. In some embodiments, the identifying device may comprise a first plurality of terminals located on a tissue thickness analysis module and a second plurality of terminals located on a distal end of the cassette with brackets. A subgroup of the first plurality of terminals may be associated with a second plurality of terminals. The type of cassette with brackets is determined by a subgroup of the first set of terminals that are connected to the second set of terminals.

In some embodiments, a Hall sensor may be used as a sensor. In some embodiments, the tissue thickness analysis module may be configured to install a removable power key. The power switch may be configured to maintain a tissue thickness analysis module in a state of reduced power consumption. The removable power key may include a magnet configured to maintain the sensor in a saturated state. The low power state can be maintained while the sensor is in a saturated state.

A tissue thickness analysis module for connecting to a surgical cassette with brackets configured to staple tissue is described in various embodiments. The tissue thickness analysis module comprises a sensor and a controller. The sensor is configured to detect a magnetic field that characterizes the thickness of the tissue fixed opposite the cassette with brackets. The controller is in communication with the sensor. The controller contains an identifying device for determining the type of cassette with brackets. Cassette type and tissue thickness are used to determine if tissue thickness matches the optimal range for the surgical cassette with brackets. The transmitter is in communication with the controller. At least one power source is configured to supply power to the controller and transmitter.

A bracketed cartridge for use with a surgical stapling instrument is described in various embodiments. The cartridge with brackets has a case with brackets containing a proximal end and a distal end. The tissue thickness analysis module is connected to the distal end of the body with brackets. The tissue thickness analysis module comprises a controller and a sensor. The power key is removably positioned relative to the tissue thickness analysis module. The controller is configured to detect a power key. When the controller detects a power switch, the controller supports the tissue thickness analysis module in a low power state. When the power switch is turned off, the controller puts the tissue thickness analysis module into a state of active power.

In some embodiments, a Hall sensor is used as the sensor, and the power key contains a magnet. The magnet is configured to maintain the Hall sensor in a saturated state when the power switch is located relative to the tissue thickness analysis module. The controller determines the saturation state of the Hall sensor and maintains a low power state while the Hall sensor is in a saturation state. When the power switch is disconnected from the tissue thickness analysis module, the Hall sensor goes into an unsaturated state. The controller detects the unsaturated state of the Hall sensor and puts the tissue thickness analysis module in the active state.

In some embodiments, the bracket cartridge comprises a first terminal and a second terminal. The power switch creates the first state of the electrical circuit between the first terminal and the second terminal. The controller detects the first state of the electrical circuit and maintains the tissue thickness analysis module in a low power state while the first terminal and the second terminal are in the first state of the electrical circuit. When the power switch is disconnected from the tissue thickness analysis module, the first terminal and the second terminal go into the second state of the electrical circuit. The controller detects the second state of the electrical circuit and puts the tissue thickness analysis module into the active state.

In some embodiments, the first state of the electrical circuit is a closed circuit between the first terminal and the second terminal, and the second state of the electrical circuit is an open circuit between the first terminal and the second terminal. In some embodiments, the first state of the electrical circuit is an open circuit between the first terminal and the second terminal, and the second state of the electrical circuit is an open circuit between the first terminal and the second terminal. A closed circuit between the first terminal and the second terminal can be established using the connection between the cassette with brackets and surgical stapling instrument, when the cartridge with brackets is inserted into it.

A device comprising a Hall sensor, a power source, and a controller is described in various embodiments. The controller is configured to receive power from a power source. The controller is configured to maintain the device in a low power state when the reed switch is in a saturated state. The controller is configured to put the device into an active state when the Hall sensor is in an unsaturated state.

A method for power management of a cassette unit with brackets equipped with a tissue thickness analysis module is described in various embodiments. The method includes detecting, with the help of the controller, a power key removably located next to the tissue thickness analysis module. An additional method includes maintaining, with a controller, a tissue thickness analysis module in a state of reduced power consumption when a power switch is detected. The controller goes into active state when the power switch is disconnected from the tissue thickness analysis module.

In some embodiments, detecting a power key may include determining, with a controller, the state of the sensor. The status of the sensor indicates the presence of a power key installed relative to the specified module for the analysis of tissue thickness. As a sensor, a Hall sensor can be used. The sensor state may be a saturation state. In some embodiments, detecting a power switch may include determining, with a controller, the first state of the electrical circuit between the first terminal and the second terminal. The first state of the electrical circuit indicates the presence of a power switch installed relative to the tissue thickness analysis module. The controller may be configured to determine a second state of the electrical circuit between the first terminal and the second terminal. The second state of the electrical circuit indicates the absence of a power switch installed relative to the tissue thickness analysis module.

In some embodiments, the first state of the electrical circuit may be a closed circuit between the first terminal and the second terminal, and the second state of the electrical circuit may be an open circuit between the first terminal and the second terminal. In some embodiments, the first state of the circuit may be an open circuit between the first terminal and the second terminal, and the second state of the circuit may be a closed circuit between the first terminal and the second terminal.

In some embodiments, the method may further include installing a cartridge with brackets in a surgical stapling instrument. The power key can be disconnected from the tissue thickness analysis module. A surgical stapling instrument can make a chain connection between the first terminal and the second terminal.

A method for controlling a device comprising a controller, a power source, and a reed switch is described in various embodiments. The method includes determining, using the controller, the saturation state of the reed switch. The reed switch is maintained in a saturated state with a power switch located relative to the reed switch. The power key contains a magnet configured to create a magnetic field, setting the reed switch in a saturation state. The method further includes maintaining, with the controller, the device in a locked state while the reed switch is in a saturated state. A locked state of a device is a low power state. The method further includes transferring, with the help of the controller, the device to the unlocked state, and this transfer occurs when the power switch is disconnected from the reed switch and the latter goes into an unsaturated state. An unblocked device state is an active state.

Various embodiments of surgical instruments and robotic surgical systems are described herein. Those skilled in the art will understand that the various embodiments described herein can be used with the described surgical instruments and robotic surgical systems. The descriptions are provided by way of example only, and those skilled in the art will understand that the described embodiments are not limited to the devices described herein and can be used with any suitable surgical instrument or robotic surgical system.

In the present description, a reference to “various embodiments”, “some embodiments”, “one embodiment” or “embodiment” means that a particular feature, design, or characteristic described in connection with an embodiment is included in at least one an example of an embodiment. Thus, the phrases “in various embodiments”, “in some embodiments”, “in one example embodiment” or “in an embodiment” used herein do not necessarily refer to the same embodiment. In addition, certain properties, design features, or characteristics shown in the accompanying illustrations or described in connection with one example of an embodiment of the present invention may be combined, partially or fully, with the properties, structural elements, or characteristics of one or more other embodiments of the present invention without restrictions.

Although various embodiments of the present invention have been illustrated by various embodiments, and these embodiments have been described in sufficient detail, the applicant does not intend to reduce or otherwise limit the scope of the attached claims. Additional benefits and modifications may be apparent to those skilled in the art. For example, each of the described embodiments may be used in endoscopy, laparoscopy, and open surgical procedures, not limited to its intended use.

It should be understood that at least some of the figures and descriptions given here have been simplified to represent elements that are important for a clear understanding of the invention, while other elements have been removed for clarity. However, it will be understood by those skilled in the art that these and other elements may be desirable.

Although some modifications of the invention have been described, however, it should be apparent that various modifications, changes, and adaptations of these embodiments can be carried out by those skilled in the art to achieve some or all of the advantages of the spirit of the present invention. For example, in accordance with various embodiments, one component may be replaced by a plurality of components, and many components may be replaced by a single component to perform a given function or functions. Therefore, this application is intended to cover all such modifications, changes and adaptations without departing from the essence and scope of the described invention, which is defined in the claims.

Any patent, publication or other description material that is fully or partially incorporated herein by reference is an integral part of this document to the extent that they do not contradict the existing definitions, statements or other description materials presented in this description. Thus, to the extent necessary, the disclosure, as explicitly presented herein, takes precedence over any conflicting material incorporated herein by reference. Any material or part thereof, indicated as incorporated herein by reference, but contrary to existing definitions, provisions, or other description material presented herein, will be included in this document only to the extent that between the included material and the existing description material no contradictions arise.

Claims (39)

1. The cartridge for staples for use in a surgical stapling instrument, the cartridge contains: a bracket case having a proximal end and a distal end; a tissue thickness determination module associated with a distal end of the cartridge body, the tissue thickness determination module comprising: controller; and sensor; and moreover, the controller is configured to detect a power key, located with the possibility of removal relative to the module to determine the thickness of the fabric, and the controller is configured to detect a power key, the controller is configured to maintain the module to determine the thickness of the tissue in a state of reduced power consumption when a power key is detected, and when this controller is configured to translate the module for determining the thickness of the fabric in the active state when removing the power key. 2. The cartridge according to claim 1, which further comprises a power key located with the possibility of removal relative to the module for determining the thickness of the fabric. 3. The cartridge according to claim 2, in which: the sensor contains a Hall effect sensor; and wherein the power key contains a magnet, and the magnet is configured to hold the Hall effect sensor in a saturated state when the power key is located relative to the tissue thickness determination module, and the controller is configured to detect a saturation state of the Hall effect sensor, and hold the state low power consumption while the Hall effect sensor is in a saturated state. 4. The cartridge according to claim 3, in which, when the power key is removed from the module for determining the thickness of the fabric, the Hall effect sensor goes into an unsaturated state, and the controller is configured to detect an unsaturated state of the sensor on the Hall effect, and transfer the tissue thickness determination module in an active state. 5. The cartridge according to any one of paragraphs. 2-4, containing: a first terminal and a second terminal; moreover, the power switch is configured to create a first state of the electric circuit between the first terminal and the second terminal, while the controller is configured to detect the first state of the electric circuit and keep the low level of energy consumption, while the first terminal and the second terminal are in the first state of the electric circuit . 6. The cartridge according to claim 5, wherein when removing the power key from the tissue thickness determination module, the first terminal and the second terminal are configured to transition to a second state of the electrical circuit, and wherein the controller is configured to detect a second state of the electrical circuit and translate the thickness determination module tissue in an active state. 7. The cartridge of claim 6, wherein the first state of the electrical circuit is a short circuit between the first terminal and the second terminal, wherein the second state of the electrical circuit is an open circuit between the first terminal and the second terminal. 8. The cartridge of claim 6, wherein the first state of the electrical circuit is an open circuit between the first terminal and the second terminal, wherein the second state of the electrical circuit is a short circuit between the first terminal and the second terminal. 9. The cartridge of claim 8, wherein the short circuit between the first terminal and the second terminal is established by connecting between the staple cartridge and the surgical stapling instrument when the staple cartridge is inserted into the surgical stapling instrument. 10. The cartridge according to claim 2, in which the sensor contains a reed switch; and the power key contains a magnet, and the magnet is configured to maintain the reed switch in a saturated state when the power key is located relative to the tissue thickness determination module, and the controller is configured to maintain the fabric thickness determination module in a low power state when the reed switch is in a saturated state and moreover, the controller is configured to translate the module for determining the thickness of the fabric in the active state when the reed switch spruce is in an unsaturated state. 11. A method of controlling power supply of a cartridge block for staples having a module for determining tissue thickness, the method comprising: detection with the controller of a power key located with the ability to remove next to the module to determine the thickness of the fabric; maintaining with the help of the controller, the module for determining the thickness of the tissue in a state of reduced power consumption, when a power switch is detected; and translation using the controller, the module for determining the thickness of the fabric in the active state, when the power key is removed from the module for determining the thickness of the fabric. 12. The method according to p. 11, in which the detection of the power key contains: detection by the controller of the state of the sensor, while the state of the sensor indicates that the power switch is located relative to the module for determining the thickness of the fabric. 13. The method of claim 12, wherein the sensor comprises a reed switch and said state is a saturation state. 14. The method according to PP. 11-13, in which the detection of the power key contains: detection by the controller of the first state of the electrical circuit between the first terminal and the second terminal, the first state of the electrical circuit indicating that the power switch is located relative to the module for determining the thickness of the fabric. 15. The method according to p. 14, containing: detection by a controller of a second state of the electrical circuit between the first terminal and the second terminal, the second state of the electrical circuit indicating that the power switch is not located relative to the module for determining the thickness of the fabric. 16. The method of claim 15, wherein the first state of the electrical circuit is a short circuit between the first terminal and the second terminal, and wherein the second state of the electrical circuit is an open circuit between the first terminal and the second terminal. 17. The method of claim 15, wherein the first state of the electrical circuit is an open circuit between the first terminal and the second terminal, and wherein the second state of the electrical circuit is a short circuit between the first terminal and the second terminal. 18. The method according to p. 17, containing: inserting a staple cartridge into a surgical stapler; removing a power key from the tissue thickness determination module; and performing a surgical stapling instrument connecting a chain between the first terminal and the second terminal.

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