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WO2025101343A1 - Générateur rf portatif avec pointe distale, commande manuelle et au pied - Google Patents

Générateur rf portatif avec pointe distale, commande manuelle et au pied Download PDF

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Publication number
WO2025101343A1
WO2025101343A1 PCT/US2024/051915 US2024051915W WO2025101343A1 WO 2025101343 A1 WO2025101343 A1 WO 2025101343A1 US 2024051915 W US2024051915 W US 2024051915W WO 2025101343 A1 WO2025101343 A1 WO 2025101343A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
circuitry
configuration information
wand tip
output port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2024/051915
Other languages
English (en)
Inventor
Samarth MEHTA
Yohan PREVOT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith and Nephew Orthopaedics AG
Smith and Nephew Asia Pacific Pte Ltd
Smith and Nephew Inc
Original Assignee
Smith and Nephew Orthopaedics AG
Smith and Nephew Asia Pacific Pte Ltd
Smith and Nephew Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith and Nephew Orthopaedics AG, Smith and Nephew Asia Pacific Pte Ltd, Smith and Nephew Inc filed Critical Smith and Nephew Orthopaedics AG
Publication of WO2025101343A1 publication Critical patent/WO2025101343A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/148—Probes or electrodes therefor having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1485—Probes or electrodes therefor having a short rigid shaft for accessing the inner body through natural openings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00321—Head or parts thereof
    • A61B2018/00327—Ear, nose or throat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00452—Skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00565—Bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00589—Coagulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device
    • A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A61B2018/00922—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device by switching or controlling the treatment energy directly within the hand-piece
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00988—Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A61B2018/1226—Generators therefor powered by a battery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration

Definitions

  • the present disclosure relates to RF generators for surgical systems, and more particularly to a handheld RF generator.
  • a surgical system may include one or more surgical tools or instruments configured to facilitate surgical procedures.
  • radio frequency (RF) generators may be used in various surgical procedures (e.g., arthroscopic procedures, ear, nose, and throat (ENT) procedures, etc.).
  • RF generators are used to perform RF ablation.
  • RF generators can be used to perform tissue tightening, lifting, coagulation, etc.
  • a handheld radio frequency (RF) generator configured to perform a surgical procedure includes a body including a housing, a proximal end, a distal end, and an output port located at the distal end of the body, RF circuitry enclosed within the housing of the body configured to generate and output an RF signal via the output port, and control circuitry enclosed within the housing of the body, the control circuitry configured to selectively control generation of the RF signal using the RF circuitry, obtain, from a wand tip coupled to the output port, configuration information indicating operating parameters for the RF generator during the surgical procedure, the wand tip being configured to receive, via the output port, the RF signal generated by the RF circuitry, and control the RF circuitry to generate the RF signal in accordance with the operating parameters indicated by the configuration information.
  • RF radio frequency
  • FIG. 1 shows a surgical system in accordance with at least some embodiments
  • FIG. 2A shows an example handheld RF generator in accordance with at least some embodiments
  • FIG. 2B shows an example tip of a handheld RF generator in accordance with at least some embodiments
  • FIG. 3 illustrates steps of an example method for operating a handheld RF generator in accordance with at least some embodiments.
  • FIG. 4 shows a computer system in accordance with at least some embodiments.
  • a processor programmed to perform various functions refers to one processor programmed to perform each and every function, or more than one processor collectively programmed to perform each of the various functions.
  • an initial reference to “a [referent]”, and then a later reference for antecedent basis purposes to “the [referent]”, shall not obviate the fact the recited referent may be plural.
  • a timer circuit may define a clock output.
  • the example timer circuit may create or drive a clock signal on the clock output.
  • these “inputs” and “outputs” define electrical connections and/or signals transmitted or received by those connections.
  • these “inputs” and “outputs” define parameters read by or written by, respectively, the instructions implementing the function.
  • “input” may refer to actions of a user, interactions with input devices or interfaces by the user, etc.
  • Controller shall mean, alone or in combination, individual circuit components, an application specific integrated circuit (ASIC), a microcontroller with controlling software, a reduced-instruction-set computer (RISC) with controlling software, a digital signal processor (DSP), a processor with controlling software, a programmable logic device (PLD), a field programmable gate array (FPGA), or a programmable system-on-a-chip (PSOC), configured to read inputs and drive outputs responsive to the inputs.
  • ASIC application specific integrated circuit
  • RISC reduced-instruction-set computer
  • DSP digital signal processor
  • PLD programmable logic device
  • FPGA field programmable gate array
  • PSOC programmable system-on-a-chip
  • proximal refers to a point or direction nearest a handle of the instrument (e.g., a direction opposite the instrument tip).
  • distal refers to a point or direction nearest the instrument tip (e.g., a direction opposite the handle).
  • Surgical procedures may implement various systems and methods for operating and controlling surgical systems.
  • a surgical system may include one or more surgical tools or instruments configured to facilitate surgical procedures, such as RF generators.
  • these procedures are performed in office and ambulatory surgical settings, which typically have limited space.
  • Accommodating equipment with large space requirements, such as desktop RF generators may be difficult.
  • desktop RF generators may have associated cables, wands, saline tubes, an intravenous (IV) pole and saline bag, foot pedals, etc.
  • IV intravenous
  • Systems and methods of the present disclosure are configured to implement a handheld RF generator (i.e. , an RF generator integrated with a handheld tool) having reduced space requirements relative to conventional desktop RF generators and associated components.
  • the handheld RF generator allows a surgeon to perform a surgery without having a long cable attached to a console. Further, a cable between a wall power supply and a power generator is not required.
  • the handheld RF generator is configured to fit in one hand and, in some examples, is powered by a rechargeable battery pack.
  • the handheld RF generator is extremely lightweight and portable, allowing surgeons to easily carry the generator to and between surgical sites (e.g., in a backpack).
  • the handheld generator can be single use (e.g., disposable) or reusable.
  • FIG. 1 shows an example surgical system 100.
  • the example surgical system 100 comprises a tower or device cart 102, an example mechanical resection instrument 104, an example plasma-based ablation instrument (hereafter just ablation instrument 106), and an endoscope in the example form of an arthroscope 108 and attached camera head or camera 110.
  • the arthroscope 108 is a rigid device, unlike endoscopes for other procedures, such as upper-endoscopies.
  • the device cart 102 may comprise a display device 114, a resection controller 116, and a camera control unit (CCU) together with an endoscopic light source and video (e.g., a VBN) controller 118.
  • the combined CCU and video controller may hereafter be referred to as the surgical controller 118.
  • the CCU and video controller may be a separate and distinct system from the controller that handles other functions.
  • the example device cart 102 further includes a pump controller 122 (e.g., single or dual peristaltic pump). Fluidic connections of the mechanical resection instrument 104 and ablation instrument 106 to the pump controller 122 are not shown so as not to unduly complicate the figure. Similarly, fluidic connections between the pump controller 122 and the patient are not shown so as not to unduly complicate the figure. In the example system, both the mechanical resection instrument 104 and the ablation instrument 106 are coupled to the resection controller 116. In other cases, however, there may be a mechanical resection controller separate and distinct from an ablation controller.
  • the example devices and controllers associated with the device cart 102 are merely examples, and other examples include vacuum pumps, patientpositioning systems, robotic arms holding various instruments, ultrasonic cutting devices and related controllers, patient-positioning controllers, and robotic surgical systems.
  • FIG. 1 further shows additional instruments that may be present during a surgical procedure.
  • a probe 124 e.g., shown as a touch probe, but which may be a touchless probe in other examples
  • a drill guide or aimer 126 are shown.
  • the probe 124 may be used during the surgical procedure to provide information to the surgical controller 118, such as information to register anatomical features in images captured by the arthroscope 108 and camera head 110.
  • the aimer 126 may be used as a guide for placement and drilling with a drill wire to create an initial or pilot tunnel through the bone.
  • FIG. 1 Also shown in FIG. 1 is an example handheld RF generator 130 according to the principles of the present disclosure.
  • the handheld RF generator 130 is not coupled to the device cart 102, but in other examples the handheld RF generator 130 may be optionally coupled to the device cart 102, a desktop console or unit, or other control device.
  • the handheld RF generator 130 according to the principles of the present disclosure is configured to operate without being coupled to the device cart 102 (e.g., to receive control signals, power, etc.), but may be configured to optionally coupled to the device cart 102 or other device (e.g., to receive power, to charge the handheld RF generator 130, etc.).
  • FIG. 1 Also shown in FIG. 1 is an example handheld RF generator 130 according to the principles of the present disclosure.
  • the handheld RF generator 130 is not coupled to the device cart 102, but in other examples the handheld RF generator 130 may be optionally coupled to the device cart 102, a desktop console or unit, or other control device.
  • the handheld RF generator 130 may have other configurations, such as a pistol grip configuration as shown at 132.
  • FIGS. 2A and 2B show an example handheld RF generator 200 (e.g., corresponding to the handheld RF generator 130 of FIG. 1 ) configured to couple to a tip 204 according to the present disclosure in more detail.
  • the tip 204 as described herein may be referred to as a distal tip or wand tip.
  • the tip 204 is configured to receive an RF signal from the handheld RF generator 200 and provide the RF signal at a surgical site.
  • the handheld RF generator 204 has a wand-shaped configuration with a “pen grip.”
  • the handheld RF generator 204 includes a body 208 having a proximal handle portion 212 and a distal wand portion 214.
  • the handle portion 212 may be generally cylindrical while the wand portion 214 is tapered and/or has a smaller diameter than the handle portion.
  • the body 208 may have a generally uniform diameter, a capsular shape, a bullet shape, etc.
  • the body 208 is defined by a housing 216 enclosing internal components and circuitry of the handheld RF generator.
  • the handheld RF generator 200 may include an input port 220 and an output port 222.
  • the input port 220 may be arranged at a proximal end of the handheld RF generator 200 (e.g., at a proximal end of the handle portion 212). As shown, the input port 220 has a socket or receptacle configuration.
  • the output port 222 may be arranged at a distal end of the handheld RF generator 200 (e.g., at a distal end of the wand portion 214). As shown, the output port 222 has a plug configuration.
  • the output port 222 is configured to couple to (e.g., insert into) an input port 224 of the wand tip 204.
  • the housing 216 encloses components of the handheld RF generator 200 including, but not limited to, a controller or control circuitry 228, a battery module 230, and an output interface 232.
  • the housing 216 may be comprised of plastic and/or other polymer materials.
  • the housing 216 may be waterproof (i.e., the housing 216 may have a sealed construction) and be comprised of a material suitable for sterilization (e.g., materials that can withstand high-temperature autoclave sterilization).
  • the battery module 230 and/or the output interface 232 may be incorporated within the controller 228.
  • the controller 228 may include various components and circuitry associated with generating, controlling, and outputting an RF signal to be delivered to a surgical site via the wand tip 204, such as a processor or other control circuitry, memory, RF voltage generation circuitry, sensing circuitry, etc.
  • the housing 216 may include components related to additional functions (i.e., functions other than RF generation functions), such as irrigation and/or suction functions (e.g., pump circuitry, fluid channels in fluid communication with the wand tip 204 and a fluid source or reservoir external to the handheld RF generator 200, etc.). Examples of a controller configured for use with an RF generator is described in more detail in U.S. Patent No. 12,016,616, the entire contents of which is incorporated herein by reference.
  • the battery module 230 provides power to the components of the handheld RF generator 200, including power for generating the RF signal.
  • the battery module 230 is rechargeable (e.g., via a charging cable coupled to the input port 220).
  • the battery module 230 may be single use.
  • the battery module 230 may include both a battery or battery pack and a battery management system (BMS). The BMS may be configured to manage charging and discharging functions of the battery module 230.
  • the handheld RF generator may be configured to implement Qi or other wireless charging technology, allowing for cordless charging and reducing the need for physical connectors.
  • the output interface 232 may include circuitry and wiring configured to electrically couple the RF signal generated by the controller 228 to the output port 222.
  • the output interface 232 may be electrically coupled to the controller 228, the battery module 230, and/or the output port 222 via respective wiring.
  • the output interface 232 may be configured to receive various signals (e.g., the RF signal, data signals, etc. and couple the various signals to respective pins, leads, etc.
  • the controller 228 may be configured to receive commands for controlling RF signal generation via various inputs, such as one or more finger switches arranged on a user interface 236 of the handheld RF generator 200.
  • the user interface 236 may include a display or display interface, such as one or more LEDs or other indicators configured to provide immediate visual feedback on device status, operational modes, alerts, etc.
  • the handheld RF generator 200 may be configured to couple to a foot control device 238, a hand control device 240, and/or other control device (e.g., via a cable 242 or other connection interface coupled to the input port 220).
  • the devices 238/240 may be configured to control various functions of the handheld RF generator 200, such as activating and deactivating RF output, controlling different levels of RF output, etc.
  • the devices 238/240 can be single use or reusable.
  • the devices 238/240 may include a battery module (e.g., a battery module including a battery pack, a BMS, etc.) instead of or in addition to the battery module 230 of the handheld RF generator 200.
  • the devices 238/240 may be configured to provide power for operating the handheld RF generator 200.
  • the handheld RF generator 200 may be configured to implement Bluetooth or other short-range wireless communication functionality to connect with tablets or other computing devices, allowing users to access, adjust, and monitor device settings through a dedicated application interface.
  • FIG. 2B shows the wand tip 204 of the handheld RF generator 200 in more detail.
  • the output port 222 may have a plug configuration similar to a stereotype plug, which may be referred to as a tip-ring-sleeve (TRS) (or tip-ring-ring-sleeve (TRRS), tip-ring-ring-ring-sleeve (TRRRS), etc.) or a phone connector.
  • TRS tip-ring-sleeve
  • TRRS tip-ring-ring-sleeve
  • TRRRS tip-ring-ring-ring-sleeve
  • Such connectors are generally linear and have multiple contact or connection interfaces (e.g., referred to herein as contact interfaces 244) separated by insulators (e.g., insulator bands or rings) 246.
  • insulators e.g., insulator bands or rings
  • each of the contact interfaces 244 is configured to provide different respective signals to and from the input port 224 of the wand tip 204.
  • the wand tip 204 may have a pen cap configuration (e.g., a cylindrical or conical shape) configured to couple to fit over the output port 222.
  • the wand tip 204 may include a plug type port or connection while the output port 222 of the handheld RF generator has a socket or receptacle configuration.
  • a proximal end of the wand tip 204 including the input port 224 may be configured to insertably receive the output port 222.
  • the input port 224 includes complementary contact interfaces 248 configured to engage the contact interfaces 244 of the output port 222.
  • the output port 222 and the input port 224 together provide a friction fit to retain the wand tip 204 on the handheld RF generator 200 and electrically couple the contact interfaces 244 and 248.
  • the wand tip 204 may be retained on the handheld RF generator 200 using various other coupling mechanisms, such as a latching mechanism.
  • the output port 222 may include fewer or more of the contact interfaces 244.
  • the wand tip 204 includes a generally cylindrical outer sleeve 252 configured to enclose the output port 222, the input port 224, and other components as described below in more detail, and an RF generator tip 254 located at a distal end of the outer sleeve 252.
  • the outer sleeve 252 is comprised of a non-conductive material.
  • the RF generator tip 254 is comprised of a conductive material configured to deliver RF energy at a surgical site.
  • the output port 222 provides, via respective contact interfaces 244, RF active and neutral connections (e.g., to respective electrodes of the RF generator tip), data and communication connections, power connections, etc.
  • sensing circuitry 256 may be configured to (e.g., using temperature sensor circuitry, thermistor circuitry, thermocouple circuitry, etc.) sense and monitor temperatures at the distal end of the wand tip 204.
  • the sensing circuitry 256 may be configured to sense and monitor electrical characteristics, such as electrical characteristics of the RF signal provided to the RF generator tip 254, RF energy delivered by the RF generator tip 254, etc.
  • the wand tip 204 further includes memory or memory circuitry 260.
  • the memory 260 may include volatile and/or non-volatile memory.
  • the memory 260 may correspond to configuration circuitry.
  • configuration circuitry may refer to circuitry that stores and/or provides configuration information associated with the wand tip 204 and the handheld RF generator 200.
  • the configuration circuitry may store the configuration information for use/retrieval by the handheld RF generator 200.
  • the configuration circuitry may be implemented as other types of hardware circuitry, such as a programmable logic array or circuitry responsive to an input received from the handheld RF generator, microcontroller, memory having a communication interface, RFID circuitry (e.g., responsive to an RFID transmitter of the handheld RF generator 200), register circuitry, etc.
  • the configuration information may be indicated/provided by mechanical configuration techniques, such as with keying or pin-based identification techniques.
  • configuration information can be obtained from the wand tip 204 using device fingerprinting techniques (e.g., by sensing, at the handheld RF generator 200, mechanical and/or electrical characteristics of the wand tip 204).
  • configuration information may be indicated/provided by magnetic configuration techniques (e.g., magnetic configuration techniques implementing polarity combinations).
  • magnetic configuration techniques e.g., magnetic configuration techniques implementing polarity combinations.
  • various combinations of magnet polarity can be used to indicate various configuration information.
  • a sensor such as a Hall effect sensor implemented by the handheld RF generator 200, is used to read the polarity.
  • the configuration information stored or otherwise obtained from the wand tip 204 may indicate: a type of the wand tip 204 (i.e. from among a plurality of types of wand tips); characteristics of the wand tip 204 (e.g., material, size, surgical procedure, etc.); and/or specific operating parameters to be implemented by the handheld RF controller (e.g., voltage ranges or limits, current ranges or limits, operating temperature ranges or limits, frequencies, etc.).
  • the configuration information may include wand tip-specific information (e.g., a serial number) identifying the individual wand tip.
  • the configuration information may include information verifying the authenticity of the wand tip 204 (e.g., to prevent the use of counterfeit or unapproved wand tips with the handheld RF generator 200).
  • the configuration information may be used to prevent reuse of the wand tip 204, prevent use longer than a threshold duration, etc.
  • the handheld RF generator 200 may store information indicating that a specific wand tip was previously used (such as by storing an identifier of a specific wand tip upon connection to the handheld RF generator, during use, upon completion of a surgical procedure using the wand tip, etc.) and prevent operation of the handheld RF generator in response to a determination that the wand tip was previously used.
  • the information may be stored in the memory 260.
  • the wand tip 204 may include a mechanical tab, a fuse or fusible link, etc. that is broken or otherwise modified when the wand tip 204 is removed to prevent reuse.
  • the handheld RF generator 200 may be configured to determine operating parameters based on the type of the wand tip 204.
  • the handheld RF generator 200 e.g., the controller 2248 may store information, such as a lookup table or other indexing information, correlating the type of the wand tip 204 to corresponding operating parameters.
  • the operating parameters may include coefficients for specific filtering or control algorithms associated with control of the handheld RF generator 200.
  • the configuration information may include a binary representation of the n types of wand tips (e.g., for eight types of wand tips, the configuration information may include a 3- bit indication of the type of wand tip).
  • the handheld RF generator 200 Upon installation of the wand tip 204 and/or powering up the handheld RF generator 200 (either prior to or subsequent to installation), the handheld RF generator 200 obtains the configuration information, determines the operating parameters based on the type of wand tip indicated by the configuration information, and sets/configures the operating parameters of the handheld RF generator 200 accordingly (e.g., sets voltage ranges or limits, current ranges or limits, etc.).
  • the handheld RF generator 200 obtains the configuration information, determines the operating parameters as indicated by the configuration information, and sets/configures the operating parameters of the handheld RF generator 200 accordingly.
  • the handheld RF generator 200 obtains the configuration information, determines the operating parameters based on the characteristics of the wand tip 204, and sets/configures the operating parameters of the handheld RF generator 200 accordingly.
  • the handheld RF generator 200 e.g., the controller 2248 may be configured to calculate or otherwise determine (e.g., using a lookup table or other stored data as described above) the operating parameters based on the characteristics.
  • these characteristics may include size (e.g., length, diameter, etc.), materials, electrode characteristics, type of surgical procedure, etc., which may require certain operating parameters.
  • the configuration information may indicate or be used to obtain various operating parameters associated with use of the battery module 230.
  • the configuration information may indicate: an expected charge requirement for the battery module 230; whether a duration of the procedure will exceed the available charge of the battery module 230; whether another power source (e.g., an off-device battery or other power source) will be required, etc.
  • the handheld RF generator 200 provides an economical and lightweight RF generator to perform surgical procedures without a need for significant space in an office, ambulatory service environment, etc. Further, the reduced size of the handheld RF generator 200 reduces disposable biohazard waste and carbon footprint.
  • the handheld RF generator 200 as described above may implement various additional features not described herein.
  • the wand tip 204 may be integrated with the handheld RF generator 200 rather than being removable.
  • FIG. 3 illustrates steps of an example method 300 for configuring a handheld RF generator for a surgical procedure based on a specific or type of wand tip (e.g., method performed using any of the systems or devices described herein, such as the system 100, the handheld RF generator 200, etc.).
  • steps of the method 300 may be performed by a controller or control circuitry, such as the controller 228, individually and/or in conjunction with one or more other components, such as the wand tip 204.
  • the method 300 includes connecting a removable or disposable wand tip to a handheld RF generator.
  • Connecting the wand tip may include inserting a plug connector on a distal end of the handheld RF generator into a socket connector of the wand tip or vice versa.
  • the plug connector has a TRS, TRRS, or similar configuration.
  • the method 300 includes obtaining, from the wand tip, configuration information indicating operating parameters of the handheld RF generator.
  • the configuration information may include one or more of an indication of a type of the wand tip, characteristics of the wand tip, the operating parameters, etc. as described herein.
  • the method 300 includes setting or configuring the handheld RF generator to operate in accordance with the operating parameters obtained at 308.
  • setting or configuring the handheld RF generator may include, but is not limited to, setting ranges and/or limits of various operating parameters during use of the handheld RF generator, such as setting voltage ranges, current ranges, etc.
  • the method 300 includes using the handheld RF generator to perform a surgical procedure (e.g., a surgical procedure including RF ablation and/or other RF function) in accordance with the operating parameters.
  • a surgical procedure e.g., a surgical procedure including RF ablation and/or other RF function
  • using the handheld RF generator may include operating the handheld RF generator in a manner that maintains various operating parameters within ranges or limits indicated by the configuration information.
  • FIG. 4 shows an example computer system 400.
  • the some or all of the components of the computer system 400 may be implemented or implement functions of the system 100, the handheld RF generator 200 (e.g., the controller 228), etc.
  • the computer system 400 may be connected (e.g., networked) to other computer systems in a local-area network (LAN), an intranet, and/or an extranet (e.g., device cart 102 network), or at certain times the Internet (e.g., when not in use in a surgical procedure).
  • the computer system 400 may be a server, a personal computer (PC), a tablet computer or any device capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that device.
  • computer shall also be taken to include any collection of computers that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methods discussed herein.
  • controller 228 of the handheld RF generator 200 When implemented by or within the controller 228 of the handheld RF generator 200, one or more components of the computer system 400 may be omitted.
  • the computer system 400 includes a processing device 402, a main memory 404 (e.g., read-only memory (ROM), flash memory, dynamic random access memory (DRAM) such as synchronous DRAM (SDRAM)), a static memory 406 (e.g., flash memory, static random access memory (SRAM)), and a data storage device 408, which communicate with each other via a bus 410.
  • main memory 404 e.g., read-only memory (ROM), flash memory, dynamic random access memory (DRAM) such as synchronous DRAM (SDRAM)
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • static memory 406 e.g., flash memory, static random access memory (SRAM)
  • SRAM static random access memory
  • Processing device 402 represents one or more general-purpose processing devices such as a microprocessor, central processing unit, or the like. More particularly, the processing device 402 may be a complex instruction set computing (CISC) microprocessor, reduced instruction set computing (RISC) microprocessor, very long instruction word (VLIW) microprocessor, or a processor implementing other instruction sets or processors implementing a combination of instruction sets.
  • the processing device 402 may also be one or more special-purpose processing devices such as an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a digital signal processor (DSP), network processor, or the like.
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • DSP digital signal processor
  • the processing device 402 is configured to execute instructions for performing any of the operations and steps discussed herein. Once programmed with specific instructions, the processing device 402, and thus the entire computer system 400, becomes a special-purpose device, such as the controller 228.
  • the computer system 400 may further include a network interface device 412 for communicating with any suitable network (e.g., the device cart 102 network).
  • the computer system 400 also may include a video display 414 (e.g., display device 414), one or more input devices 416 (e.g., buttons, a microphone, a keyboard, and/or a mouse), and one or more speakers 418.
  • the video display 414 and the input device(s) 416 may be combined into a single component or device (e.g., an LCD touch screen).
  • the data storage device 408 may include a computer-readable storage medium 420 on which the instructions 422 (e.g., implementing any methods and any functions performed by any device and/or component depicted described herein) embodying any one or more of the methodologies or functions described herein is stored.
  • the instructions 422 may also reside, completely or at least partially, within the main memory 404 and/or within the processing device 402 during execution thereof by the computer system 400. As such, the main memory 404 and the processing device 402 also constitute computer-readable media. In certain cases, the instructions 422 may further be transmitted or received over a network via the network interface device 412.
  • computer-readable storage medium 420 is shown in the illustrative examples to be a single medium, the term “computer-readable storage medium” should be taken to include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) that store the one or more sets of instructions.
  • the term “computer-readable storage medium” shall also be taken to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by the machine and that cause the machine to perform any one or more of the methodologies of the present disclosure.
  • the term “computer- readable storage medium” shall accordingly be taken to include, but not be limited to, solid-state memories, optical media, and magnetic media.
  • the computer system 400 or one or more computing or processing devices may be configured to perform functions of the handheld RF generator 200 described herein, including functions related to communication and/or control of any of the handheld RF generator 200, and/or functions of the methods described herein.
  • a controller, module, or circuitry may be defined as electronics having various integrated circuits, logic, memory, and/or software that receive instructions, issue instructions, control operation, enable cleaning operations, enable endpoint measurements, and the like.
  • the integrated circuits may include chips in the form of firmware that store program instructions, digital signal processors (DSPs), chips defined as application specific integrated circuits (ASICs), and/or one or more microprocessors, or microcontrollers that execute program instructions (e.g., software).
  • Program instructions may be instructions communicated to the controller in the form of various individual settings (or program files), defining operational parameters for carrying out a particular process.

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  • Health & Medical Sciences (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
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  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Surgical Instruments (AREA)

Abstract

Un générateur radiofréquence (RF) portatif conçu pour effectuer une intervention chirurgicale comprend un corps comprenant un boîtier, une extrémité proximale, une extrémité distale et un port de sortie situé à l'extrémité distale du corps, un circuit RF enfermé à l'intérieur du boîtier du corps et conçu pour générer et délivrer un signal RF par l'intermédiaire du port de sortie, et un circuit de commande enfermé à l'intérieur du boîtier du corps, le circuit de commande étant conçu pour commander de façon sélective la génération du signal RF à l'aide du circuit RF, obtenir, à partir de la pointe d'une baguette couplée au port de sortie, des informations de configuration indiquant des paramètres de fonctionnement pour le générateur RF pendant l'intervention chirurgicale, la pointe de la baguette étant conçue pour recevoir, par l'intermédiaire du port de sortie, le signal RF généré par le circuit RF, et amener le circuit RF à générer le signal RF conformément aux paramètres de fonctionnement indiqués par les informations de configuration.
PCT/US2024/051915 2023-11-08 2024-10-18 Générateur rf portatif avec pointe distale, commande manuelle et au pied Pending WO2025101343A1 (fr)

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US20170202605A1 (en) * 2016-01-15 2017-07-20 Ethicon Endo-Surgery, Llc Modular battery powered handheld surgical instrument and methods therefor
US20210369326A1 (en) * 2017-05-16 2021-12-02 Smith & Nephew, Inc. Electrosurgical systems and methods
US20220151683A1 (en) * 2019-04-17 2022-05-19 Covidien Lp Electrosurgical blade electrode adding precision dissection performance and tactile feedback

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150257817A1 (en) * 2010-11-08 2015-09-17 Bovie Medical Corporation System and method for identifying and controlling an electrosurgical apparatus
US20120310229A1 (en) * 2011-05-31 2012-12-06 Tyco Healthcare Group Lp Surgical Device with DC Power Connection
US20150209099A1 (en) * 2012-06-12 2015-07-30 Gyrus Medical Limited Electrosurgical instrument and system
US20140246475A1 (en) * 2013-03-01 2014-09-04 Ethicon Endo-Surgery, Inc. Control methods for surgical instruments with removable implement portions
WO2014210136A1 (fr) * 2013-06-25 2014-12-31 Spears Michael Système, procédé et appareil pour effectuer une intervention électrochirurgicale en utilisant une énergie rayonnante
US20170105782A1 (en) * 2015-10-16 2017-04-20 Ethicon Endo-Surgery, Llc Control and electrical connections for electrode endocutter device
US20170202605A1 (en) * 2016-01-15 2017-07-20 Ethicon Endo-Surgery, Llc Modular battery powered handheld surgical instrument and methods therefor
US20210369326A1 (en) * 2017-05-16 2021-12-02 Smith & Nephew, Inc. Electrosurgical systems and methods
US20220151683A1 (en) * 2019-04-17 2022-05-19 Covidien Lp Electrosurgical blade electrode adding precision dissection performance and tactile feedback

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