WO2015158070A1 - Operating sheath and operating system for intervertebral foramen endoscope, and usage method thereof - Google Patents

Abstract

An operating sheath and operating system for an intervertebral foramen endoscope, and usage method thereof; the operating sheath for the intervertebral foramen endoscope is used to fix the intervertebral foramen endoscope, and comprises an expansion tube (1) having two open ends, and a connecting sheath (2) detachably connected to one end of the expansion tube (1); the connecting sheath (2) is provided with a through hole passing through the two ends thereof and a water inlet channel communicating with the through hole; the water inlet channel extends outward to form a water inlet connector (4); and the water inlet connector (4) is used to connect to a water tube to introduce water into the expansion tube (1) to rinse the intervertebral foramen endoscope inserted in the expansion tube (1). The operating sheath for the intervertebral foramen endoscope enables the connecting sheath (2) to be detachable from and rotatable relative to the expansion tube (1), and the connecting sheath (2) is provided with the water inlet connector (4) for connecting to the water tube and a switch valve (12) disposed on the water inlet connector (4), such that water flow can be introduced in real time into the expansion tube (1) to irrigate the intervertebral foramen endoscope, thus being fast and convenient, saving valuable time during an operation; in addition, the expansion tube (1) is also able to push an implant out via the intervertebral foramen endoscope.

Description

Operational sheath for intervertebral foramen, operating system for intervertebral foramen and method of use thereof

Cross-reference to related applications

The present application claims priority to Chinese Utility Model Application No. 20142018365, filed on Apr. 15, 2014, which is hereby incorporated by reference.

Technical field

The present invention relates to an operating sheath, and more particularly to an operating sheath for an intervertebral foramina. Furthermore, the present invention relates to an operating system for intervertebral foramen and a method of implanting an implant with an operating sheath for intervertebral foramen.

During spinal surgery (eg, posterior lumbar interbody fusion (PLIF), transforaminal lumbar interbody fusion (TLIF)) In many cases, it is necessary to drill holes in the spine, and then the intervertebral foramen is inserted into the intervertebral foramen which are kept open by the dilatation tube whose both ends are open ends, and the operation is directly under the endoscope, so that each Related anatomical structures such as intervertebral disc, annulus fibrosus, posterior longitudinal ligament, dural sac, nerve root, etc. are clearly presented on the screen, providing doctors with clear pathological conditions for safe and thorough surgical treatment. However, the intervertebral foramen located in the spinal canal or the dilatation tube are often contaminated to make the mirror surface unclear. At this time, it needs to be cleaned up in time to continue to use. In the prior art, the mirror is flushed by introducing a small water pipe and using a water flow. It is clean, but the water pipes are mostly independent. When using it, the doctor needs to vacate one hand to operate. It is extremely inconvenient, and it affects the operation process, prolongs the operation time and aggravates the suffering of the patients.

In addition, when doing spinal surgery, it is often necessary to implant the implant into the spine with an implant fixture, and the implantation process may be performed with the aid of X-ray for more precise positioning, but X-ray Radiation may have a certain adverse effect on the health of the patient. If X-rays are not used for visualization during implantation, the implant at the front or distal end of the implant fixture may be loosened or unable to be positioned at the desired location by inadvertently colliding with the dilation tube.

Summary of the invention

In view of the above deficiencies of the prior art, it is an object of the present invention to provide an operation sheath for an intervertebral foramen, which is quick-disassemblable, and by using the operation sheath, the convenience of the cleaning operation is greatly improved. improve. The surgical sheath of the present invention can also be used for vertebral foraplasty under intervertebral foramen. Furthermore, it is an object of the present invention to provide an operating system for an intervertebral foramen and a method of implanting an implant which enable each step of the spinal surgery to be performed clearly and continuously without the need for harmful radiation.

According to an aspect of the invention, there is provided an operation sheath for an intervertebral foramen for fixing an intervertebral foramen, wherein the operation sheath for the intervertebral foramen includes an opening at both ends a dilating tube at the end and a connecting sheath detachably connected to one end of the expanding tube, the connecting sheath is provided with a through hole penetrating the two ends thereof and a water inlet passage communicating with the through hole, the water inlet passage extending outward to form a water inlet joint, the water inlet The joint is for connection to a water tube to introduce water into the dilation tube to flush the intervertebral foramen inserted into the dilation tube. Preferably, the axis of the water inlet passage and the axis of the through hole are perpendicular to each other.

According to another aspect of the present invention, the connecting end of the connecting sheath and the expanding tube is provided with a card wheel, and the connecting wheel is provided with a connecting handle extending outside the connecting sheath to push the card wheel to rotate to be close to press or away to loosen Expansion tube. An opening slot for accommodating the card wheel is defined in the outer wall of the connecting sheath. The opening slot communicates with the through hole and penetrates to one end of the connecting sheath and the expansion tube. The card wheel is installed in the opening slot through the rotating shaft. Preferably, the rotating shaft is disposed at the vicinity of the connecting handle of the card wheel.

According to another aspect of the present invention, one end of the expansion tube is provided with a connection head, and the expansion tube is connected to the through hole of the connection sheath through the connection head, the connection head has a hollow column shape, and a ring is arranged on the outer side of the connection head to cooperate with the card wheel When the card wheel rotates and presses the connector, it fits into the clamped round bottom groove, and the rotation axis of the card wheel is perpendicular to the axis of the expansion tube.

According to another aspect of the present invention, an operation sheath for an intervertebral foramen further includes a connecting tube member disposed between the dilation tube and the connecting sheath, the connecting tube member including a first connecting portion at the proximal end and a second connecting portion at the distal end The first connecting portion is connected to the through hole, and the second connecting portion is connected to the expanding tube. The first connecting portion has a hollow column shape, and a round bottom groove corresponding to the card wheel is arranged on the ring, and the axis of the card wheel is connected with the first connection. The axis of the part is perpendicular.

According to another aspect of the invention, the second connecting portion of the connecting pipe member is provided with an external thread, and one end of the expanding pipe connected to the connecting pipe member is provided with an internal thread that cooperates with the external thread. Preferably, the outer side of the end of the expansion tube connected to the connecting tube is provided with a round bottom groove which is engaged with the card wheel to be engaged with the card wheel when the card wheel is rotated and pressed, and the rotation axis of the card wheel is The axis of the expansion tube is perpendicular.

According to another aspect of the invention, the water inlet joint is provided with a switching valve for opening the closed water inlet joint.

According to another aspect of the invention, the end of the connecting sheath away from the dilating tube is provided with a cap for fixing the intervertebral foramen, and the cap is provided with a perforation communicating with the through hole in the connecting sheath, the cap being an elastic body.

According to another aspect of the invention, the dilation tube is provided with a scale line that is remote from the end of the attachment sheath The edge of the end face is wavy.

The present invention also provides an operating system for an intervertebral foramen, the operating system comprising: the above-mentioned operating sheath for the intervertebral foramen; and the intervertebral foramen inserted in the dilatation tube.

According to another aspect of the invention, the central axis of the through hole may coincide or be in line with the central axis of the dilation tube. Additionally, the central axis of the intervertebral mirror may coincide or be in line with the central axis of the dilation tube.

In accordance with another aspect of the invention, the operating system further includes an implant retainer having an outer diameter of the implant retaining rod that is smaller than an inner diameter of the working channel of the intervertebral mirror so as to be configured to pass through The working channel of the intervertebral foramen.

According to another aspect of the invention, the implant retaining rod of the implant retainer maintains the central axis of the rod and the dilation tube when the implant retaining rod of the implant fixture is inserted into the working channel of the intervertebral foroscope The central axes coincide or are in line.

In accordance with another aspect of the invention, the distal end of the implant fixture is configured to connect implants having different diameters, the diameter of the dilation tube being selected to match the diameter of the implant.

According to another aspect of the invention, the dilation tube has a diameter of 6, 7, 8, 9, 10, 11, 12 or 13 mm.

According to another aspect of the invention, the operating system can be used for vertebral foraplasty.

The present invention also provides a method of using an operating system for an intervertebral foramen, the method comprising: inserting a intervertebral foramen into a through hole of a connecting sheath of an operation sheath for an intervertebral foramen; implanting the implant holder Inserting the rod into the working channel of the intervertebral foramen; attaching the implant to the implant holder such that the implant is positioned before the imaging lens of the intervertebral foramen; inserting the intervertebral foramen into the dilation tube; The dilation tube is connected to the connection sheath; the implant is used to push the implant to the surgical site.

In accordance with another aspect of the invention, after inserting the intervertebral foramen into the through-hole of the connecting sheath of the surgical sheath for the intervertebral foramen, the method further includes inserting the intervertebral foramen into the connecting tube connected to the connecting sheath.

In accordance with another aspect of the invention, in the step of pushing the implant to the surgical site, the surgical site is illuminated through the intervertebral mirror source illumination aperture and the push step is viewed through the intervertebral aperture optical aperture. Additionally, the method includes rotating the expansion tube by rotating the connecting sheath.

The beneficial effect of the operating sheath for the intervertebral foroscope of the present invention is that the connecting sheath and the expanding tube are detachably and rotatably connected due to the detachable connecting sheath connected to the expanding tube, and the connecting sheath is further provided for connecting. The water inlet joint of the water pipe and the on-off valve provided thereon enable the water flow to be introduced into the expansion tube in real time to flush the intervertebral foramen, which is convenient and quick, and saves precious time for the operation. In addition, the operating system and method of use of the intervertebral foroscope of the present invention can clearly and continuously perform and examine each step of the spinal surgery without the need for harmful radiation, thereby further enhancing the safety of the system.

DRAWINGS

Fig. 1 is a schematic view showing the structure of an operation sheath for an intervertebral foramen according to the present invention.

Fig. 2 is a schematic view showing the structure of the connecting sheath of the operating sheath for intervertebral foramen of the present invention.

3 is a schematic structural view of another angle of FIG. 2.

Fig. 4 is a schematic view showing the structure of a dilatation tube for an operation sheath for intervertebral foramen according to the present invention.

Fig. 5 is a view showing the structure of a connecting tube member for an operation sheath for a foramen according to the present invention.

Figure 6 is a schematic illustration of an implant fixture for use with an operating system for intervertebral foramen in accordance with the present invention.

Figure 7 is a schematic illustration of an operating sheath for an intervertebral foramen and an implant fixture in accordance with the present invention.

Figure 8 is a schematic illustration of an intervertebral foramen of an operating system for intervertebral foramen according to the present invention.

Figure 9 is a schematic illustration of the use of an intervertebral foramen operating system, a conical bore mirror, and an implant fixture in accordance with the present invention.

Figure 10 is a schematic illustration of a ring saw and a ring saw handle that can be used in conjunction with the intervertebral foramen operating sheath of the present invention.

detailed description

The invention will be further described in the following detailed description of the embodiments of the invention, A person skilled in the art can make similar promotion and deduction according to the actual application without departing from the connotation of the present invention. Therefore, the scope of the present invention should not be limited by the content of the specific embodiment.

As shown in FIG. 1, an operation sheath for an intervertebral foramen according to an embodiment of the present invention is used to fix an intervertebral forascope 30 (as shown in FIG. 8), and the operation sheath for the intervertebral foramen includes an open end at both ends. The expansion tube 1 and the connection sheath 2 detachably connected to one end of the expansion tube 1 are provided. The connecting sheath 2 is provided with a through hole 7 extending through both ends thereof and a water inlet passage communicating with the through hole 7. The water inlet passage extends horizontally outward to form a connection with the water pipe to introduce water into the expansion tube 1 to flush the intervertebral foramen mirror 30 inlet fittings 4. Preferably, the water inlet passage is substantially perpendicular to the through hole 7.

As shown in FIGS. 1 and 4, the dilatation tube 1 has a cylindrical shape, and one end connected to the connection sheath 2 is provided with a connector 3, and the end edge of the other end is wavy (see the rightmost end of the dilation tube in FIG. 4). In order to avoid damage to the skin tissue, the dilation tube 1 may also be provided with a scale (not shown). The connecting head 3 has a short cylindrical shape and an inner diameter larger than the inner diameter of the expanding tube 1. The connecting head 3 can be integrally formed with the expanding tube 1, or A two-piece construction that is welded to each other. As shown in FIGS. 2 and 3, the connecting sheath 2 is divided into two parts, the first portion 5 of which is cylindrical, and the second portion 6 is connected to the right side of the first portion 5 (the right side is the right side in FIG. 2). For a rectangular parallelepiped shape, the through hole 7 extends through the first portion 5 and the second portion 6, wherein a portion of the through hole 7 located in the second portion 6 is for accommodating the connector 3, and the second portion 6 is smooth with the first portion 5. In the transitional connection, the connection sheath 2 of this type is more convenient for the operator to hold and facilitate the application of force. Further, the first portion of the vertical portion 7 of the second portion 6 is provided with an opening groove 8 in the axial direction, and the opening groove 8 is communicated with the through hole 7. The opening groove 8 is provided with a chuck 9 which is rotated. The expansion tube 1 can be detachably fixed to the connection sheath 2 by being able to be brought closer to or away from the connector 3 to clamp or loosen the expansion tube 1. In order to facilitate the operation of the card wheel 9, a connecting handle 10 extending outside the connecting sheath 2 is provided on the card wheel 9. Further, the opening groove 8 is opened to the second portion 6 to be provided with one end of the through hole 7 to facilitate the mounting of the card wheel 9.

As shown in FIG. 2 and FIG. 3, in the embodiment, the connecting head 3 is provided with a circular bottom groove 11. The pulley 9 has a cylindrical shape and is disposed in the opening groove 8 through a rotating shaft. The axial direction of the engaging wheel 9 is perpendicular to the axial direction of the through hole 7, and the rotating shaft is not mounted on the axis of the card wheel 9 to make the card wheel 9, under the pushing of the connecting handle 10, can be rotated out of the connecting sheath 2, that is, the one end of the opening groove 8 is protruded, and in the process of continuing to rotate, it can extend into a part of the through hole 7 to achieve loosening or The purpose of compacting the expansion tube 1 (connecting head 3). The arc of the round bottom groove 11 is equal to the arc of the card wheel 9, so as to gradually engage with the round bottom groove 11 when the card wheel 9 rotates, the frictional force is used to drive the connector 3 to move to the first portion 5 of the connecting sheath 2 until After fully fitting, it is clamped to fix the entire expansion tube 1. In order to reduce the processing area, the groove 9 can also be provided with a groove, and the two groove walls can be matched with the round bottom groove 11 of the connector to press or loosen the connector 3.

Specifically, in FIG. 2 of the embodiment, when the connecting handle 10 is moved toward the expanding tube 1, the card wheel 9 is rotated by the connecting handle 10, and away from the connecting head 3, the card wheel 9 releases the expanding tube 1, At this time, the connecting sheath 2 is in a non-operating state, and the expanding tube 1 can be removed or installed; when the connecting handle 10 is pushed to move toward the first portion 5 of the connecting sheath 2, the chuck 9 is gradually rotated toward the connecting head 3 Until the connecting handle 10 abuts the connecting sheath 2, the card wheel 9 is in contact with the connecting head 3, and the locking wheel 9 is in close contact with the round bottom groove 11 on the connecting head 3, and the expanding tube 1 is fixed, and the connecting sheath 2 is fixed. It is in a locked state, that is, working state.

In order to better fix the expansion tube 1, the card wheel 9 can be designed to be elliptical or a clip (not shown) fitted to the connecting handle 10 can be provided on the connecting sheath 2 to avoid the connection sheath 2 The unstable locking state causes the connecting handle 10 to loosen.

The end surface of the dilation tube 1 away from the end of the connecting sheath 2 is a duckbill shape, that is, a substantially inclined surface. In the operation, when the surgical forceps remove the nucleus pulposus tissue, the running nerve root may move to the ventral side under the tension and enter the field of view of the intervertebral foramen 30, affecting the removal of the remaining nucleus pulposus tissue. Pressing the connection handle 10, the expansion tube is rotated by the connection sheath due to the pressure, so that the expansion tube can be rotated by 0 to 180 degrees by rotating the connection sheath to block the running nerve to the back side of the duckbill end surface of the expansion tube, The aspect protects the nerve and, on the other hand, exposes the remaining nucleus pulposus tissue to the field of view of the intervertebral mirror 30 to extract the remaining tissue.

Preferably, the water inlet passage is disposed in the first portion 5 of the connecting sheath 2, one end of which communicates with the through hole 7, and the other end communicates with the outside and extends outward to form the water inlet joint 4 to connect the water pipe, in order to control the inflow and outflow of the water flow, In the embodiment, a switch valve 12 is further provided on the water inlet joint 4. The water inlet joint 4 and the chuck 9 are disposed on different sides of the connecting sheath 2 to prevent mutual influence and hinder operation.

The end of the first portion 5 of the connecting sheath 2 remote from the second portion 6 is provided with a cap 13 made of, for example, rubber, which is provided with a perforation communicating with the through hole 7 for insertion into the intervertebral space in the connecting sheath 2 The hole mirror 30 is fixed to its handle to improve the operation performance.

As shown in Fig. 5, the through hole 7 of the connecting sheath 2 is variable in size to fit the dilating tube 1 of different calibers. It is also possible to connect the expansion tube 1 of at least two calibers by providing a connecting tube member 14, i.e., a conversion joint. Specifically, the hollow connecting tube member 14 has a first connecting portion 15 at a proximal end and a second connecting portion 16 at a distal end, the first connecting portion 15 having a first through hole penetratingly, and the second connecting portion 16 having a through hole a second perforation, the first perforation being in communication with the second perforation. The first connecting portion 15 has the same structure as the above-described connecting head 3, that is, has a short cylindrical shape and is provided with a circular bottom groove. The first connecting portion 15 of the connecting tube 14 is mated with the through hole 7 of the connecting sheath 2. The second connecting portion 16 of the connecting tube 14 is screwed to the expanding tube 1, that is, an internal thread is provided in the connecting head 3 of the expanding tube 1, and an external thread is provided at the second connecting portion 16 of the connecting tube 14. Of course, the expansion tube 1 may not be provided with the connector 3, that is, the expansion tube 1 is only a long tube, and an end portion of the expansion tube 1 is provided with an internal thread. The diameter of the second through hole of the connecting pipe member 14 is larger than the diameter of the first through hole, and may of course be smaller than the diameter of the first through hole.

In cervical and lumbar spine surgery, implants are often added between the two vertebrae to avoid contact between the two vertebrae. The operation of the intervertebral foramen of the present invention can help the doctor to easily perform the operation, as follows.

First, the dilatation tube 1 adapted to the implant is selected, the intervertebral foramina 30 is inserted into the dilation tube 1, and the expansion tube 1 is connected to the connecting tube member 14, and the first connecting portion 15 of the connecting tube member 14 is connected. Insert The through hole 7 of the connecting sheath 2 is fixed inside, and then the implant is inserted into the free end of the dilating tube 1. At this time, the dilating tube 1 can be moved between the two vertebrae, and the implant is implanted through the intervertebral foramina 30. Push it out. It should be noted that the connecting pipe member 14 is optional, that is, the connecting pipe member 3 of the expansion pipe 1 may be directly inserted into the through hole 7 of the connecting sheath 2 without using the connecting pipe member 14. On the other hand, the water inlet joint 4 of the connecting sheath 2 is connected to a clean water source through a water pipe. During the cervical and lumbar spine surgery, the mirror valve 12 of the water inlet connector 4 can be opened to clean the mirror surface of the intervertebral mirror 30 when needed.

During the above operation, the central axis of the through hole of the intervertebral foramina 30 inserted into the operation sheath of the intervertebral foramen coincides with or is in line with the central axis of the dilation tube, and when the intervertebral foramina 30 is inserted into the intervertebral foramen After operation of the sheath, the central axis of the intervertebral mirror 30 preferably coincides or is in line with the central axis of the dilation tube 1.

Further, in the case where the dilatation tube 1 remains in the body, the implant holder 20 as shown in Fig. 6 can also be used to manipulate and position the implant in the future. The implant holder 20 is provided with an operating portion 21 and an implant holding rod 22 connected to the operating portion 21, the head of the holding rod 22 having an elastic means for releasably connecting the implant.

As shown in Figure 7, the implant fixture 20 can be used in conjunction with an operating sheath having an expansion tube 1 and a connecting sheath 2 intervertebral foramen. First, the connecting sheath is connected to the preselected connecting tube 14 of the desired diameter, and then the intervertebral foramina 30 is inserted into the hole therein, and then the implant holding rod 22 of the implant holder 20 is inserted into the vertebra. The working channel 31 of the aperture mirror 30 (shown in Figures 8 and 9) secures the implant to the distal end of the implant holder 20. At this time, the implant is located before the imaging lens of the intervertebral mirror 30. The intervertebral foramina 30, together with the implant holder 20 therein, is then inserted into the dilation tube 1 remaining in the body and the dilation tube 1 is attached to the connection tube. In this way, the implant can be advanced under the microscope and eventually pushed to the surgical site. Similarly, the above-mentioned connecting pipe member 14 can be selectively used, that is, the connecting pipe member 14 of the expansion pipe 1 can be directly inserted into the through hole 7 of the connecting sheath 2 without using the connecting pipe member 14. On the other hand, the water inlet joint 4 of the connecting sheath 2 is connected to a clean water source through a water pipe. During the cervical and lumbar spine surgery, the mirror valve 12 of the water inlet connector 4 can be opened to clean the mirror surface of the intervertebral mirror 30 when needed.

During the above operation, when the implant retaining rod 22 of the implant fixture 20 is inserted into the working channel of the intervertebral foramina 30, the implant retaining rod 22 of the implant retainer 20 The central axis coincides or is in line with the central axis of the dilation tube.

There are many options for the diameter of the implant, such as 6, 7, 8, 9, 10, 11, 12, 13 mm, and the inner diameter of the dilation tube 1 should be selected corresponding to the diameter of the implant, such as 6, 7, 8 9,10,11, 12, 13mm, but for implants of different calibers, the diameter of the operating sheath for intervertebral foramen can be constant, for example 7-9mm, and the diameter of the intervertebral foramen can also be constant, for example 7- 9mm. Thus, the constant diameter of the intervertebral foramen and the intervertebral foramen can ensure the stability of the intervertebral foramen and the operating sheath, and ensure that the intervertebral foramen is vertical.

The intervertebral foramen operating sheath of the present invention can also be used for vertebral foramen. Figure 10 shows a ring saw 23 and a ring saw handle 24 that can be used in conjunction with the intervertebral mirror operating sheath of the present invention. According to the position of the intervertebral disc, the degree of stenosis of the intervertebral foramen and the lateral recess, the 6, 3, 8, 9, 10, 11, 12 or 13 mm duckbill dilatation tube 1 is placed in the intervertebral foramen, and the connecting sheath is passed through the connecting sheath. 2 and the connecting tube 14 is placed into the intervertebral foramen. Under the microscope, the upper articular process of the lower vertebral body and the fat blood vessels in the intervertebral foramen can be seen, and one end of the ring saw 23 corresponding to 3.5-12.5 mm is passed through the intervertebral foramen. The working channel 31 of the mirror 30 is placed into the facet joint portion, and the ring saw handle 24 is mounted on the other end of the ring saw 23. The ring saw 23 is rotated by rotating the ring saw handle 24, and the sawtooth saw placed on one end of the facet joint portion by the ring saw 23 removes the bone of the articular process on the lower vertebral body and is taken out, so that the lower vertebra can be seen under the microscope. Tissues such as superior articular processes and fat vessels in the intervertebral foramen facilitate tissue removal and placement of the implant (if needed). For simple lumbar disc herniation, only the protruding intervertebral disc tissue needs to be removed. There is no need to deliberately decompress the intervertebral foramen and lateral crypts. The use of a circumcision with an outer diameter of 7.5 mm (or below) can meet the surgical needs.

The present invention is disclosed in the above preferred embodiments, but is not intended to limit the invention, and any changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modifications made to the above embodiments in accordance with the technical spirit of the present invention, without departing from the technical scope of the present invention.

Claims (22)

An operation sheath for an intervertebral foramen, the operation sheath for intervertebral foramen for fixing an intervertebral foramen, characterized in that the operation sheath for the intervertebral foramen includes a dilation tube having open ends at both ends and a connecting sheath detachably connected to one end of the expansion tube, Wherein, the connecting sheath is provided with a through hole penetrating through the two ends thereof and a water inlet passage communicating with the through hole, the water inlet passage extending outward to form an inlet joint, and the inlet joint is for connecting with the water pipe Water is introduced into the dilation tube to flush the intervertebral foramen inserted into the dilation tube. The operating sheath for intervertebral foramen according to claim 1, wherein a pin wheel is provided on one end of the connecting sheath connected to the dilating tube, and the connecting wheel is provided on the card wheel The outer connecting handle pushes the card wheel to rotate close to press or away to release the expansion tube. The operation sheath for intervertebral foramen according to claim 2, wherein an outer groove of the connecting sheath is provided with an opening groove for accommodating the card wheel, and the opening groove is connected to the through hole and The card is connected to one end of the connecting sheath and the expansion tube, and the card wheel is installed in the open slot through a rotating shaft. The operation sheath for intervertebral foramen according to any one of claims 1 to 3, wherein one end of the expansion tube is provided with a connector, and the expansion tube is connected to the connection through the connector a through hole of the sheath, the connecting head has a hollow column shape, and a circular bottom groove is arranged on an outer side of the connecting head, and the connecting head cooperates with the card wheel and the card wheel rotates to press the connecting head The card wheel is engaged with the round bottom groove, and the rotation axis of the card wheel is perpendicular to the axis of the expansion tube. The operation sheath for intervertebral foramen according to claim 2 or 3, wherein the operation sheath for intervertebral foramen further comprises a connecting tube member disposed between the expansion tube and the connecting sheath, The connecting tube member includes a first connecting portion at the proximal end and a second connecting portion at the distal end, the first connecting portion is connected to the through hole, the second connecting portion and the expanding tube The first connecting portion has a hollow column shape, and is provided with a circular bottom groove engaged with the card wheel, and an axis of the card wheel is perpendicular to an axis of the first connecting portion. The operation sheath for intervertebral foramen according to claim 5, wherein the second connecting portion of the connecting tube member is provided with an external thread, and one end of the expanding tube connected to the connecting tube member is provided with Internal thread with external thread. The operation sheath for intervertebral foramen according to claim 6, wherein a circular bottom groove is provided on an outer side of the one end of the expansion tube connected to the connecting tube member, and the expansion tube and the When the connecting sheath is matched, the card wheel is engaged with the round bottom groove, and the rotation axis of the card wheel is The axis of the expansion tube is perpendicular. The operating sheath for an intervertebral foroscope according to claim 1, wherein the water inlet joint is provided with a switching valve for opening and closing the water inlet joint. The operating sheath for intervertebral foramen according to claim 1, wherein a cap of the connecting sheath away from the dilating tube is provided with a cap for fixing the intervertebral foramina, and the cap is provided There is a perforation in communication with the through hole in the connecting sheath, the cap being an elastomer. The operation sheath for intervertebral foramen according to claim 1, wherein the dilation tube is provided with a scale line, and an end surface of the extension tube away from one end of the connection sheath is wavy. [Corrected in accordance with Rule 91 13.10.2014]
The operation sheath for intervertebral foramen according to claim 1, wherein an end surface of the expansion tube away from one end of the connection sheath is a slope. [Corrected in accordance with Rule 91 13.10.2014]
The operating sheath for an intervertebral foroscope according to claim 1, wherein an axis of the water inlet passage and an axis of the through hole are perpendicular to each other. [Corrected in accordance with Rule 91 13.10.2014]
An operating system for intervertebral foramen, the operating system comprising: An operation sheath for intervertebral foramen according to any one of claims 1 to 11; An intervertebral foramen inserted into the dilatation tube of the operation sheath for the intervertebral foramen. [Corrected in accordance with Rule 91 13.10.2014]
The operating system for an intervertebral foroscope according to claim 12, wherein a central axis of said through hole coincides with or is in line with a central axis of said dilation tube. [Corrected in accordance with Rule 91 13.10.2014]
The operating system for an intervertebral foroscope according to claim 12, wherein the central axis of the intervertebral formascope coincides with or is in line with the central axis of the dilation tube. [Corrected in accordance with Rule 91 13.10.2014]
The operating system for an intervertebral foroscope according to claim 12, wherein said operating system further comprises an implant retainer, said implant retainer having an outer diameter of said implant retaining rod that is smaller than said The inner diameter of the working channel of the intervertebral foramen is configured to pass through the working channel of the intervertebral foramina. [Corrected in accordance with Rule 91 13.10.2014]
The operating system for an intervertebral foroscope according to claim 15, wherein when the implant retaining rod of the implant holder is inserted into the working channel of the intervertebral foroscope, The central axis of the implant retaining rod of the implant fixture coincides or is in line with the central axis of the dilation tube. [Corrected in accordance with Rule 91 13.10.2014]
The intervertebral foramen operating system according to claim 15, wherein the distal end of the implant holder is configured to connect implants having different diameters, the diameter of the dilation tube being selected to be The diameters of the implants match. [Corrected in accordance with Rule 91 13.10.2014]
A method of using an operating system for an intervertebral foroscope according to claim 15, the method comprising: Inserting an intervertebral foramen into the through hole of the connecting sheath of the operation sheath for the intervertebral foramen; Inserting an implant retaining rod of the implant holder into the working channel of the inserted intervertebral foramina; Attaching the implant to the implant fixture such that the implant is positioned before the imaging lens of the intervertebral foramina; Inserting the intervertebral foramen into the dilatation tube; Connecting a dilation tube to the connection sheath; The implant is pushed to the surgical site with the implant fixture. [Corrected in accordance with Rule 91 13.10.2014]
The method of claim 18, wherein after inserting the intervertebral foramen into the through hole of the connecting sheath of the intervertebral foramen, the method further comprises inserting the intervertebral foramen The connecting pipe connected to the connecting sheath. [Corrected in accordance with Rule 91 13.10.2014]
The method of claim 18, wherein in said step of pushing said implant to a surgical site, the surgical site is illuminated by an intervertebral mirror illumination aperture and through an intervertebral aperture optical aperture Observe the push step. [Corrected in accordance with Rule 91 13.10.2014]
The method of claim 18, further comprising rotating the expansion tube by rotating the connecting sheath.

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