阅读说明：本技术 一种关节镜辅助套管 (Arthroscope auxiliary sleeve ) 是由 翁伟 钟建明 徐毅 闵继康 杨红航 于 2021-07-05 设计创作，主要内容包括：本发明提供了一种关节镜辅助套管,属于医疗器材技术领域。它解决了现有关节镜辅助套管容易擦伤等问题。本关节镜辅助套管包括滑座和滑套,滑座开设有供滑套穿过的安装孔,滑座底部设置有保护膜片,保护膜片一端连接滑套底部,保护膜片用于将防止滑套损伤局部解剖结构,滑套内部开设有工作通道,滑套顶端一侧设置有导液管,导液管连接工作通道,导液管设置有开关阀,开关阀用于驱动导液管开启或封闭,开关阀包括驱动装置和阀体,阀体内设置有与导液管垂直连通的开关通道,驱动装置底部连接有闸板,驱动装置用于驱动闸板在开关通道内上升或下降。本发明具有减少擦伤等优点。(The invention provides an arthroscope auxiliary sleeve, and belongs to the technical field of medical equipment. It has solved the easy scheduling problem of scotch of current arthroscope auxiliary cannula. This arthroscope auxiliary sleeve pipe includes slide and sliding sleeve, the mounting hole that supplies the sliding sleeve to pass is seted up to the slide, the slide bottom is provided with the protection diaphragm, protection diaphragm one end connection sliding sleeve bottom, the protection diaphragm is used for preventing the sliding sleeve from damaging local anatomy structure, the inside working channel that has seted up of sliding sleeve, sliding sleeve top one side is provided with the catheter, catheter connection working channel, the catheter is provided with the ooff valve, the ooff valve is used for driving the catheter and opens or seal, the ooff valve includes drive arrangement and valve body, be provided with the switch channel with the perpendicular intercommunication of catheter in the valve body, the drive arrangement bottom is connected with the flashboard, drive arrangement is used for driving the flashboard and rises or descends in switch channel. The invention has the advantages of reducing scratches and the like.)

1. The arthroscopy auxiliary casing is characterized by comprising a sliding seat (1) and a sliding sleeve (2), wherein a mounting hole (3) for the sliding sleeve (2) to pass through is formed in the sliding seat (1), a protective membrane (4) is arranged at the bottom of the sliding seat (1), one end of the protective membrane (4) is connected with the bottom of the sliding sleeve (2), the protective membrane (4) is used for preventing the sliding sleeve (2) from damaging local anatomical structures, a working channel (5) is formed in the sliding sleeve (2), a liquid guide pipe (6) is arranged on one side of the top end of the sliding sleeve (2), the liquid guide pipe (6) is connected with the working channel (5), a switch valve (7) is arranged on the liquid guide pipe (6), the switch valve (7) is used for driving the liquid guide pipe (6) to be opened or closed, the switch valve (7) comprises a driving device (16) and a valve body (17), a switch channel (18) which is vertically communicated with the liquid guide pipe (6) is arranged in the valve body (17), the bottom of the driving device (16) is connected with the flashboard (19), the driving device (16) comprises a driving handle (26) and a connecting piece (27), one end of the connecting piece (27) is connected with the driving handle (26), the other end of the connecting piece (27) is connected with the flashboard (19), and the driving handle (26) is used for driving the flashboard (19) to rise or fall.

2. An arthroscopic auxiliary cannula according to claim 1, wherein a sealing sleeve (8) is detachably arranged at the top of the sliding sleeve (2), the sealing sleeve (8) is provided with a sealing groove (24), the sealing groove (24) is provided with a first internal thread (21), a first external thread (20) is arranged at the top of the sliding sleeve (2), and the sealing sleeve (8) is in threaded connection with the sliding sleeve (2).

3. An arthroscopic auxiliary cannula according to claim 2, wherein the sealing groove (24) is provided at the bottom with a sealing ring (25), the sealing ring (25) being used for sealing.

4. An arthroscopic auxiliary cannula according to claim 1, wherein the top of the sliding seat (1) is provided with a limit groove (9), and the peripheral wall arranged below the sliding sleeve (2) is provided with a limit convex ring (10) for being clamped into the limit groove (9).

5. The arthroscopic auxiliary sleeve according to claim 4, wherein the upper side and the lower side of the limiting convex ring (10) are provided with guide edges (11), and the peripheral wall of the limiting groove (9) is provided with a fastening groove (12) matched with the guide edges (11).

6. An arthroscopic auxiliary cannula according to claim 1, characterised in that the protective membrane (4) is externally provided with a texture (13) for anti-slip.

7. An arthroscopic auxiliary cannula according to claim 1, characterised in that the top of the slide (1) is provided with a flange (14) for snapping onto the surface of the joint area.

8. An arthroscopic auxiliary cannula according to claim 7, characterised in that the flange (14) is arranged below the catheter (6).

9. An arthroscopic auxiliary cannula according to claim 1, characterised in that the mounting hole (3) is provided with a guide angle (15).

10. An arthroscopic auxiliary cannula according to claim 1, characterised in that the connecting piece (27) is provided with a second external thread (22), the valve body (17) is provided with a second internal thread (23), and the connecting piece (27) and the valve body (17) are screwed.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an arthroscope auxiliary sleeve.

Background

An arthroscope is a rod-like optical instrument with a diameter of about 5MM for observing the internal structure of a joint, and is an endoscope for diagnosing and treating joint diseases. The arthroscope is provided with a lens at the end part of a thin tube, the thin tube is inserted into the joint, and the structure in the joint is displayed on a monitor. Thus, the internal structure of the joint can be directly observed. Arthroscopes have been widely used not only for the diagnosis of diseases but also for the treatment of joint diseases.

In arthroscopic surgery, when instruments with large wounds such as a planer and a grinding drill are used, the instruments repeatedly enter and exit the channel, so that a plurality of joint capsules are easy to be crevasse, and the possibility of damaging important tissues of nerve and blood vessels is increased. Particularly, in the shoulder arthroscopy operation, because shoulder muscles are thick, the anatomical levels through which the self-body surface enters the joint cavity are more, and slight direction change can mistakenly enter other levels, so that the tool cannot be placed in the working position. Thus, it is generally necessary to create a working channel percutaneously with a cannula so that other arthroscopic surgical tools can enter the joint cavity through the channel.

The cannula serves to establish access and protection during arthroscopic surgery. Repeated tool access can exacerbate damage to the local anatomy if not protected by the cannula. In addition, the liquid poured in the operation can infiltrate into the anatomical layer through the incision, and the use of the sleeve can reduce the infiltration of the liquid and relieve the limb swelling in a certain range.

The outer wall of the existing sleeve is provided with threads, so that the sleeve can be rotated into a joint part to establish a working channel, but the use mode enables the friction between the sleeve and a local anatomical structure to be large, the local anatomical structure is easy to have a large number of scratches, and the damage of the local anatomical structure can be aggravated.

Aiming at the problems in the prior art, the arthroscope auxiliary cannula can reduce the puncture times in the operation and reduce the leakage of perfusion liquid in the operation.

Disclosure of Invention

The present invention addresses the above-identified problems in the prior art by providing an arthroscopic auxiliary cannula.

The purpose of the invention can be realized by the following technical scheme: an arthroscopic auxiliary sleeve is characterized by comprising a sliding seat and a sliding sleeve, wherein the sliding seat is provided with a mounting hole for the sliding sleeve to pass through, the bottom of the sliding seat is provided with a protective diaphragm, one end of the protective diaphragm is connected with the bottom of the sliding sleeve, the protective diaphragm is used for preventing the sliding sleeve from damaging local anatomical structures, the inside of the sliding sleeve is provided with a working channel, one side of the top end of the sliding sleeve is provided with a liquid guide pipe, the liquid guide pipe is connected with the working channel, the liquid guide pipe is provided with a switch valve used for driving the liquid guide pipe to be opened or closed, the switch valve comprises a driving device and a valve body, the valve body is internally provided with a switch channel vertically communicated with the liquid guide pipe, the bottom of the driving device is connected with a flashboard, the driving device comprises a driving handle and a connecting piece, one end of the connecting piece is connected with the driving handle, the other end of the connecting piece is connected with the flashboard, the driving handle is used for driving the shutter to ascend or descend.

The working principle of the invention is as follows: when a working channel needs to be constructed, the sliding sleeve slides to the top relative to the sliding seat, the sliding seat is plugged into the opening part of the joint, the sliding sleeve is pushed downwards along the axis direction of the sliding seat, and the protective diaphragm is attached to the inner wall of the local anatomical structure from top to bottom under the driving of the shaft sleeve; and after the operation is finished, the sliding sleeve is drawn out from the sliding seat, the protective membrane is separated from the inner wall of the local anatomical structure under the driving of the sliding sleeve, and finally the sliding seat is taken down. Because the protection of protection diaphragm, make the sliding sleeve in-process promoting and taking out, can not with local anatomical structure's inner wall direct contact, thereby prevent local anatomical structure's damage, be provided with the drive handle, it is more convenient to make the operation, when needs are with blood or inside body fluid drainage, control the drive handle, make the flashboard rise at the switch channel through the connecting piece, make the catheter circulate, when not needing the drainage, operate the drive handle, make the flashboard descend in the switch channel through the connecting piece, seal the catheter, the flashboard is the diameter circular the same with the catheter.

In the arthroscope auxiliary sleeve, the top of the sliding sleeve is detachably provided with a sealing sleeve, the sealing sleeve is provided with a sealing groove, the sealing groove is provided with a first internal thread, the top of the sliding sleeve is provided with a first external thread, and the sealing sleeve is in threaded connection with the sliding sleeve.

In the arthroscope auxiliary sleeve, the bottom of the sealing groove is provided with a sealing ring, and the sealing ring is used for sealing.

In the arthroscope auxiliary sleeve, the top of the sliding seat is provided with a limiting groove, and a limiting convex ring which is used for being clamped into the limiting groove is arranged on the peripheral wall arranged below the sliding sleeve.

In the arthroscope auxiliary sleeve, the upper side and the lower side of the limiting convex ring are both provided with guide edges, and the peripheral wall of the limiting groove is provided with a fastening groove matched with the guide edges.

In the arthroscope auxiliary sleeve, the outer part of the protective membrane is provided with anti-skid grains.

In the arthroscopic auxiliary sleeve, the top of the sliding seat is provided with a flange used for being clamped on the surface of the joint part.

In the above-described arthroscopic auxiliary sheath, the flange is provided below the catheter.

In the arthroscope auxiliary sleeve, a guide angle is arranged on the mounting hole.

In the arthroscope auxiliary sleeve, the connecting piece is provided with a second external thread, the valve body is provided with a second internal thread, and the connecting piece is in threaded connection with the valve body.

Compared with the prior art, the invention has the advantages of reducing abrasion by protecting the membrane, reducing damage to soft tissues by reducing puncture times, ensuring stable joint cavity pressure by reducing leakage of perfusion liquid and reducing bleeding.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of the present invention;

fig. 4 is an enlarged schematic view of the structure at B of the present invention.

In the figure, 1, a sliding seat; 2. a sliding sleeve; 3. mounting holes; 4. a protective membrane; 5. a working channel; 6. a catheter; 7. an on-off valve; 8. sealing sleeves; 9. a limiting groove; 10. a limit convex ring; 11. a guide edge; 12. A fastening groove; 13. lines; 14. a flange; 15. a guide angle; 16. a drive device; 17. a valve body; 18. Switching a channel; 19. a shutter plate; 20. a first external thread; 21. a first internal thread; 22. a second external thread; 23. a second internal thread; 24. sealing the groove; 25. a seal ring; 26. a drive handle; 27. a connecting member.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, an arthroscopic auxiliary cannula comprises a slide seat 1 and a slide sleeve 2, the slide seat 1 is provided with a mounting hole 3 for the slide sleeve 2 to pass through, the bottom of the slide seat 1 is provided with a protective membrane 4, one end of the protective membrane 4 is connected with the bottom of the slide sleeve 2, the protective membrane 4 is used for preventing the slide sleeve 2 from damaging local anatomical structures, the slide sleeve 2 is internally provided with a working channel 5, one side of the top end of the slide sleeve 2 is provided with a liquid guide tube 6, the liquid guide tube 6 is connected with the working channel 5, the liquid guide tube 6 is provided with a switch valve 7, the switch valve 7 is used for driving the liquid guide tube 6 to open or close, the switch valve 7 comprises a driving device 16 and a valve body 17, the valve body 17 is internally provided with a switch channel 18 vertically communicated with the liquid guide tube 6, the bottom of the driving device 16 is connected with a flashboard 19, the driving device 16 comprises a driving handle 26 and a connecting piece 27, one end of the connecting piece 27 is connected with the driving handle 26, the other end of the connecting piece 27 is connected with the shutter 19, and the driving handle 26 is used for driving the shutter 19 to rise or fall.

In a detailed description, the top of the sliding sleeve 2 is detachably provided with a sealing sleeve 8, the sealing sleeve 8 is provided with a sealing groove 24, the sealing groove 24 is provided with a first internal thread 21, the top of the sliding sleeve 2 is provided with a first external thread 20, the sealing sleeve 8 is in threaded connection with the sliding sleeve 2, the bottom of the sealing groove 24 is provided with a sealing ring 25, the sealing ring 25 is used for sealing, when blood or body fluid drainage is needed, the sealing sleeve 8 is used for sealing the sliding sleeve 2, when large-trauma instruments such as a planing device and a grinding drill are needed, the sealing sleeve 8 is opened, and the sealing ring is arranged to enable the sealing performance to be better.

Further saying in detail, slide 1 top is provided with spacing recess 9, is provided with the spacing bulge loop 10 that is used for going into spacing recess 9 on the perisporium that sliding sleeve 2 below set up, sets up and makes the sliding sleeve in the in-process that down promotes, can block into spacing recess for the sliding sleeve gets into the joint and can be fixed after arriving the deepest position, prevents that the sliding sleeve from stretching into the overlength and stabbing the articular tissue.

Further saying in detail, the upper and lower both sides of spacing bulge loop 10 all are provided with guiding edge 11, offer on the perisporium of spacing recess 9 with guiding edge 11 assorted fastening groove 12, set up and make spacing bulge loop 10 card go into spacing recess when fixed, prevent to loose 2 in the in-process sliding sleeve of operation and take off.

In further detail, the outside of the protective membrane 4 is provided with the lines 13 for skid resistance, so that the protective membrane 4 is tightly attached to the local anatomical structure, and the operation is convenient.

In further detail, the top of the sliding seat 1 is provided with a flange 14 for being clamped on the surface of the joint part, and the arrangement enables the sliding seat 1 to be fixed on the surface of the joint part, so that when the sliding sleeve 2 is pushed or pulled, the sliding seat 1 can play a role in positioning and limiting.

In further detail, the flange 14 is disposed below the catheter 6, so that the catheter is always located outside the joint, and the operation of the catheter 6 is facilitated.

In a detailed description, the installation hole 3 is provided with a guide angle 15, and the sliding sleeve 2 is conveniently inserted into the installation hole 3 when being positioned outside the sliding seat 1 due to the arrangement

In further detail, the connecting piece 27 is provided with the second external thread 22, the valve body 17 is provided with the second internal thread 23, and the connecting piece is in threaded connection with the valve body 17, so that the device is convenient to operate, and the opening or closing of the catheter 6 can be controlled only by rotating the driving handle.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.