CN216060650U

CN216060650U - Abrasive drilling working sleeve for spinal endoscopic surgery

Info

Publication number: CN216060650U
Application number: CN202121688036.5U
Authority: CN
Inventors: 张乾坤; 彭湘霖; 邹南方
Original assignee: Second Peoples Hospital of Huaihua
Current assignee: Second Peoples Hospital of Huaihua
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-18
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a grinding drill working sleeve for a spinal endoscopic surgery, which comprises a sleeve body and a sleeve head part, wherein one end of the sleeve head part is detachably connected with one end of the sleeve body, one side of the other end of the sleeve head part is provided with a grinding hollow part for exposing a grinding drill for grinding operation, and the other end of the sleeve head part is provided with a grinding drill limiting part for preventing the grinding drill from extending outwards along the sleeve head part. The casing head of the abrasive drilling working casing can be connected with different casing bodies, and the casing bodies can also be connected with different casing heads, so that the flexibility of the abrasive drilling working casing is improved; furthermore, after the abrasive drill is inserted into the head of the sleeve, the abrasive drill can limit the position through the limiting part of the abrasive drill, the nerve below the abrasive drill is prevented from being damaged when the abrasive drill extends out of the lower end of the head of the sleeve, the limiting part of the abrasive drill plays a role in isolating the nerve and the abrasive drill, the risk of an operation is reduced, and the requirement of an operation doctor is also reduced.

Description

Abrasive drilling working sleeve for spinal endoscopic surgery

Technical Field

The utility model relates to the field of medical auxiliary devices, in particular to a grinding drill working sleeve for a spinal endoscopic surgery.

Background

Spinal endoscopic surgery is a percutaneous endoscopic discectomy, in which the herniated intervertebral disc tissue is taken out through the intervertebral foramen or a 'safe triangular space', so as to achieve decompression and release of the dura mater and the nerve roots. To effectively avoid intraoperative injury to the nerve roots, herniated or herniated disc material is typically removed under direct endoscopic vision. When it is desired to abrade the herniated disc tissue during a surgical procedure, the burr working cannula is typically first inserted into one side of the herniated disc tissue, and then an abrasive burr is inserted from the burr working cannula and abraded away from one side of the herniated disc tissue to the other.

Currently, to prevent the burr from grinding the non-grinding side, the non-grinding side of the burr working sleeve is provided with a stop (by setting the end of the burr working sleeve to a wedge shape). However, due to the bottom opening, the burr of the burr working sleeve may continue to move downwards in the case of possible incorrect manipulation by the surgeon, and the lower side of the burr working sleeve is ground, which may pose a significant damage threat to the underlying nerve. Therefore, spinal endoscopic surgery requires a very high level of experience from the physician.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a grinding drill working sleeve for a spinal endoscopic surgery, thereby solving the problems.

In order to achieve the purpose, the utility model discloses a grinding drill working sleeve for a spinal endoscopic surgery, which comprises a sleeve body and a sleeve head part, wherein one end of the sleeve head part is detachably connected with one end of the sleeve body, one side of the other end of the sleeve head part is provided with a grinding hollow part for exposing a grinding drill for grinding operation, and the other end of the sleeve head part is provided with a grinding drill limiting part for preventing the grinding drill from extending outwards along the sleeve head part.

Furthermore, the grinding and drilling limiting part is of a spherical crown shell structure protruding downwards, and a spherical crown curved surface is arranged on the outer side of the spherical crown shell structure.

Furthermore, the included angle between the upper end surface of the spherical crown shell structure and the side surface of the grinding hollow-out part is 90-135 degrees.

Furthermore, one end of the sleeve head is in threaded connection with one end of the sleeve body, the outer walls of the sleeve body and the sleeve head are arranged in an aligned mode, and the inner walls of the sleeve body and the sleeve head are arranged in an aligned mode.

Furthermore, the grinding hollow-out parts are symmetrically arranged relative to a middle vertical plane passing through the axis on the sleeve head.

Furthermore, the grinding device also comprises a shielding sleeve which shields the grinding hollow-out part through axial sliding, and the shielding sleeve is sleeved outside the sleeve body and the sleeve head part in a fixable sliding mode.

Furthermore, the other end of the sleeve body is provided with a sleeve body external thread, and one end of the shielding sleeve is provided with a shielding sleeve internal thread which can be in threaded connection with the sleeve body external thread.

Furthermore, a shielding sleeve plane used for rotating the shielding sleeve is uniformly distributed on the outer side of one end of the shielding sleeve in the circumferential direction.

Compared with the prior art, the utility model has the advantages that:

the casing head of the abrasive drilling working casing can be connected with different casing bodies, and the casing bodies can also be connected with different casing heads, so that the flexibility of the abrasive drilling working casing is improved; furthermore, after the abrasive drill is inserted into the head of the sleeve, the abrasive drill can limit the position through the limiting part of the abrasive drill, the nerve below the abrasive drill is prevented from being damaged when the abrasive drill extends out of the lower end of the head of the sleeve, the limiting part of the abrasive drill plays a role in isolating the nerve and the abrasive drill, the risk of an operation is reduced, and the requirement of an operation doctor is also reduced.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a first axial schematic view of a burr working cannula for use in a spinal endoscopic procedure in accordance with an embodiment of the present invention;

FIG. 2 is a second axial view of a burr working sleeve for use in a spinal endoscopic procedure, in accordance with an embodiment of the present invention;

FIG. 3 is an exploded view of the cannula body and cannula head as disclosed in one embodiment of the present invention;

FIG. 4 is a schematic axial view of a second embodiment of the present invention, illustrating a milling working cannula for spinal endoscopic surgery;

fig. 5 is an axial view of the shielding sleeve according to the second embodiment of the present invention.

Illustration of the drawings:

1. a sleeve body; 11. the external thread of the sleeve body; 2. a cannula head; 21. grinding the hollow part; 211. a side surface; 22. grinding and drilling the limiting part; 221. a spherical crown curved surface; 222. an upper end surface; 3. grinding and drilling; 4. shielding the sleeve; 41. shielding the internal thread of the sleeve; 42. shielding the plane of the sleeve; 5. a middle vertical plane.

Detailed Description

The embodiments of the utility model will be described in detail below with reference to the drawings, but the utility model can be implemented in many different ways as defined and covered by the claims.

The first embodiment is as follows:

as shown in fig. 1-3, the utility model discloses a drill grinding working cannula for a spinal endoscopic surgery, which comprises a cannula body 1 and a cannula head 2, both of which are thin-walled stainless steel pipes, wherein one end of the cannula head 2 is detachably connected with one end of the cannula body 1, and specifically, one end of the cannula head 2 is in threaded connection with one end of the cannula body 1, so that the cannula head 2 can be connected with different cannula bodies 1, and similarly, the cannula body 1 can also be connected with different cannula heads 2. The outer wall of sleeve pipe body 1 and sleeve pipe head 2 aligns the setting, and the inner wall of sleeve pipe body 1 and sleeve pipe head 2 aligns the setting, and the equal smooth seamless butt joint of outer wall and inner wall of sleeve pipe body 1 and sleeve pipe head 2 promptly, and it is internal that the step is not convenient for insert in the surface on the one hand, and on the other hand the inner wall is smooth to be convenient for insert abrasive drilling 3. One side of the other end of casing head 2 is provided with the grinding fretwork portion 21 that is used for abrasive drill 3 to expose with the grinding operation, and the other end of casing head 2 is provided with and is used for preventing abrasive drill 3 along the spacing portion 22 of abrasive drill that casing head 2 outwards stretched out, thereby, after abrasive drill 3 inserted casing head 2, can carry on spacingly through the spacing portion 22 of abrasive drill, prevent that it stretches out and then endangers the nerve that is located the below from the lower extreme of casing head 2, the spacing portion 22 of abrasive drill has played the effect of keeping apart nerve and abrasive drill 3, the risk of operation has been reduced, surgeon's requirement has also been reduced.

In this embodiment, in order to further avoid the damage to the internal tissue during the insertion of the working cannula, the grinding drill limiting portion 22 is a downwardly convex spherical crown shell structure, and a smooth spherical crown curved surface 221 is disposed on the outer side of the spherical crown shell structure, so that the acute angle structure of the grinding drill limiting portion 22 is avoided.

In this embodiment, the included angle between the upper end surface 222 of the spherical cap shell structure and the side surface 211 of the grinding hollow part 21 is 90 ° to 135 °, so as to ensure the area of the hollow area, and facilitate grinding of the intervertebral disc tissue on one side.

In this embodiment, in order to facilitate the machining of the grinding hollow portion 21, the grinding hollow portion 21 is disposed symmetrically with respect to the axis-passing perpendicular plane 5 on the casing head 2, and the machining can be completed by simple wire cutting.

Example two:

in this embodiment, as shown in fig. 4 to 5, in order to realize real-time adjustment of the area of the hollow area of the grinding hollow portion 21 and control the size of the processing area of the grinding drill 3, the shielding sleeve 4 for shielding the grinding hollow portion 21 by axial sliding is further included, the shielding sleeve 4 is slidably sleeved outside the sleeve body 1 and the sleeve head 2 in a fixable manner, when the shielding sleeve 4 moves upward, the hollow processing area of the grinding hollow portion 21 can be enlarged, and when the shielding sleeve 4 moves downward, the hollow processing area of the grinding hollow portion 21 can be reduced, thereby realizing flexible adjustment of the processing area.

Specifically, when adjusting, the other end of the sleeve body 1 is provided with a sleeve body external thread 11, and one end of the shielding sleeve 4 is provided with a shielding sleeve internal thread 41 which can be connected with the sleeve body external thread 11 in a threaded manner, so that relative up-and-down movement can be realized by rotating the shielding sleeve 4. In order to facilitate the rotation adjustment, the shielding sleeve planes 42 for rotating the shielding sleeve 4 are uniformly distributed on the outer circumference of one end of the shielding sleeve 4, and the shielding sleeve planes 42 play a role of a clamping surface.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a brill working sleeve pipe for backbone endoscopy operation, its characterized in that, includes sleeve pipe body (1) and sleeve pipe head (2), the one end of sleeve pipe head (2) with the one end detachable connection of sleeve pipe body (1), one side of the other end of sleeve pipe head (2) is provided with and is used for brill (3) to expose with grinding operation's grinding fretwork portion (21), just the other end of sleeve pipe head (2) is provided with and is used for preventing to bore (3) along the outside spacing portion (22) of brill that stretches out of sleeve pipe head (2).

2. The burr working sleeve for spinal endoscopic surgery according to claim 1, wherein the burr limiting portion (22) is a downward-protruded spherical crown shell structure, and a spherical crown curved surface (221) is disposed outside the spherical crown shell structure.

3. The abrasive drilling working cannula for spinal endoscopic surgery according to claim 2, characterized in that the angle between the upper end face (222) of the spherical cap shell structure and the side face (211) of the grinding hollow (21) is 90 ° to 135 °.

4. The abrasive drilling working sleeve for the spinal endoscopic surgery according to claim 1, wherein one end of the sleeve head (2) is in threaded connection with one end of the sleeve body (1), the outer walls of the sleeve body (1) and the sleeve head (2) are aligned, and the inner walls of the sleeve body (1) and the sleeve head (2) are aligned.

5. Abrasive working cannula for spinal endoscopic surgery according to claim 1, characterized in that said abrasive hollowed-out portion (21) is arranged symmetrically with respect to the axis through the median plane (5) on the cannula head (2).

6. A burr removal working sleeve for a spinal endoscopic surgery according to any one of claims 1 to 5, further comprising a shielding sleeve (4) for shielding said grinding hollow portion (21) by axial sliding, said shielding sleeve (4) being slidably fitted over the outside of said sleeve body (1) and said sleeve head (2) in a fixable manner.

7. The abrasive drilling working sleeve for the spinal endoscopic surgery according to claim 6, wherein the other end of the sleeve body (1) is provided with a sleeve body external thread (11), and one end of the shielding sleeve (4) is provided with a shielding sleeve internal thread (41) which can be in threaded connection with the sleeve body external thread (11).

8. The abrasive drilling working sleeve for the spinal endoscopic surgery according to claim 7, characterized in that the shielding sleeve planes (42) for rotating the shielding sleeve (4) are uniformly distributed on the outer side of one end of the shielding sleeve (4) in the circumferential direction.