CN219814198U

CN219814198U - Drag hook special for spine UBE operation

Info

Publication number: CN219814198U
Application number: CN202320739364.6U
Authority: CN
Inventors: 叶陈毅; 张桦
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-10-13
Anticipated expiration: 2033-04-06

Abstract

The utility model discloses a special retractor for spine UBE operation in the technical field of medical appliances, which comprises: cross arm, perpendicular arm and tooth portion, the drag hook still includes: the utility model discloses a drag hook which is characterized in that grooves are formed in two sides of a cross arm, the grooves extend to two sides of a vertical arm, and the grooves are formed in two sides of the cross arm and are used for reducing the width of the vertical arm, so that the width of a drag hook part of the drag hook is reduced, the drag hook can extend into a tiny wound, the using range of the drag hook is increased, and the wound of a patient is reduced.

Description

Drag hook special for spine UBE operation

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a special retractor for spine UBE operation.

Background

In backbone UBE operation, in order to ensure that the view field is clear in the operation, soft tissues such as fascia and muscle are blocked by using a drag hook, and a common drag hook comprises a vertebral lamina drag hook, in minimally invasive operation, the view field is poor, the internal large muscle soft tissues are required to be destroyed to realize subsequent operation and ensure the view field, especially for novice, the wound is larger, the patient can recover longer, and the skin incision length is only about 1-2 cm, and the conventional vertebral lamina drag hook has large volume and cannot be used.

Disclosure of Invention

The utility model aims to provide a special retractor for spine UBE surgery, which aims to solve the problems that the minimally invasive operation proposed in the background technology is only about 1-2 cm in skin incision length, and the conventional vertebral plate retractor is large in size and cannot be used.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a retractor dedicated for spinal UBE surgery, comprising: cross arm, perpendicular arm and tooth portion, the drag hook still includes: grooves arranged on two sides of the cross arm;

the grooves on both sides extend to both sides of the vertical arm.

Preferably, the cross arm comprises a cross arm main body and an expanding part which is slidably arranged at one end of the cross arm main body; the cross arm main body is provided with a fixing piece for fixing the expansion part; the cross arm is used for expanding the service length of the cross arm.

Preferably, the tooth is detachably mounted on the vertical arm; so that the tooth can be detached.

Preferably, the end part of the cross arm is movably connected with the end part of the vertical arm.

Preferably, the end of the cross arm is connected with the end of the vertical arm through a hinge; for adjusting the angle between the cross arm and the vertical arm.

Preferably, the end part of the cross arm is detachably connected with the end part of the vertical arm; so that the cross arm and the vertical arm can be separated.

Compared with the prior art, the utility model has the beneficial effects that: the two sides of the cross arm are provided with the grooves for reducing the width of the vertical arm, so that the width of the drag hook part of the drag hook is reduced, the drag hook can penetrate into a tiny wound, the using range of the drag hook is increased, and the wound of a patient is reduced.

Drawings

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic diagram of a cross arm structure according to the present utility model;

FIG. 3 is a schematic view of the connection structure of the cross arm and the vertical arm of the present utility model;

fig. 4 is a schematic view of the structure of the vertical arm of the present utility model.

In the figure: 1. a cross arm; 101. a cross arm body; 102. an expansion unit; 103. a fixing member; 2. a vertical arm; 3. a tooth portion; 4. a groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, a retractor special for a spinal UBE operation, comprising: the device comprises a cross arm 1, a vertical arm 2 and a tooth part 3, wherein the vertical arm 2 is arranged at the end part of the cross arm 1, and the tooth part 3 is arranged at the end of the vertical arm 2 far away from the cross arm 1.

Referring to fig. 1, grooves 4 are formed on both sides of the cross arm 1; the grooves 4 on the two sides extend to the two sides of the vertical arm 2, namely the width of the vertical arm 2 is smaller, so that the drag hook is suitable for tiny wounds of minimally invasive surgery, and loss increase of patients is avoided.

In this embodiment, as a further optimized solution, referring to fig. 2, the cross arm 1 includes a cross arm main body 101 and an expansion portion 102 slidably mounted on one end of the cross arm main body 101; the cross arm main body 101 is provided with a fixing piece 103 (a bolt, a fastening end of the bolt is contacted with the expansion part 102 and is used for fixing the expansion part 102); unscrewing the fixing piece 103, and moving the expanding part 102 for adjusting the length of the cross arm 1; when the cross arm 1 is used, the cross arm can be adjusted according to the use requirement of a user.

In this embodiment, as a further optimized solution, referring to fig. 1 and 2, the tooth 3 is detachably mounted on the vertical arm 2; the tooth part 3 can be detached for replacement; so that a new tooth 3 can be replaced, or a tooth 3 having a different number of teeth can be replaced.

In this embodiment, as a further optimized solution, please refer to fig. 3, the end of the cross arm 1 is movably connected with the end of the vertical arm 2;

wherein, the end part of the cross arm 1 is connected with the end part of the vertical arm 2 through a hinge; the vertical arm 2 can rotate at the end of the cross arm 1, and is used for adjusting the angle between the cross arm 1 and the vertical arm 2.

In this embodiment, as a further optimized solution, please refer to fig. 4, the end of the cross arm 1 is movably connected with the end of the vertical arm 2;

wherein, the end part of the cross arm 1 is detachably connected with the end part of the vertical arm 2; make erect arm 2 can dismantle for change, can change different erect arm 2 (the perpendicular arm 2 of change can be different length, or different angles for make the drag hook can insert the depths of patient wound, also can change the contained angle of erect arm 2 and xarm 1), increase the variety that the drag hook used.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A retractor dedicated for spinal UBE surgery, comprising: cross arm (1), perpendicular arm (2) and tooth (3), its characterized in that: the drag hook also comprises: grooves (4) arranged on two sides of the cross arm (1);

the grooves (4) on both sides extend to both sides of the vertical arm (2).

2. A retractor for spinal UBE surgery according to claim 1 and wherein: the cross arm (1) comprises a cross arm main body (101) and an expanding part (102) which is slidably arranged at one end of the cross arm main body (101); the cross arm main body (101) is provided with a fixing piece (103) for fixing the expanding part (102).

3. A retractor for spinal UBE surgery according to claim 1 and wherein: the tooth part (3) is detachably arranged on the vertical arm (2).

4. A retractor for spinal UBE surgery according to claim 1 and wherein: the end part of the cross arm (1) is movably connected with the end part of the vertical arm (2).

5. The retractor for spinal UBE surgery according to claim 4, wherein: the end part of the cross arm (1) is connected with the end part of the vertical arm (2) through a hinge piece.

6. The retractor for spinal UBE surgery according to claim 4, wherein: the end part of the cross arm (1) is detachably connected with the end part of the vertical arm (2).