CN108784762B - Tissue Expansion Instruments for Microscopic Bone Occlusion Surgery - Google Patents

Abstract

The invention discloses a tissue expanding instrument for a bone shielding operation under a scope, which comprises a slide bar, a sliding adjusting fixer and a spreading component, wherein the sliding adjusting fixer is sleeved on the slide bar; pushing the sliding adjusting fixer, which drives the opening assembly to open or retract. According to the invention, the sliding adjustment fixer is pushed to drive the stretching assembly to stretch into an X shape, so that the stretching of the subscapular muscles is realized; the whole process is simple and convenient, the process that the coracoid process is required to be spread by the existing spreader is simplified, the operation time is further shortened, and the operation effect is improved.

Description

Tissue Expansion Instruments for Microscopic Bone Occlusion Surgery

technical field

The invention belongs to the technical field of medical instruments and equipment for surgery, and in particular relates to a tissue expansion instrument for endoscopic bone shielding surgery.

Background technique

In the process of subscapularis surgery, the cut coracoid process needs to be fixed in the glenoid bony defect area of the shoulder joint; the existing special instruments for this process are cumbersome to use, and need to be positioned and pierced through the arthroscopic exchange rod first After the subscapularis, conventional arthroscopic instruments are used to widen the piercing exit in front. The process is recurrent and inefficient, which makes it slow and difficult to fix the coracoid process in the proper position of the glenoid under the microscope; If the lower muscle is separated, a little carelessness will touch or injure important surrounding blood vessels and nerves, which will affect the final surgical effect and even endanger the patient's life.

Contents of the invention

The purpose of the present invention is to provide a tissue expansion instrument for bone shielding surgery under the microscope. Through the cooperation between the sliding rod, the sliding adjustment fixator and the expansion components, the process of coracoid process expansion is simplified, thereby reducing the operation time. Improve the surgical effect.

The technical scheme adopted in the present invention is:

A tissue expansion instrument for endoscopic bone occlusion surgery, which includes a sliding rod, a sliding adjustment fixer, and a distraction assembly, the sliding adjustment fixator is sleeved outside the slide rod, and one end of the distraction assembly is fixed on the slide rod , and the other end is fixed on the sliding adjustment fixer; the sliding adjustment fixer is pushed, which drives the expansion component to expand or retract.

The present invention is also characterized in that,

The expansion assembly includes a fixed rod, a first X-shaped bracket and a second X-shaped bracket, one end of the fixed rod is fixed on the sliding adjustment fixer, and the other end is arranged on the sliding rod and connected with the first X-shaped bracket and the second X-shaped bracket. One end of the second X-shaped bracket is connected, and the other ends of the first X-shaped bracket and the second X-shaped bracket are fixed on the slide bar.

Both the first X-shaped bracket and the second X-shaped bracket include a first strut and a second strut, and the middle part of the first strut is hinged to the middle part of the second strut.

There are two expansion components, which are respectively symmetrically arranged on the upper and lower sides or the left and right sides of the slide bar.

The outer wall of the slide bar is provided with inverted teeth for fixing the sliding adjustment fixer.

The sliding adjustment fixer is provided with a hole matched with the inverted tooth.

The sliding rod is a hollow structure.

The inverted teeth are arranged in two rows.

The end of the sliding rod inserted into the subscapularis has a frustoconical structure.

Compared with the prior art, when in use, push the sliding adjustment fixer to move along the slide bar, which drives the stretching assembly to stretch into an X shape, realizing the stretching of the subscapularis muscle; the whole process is simple and convenient, simplifying the existing stretching The device requires the process of opening the coracoid process, thereby reducing the operation time and improving the operation effect.

Description of drawings

Fig. 1 is a schematic structural view of a tissue expansion instrument for endoscopic bone occlusion surgery provided by an embodiment of the present invention;

Fig. 2 is a side view of a tissue expansion instrument for endoscopic bone occlusion surgery according to an embodiment of the present invention;

3-6 are exploded views of the use process of the tissue expansion instrument for endoscopic bone occlusion surgery according to the embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The embodiment of the present invention provides a tissue expansion instrument for endoscopic bone occlusion surgery, as shown in Fig. Outside the bar 1, one end of the stretching component 3 is fixed on the slide bar 1, and the other end is fixed on the sliding adjustment fixer 2; in this way, the sliding adjustment fixer 2 is pushed to move along the slide bar 1, and the sliding adjustment fixer 2 drives the stretching Component 3 is stretched into an X shape to realize the stretching of the subscapularis muscle.

The expansion assembly 3 includes a fixed rod 31, a first X-shaped bracket 32 and a second X-shaped bracket 33. One end of the fixed rod 31 is fixed on the sliding adjustment fixture 2, and the other end is arranged on the slide bar 1 and connected to the first X-shaped bracket. Type bracket 32 is connected with one end of the second X-type bracket 33, and the other end of the first X-type bracket 32 and the second X-type bracket 33 is fixed on the slide bar 1, and like this, the sliding adjustment fixer 2 drives the fixed bar 31 forward Moving, the fixed rod 31 pushes the first X-shaped bracket 32 and the second X-shaped bracket 33 to form an X-shaped structure.

The middle parts of the first X-shaped bracket 32 and the second X-shaped bracket 33 are connected by a compressible connecting rod 34, and the volume of the spreader can be reduced through the connecting rod 34.

The first X-shaped bracket 32 and the second X-shaped bracket 33 all include a first strut 321 and a second strut 322, and the middle part of the first strut 321 and the middle part of the second strut 322 are hinged, like this, the first strut 321 cooperates with the second strut 322 to form an X shape.

There are two stretching components 3, which are respectively symmetrically arranged on the upper and lower sides or the left and right sides of the slide bar 1, so that there will be enough space to perform the operation after stretching the subscapularis.

The outer wall of the slide bar 1 is provided with inverted teeth 11 for fixing the sliding adjustment fixture 2. The inverted teeth 11 are provided with two rows, and the sliding adjustment fixture 2 is provided with holes 21 matched with the inverted teeth 11. Cooperating with the hole 21, the expansion component 3 can be fixed after being expanded.

The slide bar 1 is a hollow structure, so when in use, the slide bar 1 of the hollow structure can pass through the exchange rod, which is convenient to use.

One end of the slide bar 1 inserted into the subscapularis has a circular frustum structure, so that the insertion is more convenient on the basis of reducing the entry of human tissues into the slide bar 1 .

How to use: As shown in Figure 3-6, first insert the medical exchange rod into the subscapularis muscle that needs to be stretched, and then put the spreader on the exchange rod through the sliding rod 1 of the hollow structure, and then push and slide to adjust the fixer 2 and pull out the exchange rod. At this time, the sliding adjustment fixer 2 drives the fixed rod 31 to move forward, and the fixed rod 31 pushes the first X-shaped bracket 32 and the second X-shaped bracket 33 to form an X-shaped structure, realizing the support of the subscapularis open.

With the above scheme, compared with the prior art, when in use, the sliding adjustment fixer is pushed to move along the slide bar, and the sliding adjustment fixer drives the stretching assembly to stretch into an X shape, realizing the stretching of the subscapularis muscle; the whole process is simple and convenient , which simplifies the process of opening the coracoid process with the existing spreader, thereby reducing the operation time and improving the operation effect.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (8)

1. The tissue expansion instrument for endoscopic bone occlusion surgery is characterized in that it comprises a slide bar, a slide adjustment fixer and a stretching assembly, the slide adjustment fixer is sleeved outside the slide bar, and the stretching assembly One end is fixed on the slide bar, and the other end is fixed on the sliding adjustment fixer; when the sliding adjustment fixer is pushed to move along the slide bar, the sliding adjustment fixer drives the stretching assembly to stretch or retract; the stretching The assembly includes a fixed rod, a first X-shaped bracket and a second X-shaped bracket. One end of the fixed rod is fixed on the sliding adjustment fixer, and the other end is arranged on the sliding rod and connected with the first X-shaped bracket and the second X-shaped bracket. One end of the bracket is connected, and the other ends of the first X-shaped bracket and the second X-shaped bracket are fixed on the slide bar. 2. The tissue expansion instrument for endoscopic bone occlusion surgery according to claim 1, wherein the first X-shaped support and the second X-shaped support both comprise a first strut and a second strut, so The middle part of the first strut and the middle part of the second strut are hinged. 3 . The tissue expansion instrument for endoscopic bone occlusion surgery according to claim 2 , wherein there are two spreader components, which are respectively symmetrically arranged on the upper and lower sides or the left and right sides of the slide bar. 4 . 4. The tissue expansion instrument for endoscopic bone occlusion surgery according to any one of claims 1-3, characterized in that, the outer wall of the sliding rod is provided with inverted teeth for fixing the sliding adjustment fixture. 5 . The tissue expansion instrument for endoscopic bone occlusion surgery according to claim 4 , wherein holes matching the inverted teeth are provided on the sliding adjustment fixer. 5 . 6 . The tissue expansion instrument for endoscopic bone occlusion surgery according to claim 5 , wherein the sliding rod is a hollow structure. 7 . 7 . The tissue expansion instrument for endoscopic bone occlusion surgery according to claim 6 , wherein the inverted teeth are arranged in two rows. 8 . 8 . The tissue expansion instrument for endoscopic bone shielding surgery according to claim 7 , wherein the end of the sliding rod inserted into the subscapularis muscle has a frusto-conical structure. 9 .