CN211934156U

CN211934156U - Intervertebral space struts ware

Info

Publication number: CN211934156U
Application number: CN202020256612.8U
Authority: CN
Inventors: 韩骁; 行勇刚; 胡临; 韩晓光; 于杰; 田伟
Original assignee: Beijing Jishuitan Hospital
Current assignee: Beijing Jishuitan Hospital
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-11-17
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses an intervertebral disc space struts ware has set up symmetrical left side pincers piece and right side pincers piece, the middle part of left side pincers piece and right side pincers piece is passed through the rivet and is articulated, and the lower part of left side pincers piece and right side pincers piece all is equipped with the handle, and the middle part all keeps vertical and all is equipped with the chuck on upper portion with upper portion, the region of left side pincers piece and right side pincers piece between handle and rivet all is equipped with bends. The beneficial technical effects are as follows: the space has been let out for fusing the ware and getting into the intervertebral space when strutting the ware to the doctor holds, can make the push rod promote to fuse the ware and get into the intervertebral space that has strutting smoothly, should strut the ware and have and conveniently fuse the ware and get into the intervertebral space, has the characteristics that improve medical operation efficiency, the guarantee smooth completion of operation.

Description

Intervertebral space struts ware

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an intervertebral space struts ware.

Background

The lumbar vertebra side anterior approach intervertebral Fusion (OLIF) can be implanted into an intervertebral Fusion device with larger volume, is beneficial to bone grafting and osseous Fusion, can better recover the intervertebral space height and the balance of the lordosis and the coronal plane, and can indirectly reduce pressure, thereby reducing nerve injury and adhesion. The operation mode has small approach injury, is a newer spine surgery mode, and is popularized and applied.

In order to restore the height of the intervertebral space and indirectly reduce the pressure, the most important step in the OLIF operation is to open the intervertebral space, and a plate-shaped spreader or a trial model spreader is generally used in the prior art to open the intervertebral space. When the sheet-shaped distractor is used, a flat support sheet is required to be horizontally inserted between two vertebral bodies, and then the support sheet is rotated by 90 degrees to be erected, so that the edge of the outer contour of the support sheet is in abutting contact with the upper end plate and the lower end plate of the two vertebral bodies, and the intervertebral space is distracted; when the test model spreader is used, a test model which is consistent with the shape of the intervertebral fusion device to be placed needs to be directly driven into the space between two vertebral bodies, so that the aim of spreading the intervertebral space is fulfilled.

The technology has the defects that for the sheet-shaped distracter, when the intervertebral space is distracted, the edge of the supporting sheet is always abutted against the upper end plate and the lower end plate of the two vertebral bodies, the supporting sheet is thinner, the contact area between the end plates and the supporting sheet is very small, so that the local pressure of the end plates is too large, and the damage is very easy to cause; for the mold testing distractor, a mold testing needs to be gradually driven into the space between two vertebral bodies, and only a local area at the front end of the mold testing is contacted with the upper end plate and the lower end plate during initial driving, so that the distraction mode also has the risk of damage to the end plates due to overlarge local pressure of the end plates; in addition, the slice struts ware and examination mould struts the ware and all has multiple size specification, need be according to patient's actual conditions at the in-process that struts the intervertebral space, according to the different size struts ware of trying step by little to big order, until confirming the suitable size's that can strut the intervertebral space struts ware for the operation process is comparatively loaded down with trivial details. In order to restore intervertebral height and indirectly reduce pressure, the most important step in OLIF surgery is to open the intervertebral space.

If the endplates are damaged during the implantation of the prosthesis, collapse of the cage and subsequent surgical failure may result. In the prior art, a tool used to directly drive the fusion cage into the intervertebral space is referred to as a driver. The impactor has no opening effect on the gap, and the end plate is easy to damage. Therefore, the development and development of the distractor which facilitates the fusion cage to enter the intervertebral space become an important scientific research subject of the lumbar vertebra side anterior approach intervertebral fusion operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a intervertebral space struts ware is provided, the left pincers piece and the right pincers piece of the ware that struts all are equipped with in the region between handle and rivet and bend, for fusing the ware and getting into the space of having left between the awl when holding the ware that struts, strut the anterior of ware and be direct outside inserter, can realize inserting earlier and strut the clearance in the clearance, squeeze into again and fuse the ware, this ware that struts has simple structure convenient operation, conveniently fuses the characteristics that the ware got into intervertebral space.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides an intervertebral space struts ware, includes symmetrical left side pincers piece and right pincers piece, the middle part of left side pincers piece and right pincers piece is passed through the rivet and is articulated, and the lower part of left side pincers piece and right pincers piece all is equipped with the handle, and the middle part all keeps vertical and all is equipped with the chuck on upper portion with upper portion, the region of left side pincers piece and right pincers piece between handle and rivet all is equipped with bends.

The intervertebral space distractor is characterized in that the left forceps piece and the right forceps piece are respectively provided with a first bending and a second bending in the region between the handle and the rivet, the first bending is performed at an angle alpha towards the left, the second bending is performed at an angle beta towards the right, the angle alpha of the first bending is the same as the angle beta of the second bending, and the handle and the chuck are kept parallel.

In the intervertebral space distractor, the first bending angle α and the second bending angle β are both 120 degrees.

The handle comprises a right clamp plate annular handle and a left clamp plate annular handle.

The utility model provides a pair of intervertebral space struts ware has set up including symmetrical left side pincers piece and right side pincers piece, the middle part of left side pincers piece and right side pincers piece is passed through the rivet and is articulated, and the lower part of left side pincers piece and right side pincers piece all is equipped with the handle, and the middle part all keeps vertical and all is equipped with the chuck on upper portion with upper portion, the region of left side pincers piece and right side pincers piece between handle and rivet all is equipped with bends. The beneficial technical effects are as follows: the space has been let out for fusing the ware and getting into the intervertebral space when strutting the ware to the doctor holds, can make the push rod promote to fuse the ware and get into the intervertebral space that has strutting smoothly, should strut the ware and have and conveniently fuse the ware and get into the intervertebral space, has the characteristics that improve medical operation efficiency, the guarantee smooth completion of operation.

Drawings

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

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a view B-B in fig. 3.

The parts in the figures are numbered: the clamp comprises a right clamp piece annular handle 1, a left clamp piece annular handle 2, a first bend 5, a left clamp piece 4, a second bend 3, a rivet deformation surface 6, a left clamp piece upper portion 7, a chuck 8, a fusion device 9, a rivet 10, a rivet center shaft 11, a right clamp piece 12, a push rod 13, a rivet gasket 14, wherein alpha is an angle of the first bend 5, and beta is an angle of the second bend 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a pair of intervertebral space struts ware, the embodiment is as follows:

the first embodiment is as follows: the utility model provides an intervertebral space struts ware, includes symmetrical left clamp 4 and right clamp 12, the middle part of left clamp 4 and right clamp 12 is articulated through rivet 10, and the lower part of left clamp 4 and right clamp 12 all is equipped with the handle, and the middle part all keeps vertical and all is equipped with chuck 8 on upper portion with upper portion, left side clamp 4 and right clamp 12 all are equipped with in the region between handle and rivet 10 and bend. The region of left side pincers piece 4 and right pincers piece 12 between handle and rivet 10 all is equipped with first bend 5 and second bend 3, first bend 5 is bent angle degree to the left and is alpha, and the second is bent 3 and is bent angle degree to the right and is beta, and the angle alpha of first bend 5 is the same with the angle beta of second bend 3 and makes handle and chuck 8 keep parallel. The angle α of the first bend 5 and the angle β of the second bend 3 are both 120 degrees.

The left clamp piece 4 and the right clamp piece 12 of the present embodiment may be made of 2Cr13 or 1Cr18Ni9Ti, and the first bend 5 and the second bend 3 are both manufactured by a punch forming and stress relief annealing process. The using method comprises the following steps: the left palm of the left hand of the operator is upward to hold the spreader for operation, the thumb of the left hand enters the left forceps slice annular handle 2, the other fingers enter the right forceps slice annular handle 1, and the left palm does not shield the forward pushing direction of the fusion device 9 and the push rod 13 thereof, so that the push rod 13 can be tightly held by the right hand to push the fusion device 9 into the intervertebral space. Namely, the front part of the spreader is used as a direct outside inserter, and can be inserted into the intervertebral space to spread the space and then is driven into the fusion cage 9.

Example two: the utility model provides an intervertebral space struts ware, includes symmetrical left clamp 4 and right clamp 12, the middle part of left clamp 4 and right clamp 12 is articulated through rivet 10, and the lower part of left clamp 4 and right clamp 12 all is equipped with the handle, and the middle part all keeps vertical and all is equipped with chuck 8 on upper portion with upper portion, left side clamp 4 and right clamp 12 all are equipped with in the region between handle and rivet 10 and bend. The region of left side pincers piece 4 and right pincers piece 12 between handle and rivet 10 all is equipped with first bend 5 and second bend 3, first bend 5 is bent angle degree to the left and is alpha, and the second is bent 3 and is bent angle degree to the right and is beta, and the angle alpha of first bend 5 is the same with the angle beta of second bend 3 and makes handle and chuck 8 keep parallel. The angle α of the first bend 5 and the angle β of the second bend 3 are both 120 degrees. The handle comprises a right clamp sheet annular handle 1 and a left clamp sheet annular handle 2. The left clamp piece 4 and the right clamp piece 12 of the present embodiment may be made of 2Cr13 or 1Cr18Ni9Ti, and the first bend 5 and the second bend 3 are both manufactured by a punch forming and stress relief annealing process. The method of using the present embodiment is the same as the first embodiment.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings herein. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides an intervertebral space struts ware, includes symmetrical left side pincers piece (4) and right side pincers piece (12), the middle part of left side pincers piece (4) and right side pincers piece (12) is passed through rivet (10) and is articulated, and the lower part of left side pincers piece (4) and right side pincers piece (12) all is equipped with the handle, and the middle part all keeps vertical and all is equipped with chuck (8), its characterized in that on upper portion with upper portion: the left clamp piece (4) and the right clamp piece (12) are provided with bends in the area between the handle and the rivet (10).

2. An intervertebral space distractor according to claim 1, wherein: the left clamp piece (4) and the right clamp piece (12) are provided with a first bending part (5) and a second bending part (3) in the region between the handle and the rivet (10), the first bending part (5) is bent leftwards to form an angle alpha, the second bending part (3) is bent rightwards to form an angle beta, the angle alpha of the first bending part (5) is the same as the angle beta of the second bending part (3), and the handle is kept parallel to the chuck (8).

3. An intervertebral space distractor according to claim 2, wherein: the angle alpha of the first bend (5) and the angle beta of the second bend (3) are both 120 degrees.

4. An intervertebral space distractor according to claim 3, wherein: the handle comprises a right clamp sheet annular handle (1) and a left clamp sheet annular handle (2).