CN212547137U

CN212547137U - Tibial plateau posterolateral locking bone fracture plate

Info

Publication number: CN212547137U
Application number: CN202020463084.3U
Authority: CN
Inventors: 方加虎; 宋李军; 陈建; 唐鹏宇
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-02-19
Anticipated expiration: 2030-04-01

Abstract

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a lateral locking coaptation board behind tibial plateau, include with fixed head in the lateral outside behind the tibial plateau, with the external side diaphysis cadre and be used for connecting head and cadre's neck behind the shin bone near-end, head and cadre all are equipped with a plurality of fixed orifices, the nail direction of advancing of the fixed orifices of cadre all inclines towards the back outside from the back inboard. The utility model provides an outside locking coaptation board behind tibial plateau, the nail direction of advancing of the fixed orifices of cadre all follow the back inboard towards the outside slope of back, and the design of fixed orifices nail direction of advancing makes the coaptation board can directly put into from the inboard incision in back, need not additionally to carry out the incision from the back outside again, can effectively reduce the operation incision, alleviates patient's misery, shortens the operation time.

Description

Tibial plateau posterolateral locking bone fracture plate

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an outer locking coaptation board behind tibial plateau.

Background

The tibial plateau fracture is a common lower limb fracture, and the common treatment mode of the tibial plateau fracture is internal fixation treatment, wherein the internal fixation treatment mode is mainly that the bone fracture plate is arranged in a fracture position through an incision, the bone fracture plate spans the fracture position, and the bone fracture plate is fixed at two ends of the fracture position by using screws, so that the bone at the fracture position is effectively fixed.

When the tibial plateau is fractured, the fractures of the rear inner side and the rear outer side of the tibial plateau usually occur simultaneously, the existing tibial plateau rear outer side locking bone fracture plate generally needs to be placed from an outer side incision, so that under the condition that the rear inner side and the rear outer side of the tibial plateau are fractured simultaneously, two incisions need to be carried out on the rear inner side and the rear outer side, the rear inner side bone fracture plate and the rear outer side bone fracture plate are placed respectively, and the fracture problems of the two sides cannot be solved through one side incision. This not only requires the patient to suffer additional pain, but also requires longer operation time. Therefore, there is a need to develop a tibial plateau posterolateral locking bone plate which can be used for both posterolateral independent fractures and both posteromedial and posterolateral fractures, reduce surgical incisions, relieve pain of patients and shorten the surgical time.

SUMMERY OF THE UTILITY MODEL

In order to solve present back outside coaptation board and need both sides incision when being used for the shin bone platform rear inner side and back outside simultaneous fracture, additionally increase the patient and hinder the pain, and the long problem of operating time, the utility model provides a shin bone platform rear outer side locking coaptation board, this coaptation board includes head, neck and cadre, and the nail direction of advancing of cadre's fixed orifices all inclines towards the back outside from the back inboard, and the design of fixed orifices nail direction of advancing makes the coaptation board can directly put into from the incision of back inboard, need not additionally to carry out the incision from the back outside again, can effectively reduce the operation incision, alleviates patient's misery, shortens operating time.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a lateral locking coaptation board behind tibial plateau, includes with fixed head in tibial plateau back outside, with the external diaphysis fixed cadre behind the shin bone near-end and be used for connecting head and cadre's neck, head and cadre all are equipped with a plurality of fixed orifices, the nail direction of advancing of the fixed orifices of cadre all inclines towards the back outside from the back inboard.

Specifically, the head portion is provided with three fixing holes in the lateral direction.

Specifically, the fixing hole of the head is a universal hole.

Specifically, the included angle between the nail feeding direction of the fixing hole of the head part and the sagittal plane of the human body is 30-50 degrees, and the nail feeding direction is inclined towards the far end by 5-15 degrees.

Specifically, the included angle between the nail feeding direction of the fixing hole of the cadre and the sagittal plane of the human body is 30-50 degrees.

Specifically, one fixing hole on the dry part close to the neck part is a first fixing hole, and the nail feeding direction of the first fixing hole is inclined towards the proximal end by 10-20 degrees.

Specifically, the width of the head portion is larger than the width of the trunk portion, which is larger than the width of the neck portion.

Specifically, the neck portion is not provided with a fixing hole.

Specifically, the neck portion can adjust the bending degree according to the bone shape.

Specifically, the locking bone plate has a surface and a bone-joining surface, the bone-joining surface of the head portion has a spatial geometry matching the bone-joining surface of the posterior lateral side of the tibial plateau, and the bone-joining surface of the stem portion has a spatial geometry matching the bone-joining surface of the proximal posterior lateral side of the tibia.

The utility model has the advantages that:

(1) the utility model provides a tibial plateau back outer side locking bone fracture plate, the direction of nail feeding of the fixing hole of cadre all inclines from the back inner side to the back outer side, the design of the direction of nail feeding of the fixing hole enables the bone fracture plate to be directly placed from the incision of the back inner side, and no extra incision is needed to be carried out from the back outer side, thereby effectively reducing the operation incision, relieving the pain of patients and shortening the operation time;

(2) the included angle between the nail feeding direction of the fixing holes at the head part and the cadre part of the utility model and the sagittal plane of the human body is 30-50 degrees, and the design of the angle is beneficial to the bone fracture plate to be placed into the rear nail from the incision at the inner side of the back;

(3) the fixing hole at the head part of the utility model is a universal hole, the nail feeding direction is not limited, the nail feeding direction is preferably inclined towards the far end by 5-15 degrees during the operation, not only can the screw be effectively prevented from entering the joint cavity, but also the nail feeding direction of the first fixing hole close to the neck part on the cadre is inclined towards the near end by 10-20 degrees, and a stable supporting structure can be formed between the screw at the head part and the screw at the first fixing hole, thus being beneficial to improving the stability;

(4) the head of the utility model is provided with three fixing holes which can be just clamped on the rear side wall of the rear outer side platform, the fixation is firmer, the stability is good, in addition, the fixing holes of the head are universal holes, and the nail feeding direction can be adjusted according to the actual situation;

(5) the utility model discloses a neck width is less than the width of cadre, at the operation in-process, can be according to the crooked degree of patient's skeleton form adjustment neck, and then adjusts the crooked degree of whole coaptation board to adapt to patient's skeleton form.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a front view of the locking bone plate of the present invention;

fig. 2 is a left side view of the locking bone plate of the present invention;

FIG. 3 is a perspective view of the locking bone plate of the present invention;

in the figure: a head; 2. a dry portion; 3. a neck portion; 4. a fixing hole; 41. a first fixing hole; 51. a surface; 52. and (5) bone-knitting surfaces.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

A tibia plateau posterolateral locking bone fracture plate comprises a head part 1 fixed with the posterolateral side of a tibia plateau, a dry part 2 fixed with a proximal tibia posterolateral backbone, and a neck part 3 used for connecting the head part 1 and the dry part 2, wherein the head part 1 and the dry part 2 are respectively provided with a plurality of fixing holes 4, and the nail feeding directions of the fixing holes 4 of the dry part 2 are inclined from the posterolateral side to the posterolateral side, as shown in figure 1.

In a particular embodiment, as shown in fig. 1, the head 1 is provided with three fixing holes 4 laterally. Three fixed orifices can just in time block on the back lateral wall of back outside platform, and fixed more firm, stability is good.

In a particular embodiment, as shown in fig. 1, the fixing hole 4 of the head 1 is a universal hole.

In a specific embodiment, the nail feeding direction of the fixing hole 4 of the head part 1 and the sagittal plane of a human body form an included angle of 30-50 degrees and incline towards the far end by 5-15 degrees. The design that the nail feeding direction is inclined towards the far end by 5-15 degrees can effectively prevent the screw from entering the joint cavity.

In a specific embodiment, the nail feeding direction of the fixing hole 4 of the dry part 2 and the sagittal plane of the human body form an included angle of 30-50 degrees. The design of the angle is beneficial to nail placement.

In one specific embodiment, as shown in fig. 1, one of the fastening holes 4 of the stem 2 near the neck 3 is a first fastening hole 41, and the nailing direction of the first fastening hole 41 is inclined by 10-20 ° toward the proximal end. Wherein, the nail feeding direction of the first fixing hole 41 inclines by 10-20 degrees towards the proximal end, which means that the nail feeding direction inclines by 10-20 degrees towards the proximal end based on the horizontal plane. During operation, the nail feeding direction of the head fixing hole is preferably inclined towards the far end by 5-15 degrees (the nail feeding direction is inclined towards the far end by 5-15 degrees on the basis of a horizontal plane), and the nail feeding direction of the first fixing hole is inclined towards the near end by 10-20 degrees, so that a stable supporting structure can be formed between the head screw and the first fixing hole screw, and the stability is improved.

In a specific embodiment, as shown in fig. 1, the width of the head portion 1 is greater than the width of the stem portion 2, and the width of the stem portion 2 is greater than the width of the neck portion 3.

In a particular embodiment, as shown in fig. 1, the neck 3 is not provided with fixing holes 4. The neck is usually located at a fracture of the bone, and fixation is achieved by the head and the shaft.

In a particular embodiment, the neck 3 can be adapted to the degree of flexion according to the bone morphology.

In one embodiment, as shown in fig. 2 and 3, the locking plate has a surface 51 and a bone-engaging surface 52, the bone-engaging surface 52 of the head 1 having a spatial geometry matching the posterior-lateral bone surface of the tibial plateau and the bone-engaging surface 52 of the stem 2 having a spatial geometry matching the proximal-posterior-lateral bone surface of the tibia.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a lateral locking coaptation board behind tibial plateau which characterized in that: the tibia platform comprises a head part (1) fixed with the rear outer side of a tibia platform, a dry part (2) fixed with a proximal rear outer side of a tibia and a neck part (3) used for connecting the head part (1) and the dry part (2), wherein the head part (1) and the dry part (2) are respectively provided with a plurality of fixing holes (4), and the nail feeding directions of the fixing holes (4) of the dry part (2) are inclined from the rear inner side to the rear outer side.

2. The tibial plateau posterolateral locking plate of claim 1, wherein: the head (1) is transversely provided with three fixing holes (4).

3. The tibial plateau posterolateral locking plate of claim 1, wherein: the fixing hole (4) of the head part (1) is a universal hole.

4. A tibial plateau posterolateral locking plate according to claim 3, wherein: the included angle between the nail feeding direction of the fixing hole (4) of the head (1) and the sagittal plane of a human body is 30-50 degrees, and the nail feeding direction inclines to 5-15 degrees towards the far end.

5. The tibial plateau posterolateral locking plate of claim 1, wherein: the included angle between the nail feeding direction of the fixing hole (4) of the cadre part (2) and the sagittal plane of the human body is 30-50 degrees.

6. The tibial plateau posterolateral locking plate of claim 1, wherein: one fixing hole (4) on the dry part (2) close to the neck part (3) is a first fixing hole (41), and the nail feeding direction of the first fixing hole (41) is inclined towards the proximal end by 10-20 degrees.

7. The tibial plateau posterolateral locking plate of claim 1, wherein: the width of the head part (1) is larger than that of the dry part (2), and the width of the dry part (2) is larger than that of the neck part (3).

8. The tibial plateau posterolateral locking plate of claim 1, wherein: the neck (3) is not provided with a fixing hole (4).

9. The tibial plateau posterolateral locking plate of claim 8, wherein: the neck (3) can adjust the bending degree according to the bone shape.

10. The tibial plateau posterolateral locking plate of claim 1, wherein: the locking bone plate has a surface (51) and a bone-setting surface (52), the bone-setting surface (52) of the head (1) has a spatial geometry matching the posterior-lateral bone surface of the tibial plateau, and the bone-setting surface (52) of the stem (2) has a spatial geometry matching the proximal-posterior lateral bone surface of the tibia.