CN218899646U

CN218899646U - Pelvis acetabulum inner wall and tetrahedron bone fracture plate

Info

Publication number: CN218899646U
Application number: CN202221134659.2U
Authority: CN
Inventors: 蔡振存
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-04-25
Anticipated expiration: 2032-05-12

Abstract

The utility model relates to the technical field of orthopedic medical instruments, and particularly discloses a pelvis acetabulum inner wall and tetrahedron bone fracture plate, which comprises a body, a bone fracture plate anterior superior iliac spine, a bone fracture plate hook and a bone fracture plate annular net structure, wherein the bone fracture plate anterior superior iliac spine, the bone fracture plate hook and the bone fracture plate annular net structure are all arranged on the body; through the arrangement of the structure, the body plays a main role in connection, the anterior superior iliac spine of the bone fracture plate points to the anterior superior iliac spine obliquely inwards and upwards from the body, the upper acetabular wall fracture is fixed, the hook part of the bone fracture plate is 3-5 hook structures, the bone fracture plate vertically emits from the body and bends upwards and outwards to run, the hook shape and angle are the same as those of the upper pubic spine, the pubic bone is hooked to the top of the tetrahedron, the annular mesh structure of the bone fracture plate emits from the lower end of the body, the annular mesh structure is designed along the inner wall of the acetabulum, and the size of the ring is consistent with the periphery of the inner wall of the acetabulum, so that the matching performance of the inner wall of the pelvis acetabulum and the tetrahedron bone fracture plate with bones is greatly improved.

Description

Pelvis acetabulum inner wall and tetrahedron bone fracture plate

Technical Field

The utility model relates to the technical field of orthopedic medical instruments, in particular to a pelvis acetabulum inner wall and tetrahedron bone fracture plate.

Background

The pelvis acetabulum fracture causes common major trauma in trauma orthopaedics, and the bone fracture plate is used as a common means for fixing the pelvis acetabulum fracture, because the pelvis acetabulum structure is complex, and the fracture types of each patient are different, the traditional reconstruction bone fracture plate is fixed in a fixing mode mostly according to the experience of doctors, so the clinical level requirement on the doctors is higher.

At present, a model of the pelvis and the acetabulum is manufactured through a 3D printing technology by scanning the pelvis and the acetabulum of a human body, so that doctors have the opportunity of simulation operation before operation, and the success rate of operation and the postoperative recovery effect can be improved.

However, the bone fracture plate in the prior art is temporarily processed and bent during operation, has poor matching with bones, and can cause fracture secondary displacement due to non-ideal bending.

Disclosure of Invention

The utility model aims to provide a pelvis acetabular inner wall and tetrahedron bone fracture plate, and aims to solve the technical problems that the bone fracture plate in the prior art is subjected to temporary processing bending in operation, has poor matching with bones, and can cause secondary displacement of fracture due to non-ideal bending.

In order to achieve the above purpose, the pelvic acetabular inner wall and tetrahedron bone plate adopted by the utility model comprises a body, a bone plate anterior superior iliac spine, a bone plate hook and a bone plate annular net structure, wherein the bone plate anterior superior iliac spine, the bone plate hook and the bone plate annular net structure are all arranged on the body, the bone plate anterior superior iliac spine and the bone plate hook are arranged on the same side of the body, and the bone plate annular net mechanism is arranged on the other side of the body.

The body comprises a main body strip, an ilium end extension strip and a pubic bone end extension strip, wherein the main body strip is fixedly connected with the hook part of the bone fracture plate, the ilium end extension strip is fixedly connected with the main body strip and is positioned at the upper end of the main body strip, and the pubic bone end extension strip is fixedly connected with the main body strip and is positioned at one end of the main body strip far away from the ilium end extension strip.

The bone fracture plate comprises a bone fracture plate body and is characterized in that the anterior superior iliac spine comprises a connecting strip and an anterior superior iliac spine extension strip, the connecting strip is fixedly connected with the main body strip and is positioned at one end of the main body strip away from the pubic bone end extension strip, and the anterior superior iliac spine extension strip is fixedly connected with the connecting strip and is positioned at one end of the connecting strip away from the main body strip.

The annular net structure of the bone fracture plate comprises two bending strips, wherein one ends of the two bending strips are fixedly connected with the main body strip, and the two bending strips are located on one side, away from the connecting strip, of the main body strip.

The bone fracture plate annular net structure further comprises fixing strips, fixing blocks and arc-shaped strips, wherein the fixing strips are fixedly connected with the two bending strips and are located at two ends of the bending strips, which are far away from one ends of the main body strips, the fixing blocks are fixedly connected with the fixing strips and located at one side of the fixing strips, which is far away from one of the bending strips, one end of each arc-shaped strip is fixedly connected with the fixing strips and located at one side of the fixing strips, which is far away from the other one of the bending strips, and one end of each arc-shaped strip, which is far away from the fixing strips, is further fixedly connected with one end of the fixing strips, which is far away from the fixing blocks.

According to the pelvis acetabulum inner wall and tetrahedron bone plate, the pelvis acetabulum inner wall and the tetrahedron bone plate can be completely matched with bones according to the bone design of a patient, the body part plays a main role in connection, the front upper iliac spine of the bone plate points to the front upper iliac spine from the body part obliquely inwards and upwards, the upper acetabular wall bone fracture is fixed, the bone plate hook part is in 3-5 hook structures, vertically emitted from the body part, upwards and outwards bends and runs, the hook shape and angle are the same as those of the upper pubic spine, the pubic bone is hooked to the top of the tetrahedron, the annular net structure of the bone plate is emitted from the lower end of the body part, the annular net structure is designed along the inner acetabular wall, and the size of the ring is consistent with the periphery of the inner acetabular wall, so that the matching of the pelvis acetabular inner wall and the tetrahedron bone plate with bones is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the structure of the pelvic acetabular inner wall and tetrahedral bone plate of the utility model.

Fig. 2 is a perspective view of the inner wall of the pelvic acetabulum and tetrahedral bone plate of the present utility model.

Fig. 3 is a schematic view of the structure of the inner wall of the acetabulum and tetrahedral bone plate of the present utility model after deployment.

1-body part, 2-bone plate anterior superior iliac spine, 3-bone plate hook part, 4-bone plate annular net structure, 5-main body strip, 6-ilium end extension strip, 7-pubic bone end extension strip, 8-connecting strip, 9-anterior superior iliac spine extension strip, 10-bending strip, 11-fixing strip, 12-fixing block and 13-arc strip.

Detailed Description

The following detailed description of embodiments of the utility model, examples of which are illustrated in the accompanying drawings and, by way of example, are intended to be illustrative, and not to be construed as limiting, of the utility model.

Referring to fig. 1 to 3, the present utility model provides a pelvic acetabular inner wall and tetrahedral bone plate, comprising a body 1, a bone plate anterior superior iliac spine 2, a bone plate hook 3 and a bone plate annular net structure 4, wherein the bone plate anterior superior iliac spine 2, the bone plate hook 3 and the bone plate annular net structure 4 are all disposed on the body 1, the bone plate anterior superior iliac spine 2 and the bone plate hook 3 are disposed on the same side of the body 1, and the bone plate annular net structure is disposed on the other side of the body 1.

In this embodiment, the pelvic inner wall and tetrahedron bone plate may be an individual bone plate that is completely matched with the bone according to the bone design of the patient, the body 1 plays a main role in connection, the anterior superior iliac spine 2 of the bone plate points obliquely upward from the body 1 to the anterior superior iliac spine, the upper acetabular wall fracture is fixed, the hook 3 of the bone plate has 3-5 hook structures, and is vertically sent out from the body 1, and is bent upward and outward, the hook shape and angle are the same as the form of the suprapubic spine, and hooks the pubic bone to the top of the tetrahedron, the annular mesh structure 4 of the bone plate is sent out from the lower end of the body 1, and is designed into an annular mesh structure along the inner acetabular wall, and the size of the ring is consistent with the periphery of the inner acetabular wall, so that the matching of the pelvic inner acetabular wall and the tetrahedron bone plate with the bone is greatly improved.

Further, the body 1 includes a main body strip 5, an ilium end extension strip 6 and a pubic bone end extension strip 7, the main body strip 5 is fixedly connected with the bone plate hook 3, the ilium end extension strip 6 is fixedly connected with the main body strip 5 and is located at the upper end of the main body strip 5, and the pubic bone end extension strip 7 is fixedly connected with the main body strip 5 and is located at one end of the main body strip 5 away from the ilium end extension strip 6.

In this embodiment, the main body strip 5 plays a main role in connection, the whole body is in a strip arc shape, the radian and the length are consistent with the shape of the pelvic inlet of the acetabulum, the width is 1-1.5 cm, the thickness is 0.5 cm, 4-6 screw holes are designed on the ilium end extension strip 6 according to the fracture part, the longest ilium end extension strip 6 can extend to the sacroiliac joint, two screw holes are designed on the pubis end extension strip 7, the screw holes are of a locking type, a 3.5 mm locking screw is used, the screw hole direction on the pubis end extension strip 7 points to the pubis and pubis joint, the screw hole direction on the ilium end extension strip 6 points to the ischial tuberosity or the sacroiliac joint, and the fixed locking screw forms a locking device, so that the screw and the bone plate become a whole, and the fixed fracture is firmer.

Further, the anterior superior iliac spine 2 of the bone plate comprises a connecting strip 8 and an anterior superior iliac spine extension strip 9, the connecting strip 8 is fixedly connected with the main body strip 5 and is positioned at one end of the main body strip 5 away from the pubic bone end extension strip 7, and the anterior superior iliac spine extension strip 9 is fixedly connected with the connecting strip 8 and is positioned at one end of the connecting strip 8 away from the main body strip 5.

In this embodiment, the connecting strip 8 points obliquely inward and upward from the main body strip 5 to the anterior superior iliac spine, one end of the connecting strip 8 away from the main body strip 5 is connected with an anterior superior iliac spine extension strip 9, the anterior superior iliac spine extension strip 9 can be extended to a required position according to a fracture part, the longest can be extended to the anterior superior iliac spine, and 1-5 screw holes are designed on the anterior superior iliac spine extension strip 9, which are all locking nail holes, thereby being beneficial to screw stabilization and fixation of the fracture of the superior acetabular wall.

Further, the annular net structure 4 of the bone plate comprises two bending strips 10, and one ends of the two bending strips 10 are fixedly connected with the main body strip 5 and are positioned on one side of the main body strip 5 away from the connecting strip 8; the annular net structure 4 of the bone fracture plate further comprises fixing strips 11, fixing blocks 12 and arc-shaped strips 13, wherein the fixing strips 11 are fixedly connected with the two bending strips 10 and are located at one end of the two bending strips 10 away from the main body strip 5, the fixing blocks 12 are fixedly connected with the fixing strips 11 and located at one side, away from one of the fixing strips 11, of the bending strips 10, one end of each arc-shaped strip 13 is fixedly connected with the fixing strip 11 and located at one side, away from the other bending strip 10, of the fixing strip 11, and one end, away from the fixing strip 11, of each arc-shaped strip 13 is fixedly connected with one end, away from the fixing strip 11, of the fixing block 12.

In this embodiment, two bending strips 10 are all sent from the lower end of the main body strip 5, the thickness width of the two bending strips 10 is the same as that of the main body 1, so as to maintain strength, one end of the two bending strips 10 away from the main body strip 5 is connected with a fixing strip 11, the fixing strip 11, a fixing block 12 and an arc strip 13 are designed into an annular net structure along the inner wall of the acetabulum, the size of the replacement is consistent with the periphery of the inner wall of the acetabulum, screw holes are designed on the fixing strip 11 according to the fracture position, screws of the through hole screw holes can avoid broken lines and are designed into locking type, the fixing of screw stability and fracture is facilitated, and strip universal sliding pressurizing screw holes are designed on the fixing block 12, so that the pressurizing screws can be conveniently used for sliding and pressurizing, and simultaneously, the directions of the screws can be adjusted, the screws are prevented from entering the acetabulum, and the fixing block 12 is fixed below the pubic bone.

The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.

Claims

1. A pelvis acetabulum inner wall and tetrahedron bone fracture plate is characterized in that,

the bone fracture plate comprises a body, a bone fracture plate front upper spine, a bone fracture plate hook and a bone fracture plate annular net structure, wherein the bone fracture plate front upper spine, the bone fracture plate hook and the bone fracture plate annular net structure are arranged on the body, the bone fracture plate front upper spine and the bone fracture plate hook are arranged on the same side of the body, and the bone fracture plate annular net structure is arranged on the other side of the body.

2. The pelvic inner acetabular wall and tetrahedral bone plate of claim 1,

the body comprises a main body strip, an ilium end extension strip and a pubic bone end extension strip, wherein the main body strip is fixedly connected with the hook part of the bone fracture plate, the ilium end extension strip is fixedly connected with the main body strip and is positioned at the upper end of the main body strip, and the pubic bone end extension strip is fixedly connected with the main body strip and is positioned at one end of the main body strip away from the ilium end extension strip.

3. The pelvic inner acetabular wall and tetrahedral bone plate of claim 2,

the anterior superior iliac spine of the bone plate comprises a connecting strip and an anterior superior iliac spine extension strip, the connecting strip is fixedly connected with the main body strip and is positioned at one end of the main body strip away from the pubic bone extension strip, and the anterior superior iliac spine extension strip is fixedly connected with the connecting strip and is positioned at one end of the connecting strip away from the main body strip.

4. The pelvic inner acetabular wall and tetrahedral bone plate of claim 3,

the annular net structure of the bone fracture plate comprises two bending strips, wherein one ends of the two bending strips are fixedly connected with the main body strip and are located on one side, far away from the connecting strip, of the main body strip.

5. The pelvic inner acetabular wall and tetrahedral bone plate of claim 4,

the annular reticular structure of the bone fracture plate further comprises fixing strips, fixing blocks and arc-shaped strips, wherein the fixing strips are fixedly connected with two bending strips and are located at two positions, away from one end of the main body strip, of the bending strips, the fixing blocks are fixedly connected with the fixing strips and located at one side, away from one of the bending strips, of the fixing strips, one end of the arc-shaped strips is fixedly connected with the fixing strips and located at one side, away from the other side, of the bending strips, and one end, away from the fixing strips, of the arc-shaped strips is further fixedly connected with one end, away from the fixing strips, of the fixing blocks.