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Bone fracture plate for ulna and radius shaft

A bone plate and backbone technology, applied in the field of medical devices, can solve the problems that it is not easy to determine the diameter of the screw path just in the bone section, increase the forearm compartment syndrome, and the low stress demand of the ulna and radius, etc., to achieve the benefit of screw double Double cortex fixation, beneficial to double cortex fixation, and the effect of reducing the probability of complications

Inactive Publication Date: 2021-08-03
SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few bone plates specifically used for diaphyseal fractures of the ulna and radius. Most of the bone plates used in clinical ulna and radius fractures are the smaller models of the general-purpose LCP straight bone plate and the metaphyseal plate.
[0003] However, the general-purpose LCP straight bone plate and metaphyseal bone plate have the following disadvantages in the fixation of radial and ulnar shaft fractures: LCP straight bone plate is widely applicable to long bone diaphysis fractures. The width-to-length ratio of the LCP straight bone plate is larger than that of the radius and ulna, which is most suitable for the bone plate. In clinical applications, the bone plate is too wide relative to the bone, and it is not easy to determine that the screw path is exactly on the diameter of the bone section, which is not conducive to double cortex. It is fixed, and the two ends of the bone plate are easier to tilt; the LCP straight bone plate design will be thicker, while the stress demand of the radius and ulna is relatively low, and the complex muscles rarely found in the body are attached to the radius and ulna, so the thickness of the bone plate is higher. Wide, there is a volume effect after being placed in the body, which will increase the probability of forearm compartment syndrome; the anatomical characteristics of the ulna and radius are not only smaller, but their backbones also have more curved curvatures. The existing LCP straight bone graft The design of the plate cannot cope with this kind of arc change; and the metaphyseal plate is only suitable for diaphyseal fractures near the joint

Method used

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  • Bone fracture plate for ulna and radius shaft
  • Bone fracture plate for ulna and radius shaft
  • Bone fracture plate for ulna and radius shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as Figure 1-Figure 4 A radial and ulna bone bone plate shown includes a bone plate body 1, the bone plate body 1 is in the shape of a strip, with a length of 6-20 cm, a width of 1-1.2 cm, and a thickness of 2.0-3.0 mm. The cross-section of the bone plate body 1 is an arc-shaped surface, and the two sides are curved toward the middle. The plate body 1 is divided into a proximal joint section 4, a middle section 5 and a distal joint section 6. The distal joint section 6 is provided with a distal Kirschner wire hole 7, a distal locking hole 8 and a sliding hole 9 in sequence. The end Kirschner wire holes 7 are located at the end of the distal joint section 6, and the middle section 5 is provided with a plurality of intermediate locking holes 10, and intermediate Kirschner wire holes 11 are arranged between adjacent intermediate locking holes 10, and the proximal A plurality of proximal locking holes 12 and proximal upper Kirschner wire holes 13 are opened on the joi...

Embodiment 2

[0021] Such as Figure 1-Figure 4 A bone plate for the ulnar and radial shafts shown includes a bone plate body 1, the bone plate body 1 is elongated, and the edge is a smooth arc surface structure, which reduces the stimulation of the bone plate body 1 to the surrounding soft tissue. The body 1 has a length of 6-20cm, a width of 1-1.2cm, and a thickness of 2.0-3.0mm. The end is a shuttle-shaped structure 2, the end surface of the shuttle-shaped structure 2 is a smooth arc 3, the bone plate body 1 is divided into a proximal joint segment 4, a middle segment 5 and a distal joint segment 6, the bone plate body 1 There are multiple arc-shaped grooves 15 on the back, and the arc-shaped grooves 15 are symmetrically distributed on both sides of the middle section 5, so as to reduce the compression of the bone plate body 1 on the periosteum without affecting the strength of the bone plate body 1. To avoid damage to the blood supply, the distal joint segment 6 is sequentially provide...

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Abstract

The invention discloses a bone fracture plate for an ulna and radius shaft. Thebone fracture plate comprises a bone fracture plate body, the bone fracture plate body is in a long strip shape, the section of the bone fracture plate body is an arc-shaped face, the two ends of the bone fracture plate body are of fusiform structures, the end faces of the fusiform structures are in a smooth arc shape, and the bone fracture plate body is divided into a near joint section, a middle section and a far joint section. A far-end kirschner wire hole, a far-end locking hole and a sliding hole are sequentially formed in the far joint section, the far-end kirschner wire hole is located in the end of the far joint section, a plurality of middle locking holes are formed in the middle section, middle kirschner wire holes are formed between the adjacent middle locking holes, a plurality of near-end locking holes and near-end upper kirschner wire holes are formed in the near joint section, the near-end locking holes and the near-end upper kirschner wire holes are sequentially and alternately arranged along the near-joint section, and near-end lower kirschner wire holes are formed in the end of the near-joint section. The bone fracture plate is more suitable for the width-to-thickness ratio of the ulna and the radius, double-layer cortex fixation of the screw is facilitated, and the probability of complications is reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a radial and ulna shaft bone plate. Background technique [0002] Radial and ulnar shaft fractures are often caused by severe violent trauma, especially falls from heights and serious traffic accidents. It may also be caused by a sudden fall during strenuous exercise, resulting in fractures. After a fracture, the continuity and integrity of the local bone is destroyed, causing local obvious pain, swelling and dysfunction. In severe cases, aggressive surgical treatment is required. The surgical method is mainly open reduction and internal fixation with plate screws. However, there are few bone plates specifically used for diaphysis fractures of the radius and ulna. Most of the bone plates used in clinical fractures of the radius and ulna are smaller models of the general-purpose LCP straight plate and metaphyseal plates. [0003] However, the general-purpose LCP str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8061A61B17/808
Inventor 刘立峰周明旺乔文泽李俊廷曹云飞
Owner SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE
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