Lisfranc injury cross-joint locking bone fracture plate

A bone plate and joint technology, applied in the field of medical devices, can solve problems such as instability and shaking

Active Publication Date: 2021-04-09
MEI HOSPITAL UNIV OF CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in order to fix fractures and osteotomy parts and promote bone healing and bone union, osteosynthesis plates with bone plates and screws for fixing the bone plates to bones are used for treatment. The fixed surface angles are different, so there are screw holes corresponding to the vertical angle of the bone contact surface in the bone plate, such as figure 1 As shown, screw a is penetrated through the screw hole b, an

Method used

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  • Lisfranc injury cross-joint locking bone fracture plate
  • Lisfranc injury cross-joint locking bone fracture plate
  • Lisfranc injury cross-joint locking bone fracture plate

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] see Figure 1-9 , a Lisfranc lesion trans-articular locking bone plate in the illustration, including a trans-articular bone plate 1 and a stabilizing mechanism 4, a plurality of locking holes 2 are opened on the trans-articular bone plate 1, and the trans-articular bone plate 1 corresponds to The position of the locking hole 2 is opened with a limit ring groove 3, and the shape of the limit ring groove 3 is elliptical, which plays a limit effect. The s...

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Abstract

The invention discloses a Lisfranc injury cross-joint locking bone fracture plate. The Lisfranc injury cross-joint locking bone fracture plate comprises a cross-joint bone fracture plate body and a stabilizing mechanism, a plurality of locking holes are formed in the cross-joint bone fracture plate body, limiting ring grooves are formed in the positions, corresponding to the locking holes, of the cross-joint bone fracture plate body, and the stabilizing mechanism used for stably and accurately nailing screws is inserted into the corresponding limiting ring grooves. The limiting ring grooves are formed in the outer side of each locking hole, the stabilizing mechanism with the adjusted angle is inserted into the corresponding limiting ring grooves, so that the follow-up nailing angle of the screws is more accurate, the problem that the screw shakes when inserted due to the fact that the inner diameter of each locking hole is larger than the diameter of the body parts of the screws is solved, and accurate fixing is achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a Lisfranc lesion cross-joint locking bone plate. Background technique [0002] Lisfranc injury refers to the fracture and dislocation between the metatarsal bone and the appendage of the foot. It is a common injury in the foot. Improper treatment can lead to the destruction of the biomechanical stability of the foot, resulting in traumatic arthritis, metatarsalgia and other complications. Clinically, Lisfranc injuries are more common in the first and second metatarsal joints. There are many methods for treating Lisfranc injuries, but there is still a lack of a method that comprehensively considers multiple bony structures and ligamentous structure injuries while stabilizing the first and second metatarsal ranks. internal fixation device. [0003] At present, in order to fix fractures and osteotomy parts and promote bone healing and bone union, bone plate with bone plate...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/8061A61B17/808
Inventor 余霄陈大伟庞清江陈先军石林王诚浩宋蒙胜戎鹏泽
Owner MEI HOSPITAL UNIV OF CHINESE ACAD OF SCI
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