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Subtalar joint brake and using method thereof

A subtalar joint and brake technology, which is applied in the field of subtalar joint brakes, can solve the problems of talar neck fracture screws, fractures, uneven stress distribution, etc., and achieve the effect of avoiding pain

Pending Publication Date: 2021-07-16
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the irregular shape of the tarsal sinus, none of the prostheses currently on the market can match, resulting in postoperative dislocation, pain caused by uneven stress distribution, and even talar neck fracture or screw breakage

Method used

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  • Subtalar joint brake and using method thereof
  • Subtalar joint brake and using method thereof
  • Subtalar joint brake and using method thereof

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be described below in conjunction with the drawings and embodiments.

[0019]

[0020] This embodiment provides a subtalar joint brake and its use method. The subtalar joint brake is surgically installed on the user's subtalar joint to correct flexible flat foot deformity. After installation, the contact area with the articular surface is increased, and the user's pain condition.

[0021] figure 1 It is a structural schematic diagram of the subtalar joint brake of the embodiment of the present invention.

[0022] The subtalar joint brake 100 is columnar, such as figure 1 As shown, it includes the front resistance section 1, the middle resistance section 2 and the internal resistance section 3 arranged in sequence along the axis.

[0023] The cross sections of the front resistance section 1 , the middle resistance section 2 and the internal resistance section 3 are all circular.

[0024] The subtalar...

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PUM

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Abstract

The invention provides a subtalar joint brake, and belongs to the field of orthopedic implants. The subtalar joint brake is mounted on a subtalar joint of a user through an operation, and is characterized in that the subtalar joint brake comprises a front resistance section, a middle resistance section and an inner resistance section which are arranged in sequence, and the sections of the front resistance section, the middle resistance section and the inner resistance section are circular; the diameter of the section of the front resistance section is increased and then decreased in the axis direction, the range of the change difference value of the diameter of the section of the middle resistance section in the axis direction is 0-3 / 500 of the overall length of the subtalar joint brake, and the diameter of the section of the inner resistance section is gradually decreased in the direction away from the middle resistance section; and the length of the front resistance section is 1 / 2 of the overall length of the subtalar joint brake, the length of the middle resistance section is 1 / 4 of the overall length of the subtalar joint brake, and the length of the inner resistance section is 1 / 4 of the overall length of the subtalar joint brake.

Description

technical field [0001] The invention belongs to the field of orthopedic internal implants, and in particular relates to a subtalar joint brake for correcting flexible flatfoot deformity and a use method thereof. Background technique [0002] Flexible flatfoot occurs in 5% of children and adults, and its main pathological feature is the collapse of the arch caused by excessive valgus of the subtalar joint, causing foot pain and fatigue after walking. Subtalar brake surgery refers to placing a subtalar joint brake in the tarsal sinus to limit excessive valgus of the subtalar joint. It is a minimally invasive surgery widely used at present. [0003] At present, the widely used subtalar brakes are mainly divided into two types: wedge-shaped self-locking type and calcaneal blocking type, among which the wedge-shaped self-locking type is the most widely used. According to the design shape, it is mainly divided into cylindrical (MBA prosthesis), conical ( Talar-Fit prosthesis) and...

Claims

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Application Information

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IPC IPC(8): A61B17/56
CPCA61B17/56A61B2017/564
Inventor 陈立楚鹏飞王森朱云超熊怒蔡黎明马昕
Owner FUDAN UNIV