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Bone traction needle setting sight device

An aimer and bone traction technology, applied in the field of medical devices, can solve the problems of angle deviation, affecting the traction effect of the lower limbs, etc., to achieve the effects of improving accuracy, reducing iatrogenic bone damage, and restoring the backbone force line

Inactive Publication Date: 2018-07-27
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a bone traction needle aimer to solve the traditional problem that the angle deviation caused by human eyes judging the direction of needle placement affects the effect of lower limb traction

Method used

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  • Bone traction needle setting sight device

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0010] Such as figure 1 A schematic diagram of the structure of the bone distraction needle aimer is shown. It includes a pair of split-type fixation components 1 for fixing bones. The lower ends of the pair of fixation components 1 are provided with a telescopic structure composed of two stable sliding rods 2 and a screw 3 that penetrates the component. The telescopic structure separates the pair of relatively independent The fixing components 1 are connected together, and the width of the opening between the traction components 1 can be adjusted by sliding the screws 3; the outer sides of the upper ends of a pair of fixing components 1 are provided with threaded hole passages on the same horizontal plane for the passage of the Si-style needles , one side channel is the needle entry point, one side channel is the needle exit point, the thread...

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Abstract

The invention relates to a bone traction needle setting sight device comprising a pair of split-type fixing assemblies; telescopic structures are arranged at lower ends of the fixing assemblies; the telescopic structure is formed by two stabilization sliding rods and a penetrating fixing assembly; screwed holes which are positioned at the same horizontal plane and for the passing through of Steinmann pin opened at an outer side of the upper end of the pair of fixing assemblies; hollow bolts are installed on the screwed holes. The present invention ensures accurate positioning of the Steinmannpin and can adjust the width of the opening of the assembly with the human bone. The device helps improve the effect of bone traction, restore the backbone force line, improve the accuracy of clinicaloperation, reduce iatrogenic bone damage; the device has simple structure and is easy to use.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a bone traction needle aimer. Background technique [0002] Lower extremity fractures (acetabular fractures, femoral fractures, tibial fractures, ankle fractures, etc.) are often accompanied by skin and soft tissue injuries (abrasions or tension blisters, etc.), and elective surgical treatment is required when skin conditions permit. In order to achieve initial reduction of the fractured end, prevent shortening of the lower limbs, neurovascular injury, and reduce soft tissue swelling, bone traction treatment of the lower limbs is required first. Bone traction is divided into: calcaneal traction, tibial tuberosity traction and femoral supracondylar traction. All kinds of traction need to place a needle of appropriate size at a specific position vertical to the axis of the lower limbs and horizontally. However, in the course of clinical operation, human eyes are used to judge th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 苏云王峰孟祥俊董新利
Owner DALIAN UNIV
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