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Medical Humeral Surgical Neck Fracture Humeral Head Reduction Fixator

A humeral head and surgical neck technology, applied in the field of humeral head reduction fixator for medical humeral surgical neck fractures, to achieve the effects of high repeatability, firm grip and shortening of surgical reduction time

Inactive Publication Date: 2018-11-23
THE AFFILIATED DRUM TOWER HOSPITAL MEDICAL SCHOOL OF NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hollow push rod to hollow push rod shank

Method used

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  • Medical Humeral Surgical Neck Fracture Humeral Head Reduction Fixator

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Such as figure 1 Shown:

[0014] (Holding the humeral head) The middle of the base 2 is hollow, one side of which is connected to the short bone needle 1, the short bone needle 1 is tapered, and 3 or 4 short bone needles 1 are perpendicular to the base 2; the base 2 is connected to the (hollow) The connecting rod 3 is connected, and the other end of the connecting rod 3 is connected to the (hollow) handle 4. The hollow diameter of the base 2, the inner diameter of the connecting rod 3, and the inner diameter of the handle 4 are the same in size, forming a continuous hollow pipe, constituting the humeral head gripper; (Hollow) push rod 5 links to each other with (push rod) handle 6, and push rod 5 and handle 6 also are hollow tube structure, are a whole, constitute humeral head separator; The length of push rod 5 is short bone needle 1, base 2. The sum of the lengths of the connecting rod 3 and the handle 4, the outer diameter of the push rod 5 is smaller than the inner...

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Abstract

The invention relates to a medical humeral head reduction fixer for humeral surgical neck fracture. A plurality of short bone needles are connected to the holding base of the humeral head of the present invention, and the holding base of the humeral head is connected to the hollow handle through a hollow connecting rod. A hollow push rod is connected to a hollow push rod shank. The tip of the long bone needle is threaded and the body is graduated. The invention overcomes the defects of the past surgical treatment of proximal humerus fractures. The present invention can control the rotation of the humeral head in the glenoid of the shoulder, can control its direction in three-dimensional space, and shorten the operation reset time; the reset and temporary fixation of the humeral head in the glenoid of the shoulder can be completed in one step, with extremely high repeatability; After the humeral head is fixed by the long bone pin, the humeral head holder can be separated from the humeral head, leaving only the long bone pin to make room for the reduction of the humeral head and the greater and lesser tuberosities; different shapes of the humeral head holding base are different Fracture morphology offers a variety of options.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical device for resetting and fixing the humeral head of the surgical neck of the humerus. Background technique [0002] Before the present invention, when operative treatment humeral proximal end fracture (humeral surgical neck fracture), humeral head does not have special-purpose temporary reduction and fixation tool. Proximal humeral fractures, especially type III and IV comminuted proximal humeral fractures, the humeral head is separated from the greater tuberosity and the lesser tuberosity, and is in a free state. Since the humeral head is hemispherical at the proximal end of the anatomical neck, it can rotate freely in the glenoid and cannot be grasped, making it very difficult to reset, position, and temporarily fix during surgery. At this time, if there is no suitable tool to hold the humeral head and maintain it in a proper position, the greater tuberosity, the lesser tubercle, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/56A61B17/68A61B17/32
CPCA61B17/32A61B17/683A61B2017/564
Inventor 王骏飞熊进胡可可郑欣仲小霞
Owner THE AFFILIATED DRUM TOWER HOSPITAL MEDICAL SCHOOL OF NANJING UNIV
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