Pull blade for orthopedic surgery

An orthopaedic surgery and tension technique, applied in surgery, medical science, anatomical instruments, etc., can solve the problems of peripheral nerve shock, lack of guidance, bone fragmentation and other problems, and achieve the effects of alleviating pain, preventing shock, and reducing impact resistance.

Inactive Publication Date: 2014-03-26
周玉梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the commonly used hammering section of the blade is generally a cylinder with insufficient guidance, when the blade hammers into the femoral head, the resistance is relatively large, which is likely to cause the shock of peripheral nerves and the dissociation of blood vessels and bone fragments, which will bring unfavorable factors to wound healing.

Method used

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  • Pull blade for orthopedic surgery

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Embodiment Construction

[0011] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0012] Such as figure 1 The tension blade used in orthopedic surgery includes a helical knife segment 1 and a cylindrical hammering segment 2 with an integrated structure, and the transition between the helical knife segment 1 and the cylindrical hammering segment 2 is through a circular arc, and the helical knife segment 1 The helix angle is 25°, the head of the helical knife segment 1 has three blade edges 3, and the rear angle of the blade edge 3 is 22°, and the helix angle and the rear angle can be designed according to the bone density of different patients Serialized, easy to adjust and choose the right angle.

[0013] Six axial guide grooves 4 are eve...

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Abstract

The invention discloses a pull blade for orthopedic surgery. The pull blade for the orthopedic surgery comprises a spiral blade section and a cylinder hammering section, wherein the spiral blade section and the cylinder hammering section are of an integrated structure. The pull blade for the orthopedic surgery is characterized in that a helical angle of the spiral blade section is 25 degrees, a blade edge is arranged on the head of the spiral blade section, a relief angle of the blade edge is 22 degrees, and at least three axial guide grooves are evenly formed in the cylinder hammering section in the circumferential direction. According to the pull blade for the orthopedic surgery, due to the fact that the axial guide grooves are formed in the cylinder hammering section in the circumferential direction, certain impact resistance can be reduced by means of the function of the axial guide grooves when the blade is hammered, the blade can faster pass through the neck of the femur to reach the head of the femur conveniently, shock of the peripheral nerves of wounded bones and drifting of the blood vessels and fragment bones can be prevented, wound healing can be accelerated, and the pain of patients can be relieved.

Description

technical field [0001] The invention relates to a tension blade used in orthopedic surgery. Background technique [0002] In the current orthopedic surgery, the intramedullary nail system is used for the pulling blade of the femoral neck, relying on the helical part with a cutting edge on the head, entering the femoral neck to the femoral head by hammering, and entering the damaged bone of the patient. Because the commonly used hammering section of the blade is generally a cylinder with insufficient guidance, when the blade hammers into the femoral head, the resistance is relatively large, which is likely to cause the shock of peripheral nerves and the dissociation of blood vessels and bone fragments, which will bring unfavorable factors to wound healing. . Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pulling blade for orthopedic surgery with better guiding an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3209A61B17/16
CPCA61B17/3209A61B17/16
Inventor 周玉梅
Owner 周玉梅
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