Stealth blade for treating aseptic caput femoris necrosis

A femoral head necrosis and sterility technology, which is applied in the field of medical devices, can solve the problem that the excision of the resected object cannot be guaranteed, and achieve the effect of improving work efficiency and operating comfort

Active Publication Date: 2011-05-04
SHANGHAI BIO LU BIOMATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The incisions of the two blades of the femoral head sneak expansion decompressor are linear, and the linear incision limits the angle and section between the blade and the resected object, so that the complete resection of the resected object cannot be guaranteed.

Method used

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  • Stealth blade for treating aseptic caput femoris necrosis
  • Stealth blade for treating aseptic caput femoris necrosis
  • Stealth blade for treating aseptic caput femoris necrosis

Examples

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Embodiment Construction

[0019] The following will combine Figure 1 ~ Figure 3 The submerged scraper for treating aseptic femoral head necrosis of the present invention is further described in detail.

[0020] When using the femoral head sneak enlarged decompressor to remove sequestrum, first open a tunnel hole directly to the femoral head at the greater trochanter of the femoral head, and then extend the front end (the end containing the blade) of the femoral head sneak enlarged decompressor into the In the tunnel hole, with the cooperation of X-ray or other fluoroscopy equipment, while adjusting the angle between the two blades of the femoral head sneak expansion pressure reducer, the femoral head sneak expansion pressure reducer is rotated, and the sequestrum is gradually removed. Since the inner wall of the tunnel hole and the inner wall of the femoral head are arc-shaped, it is difficult for the linear incision to completely fit the inner wall of the tunnel hole and the inner wall of the femoral...

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Abstract

The invention relates to a stealth blade for treating aseptic caput femoris necrosis, comprising a hollow pipe, a beam, a spiral mechanism and two blades. The beam is arranged on the outer wall of the hollow pipe, one end of the spiral mechanism is inserted in the hollow pipe, the two blades have cambered notches and are articulated, one end of one blade is in rotating connection with one end of the spiral mechanism inserting into the hollow pipe, one end of the other blade is connected with the hollow pipe, and the spiral mechanism moving along the axis direction of the hollow pipe drives the two blades to move, changes an included angle between the two blades and further changes the cleared diameter. In the stealth blade for treating aseptic caput femoris necrosis, the two blades have the cambered notches which can be fully attached to the inner wall of a tunnel hole and the inner wall of caput femoris so as to cleanly clear dead bones once and improve the working efficiency of the stealth blade for treating aseptic caput femoris necrosis.

Description

technical field [0001] The invention relates to medical equipment, in particular to a submerged scraper for treating aseptic femoral head necrosis. Background technique [0002] The main pathology of femoral head necrosis is the head bone ischemia caused by the blockage of blood supply to the femoral head and damage, which is easy to occur in people aged 31-60. Core decompression is a surgical treatment method for early necrosis of the femoral head, and the stealth scraper for the treatment of aseptic necrosis of the femoral head is a medical device often used in core decompression surgery. The stealth curette for the treatment of aseptic necrosis of the femoral head is used to remove the sequestrum. [0003] Chinese patent CN 2469895 Y discloses a "femoral head submerged expansion pressure reducer", which includes a propulsion hollow shaft, a through hole is arranged at the front end of the propulsion hollow shaft, and two blades are hinged in the through hole. A slide ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/56A61B17/32
Inventor 夏军王思群马金东卢建熙
Owner SHANGHAI BIO LU BIOMATERIALS
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