Three-dimension-extending intramedullary nail

A medical device and bone marrow technology, applied in the field of intramedullary nailing medical devices, can solve problems such as limited opening angle, limited fixation effect, and excessive injury to patients, and achieve the effects of improving support stability, increasing fixation efficacy, and reducing manufacturing costs
CN102727293AInactive Publication Date: 2012-10-17METAL INDS RES & DEV CENT +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
METAL INDS RES & DEV CENT
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A three-dimension-extending intramedullary nail, which is made of memory metal, comprises a rod-shaped body, two distal ends formed at two ends of the rod-shaped body, and a plurality of bent portions on the rod-shaped body and between the two distal ends. Each of the bent portions is bent around a curve center and defines a reference plane whereon the bent portion and the curve center are disposed, and at least two of the reference planes of the bent portions are different. The three-dimension-extending intramedullary nail can be implanted into marrow cavity in one time and is applicable to the treatment of various fracture patients. In addition, the three-dimension-extending intramedullary nail is flexible and can be bent according to the curvature of the marrow cavity, thereby being applicable to the marrow cavity of different length. Moreover, the three-dimension-extending intramedullary nail can also form axial deformation to apply pressure upon fracture surface, thus to pull and pressure the fracture surface and promote bone regeneration and shorten fracture healing time.
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Description

technical field

[0001] The invention relates to the technical field of intramedullary nail medical equipment, in particular to a medical equipment with a three-dimensional fixed pressure memory intramedullary nail, which is used for treating long bone fractures and can increase the fixation effect on fractures. Background technique

[0002] The general medical method used to treat long bone fractures is to implant an intramedullary nail in the bone marrow cavity to fix the bone at the fracture site, compress the broken surface of the bone, regenerate the bone and shorten the healing time.

[0003] Please refer to Figure 1a to Figure 1c , which is an existing intramedullary nail 9 disclosed in the patent case of "Fork Self-propelled Intramedullary Nail" in Taiwan Announcement No. 578541. like Figure 1a As shown, the intramedullary nail 9 is a rod body, one end of which is provided with several fork rods 91 extending in different directions and showing an open shape, and th...

Claims

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