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Three-dimensional femoral stem and manufacturing method

A femoral stem, three-dimensional technology, applied in the direction of femoral head, femoral shaft, additive manufacturing, etc., can solve the problems of femoral stem survival rate, central dislocation, loosening, etc.

Pending Publication Date: 2021-03-12
JINGWEI MEDICAL EQUIP MFG SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Long-term loosening leads to central dislocation in many patients due to excessive bone loss, which affects the survival rate of the femoral stem; and if the patient needs revision due to bone resorption, the standard femoral stem can no longer meet the matching requirements

Method used

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  • Three-dimensional femoral stem and manufacturing method
  • Three-dimensional femoral stem and manufacturing method
  • Three-dimensional femoral stem and manufacturing method

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Embodiment Construction

[0029] In order to make the purpose, features and advantages of the present application more obvious and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0030] It should be noted that, in any embodiment of the present invention, a three-dimensional femoral stem is used to replace part of the implant of the patient's femur in hip joint replacement surgery.

[0031] refer to figure 1 , shows a schematic structural view of a three-dimensional femoral stem provided by an embodiment of the present application, specifically including the following structure: a...

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Abstract

The embodiment of the invention provides a three-dimensional femoral stem and a manufacturing method, and the three-dimensional femoral stem comprises a stem body and an outer housing sleeving the stem body, and the stem body is fixedly connected with the outer housing; the stem body comprises a femoral cone, a femoral neck, a femoral stem shoulder and a femoral stem far end. One end of the femoral stem shoulder is connected with the femoral stem far end, and the other end of the femoral stem shoulder is connected with the femoral neck. One end, far away from the femoral stem shoulder part, ofthe femoral neck is connected with the femoral cone; the outer housing is of a hollow annular structure, the shape of the inner side of the outer housing is matched with the shape of the femoral stemshoulder, and the shape of the outer side of the outer housing is matched with the shape of the side of the thighbone of the patient. Through the three-dimensional printed outer housing, the outer housing is matched with the thighbone side of the patient, and more high-quality bone mass is reduced and removed. The central dislocation caused by long-term looseness of the patient due to excessive bone mass loss is prevented, the survival rate of the prosthesis is improved, and the matching degree is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a three-dimensional femoral stem and a manufacturing method. Background technique [0002] In recent years, with the acceleration of the population aging process, the number of hip joint patients has continued to increase, with an annual growth rate of 20%. Artificial hip replacement has become an effective treatment for many end-stage hip joint patients. Through hip replacement, It can solve patients' pain, difficulty in movement and various complications, such as deep vein thrombosis, pneumonitis and decubitus and other high-risk diseases, and restore the functions of the patient's hip joints, effectively improving the quality of life. When the hip joint creates a hip, the cartilage is no longer smooth, the synovial bursa becomes inflamed and shrinks, and the joint can no longer function as well as it normally does. In the medical field, artificial hip replacement is w...

Claims

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Application Information

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IPC IPC(8): A61F2/36A61F2/30
CPCA61F2/3662A61F2/3609A61F2/367A61F2/3676A61F2/30942A61F2002/3625A61F2002/3652A61F2002/30985A61F2002/30948
Inventor 吴栋
Owner JINGWEI MEDICAL EQUIP MFG SHENZHEN CO LTD
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