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Acetabular cup mold testing device

An acetabular cup and mold trial technology, applied in the acetabular socket, hip joint, medical science and other directions, can solve the problems affecting the service life of the hip joint prosthesis, whether the trial mold and the acetabular socket fit tightly, the acetabular cup It cannot guarantee the tight fit of the acetabular fossa, so as to achieve the effect of good promotion and use value

Active Publication Date: 2020-09-15
陈淑梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, in view of the prior art, when the acetabular cup trial mold is placed during total hip replacement surgery, it is impossible to determine whether the trial mold fits closely with the acetabular socket, resulting in The actual installed acetabular cup cannot guarantee a tight fit with the acetabular socket, which affects the service life of the hip prosthesis

Method used

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  • Acetabular cup mold testing device
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  • Acetabular cup mold testing device

Examples

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Embodiment Construction

[0029] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0030] figure 1 It is a schematic diagram of the structure of the acetabular cup trial mold in the prior art, including two parts, the nearly hemispherical trial mold body and the insertion rod. The insertion rod is usually replaced by the file of the acetabular reamer, which is inserted one by one through the trial molds of different sizes. In the acetabular socket, look for the right acetabular cup. The disadvantage of this method of selecting the acetabular cup by the trial model is that it is impossible to know whether the trial model fits closely with the acetabular socket, and cannot provide a basis for grinding the acetabulum.

[0031] Figure 2 to Figure 8 Is the schematic diagram of the acetabular cup trial mold of the present embodiment.

[0032] The acetabular cup trial model provided in this embodiment has been improved in both the cup body and ...

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Abstract

The invention discloses an acetabular cup mold testing device, and belongs to the technical field of orthopedic surgery auxiliary instruments. The device comprises a cup body and a rod body, wherein the cup body comprises a hemispherical shell; an insertion hole is formed in the middle of the bottom surface of the hemispherical shell; the cup body further comprises a rack device, a gear device, arotating device and a ball head. A ball head groove is formed in one large arc edge of the hemispherical shell; the ball head is clamped in the ball head groove and exposed out of the surface of the hemispherical shell, the gear device is connected with the rotating device and the rack device, the rotating device is connected with the ball head, the rod body is inserted into the insertion hole topush the rack device, the rack device is used for driving the gear device to rotate, and the gear device drives the ball head to swing in the ball head groove through the rotating device. According tothe device, the effect of the total hip replacement surgery can be improved, and the probability of secondary surgery repair of the total hip replacement surgery is reduced.

Description

technical field [0001] The invention specifically relates to an acetabular cup mold testing device, which belongs to the technical field of orthopedic surgery auxiliary instruments. Background technique [0002] Total hip replacement surgery is a surgery that replaces prostheses on one side of the acetabulum and one side of the femoral head to reconstruct a hip joint to restore some body functions of the patient. With the advancement of prosthetic materials and manufacturing technology, total hip replacement surgery has become more and more widely used, and hospitals above the second level basically have the ability of this kind of surgery. [0003] In clinical practice, after a few years of total hip replacement surgery, many patients have some problems and need a second operation, commonly known as repair. After analysis, in addition to external reasons and the patient's own reasons for the problems of the hip joint after replacement, one of the main reasons is that durin...

Claims

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Application Information

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IPC IPC(8): A61F2/46A61B17/17
CPCA61F2/4601A61F2/4609A61B17/1735A61B17/1746
Inventor 陈淑梅
Owner 陈淑梅
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