Hip joint spacer mold

A technology for a placeholder and a hip joint is applied in the field of molds used for making hip joint placeholders, which can solve problems such as inability to change the molding ability, and achieve the effects of multiple operation possibilities, good surgical results, and economic burden reduction.

Active Publication Date: 2014-01-29
BEIJING AKEC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a hip joint placer mold with simple structure, convenient use, guaranteed dimensional accuracy, and reusability. The problem

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  • Hip joint spacer mold
  • Hip joint spacer mold
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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] like figure 1 As shown, the present invention is made up of upper mold part 1 and lower mold assembly 2, and upper mold assembly and lower mold assembly all have a cavity feature 11 and 21 that are symmetrical to each other along the upper and lower mold interface respectively, when upper and lower mold assembly After the parts are fastened together, a closed cavity in the shape of the hemiprosthesis will be formed, and the shape of the cavity is consistent with the hip joint spacer 3, and is used to form the hip joint bone cement spacer 3;

[0022] During the manufacturing process of the spacer, first, bone cement containing antibiotics needs to be injected into the cavities of the upper and lower molds respectively, and after curing, the hip joint spacer 3 is formed. The hip joint spacer 3 is made in a sterile environment during the operation, an...

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Abstract

The invention discloses a hip joint spacer mold comprising an upper mold component and a lower mold component, wherein the upper mold component and the lower mold component are fastened to form a sealed cavity in a form of a semi-hip prosthesis, and the cavity is used for forming a hip joint cement spacer; the lower mold component comprises a base and a fastening system, wherein the fastening system can rotate along an axle department, thus facilitating release of fastening; the upper mold component comprises a mold cavity, a location pin and a groove; through the location pin, the upper mold and the lower mold are rightly combined, and the groove is convenient for opening of the mold. The hip joint spacer mold has the beneficial effects that the upper mold component and the lower mold component can be conveniently combined due to the location pin, so that combination precision is high and surface quality of the spacer is not affected by misplacement of the mold. The hip joint spacer mold, because of the fastening device, does not require a doctor to press the upper and lower molds through hands, and the spacer mold can continuously provide a squeezing capacity and guarantee manufacturing quality of the spacer; the fastening device can rotate along the axle and can easily release fastening, and the design of the groove in the upper mold facilitate the doctor to open the mold and take out the spacer, thus saving operation time.

Description

technical field [0001] The present invention relates to a mold used in hip joint replacement in orthopedic surgery, more specifically, to a mold used for making a hip joint spacer. Background technique [0002] Deep infection after artificial hip replacement is a devastating complication. Once such infection occurs, it is a disaster for the patient and a nightmare for the doctor. Through the unremitting efforts of scholars at home and abroad, the treatment of infection has undergone exploration from the first-stage revision to the second-stage revision. The first-stage operation removes the artificial hip joint prosthesis and performs thorough debridement; A second surgery is done after that, when a new prosthesis is inserted. It has been clinically shown that after debridement in the first-stage operation, other objects should be used to occupy the space where the prosthesis is removed, otherwise the soft tissue around the joint will contract, which will cause difficulties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C39/26
Inventor 王彩梅
Owner BEIJING AKEC MEDICAL
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