Customization joint bone cement prosthesis reinforcing supporting frame and preparation and application thereof
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A joint bone and bone cement technology, applied in joint implants, joint implants, etc., can solve the problems of low adhesion, increased difficulty in secondary joint surgery, and easy fracture or breakage of bone cement spacers. achieve enhanced strength
Pending Publication Date: 2018-11-13
贵港市人民医院
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However, the structure of existing bone cement-reinforced scaffolds is smooth and the adhesion is not high. The bone cement spacer is easily broken or broken when the second-stage operation is taken out, and it is difficult to remove the bone cement spacer completely at one time. It increases the difficulty of cleaning, and also increases the difficulty of the second-stage joint surgery, which affects the operation process
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Embodiment 1
[0040]A personalized joint bone cement prosthesis reinforcement bracket is characterized in that: the reinforcement bracket 1 is provided with a bracket main beam 3, a bracket sub-beam 5 and a bracket net 7, and the bracket net 7 is arranged on the bracket main beam 3 and the bracket sub-beam Around 5, the support main beam 3 is provided with a support head 2 and a support neck 4, and the support subbeam 5 is provided with a support handle 6.
[0041] Further, the material of the support main beam 3 and the support sub-beam 5 is metal.
[0042] Further, the outer diameter of each part of the stent net 7 is smaller than that of the bone cement prosthesis 8 .
Embodiment 2
[0044] A personalized joint bone cement prosthesis reinforcement bracket is characterized in that: the reinforcement bracket 1 is provided with a bracket main beam 3, a bracket sub-beam 5 and a bracket net 7, and the bracket net 7 is arranged on the bracket main beam 3 and the bracket sub-beam Around 5, the support main beam 3 is provided with a support head 2 and a support neck 4, and the support subbeam 5 is provided with a support handle 6.
[0045] Further, the main beam 3 of the bracket and the sub-beam 5 of the bracket are made of polymer plastics.
[0046] Further, the outer diameter of each part of the stent net 7 is equal to the bone cement prosthesis 8 .
Embodiment 3
[0048] A preparation of a personalized joint bone cement prosthesis reinforcement bracket, which is characterized in that it includes building a three-dimensional model of a personalized joint bone cement prosthesis, designing a personalized joint bone cement prosthesis mold 10, and manufacturing a personalized joint bone cement prosthesis. Body mold 10. The process of designing a personalized joint bone cement prosthesis reinforcement bracket and manufacturing a personalized joint bone cement prosthesis reinforcement bracket, the operation steps are:
[0049] 1. Construction of personalized three-dimensional model of joint bone cement prosthesis
[0050] Professionals collect CT or X-ray or MR medical image data of the patient's joint parts (including the long bone part of the joint and the bone cement prosthesis handle), according to the anatomical image features and parameters of the specific patient's CT or X-ray or MR medical image data For example, select the diameter, s...
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Abstract
The invention discloses a customization joint bone cement prosthesis reinforcing supporting frame. The supporting frame is provided with a supporting frame main beam, a supporting frame secondary beamand a supporting frame net, the supporting frame net is arranged in the periphery of the supporting frame main beam and the supporting frame secondary beam, the supporting frame main beam is providedwith a supporting frame head and a supporting frame neck, and the supporting frame secondary beam is provided with a supporting frame handle. A preparation method comprises the steps of prosthesis three-dimensional model construction, prosthesis mold designing and manufacturing and prosthesis reinforcing supporting frame designing and manufacturing. According to the customization joint bone cement prosthesis reinforcing supporting frame, the supporting frame main beam, the supporting frame secondary beam, and a supporting frame net multi-pore net grid structure are designed, the supporting frame net is of a crossed curved surface multi-pore structure of an orthogonal multi-pore structure, bone cement in a liquid period is easily filled into the reinforcing supporting frame to effectivelyenhance the strength of the bone cement prosthesis, prolong the service life of the bone cement prosthesis and improve the success rate of operations, and the defects of easy fracturing caused by insufficient strength due to the fact that the mechanical characteristics of a pure bone cement prosthesis are hard and fragile after the pure bone cement prosthesis in the prior art is cured, and easy fracturing and smashing of the bone cement prosthesis when the bone cement prosthesis is taken out in a two-stage operation are overcome.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and relates to a joint bone cement prosthesis, in particular to a personalized joint bone cement prosthesis reinforcement bracket and its preparation and application. Background technique [0002] Peripsthetic infection after arthroplasty is a catastrophic complication, the incidence rate is 1-2% after knee arthroplasty, but its consequences are serious. At present, the treatment of infection after artificial joint replacement is based on thorough debridement and removal of the prosthesis + implantation of antibiotic bone cement spacer (spacer) + two-stage joint revision as the standard treatment process. During the infection control period, the use of joint spacers can not only maintain joint tension, but also prevent soft tissue contracture around the joint from affecting the effect of the second-stage revision surgery. It can also locally supply high-concentration antibiotics to contro...
Claims
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Application Information
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