CN102579166A - Bone-cement femoral head prosthesis shaping die - Google Patents
Bone-cement femoral head prosthesis shaping die Download PDFInfo
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- CN102579166A CN102579166A CN2012100596256A CN201210059625A CN102579166A CN 102579166 A CN102579166 A CN 102579166A CN 2012100596256 A CN2012100596256 A CN 2012100596256A CN 201210059625 A CN201210059625 A CN 201210059625A CN 102579166 A CN102579166 A CN 102579166A
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- head
- afterbody
- prosthesis
- tail
- bone
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Abstract
The invention discloses a bone-cement femoral head prosthesis shaping die, which is a hollow die body formed by splicing two symmetrical shells, wherein the head of the die body after splicing is in a shape of 3/4 of a sphere, the tail of the die body is in a rectangular shape, the connection part of the head and the tail is in a collar wedge shape, and through holes are arranged in the middle of the top end of the head and in the middle of the bottom end of the tail; 1/2 of concave cavities and 1/2 of holes corresponding the above shapes are symmetrically arranged on a combination surface of the symmetrical shells; the two sides of the head of the symmetrical shells and the outer side of the tail are respectively provided with tenons and mortises that are assembled in a matched way; and the long side corresponding to the tail of the symmetrical shells is provided with 2-3 foldable connecting belts at intervals. With the adoption of the die, the process of producing an antibiotic bone-cement temporary prosthesis in a surgery is simplified, the shaped prosthesis is similar to the shape of the near end of a femur, so that the fixing is easy, the supporting is relatively stable, the operation method is simple, practical and reliable, and the time for producing the bone-cement prosthesis can be shortened, so as to shorten the surgery time, reduce the bleeding in the surgery and be beneficial for patients.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically is the moulding mould of a kind of bone cement femoral head prosthesis.
Background technology
The treatment of hip replacement postoperative infection is the difficult problem that present orthopaedics faces, though its Therapeutic Method is many, curative effect is all not too satisfied; After hip prosthesis is taken out in the operation of often need going, make in the interim femoral head prosthesis implantation kitchen range spacious putting 3-6 month with antibiotic-loaded bone cement; Play local infection and interim supporting role; After waiting to infect control fully, the capable again hip replacement of interim prosthese is taken out in operation once more.The interim femoral head prosthesis of bone cement making at present needs surgical staff hand forming molding in the art, and the shape size is not easy control, and is random big, and fixing insecure, support is unstable.And antibiotic is long-term and the bone cement coexistence is prone to lose efficacy, and is difficult for preserving.Antibiotic-loaded bone cement needs interim allotment, selects for use antibiotic kind to need to select according to antibacterial culturing drug sensitivity assay result, and customization antibiotic-loaded bone cement prosthese cost is high, and feasibility is little.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art, and the moulding mould of disposable bone cement femoral head prosthesis in a kind of art is provided.This formed in mould prosthese is near human femur near-end shape, and easy fixation supports relatively stablely, and operational approach is simply solid, can shorten bone cement prosthese Production Time, and then shorten operating time, reduces intraoperative hemorrhage, and the patient is benefited.
The technical scheme that realizes the object of the invention is:
The moulding mould of a kind of bone cement femoral head prosthesis; It is the hollow die body that is put together by two symmetric housings, and the die body head after the merging is 3/4 sphere, and afterbody is rectangular; The junction of head and afterbody is for leading wedge shape, and apical head and afterbody center bottom are provided with through hole.
Be symmetrically arranged with 1/2 cavity and the hole corresponding on the faying face of said symmetrical housing with above-mentioned shape.
The head both sides of said symmetrical housing and the afterbody outside are respectively arranged with mutual coupling equipped tenon and mortise, and closed housing can not be opened voluntarily.
But the long limit that the afterbody of said symmetrical housing is corresponding is provided with the connecting band of 2-3 bar doubling at interval, makes the folding fully of two housings.
Said thickness of shell is 1-2mm.
Said through hole is circular or square.
Said connecting band is the hinge connection or is band folding plastics of folding line or metal joining strips.
When making the bone cement femoral head, symmetric two housings are merged along hinge, tenon inserts in the mortise; Inject bone cement from the square hole of housing afterbody or circular hole then, till bone cement overflows from the square hole of housing head or circular hole, wait bone cement do solid after; Open housing; Take out femoral head prosthesis, to prosthese clear up, smooth, can use.
The advantage of this mould is: (1) utilizes this mould to simplify and makes the interim prosthese process of antibiotic-loaded bone cement in the operation; The prosthese of molding
head and human femur head, neck shape are approaching, and the bone cement prosthese that is beneficial to after the molding provides enough fillings and support for art kitchen range cavity.2. tail end is similar with femoral hip stem prosthese shape, and the bone cement prosthese tail end and the near end of thighbone pulp cavity coupling that help after the molding are fixing.3. be end-to-end portion with lead the neck portion shape of type femoral bone end prosthesis close, help bone cement prosthese and former femur osteotomy surface coupling after the molding, between acetabular bone and near end of thighbone, play and decide supporting role, prevent the sinking of bone cement prosthese; (2) but the housing folding, it is porose to reach the middle part end to end, unnecessary bone cement can overflow from reaching the mider hole end to end, is easy to molding after injecting antibiotic-loaded bone cement, does to be easy to peel off after solid; (3) simple to operate, forming can be selected suitable antibiotic and bone cement mixed-forming in the art as required; (4) but high-temperature sterilization, monomer and the polymer with acrylic acid methyl ester. do not react, and do not discharge/residual to toxic elements in human body evil composition.
Description of drawings
Fig. 1 is the structural representation of the symmetrical housing of the embodiment of the invention when launching.
Among the figure: 1. housing head 2. housing incidence 3. housing afterbodys 4. housing afterbody through holes 5. connecting bands 6. connecting bands are to folding line 7. mortises 8. housing head through holes 9. tenons.
The specific embodiment
With reference to Fig. 1, the moulding mould of a kind of bone cement femoral head prosthesis of the present invention, it is put together by two symmetric housings; After the merging, housing head 1 is 3/4 sphere, and is approaching with human femur head, neck shape; Afterbody 3 is rectangular, and is similar with femoral hip prosthesis head prosthesis shape, and the incidence 2 that head is connected with afterbody is for leading wedge shape; Close with the neck portion shape of leading type femoral bone end prosthesis, on the faying face of symmetrical housing, be symmetrically arranged with 1/2 cavity corresponding with above-mentioned shape, thickness of shell is 2mm; Head 1 both sides of two symmetrical housings and afterbody 3 outsides are respectively arranged with mutual coupling equipped tenon 9 and mortise 7; Closed housing can not be opened voluntarily, and at the connecting band 5 that the corresponding setting in long limit of the afterbody 3 of two symmetrical housings is processed by metal or plastics, the middle part of connecting band 5 is provided with connecting band to folding line 6; Being respectively equipped with diameter at head of housing 1 and afterbody 3 is that the housing head through hole 8 of 3-5mm is the housing afterbody through hole 4 of 10-12mm with diameter, is convenient to pour into bone cement.
When two housings merges, along connecting band to folding line 6 with housing doubling amalgamation, tenon 9 fastens with mortise 7 and is connected as a single entity.
This mould can be divided into 48mm, 52mm or three kinds of specifications of 56mm by the diameter of femoral head head.
Claims (4)
1. moulding mould of bone cement femoral head prosthesis; It is the hollow die body that is put together by two symmetric housings, and the die body head after the merging is 3/4 sphere, and afterbody is rectangular; The junction of head and afterbody is for leading wedge shape, and apical head and afterbody center bottom are provided with through hole;
Be symmetrically arranged with 1/2 cavity and the hole corresponding on the faying face of said symmetrical housing with above-mentioned shape;
The head both sides of said symmetrical housing and the afterbody outside are respectively arranged with mutual coupling equipped tenon and mortise;
But the long limit that the afterbody of said symmetrical housing is corresponding is provided with the connecting band of 2-3 bar doubling at interval.
2. mould according to claim 1 is characterized in that: said thickness of shell is 1-2mm.
3. mould according to claim 1 is characterized in that: said through hole is for circular or square.
4. mould according to claim 1 is characterized in that: said connecting band is hinge or band folding plastics of folding line or metal joining strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100596256A CN102579166A (en) | 2012-03-08 | 2012-03-08 | Bone-cement femoral head prosthesis shaping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100596256A CN102579166A (en) | 2012-03-08 | 2012-03-08 | Bone-cement femoral head prosthesis shaping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102579166A true CN102579166A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100596256A Pending CN102579166A (en) | 2012-03-08 | 2012-03-08 | Bone-cement femoral head prosthesis shaping die |
Country Status (1)
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| CN (1) | CN102579166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595444A (en) * | 2017-11-03 | 2018-01-19 | 青田县人民医院 | A kind of preparation method of near end of thighbone bone cement prosthese mould and the prosthese |
| CN109171939A (en) * | 2018-08-02 | 2019-01-11 | 重庆市华港科技有限公司 | Bone cement prosthese integration 3D printing molding die and its forming method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361731B1 (en) * | 1998-07-15 | 2002-03-26 | Biomet, Inc. | Method of forming a temporary implant |
| CN2860407Y (en) * | 2005-11-18 | 2007-01-24 | 财团法人长庚纪念医院 | Antibiotic-containing bone cement artificial joint with high resistance to pressure |
| US20090157189A1 (en) * | 2007-12-13 | 2009-06-18 | Biomet Manufacturing Corp. | Modular Articulating Cement Spacer Mold |
| CN202497267U (en) * | 2012-03-08 | 2012-10-24 | 唐际存 | Bone-cement femoral head prosthesis shaping die |
-
2012
- 2012-03-08 CN CN2012100596256A patent/CN102579166A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361731B1 (en) * | 1998-07-15 | 2002-03-26 | Biomet, Inc. | Method of forming a temporary implant |
| CN2860407Y (en) * | 2005-11-18 | 2007-01-24 | 财团法人长庚纪念医院 | Antibiotic-containing bone cement artificial joint with high resistance to pressure |
| US20090157189A1 (en) * | 2007-12-13 | 2009-06-18 | Biomet Manufacturing Corp. | Modular Articulating Cement Spacer Mold |
| CN202497267U (en) * | 2012-03-08 | 2012-10-24 | 唐际存 | Bone-cement femoral head prosthesis shaping die |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595444A (en) * | 2017-11-03 | 2018-01-19 | 青田县人民医院 | A kind of preparation method of near end of thighbone bone cement prosthese mould and the prosthese |
| CN107595444B (en) * | 2017-11-03 | 2023-11-21 | 青田县人民医院 | Proximal femur bone cement prosthesis die and manufacturing method of prosthesis |
| CN109171939A (en) * | 2018-08-02 | 2019-01-11 | 重庆市华港科技有限公司 | Bone cement prosthese integration 3D printing molding die and its forming method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120718 |