CN201551418U - Epiphysis bone coloboma type man-made prosthesis - Google Patents

Epiphysis bone coloboma type man-made prosthesis Download PDF

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Publication number
CN201551418U
CN201551418U CN 200920277797 CN200920277797U CN201551418U CN 201551418 U CN201551418 U CN 201551418U CN 200920277797 CN200920277797 CN 200920277797 CN 200920277797 U CN200920277797 U CN 200920277797U CN 201551418 U CN201551418 U CN 201551418U
Authority
CN
China
Prior art keywords
prosthesis
femur
articular
liner
epiphysis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200920277797
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Chinese (zh)
Inventor
郭卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University
Peking University Peoples Hospital
Original Assignee
Peking University Peoples Hospital
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peking University Peoples Hospital filed Critical Peking University Peoples Hospital
Priority to CN 200920277797 priority Critical patent/CN201551418U/en
Application granted granted Critical
Publication of CN201551418U publication Critical patent/CN201551418U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

Abstract

The utility model discloses an epiphysis bone coloboma type man-made prosthesis for children. The device comprises a femoral side prosthesis body and a tibial side prosthesis body, and further comprises a pad arranged between the femoral prostheses body and the tibial prosthesis body. The stability of half joint is greatly enhanced after adopting the technical scheme.

Description

The child keeps epiphysis bone deficient artificial prosthesis
Technical field
This utility model relates to the femur side prosthesis and rebuilds the field, and particularly the child keeps epiphysis bone deficient artificial prosthesis.
Background technology
The annual constitutional osteosarcoma case of China is about 10,000 many cases.Osteosarcoma accounts for 10% of former bone tumor, accounts for 20% of primary malignant neoplasm, and annual sickness rate is 1-3 people/1,000,000 people, and wherein 75% patient age is to have a strong impact between twenty and fifty able-bodied malignant tumor in 10-30 year.Development gradually in the past 25 years of the notion of protecting the limb operation, maturation.Protect complete excision and the damaged reconstruction of bone that the limb operation mainly comprises the osteoma section of getting involved, various reconstruction techniques have been used at the bone tumor diagnosis and treatment center of US and European in the past two, 30 years, and limbs behind the bone tumour resection are rebuild.Along with in recent years difference being rebuild the result that the method for sending out is followed up a case by regular visits to, the advantage that Follow-up results at a specified future date during the reconstruction of artificial metal prosthese has obtained preferably, femur side prosthesis are rebuild comprises: internal fixation is durable, immediate postoperative stable, short-term and secular functional prognosis preferably, the postoperative range of motion is good.
For teenager, the growth of distal femur and proximal tibia epiphyseal plate accounts for whole lower limb rising and grows 70% of length.The excision of distal part of femur epiphyseal plate can make suffers from the about 1.6cm length of the annual forfeiture of limb.Consider for this reason, carry out knee joint excision (often less than 10 years old) for very little bone tumor patient of age and will inevitably cause serious leg length discrepancy.For the bone in children tumor patient, along with prolong life cycle gradually, complication such as leg length discrepancy that the reconstruction of tumor section amputation prosthese causes and limping day by day increase.The child is because skeleton also has very big energy for growth, and any metal prostheses is along with growing up of child all needs to overhaul at last.Present 10% the collagen tumor patient that swells is faced with the problem of protecting limb operation back leg length discrepancy.The child protects the hot issue that limb postoperative leg length discrepancy becomes this field gradually.Mainly contain two kinds of solutions at present, a kind of is to keep epiphysis, guarantor's limb operation of allogenic bone transplantation.A kind of is to use can to prolong the femur side prosthesis and rebuild.
The semiarthrosis displacement is a kind of solution preferably.When keeping a side seam epiphysis, carried out stable limb reconstruction, reduced the limb shortening rate, and development cost can to prolong prosthese than noinvasive cheap, can make more patient accept to protect the limb treatment.Be the solution that present child of tallying with the national condition most protects limb postoperative leg length discrepancy, clinical effectiveness is gratifying.
The semiarthrosis replacement is meant the excision of the pathological changes osteoarthrosis of joint one side, pedestrian worker's semiarthrosis replacement, and artificial joint face and involutory from the articular surface of body, and do not damage the epiphysis in offside joint.Avoid the adult type joint to destruction,, reduce the postoperative leg length discrepancy as far as possible to keep the growth function of offside epiphysis to side seam.Require relatively strictness for the semiarthrosis prosthetic designs, preferably under CT is auxiliary, carry out prosthetic designs, so that the shape of articular surface is more identical.Increase the stability in joint.After patient's skeleton development maturation, can consider to carry out total joint replacement.
China is that such prosthese is used more country at present, when having obtained comparatively encouraging result, also being faced with some problems and need demanding machine urgently and determine, increasing stability of joint with matching degree from body offside articular surface as how increasing the artificial joint articular surface;
The utility model content
The purpose of this utility model is to provide a kind of child to keep epiphysis bone deficient artificial prosthesis, adopt this device after, the stability of semiarthrosis has strengthened greatly.
The child that this utility model provides keeps epiphysis bone deficient artificial prosthesis, has comprised and has contained femur side prosthesis and tibial side prosthese, comprises that also one is arranged on the liner between described femur side prosthesis and the tibial side prosthese.
Above-mentioned tibial side prosthese comprises handle and articular surface in the marrow, this articular surface is a metal, the periphery of its upper surface extends upward, cause the upper surface of articular surface to form a space (groove), the lower surface of described liner is rabbeted exactly in described space, specifically is in the groove that is stuck on the upper surface of described articular surface.
The shape of above-mentioned liner meets the human geometry and learns principle, and the centre of its upper surface is provided with projection, both sides are provided with depression, in order to corresponding with the joint component of femur side prosthesis.
Above-mentioned liner is a polyethylene liner, adopts polythene material, is difficult for decomposing.
Child of the prior art keep epiphysis bone deficient artificial prosthesis can only be after surgery with the femur side prosthesis directly and the offside articular surface involutory, and the design carries out the cartilage surface osteotomy with the offside articular surface more than epiphyseal plate, and carry out the articular surface molding, add the high stability polyethylene liner after the molding, thereby under the situation of not destroying epiphyseal plate, increase the stability of semiarthrosis greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is user mode figure of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with specific embodiment, but this utility model is not limited to following examples.
Among the following embodiment, if no special instructions, be conventional method.
Embodiment 1, child keep the preparation of epiphysis bone deficient artificial prosthesis
The structural representation that child in this utility model keeps epiphysis bone deficient artificial prosthesis is to have added a polyethylene liner 2 on the body that contains femur side prosthesis 1 and tibial side prosthese 3 as shown in Figure 1.The tibial side prosthese 3 that the child keeps epiphysis bone deficient artificial prosthesis below comprises a handle 31 and an articular surface 32 in the marrow, the periphery 321 of the upper surface of this articular surface 32 extends to upper process, cause the upper surface of articular surface can have the space 322 of a ccontaining liner, above-mentioned liner 2 just can rabbet in this space 322 li.
The shape that the child keeps the joint component 11 of the femur side prosthesis 1 above the epiphysis bone deficient artificial prosthesis is that both sides have projection 111 and 112, and the centre is a depression 113, and this conforms to the bone shaped of human body.The upper surface 21 of liner 2 of the present utility model is to meet the human geometry to learn principle, and the centre of its upper surface is provided with projection 213, both sides are provided with depression 211 and 212, in order to corresponding with the joint component 11 of femur side prosthesis 1.During concrete the installation, as long as the projection 111 and 112 on joint component 11 both sides of femur side prosthesis 1 is placed the depression 211 and 212 of liner 2 upper surfaces, the projection 213 that the intermediary depression 113 of joint component of femur side prosthesis just can ccontaining liner 2 upper surfaces simultaneously.
During concrete the use, as shown in Figure 2, earlier the lower surface of liner 2 is embedded articular surface 32 in space 322 in, then the projection 111 and 112 of the joint component 11 of femur side prosthesis 1 is cooperated with the depression 211 and 212 of the upper surface 21 of liner 2 respectively, this moment, the depression 113 of femur side prosthesis 1 joint component 11 just cooperated with the projection 213 of the upper surface 21 of lower pad 2.
After adopting this technical scheme, increased the stability of semiarthrosis greatly.

Claims (3)

1. the child keeps epiphysis bone deficient artificial prosthesis, comprises the body that contains femur side prosthesis and tibial side prosthese, it is characterized in that: comprise that also one is arranged on the liner between described femur side prosthesis and the tibial side prosthese.
2. device according to claim 1 is characterized in that: described tibial side prosthese comprises handle and articular surface in the marrow, and the periphery of described articular surface extends upward consequently and forms a space on the described articular surface; The lower surface interlocking of described liner is in described space.
3. device according to claim 1 and 2 is characterized in that: the centre of the upper surface of described liner is provided with projection, both sides are provided with depression, in order to corresponding with the joint component of femur side prosthesis.
CN 200920277797 2009-12-10 2009-12-10 Epiphysis bone coloboma type man-made prosthesis Expired - Fee Related CN201551418U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920277797 CN201551418U (en) 2009-12-10 2009-12-10 Epiphysis bone coloboma type man-made prosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920277797 CN201551418U (en) 2009-12-10 2009-12-10 Epiphysis bone coloboma type man-made prosthesis

Publications (1)

Publication Number Publication Date
CN201551418U true CN201551418U (en) 2010-08-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200920277797 Expired - Fee Related CN201551418U (en) 2009-12-10 2009-12-10 Epiphysis bone coloboma type man-made prosthesis

Country Status (1)

Country Link
CN (1) CN201551418U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103565559A (en) * 2012-08-03 2014-02-12 北京大学人民医院 Double-acting type artificial knee joint prosthesis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103565559A (en) * 2012-08-03 2014-02-12 北京大学人民医院 Double-acting type artificial knee joint prosthesis
CN103565559B (en) * 2012-08-03 2015-08-26 北京大学人民医院 A kind of two ejector half artificial knee joint prosthesis

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20151210