CN104997575A - Femur prosthesis assembly system suitable for different types of femur malformation and defects - Google Patents
Femur prosthesis assembly system suitable for different types of femur malformation and defects Download PDFInfo
- Publication number
- CN104997575A CN104997575A CN201510494048.7A CN201510494048A CN104997575A CN 104997575 A CN104997575 A CN 104997575A CN 201510494048 A CN201510494048 A CN 201510494048A CN 104997575 A CN104997575 A CN 104997575A
- Authority
- CN
- China
- Prior art keywords
- femur
- condyle
- prosthesis
- cushion block
- femoral
- 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.)
- Granted
Links
Landscapes
- Prostheses (AREA)
Abstract
The invention discloses a femur prosthesis assembly system suitable for different types of femur malformation and defects. The system comprises a femoral condyle prosthesis, an extension shank prosthesis and an assembled metal wedge-shaped cushion block, wherein the femoral condyle prosthesis comprises a joint surface, condyle bonding surfaces, a femur marrow inner shank and an intercondylar bonding surface; the joint surface and the condyle bonding surfaces adopt an integral structure; the intercondylar bonding surface is arranged between the condyle bonding surfaces; the femur marrow inner shank is arranged in the intercondylar bonding surface; the metal wedge-shaped cushion block comprises a femur rear condyle cushion block and a distal femoral cushion block which are both matched with the condyle bonding surfaces; the upper end of the extension shank prosthesis extends into the femur marrow inner shank for connection and fixation. Due to the femoral condyle prosthesis, the assembled metal wedge-shaped cushion block and the extension shank prosthesis, the parts of the system can be assembled into various types of prostheses in an operation, so as to meet the custom-made prosthesis requirements of patients with various bone defects, and to ensure precise combination and ideal healing effect.
Description
Technical field
The invention belongs to Design for Medical Device technical field, especially relate to a kind of femoral prosthesis adapting to dissimilar femur deformity and defect and set up system.
Background technology
At present, the Cranial defect of femur side can be caused by many reasons, comprising: the angulation deformity in knee that arthritis causes, ischemic necrosis, wound, condyle of femur dysplasia and knee joint overhaul technology.In knee joint overhaul technology, often can run into obvious Cranial defect, and the degree of defect is often greater than the assessment of preoperative iconography.
The Cranial defect of femur side is divided into by defect: cavity defect and segmental defect; Be divided into by defect area: be less than 5mm, 5mm-10mm, more than 10mm three kinds.
In prior art, can solve by the following method the Cranial defect that femur side exists:
1. Cement fixation: Cement fixation is applicable to the Cranial defect that the cavity defect degree of depth is less than 5mm, especially gerontal patient; But the relatively poor biomechanics characteristic of bone cement makes it be used in segmental and larger Cranial defect case, especially young patient;
2. bone grafting (autologous bone or allograph bone): bone grafting (autologous bone or allograph bone) is applicable to the cavity Cranial defect between 5-10mm, especially young patient; But autologous bone is drawn materials limited, and the remoldability of the safety of allograph bone, bone and integration ability poor, cause bone grafting failure;
3. metal correcting wedge and prolonging handle prosthese: metal correcting wedge and prolonging handle prosthese are applicable to the moderate Cranial defect between 5-10mm, the cavity Cranial defect being greater than 10mm and segmental defect, there is the situation that obvious bone amount reduces, or have the case of Progressive symmetric erythrokeratodermia bone loss all applicable.
As can be seen here, for above-mentioned 3 kinds of clinical protocol, metal correcting wedge and prolonging handle prosthese is used to have obvious advantage.
Summary of the invention
The problem to be solved in the present invention is to provide and a kind ofly meets the customized demand of diverse bone types defect patient to prosthese, in conjunction with accurate, and the femoral prosthesis establishment system of the dissimilar femur deformity of adaptation that healing effect is desirable and defect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of femoral prosthesis adapting to dissimilar femur deformity and defect sets up system, the metal correcting wedge of lateral femoral condyle prosthesis, prolonging handle prosthese and assembly type:
Described lateral femoral condyle prosthesis to comprise in articular surface, condyle faying face, femur marrow faying face between handle and condyle, described articular surface and condyle faying face are structure as a whole, described condyle faying face centre position is provided with faying face between condyle, between described condyle, faying face is provided with handle in femur marrow;
Described metal correcting wedge comprises femoral-posterior condyles cushion block and distal femur cushion block, and described femoral-posterior condyles cushion block is vertically arranged, and matches with condyle faying face, is positioned at faying face both sides between condyle; Described distal femur cushion block comprises medial femoral far-end cushion block and lateral femur far-end cushion block, and described medial femoral far-end cushion block and the equal horizontally set of lateral femur far-end cushion block, match with condyle faying face, is positioned at faying face both sides between condyle;
Described prolonging handle prosthese upper end is stretched in femur marrow and is connected and fixed in handle.
Described metal wedge shape pad thickness is 5mm-20mm, and interval 1mm increases progressively.
Described prolonging handle prosthesis length is 40-160mm.
On described prolonging handle prosthese, radial direction is provided with relief groove.
Described prolonging handle prosthetic designs 0mm, 2.5mm, 5.0mm and 7.5mm tetra-kinds of offset distance sizes, select flexibly and combination in art, can correct the disease of various severe deformities.
In described femur marrow, handle 5 ° turns up, and can carry out the coupling of 360 ° of optional positions.
Owing to adopting technique scheme, the metal correcting wedge of (1) lateral femoral condyle prosthesis, assembly type and prolonging handle prosthese allow in art, be assembled into various prosthese, meet the customized demand of diverse bone types defect patient to prosthese; (2) thickness of metal correcting wedge is from 5mm-20mm, and interval 1mm increases progressively, and carries out filling process under realizing the prerequisite of the original bone amount of reservation as much as possible, and metal correcting wedge is maximized with the bone bed contact surface of carrying prosthese; Metal correcting wedge does not need to be incorporated on host bone simultaneously, the risk can not brought nonunion yet He subside; (3) metal correcting wedge is along with thickness difference, and width also changes thereupon; (4) wedge-shaped design of metal correcting wedge, exists and is press-fitted mechanism, do not need to use extra fixing also can with synestotic very accurate; (5) prolonging handle prosthesis length is from 40-160mm, and prosthese band relief groove designs, and assume responsibility for the body weight of human body about 30% while the stress in dispersion prosthese supported underneath face; (6) use the assembly of lateral femoral condyle prosthesis and assembly type metal correcting wedge and prolonging handle prosthese, be easy to the basic principle realizing knee prosthesis: correct lower limb are to the correct installation of line, prosthese, flexing gap and stretch the balance in gap, mobility that knee joint is enough.
The invention has the beneficial effects as follows: have and meet the customized demand of diverse bone types defect patient to prosthese, in conjunction with accurate, the advantage that healing effect is desirable.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the present invention particularly in conjunction with example, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation of the present invention, and does not form restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is overall structure schematic diagram of the present invention
Fig. 2 is the structural representation of lateral femoral condyle prosthesis of the present invention
Fig. 3 is the sectional view of lateral femoral condyle prosthesis of the present invention
Fig. 4 is the right view of Fig. 2 of the present invention
Fig. 5 is the top view of Fig. 4 of the present invention
Fig. 6 is the structural representation of femoral-posterior condyles cushion block of the present invention
Fig. 7 is the side view of Fig. 6 of the present invention
Fig. 8 is the structural representation of medial femoral far-end cushion block of the present invention
Fig. 9 is the upward view of Fig. 8 of the present invention
Figure 10 is the structural representation of lateral femur far-end cushion block of the present invention
Figure 11 is the upward view of Figure 10 of the present invention
Figure 12 is the structural representation of lateral femoral condyle prosthesis of the present invention and the assembly of metal correcting wedge
Figure 13 is the left view of Figure 12 of the present invention
Figure 14 is the upward view of Figure 13 of the present invention
Figure 15 is the structural representation of prolonging handle prosthese of the present invention
Figure 16 is the side view of Figure 15 of the present invention
Figure 17 is three-dimensional structure diagram of the present invention
In figure:
1, lateral femoral condyle prosthesis 2, prolonging handle prosthese 3, metal correcting wedge
11, handle in articular surface 12, condyle faying face 13, femur marrow
14, faying face 21, relief groove 31, femoral-posterior condyles cushion block between condyle
32, distal femur cushion block 321, medial femoral far-end cushion block 322, lateral femur far-end cushion block
Detailed description of the invention
As shown in Fig. 1 to Figure 17, a kind of femoral prosthesis adapting to dissimilar femur deformity and defect of the present invention sets up system, the metal correcting wedge 3 of lateral femoral condyle prosthesis 1, prolonging handle prosthese 2 and assembly type: described lateral femoral condyle prosthesis 1 to comprise in articular surface 11, condyle faying face 12, femur marrow faying face 14 between handle 13 and condyle, described articular surface 11 and condyle faying face 12 are structure as a whole, described condyle faying face 12 centre position is provided with faying face 14 between condyle, faying face 14 is provided with handle 13 in femur marrow between described condyle; Described metal correcting wedge 3 comprises femoral-posterior condyles cushion block 31 and distal femur cushion block 32, and described femoral-posterior condyles cushion block 31 is vertically arranged, and matches with condyle faying face 12, is positioned at faying face 14 both sides between condyle; Described distal femur cushion block 32 comprises medial femoral far-end cushion block 321 and lateral femur far-end cushion block 322, and described medial femoral far-end cushion block 321 and the equal horizontally set of lateral femur far-end cushion block 322, match with condyle faying face 12, be positioned at faying face 14 both sides between condyle; Described prolonging handle prosthese 2 upper end is stretched in femur marrow and is connected and fixed in handle 13; Described metal correcting wedge 3 thickness is 5mm-20mm, and interval 1mm increases progressively; Described prolonging handle prosthese 2 length is 40-160mm; On described prolonging handle prosthese 2, radial direction is provided with relief groove 21; Described prolonging handle prosthese 2 devises 0mm, 2.5mm, 5.0mm and 7.5mm tetra-kinds of offset distance sizes, selects flexibly and combination, can correct the disease of various severe deformities in art; In described femur marrow, handle 13 has 5 ° to turn up, and can carry out the coupling of 360 ° of optional positions.
(1) the metal correcting wedge 3 of lateral femoral condyle prosthesis 1, assembly type and prolonging handle prosthese 2 allow in art, be assembled into various prosthese, meet the customized demand of diverse bone types defect patient to prosthese; (2) thickness of metal correcting wedge 3 is from 5mm-20mm, and interval 1mm increases progressively, and carries out filling process under realizing the prerequisite of the original bone amount of reservation as much as possible, and metal correcting wedge 3 is maximized with the bone bed contact surface of carrying prosthese; Metal correcting wedge 3 does not need to be incorporated on host bone simultaneously, the risk can not brought nonunion yet He subside; (3) metal correcting wedge 3 is along with thickness difference, and width also changes thereupon; (4) wedge-shaped design of metal correcting wedge 3, exists and is press-fitted mechanism, do not need to use extra fixing also can with synestotic very accurate; (5) prolonging handle prosthese 2 length is from 40-160mm, and prosthese band relief groove 21 designs, and assume responsibility for the body weight of human body about 30% while the stress in dispersion prosthese supported underneath face; (6) use the assembly of lateral femoral condyle prosthesis 1 and assembly type metal correcting wedge 3 and prolonging handle prosthese 2, be easy to the basic principle realizing knee prosthesis: correct lower limb are to the correct installation of line, prosthese, flexing gap and stretch the balance in gap, mobility that knee joint is enough.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (6)
1. the femoral prosthesis adapting to dissimilar femur deformity and defect sets up system, it is characterized in that: the metal correcting wedge of lateral femoral condyle prosthesis, prolonging handle prosthese and assembly type: described lateral femoral condyle prosthesis to comprise in articular surface, condyle faying face, femur marrow faying face between handle and condyle, described articular surface and condyle faying face are structure as a whole, described condyle faying face centre position is provided with faying face between condyle, between described condyle, faying face is provided with handle in femur marrow; Described metal correcting wedge comprises femoral-posterior condyles cushion block and distal femur cushion block, and described femoral-posterior condyles cushion block is vertically arranged, and matches with condyle faying face, is positioned at faying face both sides between condyle; Described distal femur cushion block comprises medial femoral far-end cushion block and lateral femur far-end cushion block, and described medial femoral far-end cushion block and the equal horizontally set of lateral femur far-end cushion block, match with condyle faying face, is positioned at faying face both sides between condyle; Described prolonging handle prosthese upper end is stretched in femur marrow and is connected and fixed in handle.
2. the femoral prosthesis of the dissimilar femur deformity of adaptation according to claim 1 and defect sets up system, it is characterized in that: described metal wedge shape pad thickness is 5mm-20mm, and interval 1mm increases progressively.
3. the femoral prosthesis of the dissimilar femur deformity of adaptation according to claim 1 and defect sets up system, it is characterized in that: described prolonging handle prosthesis length is 40-160mm.
4. the femoral prosthesis of the dissimilar femur deformity of adaptation according to claim 1 and defect sets up system, it is characterized in that: on described prolonging handle prosthese, radial direction is provided with relief groove.
5. the femoral prosthesis of the dissimilar femur deformity of adaptation according to claim 1 and defect sets up system, it is characterized in that: described prolonging handle prosthetic designs 0mm, 2.5mm, 5.0mm and 7.5mm tetra-kinds of offset distance sizes, select flexibly and combination in art, the disease of various severe deformities can be corrected.
6. the femoral prosthesis of the dissimilar femur deformity of adaptation according to claim 1 and defect sets up system, it is characterized in that: in described femur marrow, handle 5 ° turns up, can carry out the coupling of 360 ° of optional positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494048.7A CN104997575B (en) | 2015-08-11 | 2015-08-11 | A kind of femoral prosthesis establishment system adapting to different type femur deformity and defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494048.7A CN104997575B (en) | 2015-08-11 | 2015-08-11 | A kind of femoral prosthesis establishment system adapting to different type femur deformity and defect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104997575A true CN104997575A (en) | 2015-10-28 |
| CN104997575B CN104997575B (en) | 2019-02-12 |
Family
ID=54370635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510494048.7A Active CN104997575B (en) | 2015-08-11 | 2015-08-11 | A kind of femoral prosthesis establishment system adapting to different type femur deformity and defect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104997575B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107361881A (en) * | 2017-08-07 | 2017-11-21 | 胡永成 | A kind of distal femur prosthese using trabecular bone structure for increasing bone reserve capacity |
| CN109009571A (en) * | 2018-08-02 | 2018-12-18 | 北京积水潭医院 | A kind of wear-resisting joint prosthesis part replacement prosthesis and its application method |
| CN109077833A (en) * | 2018-09-29 | 2018-12-25 | 北京爱康宜诚医疗器材有限公司 | Lateral femoral condyle prosthesis component |
| CN112245071A (en) * | 2020-11-10 | 2021-01-22 | 北京积水潭医院 | Femoral isthmus forming porous steel plate system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047058A (en) * | 1988-04-08 | 1991-09-10 | Smith & Nephew Richards, Inc. | System of inserts for the tibial component of a knee prosthesis |
| EP0597553A1 (en) * | 1992-11-12 | 1994-05-18 | Bristol-Myers Squibb Company | Method of attaching a modular femoral head to the neck of a hip stem prosthesis for the preventation of corrosion therebetween |
| CN201414855Y (en) * | 2009-02-12 | 2010-03-03 | 北京爱康宜诚医疗器材有限公司 | Artificial knee-joint bone fusion prosthesis |
| CN203001180U (en) * | 2012-11-02 | 2013-06-19 | 北京爱康宜诚医疗器材股份有限公司 | Rotating hinged artificial knee joint tibial spacer |
| CN103260552A (en) * | 2010-10-14 | 2013-08-21 | 德普伊新特斯产品有限责任公司 | Prosthesis with surfaces having different textures and method of making the prosthesis |
| CN203829097U (en) * | 2014-05-26 | 2014-09-17 | 北京威高亚华人工关节开发有限公司 | Rotary hinge type knee joint prosthesis |
| CN104125818A (en) * | 2012-02-17 | 2014-10-29 | 株式会社科麟泰 | Artificial knee joint |
| WO2015051785A1 (en) * | 2013-10-11 | 2015-04-16 | Josef Jansen | Joint spacer |
-
2015
- 2015-08-11 CN CN201510494048.7A patent/CN104997575B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047058A (en) * | 1988-04-08 | 1991-09-10 | Smith & Nephew Richards, Inc. | System of inserts for the tibial component of a knee prosthesis |
| EP0597553A1 (en) * | 1992-11-12 | 1994-05-18 | Bristol-Myers Squibb Company | Method of attaching a modular femoral head to the neck of a hip stem prosthesis for the preventation of corrosion therebetween |
| CN201414855Y (en) * | 2009-02-12 | 2010-03-03 | 北京爱康宜诚医疗器材有限公司 | Artificial knee-joint bone fusion prosthesis |
| CN103260552A (en) * | 2010-10-14 | 2013-08-21 | 德普伊新特斯产品有限责任公司 | Prosthesis with surfaces having different textures and method of making the prosthesis |
| CN104125818A (en) * | 2012-02-17 | 2014-10-29 | 株式会社科麟泰 | Artificial knee joint |
| CN203001180U (en) * | 2012-11-02 | 2013-06-19 | 北京爱康宜诚医疗器材股份有限公司 | Rotating hinged artificial knee joint tibial spacer |
| WO2015051785A1 (en) * | 2013-10-11 | 2015-04-16 | Josef Jansen | Joint spacer |
| CN203829097U (en) * | 2014-05-26 | 2014-09-17 | 北京威高亚华人工关节开发有限公司 | Rotary hinge type knee joint prosthesis |
Non-Patent Citations (1)
| Title |
|---|
| 李晓辉，于建华，贾健: "膝关节翻修术中骨缺损修复的技术现状及发展趋势", 《中华关节外科杂志》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107361881A (en) * | 2017-08-07 | 2017-11-21 | 胡永成 | A kind of distal femur prosthese using trabecular bone structure for increasing bone reserve capacity |
| CN107361881B (en) * | 2017-08-07 | 2023-11-24 | 胡永成 | Femur far-end prosthesis capable of increasing bone preservation quantity and adopting bone trabecular structure |
| CN109009571A (en) * | 2018-08-02 | 2018-12-18 | 北京积水潭医院 | A kind of wear-resisting joint prosthesis part replacement prosthesis and its application method |
| CN109077833A (en) * | 2018-09-29 | 2018-12-25 | 北京爱康宜诚医疗器材有限公司 | Lateral femoral condyle prosthesis component |
| CN112245071A (en) * | 2020-11-10 | 2021-01-22 | 北京积水潭医院 | Femoral isthmus forming porous steel plate system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104997575B (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105105887A (en) | Tibial prosthesis building system suitable for different types of tibial malformations and defects | |
| KR100825192B1 (en) | Articulating implant system | |
| CN104997575A (en) | Femur prosthesis assembly system suitable for different types of femur malformation and defects | |
| KR101184905B1 (en) | Artificial knee joint | |
| US20060085076A1 (en) | Posterior spinal arthroplasty-development of a new posteriorly inserted artificial disc and an artificial facet joint | |
| EP1547548B1 (en) | Junction for a medical modular implant | |
| JP2008521493A5 (en) | ||
| CN104840281B (en) | Artificial vertebral body | |
| CN105342667A (en) | Precise eccentric distance knee joint tool module system | |
| US11337822B2 (en) | Temporomandibular joint implants and methods of treating a temporomandibular joint | |
| EP2953583B1 (en) | Tapered tibial augment | |
| CN204798066U (en) | Artificial pyramid | |
| US20160367369A1 (en) | Cartilage prosthetic implant | |
| CN211187661U (en) | Tibial prosthesis and knee joint prosthesis comprising same | |
| CN116138933A (en) | Knee joint prosthesis for error correction and use method | |
| CN112754737A (en) | Implanted toe joint prosthesis | |
| AU2012100561B4 (en) | The Melbourne TMJ Prosthesis | |
| CN109171844A (en) | It is a kind of with the osteotomy device for strutting and fixing sutura function | |
| CN103027820B (en) | Adjustable lower limb surgical position maintaining support frame | |
| KR20160033008A (en) | A IMPLANT FOR OSTEOSYNTHESIS OF TIBIA and FEMUR | |
| CN207236836U (en) | A kind of acetabular bone squared region dynamic pressurization titanium plate | |
| CN204814126U (en) | Kneecap resection forceps | |
| CN215349376U (en) | Locking plate for fixing distal comminuted fracture of femur | |
| CN109330746B (en) | Osteotomy orthopedic fusion device | |
| WO2022099444A1 (en) | Femoral isthmus forming porous steel plate system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220415 Address after: No.27 Ziyang Road Nankai District Tianjin 300190 Patentee after: Jiasite medical equipment (Tianjin) Co.,Ltd. Address before: No.27 Ziyang Road Nankai District Tianjin 300190 Patentee before: Jiasite Huajian Medical Equipment(Tianjin)Co.,Ltd. |
|
| TR01 | Transfer of patent right |