CN101019786A - Compound partial femoral head surface prosthesis - Google Patents
Compound partial femoral head surface prosthesis Download PDFInfo
- Publication number
- CN101019786A CN101019786A CN 200610021955 CN200610021955A CN101019786A CN 101019786 A CN101019786 A CN 101019786A CN 200610021955 CN200610021955 CN 200610021955 CN 200610021955 A CN200610021955 A CN 200610021955A CN 101019786 A CN101019786 A CN 101019786A
- Authority
- CN
- China
- Prior art keywords
- prosthesis
- femoral head
- head surface
- compound partial
- pin
- 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
The present invention discloses one kind of compound partial femoral head surface prosthesis with very low wear to the cartilage and long lifetime. The compound partial femoral head surface prosthesis includes one pin and one prosthesis member copying the femoral head joint surface. The prosthesis member is made of PVA aquegel, and the pin has its upper part connected to the prosthesis member integrally. The present invention has the advantages of the excellent tribological characteristic of the prosthesis member, low wear to the cartilage, long term biological fixing and long lifetime.
Description
Technical field
The present invention relates to the partial femoral head surface prosthetic replacement and use prosthese, particularly a kind of compound partial femoral head surface prosthesis.
Background technology
The prosthetic replacement has become a kind of effective Therapeutic Method of current treatment joint disease.But because artificial joint prosthesis self design and make the defective of aspects such as material and material and human articular cartilage, skeletal tissue between the biomechanical property interface differ from bigger, the wearing and tearing that prosthetic loosening, sinking and acetabular bone side articular surface cartilage take place easily etc. that implant cause the prosthese failure.Prosthese is limited life cycle in body simultaneously, and part patient Avascular Necrosis Of Femur Head III phase patient particularly, age is many between 30 years old～50 years old, Therapeutic Method best concerning this class crowd is exactly to preserve the femoral head normal bone to greatest extent, adopt methods such as part surface prosthetic replacement, postpone the row total hip replacement time as far as possible.As change unconspicuous case such as Avascular Necrosis Of Femur Head III phase patient for the acetabular bone lateral cartilages, can adopt the displacement of part femoral head surface prosthesis.But currently used partial femoral head surface prosthesis main material is a metal, the interface difference is bigger between surface prosthesis biology, mechanical property such as creep properties, elastic modelling quantity and the people's acetabular bone lateral cartilages that metal material is made, cause that easily the acetabular bone lateral cartilages weares and teares, cause the prosthese failure and have to use instead artificial full hip-joint replacement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of compound partial femoral head surface prosthesis, and this prosthese has the back characteristics very little to the wearing and tearing of acetabular bone lateral cartilages that implant, and can farthest prolong prosthese life cycle.
The technical solution adopted for the present invention to solve the technical problems is: compound partial femoral head surface prosthesis of the present invention, it is characterized in that: it comprise pin and with the prosthesis structure of femoral head articular surface profiling, described prosthesis structure is made by polyvinyl alcohol hydrogel, and the top and the prosthesis structure of described pin are connected to form one.
Prosthese head part polyethylene alcohol its biological property of hydrogel and acetabular bone side articular surface chondrosin rerum natura are closely similar, its energetics performance all with same and acetabular bone side articular surface cartilage mechanical property is complementary, the interface difference is less between the two, very little after implanting to the wearing and tearing of acetabular bone lateral cartilages, can not cause the regression of acetabular bone lateral cartilages, can farthest prolong prosthese life cycle.Because the prosthetic joint face is divided into organic material, can as metal material, produce the galling chip after implanting, and cause changes such as prosthetic loosening and hip joint synovial hyperplasia simultaneously.
As a preferred embodiment of the present invention, for being formed with the femur around the implantation position, prosthese combines more closely, and described pin is made by titanium alloy, is coated with the micropore composite bed that spraying hydroxyapatite forms on its outer surface.After prosthese was implanted, by contacting with active osseous tissue is arranged on every side, freshman bone tissue's micropore composite bed of can growing into formed little interlocking sample and fixes biology, avoids in response to complication that fixedly causes with bone cement and sequela.
The invention has the beneficial effects as follows, have and tribology feature like the thin-skinned bone photo of person joint with the prosthesis structure of femoral head articular surface profiling, therefore very little after implanting to the wearing and tearing of acetabular bone lateral cartilages, can form little interlocking sample after prosthese is implanted fixes biology, reach and fix stable biology at a specified future date, therefore can farthest prolong prosthese life cycle, avoid causing the generation of prosthese graft failure phenomenon because of the excessive wear of side articular surface.
Description of drawings
This description comprises following three width of cloth accompanying drawings:
Fig. 1 is the front view (broken section) of compound partial femoral head surface prosthesis of the present invention;
Fig. 1 is the longitudinal sectional drawing of the prosthesis structure in the compound partial femoral head surface prosthesis of the present invention;
Fig. 3 is the longitudinal sectional drawing of the pin in the compound partial femoral head surface prosthesis of the present invention;
Parts, position and numbering among the figure: prosthesis structure 10, shrinkage pool 11, pin 20, linkage section 21, micropore composite bed 30.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1, compound partial femoral head surface prosthesis of the present invention, comprise pin 20 and with the prosthesis structure 10 of femoral head articular surface profiling, described prosthesis structure 10 is made by polyvinyl alcohol hydrogel, the top of described pin 20 and prosthesis structure 10 are connected to form one.
Polyvinyl alcohol hydrogel is a kind of organic-biological material that extensively causes concern in recent years, it has the loose structure of the natural cartilage of being similar to, contain a large amount of moisture, under the load effect, liquid can be as the articular surface cartilage deeply or extrude, the liquid of extruding as knuckle synovia with lubrication, and performance buffering stress, reduce the friction between the articular surface, reduce the wearing and tearing of articular surface.The biological nature of polyvinyl alcohol hydrogel such as hydrophilic and the high property of water-bearing with and the concordance of the similarity of special surface texture and articular surface cartilage and biomechanical property such as elastic modelling quantity, croop property etc. and articular surface cartilage, also have advantages such as good biocompatibility, nontoxic, non-immunogenicity, studies show that simultaneously the thin-skinned bone of polyvinyl alcohol hydrogel and person joint has similar tribology feature, so polyvinyl alcohol hydrogel material can be used for substituting the articular surface cartilage.Because prosthesis structure 10 is an organic material, can as metal material, produce the galling chip after implanting, and cause changes such as prosthetic loosening and hip joint synovial membrane thicken simultaneously.
With reference to Fig. 1 and Fig. 3, described pin 20 is made by titanium alloy.Be coated with the micropore composite bed 30 that spraying hydroxyapatite forms on its outer surface.Described pin 20 is for having the cylinder of tapering.Titanium alloy has good biocompatibility, mechanical property such as elastic modelling quantity and approaches people's cortical bone, and does not have advantages such as magnetic.Because when the treatment Avascular Necrosis Of Femur Head, necrotic bone tissue part is a sector structure at the femoral head coronalplane, three are redeveloped into a circular cone spline structure.Removing the remaining defective region in necrotic bone tissue back in operation fully is that a circular cone sample is damaged, and therefore described pin 20 should adopt cylinder and the femoral head defects coupling that has tapering.For being formed with the femur around the implantation position, prosthese combines more closely, be coated with the micropore composite bed 30 that spraying hydroxyapatite forms on the outer surface of described pin 20, micropore composite bed 30 outer surfaces are coarse, Later Zhou Dynasty, one of the Five Dynasties that implants like this is with active osseous tissue and grows in the micropore, reaches and fixes stable biology at a specified future date.In the course of processing, can establish the needs that the different size specifications in boundary vary in size with adaptation population's individual variation and osteonecrosis district.
Described pin 20, prosthesis structure 10 both can fix or form one by mechanical connection in conjunction with fixing by adhesives.Fig. 2 and Fig. 3 show a kind of concrete syndeton, with reference to Fig. 2, described prosthesis structure 10 has the shrinkage pool 11 that is caved inward by its bottom, the top of described pin 20 has stretches into this shrinkage pool 11 and suitable with it linkage section 21, between prosthesis structure 10 and the pin 20 by be coated on shrinkage pool 11, linkage section 21 lip-deep adhesives are one.
Some principles of the above compound partial femoral head surface prosthesis of the present invention that just explains through diagrams, be not be compound partial femoral head surface prosthesis of the present invention to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (5)
1. compound partial femoral head surface prosthesis, it is characterized in that: it comprise pin (20) and with the prosthesis structure (10) of femoral head articular surface profiling, described prosthesis structure (10) is made by polyvinyl alcohol hydrogel, and the top of described pin (20) and prosthesis structure (10) are connected to form one.
2. compound partial femoral head surface prosthesis as claimed in claim 1 is characterized in that: described pin (20) is made by titanium alloy, is coated with the micropore composite bed (30) that spraying hydroxyapatite forms on its outer surface.
3. compound partial femoral head surface prosthesis as claimed in claim 1 or 2 is characterized in that: described pin (20) is for having the cylinder of tapering.
4. compound partial femoral head surface prosthesis as claimed in claim 3, it is characterized in that: described prosthesis structure (10) has the shrinkage pool (11) that is caved inward by its bottom, and the top of described pin (20) has stretches into this shrinkage pool (11) and suitable with it linkage section (21).
5. compound partial femoral head surface prosthesis as claimed in claim 4 is characterized in that: between described prosthesis structure (10) and the pin (20) by be coated on shrinkage pool (11), the lip-deep adhesives of linkage section (21) is an one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021955 CN101019786B (en) | 2006-09-27 | 2006-09-27 | Compound partial femoral head surface prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021955 CN101019786B (en) | 2006-09-27 | 2006-09-27 | Compound partial femoral head surface prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101019786A true CN101019786A (en) | 2007-08-22 |
| CN101019786B CN101019786B (en) | 2011-05-04 |
Family
ID=38707712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610021955 Expired - Fee Related CN101019786B (en) | 2006-09-27 | 2006-09-27 | Compound partial femoral head surface prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101019786B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727327A (en) * | 2012-05-24 | 2012-10-17 | 上海交通大学医学院附属第九人民医院 | Artificial knee joint prosthesis |
| CN105105875A (en) * | 2015-08-04 | 2015-12-02 | 西安交通大学 | Biomimetic artificial hip joint with internal growth function |
| CN105287057A (en) * | 2015-11-11 | 2016-02-03 | 青岛科技大学 | Artificial caput femoris |
| CN108720969A (en) * | 2018-06-20 | 2018-11-02 | 上海交通大学医学院附属第九人民医院 | A kind of biomimetic prosthetic remporomandibular joint replacement prosthesis |
| CN109528356A (en) * | 2019-01-21 | 2019-03-29 | 北京爱康宜诚医疗器材有限公司 | Compound insert |
| CN109730812A (en) * | 2019-01-31 | 2019-05-10 | 重庆凝骄生物科技有限公司 | A kind of focal cartilage defect repair body |
| CN110368144A (en) * | 2019-08-05 | 2019-10-25 | 北京爱康宜诚医疗器材有限公司 | Shoulder joint prosthesis |
| CN111134907A (en) * | 2020-01-08 | 2020-05-12 | 武汉优联百康医疗科技有限公司 | Novel tibial prosthesis locking handle and preparation method thereof |
| CN111227995A (en) * | 2020-03-19 | 2020-06-05 | 闫新峰 | Femoral head prosthesis component |
| CN115869114A (en) * | 2023-01-31 | 2023-03-31 | 北京爱康宜诚医疗器材有限公司 | Cartilage prosthesis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6156069A (en) * | 1999-02-04 | 2000-12-05 | Amstutz; Harlan C. | Precision hip joint replacement method |
-
2006
- 2006-09-27 CN CN 200610021955 patent/CN101019786B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727327A (en) * | 2012-05-24 | 2012-10-17 | 上海交通大学医学院附属第九人民医院 | Artificial knee joint prosthesis |
| CN105105875A (en) * | 2015-08-04 | 2015-12-02 | 西安交通大学 | Biomimetic artificial hip joint with internal growth function |
| CN105105875B (en) * | 2015-08-04 | 2018-01-16 | 西安交通大学 | A kind of biomimetic prosthetic hip joint with interior growth function |
| CN105287057A (en) * | 2015-11-11 | 2016-02-03 | 青岛科技大学 | Artificial caput femoris |
| CN105287057B (en) * | 2015-11-11 | 2017-09-12 | 青岛科技大学 | Artificial thigh bone |
| CN108720969A (en) * | 2018-06-20 | 2018-11-02 | 上海交通大学医学院附属第九人民医院 | A kind of biomimetic prosthetic remporomandibular joint replacement prosthesis |
| CN109528356A (en) * | 2019-01-21 | 2019-03-29 | 北京爱康宜诚医疗器材有限公司 | Compound insert |
| CN109730812A (en) * | 2019-01-31 | 2019-05-10 | 重庆凝骄生物科技有限公司 | A kind of focal cartilage defect repair body |
| CN109730812B (en) * | 2019-01-31 | 2022-02-08 | 重庆凝骄生物科技有限公司 | Focal cartilage defect prosthesis |
| CN110368144A (en) * | 2019-08-05 | 2019-10-25 | 北京爱康宜诚医疗器材有限公司 | Shoulder joint prosthesis |
| CN111134907A (en) * | 2020-01-08 | 2020-05-12 | 武汉优联百康医疗科技有限公司 | Novel tibial prosthesis locking handle and preparation method thereof |
| CN111227995A (en) * | 2020-03-19 | 2020-06-05 | 闫新峰 | Femoral head prosthesis component |
| CN111227995B (en) * | 2020-03-19 | 2022-02-15 | 闫新峰 | Femoral head prosthesis component |
| CN115869114A (en) * | 2023-01-31 | 2023-03-31 | 北京爱康宜诚医疗器材有限公司 | Cartilage prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101019786B (en) | 2011-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101019786B (en) | Compound partial femoral head surface prosthesis | |
| Morscher et al. | Cementless fixation of" isoelastic" hip endoprostheses manufactured from plastic materials. | |
| Pramanik et al. | Chronology of total hip joint replacement and materials development | |
| ZWEYMÜLLER et al. | Biologic fixation of a press-fit titanium hip joint endoprosthesis. | |
| US5489306A (en) | Graduated porosity implant for fibro-osseous integration | |
| CN105105875A (en) | Biomimetic artificial hip joint with internal growth function | |
| US20080215160A1 (en) | Resurfacing-Hip Implant Construction Set | |
| CN101259047B (en) | Artificial full knee joint transposing prosthesis capable of reestablishing anterior cruciate ligament | |
| CN201624813U (en) | Proximal-fusion filling sheath assembled femoral shaft | |
| CN103505307B (en) | A kind of Biotype artificial hip joint femoral component | |
| CN209316157U (en) | A kind of ankle prosthesis shin bone sidepiece part | |
| Bechtold et al. | Bone ingrowth in the presence of particulate polyethylene: Synergy between interface motion and particulate polyethylene in periprosthetic tissue response | |
| CN109330748A (en) | A kind of ankle prosthesis shin bone sidepiece part | |
| CN211131549U (en) | Femoral implant | |
| CN2782050Y (en) | Biological type whole lip joint prothesis | |
| CN109106474A (en) | A kind of orthopaedics implant | |
| CN101416907A (en) | Artificial femur handle and artificial full hip-joint replacement prosthesis | |
| CN109730812B (en) | Focal cartilage defect prosthesis | |
| CN211067219U (en) | Hip joint prosthesis | |
| CN209661886U (en) | Toe joint prosthese | |
| CN110368140B (en) | Femoral implant | |
| CN211131550U (en) | Femoral implant | |
| CN103655006A (en) | Hip joint prosthesis | |
| CN204909736U (en) | Artificial knee joint femoral prosthesis of coarse thin layer in modified area | |
| CN219332113U (en) | Femoral stem and hip joint prosthesis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130927 |