CN202154767U - Low-abrasion loss artificial tibial platform prosthesis - Google Patents
Low-abrasion loss artificial tibial platform prosthesis Download PDFInfo
- Publication number
- CN202154767U CN202154767U CN 201120223923 CN201120223923U CN202154767U CN 202154767 U CN202154767 U CN 202154767U CN 201120223923 CN201120223923 CN 201120223923 CN 201120223923 U CN201120223923 U CN 201120223923U CN 202154767 U CN202154767 U CN 202154767U
- Authority
- CN
- China
- Prior art keywords
- molecular weight
- sealed
- weight polyethylene
- high molecular
- tibial plateau
- 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 - Lifetime
Links
- 238000005299 abrasion Methods 0.000 title abstract 2
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000007943 implant Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 7
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 7
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 6
- 210000004409 osteocyte Anatomy 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 4
- 238000007750 plasma spraying Methods 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 238000005234 chemical deposition Methods 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 claims description 2
- 238000007517 polishing process Methods 0.000 abstract 1
- 210000002414 leg Anatomy 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 210000002540 macrophage Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
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
- A61F2/38—Joints for elbows or knees
-
- 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)
- Physical Education & Sports Medicine (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)
Abstract
The utility model relates to a low-abrasion loss artificial tibial platform prosthesis comprising a locking column, a locking surface and a fixed column with wings, wherein the locking column is provided with conical degree and designed with a small step which is used for preventing a high molecular weight polyethylene gasket from falling off, and embedded in a high molecular weight polyethylene gasket, the locking surface is formed by mechanical processing, so that the size precision is higher, and the surface is subjected to high polishing process, is contacted with the high molecular weight polyethylene gasket and plays the role of supporting, the fixed column with the wings can be planted in the medullary space of a human body directly, also can be connected with a lengthening bar and then planted in the medullary space of the human body to obtain the original planting stability.
Description
Technical field
This utility model relates to a kind of low wear extent tibial plateau prosthesis prosthese.
Background technology
The artificial knee replacement surgery has become a kind of general relatively surgical operation in medical circle at present, having significant effect aspect the diseases such as treatment rheumatoid arthritis, osteoarthritis, in knee-joint prosthesis; Wearing and tearing between the tibial plateau prosthese of ultra-high molecular weight polyethylene tibial insert and medical metal material are to influence a prosthese key factor in service life, and it is big or small that the processing mode of both lock modes and tibial plateau prosthetic surface has determined that all wear extent gets, at present; Mostly tibial plateau is the die casting and molding manufacturing; Surface quality is coarse, thereby has increased the wearing and tearing of High molecular weight polyethylene tibial insert, the fine particle of wearing and tearing; Form macrophage; Quicken the bone dissolving, finally caused the loosening of prosthese, the service life of having reduced prosthese.
The utility model content
The purpose of this utility model is for overcoming above-mentioned defective a kind of low wear extent tibial plateau prosthesis prosthese to be provided.
For realizing above-mentioned purpose, this utility model is taked following design:
A kind of low wear extent tibial plateau prosthesis prosthese includes sealed post, sealed, band wing fixed leg, it is characterized in that sealed cornice has taper design; And be designed with the small stair that prevents that the High molecular weight polyethylene pad from coming off, be embedded in the High molecular weight polyethylene tibial insert, sealed is adopted machining to form; Dimensional accuracy is higher; And high polishing is adopted on the surface, contact with the HMW tibial insert and it is played a supportive role, and is with directly implant into body pulp cavity of wing fixed leg; The implant into body pulp cavity is stable to obtain initial implantation again after also can connecting the extension bar assembly
The utility model has the advantages that:
1, the low wear extent tibial plateau prosthesis prosthese of this utility model includes sealed post, sealed, band wing fixed leg, and said sealed cornice has taper design, and is designed with the small stair that prevents that the High molecular weight polyethylene pad from coming off; Sealed post one has three, and uniform distribution, and this layout can limit the High molecular weight polyethylene pad to moving all around; Sealed more firm, thus the wearing and tearing of minimizing High molecular weight polyethylene pad, and sealed is adopted machining to form; Dimensional accuracy is higher, and high polishing is adopted, sealed surface roughness reduction after the high polishing in the surface; Paint Gloss, under the situation of High molecular weight polyethylene pad generation fine motion, can not produce wearing and tearing to the High molecular weight polyethylene pad; Band wing fixed leg is the implant into body pulp cavity directly, also can connect behind the extension bar assembly implant into body pulp cavity again, and is stable to obtain initial implantation; The method of routine before connected mode can adopt, for example tapering connects, and is threaded etc.
2, the low wear extent tibial plateau prosthesis prosthese of this utility model, its band wing fixed leg surface has medical metal powder micro porous coating, and this coating has the function of inducing the osteocyte growth.
3, the low wear extent tibial plateau prosthesis prosthese of this utility model, its band wing fixed leg surface has hydroxyapatite coating layer, and this coating has the function of inducing the osteocyte growth.
4, the low wear extent tibial plateau prosthesis prosthese of this utility model, it uses medical metal to process, so it has good biocompatibility.
Description of drawings
Fig. 1 is the embodiment sketch map of the low wear extent tibial plateau prosthesis prosthese of this utility model
Fig. 2 is this utility model schematic top plan view
Another embodiment sketch map of Fig. 3 this utility model
The another embodiment sketch map of Fig. 4 this utility model
The embodiment sketch map of Fig. 5 this utility model postoperative user mode
The specific embodiment
Explain further details below in conjunction with the practical implementation of accompanying drawing to this utility model.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, this utility model hangs down wear extent tibial plateau prosthesis prosthese, includes sealed post 1, sealed 2, band wing fixed leg 3; Said sealed post 1 has taper design, and is designed with the small stair that prevents that High molecular weight polyethylene pad 4 from coming off, and sealed post 1 one has three; And uniform distribution, this layout can limit High molecular weight polyethylene pad 4 to moving all around, and be sealed more firm; Thereby reduce the wearing and tearing of High molecular weight polyethylene pad 4, sealed 2 is adopted machining to form, and dimensional accuracy is higher; And high polishing is adopted on the surface, and sealed 2 roughness reduces after the high polishing, and be Paint Gloss; Take place under the situation of fine motion at High molecular weight polyethylene pad 4, can not produce wearing and tearing to High molecular weight polyethylene pad 4, band wing fixed leg is implant into body pulp cavity 5 directly; Also can connect behind the extension bar assembly implant into body pulp cavity 5 again, to obtain initial implantation stability, conventional method before connected mode can adopt; For example tapering connects, and is threaded etc.
This utility model hangs down wear extent tibial plateau prosthesis prosthese; Its band wing fixed leg 3 surfaces have medical metal powder micro porous coating; This medical metal powder micro porous coating has the function of inducing the osteocyte growth; Medical metal powder micro porous coating adopts high-temperature plasma spraying or agglomerating process to obtain, and because of this spraying or sintering method are known technology, does not elaborate at this.
This utility model hangs down wear extent tibial plateau prosthesis prosthese; Its band wing fixed leg 3 surfaces have hydroxyapatite coating layer; This hydroxyapatite coating layer has the function of inducing the osteocyte growth; Hydroxyapatite coating layer adopts the process of high-temperature plasma spraying or chemical deposition to obtain, and because of said method is known technology, does not elaborate at this.
This utility model hangs down wear extent tibial plateau prosthesis prosthese, adopt medical metal to process, so it has good biocompatibility.
Claims (6)
1. one kind low wear extent tibial plateau prosthesis prosthese is characterized in that, it includes sealed post (1), sealed (2), band wing fixed leg (3); Said sealed post (1) has taper design, and is designed with the small stair that prevents that the High molecular weight polyethylene pad from coming off, and sealed post (1) has three; And uniform distribution, this layout can limit High molecular weight polyethylene pad (4) to moving all around, and be sealed more firm; Thereby reduce the wearing and tearing of High molecular weight polyethylene pad (4), sealed (2) adopt machining to form, and dimensional accuracy is higher; And high polishing is adopted on the surface, and sealed (2) roughness reduces after the high polishing, and be Paint Gloss; Take place at High molecular weight polyethylene pad (4) under the situation of fine motion, can not produce wearing and tearing to High molecular weight polyethylene pad (4), band wing fixed leg is implant into body pulp cavity (5) directly; Also can connect behind the extension bar assembly implant into body pulp cavity (5) again, to obtain initial implantation stability, conventional method before connected mode can adopt; For example tapering connects, and is threaded etc.
2. low wear extent tibial plateau prosthesis prosthese according to claim 1 is characterized in that sealed post (1) has taper design, and is designed with the small stair that prevents that the High molecular weight polyethylene pad from coming off that sealed post (1) has three, and uniform distribution.
3. low wear extent tibial plateau prosthesis prosthese according to claim 1, sealed (2) adopt machining to form, and dimensional accuracy is higher, and high polishing is adopted on the surface.
4. low wear extent tibial plateau prosthesis prosthese according to claim 1; It is characterized in that; Band wing fixed leg (3) surface has medical metal powder micro porous coating; This medical metal powder micro porous coating has the function of inducing the osteocyte growth, and medical metal powder micro porous coating adopts high-temperature plasma spraying or agglomerating process to obtain.
5. low wear extent tibial plateau prosthesis prosthese according to claim 1; It is characterized in that; Band wing fixed leg (3) surface has hydroxyapatite coating layer; This hydroxyapatite coating layer has the function of inducing the osteocyte growth, and hydroxyapatite coating layer adopts the process of high-temperature plasma spraying or chemical deposition to obtain.
6. low wear extent tibial plateau prosthesis prosthese according to claim 1 is characterized in that, it adopts medical metal to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120223923 CN202154767U (en) | 2011-06-29 | 2011-06-29 | Low-abrasion loss artificial tibial platform prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120223923 CN202154767U (en) | 2011-06-29 | 2011-06-29 | Low-abrasion loss artificial tibial platform prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202154767U true CN202154767U (en) | 2012-03-07 |
Family
ID=45762421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120223923 Expired - Lifetime CN202154767U (en) | 2011-06-29 | 2011-06-29 | Low-abrasion loss artificial tibial platform prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202154767U (en) |
Cited By (4)
| 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 |
| CN107361883A (en) * | 2017-08-01 | 2017-11-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN110916854A (en) * | 2019-12-31 | 2020-03-27 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis |
| CN113425470A (en) * | 2021-06-24 | 2021-09-24 | 北京市春立正达医疗器械股份有限公司 | Toe joint prosthesis with low osteotomy amount |
-
2011
- 2011-06-29 CN CN 201120223923 patent/CN202154767U/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| CN107361883A (en) * | 2017-08-01 | 2017-11-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN107361883B (en) * | 2017-08-01 | 2019-07-09 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN110916854A (en) * | 2019-12-31 | 2020-03-27 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis |
| CN113425470A (en) * | 2021-06-24 | 2021-09-24 | 北京市春立正达医疗器械股份有限公司 | Toe joint prosthesis with low osteotomy amount |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Chaoyang Inventor after: Liu Kunxi Inventor before: Liu Kunxi |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: Beijing AKEC Medical Co., Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee before: Beijing AKEC Medical Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |