CN203280543U - Micro-hole tantalum coating assembly type rotary knee joint prosthesis - Google Patents
Micro-hole tantalum coating assembly type rotary knee joint prosthesis Download PDFInfo
- Publication number
- CN203280543U CN203280543U CN201320219854XU CN201320219854U CN203280543U CN 203280543 U CN203280543 U CN 203280543U CN 201320219854X U CN201320219854X U CN 201320219854XU CN 201320219854 U CN201320219854 U CN 201320219854U CN 203280543 U CN203280543 U CN 203280543U
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- China
- Prior art keywords
- prosthesis
- tibia
- assembly type
- femur
- joint prosthesis
- Prior art date
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- Expired - Lifetime
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- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 229910052715 tantalum Inorganic materials 0.000 title claims abstract description 36
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 30
- 210000002303 tibia Anatomy 0.000 claims abstract description 44
- 210000000689 upper leg Anatomy 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 9
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229910000771 Vitallium Inorganic materials 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000000602 vitallium Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 210000004027 cell Anatomy 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 210000002449 bone cell Anatomy 0.000 abstract 1
- 238000007750 plasma spraying Methods 0.000 abstract 1
- 230000035755 proliferation Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000004409 osteocyte Anatomy 0.000 description 2
- 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 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 206010027336 Menstruation delayed Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004531 microgranule Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000001582 osteoblastic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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 provides a micro-hole tantalum coating assembly type rotary knee joint prosthesis which comprises a femur prosthesis and a tibia prosthesis which are connected together. Micro-hole tantalum coatings are sprayed on the whole or part of the surface of the femur prosthesis and on the whole or part of the surface of the tibia prosthesis. According to the scheme, the micro-hole tantalum coatings are arranged on the surface of the knee joint prosthesis in a plasma spraying mode, the anti-corrosion performance and the biocompatibility of the prosthesis are enhanced, strength is high, the prosthesis is resistant to abrasion, the adhesion function on human body cells is strong, good conditions are created for growth and proliferation of bone cells, and the effects that the micro-hole tantalum coating assembly type rotary knee joint prosthesis is stable for a long time and the service life is prolonged are achieved.
Description
Technical field
This utility model relates to the surgical implant technical field, refers to especially a kind of micropore tantalum coating assembly type rotation knee-joint prosthesis.
Background technology
The knee joint of human body has the functions such as heavy burden, transmitted load, rotation, be maximum, the most complicated joint of human body, have maximum stability while stretching, suitable motility is arranged again when crooked, realizing in the walking of various ground, run, the action such as jumping, also be very easy to simultaneously injured and by prosthese, replaced.At present, the knee-joint prosthesis of the biological fixation that commonly used and effective replacement knee in arthroplasty multiselect cobalt alloy, titanium alloy are made, and all parts that knee-joint prosthesis contacts with bone is carried out Plasma-sprayed Titanium Coating or hydroxyapatite coating layer or both mixed coatings, make and form the micropore raw surface layer on knee-joint prosthesis, for growing into of osteocyte creates conditions.But titanium alloy is easy to wear, easily cause the infiltration of abrasive dust microgranule to make the soft tissue blackening, and hydroxyapatite is absorbed within a certain period of time, loses corresponding effect, and late period, clinical effectiveness was not very good.
Through scholar's research, find that metal tantalum has very excellent resistance to corrosion and splendid biocompatibility, and the intensity of metal tantalum is high, wear-resistant, body is had no stimulation.Experiment has also proved, the adhesiving effect that is sprayed with the knee-joint prosthesis of tantalum coating and cell is stronger, grow into and propagation creates good conditions for osteoblastic, thereby make the better combination of prosthese and bone and soft tissue, reach effect steady in a long-term, increase the service life, avoid or reduce the secondary prosthesis.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of micropore tantalum coating assembly type rotation knee-joint prosthesis,, to improve the fixed effect of existing prosthese, increases the service life.
For solving the problems of the technologies described above, this utility model embodiment provides a kind of micropore tantalum coating assembly type rotation knee-joint prosthesis, comprise the femoral prosthesis and the tibial prosthesis that link together, the surface local of described femoral prosthesis and tibial prosthesis or all be coated with micropore tantalum coating.
Wherein, described femoral prosthesis comprises one broach, and an end of this femur broach is connected with an end of femoral shaft section, and the other end of described femoral shaft section is connected with condyle of femur.
Wherein, described tibial prosthesis comprises a tibia broach, and an end of this tibia broach is connected with an end of tibial shaft section, and the other end of described tibial shaft section is connected with an end of tibia support, the other end of described tibia support is connected with the tibia pad, and this tibia pad is connected by axle sleeve with described condyle of femur.
Further, described axle sleeve comprises horizontal rotating shaft and vertically rotating shaft, and described horizontal rotating shaft is connected with described condyle of femur, described vertical rotating shaft and described tibia pad be connected tibia support and be connected, be provided with between described axle sleeve and described condyle of femur to lock and pad.
Wherein, the material of described femur broach, femoral shaft section, condyle of femur, axle sleeve, tibia support, tibial shaft section and tibia broach is all titanium alloy or vitallium, and the material of described lock pad and tibia pad is all the polyethylene material.
Wherein, the thickness of described tantalum coating is 50-300um, and porosity is 10-40%.
Wherein, the bond strength of described tantalum coating is more than or equal to 35MPa.
Wherein, the roughness of described tantalum coating surface is more than or equal to 100um.
The beneficial effect of the technique scheme of this utility model embodiment is as follows:
In such scheme, by at the knee-joint prosthesis surface plasma, spraying the tantalum coating, corrosion resistance and the biocompatibility of prosthese have been strengthened, and intensity is high, wear-resistant, adhesive attraction to human body cell is stronger, is the growing into, breed and create good condition of osteocyte, reaches effect steady in a long-term and that increase the service life
Description of drawings
Fig. 1 is the front view of the micropore tantalum coating assembly type rotation knee-joint prosthesis of this utility model embodiment;
Fig. 2 is the cutaway view of the micropore tantalum coating assembly type rotation knee endoprosthesis prosthese of this utility model embodiment.
［ main element symbol description ］
1: the femur broach;
2: the femoral shaft section;
3: condyle of femur;
4: axle sleeve;
5: the tibia pad;
6: tibia support;
7: the tibial shaft section;
8: the tibia broach;
9: laterally rotating shaft;
10: vertically rotating shaft;
11: liner;
12: the lock pad.
The specific embodiment
, for making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
This utility model is poor for existing knee-joint prosthesis fixed effect, and the problem that service life is short provides a kind of micropore tantalum coating assembly type rotation knee-joint prosthesis.
As shown in Figure 1, the micropore tantalum coating assembly type rotation knee-joint prosthesis that this utility model embodiment provides, comprise the femoral prosthesis and the tibial prosthesis that link together, and described femoral prosthesis comprises one broach 1, femoral shaft section 2 and condyle of femur 3; Described tibial prosthesis comprises tibia support 6, tibial shaft section 7 and tibia broach 8.The surface local of described femoral prosthesis and tibial prosthesis or all be coated with micropore tantalum coating.
One end and the femoral shaft section 2 of described femur broach 1 are spirally connected, and an end of described femoral shaft section 2 is connected with condyle of femur 3, and described condyle of femur 3 one ends are provided with locating slot, and described femoral shaft section 2 is arranged in described locating slot by modes such as inlaying, weld, be spirally connected; Described condyle of femur 3 is connected with tibia pad 5 by axle sleeve 4, and described tibia pad 5 can play decompressing effect when people's lower limb is beated, and avoids friction and collision fierce between axle sleeve 4 and tibia support 6.
As shown in Figure 2, described axle sleeve 4 is T-shaped, comprise horizontal rotating shaft 9 and vertically rotating shaft 10, establish in rotatable being arranged in of described horizontal rotating shaft 9 in the condyle of femur 3 lower end hollow bushings of liner 11, can be with condyle of femur 3 fixing and do not affect the bending of knee-joint prosthesis, set up liner 11 and can prevent friction between horizontal rotating shaft 9 and condyle of femur 3; Described tibia pad 5 is equipped with centre bore with described tibia support 6, in described centre bore, liner is installed, to reduce the friction between parts.
The fixing insertion in described centre bore of described vertical rotating shaft 10, play the effect that connects condyle of femur 3 and tibia support 6, and fixed tibial pad 5 is on tibia support 6 simultaneously; Fixed installation one lock pad 12 between described axle sleeve 4 and described condyle of femur 3, when knee-joint prosthesis was crooked or beat, lock pad 12 can damping, and described tibia pad 5 is arranged on tibia support 6 upper ends, described tibia support 6 lower ends are connected with tibial shaft section 7, and the lower end of described tibial shaft section 7 is bolted with tibia broach 8.Wherein, described femur broach 1 is equipped with at least two oval-shaped grooves with the surface of described tibia broach 8, for human body cell increases, provides large bond area, is conducive to the fusion of cell and prosthese; The material of described femur broach 1, femoral shaft section 2, condyle of femur 3, axle sleeve 4, tibia support 6, tibial shaft section 7 and tibia broach 8 is all titanium alloy or vitallium, light durable, the material of described liner 11, lock pad 12 and tibia pad 5 is all the polyethylene material, certain elasticity and wear-resisting is arranged, described knee-joint prosthesis surface local or all be coated with micropore tantalum coating.
In such scheme, by at the knee-joint prosthesis surface plasma, spraying the tantalum coating, corrosion resistance and the biocompatibility of prosthese have been strengthened, and intensity is high, wear-resistant, adhesive attraction to human body cell is stronger, is the growing into, breed and create good condition of cell, reaches effect steady in a long-term and that increase the service life.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. micropore tantalum coating assembly type rotation knee-joint prosthesis, comprise the femoral prosthesis and the tibial prosthesis that link together, it is characterized in that, described femoral prosthesis and tibial prosthesis outer surface are local or all be coated with micropore tantalum coating.
2. micropore tantalum coating assembly type according to claim 1 rotates knee-joint prosthesis, it is characterized in that, described femoral prosthesis comprises one broach, and an end of this femur broach is connected with an end of femoral shaft section, and the other end of described femoral shaft section is connected with condyle of femur.
3. micropore tantalum coating assembly type according to claim 2 rotates knee-joint prosthesis, it is characterized in that, described tibial prosthesis comprises a tibia broach, one end of this tibia broach is connected with an end of tibial shaft section, the other end of described tibial shaft section is connected with an end of tibia support, the other end of described tibia support is connected with the tibia pad, and this tibia pad is connected by axle sleeve with described condyle of femur.
4. micropore tantalum coating assembly type according to claim 1 rotates knee-joint prosthesis, it is characterized in that, described axle sleeve comprises horizontal rotating shaft and vertically rotating shaft, described horizontal rotating shaft is connected with described condyle of femur, described vertical rotating shaft and described tibia pad be connected tibia support and be connected, be provided with the lock pad between described axle sleeve and described condyle of femur.
5. micropore tantalum coating assembly type according to claim 1 rotates knee-joint prosthesis, it is characterized in that, the material of described femur broach, femoral shaft section, condyle of femur, axle sleeve, tibia support, tibial shaft section and tibia broach is titanium alloy or vitallium, and the material of described lock pad and tibia pad is the polyethylene material.
6. according to claim 1～5 described micropore tantalum of any one coating assembly type rotation knee-joint prosthesis, is characterized in that, the thickness of described tantalum coating is 50-300um, and porosity is 10-40%.
7. according to claim 1～5 described micropore tantalum of any one coating assembly type rotation knee-joint prosthesis, is characterized in that, the bond strength of described tantalum coating is more than or equal to 35MPa.
8. according to claim 1～5 described micropore tantalum of any one coating assembly type rotation knee-joint prosthesis, is characterized in that, the roughness of described tantalum coating surface is more than or equal to 100um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320219854XU CN203280543U (en) | 2013-04-26 | 2013-04-26 | Micro-hole tantalum coating assembly type rotary knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320219854XU CN203280543U (en) | 2013-04-26 | 2013-04-26 | Micro-hole tantalum coating assembly type rotary knee joint prosthesis |
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| Publication Number | Publication Date |
|---|---|
| CN203280543U true CN203280543U (en) | 2013-11-13 |
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|---|---|---|---|
| CN201320219854XU Expired - Lifetime CN203280543U (en) | 2013-04-26 | 2013-04-26 | Micro-hole tantalum coating assembly type rotary knee joint prosthesis |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490493A (en) * | 2014-12-29 | 2015-04-08 | 北京市春立正达医疗器械股份有限公司 | Knee-joint rotating platform prosthesis |
| CN104887357A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Artificial elbow joint |
| CN105012052A (en) * | 2015-06-29 | 2015-11-04 | 北京贝思达生物技术有限公司 | Artificial knee joint |
| CN106421892A (en) * | 2016-09-30 | 2017-02-22 | 中国人民解放军总医院 | Titanium-based tantalum coating bio-scaffold material and preparation method thereof |
| CN106726016A (en) * | 2017-03-03 | 2017-05-31 | 叶川 | A kind of knee joint prosthesis system and human synovial repair system |
| CN107647945A (en) * | 2017-10-16 | 2018-02-02 | 北京爱康宜诚医疗器材有限公司 | Elbow joint prosthese |
| CN110731837A (en) * | 2019-09-19 | 2020-01-31 | 北京力达康科技有限公司 | ligament retention type tibia tumor assembly type half knee joint prosthesis |
-
2013
- 2013-04-26 CN CN201320219854XU patent/CN203280543U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490493A (en) * | 2014-12-29 | 2015-04-08 | 北京市春立正达医疗器械股份有限公司 | Knee-joint rotating platform prosthesis |
| CN104887357A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Artificial elbow joint |
| CN105012052A (en) * | 2015-06-29 | 2015-11-04 | 北京贝思达生物技术有限公司 | Artificial knee joint |
| CN105012052B (en) * | 2015-06-29 | 2017-02-01 | 北京贝思达生物技术有限公司 | Artificial knee joint |
| CN106421892A (en) * | 2016-09-30 | 2017-02-22 | 中国人民解放军总医院 | Titanium-based tantalum coating bio-scaffold material and preparation method thereof |
| CN106726016A (en) * | 2017-03-03 | 2017-05-31 | 叶川 | A kind of knee joint prosthesis system and human synovial repair system |
| CN107647945A (en) * | 2017-10-16 | 2018-02-02 | 北京爱康宜诚医疗器材有限公司 | Elbow joint prosthese |
| CN107647945B (en) * | 2017-10-16 | 2023-08-01 | 北京爱康宜诚医疗器材有限公司 | Elbow joint prosthesis |
| CN110731837A (en) * | 2019-09-19 | 2020-01-31 | 北京力达康科技有限公司 | ligament retention type tibia tumor assembly type half knee joint prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |