CN109662811A - A kind of artificial knee joint prosthesis - Google Patents
A kind of artificial knee joint prosthesis Download PDFInfo
- Publication number
- CN109662811A CN109662811A CN201910154430.1A CN201910154430A CN109662811A CN 109662811 A CN109662811 A CN 109662811A CN 201910154430 A CN201910154430 A CN 201910154430A CN 109662811 A CN109662811 A CN 109662811A
- Authority
- CN
- China
- Prior art keywords
- potsherd
- prosthesis
- lateral femoral
- femoral condyle
- supporting mass
- 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.)
- Pending
Links
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 29
- 210000002303 tibia Anatomy 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 210000000689 upper leg Anatomy 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 230000007774 longterm Effects 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 230000008467 tissue growth Effects 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims 1
- 239000010941 cobalt Substances 0.000 claims 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 229920002521 macromolecule Polymers 0.000 abstract description 7
- 229910021645 metal ion Inorganic materials 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 8
- 210000000988 bone and bone Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 210000001124 body fluid Anatomy 0.000 description 4
- 239000010839 body fluid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 210000003127 knee Anatomy 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003462 bioceramic Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- A61F2/3859—Femoral components
-
- 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
- A61F2/389—Tibial components
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
Abstract
The invention discloses a kind of artificial knee joint prosthesis, including lateral femoral condyle prosthesis, liner, tibial plateau support, the liner is located in tibial plateau support, it further include potsherd and supporting mass, the potsherd is one group of potsherd, one group of potsherd is distributed across on supporting mass, and the outer surface of lateral femoral condyle prosthesis is equipped with the groove for accommodating supporting mass, and it is secondary that the convex outward of potsherd contacts composition friction with the upper surface of liner.Several potsherds are distributed on lateral femoral condyle prosthesis in the knee-joint prosthesis, lateral femoral condyle prosthesis and shin bone liner are separated, lateral femoral condyle prosthesis and shin bone pad wear amount are reduced；Friction between metal and macromolecule polymer material is changed into the friction of metal and ceramics, reduce metal ion caused by metal and macromolecule friction to be precipitated, potsherd dispersed placement keeps potsherd not easily broken, mitigate kneed quality, keep patient motion lighter and handier, and there is certain impact resistance and Noise Reduction.
Description
Technical field
The present invention relates to biomedical engineering orthopaedics implant prosthese technical fields, close more particularly, to a kind of artificial knee
Save prosthese.
Background technique
Total knee replacement is that a kind of effective clinic of injury of knee joint caused by treating because of wound or disease is controlled
Treatment method.Artificial knee joint system is made of lateral femoral condyle prosthesis, shin bone liner, tibial plateau support.It is closed as artificial knee is applied to
The biomaterial of section prosthese will not only reach good repair, mitigate patient's slight illness, restore outside knee joint function, more important
Be cannot have an adverse effect to the tissue around human body knee joint.
Common knee-joint prosthesis is made of metal lateral femoral condyle prosthesis, polyethylene shin bone liner and metal tibial platform support.
Lateral femoral condyle prosthesis and shin bone liner constitute friction pair.The artificial knee joint type clinically used at present is metal condyle of femur
Prosthese and macromolecule shin bone liner are with pair.With the secondary friction pair formed in long-term process of friction and wear, there are toxic for this
Metal ion is precipitated, and accumulation will lead to chronic disease to a certain concentration in human body, while wear debris can induce Periprosthetic
Bone tissue generate bone dissolution；This is very high with the wear rate that the secondary friction pair formed pads macromolecule shin bone, most common height
Molecular material is ultra-high molecular weight polyethylene, and a year abrasion loss is about 0.1-0.2mm, in long-term friction process, be will lead to
The thickness of macromolecular lining is constantly reduced, and then influences the intensity of shin bone liner.In addition, there is also the artificial knees of another type to close
Save prosthese: ceramic lateral femoral condyle prosthesis and macromolecule shin bone liner are with pair, this has good wearability with secondary tool, and abrasion loss is very
Small, also there is no metal ions to be precipitated, and has good development prospect, but due to ceramic fragility inherently, causes
Ceramic lateral femoral condyle prosthesis is easy to break, and at present also in the laboratory research stage, there is no clinical applications.
Therefore, the friction for reducing lateral femoral condyle prosthesis and shin bone liner, reduces the abrasion loss of shin bone liner, improves it and uses the longevity
Life is the necessity for improving Quality of Life of Patients.
Summary of the invention
In view of the shortcomings of the prior art, technical problem to be solved by the invention is to provide a kind of artificial knee joint prosthesis, with
Reach and reduce the abrasion of lateral femoral condyle prosthesis and liner, reduce ceramic fragmentation risk, reduces Metal ion release, it is false to extend knee joint
The purpose of body service life.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
The artificial knee joint prosthesis, including lateral femoral condyle prosthesis, liner, tibial plateau support, the liner are located at tibial plateau
It further include potsherd and supporting mass in support, the potsherd is one group of potsherd, and one group of potsherd is distributed across supporting mass
On, the outer surface of lateral femoral condyle prosthesis is equipped with the groove for accommodating supporting mass, the convex outward of potsherd and the upper surface of liner
It is secondary that contact constitutes friction.
Preferably, the outer peripheral surface of the potsherd and supporting mass connected component is equipped with groove or protrusion；The pottery
Groove on tile is helicla flute.
Preferably, the potsherd has convex outward and inner sunken face, convex outward protrudes from the outer of supporting mass
Surface or with the outer surface of supporting mass in same curved surface.
Preferably, the convex outward of the potsherd protrudes from outer surface or and the lateral femoral condyle prosthesis of lateral femoral condyle prosthesis
Outer surface in same curved surface.
Preferably, the curvature of the potsherd convex outward is consistent with the outer surface curvature of lateral femoral condyle prosthesis.
Preferably, the lateral femoral condyle prosthesis has two condyle outer surfaces, it is equipped on two condyle outer surfaces for accommodating branch
The groove of body is held, groove curvature is consistent with the outer surface curvature of lateral femoral condyle prosthesis.
Preferably, the shape of the potsherd is cylinder and/or prism.
Preferably, the supporting mass and liner be high molecular polymer or its compound or surface-modified, it is described
Lateral femoral condyle prosthesis is titanium and its alloy or tantalum and its alloy or medical stainless steel or cochrome.
Preferably, the inner surface of the lateral femoral condyle prosthesis and the lower surface of tibial plateau support are equipped with and are suitable for human body
Tissue growth connects, one group of hole of the clinical long-term connection effect of enhancing convenient for biology.
Preferably, the supporting mass and ceramics are whole manufacture, then the bearing being connected as one after whole manufacture
Body and ceramics are assemblied in inside the groove of lateral femoral condyle prosthesis.
Compared with prior art, the present invention having the advantage that
Several potsherds are distributed on lateral femoral condyle prosthesis in the present invention, it, will be golden instead of traditional metal lateral femoral condyle prosthesis
Belong to and high molecular polymer liner between friction be changed into ceramics and high molecular polymer pad between friction, while potsherd it
Between have gap, accommodate lubricating fluid, thus reduce lateral femoral condyle prosthesis and shin bone liner coefficient of friction, reduce abrasion loss, subtract
Metal ion precipitation is lacked；The fragmentation risk of ceramic condyle of femur type prosthese can also be reduced simultaneously；Mitigate kneed quality,
Keep patient motion lighter and handier；The supporting mass and liner of high molecular polymer have certain impact resistance and Noise Reduction；Pottery
Tile only needs to finish the face with gasket contacts, other faces without processing, reduce processing technology step, reduce manufacture at
This.
Detailed description of the invention
Content expressed by each width attached drawing of this specification and the label in figure are briefly described below:
Fig. 1 is a kind of structural schematic diagram of knee-joint prosthesis of the present invention.
Fig. 2 is a kind of structural schematic diagram of potsherd on lateral femoral condyle prosthesis in Fig. 1.
Fig. 3 is potsherd another kind structural schematic diagram on lateral femoral condyle prosthesis in Fig. 1.
Fig. 4 is knee-joint prosthesis another kind structural schematic diagram of the present invention.
Fig. 5 is that shin bone pads a kind of upper structural schematic diagram of potsherd in Fig. 4.
Fig. 6 is that shin bone pads upper potsherd another kind structural schematic diagram in Fig. 4.
In figure: 1. lateral femoral condyle prosthesis, 201. potsherds I, 202. potsherds II, 3. shin bones liner, 4. tibial plateau supports, 5.
Supporting mass.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation.
Artificial knee joint prosthesis, including lateral femoral condyle prosthesis, shin bone liner, tibial plateau support, it is flat that shin bone liner is located at shin bone
In platform support, lateral femoral condyle prosthesis outer surface is corresponding with shin bone liner upper surface, and lateral femoral condyle prosthesis outer surface or shin bone pad upper table
Face is equipped with for reducing the potsherd to rub between the two, and potsherd is one group, one group of potsherd discrete type distribution, concretely
It is evenly or unevenly spaced arrangement.Non-uniform spacing arrangement can increase contact area, to reduce contact stress.
Wherein, the lower surface of the inner surface of lateral femoral condyle prosthesis and tibial plateau support be equipped be suitable for tissue growth,
Convenient for biology connection, one group of hole of the clinical long-term connection effect of enhancing, one group of Kong Weiyi group micropore；Micropore can make bone tissue long
To the inside, reinforce the connection in joint and human body host bone, the reliability that prosthese is fixed in human body can be improved, guarantees using effect
Fruit.
The present invention is illustrated below by specific embodiment, specific as follows:
As shown in Figure 1 to Figure 3, the artificial knee joint prosthesis, including lateral femoral condyle prosthesis 1, potsherd II 202, shin bone liner
3, tibial plateau support 4 and supporting mass 5, wherein supporting mass and liner be high molecular polymer or its compound or surface-modified,
Lateral femoral condyle prosthesis is titanium and its alloy or tantalum and its alloy or medical stainless steel or cochrome.
Potsherd II is one group of potsherd, and one group of potsherd is distributed across on supporting mass, the outer surface of lateral femoral condyle prosthesis
Equipped with the groove for accommodating supporting mass, it is secondary that the convex outward of potsherd contacts composition friction with the upper surface of liner.Potsherd
Contact surface with femoral prosthesis reduces processing technology, reduces cost, while having certain impact resistance and drop without finishing
The effect of making an uproar.
The shape of potsherd is cylinder and/or polygon prism, and one group of potsherd non-uniform spacing arrangement can increase contact surface
Product.
Two end faces of potsherd are arc；Specifically, potsherd has convex outward and inner sunken face, convex outward
Protrude from the outer surface of supporting mass or with the outer surface of supporting mass in same curved surface.The convex outward of potsherd protrudes from femur
The outer surface of condyle prosthese or with the outer surface of lateral femoral condyle prosthesis in same curved surface.The curvature and condyle of femur of potsherd convex outward
The outer surface of prosthese is consistent.Lateral femoral condyle prosthesis has two condyle outer surfaces, is equipped on two condyle outer surfaces for accommodating supporting mass
Groove, groove curvature are consistent with the outer surface of lateral femoral condyle prosthesis.Uniform force, it is reliable and stable.
The outer peripheral surface of potsherd and supporting mass connected component is equipped with groove or protrusion.Preferably, the groove on potsherd
For helicla flute.Supporting mass is high molecular polymer, and potsherd is embedded in high molecular polymer, has high molecular polymerization in groove
Object, the setting of groove increase the withdrawal force and binding force of potsherd, keep potsherd fixation stronger.
There is certain gap between adjacent ceramic piece, can be used for storing human body fluid in gap；And in the upper of liner
Surface is equipped with one group of hole, and one group of hole is one group of micro- hole, for storing human body fluid；The contact that lubrication potsherd is padded with shin bone
Face reduces the two friction.
As shown in Figures 4 to 6, the artificial knee joint prosthesis, including lateral femoral condyle prosthesis, potsherd I 201, shin bone liner and
Tibial plateau support, lateral femoral condyle prosthesis 1 are metal structure, are connected convenient for lateral femoral condyle prosthesis with skeleton.Potsherd I is quadrangular
Shape body or hexagonal prisms or cylindrical body, shin bone liner 3 effect be similar to meniscus structure, the above is half a month arc, below Cheng Ping
Mesa-shaped, top are contacted with lateral femoral condyle prosthesis 1, and lower part and tibial plateau support 4 are fixed, and potsherd I is embedded in shin bone liner 3 to recessed
In on the semilune curved surface of certain radian.
Potsherd I protrudes certain altitude, and the preparation method of shin bone liner 3 includes injection molding or 3D increases material manufacturing technology, femur
Condyle prosthese and powder metallurgy sintered method or plasma spraying method can be used for tibial plateau support preparation method or 3 D-printing is rapid-result fastly
Type technology.
The material of shin bone liner and supporting mass uses high molecular polymer, preferably ultra-high molecular weight polyethylene, potsherd I
Material is bioceramic, preferably aluminium oxide ceramics, and potsherd I is padded with shin bone to be linked by filled polyethylene material.
Potsherd and the outer peripheral surface of shin bone liner coupling part are equipped with groove or protrusion；Preferably, groove is helicla flute,
Groove is placed in shin bone liner, increases the withdrawal force and binding force of potsherd, and potsherd is fixed reliable.
The outer surface of lateral femoral condyle prosthesis is equipped with one group of hole, and one group of hole is one group of micro- hole, for storing human body fluid, lubricates stock
The contact surface of bone condyle prosthese and potsherd reduces the two friction, reduces abrasion loss.Between having centainly between adjacent ceramic piece
Gap, can be used for storing human body fluid in gap, the contact surface of lubrication potsherd and shin bone liner, both reduce friction.The two knot
The abrasion loss of structure collective effect, potsherd and lateral femoral condyle prosthesis is very small.
Supporting mass and ceramics are whole manufacture, then the supporting mass and ceramics that are connected as one after whole manufacture are assemblied in stock
Inside the groove of bone condyle prosthese, stable structure is reliable.
Above or on lateral femoral condyle prosthesis several potsherds are distributed in shin bone liner in the knee-joint prosthesis, by lateral femoral condyle prosthesis
It is separated with shin bone liner, reduces the coefficient of friction of lateral femoral condyle prosthesis and shin bone liner, reduce abrasion loss；It will be between metal and macromolecule
Friction be changed into metal and ceramics friction, reduce metal and macromolecule friction caused by metal ion be precipitated, potsherd
Discrete type arrangement, ceramic chip structure intensity is not easily broken greatly, mitigates kneed quality, keeps patient motion lighter and handier.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, if use the improvement for the various unsubstantialities that conception and technical scheme of the invention carry out, or it is not improved will
Conception and technical scheme of the invention directly apply to other occasions, within the scope of the present invention.
Claims (10)
1. a kind of artificial knee joint prosthesis, including lateral femoral condyle prosthesis, liner, tibial plateau support, the liner is located at tibial plateau
In support, it is characterised in that: further include potsherd and supporting mass, the potsherd is one group of potsherd, and one group of potsherd disperses cloth
It sets on supporting mass, the outer surface of lateral femoral condyle prosthesis is equipped with the groove for accommodating supporting mass, the convex outward and lining of potsherd
It is secondary that the upper surface contact of pad constitutes friction.
2. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the potsherd is outer with supporting mass connected component
Circumferential surface is equipped with groove or protrusion；Groove on potsherd is helicla flute.
3. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the potsherd has convex outward and interior concave curved
Face, convex outward protrude from the outer surface of supporting mass or with the outer surface of supporting mass in same curved surface.
4. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the convex outward of the potsherd protrudes from femur
The outer surface of condyle prosthese or with the outer surface of lateral femoral condyle prosthesis in same curved surface.
5. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the curvature and femur of the potsherd convex outward
The outer surface curvature of condyle prosthese is consistent.
6. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the lateral femoral condyle prosthesis has two condyle outer surfaces,
The groove for accommodating supporting mass is equipped on two condyle outer surfaces, groove curvature is consistent with the outer surface curvature of lateral femoral condyle prosthesis.
7. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the shape of the potsherd is cylinder and/or rib
Column.
8. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the supporting mass and liner are high molecular polymer
Or its compound or surface-modified, the lateral femoral condyle prosthesis are titanium and its alloy or tantalum and its alloy or medical stainless steel or cobalt
Evanohm.
9. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the inner surface and shin bone of the lateral femoral condyle prosthesis are flat
The lower surface of platform support, which is equipped with, is suitable for tissue growth, convenient for biological one group for connecting, enhancing clinical long-term connection effect
Hole.
10. artificial knee joint prosthesis as described in claim 1, it is characterised in that: the supporting mass and ceramics manufacture to be whole, then
The supporting mass and ceramics that are connected as one after whole manufacture are assemblied in inside the groove of lateral femoral condyle prosthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154430.1A CN109662811A (en) | 2019-03-01 | 2019-03-01 | A kind of artificial knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154430.1A CN109662811A (en) | 2019-03-01 | 2019-03-01 | A kind of artificial knee joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109662811A true CN109662811A (en) | 2019-04-23 |
Family
ID=66151696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910154430.1A Pending CN109662811A (en) | 2019-03-01 | 2019-03-01 | A kind of artificial knee joint prosthesis |
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| Country | Link |
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| CN (1) | CN109662811A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549700A (en) * | 1993-09-07 | 1996-08-27 | Ortho Development Corporation | Segmented prosthetic articulation |
| CN1596091A (en) * | 2001-12-04 | 2005-03-16 | 迪斯酋有限公司 | Implants for load bearing applications |
| CN102488573A (en) * | 2011-11-11 | 2012-06-13 | 上海交通大学 | Artificial acetabulum made of discrete ceramic cylinders |
| CN102793594A (en) * | 2012-08-18 | 2012-11-28 | 深圳清华大学研究院 | Artificial knee joint |
| CN103222904A (en) * | 2013-04-27 | 2013-07-31 | 上海交通大学 | Distributed acetabular prosthesis |
| CN205885583U (en) * | 2016-03-03 | 2017-01-18 | 华中科技大学同济医学院附属同济医院 | Artifical full knee joint prosthesis |
-
2019
- 2019-03-01 CN CN201910154430.1A patent/CN109662811A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549700A (en) * | 1993-09-07 | 1996-08-27 | Ortho Development Corporation | Segmented prosthetic articulation |
| CN1596091A (en) * | 2001-12-04 | 2005-03-16 | 迪斯酋有限公司 | Implants for load bearing applications |
| CN102488573A (en) * | 2011-11-11 | 2012-06-13 | 上海交通大学 | Artificial acetabulum made of discrete ceramic cylinders |
| CN102793594A (en) * | 2012-08-18 | 2012-11-28 | 深圳清华大学研究院 | Artificial knee joint |
| CN103222904A (en) * | 2013-04-27 | 2013-07-31 | 上海交通大学 | Distributed acetabular prosthesis |
| CN205885583U (en) * | 2016-03-03 | 2017-01-18 | 华中科技大学同济医学院附属同济医院 | Artifical full knee joint prosthesis |
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