CN201879868U - Tantalum-coated elbow prosthesis - Google Patents
Tantalum-coated elbow prosthesis Download PDFInfo
- Publication number
- CN201879868U CN201879868U CN 201020663858 CN201020663858U CN201879868U CN 201879868 U CN201879868 U CN 201879868U CN 201020663858 CN201020663858 CN 201020663858 CN 201020663858 U CN201020663858 U CN 201020663858U CN 201879868 U CN201879868 U CN 201879868U
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- Prior art keywords
- ulna
- joint
- radius
- assembly
- handle body
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-
- 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
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- 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 an elbow prosthesis, in particular to an elbow prosthesis with a tantalum micropore coated surface, which comprises humerus components, ulna components and radius components, wherein the humerus components are used for being implanted into distal humerus marrow cavity, the ulna components are used for being implanted into proximal ulna marrow cavity and the radius components are used for being implanted into proximal radius marrow cavity. The humerus components, the ulna components and the radius components are composed of joints and levers of the components, the joints have the function of rotary motion to varying degrees in order to guarantee the motion of joints after the prosthesis is implanted, and the levers are used for being inserted into the marrow cavity in order to achieve the function of fixing the prosthesis. The joints of the humerus components and the joints of the ulna components are connected by the aid of a crankshaft capable of rotating and embedding, and joint bulbs of the radius components are connected with a proximal joint cotyle groove of the ulna components in an embedded and sleeved mode. The tantalum-coated elbow prosthesis has the advantages that the tantalum surface is coated on the outer surfaces of the levers and is in a mircopore structure so that fixation effect of the prosthesis inside a human body is improved and the service life of the prosthesis is prolonged.
Description
Technical field
This utility model relates to the artificial elbow joint prosthese, specially refers to the tantalum coating artificial elbow joint prosthese that a kind of surface is provided with the tantalum micro porous coating, belongs to the bio-medical composition application.
Background technology
Chinese patent description CN 1177469A and CN 101262834A disclose Qi Bing body smooth surface of two kinds of artificial elbow joint prosthese ，, imporosity respectively.Correlational study shows, the bone that such artificial prosthesis surface texture is unfavorable for implanting the back Periprosthetic is grown into and be stable in early days.At present, bio-ceramic coating material and micropore metal coating biology material have become the main direction that prosthetic surface is handled, are representative with hydroxyapatite (HA) and titanium (Ti) coating respectively.They are that technology by sintering or plasma spraying is with HA(Ca
10(PO
4)
6(OH)
2) and the Ti coating metal at medical stainless steel or Ti metal base surface, form coating composite material and increase the bone amount of growing into after prosthese is implanted, and reach prosthese stablizing effect in vivo with certain pore structure.Chinese patent description CN 201154007Y discloses a kind of hydroxyapatite coating layer artificial joint prosthesis, be provided with hydroxyapatite coating layer at prosthese handle body and prosthese elbow mortar outer surface, Chinese patent description CN 201154008Y then discloses a kind of titanium coating artificial joint prosthesis, is provided with the titanium coating at prosthese handle body and prosthese elbow mortar outer surface.
The middle of last century, tantalum (Ta) metallic biomaterial begins to enter field of medical applications.At first, the biocompatibility of tantalum metallic biomaterial and provide theoretical foundation as coating material in orthopedic applications for the tantalum metal in the characteristic that is better than titanium and other metallic biomaterials aspect chemical stability, the corrosion resistance, especially the tantalum coating has physical characteristic and the mechanical strength that is better than other biological coating, makes it have more feasibility in orthopaedic application.
Summary of the invention
The purpose of this utility model provides a kind of tantalum coating artificial elbow joint prosthese, and it overcomes the deficiency of present artificial prosthesis coating, improves artificial prosthesis at the intravital fixed effect of people, prolongs the service life of artificial prosthesis.
The technical solution of the utility model is: a kind of tantalum coating artificial elbow joint prosthese is provided, it comprises humeral component, the ulna assembly of implanting the proximal ulna medullary cavity that is used to implant far-end humerus medullary cavity and the radius assembly of implanting the proximal radius medullary cavity, said modules by the joint component of assembly Ji the Bing body partly constitute, the function that rotatablely moves that joint component has in various degree partly serves as a part of inserting medullary cavity to guarantee that prosthese is implanted the motion Bing body of posterior joint, reaches the effect of fixed fae body.It is characterized in that: handle body outer surface is enclosed with tantalum surface, and tantalum surface is a microcellular structure.
Described tantalum surface thickness is 30-800 μ m, and microporosity is 20%-50%.
The handle of described described humeral component is as cylinder or cone, and an end of cylinder or cone is thin, and the other end is thick slightly, Yi Bian and along increasing width, make butt end be the circular-arc central authorities that excessively also form and be bent axle; Ulna assembly near-end be sleeve structure and humeral component bent axle be nested and form the joint syndeton, sleeve structure is to remote extension and be tapered and form outward appearance linearly or the cylinder of camber line shape or cone handle body, the handle body extremely far is tapered by near, it is little circular-arc excessive that the near-end ulnad is, and far-end recovers linearly shape.Radius assembly near-end is that joint bulb and ulna assembly near-end radiad stretch out a mortar groove structure and be nested and form the joint syndeton, and the joint bulb is to remote extension and be tapered and form the outward appearance linearly cylinder or the cone handle body of shape.
Described handle inserts the part of corresponding medullary cavity when implanting as prosthese, the position that outer surface is enclosed with tantalum surface is the outer surface at handle body or any position of handle body.
The bent axle that described ulna assembly near-end is sleeve structure and humeral component is nested and forms the joint syndeton, and the internal layer of sleeve structure and two ends all are made up of polyethylene sleeve pipe and polyethylene jacket pad pad; To be the joint bulb with the mortar groove structure of ulnar side mortar be nested radius assembly near-end forms the joint and be connected, spherical hollow polyethylene liner of mortar groove liner, spherical hollow polyethylene liner is socketed on radius bulb outside, polyethylene liner and metal acetabular glass holder connect, prevent the direct contact between metal assembly, reduce the component wear after implanting.
Mortar groove structure is made up of the hemispheric metal acetabular cup and the inner hollow hemispherical polyethylene liner thereof of a hollow, hollow hemispherical polyethylene liner is socketed on radius bulb outside, hollow hemispherical polyethylene liner outside is connect by hemispheric metal elbow mortar glass holder, polyethylene liner is used to prevent that metal assembly from directly contacting, and reduces the component wear after implanting.。
Described handle body is that medical stainless steel 00Cr18Ni14Mo3 or 00Cr18Ni15Mo3N or titanium Ti or titanium alloy T i-6Al-4V or vitallium Co30Cr6Mo0.35C material are as matrix.
This utility model tantalum coating artificial elbow joint prosthese utilizes the higher mechanical strength of matrix material to provide stronger mechanical strength for prosthese; make prosthese the tired or damage of material under the situation of physiological loads of bearing human body and movement load, not occur; take good biocompatibility simultaneously; corrosion-resistant; wear-resistant; the high metal tantalum material of bond strength is as coating material; be coated with one deck tantalum micro porous coating at the matrix of prosthese and the contact portion of implanted skeleton; be that one of prosthetic surface creation has the micropore environment when the prosthese matrix surface being played the effect of strengthening and protecting, to increase bone amount of growing into and the prosthesis stability after prosthese is implanted.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described.
Fig. 1 is the structural representation of this utility model tantalum coating artificial elbow joint prosthese preferred embodiment;
Fig. 2 is the assembled sectional view of handle body, joint connection, head of radius and the elbow mortar part of this utility model tantalum coating artificial elbow joint prosthese;
Fig. 3 is the handle body of humeral component of this utility model tantalum coating artificial elbow joint prosthese and the structural representation of humeroulnar joint shaft portion;
Fig. 4 is the humeroulnar joint axle cutaway view of this utility model tantalum coating artificial elbow joint prosthese;
Among the figure: 1, humeral component; 2, ulna assembly; 3, radius assembly; 4, humeral component joint bent axle; 5, radius assembly joint casing; 6, ulna assembly and radius assembly connector; 7, humerus handle body; 8, radius handle body; 9, ulna handle body; 10, the outer field polyethylene sleeve gasket of humerus joint bent axle; 11, the polyethylene liner of capitulum radii periphery (being positioned at around the mortar groove of chi, radius connector); 12, chi, radius connector mortar groove; 13, capitulum radii; 14, the joint motions of humeral component restriction is protruding; 15, the ulnar joint casing clamp is prominent; 16, prosthese handle body tantalum coating; The polyethylene liner of 17 ulnar joint sleeve pipe both sides.
The specific embodiment
As shown in Figure 1, 2, 3, this utility model comprises humeral component 1, ulna assembly 2 and 3 three parts of radius assembly; 3 three assemblies all contain handle body and joint syndeton, and the spatial shape of medullary cavity of the shape of each assembly handle body and corresponding human body matches, and is convenient to the handle body and inserts corresponding medullary cavity; The handle body contour is over-drastic taper from coarse to fine, is used to prevent the displacement of sinking in medullary cavity of handle body; Humeral component is by forming from carefully being the circular-arc over-drastic joint syndeton of expanding to thick over-drastic cylinder or cone handle body 7 and a thicker end end, joint syndeton central authorities are bent axle 4, and are placed in that its outer radius joint casing 5, on every side polyethylene liner 10,17 are common to constitute the joint syndetons.Ulna assembly 1 can carry out limited flexion and extension (0-140 °) by rotatablely moving of joint syndeton with humeral component 2.There is a card lug structure 15 at the rear portion of ulnar joint sleeve pipe 5, limits protruding 14 in the joint motions that are subjected to humeral component and stops that time restriction ulna assembly and humeral component hyperextension move.
Humerus handle body 7, ulna handle body 8 and radius handle body 9 outer surfaces are enclosed with tantalum coating 16, and tantalum coating 16 thickness are 30-800 μ m, and microporosity is 20%-50%.
The mortar groove structure 12 that radius assembly 3 near-ends are joint bulb (capitulum radii) 13 with ulna assembly 2 near-end radiads stretch out a connector 6 is nested and forms the joint and is connected, and capitulum radii 13 is to remote extension and be tapered formation the outward appearance linearly cylinder or the cone handle body 8 of shape; Radius joint bulb 13 is that the axle center is rotated with the radius major axis in mortar groove 12, finishes preceding, the supination of revolving of radius.
Described ulna assembly near-end shown in Fig. 2,3,4 is that sleeve structure 5 is nested with humerus bent axle 4 and forms the joint syndeton, humerus bent axle 4 peripheries are with polyethylene sleeve pipe 10, respectively there is a polyethylene liner 17 ulna sleeve pipe both sides, prevent that metal assembly from directly contacting, and reduce the component wear after implanting.
The mortar groove 12 of the connector 6 that bulb of radius joint shown in Fig. 1,2 (capitulum radii) 13 and ulna assembly near-end radiad stretch out is nested and forms the joint syndeton, mortar groove structure 12 is made up of the cylindrical metal mortar cup 6 and the inner hollow cylindrical polyethylene liner 12 thereof of a hollow, hollow cylindrical polyethylene liner 11 is socketed on capitulum radii 13 outsides, hollow cylindrical polyethylene liner 11 outsides are by metal acetabular cup 6 sockets of cylindrical hollow, polyethylene liner can prevent that metal assembly from directly contacting, and reduces the wearing and tearing that the capitulum radii rotation causes assembly.
Described humerus handle body 7, ulna handle body 8 and radius handle body 9 outer surfaces are enclosed with tantalum coating 16, and the coating layer thickness of tantalum surface 6 is 30-800 μ m, and porosity is 20%-50%, and wherein coating layer thickness is 400 μ m, and porosity is 35% for preferred value; The position that coating is coated on above-mentioned handle body can be the top or any position of the handle body outer surface of handle body, and preferably coating lining position is at the outer surface of handle body.This tantalum micro porous coating is that one of prosthetic surface creation has the micropore environment when the prosthese matrix surface being played the effect of strengthening and protecting, to increase bone amount of growing into and the prosthesis stability after prosthese is implanted.
This utility model passes through at artificial elbow joint prosthese humerus handle body 7, ulna handle body 8 and radius handle body 9 surface parcel one deck 30-800 μ m, porosity is the tantalum surface 16 of 20%-50%, the roughness and the porosity of prosthetic surface have been increased, make prosthetic surface form the synosteosis face that existing matsurface has tiny hole again, increased the grappling area of skeleton and prosthese, also created prerequisite for the long people in hole of freshman bone tissue, set up a kind of synostosis between prosthese after feasible implantation the and skeleton and reach biological fixation, avoid the loosening and sinking of prosthese, thereby further guaranteed the fixed effect and the service life of prosthese.
With the body portion of materials such as medical stainless steel 00Cr18Ni14Mo3 or 00Cr18Ni15Mo3N, titanium Ti, titanium alloy T i-6Al-4V or vitallium Co30Cr6Mo0.35C as prosthese, utilize it to have the characteristics of higher mechanical strength, come artificial prosthesis that stronger mechanical strength is provided, make prosthese the tired or damage of material can under the situation of physiological loads of bearing human body and movement load, not occur; Use hard Al
2O
3Or SiC sand carries out sandblasting pretreatment as medium to the handle body 1 of artificial prosthesis matrix and the outer surface of elbow mortar cup 3, forms matsurface at the prosthese matrix surface, is beneficial to Bond Strength of Coating; Take good biocompatibility, corrosion-resistant, wear-resistant, the high metal tantalum material of bond strength as coating material; be coated with one deck tantalum micro porous coating at the matrix of prosthese and the contact portion of implanted skeleton; be that one of prosthetic surface creation has the micropore environment when the prosthese matrix surface being played the effect of strengthening and protecting, to increase bone amount of growing into and the prosthesis stability after prosthese is implanted.
In the prosthese preparation process, can prosthese be made according to the different state of an illness of patient and degree of impairment and have the radius assembly and not with the tantalum coating artificial elbow joint prosthese of radius assembly, the prosthese that does not have the radius assembly will not have ulnar side mortar and radius assembly.
The matrix material of the above prosthesis with tantalum coating such as medical stainless steel (00Cr18Ni14Mo3 or 00Cr18Ni15Mo3N), titanium (Ti), titanium alloy (Ti-6Al-4V) or vitallium (Co30Cr6Mo0.35C), it only is the specific embodiment of the comparatively typical several embodiment of this utility model, because the kind of medical medical stainless steel, simple metal and alloy is more, so this utility model is not limited to the matrix material of the mentioned artificial prosthesis of above-mentioned several embodiment.
The above; it only is the specific embodiment of this utility model preferred embodiment; this utility model is not limited to this embodiment; for those skilled in the art; in the category that this utility model provides, carry out the interpolation of technical characterictic and replace all belonging to scope of the present utility model; therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1. tantalum coating artificial elbow joint prosthese, it comprises humeral component (1), ulna assembly (2) and three assemblies of radius assembly of prosthese, each assembly is by corresponding handle body such as humerus handle body (7), ulna handle body (8) and radius handle body (9) and corresponding joint connector such as humerus bent axle (4), ulna sleeve pipe (5), ulnar side mortar (6), and capitulum radii (13), it is characterized in that: each assembly handle body outer surface is enclosed with tantalum coating (16), and tantalum coating (16) is a microcellular structure.
2. tantalum coating artificial elbow joint prosthese according to claim 1 is characterized in that: the described part of inserting corresponding skeletal bones pulp cavity when handle is implanted as prosthese of respectively organizing.
3. tantalum coating artificial elbow joint prosthese according to claim 1 is characterized in that: described tantalum surface (16) thickness is 30-800 μ m, and microporosity is 20%-50%.
4. tantalum coating artificial elbow joint prosthese according to claim 1, it is characterized in that: the handle body (7) of described humeral component is cylinder or cone, one end of cylinder or cone is thin, the other end is thick slightly, and, make butt end be the circular-arc central authorities that excessively also form and be bent axle (4) along increasing width on one side.
5. tantalum coating artificial elbow joint prosthese according to claim 1, it is characterized in that: described ulna assembly near-end be sleeve structure (5) with humeral component bent axle (4) be nested and form joint syndeton (2), sleeve structure (5) is to remote extension and be tapered and form outward appearance linearly or the cylinder of camber line shape or cone handle body (8).
6. tantalum coating artificial elbow joint prosthese according to claim 1, it is characterized in that: described radius assembly (3) near-end is that capitulum radii (13) stretches out a side mortar (12) that is connected capitulum radii (13) with ulna assembly near-end radiad, it in the side mortar (6) a cylindrical hollow groove (12), groove (12) is nested to form proximal radioulnar joint with capitulum radii (13), and capitulum radii (13) is that the radius handle body (8) and the formation outward appearance that is tapered are cone handle body to remote extension.
7. tantalum coating artificial elbow joint prosthese according to claim 1 is characterized in that: the position that described humerus handle body (7), ulna handle body (8) and radius handle body (9) outer surface are enclosed with tantalum surface (16) is the outer surface at handle body or any position of handle body.
8. tantalum coating artificial elbow joint prosthese according to claim 4 is characterized in that: described humeral component (1), ulna assembly (2) can carry out the limited flexion and extension in joint (0-140 °) after prosthese is implanted by rotatablely moving of joint syndeton such as humerus bent axle (4), ulna sleeve pipe (5); There is a card lug structure (15) at the rear portion of ulna assembly sleeve pipe (5), limits the motion of ulna assembly (2) hyperextension when stopping in the joint constraints that is subjected to humeral component (1) protruding (14); To be joint bulb (13) with mortar groove (12) in ulna assembly (2) near-end radiad stretches out a side mortar (6) be nested described radius assembly (3) near-end forms the joint and be connected, radius joint bulb (13) is that the axle center is rotated with the radius major axis in mortar groove (12), finishes preceding, the supination of revolving of radius; Described ulna sleeve structure (5) and the bent axle (4) of humeral component are nested and form the joint and be connected; The internal layer of ulna sleeve pipe (5) is polyethylene jacket (10), and two ends are that polyethylene jacket pad pad (17) is formed, and prevent that two metal assemblies from directly contacting, and reduces the motion wearing and tearing of implanting the back assembly.
9. tantalum coating artificial elbow joint prosthese according to claim 5, it is characterized in that: to be joint bulb (13) with the mortar groove (12) of ulna assembly (2) proximal ulna side mortar (6) be nested described radius assembly near-end forms the joint and be connected, mortar groove (12) is the inner hollow structure of cylindrical metal mortar cup (6), mortar groove (a 12) spherical hollow polyethylene liner of liner (11), spherical hollow polyethylene liner (11) is socketed on radius bulb (13) outside, polyethylene liner (11) is outside cylindrical, with metal acetabular cup (6) socket, polyethylene liner can prevent that metal assembly from directly contacting, and reduces the component wear after implanting.
10. tantalum coating artificial elbow joint prosthese according to claim 1 is characterized in that: described artificial elbow joint prosthese is that medical stainless steel 00Cr18Ni14Mo3 or 00Cr18Ni15Mo3N or titanium Ti or titanium alloy T i-6Al-4V or vitallium Co30Cr6Mo0.35C material are as matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020663858 CN201879868U (en) | 2010-12-16 | 2010-12-16 | Tantalum-coated elbow prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020663858 CN201879868U (en) | 2010-12-16 | 2010-12-16 | Tantalum-coated elbow prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201879868U true CN201879868U (en) | 2011-06-29 |
Family
ID=44177388
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020663858 Expired - Fee Related CN201879868U (en) | 2010-12-16 | 2010-12-16 | Tantalum-coated elbow prosthesis |
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| CN (1) | CN201879868U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799925A (en) * | 2015-04-28 | 2015-07-29 | 山东航维骨科医疗器械股份有限公司 | Metal implant with high-density surface for orthopedics department |
| CN106974747A (en) * | 2012-06-22 | 2017-07-25 | 捷迈有限公司 | Elbow prosthese |
| CN107072789A (en) * | 2014-10-21 | 2017-08-18 | 泰克里斯公司 | Ancon distance piece |
| CN109662813A (en) * | 2019-03-01 | 2019-04-23 | 安徽工程大学 | A kind of welded type ceramics artificial elbow joint |
| CN109793597A (en) * | 2019-03-01 | 2019-05-24 | 安徽工程大学 | A kind of stent-type ceramics artificial elbow joint |
-
2010
- 2010-12-16 CN CN 201020663858 patent/CN201879868U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974747A (en) * | 2012-06-22 | 2017-07-25 | 捷迈有限公司 | Elbow prosthese |
| US10195040B2 (en) | 2012-06-22 | 2019-02-05 | Zimmer, Inc. | Elbow prosthesis |
| CN106974747B (en) * | 2012-06-22 | 2019-06-04 | 捷迈有限公司 | Elbow prosthese |
| CN107072789A (en) * | 2014-10-21 | 2017-08-18 | 泰克里斯公司 | Ancon distance piece |
| CN104799925A (en) * | 2015-04-28 | 2015-07-29 | 山东航维骨科医疗器械股份有限公司 | Metal implant with high-density surface for orthopedics department |
| CN109662813A (en) * | 2019-03-01 | 2019-04-23 | 安徽工程大学 | A kind of welded type ceramics artificial elbow joint |
| CN109793597A (en) * | 2019-03-01 | 2019-05-24 | 安徽工程大学 | A kind of stent-type ceramics artificial elbow joint |
| CN109662813B (en) * | 2019-03-01 | 2024-05-17 | 安徽工程大学 | Welding type ceramic artificial elbow joint |
| CN109793597B (en) * | 2019-03-01 | 2024-05-17 | 安徽工程大学 | Bracket type ceramic artificial elbow joint |
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Granted publication date: 20110629 Termination date: 20131216 |