CN112603606A - Knee joint cartilage prosthesis for local replacement - Google Patents

Knee joint cartilage prosthesis for local replacement Download PDF

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Publication number
CN112603606A
CN112603606A CN202011577242.9A CN202011577242A CN112603606A CN 112603606 A CN112603606 A CN 112603606A CN 202011577242 A CN202011577242 A CN 202011577242A CN 112603606 A CN112603606 A CN 112603606A
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CN
China
Prior art keywords
pyramid
barb structure
base
bone trabecula
prosthesis
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
Application number
CN202011577242.9A
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Chinese (zh)
Inventor
童培建
储小兵
史春宝
许奎雪
荀世界
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Chunlizhengda Medical Instruments Co Ltd
Original Assignee
Beijing Chunlizhengda Medical Instruments Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Chunlizhengda Medical Instruments Co Ltd filed Critical Beijing Chunlizhengda Medical Instruments Co Ltd
Priority to CN202011577242.9A priority Critical patent/CN112603606A/en
Publication of CN112603606A publication Critical patent/CN112603606A/en
Priority to PCT/CN2021/141523 priority patent/WO2022143499A1/en
Pending legal-status Critical Current

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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
    • A61F2/3877—Patellae or trochleae
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • 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
    • A61F2/3886—Joints for elbows or knees for stabilising knees against anterior or lateral dislocations
    • 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
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Prostheses (AREA)

Abstract

The invention provides a knee joint cartilage prosthesis for local replacement, which comprises a base and a joint surface; the base comprises a pyramid and a bottom plate bone trabecula, the pyramid is fixedly arranged in the middle of the bone trabecula, and a pyramid barb structure is arranged at the bottom of the pyramid. The base has the barb structure, can organize with the barb structure of articular surface part, and barb structure edge has the oblique angle, is convenient for organize like this, makes two parts barb structure catch on each other, produces and has very strong resistance to plucking, can prevent effectively that articular surface and metal part from dislocating.

Description

Knee joint cartilage prosthesis for local replacement
Technical Field
The invention relates to a medical appliance, in particular to a knee joint cartilage prosthesis for local replacement.
Background
Defects and injuries of articular cartilage in joints are common diseases in clinic, and a representative disease of articular cartilage injuries is osteoarthritis, and symptoms of osteoarthritis include: the most prominent symptoms are pain, mild dull pain in the initial stage, gradual worsening later, more active, and better after rest. Some patients feel pain in the morning and are relieved after slight activities, but the pain becomes worse after excessive activities, and persistent pain or night pain, also called resting pain, appears in the later period. Pain may be related to factors such as weather changes, cold, dampness; the joint is often felt to be inflexible and difficult to go upstairs and downstairs, the joint is fixed at a certain angle for a long time in the morning, the joint is stiff, and the joint is lightened after being slightly moved; when the joint moves, different sounds are generated, mainly caused by the damage of joint cartilage and the unevenness of joint surface; if the articular cartilage is stripped or falls into the joint cavity to form an episome, also called as an articular mouse, joint interlocking can occur at the moment; articular cartilage damage can lead to synovitis, the formation of fluid accumulation, and joint swelling.
The existing treatment modes comprise drilling, autologous living and allogeneic cartilage transplantation, chondrocyte transplantation and the like, but all the modes have the defects of limited repair capability, disease transmission, limited supply area, complicated steps, high cost and the like, and have many complications. At present, few internal plant materials specially used for articular cartilage defect and injury appear in clinic at home and abroad, and an internal plant capable of replacing articular cartilage surface to play a role is urgently needed for most of articular cartilage defect patients.
Therefore, there is an urgent need for a prosthesis having a low friction coefficient, which can maintain medical implants in the body for a long period of time to replace the defective cartilage.
Disclosure of Invention
The invention aims to provide a knee joint cartilage prosthesis for local replacement.
In order to solve the technical problems, the invention provides a knee joint cartilage prosthesis for local replacement, which comprises a base and a joint surface; the base comprises a pyramid and a bottom plate trabecula, the pyramid is fixedly arranged in the middle of the trabecula, a pyramid barb structure is arranged at the bottom of the pyramid, the bottom of the barb structure is of a rectangular structure, the middle of the barb structure is of an inverted trapezoidal structure, the upper part of the barb structure is of a trapezoidal structure with an edge oblique angle, and the length of the bottom side of the trapezoidal structure with the edge oblique angle at the upper part is greater than that of the top side of the inverted trapezoidal structure at the middle part; the base is provided with a base barb structure matched with the pyramid barb structure.
Furthermore, the base is made of metal, and the joint surface part is made of high polymer polyethylene material or ceramic alloy.
Furthermore, the pyramid surface is provided with a pyramid bone trabecula structure.
Furthermore, the grid porosity of the bottom plate bone trabecula and the pyramid bone trabecula structure is set to be 50% -80%, and the pore diameter is set to be 100-400 mu m.
Further, the articular surface portion is arc-shaped.
Furthermore, the pyramid is a triangular pyramid, and the height of the triangular pyramid structure is 8-15 mm.
Furthermore, the bevel angles of the upper edges of the pyramid barb structure and the articular surface barb structure are 40-45 degrees.
During the use, pass through barb structure combination with base and articular surface: specifically, the pyramid structure enters the bone through knocking, the pyramid structure can better resist rotation, and the stability of the cartilage prosthesis is improved.
Compared with the prior art, the invention has the following advantages:
(1) the surface of the pyramid structure is provided with a layer of bone trabecula structure, so that the growth of bone substances can be promoted, and the stability in the later period can be improved.
(2) Meanwhile, the thickness of the bottom plate bone trabecula structure is selected according to the thickness of the bone removal, so that the contact area between the prosthesis and the bone is increased, the stability of the prosthesis at the later stage is further increased, the bottom plate bone trabecula and the pyramid are integrated, and the three-dimensional (3D) printing process is adopted for realizing the structure.
(3) The base has the barb structure, can organize with the barb structure of articular surface part, and barb structure edge has the oblique angle, is convenient for organize like this, makes two parts barb structure catch on each other, produces and has very strong resistance to plucking, can prevent effectively that articular surface and metal part from dislocating.
(4) The articular surface part is designed according to the physiological radian of the thighbone and the shinbone of a patient, and the articular surface part is designed by extracting the bone surface through CT data of the patient by using a software mimics reverse principle, so that the articular surface part accurately conforms to the physiological radian of the cartilage of the patient and does not conflict with the radian of the articular surface around a normal knee joint, the repaired cartilage articular surface of the patient achieves a smooth effect, and the pain of the patient is reduced;
(5) the local replacement knee joint cartilage prosthesis adopts a 3D printing technology, so that the cartilage prosthesis can be customized according to the defect size of each patient, the requirement of each patient is met, and the application range is enlarged.
Drawings
FIG. 1 is a front view of the overall structure of the partial replacement knee cartilage prosthesis according to the present invention;
FIG. 2 is a top view of the overall structure of the partial replacement knee cartilage prosthesis according to the present invention;
FIG. 3 is a front view of the base of the partial replacement knee cartilage prosthesis of the present invention;
FIG. 4 is a front view of the articular surface of the partial replacement knee cartilage prosthesis of the present invention;
1-base, 2-articular surface, 11-pyramid barb structure; 12-pyramid, 13-trabecular bone; 21-articular surface barb structure.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, a partial replacement knee cartilage prosthesis of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Comprises a base and an articular surface; the base comprises a pyramid 12 and a bottom plate bone trabecula 13, the pyramid 12 is fixedly arranged in the middle of the bottom plate bone trabecula 13, a pyramid barb structure 11 is arranged at the bottom of the pyramid 12, the bottom of the pyramid barb structure penetrates through the bottom plate bone trabecula, the bottom of the pyramid barb structure 11 is of a rectangular structure, the middle of the pyramid barb structure is of an inverted trapezoidal structure, the upper part of the pyramid barb structure is of a trapezoidal structure with an edge oblique angle, and the length of the bottom side of the trapezoidal structure with the edge oblique angle at the upper part is greater than that of the top side of the inverted; the articular surface is provided with an articular surface barb structure 21 matched with the pyramid barb structure. Wherein the grid porosity of the bottom plate bone trabecula is set to be 50% -80%, and the pore diameter is set to be 100-400 μm. The pyramid is a triangular pyramid, and the height of the triangular pyramid structure is 8-15 mm. The bevel angles of the upper edges of the pyramid barb structure and the articular surface barb structure are 40-45 degrees. Through pyramid structure barb structure, can carry out the matched stack with articular surface barb structure, barb structure edge has the oblique angle, is convenient for like this assemble stack, makes two parts barb structure catch on each other, produces to have very strong resistance to plucking power, can prevent effectively that articular surface and metal part from dislocating.
The metal base is made of metal with mechanical strength, and the joint surface is made of high-molecular polyethylene or ceramic alloy with low friction coefficient.
In order to facilitate bone ingrowth, a layer of pyramid trabecular bone structure is arranged on the surface of the pyramid structure to increase the stability in the later period, wherein the grid porosity of the pyramid trabecular bone structure is set to be 50% -80%, and the pore diameter is set to be 100-400 microns.
The method comprises the steps of extracting the surface of a bone to design an articular surface part by utilizing the software mimics reverse principle through CT data of a patient, and setting the articular surface part into an arc shape. The radian of the cartilage of the patient can be accurately met, and the conflict with the radian of the joint surface around the normal knee joint can be avoided, so that the repaired cartilage joint surface can achieve the smooth effect, and the pain of the patient can be reduced.
Wherein, the thickness that bottom plate bone trabecula structure removed according to the sclerotin in the bottom plate bone trabecula structure class, the thickness of selecting bottom plate bone trabecula structure to increase false body and sclerotin area of contact, further increase the stability of false body later stage, and bottom plate bone trabecula and pyramid are a whole. The local replacement knee joint cartilage prosthesis adopts a 3D printing technology, so that the cartilage prosthesis can be customized according to the defect size of each patient, the requirement of each patient is met, and the application range is enlarged.
During the use, pass through barb structure combination with base and articular surface: specifically, the pyramid structure enters the bone through knocking, the pyramid structure can better resist rotation, and the stability of the cartilage prosthesis is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (8)

1. A knee joint cartilage prosthesis for local replacement is characterized by comprising a base and a joint surface; the base comprises a pyramid and a bottom plate bone trabecula, the pyramid is fixedly arranged in the middle of the bone trabecula, a pyramid barb structure is arranged at the bottom of the pyramid, and a base barb structure matched with the pyramid barb structure is arranged on the base.
2. The partial replacement knee cartilage prosthesis of claim 1, wherein: pyramid barb structure runs through bottom plate bone trabecula, pyramid barb structure bottom is rectangular structure, the middle part is down trapezium structure, upper portion is the trapezium structure of taking the marginal oblique angle, and the length of the trapezium structure base that the marginal oblique angle was taken on upper portion is greater than the top side length that the middle part is down trapezium structure.
3. The partial replacement knee cartilage prosthesis of claim 1, wherein: the base is made of metal, and the joint surface part is made of high-molecular polyethylene material or ceramic alloy.
4. The partial replacement knee cartilage prosthesis of claim 1, wherein: the pyramid surface is provided with a pyramid bone trabecula structure.
5. The partial replacement knee cartilage prosthesis of claim 1, wherein: the bottom plate bone trabecula and the pyramid bone trabecula are both of grid porosity of 50% -80%, and the pore diameter is set to be 100-400 mu m.
6. The partial replacement knee cartilage prosthesis of claim 1, wherein: the articular surface is arc-shaped.
7. The partial replacement knee cartilage prosthesis of claim 1, wherein: the pyramid is a triangular pyramid, and the height of the triangular pyramid structure is 8-15 mm.
8. The partial replacement knee cartilage prosthesis of claim 1, wherein: the bevel angles of the upper edges of the pyramid barb structure and the articular surface barb structure are 40-45 degrees.
CN202011577242.9A 2020-12-28 2020-12-28 Knee joint cartilage prosthesis for local replacement Pending CN112603606A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202011577242.9A CN112603606A (en) 2020-12-28 2020-12-28 Knee joint cartilage prosthesis for local replacement
PCT/CN2021/141523 WO2022143499A1 (en) 2020-12-28 2021-12-27 Local replacement knee joint cartilage prosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011577242.9A CN112603606A (en) 2020-12-28 2020-12-28 Knee joint cartilage prosthesis for local replacement

Publications (1)

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CN112603606A true CN112603606A (en) 2021-04-06

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CN (1) CN112603606A (en)
WO (1) WO2022143499A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022143499A1 (en) * 2020-12-28 2022-07-07 北京市春立正达医疗器械股份有限公司 Local replacement knee joint cartilage prosthesis

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FR2642301A1 (en) * 1989-01-31 1990-08-03 Laboureau Jacques Philippe Composite prosthesis, intended in particular for replacement of the patella, the tibial plates, the cotyles or any other articulation, and providing a shock-absorbing effect
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US20070093896A1 (en) * 2005-10-26 2007-04-26 Malinin Theodore I Method and instrumentation for the preparation and transplantation of osteochondral allografts
US20080243258A1 (en) * 2005-08-24 2008-10-02 Kantilal Hastimal Sancheti Knee Joint Prosthesis
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CN102014800A (en) * 2008-02-28 2011-04-13 比奥波利公司 Partial joint resurfacing implant, instrumentation, and method
US20110178607A1 (en) * 2008-07-24 2011-07-21 Christiaan Rudolf Oosthuizen Orthopedic Prosthesis
CN204971711U (en) * 2015-05-31 2016-01-20 西安赛隆金属材料有限责任公司 High strength aperture footpath metal bone trabecula
CN106535828A (en) * 2014-04-28 2017-03-22 拜欧米特制造有限责任公司 Convertible pre-partial knee replacement
DE102016222602A1 (en) * 2016-11-16 2018-05-17 Aesculap Ag Implant and kits for treating a bone defect
CN208910604U (en) * 2018-03-03 2019-05-31 北京市富乐科技开发有限公司 3D printing anterior stabilization device
CN209770594U (en) * 2018-12-31 2019-12-13 王文军 Self-stabilizing type multi-hole interbody fusion cage

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WO2012078653A1 (en) * 2010-12-07 2012-06-14 Zimmer, Inc. Prosthetic patella
CN104434342A (en) * 2014-12-09 2015-03-25 张海宁 Medical planted osteochondral prosthesis system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642301A1 (en) * 1989-01-31 1990-08-03 Laboureau Jacques Philippe Composite prosthesis, intended in particular for replacement of the patella, the tibial plates, the cotyles or any other articulation, and providing a shock-absorbing effect
CN2307548Y (en) * 1997-09-17 1999-02-17 吉林市中心医院 Carbonaceous capitulum radii prosthesis
US20080243258A1 (en) * 2005-08-24 2008-10-02 Kantilal Hastimal Sancheti Knee Joint Prosthesis
US20090143867A1 (en) * 2005-08-26 2009-06-04 Isto Technologies, Inc. Implants and Methods for Repair, Replacement and Treatment of Disease
US20070093896A1 (en) * 2005-10-26 2007-04-26 Malinin Theodore I Method and instrumentation for the preparation and transplantation of osteochondral allografts
CN102014800A (en) * 2008-02-28 2011-04-13 比奥波利公司 Partial joint resurfacing implant, instrumentation, and method
US20110178607A1 (en) * 2008-07-24 2011-07-21 Christiaan Rudolf Oosthuizen Orthopedic Prosthesis
CN106535828A (en) * 2014-04-28 2017-03-22 拜欧米特制造有限责任公司 Convertible pre-partial knee replacement
CN204971711U (en) * 2015-05-31 2016-01-20 西安赛隆金属材料有限责任公司 High strength aperture footpath metal bone trabecula
DE102016222602A1 (en) * 2016-11-16 2018-05-17 Aesculap Ag Implant and kits for treating a bone defect
CN208910604U (en) * 2018-03-03 2019-05-31 北京市富乐科技开发有限公司 3D printing anterior stabilization device
CN209770594U (en) * 2018-12-31 2019-12-13 王文军 Self-stabilizing type multi-hole interbody fusion cage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022143499A1 (en) * 2020-12-28 2022-07-07 北京市春立正达医疗器械股份有限公司 Local replacement knee joint cartilage prosthesis

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Application publication date: 20210406