CN108524063B - 3D prints individualized talus surface replacement prosthesis - Google Patents
3D prints individualized talus surface replacement prosthesis Download PDFInfo
- Publication number
- CN108524063B CN108524063B CN201810377339.1A CN201810377339A CN108524063B CN 108524063 B CN108524063 B CN 108524063B CN 201810377339 A CN201810377339 A CN 201810377339A CN 108524063 B CN108524063 B CN 108524063B
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- prosthesis
- talus
- contact surface
- talar
- rough contact
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- 210000004233 talus Anatomy 0.000 title claims abstract description 50
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 12
- 238000010146 3D printing Methods 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 210000002303 tibia Anatomy 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 210000000544 articulatio talocruralis Anatomy 0.000 abstract description 11
- 210000003041 ligament Anatomy 0.000 abstract description 10
- 238000004393 prognosis Methods 0.000 abstract description 3
- 230000009023 proprioceptive sensation Effects 0.000 abstract description 2
- 210000002683 foot Anatomy 0.000 abstract 1
- 210000003423 ankle Anatomy 0.000 description 11
- 230000006378 damage Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000017074 necrotic cell death Effects 0.000 description 4
- 206010024453 Ligament sprain Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 206010003246 arthritis Diseases 0.000 description 3
- 210000000845 cartilage Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010007710 Cartilage injury Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 210000000549 articulatio subtalaris Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 208000027502 Ankle fracture Diseases 0.000 description 1
- 208000025978 Athletic injury Diseases 0.000 description 1
- 208000017234 Bone cyst Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 206010041738 Sports injury Diseases 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000548 hind-foot Anatomy 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 208000018937 joint inflammation Diseases 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009897 systematic 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
-
- 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
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30321—The prosthesis having different structural features at different locations within the same prosthesis differing in roughness
-
- 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]
-
- 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
- A61F2002/4207—Talar components
Abstract
The invention discloses a 3D printing personalized talus surface replacement prosthesis, which comprises a prosthesis manufactured by a 3D printing technology, wherein the prosthesis comprises a smooth connecting surface for adapting to the lower joint surface of a tibia and a rough contact surface for adapting to the resected part of the talus, the prosthesis further comprises a body positioned between the smooth connecting surface and the rough contact surface, the rough contact surface is provided with a plurality of micropores for fixedly connecting the talus with the prosthesis by extending newly grown bones of the talus, and the prosthesis is provided with a connecting piece for connecting the talus with the talus. The 3D printing personalized talar surface replacement prosthesis provided by the invention has the advantages that the talar surface replacement maintains all ligaments around the talar, not only can the stability of ankle joints and hind feet be maintained, but also the normal proprioception of patients is maintained, and the clinical prognosis is predictable and good.
Description
Technical Field
The invention relates to the field of ankle joint treatment, in particular to a 3D printing personalized talus surface replacement prosthesis.
Background
The ankle joint is the most easily damaged load-bearing joint of the human body, and only the ankle joint sprain accounts for 20% of sports injury, so the ankle joint is a common cause of emergency department visit in China. Unlike the knee joint, post-traumatic arthritis is the most predominant factor responsible for end-stage ankle arthritis. Because the talus itself has poor blood supply and is prone to necrosis and joint surface collapse, ankle joint surface injuries are often more common than tibial joint surface injuries, and ankle sprains up to 50% can cause cartilage damage to the talus.
The cartilage defect of the talus changes the biomechanical state of ankle joint load, and finally causes severe ankle joint inflammation, so that patients have difficulty in walking and low life quality.
For the end-stage ankle lesions, the currently mainly used treatment method is ankle fusion or total ankle replacement.
However, before evolving into end-stage ankle arthritis, we see that there is far more damage on the talus side of the ankle than on the tibia side. The formation of talar ischemic necrosis, subtalar joint sublevel bone cysts is quite common in talar cartilage defects, which are often found in the accompanying injuries of ankle sprains or ankle fractures, and in complications following talar fractures or dislocation, which are often irreversible. If early treatment is performed, the fate of ankle fusion or total ankle replacement can be avoided or delayed. There is a relatively systematic treatment for small areas of cartilage damage in the talus, but there is currently no effective treatment for large areas of cartilage defects in the talus, and for talus necrosis.
For patients with such relatively intact distal tibial articular surfaces, with only talar dome surface damage, overstocked ankle fusion or total ankle replacement procedures, which damage the original distal tibial articular surface, prematurely reduce the quality of life of the patient, are both suspected. Thus, talar replacement begins to occur. In talar replacement, a talar prosthesis, which is a stainless steel or alumina ceramic material, replaces the talar body while preserving the talar neck, leaving most of the ligaments. However, the prosthesis has a handle which extends into the talus neck to play a role in fixation, and the stress on the handle of the prosthesis is relatively concentrated, so that the prosthesis is easy to loosen, move forward, sink and lose efficacy, and the necrosis rate of the talus head is high.
In talar replacement, another approach is total-distance bone prosthesis replacement, however, total-distance bone replacement cannot repair the anterior talofibular ligament, the tibiofemoral part of the cruciate ligament, the calcaneal ligament, the cervical ligament, etc. the important ligaments that maintain the stability of the ankle joint and the subtalar joint, long-term prognosis is of concern.
From the foregoing, it can be seen that none of the above-described approaches achieves the desired result for such patients with relatively intact distal tibial articular surfaces and only talar dome articular surface failure. Therefore, there is a need to design a 3D printed personalized talar surface replacement prosthesis that avoids damaging the intact distal tibial articular surface, while retaining the ligaments as much as possible.
Disclosure of Invention
The invention aims to provide a 3D printing personalized talus surface replacement prosthesis, which avoids damaging intact distal tibial articular surfaces and talus peripheral ligaments, maintains the movement capability of ankle joints of patients after operation as much as possible, and improves the life quality of the patients after operation.
To achieve the above object, the present invention provides a 3D printed personalized talar surface replacement prosthesis comprising a prosthesis made by 3D printing technology, the prosthesis comprising a smooth connection surface for adapting to the lower articular surface of the tibia and a rough contact surface for adapting to the resected portion of the talus, the prosthesis further comprising a body between the smooth connection surface and the rough contact surface, the rough contact surface being provided with a plurality of micro-holes for fixedly connecting the talus to the prosthesis by extending newly grown bone of the talus, the prosthesis being provided with a connecting piece for connecting it to the talus.
As a further improvement of the invention, the plurality of micropores are formed by a multi-layer net-shaped structure extending from the surface of the rough contact surface into the body, the pore diameter of the micropores is 500-700 microns, and the micropores are formed by adopting an electron beam melting or laser beam melting technology and are mutually communicated.
As a still further improvement of the present invention, the number of the micropores decreases to zero in order from the direction of the rough contact surface toward the body.
As a further development of the invention, the prosthesis is provided with a countersink extending from the smooth connecting surface to the rough contact surface, which countersink is adapted to the connecting piece.
As a still further improvement of the present invention, the connecting member is a screw passing through the counterbore.
As a further development of the invention, the rough contact surface is provided with grooves which cooperate with resected portions of the talus.
As a further improvement of the invention, the connecting piece comprises matched bolts and nuts, the counter bores are paired in pairs, two counter bores in each pair are opposite and coaxially arranged, the groove is positioned between the two counter bores in each pair, the bolt heads and the nuts of the bolts are respectively positioned in the two counter bores in pairs, and the screw rods of the bolts penetrate through the counter bores in pairs.
Advantageous effects
Compared with the prior art, the 3D printing personalized talus surface replacement prosthesis has the advantages that:
1. talar surface replacement retains all ligaments surrounding the talus, not only maintains stability of the ankle and hindfoot, but also retains normal proprioception of the patient, the clinical prognosis of which is predictable and good;
2. the resected part of the talus is contacted with the rough contact surface of the prosthesis and the talus and the prosthesis are mutually fixed through the connecting piece, and in the healing stage, the newly grown bone of the resected part of the talus can extend into a plurality of micropores on the smooth connecting surface, so that the talus and the prosthesis are fused and fixed, and the connection stability of the prosthesis and the talus is improved;
3. the number of micropores is sequentially reduced to zero from the direction of the rough contact surface to the body, so that bones can be as long and deeper as possible, the holding force between the prosthesis and a bone interface is larger, the connection is firmer, and meanwhile, the number of micropores is gradually reduced to maintain the overall rigidity of the prosthesis, the probability of brittle failure of the prosthesis is reduced, and the service life of the prosthesis is prolonged;
4. the micropores are formed by a multi-layer network structure with the rough contact surface and gradually increased inner density, the multi-layer network structure can be realized by 3D printing technologies such as electron beam melting or laser beam melting, the whole prosthesis can also be manufactured by the 3D printing technology, and the protecting navigation is designed for the personalized and accurate prosthesis.
The invention will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a human ankle joint structure;
FIG. 2 is a front view of the 3D printed personalized talar surface replacement prosthesis of example 1 in use;
FIG. 3 is a schematic view in the direction A-A of FIG. 2;
FIG. 4 is a left side cross-sectional view of the prosthesis of example 1;
FIG. 5 is a schematic view of a multi-layer mesh structure on a rough contact surface;
FIG. 6 is a left side cross-sectional view of the 3D printed personalized talar surface replacement prosthesis in example 2 in use;
FIG. 7 is a left side cross-sectional view of the prosthesis of example 2;
fig. 8 is a left side cross-sectional view of the 3D printed personalized talar surface replacement prosthesis in example 3 in use.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings.
Example 1
Detailed description of the invention as shown in figures 1 to 5, a 3D printed personalized talar surface replacement prosthesis comprises a prosthesis 1 made by 3D printing techniques, the prosthesis 1 comprising a smooth connection surface 11 for adapting to the lower articular surface of the tibia 6 and a rough contact surface 12 for adapting to the resected portion of the talus 3, the prosthesis 1 further comprising a body 13 between the smooth connection surface 11 and the rough contact surface 12, the rough contact surface 12 being provided with a plurality of micro-holes for fixedly connecting the talus 3 to said prosthesis 1 by letting newly growing bone of the talus 3 in, the prosthesis 1 being provided with a connection for connecting it to the talus 3. The resected portion of the talus 3 contacts the rough contact surface 12 of the prosthesis 1 and secures the talus 3 to the prosthesis 1 via the connecting member, and during the healing phase, the newly grown bone of the resected portion of the talus 3 can extend into the plurality of micro-holes of the smooth connecting surface 11, thereby fusing and securing the talus 3 to the prosthesis 1 and increasing the connection stability of the prosthesis 1 to the talus 3.
The multi-layer net structure extending from the surface of the rough contact surface 12 into the body 13 forms a plurality of micropores, the pore diameter of the micropores is 500-700 microns, and the micropores are formed by adopting an electron beam melting or laser beam melting technology and are mutually communicated. The micropores are distributed in a gradient manner, the number of micropores on the rough contact surface 12 side is the largest, and the number of micropores in the body 13 is reduced layer by layer until zero. The number of micropores is reduced to zero from the direction of the rough contact surface to the body in sequence, so that the bone can be as long and deeper as possible, the holding force between the prosthesis and the bone interface is larger, the connection is firmer, and meanwhile, the number of micropores is gradually reduced to maintain the overall rigidity of the prosthesis, the probability of brittle failure of the prosthesis is reduced, and the service life of the prosthesis is prolonged.
The prosthesis 1 is provided with a countersunk hole 14 penetrating from the smooth connecting surface 11 to the rough contact surface 12, and the countersunk hole 14 is matched with the connecting piece.
The connection is a screw 2 passing through the counter bore 14.
The rough contact surface 12 is provided with grooves 15 which cooperate with the resected portion of the talus.
The countersunk holes 14 are uniformly distributed on two sides of the groove 15, the tail ends of the countersunk holes 14 are positioned on the inner part of the groove 15, and the screws 2 extend into the countersunk holes 14 and are inserted into the parts of the talus 3 positioned in the groove 15.
Example 2
As shown in fig. 6 and 7, the difference from embodiment 1 is that the rough contact surface 12 is a plane, and the portion of the talus 3 that fits with the rough contact surface 12 is also a plane, and the two are in contact with each other. The screw 2 is inserted through the counter bore 14 and obliquely into the plane of the talus 3 in contact with the rough contact surface 12.
Example 3
As shown in fig. 8, the difference from embodiment 1 is that the connector includes the matched bolts 4 and nuts 5, the counter bores 14 are paired two by two, two counter bores 14 of each pair are arranged opposite and coaxially, the groove 15 is located between two counter bores 14 of each pair, the bolt head of the bolts 4 and the nuts 5 are respectively located in two counter bores 14 of each pair, and the screw of the bolts 4 passes through the counter bores 14 of each pair.
The invention has been described in connection with the preferred embodiments, but the invention is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the invention.
Claims (6)
1. A 3D printed personalized talar surface replacement prosthesis, characterized in that it comprises a prosthesis (1) made by 3D printing technology, the prosthesis (1) comprising a smooth connection surface (11) for adapting to the lower articular surface of the tibia and a rough contact surface (12) for adapting to the resected portion of the talus, the prosthesis (1) further comprising a body (13) located between the smooth connection surface (11) and the rough contact surface (12), the rough contact surface (12) being provided with a plurality of micro-holes for fixedly connecting the talus to the prosthesis (1) by letting the newly growing bone of the talus extend in, the prosthesis (1) being provided with a connection for connecting it to the talus; the number of micropores decreases to zero in sequence from the rough contact surface (12) to the body (13).
2. A 3D printed personalized talar surface replacement prosthesis according to claim 1, wherein said plurality of micro-holes are formed by a multi-layer mesh structure extending from the surface of said rough contact surface (12) into the body (13), the micro-holes having a pore size of 500-700 microns, and adjacent micro-holes being interconnected.
3. A 3D printed personalized talar surface replacement prosthesis according to claim 1, characterized in that the prosthesis (1) is provided with a countersunk hole (14) extending from the smooth connection surface (11) to the rough contact surface (12), which countersunk hole (14) is adapted to the connection piece.
4. A 3D printed personalized talar surface replacement prosthesis according to claim 3, characterized in that said connection is a screw (2) passing through said counterbore (14).
5. A 3D printed personalized talar surface replacement prosthesis according to claim 3, characterized in that said rough contact surface (12) is provided with grooves (15) for cooperation with resected portions of the talus.
6. A 3D printed personalized talar surface replacement prosthesis according to claim 5, characterized in that the connection comprises an adapted bolt (4) and nut (5), the counter bores (14) are in pairs, two counter bores (14) of each pair are opposite and coaxially arranged, the groove (15) is located between two counter bores (14) of each pair, the bolt head and nut (5) of the bolt (4) are located in two counter bores (14) of each pair, the screw of the bolt (4) passes through the counter bores (14) of each pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377339.1A CN108524063B (en) | 2018-04-25 | 2018-04-25 | 3D prints individualized talus surface replacement prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377339.1A CN108524063B (en) | 2018-04-25 | 2018-04-25 | 3D prints individualized talus surface replacement prosthesis |
Publications (2)
| Publication Number | Publication Date |
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| CN108524063A CN108524063A (en) | 2018-09-14 |
| CN108524063B true CN108524063B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810377339.1A Active CN108524063B (en) | 2018-04-25 | 2018-04-25 | 3D prints individualized talus surface replacement prosthesis |
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| Country | Link |
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| CN (1) | CN108524063B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109330747A (en) * | 2018-11-20 | 2019-02-15 | 中国人民解放军陆军军医大学第附属医院 | A kind of personalization astragalus surface replacement prosthesis |
| CN109330748A (en) * | 2018-11-20 | 2019-02-15 | 中国人民解放军陆军军医大学第附属医院 | A kind of ankle prosthesis shin bone sidepiece part |
| CN109620483B (en) * | 2019-01-18 | 2023-07-25 | 青岛大学附属医院 | Single ankle joint surface replacement system |
| CN109846580A (en) * | 2019-02-14 | 2019-06-07 | 中国人民解放军陆军军医大学第一附属医院 | Personalized range bone prosthese with biological function and preparation method thereof |
| US10940012B2 (en) * | 2019-03-11 | 2021-03-09 | Wright Medical Technology, Inc. | Talar dome with angled holes |
| CN111529142A (en) * | 2020-04-17 | 2020-08-14 | 蒋青 | Talus prosthesis model for 3D printing and forming method of talus prosthesis by 3D printing |
| CN113827378B (en) * | 2021-11-24 | 2022-05-03 | 北京爱康宜诚医疗器材有限公司 | Ankle joint tibia side prosthesis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784014A (en) * | 2012-08-14 | 2012-11-21 | 中国科学院深圳先进技术研究院 | Porotic bone scaffold and preparation method thereof |
| CN106618807A (en) * | 2016-11-17 | 2017-05-10 | 中国人民解放军第三军医大学第附属医院 | Detachable talus prosthesis |
| WO2018011604A2 (en) * | 2016-07-15 | 2018-01-18 | Cudeti (Uk) Limited | Implant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1809209A2 (en) * | 2004-08-19 | 2007-07-25 | Kinetikos Medical Incorporated | Modular total ankle prosthesis apparatuses, systems and methods, and systems and methods for bone resection and prosthetic implantation |
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2018
- 2018-04-25 CN CN201810377339.1A patent/CN108524063B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784014A (en) * | 2012-08-14 | 2012-11-21 | 中国科学院深圳先进技术研究院 | Porotic bone scaffold and preparation method thereof |
| WO2018011604A2 (en) * | 2016-07-15 | 2018-01-18 | Cudeti (Uk) Limited | Implant |
| CN106618807A (en) * | 2016-11-17 | 2017-05-10 | 中国人民解放军第三军医大学第附属医院 | Detachable talus prosthesis |
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| CN108524063A (en) | 2018-09-14 |
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