CN113425467A - Semi-enclosed customized finger joint prosthesis - Google Patents
Semi-enclosed customized finger joint prosthesis Download PDFInfo
- Publication number
- CN113425467A CN113425467A CN202110704265.XA CN202110704265A CN113425467A CN 113425467 A CN113425467 A CN 113425467A CN 202110704265 A CN202110704265 A CN 202110704265A CN 113425467 A CN113425467 A CN 113425467A
- Authority
- CN
- China
- Prior art keywords
- prosthesis
- phalanx
- distal
- proximal
- ball head
- 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
-
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
-
- 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
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
-
- 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
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
- A61F2002/4251—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for metacarpo-phalangeal joints, i.e. MCP or MP joints, e.g. knuckle joints
- A61F2002/4253—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for metacarpo-phalangeal joints, i.e. MCP or MP joints, e.g. knuckle joints for thumbs
Abstract
The invention relates to the technical field of medical prostheses, and provides a semi-enclosed customized finger joint prosthesis. The method comprises the following steps: the phalanx proximal prosthesis, the ball head and the phalanx distal prosthesis are sequentially connected; wherein the phalanx proximal prosthesis is provided with a phalanx distal prosthesis handle; the proximal phalanx prosthesis is formed by 3D printing according to the phalanx size design of a patient, and the structural sizes of the ball head and the distal phalanx prosthesis are determined according to the printing structural size of the proximal phalanx prosthesis; screwing a ball head into the proximal phalanx prosthesis, and inserting the proximal phalanx prosthesis handle into a bone cavity at the proximal phalanx; inserting the distal phalange prosthesis handle into a bone cavity at the distal phalange, and finishing the fixation of the distal phalange prosthesis handle in the bone cavity by matching with bone cement; and finally, inserting the ball head into the phalanx distal prosthesis. The invention has the beneficial effects that: the ball head is plugged into the ball socket of the distal phalanx prosthesis, and the ball head extends into the ball socket of the distal phalanx prosthesis to form semi-surrounding fit, so that joint dislocation can be effectively prevented in use.
Description
Technical Field
The invention relates to the technical field of medical prostheses, in particular to a semi-enclosed customized finger joint prosthesis.
Background
Chinese patent CN 105496612B discloses a finger joint prosthesis, comprising: the knuckle comprises a ball socket head and a knuckle handle part which are connected, and two sides of one end of the knuckle handle part, which is close to the ball socket head, are provided with raised first longitudinal ribs; the metacarpophalangeal joint comprises a ball head and a metacarpophalangeal joint handle part which are connected, wherein two sides of one end, close to the ball head, of the metacarpophalangeal joint handle part are provided with second longitudinal ribs which are raised, and the second longitudinal ribs and the first longitudinal ribs can be embedded into a patient body to prevent the metacarpophalangeal joint and the finger joint from rotating in the patient body. The finger joint prosthesis provided by the invention enhances the surface roughness, is beneficial to bone growth so as to prolong the service life of the prosthesis, is stable to implant and convenient to operate, has the handle shape beneficial to blood supply of finger joints, and is provided with the longitudinal ribs which are beneficial to rotation resistance so as to facilitate implantation.
However, the finger joint prosthesis in the prior patent has the following defects: (1) the ball socket head and the finger joint handle part which are mutually matched are easy to cause joint dislocation in use; (2) the later repair of the finger joint prosthesis is difficult; (3) the stem of the finger joint prosthesis is too smooth to facilitate the fixation of the bone cavity.
Disclosure of Invention
The invention aims to provide a semi-enclosed customized finger joint prosthesis, which aims to solve the technical problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: a semi-enclosed customized finger joint prosthesis comprising: the phalanx proximal prosthesis, the ball head and the phalanx distal prosthesis are sequentially connected; wherein the distal phalangeal prosthesis is provided with a distal phalangeal prosthesis stem; the proximal phalanx prosthesis is formed by 3D printing according to the phalanx size design of a patient, and the structural sizes of the ball head and the distal phalanx prosthesis are determined according to the printing structural size of the proximal phalanx prosthesis; screwing a ball head into the proximal phalanx prosthesis body, and inserting a proximal phalanx prosthesis handle into a bone cavity at the proximal phalanx end; then inserting the distal end prosthesis handle of the phalanx into a bone cavity at the distal end of the phalanx, and finishing the fixation of the distal end prosthesis handle in the bone cavity by matching with bone cement; and finally, inserting the ball head into the phalanx distal prosthesis.
In an optional embodiment, a strip-shaped through hole is formed in the side wall of the ball socket of the distal phalangeal prosthesis, and a limiting gap is formed in the strip-shaped through hole.
In an alternative embodiment, the distal phalangeal prosthesis is provided with a distal phalangeal prosthesis socket, and the ball head is tucked into the distal phalangeal prosthesis socket.
In an alternative embodiment, the ball extends into the ball socket of the phalangeal distal prosthesis to form a semi-enclosed fit.
In an alternative embodiment, the outer surface of the distal phalangeal prosthesis is uniformly provided with a plurality of grooves.
In an optional embodiment, the distal phalangeal prosthesis is machined from ultra-high molecular weight polyethylene; the ball head is processed by cobalt-chromium-molybdenum alloy; the phalanx proximal prosthesis handle is formed by 3D printing of titanium alloy.
In an alternative embodiment, the surface of the phalangeal proximal prosthesis handle is in the shape of irregular hollowed-out holes.
In an alternative embodiment, the top of the proximal phalanx prosthesis is provided with a threaded proximal phalanx prosthesis hole, and the lower part of the ball head is provided with a thread, and the ball head is screwed into the threaded proximal phalanx prosthesis hole through the thread.
The invention has the beneficial effects that:
(1) the ball head in the semi-enclosed customized finger joint prosthesis is plugged into the ball socket of the distal end prosthesis of the phalanx, the ball head extends into the ball socket of the distal end prosthesis of the phalanx to form semi-enclosed fit (the ball socket covers half of the whole volume of the ball head during the fit), and the joint dislocation can be effectively prevented in use.
(2) The ball head of the semi-enclosed customized finger joint prosthesis is in threaded connection and matching with the proximal end prosthesis of the phalanx, so that early installation and later revision are facilitated. In addition, the distal phalanx prosthesis is provided with a limiting notch, which accords with the optimal moving angle of the human body.
(3) The outer surface of the distal phalanx prosthesis of the semi-enclosed customized phalanx joint prosthesis is uniformly provided with a plurality of grooves, so that bone adhesives can be fused, and the distal phalanx prosthesis can be firmer in a phalanx cavity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a semi-enclosed customized finger joint prosthesis according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a distal phalanx prosthesis in a semi-enclosed customized finger joint prosthesis according to an embodiment of the invention.
Fig. 3 is a sectional view of a distal phalangeal prosthesis in a semi-enclosed customized finger joint prosthesis according to an embodiment of the present invention.
Fig. 4 is a sectional view of a proximal phalanx prosthesis in a semi-enclosed customized finger joint prosthesis according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a ball head in a semi-enclosed customized finger joint prosthesis according to an embodiment of the present invention.
Wherein, the reference numbers in the figures are: 1. the phalanx proximal prosthesis comprises a phalanx proximal prosthesis body 11, a phalanx proximal prosthesis body handle 12, a phalanx proximal prosthesis body threaded hole 2, a ball head 3, a phalanx distal prosthesis body 31, a phalanx distal prosthesis body handle 32, a phalanx distal prosthesis body ball socket 33, a limiting notch 34 and a groove.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1-5, the present embodiment provides a semi-enclosed customized finger joint prosthesis, comprising: the phalanx proximal prosthesis 1, the ball head 2 and the phalanx distal prosthesis 3 are connected in sequence.
Further, the distal phalangeal prosthesis 3 is provided with a distal phalangeal prosthesis handle 31, the distal phalangeal prosthesis 3 is provided with a distal phalangeal prosthesis socket 32, and the ball head 2 is inserted into the distal phalangeal prosthesis socket 32. It should be noted that the ball head 2 extends into the distal phalangeal prosthetic socket 32 to form a semi-enclosed fit, and the socket 32 covers half of the overall volume of the ball head 2 during fitting, so that dislocation can be effectively prevented during use.
Specifically, a strip-shaped through hole is formed in the side wall of the distal phalangeal prosthesis ball socket 32, and a limiting notch 33 is formed in the strip-shaped through hole and conforms to the optimal movement angle of the human body. In addition, the outer surface of the distal phalangeal prosthesis 3 is uniformly provided with a plurality of grooves 34, which is beneficial for fusing bone cement, so that the distal phalangeal prosthesis 3 is firmer in the phalangeal cavity.
It is worth mentioning that the phalanx proximal prosthesis 1 is provided with a phalanx proximal prosthesis handle 11, the top of the phalanx proximal prosthesis is provided with a phalanx proximal prosthesis threaded hole 12, the lower part of the ball head 2 is provided with threads, and the ball head 2 is screwed into the phalanx proximal prosthesis threaded hole 12 through the threads, so that early installation and later repair are facilitated.
The phalanx distal prosthesis 3 is made of ultra-high molecular weight polyethylene, and has the advantages of high wear resistance, impact resistance, corrosion resistance, self-lubrication, nontoxicity, strong anti-sliding friction capacity, high impact toughness value and strong impact resistance, relative motion between joints can be better recovered, and the safety of patients can be effectively protected. The ball head 2 is processed by cobalt-chromium-molybdenum alloy; the proximal phalanx prosthesis handle 11 is formed by 3D printing of titanium alloy, and the surface of the proximal phalanx prosthesis handle 11 is in an irregular hollowed hole shape, so that the friction force in a phalanx cavity can be increased, and the growth of bone tissues is facilitated.
The working process of the semi-enclosed customized finger joint prosthesis is as follows: the proximal phalanx prosthesis 1 is formed by 3D printing according to the phalanx size design of a patient, and the structural sizes of the ball head 2 and the distal phalanx prosthesis 3 are determined according to the printing structural size of the proximal phalanx prosthesis 1; screwing the thread of the ball head 2 into the proximal phalanx prosthesis threaded hole 12 of the proximal phalanx prosthesis 1, and inserting the proximal phalanx prosthesis handle 11 into a bone cavity at the proximal phalanx; then the distal phalanx prosthesis handle 31 is inserted into the bone cavity at the distal phalanx, and the fixation of the distal phalanx prosthesis handle in the bone cavity is completed by matching with bone cement; finally, the ball head 2 is plugged into the phalangeal distal prosthesis ball socket 32 of the phalangeal distal prosthesis 3 to form a semi-surrounding type fit, so that joint dislocation can be effectively prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A semi-enclosed customized finger joint prosthesis comprising: the phalanx proximal prosthesis (1), the ball head (2) and the phalanx distal prosthesis (3) are connected in sequence; wherein the phalanx distal prosthesis (3) is provided with a phalanx distal prosthesis handle (31);
the method is characterized in that: the proximal phalanx prosthesis (1) is formed by 3D printing according to the phalanx size design of a patient, and the structural sizes of the ball head (2) and the distal phalanx prosthesis (3) are determined according to the printing structural size of the proximal phalanx prosthesis (1); screwing a ball head (2) into the proximal phalanx prosthesis (1), and inserting a proximal phalanx prosthesis handle (11) into a bone cavity at the proximal phalanx; then inserting the distal phalanx prosthesis handle (31) into a bone cavity at the distal phalanx, and finishing the fixation of the distal phalanx prosthesis handle in the bone cavity by matching with bone cement; and finally, the ball head (2) is plugged into the phalangeal distal prosthesis (3).
2. The semi-wrapped customized finger joint prosthesis according to claim 1, wherein a strip-shaped through hole is formed on the side wall of the ball socket (32) of the distal phalangeal prosthesis, and the strip-shaped through hole forms a limiting notch (33).
3. Semi-enclosed customized finger joint prosthesis according to claim 2, characterized in that the distal phalangeal prosthesis (3) is provided with a distal phalangeal prosthesis socket (32), the ball head (2) being tucked into the distal phalangeal prosthesis socket (32).
4. The semi-enclosed customized finger joint prosthesis according to claim 3, wherein the ball head (2) extends into the distal phalangeal prosthesis socket (32) forming a semi-enclosed fit.
5. Semi-enclosed customized finger joint prosthesis according to claim 1, characterized in that the outer surface of the distal phalangeal prosthesis (3) is uniformly provided with a plurality of grooves (34).
6. The semi-enclosed customized finger joint prosthesis according to claim 1, wherein the distal phalangeal prosthesis (3) is machined from ultra-high molecular weight polyethylene; the ball head (2) is processed by cobalt-chromium-molybdenum alloy; the phalanx proximal prosthesis handle (11) is formed by 3D printing of titanium alloy.
7. The semi-enclosed customized finger joint prosthesis according to claim 1, wherein the surface of the proximal phalanx prosthesis stem (11) is in the shape of irregular hollowed-out holes.
8. The semi-enclosed customized finger joint prosthesis according to claim 1, wherein the top of the proximal phalanx prosthesis (1) is provided with a proximal phalanx prosthesis threaded hole (12), and the lower part of the ball head (2) is provided with a thread, by which the ball head (2) is screwed into the proximal phalanx prosthesis threaded hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110704265.XA CN113425467A (en) | 2021-06-24 | 2021-06-24 | Semi-enclosed customized finger joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110704265.XA CN113425467A (en) | 2021-06-24 | 2021-06-24 | Semi-enclosed customized finger joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113425467A true CN113425467A (en) | 2021-09-24 |
Family
ID=77753939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110704265.XA Pending CN113425467A (en) | 2021-06-24 | 2021-06-24 | Semi-enclosed customized finger joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113425467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220110664A1 (en) * | 2020-10-09 | 2022-04-14 | Thomas Zink | Two-piece polyaxial titanium hammertoe device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6454808B1 (en) * | 1998-01-28 | 2002-09-24 | M-E-System Inc. | Finger joint prosthesis |
| EP1632200A1 (en) * | 2004-09-02 | 2006-03-08 | ESKA Implants GmbH & Co. | Carpometacarpal thumb joint prosthesis |
| CN109481098A (en) * | 2018-12-04 | 2019-03-19 | 北京市春立正达医疗器械股份有限公司 | Toe joint prosthese |
| CN211560548U (en) * | 2019-11-04 | 2020-09-25 | 中国人民解放军联勤保障部队第九二〇医院 | 3D printed micropore multi-titanium assembled type full wrist joint prosthesis |
| CN111743666A (en) * | 2020-07-08 | 2020-10-09 | 北京中安泰华科技有限公司 | Implanted finger joint prosthesis |
-
2021
- 2021-06-24 CN CN202110704265.XA patent/CN113425467A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6454808B1 (en) * | 1998-01-28 | 2002-09-24 | M-E-System Inc. | Finger joint prosthesis |
| EP1632200A1 (en) * | 2004-09-02 | 2006-03-08 | ESKA Implants GmbH & Co. | Carpometacarpal thumb joint prosthesis |
| CN109481098A (en) * | 2018-12-04 | 2019-03-19 | 北京市春立正达医疗器械股份有限公司 | Toe joint prosthese |
| CN211560548U (en) * | 2019-11-04 | 2020-09-25 | 中国人民解放军联勤保障部队第九二〇医院 | 3D printed micropore multi-titanium assembled type full wrist joint prosthesis |
| CN111743666A (en) * | 2020-07-08 | 2020-10-09 | 北京中安泰华科技有限公司 | Implanted finger joint prosthesis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220110664A1 (en) * | 2020-10-09 | 2022-04-14 | Thomas Zink | Two-piece polyaxial titanium hammertoe device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111743666A (en) | Implanted finger joint prosthesis | |
| CN113425467A (en) | Semi-enclosed customized finger joint prosthesis | |
| CN216535677U (en) | Customized finger joint prosthesis | |
| CN105496612A (en) | Finger joint prosthesis | |
| CN109259903A (en) | Type femoral bone end prosthesis | |
| CN203328855U (en) | Bionic hip joint combining body | |
| CN201806801U (en) | Furcal femoral handle | |
| CN211409540U (en) | Femoral stem prosthesis and artificial hip joint prosthesis | |
| CN216535683U (en) | Wrist joint prosthesis | |
| CN215019753U (en) | Outside adduction femoral stem | |
| CN212382792U (en) | Implanted finger joint prosthesis | |
| CN211067219U (en) | Hip joint prosthesis | |
| CN209377811U (en) | Type femoral bone end prosthesis | |
| CN216090946U (en) | Handle type customized metacarpal prosthesis | |
| CN208851721U (en) | A kind of implanting instrument | |
| CN209048363U (en) | A kind of orthopaedics implant | |
| CN211512198U (en) | Finger joint implant | |
| CN216090944U (en) | Spiral bionic metacarpal prosthesis | |
| CN216535682U (en) | Metacarpophalangeal joint prosthesis | |
| CN110840633A (en) | Finger joint implant | |
| CN216318226U (en) | Artificial hip joint prosthesis metal ball head | |
| CN214632509U (en) | Femoral stem | |
| CN215130917U (en) | Femoral stem with chamfer at outer side | |
| CN213346178U (en) | Femoral stem prosthesis | |
| CN215080281U (en) | Femoral stem with equal outside chamfers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210924 |
|
| RJ01 | Rejection of invention patent application after publication |