CN112370223A - Adjustable femur trial condyle and system comprising same - Google Patents
Adjustable femur trial condyle and system comprising same Download PDFInfo
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- CN112370223A CN112370223A CN202011181621.6A CN202011181621A CN112370223A CN 112370223 A CN112370223 A CN 112370223A CN 202011181621 A CN202011181621 A CN 202011181621A CN 112370223 A CN112370223 A CN 112370223A
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- condyle
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/461—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dentistry (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The application relates to an adjustable thighbone trial condyle and system comprising the same, which belongs to the technical field of medical instruments and comprises: the trial condyle body is provided with a plurality of guide holes for bone drills to pass through, and the surface of one side of the trial condyle body, which faces the femoral condyle, is provided with a plurality of fixing bulges. The application provides an adjustable thighbone examination condyle and including its system can adjust the horizontal position of thighbone examination condyle, is favorable to improving the unicondylar operation effect.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to an adjustable femur trial condyle and a system comprising the same.
Background
The trial condyle of the unicondylar operation is an instrument for solving the problem of femur positioning in the knee joint operation, and the trial condyle of the femur is an independent instrument and is matched with an osteotomy guide and a femur drill for use. At present, when a unicondylar operation is performed, a resection guide is generally adopted to cooperate with a resection saw to resect a femoral condyle, and after the resection is completed, mounting holes for mounting a trial condyle and a femoral condyle prosthesis are drilled on a femur along guide holes on the resection guide.
In view of the above-mentioned related art, the inventor believes that the mounting hole is formed along the guide hole of the osteotomy guide, and the position in the transverse direction cannot be adjusted during the trial condylar mounting, which may not achieve the optimal surgical effect.
Disclosure of Invention
To ameliorate the problem of the relative art trial condyles being unadjustable in position in the transverse direction when installed, the present application provides an adjustable femoral trial condyle and a system comprising the same.
In a first aspect, the present application provides an adjustable femoral trial condyle, which adopts the following technical solution:
an adjustable femoral trial condyle comprising:
the trial condyle comprises a trial condyle body, wherein a plurality of guide holes for bone drills to pass through are formed in the trial condyle body, and a plurality of fixing bulges are arranged on the surface of one side, facing the femoral condyle, of the trial condyle body.
By adopting the technical scheme, the position of the tested condyle can be adjusted, the mounting hole for mounting the tested condyle prosthesis is drilled through the guide hole after the tested condyle position is determined, the mounting precision of the tested condyle prosthesis can be improved, and the operation effect is improved.
Optionally, the fixing protrusion is conical or pyramidal.
Through adopting above-mentioned technical scheme, be convenient for install the examination condyle in the thighbone.
Optionally, the height of the fixing protrusion is 2-4 mm, and the diameter of the fixing protrusion is 1-3 mm.
Through adopting above-mentioned technical scheme, can reduce the damage degree of fixed protruding to the thighbone.
Optionally, a lateral surface of the trial condyle body facing the femoral condyle comprises a first plane, a second plane and a third plane, and the fixing protrusion is located on the first plane and the second plane;
the first plane and the second plane form an obtuse angle, and the second plane and the third plane form an obtuse angle.
By adopting the technical scheme, the trial condyle can be matched with the surface of the resected femoral condyle.
Optionally, the number of the guide holes is two, the two guide holes are respectively a first guide hole and a second guide hole, the first guide hole penetrates through the trial condyle body from the first plane, the second guide hole penetrates through the trial condyle body from the second plane, and an included angle between the axes of the first guide hole and the second guide hole and the third plane is 15 °.
Through adopting above-mentioned technical scheme, can be convenient for try the installation of condyle prosthesis through guiding hole processing mounting hole.
In a second aspect, the present application provides an adjustable femoral condyle trial system, which employs the following technical solutions:
an adjustable femoral trial condyle system comprising the adjustable femoral trial condyle described above, further comprising:
an osteotomy guide;
the osteotomy guide comprises an abutting part and a guide part, wherein the abutting part is arranged at the lower end of the guide part close to the surface of one side of the femoral condyle and is vertical to the guide part; the guide part is provided with a first guide groove and a second guide groove which play a role in guiding the osteotomy saw;
when the femoral condyle guiding device is used, the abutting part abuts against the femoral condyle and is parallel to the length direction of a femur, and the guiding part abuts against one end, away from the femur, of the femoral condyle;
the surface of the femoral trial condyle facing the femoral condyle matches the shape of the femoral condyle osteotomy surface formed along the osteotomy guide.
Through adopting above-mentioned technical scheme, thereby can match with thighbone trial condyle through cutting bone director cooperation cut bone saw to carry out moulding to the thighbone condyle.
Alternatively, the first guide groove and the second guide groove have open ends provided at sides of the guide portion.
Through adopting above-mentioned technical scheme, be convenient for insert the osteotomy saw and cut the bone operation in first guide way and the second guide way.
Optionally, the guide portion is provided with a fixing nail hole.
Through adopting above-mentioned technical scheme, can be fixed in the thighbone condyle with cutting the bone director, be convenient for cut the bone operation.
Optionally, a side surface of the guide portion away from the femoral condyle is provided with a connecting portion for connecting with an external access tool.
Through adopting above-mentioned technical scheme, be convenient for get the operation of putting to cutting the bone director.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the position of the femoral condyle trial can be adjusted relative to the femur, and the mounting hole is drilled after the proper position for mounting the femoral condyle prosthesis is determined, so that the operation precision and effect can be improved;
2. the osteotomy surface cut by the osteotomy guider can be well matched with the femoral trial condyle, and the operation effect is ensured.
Drawings
FIG. 1 is a side view of an adjustable femoral trial condyle according to an embodiment of the present application;
FIG. 2 is a front view of an adjustable femoral trial condyle of an embodiment of the present application;
FIG. 3 is a longitudinal cross-sectional view of an adjustable femoral trial condyle according to an embodiment of the present application;
FIG. 4 is a schematic three-dimensional view of an osteotomy guide of an embodiment of the present application;
figure 5 is a side view of an osteotomy guide of an embodiment of the present application.
Description of reference numerals: 1. trial condylar bodies; 11. a first plane; 12. a second plane; 13. a third plane; 14. a fixed protrusion; 15. a first guide hole; 16. a second guide hole; 2. an osteotomy guide; 21. an abutting portion; 22. a guide portion; 221. a first guide groove; 222. a second guide groove; 223. fixing nail holes; 224. a connecting portion.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Referring to fig. 1, the present application discloses an adjustable femoral trial condyle, comprising a trial condyle body 1. One side surface of the trial condyle body 1 adjacent to the femoral condyle comprises a first plane 11, a second plane 12 and a third plane 13. The first plane 11 and the second plane 12 form an obtuse angle, the second plane 12 and the third plane 13 form an obtuse angle, and the surface of the trial condyle body 1 close to one side of the femoral condyle is matched with the shape of the osteotomy surface of the femoral condyle after osteotomy, so that the femoral trial condyle can be conveniently positioned and installed. The surface of one side of the trial condyle body 1, which is far away from the femoral condyle, is arc-shaped, so that the femoral condyle prosthesis can be simulated conveniently, and the optimal installation position of the femoral condyle prosthesis can be determined through the flexion and extension movement of the knee joint.
Referring to fig. 1, a fixing protrusion 14 is provided on a side surface of the trial condyle body 1 close to the femoral condyle, and the fixing protrusion 14 can fix the femoral trial condyle on the resected surface of the femoral condyle. In order to facilitate the installation of the femoral trial condyle onto the resected surface of the femoral condyle, the fixation protrusion 14 may be provided with a conical or pyramidal shape. The size of the fixing protrusion 14 can be set as required, in order to avoid the problem that the fixing protrusion 14 causes large damage to bone, which is not beneficial to follow-up punching and installation of the femoral condyle prosthesis, the height of the fixing protrusion 14 can be set to be 2-4 mm, and the diameter can be set to be 1-3 mm.
The fixing protrusion 14 may be provided on the first plane 11, the second plane 12, the third plane 13, or a plurality of surfaces at the same time. In order to facilitate the installation of the femoral trial condyles by using an external tool, the fixing protrusions 14 are preferably disposed on the first plane 11 and the second plane 12, and the number of the fixing protrusions 14 on the first plane 11 and the second plane 12 may be set as desired, which is not particularly limited herein. In the present application, the adjustable femoral trial condyle can be made of medical stainless steel, and the fixing protrusion 14 can be integrally formed with the trial condyle body by precision casting.
Referring to fig. 2 and 3, the trial condyle body 1 is provided with a plurality of guide holes, and the guide holes are through holes extending from a side surface of the trial condyle body 1 far away from the femoral condyle to a side surface near the femoral condyle. The number of the guide holes is at least two, and after the position of the femoral trial condyle relative to the femur is determined, a bone drill can be used for machining mounting holes for mounting the femoral condyle prosthesis on the femur along the guide holes. The plurality of guide holes may be arranged along the length direction or the width direction on the surface of the trial condyle body 1 on the side far away from the femoral condyle, or other arrangement modes may also be adopted. Several pilot holes may be provided at an angle of 10-20 degrees to the third plane 13 to facilitate subsequent installation of the femoral condyle prosthesis. For example, when the number of the guide holes is two, the two guide holes are a first guide hole 15 and a second guide hole 16, the first guide hole 15 extends through the trial condyle body 1 from the first plane 11, the second guide hole 16 extends through the trial condyle body 1 from the second plane 12, and the included angle between the two guide holes and the third plane 13 may be 15 °.
The embodiment of the application also discloses an adjustable femur trial condyle system, which comprises the adjustable femur trial condyle and the osteotomy guide 2.
Referring to fig. 4 and 5, the osteotomy guide 2 includes an abutment portion 21 and a guide portion 22, the abutment portion 21 being disposed at a lower end of the guide portion 22 near a femoral condyle side surface and being disposed perpendicular to the guide portion 22. The abutting portion 21 is plate-shaped, and when in use, the abutting portion 21 abuts against the femoral condyle and is parallel to the longitudinal direction of the femur, and the surface of the guide portion 22 on the side close to the femoral condyle also abuts against the femoral condyle.
The guide portion 22 is provided with a first guide groove 221 and a second guide groove 222, and the osteotomy saw can perform osteotomy shaping on the femoral condyle along the first guide groove 221 and the second guide groove 222. The angle between the extension lines of the first guide groove 221 and the second guide groove 222 extending to one side of the femoral condyle is equal to the angle between the second plane 12 and the third plane 13 of the femoral condyle. Therefore, after the osteotomy saw carries out osteotomy modeling on the femoral condyle along the osteotomy guide 2, the shape of the osteotomy surface of the femoral condyle after osteotomy is matched with the surface shape of the side, close to the femoral condyle, of the femoral trial condyle.
To facilitate insertion of the osteotomy saw into the first guide groove 221 and the second guide groove 222 for the osteotomy operation, the first guide groove 221 and the second guide groove 222 have open ends, which are located at one side of the guide portion 22.
The guide portion 22 is provided with a plurality of fixation nail holes 223 through which bone nails may be passed to fix the osteotomy guide 2 to the femoral condyle. The fixing nail hole 223 may be located at the upper portion, the lower portion and the lateral portion of the side surface of the guide portion 22 away from the femoral condyle, and the fixing nail hole 223 may be perpendicular to the side surface of the guide portion 22 away from the femoral condyle and may also form an included angle with the side surface of the guide portion 22 away from the femoral condyle, which may be set by those skilled in the art as required and is not limited specifically herein.
The guide portion 22 is further provided with a connecting portion 224 on a side surface thereof remote from the femoral condyle, and the connecting portion 224 is used for connecting with an external access tool, thereby facilitating the picking and placing of the osteotomy guide 2. The connecting portion 224 may be a hole or slot-like structure that is configured to mate with an external access tool, or may be another shape or structure that is configured to mate with an external access tool. Due to the small size of the osteotomy guide 2 and the limited operating space during use, the osteotomy guide 2 is conveniently accessible by providing the connecting portion 224.
The working principle of the adjustable femur trial condyle and the system comprising the same provided by the application is as follows:
in the case of a femoral unicondylar procedure, a first resection is performed on the femoral condyle, and after the first resection, a plane is formed at the end of the femoral condyle remote from the femur, which plane is in contact with the guide portion 22 of the resection guide 2.
The osteotomy guide 2 is attached, the guide portion 22 of the osteotomy guide 2 is brought into contact with the osteotomy surface formed by the first osteotomy, and the contact portion 21 of the osteotomy guide 2 is brought into contact with the femoral condyle uncut portion. The osteotomy guide 2 is fixedly connected with the femur by using bone nails, and the osteotomy saw is used for performing an osteotomy operation on the femoral condyle along the first guide groove and the second guide groove.
After the osteotomy is completed, the osteotomy guide 2 is removed and the femoral trial condyle is mounted to the osteotomy surface. Whether the installation position of the femoral trial condyle is suitable or not is judged through the flexion and extension movement of the joint, and if the installation position of the femoral trial condyle is not suitable, the femoral trial condyle can be detached and transversely moved to a suitable position. When the position of the femoral trial condyle is determined, a bone drill can be used for drilling a mounting hole on the femur through a guide hole on the femoral trial condyle. After the installation hole is drilled, the femur trial condyle can be detached, and the femur condyle prosthesis can be installed through the installation hole, so that the operation is completed.
The utility model provides an adjustable thighbone examination condyle and including its system when carrying out thighbone unicondylar operation, can adjust the position of thighbone examination condyle for the thighbone earlier, bore the mounting hole again when thighbone examination condyle adjusts to the optimal position to guarantee the installation accuracy of thighbone condyle prosthesis, reach the optimal operation effect.
The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An adjustable femoral trial condyle comprising:
the bone drill test condyle comprises a test condyle body (1), wherein a plurality of guide holes for bone drill to pass through are formed in the test condyle body (1), and a plurality of fixing protrusions (14) are arranged on the surface of one side, facing the femoral condyle, of the test condyle body (1).
2. The adjustable femoral trial condyle according to claim 1, wherein said fixation protrusion (14) is conical or pyramidal in shape.
3. The adjustable femoral trial condyle according to claim 2, wherein said fixation protrusion (14) has a height of 2-4 mm and a diameter of 1-3 mm.
4. The adjustable femoral trial condyle according to any one of claims 1 to 3, wherein a side surface of said trial condyle body (1) facing the femoral condyle comprises a first plane (11), a second plane (12) and a third plane (13), said fixation protrusion (14) being located on the first plane (11) and the second plane (12);
the first plane (11) and the second plane (12) form an obtuse angle, and the second plane (12) and the third plane (13) form an obtuse angle.
5. The adjustable femoral trial condyle according to claim 4, wherein the number of the guide holes is two, the two guide holes are respectively a first guide hole (15) and a second guide hole (16), the first guide hole (15) penetrates through the trial condyle body (1) from a first plane (11), the second guide hole (16) penetrates through the trial condyle body (1) from a second plane (12), and the axes of the first guide hole (15) and the second guide hole (16) form an angle of 15 degrees with the third plane (13).
6. An adjustable femoral trial system comprising the adjustable femoral trial of any of claims 1-5, further comprising: an osteotomy guide (2);
the osteotomy guide (2) comprises an abutting part (21) and a guide part (22), wherein the abutting part (21) is arranged at the lower end of the guide part (22) close to one side surface of the femoral condyle and is perpendicular to the guide part (22); the guide part (22) is provided with a first guide groove (221) and a second guide groove (222), and the first guide groove (221) and the second guide groove (222) guide the osteotomy saw;
when in use, the abutting part (21) abuts against the femoral condyle and is parallel to the length direction of the femur, and the guide part (22) abuts against one end of the femoral condyle far away from the femur;
the surface of the femoral trial condyle facing the femoral condyle is matched with the shape of the femoral condyle osteotomy surface formed along the osteotomy guide (2).
7. The adjustable femoral trial condyle system according to claim 6, wherein the first guide groove (221) and the second guide groove (222) have open ends disposed at sides of the guide portion (22).
8. The adjustable femoral trial condyle system according to claim 6, wherein said guide portion (22) is provided with a fixation nail hole (223).
9. The adjustable femoral trial condyle system according to claim 6, wherein a side surface of the guide portion (22) remote from the femoral condyle is provided with a connection portion (224) for connection with an external access tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181621.6A CN112370223A (en) | 2020-10-29 | 2020-10-29 | Adjustable femur trial condyle and system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181621.6A CN112370223A (en) | 2020-10-29 | 2020-10-29 | Adjustable femur trial condyle and system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112370223A true CN112370223A (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011181621.6A Withdrawn CN112370223A (en) | 2020-10-29 | 2020-10-29 | Adjustable femur trial condyle and system comprising same |
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| Country | Link |
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| CN (1) | CN112370223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813007A (en) * | 2021-10-13 | 2021-12-21 | 山东大学齐鲁医院(青岛) | Angle-adjustable femoral punching device |
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|---|---|---|---|---|
| US20040153086A1 (en) * | 2003-02-04 | 2004-08-05 | Sanford Adam H. | Provisional orthopedic implant and recutting instrument guide |
| US20100121389A1 (en) * | 2008-11-07 | 2010-05-13 | Howmedica Osteonics Corp. | Method of preparing a femur for implantation of a femoral implant |
| CN102846414A (en) * | 2011-06-30 | 2013-01-02 | 德普伊产品公司 | Polymer femoral trial component |
| CN202960649U (en) * | 2012-11-08 | 2013-06-05 | 天津正天医疗器械有限公司 | Femoral condyle osteotome |
| US20140058398A1 (en) * | 2011-02-24 | 2014-02-27 | Nakashima Medical Co., Ltd. | Surgical Instrument Used in Artificial Knee Joint Replacement Surgery |
| CN104546088A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Customized compound bone cutter for femoral condyle |
| CN107753161A (en) * | 2016-08-17 | 2018-03-06 | 史密夫和内修有限公司 | The test component of position adjustable with drill guide |
| CN110786969A (en) * | 2019-10-28 | 2020-02-14 | 北京市春立正达医疗器械股份有限公司 | Tibial plateau holds in palm and uses its unicondylar knee joint prosthesis |
| CN111467089A (en) * | 2020-05-07 | 2020-07-31 | 苏州微创关节医疗科技有限公司 | Interchangeable type single-condyle femoral prosthesis system and knee joint system |
-
2020
- 2020-10-29 CN CN202011181621.6A patent/CN112370223A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040153086A1 (en) * | 2003-02-04 | 2004-08-05 | Sanford Adam H. | Provisional orthopedic implant and recutting instrument guide |
| US20100121389A1 (en) * | 2008-11-07 | 2010-05-13 | Howmedica Osteonics Corp. | Method of preparing a femur for implantation of a femoral implant |
| US20140058398A1 (en) * | 2011-02-24 | 2014-02-27 | Nakashima Medical Co., Ltd. | Surgical Instrument Used in Artificial Knee Joint Replacement Surgery |
| CN102846414A (en) * | 2011-06-30 | 2013-01-02 | 德普伊产品公司 | Polymer femoral trial component |
| CN202960649U (en) * | 2012-11-08 | 2013-06-05 | 天津正天医疗器械有限公司 | Femoral condyle osteotome |
| CN104546088A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Customized compound bone cutter for femoral condyle |
| CN107753161A (en) * | 2016-08-17 | 2018-03-06 | 史密夫和内修有限公司 | The test component of position adjustable with drill guide |
| CN110786969A (en) * | 2019-10-28 | 2020-02-14 | 北京市春立正达医疗器械股份有限公司 | Tibial plateau holds in palm and uses its unicondylar knee joint prosthesis |
| CN111467089A (en) * | 2020-05-07 | 2020-07-31 | 苏州微创关节医疗科技有限公司 | Interchangeable type single-condyle femoral prosthesis system and knee joint system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813007A (en) * | 2021-10-13 | 2021-12-21 | 山东大学齐鲁医院(青岛) | Angle-adjustable femoral punching device |
| CN113813007B (en) * | 2021-10-13 | 2023-07-18 | 山东大学齐鲁医院(青岛) | Angle-adjustable femur perforating device |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210219 |