CN112245073A - Femoral condyle prosthesis and knee joint prosthesis - Google Patents
Femoral condyle prosthesis and knee joint prosthesis Download PDFInfo
- Publication number
- CN112245073A CN112245073A CN202011158350.2A CN202011158350A CN112245073A CN 112245073 A CN112245073 A CN 112245073A CN 202011158350 A CN202011158350 A CN 202011158350A CN 112245073 A CN112245073 A CN 112245073A
- Authority
- CN
- China
- Prior art keywords
- femoral condyle
- prosthesis
- groove
- intercondylar box
- intercondylar
- 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.)
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Classifications
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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
- A61F2/3859—Femoral components
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
-
- 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
Abstract
The invention provides a femoral condyle prosthesis and a knee joint prosthesis, wherein the femoral condyle prosthesis comprises a femoral condyle body, a semi-open intercondylar box is arranged on the femoral condyle body, a groove is arranged on the intercondylar box, planes are arranged on the femoral condyle body and positioned at two sides of the intercondylar box, and positioning columns are arranged on the planes. Knee prostheses include femoral condyle prostheses. The femur condyle prosthesis and the knee joint prosthesis are provided with semi-open intercondylar boxes, the semi-open intercondylar boxes can improve microbial sealing, and have better connection strength and strong stability, and the fracture of a patient is not easy to occur. The design of the groove of the intercondylar box reserves the position of the bone screw, and after the bone screw passes through the bottom of the groove, the bone screw penetrates through the proximal end of the femur to fix the bone plate and fix the auxiliary function of the bone screw.
Description
Technical Field
The invention relates to the technical field of orthopedic medicine, in particular to a femoral condyle prosthesis and a knee joint prosthesis.
Background
In recent years, artificial femoral condyle prosthetic replacements have been developed and matured rapidly, and more patients have been selected for artificial femoral condyle prosthetic replacements. The existing artificial femoral condyle prosthesis has the following problems that various accidents can occur after the operation of a patient, particularly, the fracture of the femur caused by osteoporosis and the like occurs frequently due to limited movement. In the case of such femoral fractures, it is sometimes necessary to fix the bone plate to the proximal femur with a bone screw, but since the existing femoral condyle to be replaced has an intercondylar box, the penetration of the bone screw into the proximal femur to fix the bone plate is affected.
Disclosure of Invention
The invention provides a femoral condyle prosthesis, and the existing prosthesis has the following problems that a patient with the femoral condyle of an artificial knee joint is fractured, and a bone nail needs to penetrate through the proximal end of the femur to fix a bone plate.
To solve the above technical problem, an embodiment of the present invention provides the following solutions:
the utility model provides a thighbone condyle prosthesis, includes thighbone condyle body be equipped with half open type intercondylar box on the thighbone condyle body, be equipped with the recess on the intercondylar box be located on the thighbone condyle body the both sides department of intercondylar box is equipped with the plane be equipped with the reference column on the plane.
Wherein the length of the groove is more than or equal to 16mm and less than or equal to 20 mm;
the depth of the groove is more than or equal to 5mm and less than or equal to 8 mm.
The groove comprises a first groove in the length direction of the intercondylar box and a second groove in the width direction of the intercondylar box, and the first groove and the second groove are communicated to form the groove.
Wherein, the upper portion of reference column has the toper structure.
Wherein, the axis of reference column is perpendicular the plane.
Wherein, two sides of the intercondylar box on the plane are respectively provided with one positioning column.
A knee joint prosthesis comprising the femoral condyle prosthesis.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme, the femoral condyle prosthesis is provided with the semi-open intercondylar box, the micro-organism sealing can be improved through the semi-open intercondylar box, the connection strength is better, the stability is strong, and the fracture of a patient is not easy to occur. The design of the groove of the intercondylar box reserves the position of the bone penetrating nail, and after the bone penetrating nail penetrates through the bottom of the groove, the bone penetrating nail penetrates through the proximal end of the femur to fix the bone plate, so that the intercondylar box has a good auxiliary function of penetrating nail fixing.
Drawings
FIG. 1 is a schematic structural view of a femoral condyle prosthesis of the present invention.
Reference numerals:
1. a positioning column; 2. an intercondylar box; 3. and (4) a groove.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, the present embodiment provides a femoral condyle prosthesis, which includes a femoral condyle body, a semi-open intercondylar box 2 is disposed on the femoral condyle body, a groove 3 is disposed on the intercondylar box 2, two sides of the intercondylar box 2 on the femoral condyle body are provided with a plane, and a positioning column 1 is disposed on the plane. The femoral condyle prosthesis of the embodiment is provided with the semi-open intercondylar box 2, the semi-open intercondylar box 2 can improve the microbial sealing, the connection strength is better, the stability is strong, and the fracture of a patient is not easy to occur. The design of the groove 3 of the intercondylar box 2 reserves the position of the bone screw, after the bone screw passes through the bottom of the groove 3, the bone screw penetrates through the proximal end of the femur to fix the bone plate, so that the intercondylar box can be well avoided, and the auxiliary function of fixing the bone screw is realized.
The length of the groove 3 in the embodiment is more than or equal to 16mm and less than or equal to 20 mm; the depth of the groove 3 is more than or equal to 5mm and less than or equal to 8 mm. The length and the depth of the groove 3 are limited in the size range, so that the bone nail can well avoid opening the intercondylar box 2 when penetrating into the proximal femur to fix the bone plate. The groove 3 comprises a first groove 3 in the length direction of the intercondylar box 2 and a second groove 3 in the width direction of the intercondylar box 2, and the first groove 3 is communicated with the second groove 3 to form the groove 3.
The upper part of the positioning column 1 of the present embodiment has a conical structure, preferably 45 °, which facilitates the installation of the positioning nail. The axis of the positioning column 1 is vertical to a plane, and two sides of the intercondylar box 2 on the plane are respectively provided with one positioning column 1.
A knee joint prosthesis includes a femoral condyle prosthesis. The knee joint prosthesis of this embodiment has box 2 between semi-open condyle, and box 2 between semi-open condyle can improve the microorganism and seal, has better joint strength, and stability is strong, and the patient is difficult to the fracture. The design of the groove 3 of the intercondylar box 2 reserves the position of a bone screw, and after the bone screw passes through the bottom of the groove 3, the bone screw penetrates through the proximal end of the femur to perform the fixing and screw-penetrating auxiliary function on the bone plate.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The femoral condyle prosthesis is characterized by comprising a femoral condyle body, wherein a semi-open intercondylar box is arranged on the femoral condyle body, a groove is formed in the intercondylar box, planes are arranged on the femoral condyle body and located on two sides of the intercondylar box, and positioning columns are arranged on the planes.
2. The femoral condyle prosthesis according to claim 1, wherein the length of the recess is greater than or equal to 16mm, less than or equal to 20 mm;
the depth of the groove is more than or equal to 5mm and less than or equal to 8 mm.
3. The femoral condyle prosthesis of claim 1, wherein said recess comprises a first recess in a length direction of said intercondylar box and a second recess in a width direction of said intercondylar box, said first recess and said second recess communicating to form a recess.
4. The femoral condyle prosthesis according to claim 1, wherein an upper portion of the positioning post has a tapered configuration.
5. The femoral condyle prosthesis according to claim 1, wherein an axis of said positioning post is perpendicular to said plane.
6. The femoral condyle prosthesis according to claim 1, wherein one of said positioning posts is disposed on said planar surface on each side of said intercondylar box.
7. A knee joint prosthesis comprising a femoral condyle prosthesis according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158350.2A CN112245073B (en) | 2020-10-26 | 2020-10-26 | Femoral condyle prosthesis and knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158350.2A CN112245073B (en) | 2020-10-26 | 2020-10-26 | Femoral condyle prosthesis and knee joint prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112245073A true CN112245073A (en) | 2021-01-22 |
| CN112245073B CN112245073B (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011158350.2A Active CN112245073B (en) | 2020-10-26 | 2020-10-26 | Femoral condyle prosthesis and knee joint prosthesis |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101522137A (en) * | 2006-09-25 | 2009-09-02 | 维持特殊外科医院的纽约残疾人协会 | Posterior stabilized knee prosthesis |
| CN202724044U (en) * | 2012-08-18 | 2013-02-13 | 深圳清华大学研究院 | Knee prosthesis |
| CN204671326U (en) * | 2015-05-21 | 2015-09-30 | 北京爱康宜诚医疗器材股份有限公司 | Lateral femoral condyle prosthesis parts |
| CN207693729U (en) * | 2018-07-04 | 2018-08-07 | 上海龙慧医疗科技有限公司 | The special dissection bion total knee prostheses of orthopedic robot |
| US20200069432A1 (en) * | 2014-01-07 | 2020-03-05 | Derek James Wallace McMinn | Knee Prosthesis |
| CN111529138A (en) * | 2019-12-31 | 2020-08-14 | 北京力达康科技有限公司 | Total knee joint prosthesis |
-
2020
- 2020-10-26 CN CN202011158350.2A patent/CN112245073B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101522137A (en) * | 2006-09-25 | 2009-09-02 | 维持特殊外科医院的纽约残疾人协会 | Posterior stabilized knee prosthesis |
| CN202724044U (en) * | 2012-08-18 | 2013-02-13 | 深圳清华大学研究院 | Knee prosthesis |
| US20200069432A1 (en) * | 2014-01-07 | 2020-03-05 | Derek James Wallace McMinn | Knee Prosthesis |
| CN204671326U (en) * | 2015-05-21 | 2015-09-30 | 北京爱康宜诚医疗器材股份有限公司 | Lateral femoral condyle prosthesis parts |
| CN207693729U (en) * | 2018-07-04 | 2018-08-07 | 上海龙慧医疗科技有限公司 | The special dissection bion total knee prostheses of orthopedic robot |
| CN111529138A (en) * | 2019-12-31 | 2020-08-14 | 北京力达康科技有限公司 | Total knee joint prosthesis |
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| Publication number | Publication date |
|---|---|
| CN112245073B (en) | 2021-10-29 |
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