CN210811345U - Tibia angled osteotomy device for total knee joint replacement surgery - Google Patents
Tibia angled osteotomy device for total knee joint replacement surgery Download PDFInfo
- Publication number
- CN210811345U CN210811345U CN201921629953.9U CN201921629953U CN210811345U CN 210811345 U CN210811345 U CN 210811345U CN 201921629953 U CN201921629953 U CN 201921629953U CN 210811345 U CN210811345 U CN 210811345U
- Authority
- CN
- China
- Prior art keywords
- deflector
- bone
- shin bone
- shin
- angle
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a shin bone area angle osteotomy device of total knee replacement operation belongs to medical instrument technical field. It includes deflector (1), shin bone cuts bone thickness measuring stick and shin bone extramedulla locating support, its characterized in that: the upper portion of deflector (1) is equipped with cutter groove (2) that are the level form of inclining backward, and the middle part of deflector (1) is equipped with dovetail (3), and the front of deflector (1) is equipped with a plurality of fixed pinholes (4), and the top both ends of deflector (1) are equipped with connecting hole (5), the shin bone cut the bone thickness measuring stick and be connected with deflector (1) through connecting hole (5), shin marrow outer positioning support pass through dovetail (3) and be connected with deflector (1). The utility model discloses a have simple structure, convenient operation, can save operation time, beneficial effect such as accurate determination shin bone osteotomy angle.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to shin bone area angle osteotomy device of total knee replacement operation.
Background
In total knee replacement surgery, tibial osteotomies are often used with extramedullary positioning to determine the osteotomy plane, with a retroversion angle of the osteotomy plane associated with the joint prosthesis, typically 3 ° retroversion. In the current clinical practice, after the surgeon connects the tibial extramedullary positioning system, 2 half to 3 fingers are inserted between the distal ankle joint surface of the femur and the positioning rod, and the osteotomy plane is equal to about 3 °. The retroversion angle of the osteotomy face obtained by the method has a large relation with experience and skill of an operator, and has high error risk.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, convenient operation, can save operation time, can the accurate total knee joint replacement operation shin bone area angle of confirming shin bone osteotomy angle cut bone device to the above-mentioned not enough that exists in the present clinical work.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a total knee joint replacement operation shin bone area angle cuts bone device, includes that deflector, shin bone cut bone thickness measurement pole and shin bone marrow outer locating support, the upper portion of deflector is equipped with the cutter groove that is the level form of inclining backward, and the middle part of deflector is equipped with the dovetail, and the front of deflector is equipped with a plurality of fixed pinholes, and the top both ends of deflector are equipped with the connecting hole, the shin bone cut bone thickness measurement pole and be connected with the deflector through the connecting hole, shin bone marrow outer locating support pass through the dovetail and be connected with the deflector.
The angle that the cutter groove horizontally inclines backwards is 3 degrees.
The angle that the cutter groove horizontally inclines backwards is 5 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a shin bone marrow outer positioning support inserts shin bone intercondylar thorn behind the dovetail, makes deflector and shin bone marrow outer positioning support be 90 degrees perpendicularly, accomplishes accurate positioning, and the rethread takes the angle cutter groove to cut the bone. According to the design of the joint prosthesis, the cutter grooves with different angles are used for osteotomy, so that the retroversion angle precision of an osteotomy surface can be improved, and accurate osteotomy is realized;
2. the utility model discloses a cut bone angle and predetermine through the cutter groove that is the level backward slope form when the instrument preparation, its reasonable in design, convenient, the simple structure of operation. Compared with the estimation method used in the current clinic, the method has simple and easy operation and accurate positioning, and avoids the error caused by the interference of subjective factors such as experience, skill and the like of different operators;
3. the utility model discloses easy and simple to handle, accuracy are high, have still practiced thrift in the art because of measuring repeatedly, the operation time of cutting the bone when realizing accurate cutting the bone, have reduced the intraoperative hemorrhage, have reduced postoperative infection rate and other complications.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic side view of the present invention in the direction of a-a.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic bottom view of the present invention.
In the figure, 1-a guide plate, 2-a cutter groove, 3-a dovetail groove, 4-a fixing needle hole and 5-a tibia osteotomy thickness measuring rod connecting hole.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
As shown in figures 1 to 4, a total knee replacement surgery shin bone area angle cuts bone device, cut bone thickness measurement pole and shin bone extramedulla locating support including deflector, shin bone, the upper portion of deflector is equipped with the cutter groove that is the level form of inclining backward, and the middle part of deflector is equipped with the dovetail, and the front of deflector is equipped with a plurality of fixed pinholes, and the top both ends of deflector are equipped with the connecting hole, the shin bone cut bone thickness measurement pole be connected with the deflector through the connecting hole, shin bone extramedulla locating support pass through the dovetail and be connected with the deflector.
The utility model discloses a theory of operation is: when the tibia osteotomy is carried out, firstly, a guide plate with a cutter groove is connected with the tibia marrow outside positioning bracket through a dovetail groove, the horizontal backward inclination angle of the cutter groove is 3 degrees or 5 degrees (set according to different joint prostheses), and the guide plate and the tibia marrow outside positioning bracket are vertical to each other for 90 degrees. The proximal end of the external tibial bone marrow positioning bracket is fixed at the knee joint anterior cruciate ligament insertion point, and the distal end of the external tibial bone marrow positioning bracket is fixed at the ankle joint center along the tibial crest. At the moment, the guide plate and the horizontal surface of the ground form 0 degree, and the positioning is accurate. The guide plate is connected with the tibia osteotomy thickness measuring rod to determine the tibia osteotomy amount. The fixing needle fixes the guide plate along the fixing needle hole, and the tibia marrow external positioning support is removed to perform tibia lateral osteotomy.
Claims (3)
1. The utility model provides a total knee joint replacement operation shin bone area angle cuts bone device, includes deflector (1), shin bone cuts bone thickness measuring stick and shin bone extramedulla locating support, its characterized in that: the upper portion of deflector (1) is equipped with cutter groove (2) that are the level form of inclining backward, and the middle part of deflector (1) is equipped with dovetail (3), and the front of deflector (1) is equipped with a plurality of fixed pinholes (4), and the top both ends of deflector (1) are equipped with connecting hole (5), the shin bone cut the bone thickness measuring stick and be connected with deflector (1) through connecting hole (5), shin marrow outer positioning support pass through dovetail (3) and be connected with deflector (1).
2. The angled tibial resection device of claim 1, wherein the incision (2) is inclined horizontally backward at an angle of 3 °.
3. The angled tibial resection device of claim 1, wherein the incision (2) is inclined horizontally backward at an angle of 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921629953.9U CN210811345U (en) | 2019-09-27 | 2019-09-27 | Tibia angled osteotomy device for total knee joint replacement surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921629953.9U CN210811345U (en) | 2019-09-27 | 2019-09-27 | Tibia angled osteotomy device for total knee joint replacement surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210811345U true CN210811345U (en) | 2020-06-23 |
Family
ID=71278848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921629953.9U Expired - Fee Related CN210811345U (en) | 2019-09-27 | 2019-09-27 | Tibia angled osteotomy device for total knee joint replacement surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210811345U (en) |
-
2019
- 2019-09-27 CN CN201921629953.9U patent/CN210811345U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9421022B2 (en) | Method and apparatus for total knee arthroplasty | |
| EP2438866B1 (en) | Apparatus for preparing a patient's femur for patellofemoral knee arthroplasty | |
| US9974550B2 (en) | Tibial cutting block | |
| US7967822B2 (en) | Methods and apparatus for orthopedic implants | |
| US7744601B2 (en) | Instrumentation for minimally invasive unicompartmental knee replacement | |
| US9795392B2 (en) | Surgical instrumentation set and surgical technique | |
| US7141053B2 (en) | Methods of minimally invasive unicompartmental knee replacement | |
| US8603095B2 (en) | Apparatuses for femoral and tibial resection | |
| US6056754A (en) | Method and apparatus for patella resection and guide handle | |
| US5702460A (en) | Revision femoral trial prosthesis | |
| AU696251B2 (en) | Distal femoral cutting guide | |
| JPS6329546B2 (en) | ||
| WO1995013034A1 (en) | Distal femoral cutting guide with referencing | |
| CN210811345U (en) | Tibia angled osteotomy device for total knee joint replacement surgery | |
| CN110720962A (en) | Bone cutting system for knee joint replacement | |
| CN211131266U (en) | Bone cutting system for knee joint replacement | |
| CN217696721U (en) | Femoral osteotomy auxiliary tool with linkage of flexion gap and extension gap | |
| CN210784536U (en) | Four-in-one osteotomy plate | |
| CN114948075A (en) | Thighbone drilling guide and thighbone drilling kit of unicondylar knee joint replacement art |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210927 |