CN211433243U - Knee joint intramedullary positioner - Google Patents
Knee joint intramedullary positioner Download PDFInfo
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- CN211433243U CN211433243U CN201922466855.4U CN201922466855U CN211433243U CN 211433243 U CN211433243 U CN 211433243U CN 201922466855 U CN201922466855 U CN 201922466855U CN 211433243 U CN211433243 U CN 211433243U
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- positioning device
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Abstract
The utility model discloses a knee joint is positioner in marrow belongs to knee joint is intramedullary and is located technical field, cut bone locator and distal end bone lamella including reloading handle, thighbone marrow, reloading handle right-hand member is provided with the thighbone marrow positioner, and thighbone marrow positioner right-hand member is provided with the distal end and cuts the bone locator, and the welding of distal end bone locator right-hand member has the distal end to cut the bone lamella. The utility model is simple in operation, humanized structural design to make it do benefit to going on of operation, be provided with more thighbone angle of turning up, can adopt different angles of turning up according to the in service behavior of difference, turn to accurately, can satisfy clinical needs, behind the lock dead broach, can be convenient demolish the handle of reloading, thereby make things convenient for going on of operation more, can also practice thrift the time of operation effectively, reduce the accident of operation in-process.
Description
Technical Field
The utility model relates to a positioner especially relates to a knee joint is positioner in marrow belongs to knee joint location technical field in the marrow.
Background
The knee joint intramedullary positioner is an instrument for performing the distal end osteotomy positioning of the femur by utilizing a medullary cavity hole opened on the femur in the knee joint operation, and is used for the knee joint surface replacement operation. The existing knee joint intramedullary positioner is a necessary instrument in knee joint operation, is an independent instrument, is very important for smooth operation, adjusts the result of the eversion angle, seriously influences the prosthesis installation and the inspection of the force line to be carried out, and is very important for the artificial total knee joint replacement operation.
Although the existing knee joint intramedullary positioner can intercept the contact of the prosthesis in the knee joint operation, a plurality of defects are found in the use of the existing knee joint intramedullary positioner in the actual use, so that the knee joint femoral medullary cavity positioner cannot achieve the optimal use effect in the actual application. The existing instrument cannot meet the problem that the femoral valgus angles of all patients correspond one to one, and when the existing knee joint femoral medullary cavity positioner is used, the scale of the instrument and the femoral valgus angle do not correspond, so that the distal osteotomy is not accurate.
The intramedullary positioner of current knee joint, the angle of the adjustable thighbone angle of turning up of intramedullary positioner is comprehensive inadequately, can only deal with normal angle, can not satisfy the operation demand completely, and current intramedullary positioner is bulky, and the structure is loaded down with trivial details, uses inconveniently, and intramedullary positioner can demolish the dismouting handle after locking the broach, makes things convenient for the operation to go on.
SUMMERY OF THE UTILITY MODEL
The main purpose of the utility model is to select less in order to solve the thighbone angle of turning up, feel heavier, use inconvenient problem, and provide a knee joint intramedullary positioner to reach thighbone angle of turning up and select many, feel lightly, convenient to use swift purpose.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a knee joint intramedullary positioner, includes that the handle of reloading, thighbone marrow positioner, distal end cut bone positioner and distal end cut the hone lamella, the handle right-hand member of reloading is provided with thighbone marrow positioner, thighbone marrow positioner right-hand member is provided with the distal end and cuts bone positioner, the welding of distal end cut bone positioner right-hand member has the distal end to cut the hone lamella, distal end cuts bone lamella one side and is provided with the broach, broach one side is provided with the front end, be provided with a plurality of locator nails on the front end, locator nail right side is provided with the twist grip, the twist grip right side is provided with the thighbone marrow positioner, thighbone marrow positioner one side is provided with the knob.
Preferably, a steel ball groove is formed in the side face of the front end, a steel ball is arranged in the steel ball groove, and the distal osteotomy positioner and the distal osteotomy plate are both arranged above the front end.
Preferably, the right end of the rotating handle is fixedly connected with a rear cover through a plurality of screws.
Preferably, a rotating shaft is arranged between the knob and the broach and is sleeved outside the broach.
Preferably, a knob pin is arranged between the knob and the rotating shaft, and a pin is arranged between the front end and the rotating shaft.
Preferably, a positioning pin is arranged at the joint of the knob and the rotating shaft, and the rotating shaft penetrates through the knob.
Preferably, the tail end of the broach is provided with a clamping groove, and the reloading handle is arranged on the clamping groove.
Preferably, a button is arranged on one side of the rotating handle, and a spring is arranged between the button and the rotating handle.
Preferably, the surface of the rotating handle is provided with a dial, and the upper surface of the rear cover is provided with zero scale marks.
Preferably, the inner side of the reloading handle is provided with an anti-slip layer, and the rotating handle is a circular truncated cone-shaped handle.
The utility model has the advantages of: according to the utility model discloses a knee joint intramedullary positioner, easy operation, humanized structural design to make it do benefit to going on of operation, be provided with more thighbone angle of turning up, can adopt different angles of turning up according to the in service behavior of difference, turn to accurately, can satisfy clinical needs, behind the lock dead broach, can be convenient demolish the dismouting handle, thereby make things convenient for going on of operation more, can also practice thrift the time of operation effectively, reduce the accident of operation in-process.
Drawings
FIG. 1 is a schematic view of the overall structure of a preferred embodiment of the knee joint intramedullary positioning device according to the present invention;
FIG. 2 is a schematic top view of a preferred embodiment of the knee joint intramedullary positioning device according to the present invention;
FIG. 3 is a schematic view of the overall side structure of a preferred embodiment of the knee joint intramedullary positioning device according to the present invention;
fig. 4 is a schematic view of the overall internal structure of a preferred embodiment of the knee joint intramedullary positioning device according to the present invention.
In the figure: 1-front end, 2-rotating handle, 3-back cover, 4-knob pin, 5-knob, 6-intramedullary nail, 7-rotating shaft, 8-screw, 9-pin, 10-locator nail, 11-steel ball, 12-button, 13-reloading handle, 14-femur intramedullary locator, 15-distal osteotomy locator and 16-distal osteotomy plate.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-4, the knee joint intramedullary positioning device provided by this embodiment includes a replacement handle 13, a femur intramedullary positioner 14, a distal osteotomy positioner 15 and a distal osteotomy plate 16, the femur intramedullary positioner 14 is provided at the right end of the replacement handle 13, the distal osteotomy positioner 15 is provided at the right end of the femur intramedullary positioner 14, the distal osteotomy plate 16 is welded at the right end of the distal osteotomy positioner 15, a medullary needle 6 is provided at one side of the distal osteotomy plate 16, a front end 1 is provided at one side of the medullary needle 6, a plurality of positioner nails 10 are provided at the front end 1, a rotating handle 2 is provided at the right side of the positioner nails 10, the femur intramedullary positioner 14 is provided at the right side of the rotating handle 2, and a knob 5 is provided at one side of the femur intramedullary. Easy operation, humanized structural design to make it do benefit to going on of operation, be provided with more thighbone angle of turning up, can adopt different angles of turning up according to the in service behavior of difference, turn to accurately, can satisfy clinical needs, after locking the dead broach 6, can be convenient demolish and change dress handle 13, thereby make things convenient for going on of operation more, can also practice thrift the time of operation effectively, reduce the accident of operation in-process.
In the present embodiment, as shown in fig. 1 and 2, a steel ball groove is formed on the side surface of the front end 1, a steel ball 11 is disposed in the steel ball groove, and the distal osteotomy locator 15 and the distal osteotomy plate 16 are both disposed above the front end 1. The right end of the rotating handle 2 is fixedly connected with a rear cover 3 through a plurality of screws 8. A rotating shaft 7 is arranged between the knob 5 and the broach 6, and the rotating shaft 7 is sleeved outside the broach 6. Fix through setting up a plurality of screws 8, dismantle with the installation convenience more, still have higher stability.
In the present embodiment, as shown in fig. 3 and 4, a knob pin 4 is provided between the knob 5 and the rotary shaft 7, and a pin 9 is provided between the tip 1 and the rotary shaft 7. The joint of the knob 5 and the rotating shaft 7 is provided with a positioning pin, and the rotating shaft 7 penetrates through the knob 5. The tail end of the broach 6 is provided with a clamping groove, and the reloading handle 13 is arranged on the clamping groove. A button 12 is arranged on one side of the rotating handle 2, and a spring is arranged between the button 12 and the rotating handle 2. The surface of the rotating handle 2 is provided with a dial scale, and the upper surface of the rear cover 3 is provided with zero scale marks. The inner side of the reloading handle 13 is provided with an anti-slip layer, and the rotating handle 2 is a truncated cone-shaped handle. Through setting up and changing dress handle 13, can be more convenient fix a position, simplify the operation effectively.
In this embodiment, as shown in fig. 1 to 4, the working process of the knee joint intramedullary positioning device provided by this embodiment is as follows:
step 1: the front end 1 and the rotating shaft 7 are matched and fixed by using a pin 9, and a locator pin 10 is inserted into a pin hole of the front end 1;
step 2: then, two steel balls 11 are placed in the steel ball groove at the front end 1, and a button 12 and a spring are arranged in the rotating handle 2 in a matching manner;
and step 3: then inserting the rotating shaft 7, adjusting to a corresponding angle, then installing the rear cover 3 and the rotating handle 2 together, adjusting the rotating handle 2 again to a proper angle, and keeping the rotating handle aligned with the 0 scale mark on the rear cover 3;
and 4, step 4: finally, the knob 5 is inserted on the rotating shaft 7, and the knob pin 4 is inserted to be fixed.
To sum up, in this embodiment, according to the knee joint intramedullary positioner of this embodiment, easy operation, humanized structural design to make it do benefit to going on of operation, be provided with more thighbone angle of turning up, can adopt different angle of turning up according to the in service behavior of difference, turn to accurately, can satisfy clinical needs, after locking up the broach 6, can be convenient demolish and change dress handle 13, thereby make things convenient for going on of operation more, can also practice thrift the time of operation effectively, reduce the accident in the operation process. Fix through setting up a plurality of screws 8, dismantle with the installation convenience more, still have higher stability. Through setting up and changing dress handle 13, can be more convenient fix a position, simplify the operation effectively.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (10)
1. A knee joint intramedullary positioning device is characterized by comprising a replacement handle (13), a femur intramedullary positioner (14), a distal osteotomy positioner (15) and a distal osteotomy plate (16), a femur marrow inner positioner (14) is arranged at the right end of the reloading handle (13), a distal osteotomy positioner (15) is arranged at the right end of the femur marrow inner positioner (14), a far-end bone cutting plate (16) is welded at the right end of the far-end bone cutting positioner (15), a broach (6) is arranged at one side of the far-end bone cutting plate (16), a front end (1) is arranged at one side of the broach (6), a plurality of locator nails (10) are arranged on the front end (1), a rotating handle (2) is arranged on the right side of each locator nail (10), the femoral head is characterized in that a femoral bone marrow inner positioner (14) is arranged on the right side of the rotating handle (2), and a knob (5) is arranged on one side of the femoral bone marrow inner positioner (14).
2. The knee joint intramedullary positioning device according to claim 1, characterized in that a steel ball groove is formed in the side surface of the front end (1), a steel ball (11) is arranged in the steel ball groove, and the distal osteotomy positioner (15) and the distal osteotomy plate (16) are both arranged above the front end (1).
3. The knee joint intramedullary positioning device according to claim 1, characterized in that the right end of the rotating handle (2) is fixedly connected with a rear cover (3) through a plurality of screws (8).
4. The knee joint intramedullary positioning device according to claim 1, characterized in that a rotating shaft (7) is arranged between the knob (5) and the broach (6), and the rotating shaft (7) is sleeved outside the broach (6).
5. A knee joint intramedullary positioning device according to claim 4, characterized in that a knob pin (4) is arranged between the knob (5) and the rotation axis (7), and a pin (9) is arranged between the front end (1) and the rotation axis (7).
6. The knee joint intramedullary positioning device according to claim 4, characterized in that a positioning pin is arranged at the joint of the knob (5) and the rotating shaft (7), and the rotating shaft (7) penetrates through the knob (5).
7. The knee joint intramedullary positioning device according to claim 1, wherein a slot is formed at the tail end of the broach (6), and the reloading handle (13) is mounted on the slot.
8. The knee joint intramedullary positioning device according to claim 1, characterized in that a button (12) is arranged on one side of the rotating handle (2), and a spring is arranged between the button (12) and the rotating handle (2).
9. A knee joint intramedullary positioning device according to claim 3, characterized in that the surface of the rotating handle (2) is provided with a dial and the upper surface of the back cover (3) is provided with zero graduation line.
10. The knee joint intramedullary positioning device according to claim 1, characterized in that an anti-slip layer is arranged on the inner side of the reloading handle (13), and the rotating handle (2) is a truncated cone-shaped handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922466855.4U CN211433243U (en) | 2019-12-31 | 2019-12-31 | Knee joint intramedullary positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922466855.4U CN211433243U (en) | 2019-12-31 | 2019-12-31 | Knee joint intramedullary positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211433243U true CN211433243U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922466855.4U Active CN211433243U (en) | 2019-12-31 | 2019-12-31 | Knee joint intramedullary positioner |
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| CN (1) | CN211433243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117084751A (en) * | 2023-10-18 | 2023-11-21 | 深圳市第二人民医院(深圳市转化医学研究院) | Knee joint intramedullary positioning device |
-
2019
- 2019-12-31 CN CN201922466855.4U patent/CN211433243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117084751A (en) * | 2023-10-18 | 2023-11-21 | 深圳市第二人民医院(深圳市转化医学研究院) | Knee joint intramedullary positioning device |
| CN117084751B (en) * | 2023-10-18 | 2023-12-22 | 深圳市第二人民医院(深圳市转化医学研究院) | Knee joint intramedullary positioning device |
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