CN214907666U - Positioning device of total knee joint replacement tibia osteotomy device - Google Patents
Positioning device of total knee joint replacement tibia osteotomy device Download PDFInfo
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- CN214907666U CN214907666U CN202120200407.4U CN202120200407U CN214907666U CN 214907666 U CN214907666 U CN 214907666U CN 202120200407 U CN202120200407 U CN 202120200407U CN 214907666 U CN214907666 U CN 214907666U
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Abstract
The utility model relates to the technical field of positioning devices, in particular to a positioning device of a total knee joint replacement tibia osteotome device, which comprises a fixed rod with an upward opening, a movable rod is inserted in the fixed rod and fixed in the fixed rod through a fixing mechanism, an angle measuring disc is fixedly connected on one side of the movable rod, a scale strip is arranged on the angle measuring disc, a ring groove is arranged on the surface of the angle measuring disc, the section of the ring groove is of a T-shaped structure, a fixed block is sleeved and fixed on the movable rod below the angle measuring disc, one side of the fixed block is rotatably connected with a mounting plate, one side of the mounting plate is coaxially connected with a scale needle which is fixed on one side of the mounting plate, a second fixing screw is arranged on the surface of the scale needle in a threaded manner, the tail end of the second fixing screw is fixedly connected with a second limiting block, the second limiting block is placed in the ring groove, and a plurality of fixing needles are fixed on one side of the fixed rod, the utility model discloses can carry out the effect of fixing a position to the osteotomy ware to can measure the turned angle of osteotomy ware.
Description
Technical Field
The utility model relates to a positioner field especially relates to a positioner of total knee joint replacement shin bone osteotomy ware.
Background
Osteotomy refers to the removal of the necrotic area from the femoral head bearing area and the non-necrotic area from the bearing area. The osteotomy applied to clinic comprises inversion or eversion osteotomy, rotation osteotomy through femoral trochanter and the like, and the method adopted by the total knee joint replacement tibia currently is to position the position of a tibia osteotomy device according to an anterior cruciate ligament tibia dead center positioning method in an extramedullary positioning method.
The positioning device of the existing total knee joint replacement tibial osteotome is simple in structure, and the rotation angle of the tibial osteotome is inconvenient to measure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a positioning device of a total knee joint replacement tibia osteotomy device.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a positioning device of a total knee joint replacement tibia osteotome comprises a fixed rod with an upward opening, wherein a movable rod is inserted into the fixed rod and fixed inside the fixed rod through a fixing mechanism, one side of the movable rod is fixedly connected with an angle measuring disc, a scale bar is arranged on the angle measuring disc, an annular groove is formed in the surface of the angle measuring disc, and the section of the annular groove is of a T-shaped structure;
a fixed block is fixedly sleeved on the movable rod below the angle measuring disc, one side of the fixed block is rotatably connected with an installation plate, one side of the installation plate is coaxially connected with a scale needle, the scale needle is fixed on one side of the installation plate, a second fixing screw is installed on the surface of the scale needle in a threaded manner, the tail end of the second fixing screw is fixedly connected with a second limiting block, and the second limiting block is placed in the annular groove;
a plurality of fixed needles are fixed on one side of the fixed rod, a transverse fixed rod extends and is fixed on one side, close to the fixed needles, of the top of the movable rod, and the movable needles are installed inside the transverse fixed rod through a limiting mechanism.
Preferably, the fixing mechanism comprises a first fixing screw rod in threaded connection with one side of the fixing rod, and one end of the first fixing screw rod is abutted to the movable rod.
Preferably, stop gear is including seting up the rectangle through-hole on the horizontal dead lever top surface, the rectangular channel has been seted up on the horizontal dead lever of rectangle through-hole both sides, two the inside first stopper that is equipped with of inserting jointly of rectangular channel, the activity needle has been placed to rectangle through-hole inside, the activity needle bottom runs through the rectangle through-hole and extends away, first stopper and threaded connection have the rotatory handle of second are run through at activity needle top.
Preferably, a protection strip is fixedly connected to one side edge of the angle measuring disc, and the thickness of the protection strip is larger than that of the scale needle.
Preferably, the bottoms of the two sides of the fixing rod are fixedly connected with a plurality of fixing rings.
Preferably, the top of the second fixing screw is fixedly connected with a first rotating handle
Compared with the prior art, the utility model discloses following beneficial effect has:
one, the utility model discloses, when using, through passing solid fixed ring with the connecting band, fix the dead lever on patient's health, then, insert fixed needle shin bone surface, fix a position the dead lever is vertical, make dead lever and shin bone keep parallel, and at last, adjust the position of activity needle, make activity needle insert the shin bone tip, rotate the rotatory handle of second again, fix the activity needle on horizontal dead lever through the rotatory handle of second, fix the activity needle to the activity needle, thereby fix horizontal dead lever at the shin bone tip, be convenient for operate the osteotomy ware.
Two, the utility model discloses, when using, to cut the bone ware and fix on the mounting panel, then, rotate the mounting panel, cut the bone ware and rotate along with the mounting panel, and mounting panel and scale needle coaxial coupling, thereby through watching the position of scale needle on the angular surveying dish, measure the turned angle of cutting the bone ware, because second clamping screw threaded connection is on the scale needle, through rotating first twist grip, make the second clamping screw rotate, and drive the second stopper and remove to scale needle one side, make second stopper top surface and ring channel interior top surface offset, thereby fix a position the scale needle through second stopper and second clamping screw, thereby realize carrying out the effect of fixing a position to cutting the bone ware, and can measure the turned angle of cutting the bone ware.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall bottom structure of the present invention;
fig. 3 is a schematic structural diagram of a position a in fig. 2 according to the present invention;
fig. 4 is an enlarged cross-sectional view of the transverse fixing rod of the present invention.
In the figure: the device comprises a fixed rod 1, a movable rod 2, a fixed ring 3, a first fixed screw rod 4, a fixed needle 5, an angle measuring disc 6, a protective strip 7, a fixed block 8, a mounting plate 9, a mounting hole 10, a scale needle 11, a scale strip 12, a transverse fixed rod 13, a rectangular through hole 14, a rectangular groove 15, a first limiting block 16, a second fixed screw rod 17, a second limiting block 18, an annular groove 19, a first rotating handle 20, a second rotating handle 21 and a movable needle 22.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
The positioning device of the total knee replacement tibial osteotome as shown in fig. 1-4 comprises a fixed rod 1 with an upward opening, a movable rod 2 is inserted in the fixed rod 1, and the movable rod 2 is fixed in the fixed rod 1 through a fixing mechanism.
The fixing mechanism comprises a first fixing screw rod 4 which is in threaded connection with one side of the fixing rod 1, and one end of the first fixing screw rod 4 is abutted to the movable rod 2.
The implementation mode is specifically as follows:
when using, can adjust the length of movable rod 2 according to the shin bone length of difference, after making the total length of movable rod 2 and dead lever 1 reach appointed length, through rotating first fixing screw 4, make first fixing screw 4 offset with movable rod 2 to fix movable rod 2.
One side of the movable rod 2 is fixedly connected with an angle measuring disc 6, a scale bar 12 is arranged on the angle measuring disc 6, an annular groove 19 is formed in the surface of the angle measuring disc 6, and the section of the annular groove 19 is of a T-shaped structure.
The movable rod 2 below the angle measuring disc 6 is sleeved with a fixed block 8, one side of the fixed block 8 is rotatably connected with a mounting plate 9, one side of the mounting plate 9 is coaxially connected with a scale needle 11, the scale needle 11 is fixed on one side of the mounting plate 9, a second fixing screw 17 is installed on the surface of the scale needle 11 in a threaded mode, a second limiting block 18 is fixedly connected to the tail end of the second fixing screw 17, and the second limiting block 18 is placed inside an annular groove 19.
The top of the second fixing screw 17 is fixedly connected with a first rotating handle 20
The implementation mode is specifically as follows:
when using, fix the osteotome on mounting panel 9, then, rotate mounting panel 9, the osteotome rotates along with mounting panel 9, and mounting panel 9 and scale needle 11 coaxial coupling, thereby through watching the position of scale needle 11 on angle measurement dish 6, measure the turned angle of osteotome, because second fixing screw 17 threaded connection is on scale needle 11, through rotating first rotatory handle 20, make second fixing screw 17 rotate, and drive second stopper 18 and remove to scale needle 11 one side, make second stopper 18 top surface and ring channel 19 interior top surface offset, thereby fix a position scale needle 11 through second stopper 18 and second fixing screw 17, thereby realize carrying out the effect of fixing a position to the osteotome.
A plurality of fixing needles 5 are fixed on one side of the fixing rod 1, a transverse fixing rod 13 extends and is fixed on one side, close to the fixing needles 5, of the top of the movable rod 2, and a movable needle 22 is installed inside the transverse fixing rod 13 through a limiting mechanism.
Stop gear has seted up rectangular groove 15 including seting up the rectangle through-hole 14 on horizontal dead lever 13 top surface on the horizontal dead lever 13 of rectangle through-hole 14 both sides, and two rectangular groove 15 inside are inserted jointly and are equipped with first stopper 16, and movable needle 22 has been placed to rectangle through-hole 14 inside, and movable needle 22 bottom runs through rectangle through-hole 14 and extends away, and movable needle 22 top runs through first stopper 16 and threaded connection has the rotatory handle 21 of second.
The edge of one side of the angle measuring disc 6 is fixedly connected with a protection strip 7, and the thickness of the protection strip 7 is larger than that of the scale needle 11.
The bottom of the two sides of the fixed rod 1 is fixedly connected with a plurality of fixing rings 3.
The implementation mode is specifically as follows:
when using, through passing solid fixed ring 3 with the connecting band, fix dead lever 1 on patient's health, then, insert fixed needle 5 on the shin bone surface, fix a position dead lever 1 is vertical, make dead lever 1 and shin bone keep parallel, finally, adjust the position of activity needle 22, make activity needle 22 insert the shin bone tip, rotate second rotation handle 21 again, fix activity needle 22 on horizontal dead lever 13 through second rotation handle 21, fix activity needle 22, thereby fix horizontal dead lever 13 at the shin bone tip, be convenient for operate the osteotomy device.
The utility model discloses the theory of operation:
when the tibia fixing device is used, the length of the movable rod 2 can be adjusted according to different tibia lengths, after the total length of the movable rod 2 and the fixing rod 1 reaches a specified length, the first fixing screw rod 4 is rotated to enable the first fixing screw rod 4 to abut against the movable rod 2, and therefore the movable rod 2 is fixed; the connecting band penetrates through the fixing ring 3, the fixing rod 1 is fixed on the body of a patient, then the fixing needle 5 is inserted into the surface of a tibia, the fixing rod 1 is vertically positioned, the fixing rod 1 is kept parallel to the tibia, finally, the position of the movable needle 22 is adjusted, the movable needle 22 is inserted into the end portion of the tibia, then the second rotating handle 21 is rotated, the movable needle 22 is fixed on the transverse fixing rod 13 through the second rotating handle 21, the movable needle 22 is fixed, and therefore the transverse fixing rod 13 is fixed at the end portion of the tibia, and the osteotome device is convenient to operate; through passing the connecting band solid fixed ring 3, fix dead lever 1 on patient's health, then, insert the shin bone surface with fixed needle 5, fix a position dead lever 1 is vertical, make dead lever 1 and shin bone keep parallel, finally, adjust the position of activity needle 22, make activity needle 22 insert the shin bone tip, rotate the rotatory handle 21 of second again, fix activity needle 22 on horizontal dead lever 13 through the rotatory handle 21 of second, fix activity needle 22, thereby fix horizontal dead lever 13 at the shin bone tip, be convenient for operate the osteotomy device.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.
Claims (6)
1. The utility model provides a positioner of total knee replacement shin bone osteotome ware, includes ascending dead lever of opening (1), its characterized in that: the movable rod (2) is inserted into the fixed rod (1), the movable rod (2) is fixed inside the fixed rod (1) through a fixing mechanism, one side of the movable rod (2) is fixedly connected with an angle measuring disc (6), a scale bar (12) is arranged on the angle measuring disc (6), an annular groove (19) is formed in the surface of the angle measuring disc (6), and the section of the annular groove (19) is of a T-shaped structure;
a fixed block (8) is fixedly sleeved on the movable rod (2) below the angle measuring disc (6), one side of the fixed block (8) is rotatably connected with a mounting plate (9), one side of the mounting plate (9) is coaxially connected with a scale needle (11), the scale needle (11) is fixed on one side of the mounting plate (9), a second fixing screw (17) is installed on the surface of the scale needle (11) in a threaded mode, a second limiting block (18) is fixedly connected to the tail end of the second fixing screw (17), and the second limiting block (18) is placed inside the annular groove (19);
dead lever (1) one side is fixed with a plurality of fixed needles (5), movable rod (2) top is close to fixed needle (5) one side extension and is fixed with horizontal dead lever (13), activity needle (22) are installed through stop gear to horizontal dead lever (13) inside.
2. The positioning device for a total knee replacement tibial osteotome of claim 1, wherein: the fixing mechanism comprises a first fixing screw rod (4) which is in threaded connection with one side of the fixing rod (1), and one end of the first fixing screw rod (4) is abutted to the movable rod (2).
3. The positioning device for a total knee replacement tibial osteotome of claim 1, wherein: stop gear is including offering rectangle through-hole (14) on horizontal dead lever (13) top surface, rectangular channel (15), two have been seted up on horizontal dead lever (13) of rectangle through-hole (14) both sides rectangular channel (15) inside is inserted jointly and is equipped with first stopper (16), activity needle (22) have been placed to rectangle through-hole (14) inside, activity needle (22) bottom is run through rectangle through-hole (14) and is extended away, activity needle (22) top is run through first stopper (16) and threaded connection has the rotatory handle of second (21).
4. The positioning device for a total knee replacement tibial osteotome of claim 1, wherein: the angle measurement device is characterized in that a protection strip (7) is fixedly connected to the edge of one side of the angle measurement disc (6), and the thickness of the protection strip (7) is larger than that of the scale needle (11).
5. The positioning device for a total knee replacement tibial osteotome of claim 1, wherein: the bottom of the two sides of the fixed rod (1) is fixedly connected with a plurality of fixing rings (3).
6. The positioning device for a total knee replacement tibial osteotome of claim 1, wherein: the top of the second fixing screw rod (17) is fixedly connected with a first rotating handle (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120200407.4U CN214907666U (en) | 2021-01-25 | 2021-01-25 | Positioning device of total knee joint replacement tibia osteotomy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120200407.4U CN214907666U (en) | 2021-01-25 | 2021-01-25 | Positioning device of total knee joint replacement tibia osteotomy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907666U true CN214907666U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120200407.4U Active CN214907666U (en) | 2021-01-25 | 2021-01-25 | Positioning device of total knee joint replacement tibia osteotomy device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214907666U (en) |
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2021
- 2021-01-25 CN CN202120200407.4U patent/CN214907666U/en active Active
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