CN214285068U - Rotatory auxiliary device that cuts of thighbone distal end - Google Patents
Rotatory auxiliary device that cuts of thighbone distal end Download PDFInfo
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- CN214285068U CN214285068U CN202021871343.2U CN202021871343U CN214285068U CN 214285068 U CN214285068 U CN 214285068U CN 202021871343 U CN202021871343 U CN 202021871343U CN 214285068 U CN214285068 U CN 214285068U
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Abstract
The utility model discloses a femur far-end rotation osteotomy auxiliary device, which comprises a positioning guider, a protractor and a pointer device, wherein the positioning guider comprises a positioning guide seat, and the positioning guide seat is sequentially provided with a first guide hole, a second guide hole, a third guide hole and a fourth guide hole from the near end of the positioning guide seat to the far end; the angle indicator comprises an angle scale and a positioning seat, the positioning seat is provided with a first positioning hole and a second positioning hole which are matched with the first guide hole and the second guide hole, and the angle scale is detachably connected with the far end of the positioning seat; the pointer device comprises a rotating seat, a pointer used for indicating the angle on the angle scale is arranged at the near end of the rotating seat, and a third positioning hole and a fourth positioning hole which are matched with the third guide hole and the second guide hole are arranged on the rotating seat. The utility model discloses can instruct the rotatory rotation angle of cutting the bone back distal end of thighbone distal end accurately, supplementary doctor accomplishes the operation fast accurately.
Description
Technical Field
The utility model relates to an auxiliary assembly of rotatory osteotomy of thighbone, concretely relates to rotatory osteotomy auxiliary device of thighbone distal end.
Background
The femur rotary osteotomy can correct severe femoral neck anteversion deformity. The existing femur rotation osteotomy solves the etiology by cutting the femur at the far end, fixing the femur in the steel plate after rotation and correcting the overlarge femur anteversion angle. However, in the conventional femoral rotational osteotomy, after the distal femur is resected, the rotational angle is determined by the surgeon visually or by photographing or the like. Although the method is simple and easy to implement, the rotation angle value is difficult to measure accurately, so that the operation effect is poor, and the operation needs to be performed again seriously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that can't indicate rotation angle accurately among the above-mentioned prior art in the rotatory osteotomy of thighbone distal end, provide a rotatory auxiliary device that cuts of thighbone distal end, the device can indicate the rotation angle of cutting the bone back distal end accurately, and supplementary doctor accurately accomplishes the operation fast.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a femoral distal rotation osteotomy aid, comprising:
positioning the guider: the lower limb force line positioning mark is used for providing a lower limb force line positioning mark for osteotomy and comprises a positioning guide seat, wherein a first guide hole, a second guide hole, a third guide hole and a fourth guide hole are sequentially arranged on the positioning guide seat from the near end to the far end of the positioning guide seat, the first guide hole, the second guide hole, the third guide hole and the fourth guide hole are positioned on the same straight line, and the first guide hole, the second guide hole, the third guide hole and the fourth guide hole are used for inserting a positioning needle;
an angle indicator: the positioning seat is provided with a first positioning hole and a second positioning hole which are matched with the first guide hole and the second guide hole, and the angle scale is detachably connected with the far end of the positioning seat;
a needle indicator: the angle dial indicator comprises a rotating seat, a pointer used for indicating an angle on the angle dial is arranged at the near end of the rotating seat, and a third positioning hole and a fourth positioning hole which are matched with the third guide hole and the fourth guide hole are arranged on the rotating seat.
In the art, "proximal" refers to the end proximal to the human heart and "distal" refers to the end distal to the human heart. The positioning guider of the utility model can provide a lower limb force line positioning mark for a rotary osteotomy hand, the positioning guide seat is placed on the front of the lower end of the femur, and the first guide hole, the second guide hole, the third guide hole and the fourth guide hole are positioned on the lower limb force line, and then the kirschner wire is sequentially drilled into the first guide hole, the second guide hole, the third guide hole and the fourth guide hole by an electric drill to be positioned; then taking out the positioning guide seat, respectively aligning and inserting the first positioning hole and the second positioning hole of the positioning seat into the Kirschner wire of the first guide hole and the second guide hole, and sleeving the positioning seat so as to fix the position of the positioning seat, and then connecting the angle scale to the far end of the positioning seat; aligning and inserting the third positioning hole and the fourth positioning hole of the rotating seat into the kirschner wires of the third guide hole and the fourth guide hole, and sleeving the kirschner wires to fix the position of the rotating seat; truncating the distal femoral shaft between the second guide hole and the third guide hole by using an oscillating saw; and finally, according to the correction angle designed before the operation, the distal end of the femur is rotated outwards to the angle corresponding to the correction angle on the pointer alignment angle scale, and a locking steel plate is arranged on the outer side of the distal end of the femur to fix the distal end of the femur after the angle is confirmed to be correct.
Furthermore, a first mounting hole for fixing a first guide rod is formed in the end part of the near end of the positioning guide seat; and/or the distal end of the positioning guide seat is provided with a second mounting hole for fixing a second guide rod.
Furthermore, a first magnetic part is arranged at the far end of the positioning seat, a second magnetic part is arranged on the angle scale, and the first magnetic part and the second magnetic part are attracted magnetically.
Furthermore, the number of the first magnetic parts is at least two, and the number of the second magnetic parts is at least two.
Furthermore, a clamping groove is formed in the far end of the positioning seat, and a buckle matched with the clamping groove is arranged on the angle scale.
Furthermore, a third mounting hole for fixing the first guide rod is formed in the near end of the positioning seat, the diameter of the third mounting hole is 3mm, and the depth of the third mounting hole reaches 3 cm; and a fourth mounting hole for fixing the second guide rod is formed in the far end of the rotating seat, the diameter of the fourth mounting hole is 3mm, and the depth of the fourth mounting hole reaches 3 cm.
Furthermore, the angle scale comprises an arc-shaped panel, and angle scales are respectively engraved on the front surface and the back surface of the arc-shaped panel.
Further, the aperture of the first guide hole is larger than that of the second guide hole, and the aperture of the fourth guide hole is larger than that of the third guide hole.
Further, the aperture of the first guide hole is equal to the aperture of the fourth guide hole, and the aperture of the second guide hole is equal to the aperture of the third guide hole.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a rotatory auxiliary device that cuts of thighbone distal end can instruct the rotatory rotation angle of cutting the bone back distal end of thighbone distal end accurately, and supplementary doctor accurately accomplishes the operation fast.
Drawings
Fig. 1 is a schematic structural view of a distal femur rotation osteotomy aid according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a positioning guide according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a corner indicator according to an embodiment of the present invention;
fig. 4 is a schematic view of another angle of the angle indicator according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a needle indicator according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a use state of the angle indicator and the pointer according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description and claims of this application, "proximal" refers to the end of the device that is closer to the location of the human heart when in use, and "distal" refers to the end of the device that is further from the location of the human heart when in use.
Referring to fig. 1, fig. 1 shows a structure of a distal femur rotation osteotomy assisting device according to an embodiment of the present invention. The distal femur rotation osteotomy auxiliary device comprises a positioning guide 10, a protractor 20 and a pointer 30. The positioning guide 10, the angle indicator 20 and the pointer 30 are separated structures.
The positioning guide 10 is used for providing a lower limb force line positioning mark for osteotomy, and comprises a positioning guide seat 10a, wherein a first guide hole 11, a second guide hole 12, a third guide hole 13 and a fourth guide hole 14 are sequentially arranged on the positioning guide seat 10a from the near end of the positioning guide seat 10a to the far end. The first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 are located on the same straight line, and the first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 are used for inserting a positioning needle.
The angle indicator 20 comprises an angle scale 23 and a positioning seat 20 a. The positioning seat 20a is provided with a first positioning hole 21 and a second positioning hole 22 which are matched with the first guide hole 11 and the second guide hole 12. The angle scale 23 is detachably connected with the far end of the positioning seat 20 a.
The pointer 30 comprises a rotary seat 30a, and a pointer 31 for indicating the angle on the angle scale is arranged at the proximal end of the rotary seat 30 a. The rotary base 30a is provided with a third positioning hole 33 and a fourth positioning hole 34 which are matched with the third guide hole 13 and the fourth guide hole 14.
The positioning guider 10 of the utility model can provide a lower limb force line positioning mark for the rotary osteotomy hand, the positioning guide seat 10a is placed in front of the lower segment of the femur, and the first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 are positioned on the lower limb force line, and then the Kirschner wire is inserted into the first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 for positioning; in the operation, the distal femoral shaft is cut off between the second guide hole 12 and the third guide hole 13, and then the positioning guide seat 10a is taken out; then, aligning and inserting the first positioning hole 21 and the second positioning hole 22 of the positioning seat 20a into the kirschner wires of the first guiding hole 11 and the second guiding hole 12, respectively, and sleeving the kirschner wires in order to fix the position of the positioning seat 20a, and then connecting the angle scale 23 to the far end of the positioning seat 20 a; finally, the third positioning hole 33 and the fourth positioning hole 34 of the rotary base 30a are aligned with the kirschner wires inserted into the third guide hole 13 and the fourth guide hole 14 and are sleeved, so that the position of the rotary base 30a is fixed, the distal end of the femur is rotated to the angle corresponding to the correction angle on the diagonal circle of the pointer 31 according to the correction angle designed before the operation, and the locking steel plate is arranged on the outer side of the femur to fix the bone end after the angle is confirmed to be correct.
In a possible embodiment, in order to allow the positioning guide 10a to accurately identify the lower limb force line, the first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 are accurately positioned on the lower limb force line, and a first mounting hole (not shown) is provided at the proximal end of the positioning guide 10 a. The first mounting hole can be used for embedding the first guide rod, and after the first guide rod is embedded, the position of the first guide rod is placed on the lower limb force line, so that the first guide hole 11, the second guide hole 12, the third guide hole 13 and the fourth guide hole 14 are accurately placed on the position of the lower limb force line.
In a possible embodiment, a second mounting hole 15a may be further provided at the distal end of the positioning guide seat 10a, and the second mounting hole 15a is used for fixing a second guide rod, thereby further improving the accurate identification of the lower limb force line by the positioning guide seat 10 a.
The detachable connection mode of the angle scale 23 and the positioning seat 20a may be a magnetic connection mode. The method comprises the following steps: the far end of the positioning seat is provided with a first magnetic part (not shown), the angle scale is provided with 23 a second magnetic part (not shown), and the first magnetic part and the second magnetic part are attracted magnetically.
Further, in order to firmly fix the angle scale 23 on the distal end portion of the positioning seat 20a, the number of the first magnetic members is at least two, the number of the second magnetic members is at least two, and the connection between the angle scale 23 and the positioning seat 20a has at least two positions, so that the angle scale is stable, and the angle scale cannot shake to affect the accuracy of angle indication.
The angle scale 23 and the positioning seat 20a can be detachably connected in a clamping manner. The method comprises the following steps: the far end of the positioning seat is provided with a clamping groove (not shown), and the angle scale is provided with a buckle (not shown) matched with the clamping groove.
In a possible embodiment, in order to make the fixing position of the positioning seat 20a and the fixing position of the rotating seat 30a more accurate, the proximal end of the positioning seat 20a is provided with a third mounting hole 24 for fixing the first guiding rod, and the distal end of the rotating seat 30a is provided with a fourth mounting hole 32 for fixing the second guiding rod.
Further, the angle scale 23 comprises an arc-shaped panel, the front and the back of the arc-shaped panel are respectively engraved with angle scales, the angle scale in the middle of the arc-shaped panel is 0 degree, and the angle scales gradually increase from the middle to the angle scales on the two sides. The front and back of the arcuate panel are respectively graduated in angle so that angle 23 can be used for the left leg and right leg femoral distal rotational osteotomies.
Further, the diameter of the first guide hole 11 is larger than that of the second guide hole 12, and the diameter of the fourth guide hole 14 is larger than that of the third guide hole 13.
Further, the first guide hole 11 and the fourth guide hole 14 have the same diameter, and the second guide hole 12 and the third guide hole 13 have the same diameter.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.
Claims (9)
1. A femoral distal rotation osteotomy aid, comprising:
positioning the guider: the lower limb force line positioning mark is used for providing a lower limb force line positioning mark for osteotomy and comprises a positioning guide seat, wherein a first guide hole, a second guide hole, a third guide hole and a fourth guide hole are sequentially arranged on the positioning guide seat from the near end to the far end of the positioning guide seat, the first guide hole, the second guide hole, the third guide hole and the fourth guide hole are positioned on the same straight line, and the first guide hole, the second guide hole, the third guide hole and the fourth guide hole are used for inserting a positioning needle;
an angle indicator: the positioning seat is provided with a first positioning hole and a second positioning hole which are matched with the first guide hole and the second guide hole, and the angle scale is detachably connected with the far end of the positioning seat;
a needle indicator: the angle dial indicator comprises a rotating seat, a pointer used for indicating an angle on the angle dial is arranged at the near end of the rotating seat, and a third positioning hole and a fourth positioning hole which are matched with the third guide hole and the fourth guide hole are arranged on the rotating seat.
2. The femoral distal rotational osteotomy aid of claim 1, wherein: a first mounting hole for fixing a first guide rod is formed in the end part of the near end of the positioning guide seat; and/or the distal end of the positioning guide seat is provided with a second mounting hole for fixing a second guide rod.
3. The femoral distal rotational osteotomy aid of claim 1, wherein: the far end of the positioning seat is provided with a first magnetic part, the angle scale is provided with a second magnetic part, and the first magnetic part and the second magnetic part are attracted magnetically.
4. The femoral distal rotational osteotomy aid of claim 3, wherein: the number of the first magnetic parts is at least two, and the number of the second magnetic parts is at least two.
5. The femoral distal rotational osteotomy aid of claim 1, wherein: the distal end of positioning seat is equipped with the draw-in groove, the angle scale be equipped with the buckle of draw-in groove matching.
6. The femoral distal rotational osteotomy aid of claim 1, wherein: the near-end of positioning seat is equipped with the third mounting hole that is used for fixed first guide bar, the distal end of roating seat is equipped with the fourth mounting hole that is used for fixed second guide bar.
7. The femoral distal rotational osteotomy aid of claim 1, wherein: the angle scale comprises an arc-shaped panel, and angle scales are respectively carved on the front surface and the back surface of the arc-shaped panel.
8. The femoral distal rotational osteotomy aid of claim 1, wherein: the aperture of the first guide hole is larger than that of the second guide hole, and the aperture of the fourth guide hole is larger than that of the third guide hole.
9. The femoral distal rotational osteotomy aid of claim 8, wherein: the aperture of the first guide hole is equal to the aperture of the fourth guide hole, and the aperture of the second guide hole is equal to the aperture of the third guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871343.2U CN214285068U (en) | 2020-08-31 | 2020-08-31 | Rotatory auxiliary device that cuts of thighbone distal end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871343.2U CN214285068U (en) | 2020-08-31 | 2020-08-31 | Rotatory auxiliary device that cuts of thighbone distal end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214285068U true CN214285068U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021871343.2U Active CN214285068U (en) | 2020-08-31 | 2020-08-31 | Rotatory auxiliary device that cuts of thighbone distal end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214285068U (en) |
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2020
- 2020-08-31 CN CN202021871343.2U patent/CN214285068U/en active Active
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