CN211934260U - Intramedullary nail screw aiming positioner - Google Patents
Intramedullary nail screw aiming positioner Download PDFInfo
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- CN211934260U CN211934260U CN202020153714.7U CN202020153714U CN211934260U CN 211934260 U CN211934260 U CN 211934260U CN 202020153714 U CN202020153714 U CN 202020153714U CN 211934260 U CN211934260 U CN 211934260U
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Abstract
The utility model discloses an intramedullary nail screw aiming positioner, which comprises an intramedullary nail detachably connected with one end of a handle, the other end of the handle is fixedly connected with a cross rod, the cross rod is connected with a longitudinal rod parallel with the intramedullary nail, the longitudinal rod and the intramedullary nail are positioned in the same horizontal plane, the longitudinal rod is fixedly connected with a horizontal moving mechanism, an angle calibrating mechanism is slidably connected on the horizontal moving mechanism along the length direction of the longitudinal rod, a screw hole device is fixedly connected on the angle calibrating mechanism, the angle calibrating mechanism enables the screw hole device to rotate, so as to form the angle adjustment of the screw hole device, the screw hole device is provided with a screw hole, the tension screw sleeve passes through the screw hole and connects the fixed screw thread in the screw hole of the intramedullary nail, the utility model can be applied to intramedullary nails with different thread hole distances and different angles of thread holes, and is widely applicable to various intramedullary nail manufacturers. Is applicable to the technical field of medical appliances.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, specifically speaking relates to an intramedullary nail screw aims locator.
Background
The distal or proximal femur fracture is a very common fracture, the intramedullary nail with locking screws can be used for treating the fracture, the intramedullary nail is inserted into a bone cavity, the locking holes on the intramedullary nail are positioned by the intramedullary nail aiming positioner, and bone tissues are fixedly connected with the intramedullary nail by the locking screws, when the femoral shaft intramedullary nail is placed, the positions of the locking holes can be determined by repeated perspective without related navigation in adjacent locking holes on the intramedullary nail under the assistance of perspective, aiming at the problems that the steps for placing the intramedullary nail are complex in the prior art, the nail position needs to be accurately found under the irradiation of X rays, the radiation quantity is large, the screw hole distance is fixed and cannot be adjusted and the angle is not well adjusted in the prior intramedullary nail aiming positioner, the screw hole distance on each intramedullary nail of manufacturers is not fixed and is not changed, and aiming positioners of various types are needed for corresponding, thus, the operation difficulty becomes much larger, and complicated steps are still inevitable when the device is used.
The utility model discloses the content
The utility model provides an intramedullary nail screw aiming positioner, which solves the problems that the distance of a screw hole is fixed and can not be adjusted and the angle is not well adjusted in the aiming device in the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
an intramedullary nail screw aiming locator, the key points are as follows: including dismantling the intramedullary nail of connecting in handle one end, the other end of handle has linked firmly a horizontal pole, be connected with on the horizontal pole with the parallel longitudinal rod of intramedullary nail, longitudinal rod and intramedullary nail are in same horizontal plane, the horizontal migration mechanism has been linked firmly on the longitudinal rod, in horizontal migration mechanism is last and follows the length direction sliding connection of longitudinal rod has angle calibration mechanism, angle calibration mechanism has linked firmly the drift ware, angle calibration mechanism makes the drift ware rotate to constitute the regulation to drift ware angle, the screw hole has been seted up to the drift ware, and the lag screw sleeve passes the screw hole, and with set screw threaded connection in the screw hole of intramedullary nail, in order to constitute the fixed to the intramedullary nail.
Furthermore, the cross bar is fixedly connected with an angle adjusting mechanism, and the angle adjusting mechanism enables the longitudinal bar to rotate towards the cross bar so as to form the adjustment of the angle between the longitudinal bar and the cross bar.
Further, angle adjustment mechanism includes the arc regulating plate, the one end of arc regulating plate with the horizontal pole links firmly, the other end with vertical pole swing joint, it has the arc wall to run through on the arc regulating plate, the one end of vertical pole and arc regulating plate contact is formed with the screw thread post, the screw thread post is worn through the arc wall to along the axial slip of arc wall, to constituting the regulation to angle between vertical pole and the horizontal pole, a lock nut and screw thread post threaded connection, in order to constitute fixed to arc regulating plate and vertical pole.
Furthermore, an extension rod extending towards the intramedullary nail is fixedly connected to the horizontal moving mechanism, a sleeve capable of sliding along the length direction of the extension rod is sleeved on the extension rod, and a hole screwer is fixedly connected to the sleeve.
Furthermore, a plurality of first through holes are uniformly formed in the extension rod along the length direction of the extension rod, a second through hole is formed in the sleeve, the first through hole is aligned with the second through hole, and a locking bolt penetrates through the first through hole and the second through hole and is locked through a limiting nut so as to limit the sliding of the sleeve.
Furthermore, the angle calibration mechanism comprises a connecting rod fixed on the horizontal movement mechanism, a ball socket is fixedly connected onto the connecting rod, a ball head is matched in the ball socket, an extending rod extending along the length direction of the cross rod is formed at one end, far away from the ball socket, of the ball head, a hole screwer is fixedly connected at one end, far away from the ball head, of the extending rod, and the ball head rotates in the ball socket to form adjustment of the rotation angle of the hole screwer.
Furthermore, the connection mode of the ball socket and the ball head is GOPRO ball head rotation connection.
Further, horizontal migration mechanism is including forming the slide rail of the one end of keeping away from the horizontal pole at longitudinal rod, sliding connection has the slider on the slide rail, angle calibration mechanism link firmly in on the slider.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the utility model comprises an intramedullary nail which is detachably connected with one end of a handle, the other end of the handle is fixedly connected with a cross rod, the cross rod is connected with a longitudinal rod which is parallel with the intramedullary nail, the longitudinal rod and the intramedullary nail are in the same horizontal plane, the longitudinal rod is fixedly connected with a horizontal moving mechanism, the horizontal moving mechanism is slidably connected with an angle calibrating mechanism along the length direction of the longitudinal rod, the angle calibrating mechanism is fixedly connected with a screw hole device, the angle calibrating mechanism enables the screw hole device to rotate to form the adjustment of the angle of the screw hole device, the screw hole device is provided with a screw hole, a tension screw sleeve passes through the screw hole and is connected with the screw hole of the intramedullary nail in a threaded way to form the fixation of the intramedullary nail, the intramedullary nail is inserted into a bone cavity, the horizontal position of the screw hole device is adjusted by the horizontal moving, thereby aligning the screw hole with the threaded hole, passing the tension screw sleeve through the screw hole, and threadedly connecting the fixing screw in the threaded hole, so that the fixing screw locks the intramedullary nail, thereby fixing the backbone; by arranging the horizontal moving mechanism and the angle calibrating mechanism, the utility model can be suitable for intramedullary nails with threaded holes of different thread pitch and different angles, and is widely suitable for various intramedullary nail manufacturers; the damage of X-ray fluoroscopy can be reduced, and the total radiation dose received by an operator and a patient is reduced; it also reduces the total time of the operation and increases the safety of the operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is an enlarged view at B in FIG. 2;
fig. 4 is a schematic structural diagram of another angle according to the embodiment of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
fig. 6 is an exploded view of the slider, the extension bar and the sleeve according to the embodiment of the present invention.
Labeling components: 1-handle, 2-cross rod, 3-intramedullary nail, 4-longitudinal rod, 5-screwhole device, 6-tension screw sleeve, 7-threaded hole, 8-arc adjusting plate, 9-arc groove, 10-threaded column, 11-locking nut, 12-extension rod, 13-sleeve, 14-second through hole, 15-first through hole, 16-locking bolt, 17-limiting nut, 18-connecting rod, 19-ball socket, 20-ball head, 21-extension rod, 22-sliding rail and 23-sliding block.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Embodiment a screw aiming locator for intramedullary nail
The embodiment discloses an intramedullary nail screw aiming positioner, which comprises an intramedullary nail 3 detachably connected with one end of a handle 1, the other end of the handle 1 is fixedly connected with a cross rod 2, the cross rod 2 is connected with a longitudinal rod 4 parallel to the intramedullary nail 3, the longitudinal rod 4 and the intramedullary nail 3 are in the same horizontal plane, the longitudinal rod 4 is fixedly connected with a horizontal moving mechanism, an angle calibrating mechanism is connected on the horizontal moving mechanism in a sliding way along the length direction of the longitudinal rod 4, the angle calibrating mechanism is fixedly connected with a screw hole device 5, the angle calibrating mechanism enables the screw hole device 5 to rotate so as to form the angle adjustment of the screw hole device 5, the screw hole device 5 is provided with a screw hole, a tension screw sleeve 6 penetrates through the screw hole and connects a fixing screw in a threaded hole 7 of the intramedullary nail 3 so as to form the fixation of the intramedullary nail 3, and the intramedullary nail 3, the horizontal position of the screw hole device 5 is adjusted through the horizontal moving mechanism, the angle of the screw hole device 5 is adjusted through the angle calibrating mechanism, so that the screw hole is aligned with the threaded hole 7, the tension screw sleeve 6 penetrates through the screw hole, and the fixing screw is in threaded connection with the threaded hole 7, so that the intramedullary nail 3 is locked by the fixing screw, and the backbone is fixed; by arranging the horizontal moving mechanism and the angle calibrating mechanism, the utility model can be suitable for intramedullary nails with threaded holes 7 with different thread hole distances and different angles, and is widely suitable for various intramedullary nail 3 manufacturers; the damage of X-ray fluoroscopy can be reduced, and the total radiation dose received by an operator and a patient is reduced; it also reduces the total time of the operation and increases the safety of the operation.
Preferably, the cross bar 2 is fixedly connected with an angle adjusting mechanism, the angle adjusting mechanism enables the longitudinal bar 4 to rotate towards the cross bar 2, so as to adjust the angle between the longitudinal bar 4 and the cross bar 2, the specific structure of the angle adjusting mechanism is that the angle adjusting mechanism comprises an arc adjusting plate 8, one end of the arc adjusting plate 8 is fixedly connected onto the cross bar 2 through a bolt, the other end of the arc adjusting plate 8 is hinged onto the longitudinal bar 4 through a pin shaft, an arc groove 9 is formed in the arc adjusting plate 8 in a penetrating manner, a threaded column 10 is formed at one end of the longitudinal bar 4, which is in contact with the arc adjusting plate 8, the threaded column 10 penetrates through the arc groove 9 and slides along the circumferential direction, the angle between the longitudinal bar 4 and the cross bar 2 is adjusted, when the position to be adjusted is reached, a locking nut 11 is in threaded connection with the threaded column 10, so as to lock the arc adjusting plate 8 and the, the angle between the longitudinal rod 4 and the transverse rod 2 is adjusted by the arc-shaped adjusting plate 8, and the method is simple and reliable.
Preferably, the horizontal moving mechanism is fixedly connected with an extension rod 12, the extension rod 12 extends towards the intramedullary nail 3, a sleeve 13 is sleeved on the extension rod 12, the sleeve 13 can slide along the length direction of the extension rod 12, the screwhole device 5 is fixedly connected with the sleeve 13, the extension rod 12 and the sleeve 13 slide relatively, when the extension rod slides to a required position, the extension rod is locked through a limiting mechanism, the limiting mechanism has the specific structure that a plurality of first through holes 15 are uniformly formed in the extension rod 12 along the length direction of the extension rod, a second through hole 14 is formed in the sleeve 13, one of the first through holes 15 aligns with the second through hole 14, and a locking bolt 16 penetrates through the first through hole 15 and the second through hole 14 and is locked through a limiting nut 17.
The specific structure of the angle calibration mechanism comprises a connecting rod 18 fixed on a horizontal movement mechanism, a ball socket 19 is fixedly connected to the connecting rod 18, a ball head 20 is matched in the ball socket 19, an extending rod 21 extending along the length direction of a cross rod 2 is formed at one end, far away from the ball socket 19, of the ball head 20, one end, far away from the ball head 20, of the extending rod 21 is fixedly connected with a hole screwing device 5, the ball head 20 rotates in the ball socket 19, so that the adjustment of the rotation angle of the hole screwing device 5 is formed, the ball socket 19 and the ball head 20 are in the prior art, and the connection mode of the ball socket 19 and the ball head 20.
The horizontal movement mechanism has the specific structure that the horizontal movement mechanism comprises a slide rail 22 and a slide block 23, the slide rail 22 is formed on the longitudinal rod 4 and is far away from one end of the transverse rod 2, the slide rail 22 is connected with the slide block 23 in a sliding mode, and the angle calibration mechanism is fixedly connected to the slide block 23.
The utility model discloses working process and principle:
firstly, assembling the intramedullary nail 3 and the handle 1, holding the handle 1 by hand to insert the intramedullary nail 3 into a bone cavity, enabling the threaded column 10 to pass through the arc-shaped groove 9 and slide along the circumferential direction of the arc-shaped groove 9, adjusting the angle between the longitudinal rod 4 and the cross rod 2, and connecting the locking nut 11 and the threaded column 10 in a threaded manner when a required position is reached, so that the arc-shaped adjusting plate 8 and the longitudinal rod 4 are locked, and the mutual movement between the arc-shaped adjusting plate 8 and the longitudinal rod 4 is limited; secondly, sliding the sliding block 23 to a proper position, sliding the extension rod 12 and the sleeve 13 relatively, aligning a first through hole 15 with a second through hole 14 when sliding to a required position, passing the locking bolt 16 through the first through hole 15 and the second through hole 14, and locking by the limiting nut 17; then, the ball head 20 rotates in the ball socket 19, so that the adjustment of the rotation angle of the screw hole device 5 is formed; finally, when the screw hole of the screw hole device 5 aims at the threaded hole 7 on the intramedullary nail 3, the tension screw sleeve 6 penetrates through the screw hole, one end of the tension screw sleeve 6, which is close to the intramedullary nail 3, is connected with a fixing screw, and the fixing screw is in threaded connection with the threaded hole 7, so that the intramedullary nail 3 is locked by the fixing screw, and the diaphysis is fixed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (8)
1. An intramedullary nail screw aiming locator is characterized in that: including dismantling the intramedullary nail of connecting in handle one end, the other end of handle has linked firmly a horizontal pole, be connected with on the horizontal pole with the parallel longitudinal rod of intramedullary nail, longitudinal rod and intramedullary nail are in same horizontal plane, the horizontal migration mechanism has been linked firmly on the longitudinal rod, in horizontal migration mechanism is last and follows the length direction sliding connection of longitudinal rod has angle calibration mechanism, angle calibration mechanism has linked firmly the drift ware, angle calibration mechanism makes the drift ware rotate to constitute the regulation to drift ware angle, the screw hole has been seted up to the drift ware, and the lag screw sleeve passes the screw hole, and with set screw threaded connection in the screw hole of intramedullary nail, in order to constitute the fixed to the intramedullary nail.
2. The intramedullary nail screw aiming locator of claim 1, wherein: the cross bar is fixedly connected with an angle adjusting mechanism, and the angle adjusting mechanism enables the longitudinal bar to rotate towards the cross bar so as to form the adjustment of the angle between the longitudinal bar and the cross bar.
3. An intramedullary nail screw aiming locator as recited in claim 2, wherein: angle adjustment mechanism includes the arc regulating plate, the one end of arc regulating plate with the horizontal pole links firmly, the other end with vertical pole swing joint, it has the arc wall to run through on the arc regulating plate, the one end of vertical pole and arc regulating plate contact is formed with the screw thread post, the screw thread post is worn through the arc wall to along the circumferential direction slip of arc wall, to constituting the regulation to angle between vertical pole and the horizontal pole, a lock nut and screw thread post threaded connection, in order to constitute fixed to arc regulating plate and vertical pole.
4. The intramedullary nail screw aiming locator of claim 1, wherein: the horizontal moving mechanism is fixedly connected with an extension rod extending towards the intramedullary nail, the extension rod is sleeved with a sleeve capable of sliding along the length direction of the extension rod, and the sleeve is fixedly connected with a screw hole device.
5. An intramedullary nail screw aiming locator according to claim 4 wherein: a plurality of first through holes are uniformly formed in the extension rod along the length direction of the extension rod, a second through hole is formed in the sleeve, the first through holes are aligned with the second through holes, and a locking bolt penetrates through the first through holes and the second through holes and is locked through a limiting nut to limit the sliding of the sleeve.
6. The intramedullary nail screw aiming locator of claim 1, wherein: the angle calibration mechanism comprises a connecting rod fixed on the horizontal movement mechanism, a ball socket is fixedly connected onto the connecting rod, a ball head is matched in the ball socket, an extending rod extending along the length direction of the cross rod is formed at one end, far away from the ball socket, of the ball head, a hole screwer is fixedly connected at one end, far away from the ball head, of the extending rod, and the ball head rotates in the ball socket to form adjustment of the rotation angle of the hole screwer.
7. An intramedullary nail screw aiming locator according to claim 6 wherein: the ball socket and the ball head are connected in a GOPRO ball head rotating connection mode.
8. The intramedullary nail screw aiming locator of claim 1, wherein: the horizontal migration mechanism is including forming the slide rail of the one end of keeping away from the horizontal pole in longitudinal rod, sliding connection has the slider on the slide rail, angle calibration mechanism link firmly in on the slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020153714.7U CN211934260U (en) | 2020-02-05 | 2020-02-05 | Intramedullary nail screw aiming positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020153714.7U CN211934260U (en) | 2020-02-05 | 2020-02-05 | Intramedullary nail screw aiming positioner |
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| CN211934260U true CN211934260U (en) | 2020-11-17 |
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| CN202020153714.7U Active CN211934260U (en) | 2020-02-05 | 2020-02-05 | Intramedullary nail screw aiming positioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113940744A (en) * | 2021-10-22 | 2022-01-18 | 黄果 | Intramedullary nail and blocking nail aiming device |
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2020
- 2020-02-05 CN CN202020153714.7U patent/CN211934260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113940744A (en) * | 2021-10-22 | 2022-01-18 | 黄果 | Intramedullary nail and blocking nail aiming device |
| CN113940744B (en) * | 2021-10-22 | 2023-05-23 | 黄果 | Intramedullary nail and blocking nail aiming device |
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