CN218305092U - II-type intramedullary nail guide rod for femoral inverted beating - Google Patents
II-type intramedullary nail guide rod for femoral inverted beating Download PDFInfo
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- CN218305092U CN218305092U CN202221763614.1U CN202221763614U CN218305092U CN 218305092 U CN218305092 U CN 218305092U CN 202221763614 U CN202221763614 U CN 202221763614U CN 218305092 U CN218305092 U CN 218305092U
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Abstract
The utility model belongs to the technical field of medical equipment, and discloses a II-type intramedullary nail guide rod for femoral inverted beating, which comprises a far-end guide rod, wherein the far-end guide rod is provided with a plurality of guide holes which are sequentially arranged along the length direction, one guide hole corresponding to the long lock hole at the far end of the intramedullary nail is a dynamic guide hole, the dynamic guide hole is of a waist-shaped long hole structure, a guide sleeve with a guide inner hole is arranged in the dynamic guide hole, and the guide sleeve can move along the length direction in the dynamic guide hole and is provided with at least two using positions; the distal guide rod is provided with a locking member at the dynamic guide hole for locking the guide sleeve in one of the use positions. The utility model discloses can make the dynamic guiding hole of distal end guide arm both can be convenient for the near-end one side location of the elongated lockhole of intramedullary nail, also can be convenient for the location of distal end one side to solve the distal end guide arm and can not carry out the problem of elongated lockhole distal end one side location, and convenient to detach, also easily operation.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to II type intramedullary nail guide arms are beaten to thighbone upside down.
Background
Referring to fig. 1, the conventional positioning of the femoral reverse type ii intramedullary nail usually requires a guide rod, which is connected to an intramedullary nail 4 via a handle 3, and is divided into a proximal guide rod 2 and a distal guide rod 1 connected to each other.
Be equipped with a plurality of guiding holes that are the round hole structure on the distal end guide arm, one of them is located the guiding hole of most distal end and the elongated lockhole of intramedullary nail distal end is corresponding, nevertheless make current distal end guide arm can only fix a position the near-end one side of the elongated lockhole of intramedullary nail distal end from this, can't fix a position distal end one side, and when the dynamic guiding hole location of distal end one side is carried out to needs, then can't fix a position through the distal end guide arm, can only through bare-handed locking after the perspective when the distal end one side location of elongated lockhole in the operation, nevertheless can increase like this and expose the length of time in the ray, make the operation risk increase.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a II type intramedullary nail guide arms are beaten to thighbone to the distal end guide arm of solving current intramedullary nail guide arm is not convenient for carry out the problem of fixing a position to distal end one side of the elongated lockhole of intramedullary nail distal end.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a femur reverse-beating type II intramedullary nail guide rod comprises a far-end guide rod, wherein the far-end guide rod is provided with a plurality of guide holes which are sequentially arranged along the length direction, one guide hole corresponding to a long lock hole at the far end of an intramedullary nail is a dynamic guide hole, the dynamic guide hole is in a waist-shaped long hole structure, a guide sleeve with a guide inner hole is arranged in the dynamic guide hole, and the guide sleeve can move along the length direction of the dynamic guide hole and is provided with at least two using positions;
the distal guide rod is provided with a locking member in the dynamic guide hole for locking the guide sleeve in one of the use positions.
In a possible implementation, the guide sleeve has two positions of use in the dynamic guide hole, and the locking member is provided on the inner wall of the dynamic guide hole between the two positions of use.
In a possible implementation, the length of the dynamic pilot hole is greater than the outer diameter of the guide sleeve but less than twice the outer diameter of the guide sleeve.
In a possible implementation manner, one end of the guide sleeve is provided with a flange extending towards the outside direction, the flange is positioned outside the dynamic guide hole, and the flange and the dynamic guide hole form a limiting relation.
In a possible implementation, the locking part comprises a locking piece having a pressing end and an adjusting end;
the inner wall of the dynamic guide hole between the two using positions is provided with a mounting hole, and the mounting hole is communicated with the dynamic guide hole; the locking component is in threaded connection with the mounting hole, and the abutting end of the locking component can extend into the dynamic guide hole to abut against the guide sleeve.
In a possible implementation manner, the abutting end is of a cambered surface structure, and the adjusting end is provided with an adjusting groove for connecting an adjusting tool.
In a possible implementation, the locking member is a wave ball screw.
In a possible implementation, the dynamic pilot hole is located at a distal end of the distal guide rod.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a thighbone falls to beat II type intramedullary nail guide arms, a guiding hole that corresponds through the elongated lockhole with the distal end pipe and intramedullary nail distal end sets up to waist shape slot hole structure, and uide bushing and locking part in the cooperation, can make the dynamic guiding hole of distal end guide arm both can be convenient for near-end one side location of the elongated lockhole of intramedullary nail, also can be convenient for the location of distal end one side, thereby solve the distal end guide arm and can not carry out the problem of elongated lockhole distal end one side location, and convenient to detach, also easily operation.
Drawings
FIG. 1 is a schematic view of a positioning structure required for positioning of a conventional inverted femoral II-type intramedullary nail;
FIG. 2 is a schematic structural view of a distal guide rod of a femoral inverted II intramedullary nail guide rod according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of the distal guide rod of a femoral inverted type II intramedullary nail guide in accordance with an embodiment of the present application;
fig. 4 is a cross-sectional view of a locking element of a femoral inverted type ii intramedullary nail guide of an embodiment of the present application.
In the figure: 1-a distal guide rod; 11-a pilot hole; 12-dynamic pilot holes; 13-a guide sleeve; 131-a flange; 132-a guide bore; 14-ball screw; 2-a proximal guide rod; 3-a handle; 4-intramedullary nail; 41-long lock hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The present invention will be further explained with reference to the drawings and specific embodiments.
Referring to fig. 1-4, an embodiment of the present application provides a femoral inverse-beating type ii intramedullary nail guide rod, including a distal guide rod 1, the distal guide rod 1 having a plurality of guide holes 11 sequentially arranged along a length direction, among the plurality of guide holes 11, one guide hole 11 corresponding to a long lock hole 41 at a distal end of an intramedullary nail 4 is a dynamic guide hole 12, the dynamic guide hole 12 is in a waist-shaped long hole structure, a guide sleeve 13 having a guide inner hole 132 is arranged in the dynamic guide hole 12, the guide sleeve 13 is movable in the dynamic guide hole 12 along the length direction thereof and has at least two use positions;
the guiding hole 11 corresponding to the elongated locking hole 41 at the distal end of the intramedullary nail 4 is a waist-shaped long hole structure, which is different from the existing round hole structure with a single use position, so that the guiding hole 11 can respectively correspond to the proximal end side and the distal end side of the elongated locking hole 41 of the intramedullary nail 4, and the guiding sleeve 13 which can move in the guiding hole can enable the guiding hole 132 to have the same function as other guiding holes 11, and the guiding sleeve 13 can move in the dynamic guiding hole 12, so that the guiding hole can have at least two use positions, and the proximal end side and the distal end side of the elongated locking hole 41 of the intramedullary nail 4 can be positioned.
In the femoral inverted II-type intramedullary nail guide rod of the embodiment of the present application, the distal guide rod 1 is provided with a locking component in the dynamic guide hole 12, and the locking component is used for locking the guide sleeve 13 in one of the use positions.
The locking means serve to lock the guide sleeve 13 in one of said positions of use, by means of which the guide sleeve 13 is positionally fixed, which in turn facilitates stable positioning of the stabilized intramedullary nail 4. In a specific embodiment, the number of the locking elements can be determined according to the number of the use positions, so that the locking is performed in one use position.
Through the technical scheme, the guide hole 11 corresponding to the long lock hole 41 at the far end of the far-end catheter and the intramedullary nail 4 is set to be in a waist-shaped long hole structure, and the dynamic guide hole 12 of the far-end guide rod 1 is matched with the guide sleeve 13 and the locking part in the guide hole, so that the near-end side of the long lock hole 41 of the intramedullary nail 4 can be conveniently positioned, the far-end side can also be conveniently positioned, the problem that the far-end guide rod 1 cannot be used for positioning the far-end side of the long lock hole 41 is solved, the disassembly is convenient, and the operation is easy.
In one embodiment, the guide sleeve 13 has two positions of use within the dynamic guide hole 12, and the locking member is disposed on the inner wall of the dynamic guide hole 12 between the two positions of use.
Wherein, two service positions respectively correspond to the distal end side and the proximal end side of the elongated lock hole 41 at the distal end of the intramedullary nail 4, and as the guide sleeve 13 is circular, the locking sleeve is arranged between the two service positions in order to lock the guide sleeve 13 at different service positions through one locking component, thereby realizing locking through the matching of the locking component and the guide sleeve 13.
Further, in order to make the locking member lock the guide sleeve 13 better, the length of the dynamic guide hole 12 is greater than the outer diameter of the guide sleeve 13 but less than twice the outer diameter of the guide sleeve 13. In this way, the locking element can be pressed against the outer wall of the guide sleeve 13 in different positions to achieve locking.
In a specific implementation process, one end of the guide sleeve 13 is provided with a flange 131 extending outward, the flange 131 is located outside the dynamic guide hole 12, and the flange 131 and the dynamic guide hole 12 form a limiting relationship. Through the setting of flange 131, can prevent droing or dropping of uide bushing 13 in the operation, structural design is more reasonable, and it is more convenient to use.
In an embodiment of the present application, the locking component comprises a locking member having an abutting end and an adjusting end; a mounting hole is formed in the inner wall of the dynamic guide hole 12 between the two using positions and is communicated with the dynamic guide hole 12; the locking component is in threaded connection with the mounting hole, and the abutting end of the locking component can extend into the dynamic guide hole 12 to abut against the guide sleeve 13.
The locking piece is in threaded connection with the mounting hole, so that the locking piece can be abutted or unscrewed when being rotated through the adjusting end of the locking piece, and the locking piece can be conveniently locked and detached; when the pressing end of the locking piece is pressed against and contacted with the outer wall of the guide sleeve 13 through rotation, the guide sleeve 13 can be locked.
Further, in order to make the locking end of the locking member all have the locking function when the guide sleeve 13 is located at different use positions, the abutting end is of an arc-shaped structure, and the adjusting end is provided with an adjusting groove for connecting an adjusting tool. The adjusting groove of the adjusting end is used for being connected with an adjusting tool, and the adjusting tool can enable the locking piece to rotate so as to achieve the adjusting effect.
Specifically, the locking member is a wave ball screw 14.
In the embodiment of the present application, the dynamic pilot hole 12 is located at the distal end of the distal guide rod 1.
In a specific implementation process, the locking piece can be installed in the installation hole through a threaded sleeve, and the threaded sleeve is fixedly connected with the installation hole.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a II type intramedullary nail guide rods are beaten to thighbone, includes distal end guide rod (1), and distal end guide rod (1) has a plurality of guiding holes (11) that set gradually along length direction, its characterized in that: one guide hole (11) corresponding to the long lock hole (41) at the far end of the intramedullary nail (4) is a dynamic guide hole (12) in the plurality of guide holes (11), the dynamic guide hole (12) is of a waist-shaped long hole structure, a guide sleeve (13) with a guide inner hole (132) is arranged in the dynamic guide hole (12), and the guide sleeve (13) can move in the dynamic guide hole (12) along the length direction of the dynamic guide hole and has at least two using positions;
the distal guide rod (1) is provided with a locking means in the dynamic guide bore (12) for locking the guide sleeve (13) in one of the use positions.
2. The femoral resection type ii intramedullary nail guide rod of claim 1, wherein: the guide sleeve (13) has two using positions in the dynamic guide hole (12), and the locking part is arranged on the inner wall of the dynamic guide hole (12) between the two using positions.
3. The femoral resection type ii intramedullary nail guide rod of claim 2, wherein: the length of the dynamic guide hole (12) is larger than the outer diameter of the guide sleeve (13) but smaller than twice the outer diameter of the guide sleeve (13).
4. The femoral resection type ii intramedullary nail guide rod of claim 3, wherein: one end of the guide sleeve (13) is provided with a flange (131) extending towards the outer side direction, the flange (131) is positioned outside the dynamic guide hole (12), and the flange (131) and the dynamic guide hole (12) form a limiting relation.
5. The femoral reverse II intramedullary nail guide rod according to any one of claims 2 to 4, wherein: the locking part comprises a locking piece, and the locking piece is provided with an abutting end and an adjusting end;
the inner wall of the dynamic guide hole (12) between the two using positions is provided with a mounting hole, and the mounting hole is communicated with the dynamic guide hole (12); the locking component is in threaded connection with the mounting hole, and the abutting end of the locking component can extend into the dynamic guide hole (12) to abut against the guide sleeve (13).
6. The femoral resection type II intramedullary nail guide rod of claim 5, wherein: the pressing end is of a cambered surface structure, and the adjusting end is provided with an adjusting groove for connecting an adjusting tool.
7. The femoral reverse II-type intramedullary nail guide rod of claim 6, wherein: the locking piece is a wave ball screw (14).
8. The femoral reverse II-type intramedullary nail guide rod of claim 1, wherein: the dynamic guide hole (12) is positioned at the far end of the far-end guide rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763614.1U CN218305092U (en) | 2022-07-06 | 2022-07-06 | II-type intramedullary nail guide rod for femoral inverted beating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763614.1U CN218305092U (en) | 2022-07-06 | 2022-07-06 | II-type intramedullary nail guide rod for femoral inverted beating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218305092U true CN218305092U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221763614.1U Active CN218305092U (en) | 2022-07-06 | 2022-07-06 | II-type intramedullary nail guide rod for femoral inverted beating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218305092U (en) |
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2022
- 2022-07-06 CN CN202221763614.1U patent/CN218305092U/en active Active
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