CN218943487U

CN218943487U - Bone needle bending tool

Info

Publication number: CN218943487U
Application number: CN202320727891.5U
Authority: CN
Inventors: 张泽浩; 张元民; 王亚松; 张帅
Original assignee: JINING MEDICAL UNIVERSITY; Beijing AK Medical Co Ltd
Current assignee: JINING MEDICAL UNIVERSITY; Beijing AK Medical Co Ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-05-02
Anticipated expiration: 2033-04-06

Abstract

The utility model provides a bone needle bending tool, which comprises: the main body comprises a first connecting part and a second connecting part, the axes of which are parallel to each other, and the first connecting part and the second connecting part are respectively arranged at two ends of the main body; the adjusting arm is provided with a third connecting part, is provided with a fastening bolt and a fastening nut, and is rotatably hinged with the first connecting part; the bending arm comprises a fourth connecting part and a fifth connecting part, the axes of the fourth connecting part and the fifth connecting part are mutually perpendicular, and the fourth connecting part is rotatably hinged with the second connecting part; the telescopic arm comprises a sixth connecting part and an extension part, the axes of the sixth connecting part and the extension part are mutually perpendicular, and the extension part is slidably arranged in the fifth connecting part; and a rolling element collinear with the sixth connection axis, the rolling element being rotatably disposed at the sixth connection. By means of the technical scheme, in the process of bending the bone needle, the adjusting arm and the main body form a certain angle, the bending arm is driven to drive the telescopic arm to pressurize the bone needle, the bone needle is promoted to bend, and the problem that the bending angle of the bone needle is inaccurate in the related art is solved.

Description

Bone needle bending tool

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a bone needle bending tool.

Background

The bone needle is a commonly used internal fixation material for orthopaedics and is widely applied to surgical operation. In the orthopedic operation, the tail end of the bone needle is bent in order to avoid the problems of soft tissue around the sharp tail end protrusion of the bone needle, bone needle displacement and the like.

In the prior art, in the process of bending the bone needle, the bone needle is often bent manually by depending on the experience of doctors, so that the problem of inaccurate bending angle exists.

Disclosure of Invention

The utility model provides a bone needle bending tool, which comprises: the main body comprises a first connecting part and a second connecting part, the axes of which are parallel to each other, and the first connecting part and the second connecting part are respectively arranged at two ends of the main body; the adjusting arm is provided with a third connecting part, is provided with a fastening bolt and a fastening nut, and is rotatably hinged with the first connecting part; the bending arm comprises a fourth connecting part and a fifth connecting part, the axes of the fourth connecting part and the fifth connecting part are mutually perpendicular, and the fourth connecting part is rotatably hinged with the second connecting part; the telescopic arm comprises a sixth connecting part and an extension part, the axes of the sixth connecting part and the extension part are mutually perpendicular, and the extension part is slidably arranged in the fifth connecting part; and a rolling element collinear with the sixth connection axis, the rolling element being rotatably disposed at the sixth connection.

Further, the side wall of the main body is provided with a first needle holding part, and the axis of the first needle holding part is perpendicular to the first connecting part and/or the second connecting part; the side wall of the adjusting arm is provided with a second needle holding part, and the axis of the second needle holding part is perpendicular to the third connecting part; the side wall of the bending arm is provided with a third needle holding part, and the axis of the third needle holding part is perpendicular to the fourth connecting part; the rolling element side wall is provided with a fourth needle holder with an axis parallel to the rolling element axis.

Further, the first needle holding part, the second needle holding part, the third needle holding part and the fourth needle holding part are all positioned in the same plane.

Further, the first connecting portion is provided with a marking portion, and the marking portion is located on a connecting line of the first connecting portion and the second connecting portion and is close to the first connecting portion.

Further, the adjusting arm is provided with an indicating part, the indicating part is provided with 0-90 degree scale marks, and the 0 degree scale marks are positions corresponding to the mark parts when the adjusting arm and the main body are collinear; the 90-degree scale mark is the position corresponding to the mark part when the adjusting arm is vertical to the main body.

Further, the third connecting portion is provided with a rotation stopping portion, a fastening bolt is embedded in the third connecting portion, and the fastening bolt is static relative to the adjusting arm.

Further, the middle part of the bending arm is provided with a first avoiding part, the middle part of the telescopic arm is provided with a second avoiding part, and the widths of the first avoiding part and the second avoiding part are both larger than the width of the main body.

Further, the fifth connecting portion is provided with an elastic element, and the elastic element is inserted in the fifth connecting portion in a telescopic manner and abuts against the bottom end of the extension portion.

By applying the technical scheme of the utility model, the bone needle bending tool comprises: the adjusting arm and the main body form a certain angle in the process of bending the bone needle, the bending arm is driven to drive the telescopic arm to pressurize the bone needle, and the bone needle is promoted to bend, so that the problem of inaccurate bending angle of the bone needle in the related technology is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows an exploded view of a bone pin bending tool provided according to an embodiment of the present utility model;

fig. 2 shows an assembly view of a bone pin bending tool provided according to an embodiment of the present utility model;

FIG. 3 shows a stepped cross-sectional view of a bone pin bending tool provided in accordance with an embodiment of the present utility model;

FIG. 4 shows a schematic view in semi-section of an adjustment arm of the bone pin bending device of FIG. 1;

FIG. 5 shows a schematic view of the bending arm of the bone needle bending device of FIG. 1;

FIG. 6 shows a cross-sectional view of the crimping arm of the bone needle crimping device of FIG. 1;

fig. 7 shows a partial enlarged view at a in fig. 2.

Wherein the above figures include the following reference numerals:

10. a main body; 11. a first connection portion; 111. a mark section; 12. a second connecting portion; 13. a first needle holding portion;

20. an adjusting arm; 21. a third connecting portion; 211. a fastening bolt; 212. a fastening nut; 213. a rotation stopping part; 22. an instruction unit; 23. a second needle holding portion;

30. a bending arm; 31. a fourth connecting portion; 32. a first avoidance unit; 33. a third needle holding portion; 34. a fifth connecting portion; 341. an elastic element;

40. a telescoping arm; 41. a sixth connecting portion; 42. a second avoidance unit; 43. an extension; 44. a rolling element; 441. and a fourth needle holding part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 6, the present utility model provides a bone pin bending tool, comprising: a main body 10 including a first connection part 11 and a second connection part 12 having axes parallel to each other, respectively provided at both ends of the main body 10; an adjusting arm 20 provided with a third connecting portion 21, and provided with a fastening bolt 211 and a fastening nut 212 rotatably hinged to the first connecting portion 11; a bending arm 30 including a fourth connecting portion 31 and a fifth connecting portion 34 having axes perpendicular to each other, the fourth connecting portion 31 being rotatably hinged to the second connecting portion 12; a telescopic arm 40 comprising a sixth connecting portion 41 and an extension 43 with mutually perpendicular axes, said extension 43 being slidably arranged in the fifth connecting portion 34; also included is a rolling element 44 collinear with the axis of the sixth connection 41, said rolling element being rotatably arranged at the sixth connection 41.

In this embodiment, the fastening nut 212 is a butterfly nut, which is convenient to operate during adjustment.

As shown in fig. 1 to 6, the side wall of the main body 10 is provided with a first needle holding part 13, and the axis of the first needle holding part 13 is perpendicular to the first connecting part 11 and/or the second connecting part 12; the side wall of the adjusting arm 20 is provided with a second needle holding part 23, and the axis of the second needle holding part 23 is perpendicular to the third connecting part 21; the side wall of the bending arm 30 is provided with a third needle holding part 33, and the axis of the third needle holding part 33 is perpendicular to the fourth connecting part 31; the rolling element 44 side wall is provided with a fourth needle-holding portion 441, the fourth needle-holding portion 441 axis being parallel to the rolling element 44 axis.

In particular, the first needle holding portion 13, the second needle holding portion 23, the third needle holding portion 33, and the fourth needle holding portion 441 are all located in the same plane.

In a specific implementation process, the bone needle is clamped by the first needle holding portion 13 and the second needle holding portion 23, so as to drive the bending arm 30 to drive the telescopic arm 40 to approach the main body 10, the fourth needle holding portion 441 on the rolling element 44 extrudes the bone needle, and the third needle holding portion 33 dodges the bone needle when the bending process is finished.

As shown in fig. 1, 2 and 7, the first connecting portion 11 is provided with a mark portion 111, and the mark portion 111 is located on a connecting line between the first connecting portion 11 and the second connecting portion 12 and is close to the first connecting portion 11.

The adjusting arm 20 is provided with an indicating portion 22, the indicating portion 22 is provided with 0 ° to 90 ° graduation lines, and the 0 ° graduation lines are positions corresponding to the mark portions 111 when the adjusting arm 20 is collinear with the main body 10; the 90 ° scale mark is a position corresponding to the mark portion 111 when the adjusting arm 20 is perpendicular to the main body 10.

In a specific implementation process, the scale corresponding to the mark portion 111 on the indication portion 22 is the bending angle of the bone needle.

As shown in fig. 4, the third connecting portion 21 is provided with a rotation stopping portion 213, a fastening bolt 211 is embedded, and the fastening bolt 211 is stationary relative to the adjusting arm 20.

As shown in fig. 1 to 2 and fig. 5 to 6, the middle part of the bending arm 30 is provided with a first avoiding portion 32, the middle part of the telescopic arm 40 is provided with a second avoiding portion 42, and the widths of the first avoiding portion 32 and the second avoiding portion 42 are both greater than the width of the main body 10.

As shown in fig. 1 and 3, the fifth connecting portion 34 is provided with an elastic element 341, and the elastic element 341 is telescopically inserted into the fifth connecting portion 34 and abuts against the bottom end of the extension portion 43.

In the specific implementation process, the telescopic length of the telescopic arm 40 in the fifth connecting portion 34 is different due to the different positions of the adjusting arm 20, so the elastic element 341 is disposed to abut against the bottom end of the extending portion 43, so that the rolling element 44 can continuously abut against the bone needle to squeeze.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A bone pin bending tool, comprising:

a main body (10) including a first connecting portion (11) and a second connecting portion (12) having axes parallel to each other, which are provided at both ends of the main body (10), respectively;

an adjusting arm (20) provided with a third connecting part (21), and provided with a fastening bolt (211) and a fastening nut (212) which are rotatably hinged with the first connecting part (11);

a bending arm (30) comprising a fourth connecting portion (31) and a fifth connecting portion (34) with axes perpendicular to each other, the fourth connecting portion (31) being rotatably hinged to the second connecting portion (12);

a telescopic arm (40) comprising a sixth connecting portion (41) and an extension portion (43) with mutually perpendicular axes, said extension portion (43) being slidably arranged in the fifth connecting portion (34); also included is a rolling element (44) collinear with the axis of the sixth connection (41), said rolling element (44) being rotatably arranged at the sixth connection (41).

2. The bone pin bending tool according to claim 1, wherein the side wall of the main body (10) is provided with a first needle holding part (13), and the axis of the first needle holding part (13) is perpendicular to the first connecting part (11) and/or the second connecting part (12); the side wall of the adjusting arm (20) is provided with a second needle holding part (23), and the axis of the second needle holding part (23) is perpendicular to the third connecting part (21); the side wall of the bending arm (30) is provided with a third needle holding part (33), and the axis of the third needle holding part (33) is perpendicular to the fourth connecting part (31); the rolling element (44) side wall is provided with a fourth needle holding portion (441), and the axis of the fourth needle holding portion (441) is parallel to the axis of the rolling element (44).

3. The bone pin bending tool according to claim 2, wherein the first needle holding portion (13), the second needle holding portion (23), the third needle holding portion (33) and the fourth needle holding portion (441) are all located in the same plane.

4. The bone pin bending tool according to claim 1, wherein the first connecting portion (11) is provided with a marking portion (111), and the marking portion (111) is located on a connecting line of the first connecting portion (11) and the second connecting portion (12) and is close to the first connecting portion (11).

5. The bone pin bending tool according to claim 1, wherein the adjusting arm (20) is provided with an indicating part (22), the indicating part (22) is provided with 0-90 degree graduation marks, and the 0 degree graduation marks are positions corresponding to the mark parts (111) when the adjusting arm (20) is collinear with the main body (10); the 90-degree scale mark is a position corresponding to the mark part (111) when the adjusting arm (20) is vertical to the main body (10).

6. The bone pin bending tool according to claim 1, wherein the third connecting portion (21) is provided with a rotation stopping portion (213), a fastening bolt (211) is embedded, and the fastening bolt (211) is stationary relative to the adjusting arm (20).

7. The bone needle bending tool according to claim 1, wherein a first avoiding portion (32) is arranged in the middle of the bending arm (30), a second avoiding portion (42) is arranged in the middle of the telescopic arm (40), and the widths of the first avoiding portion (32) and the second avoiding portion (42) are larger than the width of the main body (10).

8. The bone pin bending tool according to claim 1, wherein the fifth connecting portion (34) is provided with an elastic element (341), and the elastic element (341) is telescopically inserted into the fifth connecting portion (34) and abuts against the bottom end of the extension portion (43).