CN115813521A - Bone round pin bending device - Google Patents
Bone round pin bending device Download PDFInfo
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- CN115813521A CN115813521A CN202310177604.2A CN202310177604A CN115813521A CN 115813521 A CN115813521 A CN 115813521A CN 202310177604 A CN202310177604 A CN 202310177604A CN 115813521 A CN115813521 A CN 115813521A
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- bending
- hole
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- feeding
- needle
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- 238000005452 bending Methods 0.000 title claims abstract description 167
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000003423 ankle Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001513 elbow Anatomy 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000002832 shoulder Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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Abstract
The invention provides a bone round needle bending device, which comprises: the middle part of the needle holding handle is provided with a feeding part, the bottom part of the needle holding handle is provided with a clamping part and a rotation stopping part, and the rotation stopping part is communicated with the clamping part; the bending handle is provided with a connecting part and can be rotatably arranged in the feeding part in a penetrating way; the feeding handle is provided with a rigid handle and a flexible handle and can be slidably arranged in the feeding part in a penetrating way; the bending arm is provided with a backstop part and a bending part and fixedly penetrates through the feeding part; the bending disc is provided with a bending hole, the bending disc is rotatably arranged at the clamping part, and the bending hole is matched with the rotation stopping part in a matched mode. By applying the technical scheme of the invention, in the bone round needle bending process, the bending handle rotates around the needle handle in a twisting way, the feeding handle is driven to slide along the bending arm, and the bone round needle is driven to bend, so that the problems of large bending action amplitude, long time consumption and nonstandard bending angle of the bone round needle in the related technology are solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a bone round needle bending device.
Background
The bone round needle is a commonly used internal fixation material in orthopedics department and is widely applied to surgical operations. In the orthopedic operation, the device is mainly used for the auxiliary reduction and fixation of elbow, shoulder, hip, knee, wrist, ankle and other parts, the tension band of the elbow, various fracture blocks of joint surfaces and the like.
Although the bone round needle provides much convenience for fracture reduction and fixation, a plurality of complications exist. Mainly comprises two aspects that the sharp tail end protrusion of the osseous pin irritates surrounding soft tissues and the osseous pin is displaced.
Therefore, the tail end of the bone round needle is bent by 180 degrees, thereby not only avoiding the protrusion of the tail end, but also effectively preventing the bone round needle from shifting.
In the prior art, the problems of large action amplitude, long time consumption, nonstandard bending angle and the like exist in the bending process of the bone round needle, so that the operation is complex and the quality is poor.
Disclosure of Invention
The invention provides a bone round needle bending device, which comprises: the middle part of the needle holding handle is provided with a feeding part, the bottom of the needle holding handle is provided with a clamping part and a rotation stopping part, and the rotation stopping part is communicated with the clamping part; the bending handle is provided with a connecting part and can be rotatably arranged on the feeding part in a penetrating way; the feeding handle is provided with a rigid handle and a flexible handle and is slidably arranged in the feeding part in a penetrating way; the bending arm is provided with a backstop part and a bending part and fixedly penetrates through the feeding part; the bending disc is provided with a bending hole, the bending disc is rotatably arranged at the clamping part, and the bending hole is matched with the rotation stopping part in a matched mode.
Furthermore, the feeding part is provided with a twisting hole and a feeding hole, the bending handle can be rotatably arranged in the twisting hole in a penetrating way, and the feeding handle and the bending arm are arranged in the feeding hole in a penetrating way; the top of the feeding hole is provided with a clamping groove, the upper surface of the stopping part is provided with a clamping bulge, and the clamping bulge and the stopping part are embedded and matched.
Furthermore, the feeding handle comprises a rigid handle and a flexible handle, the rigid handle is slidably arranged in the feeding hole of the needle holding handle in a penetrating manner, and a first columnar bulge is arranged at the tail part of the rigid handle and slidably arranged in a sliding groove of the bending handle connecting part.
Furthermore, the flexible handle is composed of a plurality of connected rolling elements and connecting elements, a first bending gap is arranged in the middle of each rolling element, and the first bending gap is smaller than the diameter of the minimum bending hole; and second cylindrical bulges are arranged on two sides of the rolling element and are slidably arranged in the feeding groove of the bending part of the bending arm.
Further, the rolling elements are provided with a taper from two sides to the middle.
Furthermore, the bending arm is provided with a bending part which is of a 90-degree bending structure and vertically faces downwards along the side wall direction of the bending disc; the middle of the bending part is provided with a second bending gap, and the second bending gap is larger than the diameter of the maximum bending hole.
Furthermore, the clamping part is provided with a first rotating groove and a second rotating groove, the bending disc is provided with a third rotating groove and a fourth rotating groove, the first rotating groove is matched with the third rotating groove and embedded into the first rotating bearing, and the second rotating groove is matched with the fourth rotating groove and embedded into the second rotating bearing.
Further, the first rotary bearing and the second rotary bearing are conical bearings used in pairs.
Furthermore, the bending disc is provided with a plurality of bending holes, the diameters of the bending holes have a plurality of specifications, and the bending holes are distributed on the outer edge of the bending disc; furthermore, the bending hole is provided with a first section of hole and a second section of hole which are parallel to each other, and an arc-shaped connecting hole is formed at the connecting position of the first section of hole and the second section of hole; the first section hole is communicated with the lower surface of the bending disc and the arc-shaped connecting hole, the arc-shaped connecting hole is communicated with the first section hole, the second section hole and the upper surface of the bending disc, and the second section hole is communicated with the lower surface of the bending disc, the arc-shaped connecting hole and the side wall of the bending disc.
Furthermore, the rotation stopping part is communicated with the connecting part, a steel ball is arranged to abut against the second section hole of the bending hole, and a spring is arranged to abut against the steel ball.
By applying the technical scheme of the invention, the bone round needle bending device comprises: the bone round needle bending device comprises a needle holding handle, a bending handle, a feeding handle, a bending arm and a bending disc, wherein the bending handle is twisted and rotated around the needle holding handle in the bone round needle bending process, the feeding handle is driven to slide along the bending arm, and the bone round needle is driven to bend, so that the problems that in the related technology, the bone round needle bending action amplitude is large, the time consumption is long, and the bending angle is not standard are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, 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 illustrates an exploded view of a circular needle bending device according to an embodiment of the present invention;
FIG. 2 illustrates a cross-sectional view of a bone round pin bending apparatus provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural view of a needle holding handle of the bone round needle bending device in FIG. 1;
FIG. 4 is a schematic structural view of a feed handle of the circular needle bending device in FIG. 1;
FIG. 5 is a schematic structural diagram of a bending arm of the bone round needle bending device in FIG. 1;
fig. 6 shows a cross-sectional view of the bending disk of the circular needle bending apparatus of fig. 1.
Wherein the figures include the following reference numerals:
10. a needle holding handle; 11. a feeding section; 111. a hinge hole; 112. a feed hole; 1121. clamping the groove; 12. a clamping part; 121. a first rotation groove; 122. a second rotating groove; 13. a rotation stop section; 131. a steel ball; 132. a spring;
20. bending the handle; 21. a connecting portion; 211. a chute;
30. a feed handle; 31. a rigid handle; 311. a first columnar projection; 32. a flexible handle; 321. a rolling element; 3211. a first bending gap; 3212. a second cylindrical protrusion; 322. a connecting element;
40. bending the arm; 41. a backstop portion; 411. clamping the protrusions; 42. a bending part; 421. a feed slot; 422. a second bending gap;
50. bending the disc; 51. bending the hole; 511. a first section of bore; 512. a second section of holes; 513. an arc-shaped connecting hole; 52. a third rotating groove; 53. a fourth rotating groove; 54. a first rotating bearing; 55. a second rotation bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, the present invention provides a bone round needle bending device, including: the needle holding handle 10 is provided with a feeding part 11 in the middle, a clamping part 12 and a rotation stopping part 13 at the bottom, and the rotation stopping part 13 is communicated with the clamping part 12; a bending handle 20 provided with a connecting part 21 and rotatably arranged on the feeding part 11 in a penetrating way; a feed handle 30 which is provided with a rigid handle 31 and a flexible handle 32 and is slidably inserted in the feed part 11; a bending arm 40 provided with a retaining portion 41 and a bending portion 42 and fixedly inserted into the feeding portion 11; the bending plate 50 is provided with a bending hole 51, the bending plate 50 is rotatably arranged on the clamping part 12, and the bending hole 51 is matched with the rotation stopping part 13 in a matching way.
As shown in fig. 3, the feeding portion 11 is provided with a hinge hole 111 and a feeding hole 112, the bending handle 20 is rotatably inserted into the hinge hole 111, and the feeding handle 30 and the bending arm 40 are inserted into the feeding hole 112; the top of the feeding hole 112 is provided with a clamping groove 1121, the upper surface of the retaining portion 41 is provided with a clamping protrusion 411, and the clamping groove and the clamping protrusion are matched in an embedded mode, so that when the feeding handle 11 is fed along the bending arm 40, the bending arm 40 is fixed relative to the bending handle 20.
As shown in FIG. 4, the feeding handle 30 comprises a rigid handle 31 and a flexible handle 32, the rigid handle 31 is slidably disposed through the feeding hole 112 of the needle holder 10, and the rigid handle 31 has a first cylindrical protrusion 311 at the end thereof, which is slidably disposed in the sliding slot 211 of the connecting portion 21 of the bending handle 20.
It should be noted that the flexible handle 32 is composed of a plurality of connected rolling elements 321 and connecting elements 322, and a first bending gap 3211 is arranged in the middle of the rolling elements 321, so that the bone round needle is limited in the first bending gap during the bending process, and the first bending gap 3211 is smaller than the diameter of the minimum bending hole 51; the rolling element 321 is provided at both sides thereof with second cylindrical protrusions 3212 slidably disposed in the feeding grooves 421 of the bent portions 42 of the bending arms 40.
In particular, the rolling elements 321 are tapered from two sides to the middle to prevent the bone pins from slipping laterally during bending.
As shown in fig. 5, the bending arm 40 is provided with a bending portion 42, and the bending portion 42 is a 90 ° bending structure and vertically downward along the side wall direction of the bending tray 50; the middle of the bending part 42 is provided with a second bending gap 422, so that the round bone needle is avoided in the bending process of the round bone needle, and the second bending gap 422 is larger than the diameter of the maximum bending hole 51.
As shown in fig. 6, the holding portion 12 is provided with a first rotation groove 121 and a second rotation groove 122, the bending plate 50 is provided with a third rotation groove 52 and a fourth rotation groove 53, the first rotation groove 121 is engaged with the third rotation groove 52 and fitted into the first rotation bearing 54, and the second rotation groove 122 is engaged with the fourth rotation groove 53 and fitted into the second rotation bearing 55.
In particular, the first rotating bearing 54 and the second rotating bearing 55 are conical bearings used in pairs to bear the axial force applied to the first rotating bearing 54 and/or the second rotating bearing 55 during the bending of the bone round needle.
As shown in fig. 6, the bending plate 50 is provided with a plurality of bending holes 51, and the bending holes 51 have a plurality of diameters and are circumferentially distributed on the outer edge of the bending plate 50.
It should be noted that the bending hole 51 is provided with a first section hole 511 and a second section hole 512 which are parallel to each other, and an arc-shaped connecting hole 513 is arranged at the connecting position of the first section hole 511 and the second section hole 512; the first section of hole 511 is communicated with the lower surface of the bending disc 50 and the arc-shaped connecting hole 513, the arc-shaped connecting hole 513 is communicated with the first section of hole 511, the second section of hole 512 and the upper surface of the bending disc 50, and the second section of hole 512 is communicated with the lower surface of the bending disc 50, the arc-shaped connecting hole 513 and the side wall of the bending disc 50.
Particularly, the rotation stopping part 13 is communicated with the connecting part 21, provided with a second section of hole 512 for enabling the steel ball 131 to abut against the bending hole 51, and provided with a spring 132 for abutting against the steel ball 131; during assembly, the steel ball 131 and the spring 132 are assembled into the rotation stop portion 13, and the tail portion of the rotation stop portion is pressed against the spring 132 by a metal plug.
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 according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)
1. The utility model provides a bone round pin bending device which characterized in that includes:
a needle holding handle (10), the middle part of which is provided with a feeding part (11), the bottom of which is provided with a clamping part (12) and a rotation stopping part (13), and the rotation stopping part (13) is communicated with the clamping part (12);
a bending handle (20) which is provided with a connecting part (21) and can be rotatably arranged on the feeding part (11) in a penetrating way;
a feed handle (30) which is provided with a rigid handle (31) and a flexible handle (32) and is slidably arranged in the feed part (11);
a bending arm (40) which is provided with a backstop part (41) and a bending part (42) and fixedly penetrates through the feeding part (11);
the bending disc (50) is provided with a bending hole (51), the bending disc (50) is rotatably arranged on the clamping part (12), and the bending hole (51) is matched with the rotation stopping part (13) in a matching manner.
2. The bone round pin bending device according to claim 1, characterized in that the feeding portion (11) is provided with a hinge hole (111) and a feeding hole (112), the bending handle (20) is rotatably inserted into the hinge hole (111), and the feeding handle (30) and the bending arm (40) are inserted into the feeding hole (112); the top of the feed hole (112) is provided with a clamping groove (1121), the upper surface of the retaining part (41) is provided with a clamping protrusion (411), and the clamping groove and the clamping protrusion are in embedded fit.
3. The bone round needle bending device according to claim 1, wherein the feeding handle (30) comprises a rigid handle (31) and a flexible handle (32), the rigid handle (31) is slidably arranged through the feeding hole (112) of the needle holding handle (10), and a first columnar protrusion (311) is arranged at the tail of the rigid handle (31) and slidably arranged in the sliding groove (211) of the connecting part (21) of the bending handle (20).
4. The bone round needle bending device according to claim 1, wherein the flexible handle (32) is composed of a plurality of connected rolling elements (321) and connecting elements (322), a first bending gap (3211) is arranged in the middle of the rolling elements (321), and the first bending gap (3211) is smaller than the diameter of the minimum bending hole (51); second column-shaped protrusions (3212) are arranged on two sides of the rolling element (321) and are slidably arranged in the feeding groove (421) of the bending part (42) of the bending arm (40).
5. The device for bending round bone needles as claimed in claim 4, wherein the rolling elements (321) are tapered from two sides to the middle.
6. The bone round pin bending device according to claim 1, wherein the bending arm (40) is provided with a bending part (42), the bending part (42) is of a 90-degree bending structure and vertically faces downwards along the side wall direction of the bending disc (50); a second bending gap (422) is arranged in the middle of the bending part (42), and the diameter of the second bending gap (422) is larger than that of the maximum bending hole (51).
7. The device for bending the bone round needle as claimed in claim 1, wherein the holding portion (12) is provided with a first rotation groove (121) and a second rotation groove (122), the bending disk (50) is provided with a third rotation groove (52) and a fourth rotation groove (53), the first rotation groove (121) and the third rotation groove (52) are matched and embedded in the first rotation bearing (54), and the second rotation groove (122) and the fourth rotation groove (53) are matched and embedded in the second rotation bearing (55).
8. The device for bending the circular needle according to claim 7, wherein the first rotary bearing (54) and the second rotary bearing (55) are conical bearings used in pairs.
9. The round pin bending device according to claim 1, wherein the bending disk (50) is provided with a plurality of bending holes (51), the bending holes (51) have a plurality of diameters and are distributed on the outer edge of the bending disk (50); furthermore, the bending hole (51) is provided with a first section of hole (511) and a second section of hole (512) which are parallel to each other, and an arc-shaped connecting hole (513) is arranged at the connecting position of the first section of hole (511) and the second section of hole (512); the first section of hole (511) is communicated with the lower surface of the bending disc (50) and the arc-shaped connecting hole (513), the arc-shaped connecting hole (513) is communicated with the first section of hole (511), the second section of hole (512) and the upper surface of the bending disc (50), and the second section of hole (512) is communicated with the lower surface of the bending disc (50), the arc-shaped connecting hole (513) and the side wall of the bending disc (50).
10. The device for bending the bone round needle according to claim 1, wherein the rotation stop part (13) is communicated with the connecting part (21), the second section hole (512) of the steel ball (131) is abutted against the bending hole (51), and the spring (132) is abutted against the steel ball (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310177604.2A CN115813521B (en) | 2023-02-28 | 2023-02-28 | Bone round needle bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310177604.2A CN115813521B (en) | 2023-02-28 | 2023-02-28 | Bone round needle bending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115813521A true CN115813521A (en) | 2023-03-21 |
| CN115813521B CN115813521B (en) | 2023-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310177604.2A Active CN115813521B (en) | 2023-02-28 | 2023-02-28 | Bone round needle bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115813521B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115317A (en) * | 2023-04-04 | 2023-05-16 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
| CN116725620A (en) * | 2023-08-15 | 2023-09-12 | 北京爱康宜诚医疗器材有限公司 | Electric marrow cavity file clamping device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125375U (en) * | 1990-10-01 | 1992-12-23 | 陈智 | Appliance for surgical methods of treatment of bones |
| JPH0929338A (en) * | 1995-05-16 | 1997-02-04 | Ngk Insulators Ltd | Method for bending member to be bent and bending jig therefor |
| CN210435089U (en) * | 2019-12-13 | 2020-05-01 | 昆山帝腾电器有限公司 | Bending device |
| CN214180562U (en) * | 2020-12-09 | 2021-09-14 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Bending device structure for Kirschner wire |
| CN217611271U (en) * | 2022-04-12 | 2022-10-21 | 安阳市圣杰科技有限公司 | Jaw face steel sheet pincers of bending |
-
2023
- 2023-02-28 CN CN202310177604.2A patent/CN115813521B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125375U (en) * | 1990-10-01 | 1992-12-23 | 陈智 | Appliance for surgical methods of treatment of bones |
| JPH0929338A (en) * | 1995-05-16 | 1997-02-04 | Ngk Insulators Ltd | Method for bending member to be bent and bending jig therefor |
| CN210435089U (en) * | 2019-12-13 | 2020-05-01 | 昆山帝腾电器有限公司 | Bending device |
| CN214180562U (en) * | 2020-12-09 | 2021-09-14 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Bending device structure for Kirschner wire |
| CN217611271U (en) * | 2022-04-12 | 2022-10-21 | 安阳市圣杰科技有限公司 | Jaw face steel sheet pincers of bending |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115317A (en) * | 2023-04-04 | 2023-05-16 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
| CN116115317B (en) * | 2023-04-04 | 2023-06-06 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
| CN116725620A (en) * | 2023-08-15 | 2023-09-12 | 北京爱康宜诚医疗器材有限公司 | Electric marrow cavity file clamping device |
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| Publication number | Publication date |
|---|---|
| CN115813521B (en) | 2023-05-12 |
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Effective date of registration: 20231204 Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: BEIJING AK MEDICAL Co.,Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee before: BEIJING AK MEDICAL Co.,Ltd. Patentee before: BEIJING JISHUITAN Hospital |