CN116172681B - Quantitative bending tool for Kirschner wire - Google Patents
Quantitative bending tool for Kirschner wire Download PDFInfo
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- CN116172681B CN116172681B CN202310465171.0A CN202310465171A CN116172681B CN 116172681 B CN116172681 B CN 116172681B CN 202310465171 A CN202310465171 A CN 202310465171A CN 116172681 B CN116172681 B CN 116172681B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8863—Apparatus for shaping or cutting osteosynthesis equipment by medical personnel
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- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Animal Behavior & Ethology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Food-Manufacturing Devices (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a quantitative bending tool for a Kirschner wire, which comprises the following components: the main body is provided with a first connecting part, a second connecting part and a third connecting part, the side wall of the main body is also provided with a first inclined plane and a second inclined plane, and the first inclined plane and the second inclined plane intersect and form an included angle of 60 degrees; the pressing body comprises a plurality of eccentric handles which are parallel to each other and a linkage handle which is parallel to the main body and hinged with the eccentric handles, the eccentric handles are provided with a fourth connecting part, a fifth connecting part and an eccentric part, the eccentric parts are hinged with the first connecting part and the second connecting part of the main body, and the linkage handle is provided with a sixth connecting part and a seventh connecting part which are hinged with the fourth connecting part; the bending body is provided with an eighth connecting part hinged with a third connecting part and an opening and closing part, and is provided with an initial position for being tightly attached to the main body and an adjusted pressing position. By applying the technical scheme of the invention, the problems of unstable clamping, unstable bending and the like during bending of the Kirschner wire in the related technology can be solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a quantitative bending tool for a Kirschner wire.
Background
Kirschner wire is one kind of inner fixing material for orthopaedics and is used widely in surgical operation. In the orthopedic operation, the Kirschner wire is mainly used for auxiliary reduction fixation of tension bands at the parts of elbows, shoulders, hips, knees, wrists, ankles and the like and various joint surface fracture blocks. Although kirschner wires provide many convenience for fracture reduction fixation, there are two problems: (1) The sharp tail end of the kirschner wire stimulates surrounding soft tissue; (2) Kirschner wire displacement.
Therefore, the tail end of the Kirschner wire is bent at a certain angle, so that the tail end protrusion can be avoided, and the Kirschner wire can be effectively prevented from shifting. In the prior art, the problems of unstable clamping, unstable bending and the like exist in the bending process of the Kirschner wire, so that the operation is complex and the quality is poor.
Disclosure of Invention
The invention provides a quantitative bending tool for a Kirschner wire, which comprises the following components: the main body is provided with a first connecting part, a second connecting part and a third connecting part, the rotation center connecting line of the first connecting part and the second connecting part is parallel to the central line of the main body, the included angle between the rotation center connecting line of the first connecting part and the third connecting part and the central line of the main body is 45 degrees, the side wall of the main body is also provided with a first inclined plane and a second inclined plane, and the first inclined plane and the second inclined plane are intersected and have an included angle of 60 degrees; the pressing body comprises a plurality of eccentric handles which are parallel to each other and a linkage handle which is parallel to the main body and hinged with the eccentric handles, the eccentric handles are provided with a fourth connecting part, a fifth connecting part and an eccentric part, the eccentric parts are hinged with the first connecting part and the second connecting part of the main body, and the linkage handle is provided with a sixth connecting part and a seventh connecting part which are hinged with the fourth connecting part; the bending body is provided with an eighth connecting part hinged with a third connecting part and an opening and closing part, and is provided with an initial position for being tightly attached to the main body and an adjusted pressing position.
Further, the first inclined plane and the second inclined plane define a kirschner wire placing groove, the kirschner wire placing groove comprises a pressing section, a bending arc section and a guiding section, the pressing section is parallel to the guiding section, and the bending arc section has radiuses of different specifications.
Further, the eccentric handle further comprises a rolling wheel rotatably arranged at the fifth connecting part.
Further, the rolling wheel comprises a rolling part and an outer ring, and the outer ring is made of rubber.
Further, the eccentric handle is provided with an avoidance protrusion, and the minimum gap between the sixth connecting part and the seventh connecting part of the widened linkage handle is larger than or equal to the width of the main body.
Further, the linkage handle is provided with an avoidance part, and the avoidance part is communicated with the seventh connecting part.
Further, the minimum clearance of the avoidance portion is equal to or greater than the width of the main body.
Further, the bending body is provided with an adjusting part, comprises a threaded hole and an adjusting nut, and is rotatably arranged above the opening and closing part.
By applying the technical scheme of the invention, the quantitative bending tool for the Kirschner wire comprises: the device comprises a main body, a pressing body and a bending body, wherein the pressing body is driven to press the kirschner wire close to the main body, and the bending body is driven to bend the kirschner wire. The problems of unstable clamping, unstable bending and the like during bending of the Kirschner wire in the related art can be solved.
Drawings
The accompanying drawings, which 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. In the drawings:
fig. 1 shows an exploded view of a k-wire quantitative bending tool provided according to an embodiment of the present invention;
FIG. 2 shows a top view of a K-wire quantitative bending tool provided in accordance with an embodiment of the present invention;
FIG. 3 shows a cross-sectional view at A-A in FIG. 2;
FIG. 4 shows a cross-sectional view at B-B in FIG. 2;
FIG. 5 shows a top view of the body of the K-wire quantitative bending tool of FIG. 1;
FIG. 6 shows a schematic structural view of a bending body of the K-wire quantitative bending tool in FIG. 1;
FIG. 7 shows a front view of the eccentric shank of the K-wire quantitative bending tool of FIG. 1;
FIG. 8 shows a cross-sectional view at C-C in FIG. 7;
fig. 9 shows a right side view of the eccentric shank of the k-wire quantitative bending tool of fig. 1.
Wherein the above figures include the following reference numerals:
10. a main body; 11. a first connection portion; 12. a second connecting portion; 13. a third connecting portion; 14. a first inclined surface; 15. a second inclined surface; 16. a kirschner wire placement groove; 161. a compacting section; 162. bending the arc section; 163. a guide section; 17. an instruction unit;
20. a pressing body; 21. an eccentric handle; 211. a fourth connecting portion; 2111. avoiding the bulge; 212. a fifth connecting portion; 213. a eccentric portion; 214. a rolling wheel; 2141. a rolling part; 2142. an outer ring; 22. a linkage handle; 221. a sixth connecting portion; 222. a seventh connecting portion; 223. an avoidance unit;
30. a bending body; 31. an eighth connecting portion; 32. an opening/closing section; 33. an adjusting section; 331. a threaded hole; 332. an adjusting nut; 34. a mark part.
Detailed Description
The following description of the embodiments of the present invention 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 invention, 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 invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 9, the present invention provides a k-wire quantitative bending tool, comprising: the main body 10 is provided with a first connecting part 11, a second connecting part 12 and a third connecting part 13, the rotation center connecting line of the first connecting part 11 and the second connecting part 12 is parallel to the central line of the main body 10, the included angle between the rotation center connecting line of the first connecting part 11 and the third connecting part 13 and the central line of the main body 10 is 45 degrees, the side wall of the main body 10 is also provided with a first inclined plane 14 and a second inclined plane 15, and the first inclined plane 14 and the second inclined plane 15 are intersected and have an included angle of 60 degrees; the pressing body 20 comprises a plurality of eccentric handles 21 parallel to each other and a linkage handle 22 parallel to the main body 10 and hinged with the eccentric handles 21, wherein the eccentric handles 21 are provided with a fourth connecting part 211, a fifth connecting part 212 and an eccentric part 213, the eccentric part 213 is hinged with the first connecting part 11 and the second connecting part 12 of the main body 10, and the linkage handle 22 is provided with a sixth connecting part 221 and a seventh connecting part 222 which are hinged with the fourth connecting part 211; the bending body 30 is provided with an eighth connecting part 31 hinged with the third connecting part 13, and is provided with an opening and closing part 32, and has an initial position for being abutted against the main body 10 and an adjusted pressing position.
As shown in fig. 3 to 5, the first inclined surface 14 and the second inclined surface 15 define a k-wire placing groove 16, the k-wire placing groove 16 comprises a pressing section 161, a bending arc section 162 and a guiding section 163, the pressing section 161 is parallel to the guiding section 163, and the bending arc section 162 has radiuses of different specifications. When the k-wire is bent, the k-wire is firstly placed through the pressing section 161, the movable pressing body 20 moves towards the main body 10 to press the k-wire, and the bending body 30 is further driven to bend the k-wire along the bending arc section 162 and the guiding section 163.
As shown in fig. 1 and 3, the eccentric shaft 21 further includes a rolling wheel 214 rotatably disposed at the fifth connection portion 212. The eccentric handle 21 compresses tightly after the butt with the kirschner wire and can produce the friction and lead to the kirschner wire displacement, causes the inaccurate problem of kirschner wire bending position, and the setting of the wheel 214 of rolling can become the roll, effectively reduces the displacement that the friction leads to, makes the kirschner wire bend more accurately.
In particular, the rolling wheel 214 includes a rolling portion 2141 and an outer ring 2142, and the outer ring 2142 is made of rubber to reduce the deformation of the k-wire caused by the compression of the rolling wheel 214 on the k-wire.
As shown in fig. 1 and 2, the eccentric shaft 21 is provided with a relief protrusion 2111, and the minimum gap between the sixth connection portion 221 and the seventh connection portion 222 of the widened linkage shaft 22 is equal to or greater than the width of the main body 10, so that the first connection portion 11 is relieved when the linkage shaft 22 approaches the main body 10.
Specifically, the linkage handle 22 is provided with a relief portion 223, and the relief portion 223 communicates with the seventh connecting portion 222.
As shown in fig. 2, the minimum gap of the relief portion 223 is equal to or greater than the width of the main body 10, and the second connecting portion 12 is relieved when the link lever 22 approaches the main body 10.
As shown in fig. 1 and 3, the bending body 30 has an adjusting portion 33, including a threaded hole 331 and an adjusting nut 332, rotatably disposed above the opening and closing portion 32, and before the k-wire is bent, the opening and closing portion 32 is driven by the adjusting nut 332 to press close the k-wire, so as to ensure that the k-wire is deformed when being pressed against the bending arc 162 during bending.
As shown in fig. 1, the main body 10 is further provided with an indication portion 17, the angle of the indication portion 17 is 0 ° to 180 °, the bending body 30 is provided with a mark portion 34, and the position corresponding to the mark portion 34 on the indication portion 17 is the k-wire bending angle.
As shown in fig. 7 to 9, the eccentric means that the rotation center of the eccentric portion 213 is deviated from the rotation center of the fifth connecting portion 212, and the outer ring 2142 gradually approaches the upper surface of the main body 10 during the rotation of the eccentric shaft 21, so as to compress the k-wire.
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 invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 k shi needle ration instrument of bending which characterized in that includes: the main body (10) is provided with a first connecting part (11), a second connecting part (12) and a third connecting part (13), a rotation center connecting line of the first connecting part (11) and the second connecting part (12) is parallel to the central line of the main body (10), an included angle between the rotation center connecting line of the first connecting part (11) and the third connecting part (13) and the central line of the main body (10) is 45 degrees, the side wall of the main body (10) is also provided with a first inclined plane (14) and a second inclined plane (15), and the first inclined plane (14) is intersected with the second inclined plane (15) and has an included angle of 60 degrees; the pressing body (20) comprises a plurality of eccentric handles (21) which are parallel to each other and a linkage handle (22) which is parallel to the main body (10) and is hinged with the eccentric handles (21), wherein the eccentric handles (21) are provided with a fourth connecting part (211), a fifth connecting part (212) and an eccentric part (213), the eccentric part (213) is hinged with a first connecting part (11) and a second connecting part (12) of the main body (10), and the linkage handle (22) is provided with a sixth connecting part (221) and a seventh connecting part (222) which are hinged with the fourth connecting part (211); the bending body (30) is provided with an eighth connecting part (31) hinged with a third connecting part (13), is provided with an opening and closing part (32) and has an initial position for being tightly attached to the main body (10) and an adjusted pressing position.
2. The k-wire quantitative bending tool according to claim 1, wherein the first inclined surface (14) and the second inclined surface (15) define a k-wire placing groove (16), the k-wire placing groove (16) comprises a pressing section (161), a bending arc section (162) and a guiding section (163), the pressing section (161) is parallel to the guiding section (163), and the bending arc section (162) has radiuses of different specifications.
3. The k-wire quantitative bending tool according to claim 1, wherein the eccentric shank (21) further comprises a rolling wheel (214) rotatably arranged at the fifth connecting portion (212).
4. A tool for quantitatively bending a k-wire according to claim 3, wherein the rolling wheel (214) comprises a rolling part (2141) and an outer ring (2142), and the outer ring (2142) is made of rubber.
5. The k needle quantitative bending tool according to claim 1, wherein the eccentric handle (21) is provided with an avoidance protrusion (2111), and a minimum gap between a sixth connecting portion (221) and a seventh connecting portion (222) of the widening linkage handle (22) is greater than or equal to the width of the main body (10).
6. The k needle quantitative bending tool according to claim 1, wherein the linkage handle (22) is provided with an avoidance portion (223), and the avoidance portion (223) is communicated with a seventh connecting portion (222).
7. The k-wire quantitative bending tool according to claim 6, wherein the minimum clearance of the avoiding portion (223) is equal to or greater than the width of the main body (10).
8. The k-wire quantitative bending tool according to claim 1, wherein the bending body (30) has an adjusting portion (33) including a threaded hole (331) and an adjusting nut (332) rotatably disposed above the opening and closing portion (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310465171.0A CN116172681B (en) | 2023-04-27 | 2023-04-27 | Quantitative bending tool for Kirschner wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310465171.0A CN116172681B (en) | 2023-04-27 | 2023-04-27 | Quantitative bending tool for Kirschner wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116172681A CN116172681A (en) | 2023-05-30 |
| CN116172681B true CN116172681B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310465171.0A Active CN116172681B (en) | 2023-04-27 | 2023-04-27 | Quantitative bending tool for Kirschner wire |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2021214739A2 (en) * | 2020-10-12 | 2021-10-28 | Inno4Spine Ag | Spinal in-situ bender |
| CN215079534U (en) * | 2021-04-01 | 2021-12-10 | 创美得医疗器械（天津）有限公司 | Novel kirschner wire curved needle forceps |
| CN217338799U (en) * | 2022-04-11 | 2022-09-02 | 天津市人民医院 | Kirschner wire bending device and orthopedic Kirschner wire forceps scissors with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190175224A1 (en) * | 2017-12-12 | 2019-06-13 | Spinal Llc | Spring clip bottom loading polyaxial ball and socket fastener |
-
2023
- 2023-04-27 CN CN202310465171.0A patent/CN116172681B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021214739A2 (en) * | 2020-10-12 | 2021-10-28 | Inno4Spine Ag | Spinal in-situ bender |
| 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 |
| CN215079534U (en) * | 2021-04-01 | 2021-12-10 | 创美得医疗器械（天津）有限公司 | Novel kirschner wire curved needle forceps |
| CN217338799U (en) * | 2022-04-11 | 2022-09-02 | 天津市人民医院 | Kirschner wire bending device and orthopedic Kirschner wire forceps scissors with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116172681A (en) | 2023-05-30 |
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