CN214017782U - B-shaped Kirschner wire - Google Patents
B-shaped Kirschner wire Download PDFInfo
- Publication number
- CN214017782U CN214017782U CN202022156951.1U CN202022156951U CN214017782U CN 214017782 U CN214017782 U CN 214017782U CN 202022156951 U CN202022156951 U CN 202022156951U CN 214017782 U CN214017782 U CN 214017782U
- Authority
- CN
- China
- Prior art keywords
- shaped
- kirschner wire
- tension band
- wire
- proximal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005452 bending Methods 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 210000000629 knee joint Anatomy 0.000 abstract description 5
- 210000003314 quadriceps muscle Anatomy 0.000 abstract description 4
- 208000010392 Bone Fractures Diseases 0.000 description 11
- 206010017076 Fracture Diseases 0.000 description 11
- 210000004417 patella Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 206010034122 Patella fracture Diseases 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000004285 patellofemoral joint Anatomy 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a b shape kirschner wire, including near-end, b shape end, cadre, the near-end is established the upper end of cadre, just the axis direction perpendicular to of near-end the axis direction of connecting portion, b shape end is established the lower extreme of cadre. The tension band of the b-shaped Kirschner wire is adopted for fixation, so that the withdrawal force of the Kirschner wire in the proximal direction is resisted, the tension band passes through the hole in the b-shaped end, the Kirschner wire and the tension band are integrated, and the problems that the quadriceps femoris repeatedly draws to enable the Kirschner wire to be subjected to the withdrawal force in the proximal direction to shift and loosen towards the proximal end during the movement of the knee joint after operation, and further the tension band is out of the sleeve and the internal fixation is invalid are solved.
Description
Technical Field
The utility model relates to a medical treatment technical field, more specifically say, the utility model relates to a b shape ke shi needle.
Background
The patella fracture is intra-articular fracture, fracture of a knee stretching device after fracture and mismatch of a patellofemoral joint seriously affect the motion function of a knee joint. The treatment principle of patellar fracture is to restore the smooth joint surface of the patella, so that the patella can be firmly fixed and can move in early stage. The treatment methods of the patellar fracture are many, and the fixation in the AO kirschner wire tension band is a simple and effective classic method for treating the patellar fracture. It can convert the tension of two ends of fracture into the pressure of fracture, so that it can make fracture block retain reset and promote fracture union. But clinically, the relevant complications caused by loosening and slipping of the kirschner wire, sleeve removal of the tension band and failure of internal fixation are often encountered. Mainly because the quadriceps femoris muscle repeatedly pulls when the knee joint moves after operation, the kirschner wire is subject to the pulling force towards the proximal direction to shift and loosen towards the proximal end, and then the tension band is sleeved and the internal fixation is invalid. Therefore, there is a need to improve the structure of the k-wire, i.e. to provide a b-shaped k-wire, which is temporarily modified from the conventional k-wire operation to the b-shaped k-wire, so as to solve the problems existing in the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the above problem at least partially, the utility model provides a b shape kirschner wire, include: the near end is arranged at the upper end of the dry part, the axial direction of the near end is perpendicular to the axial direction of the connecting part, and the b-shaped end is arranged at the lower end of the dry part.
Preferably, the b-shaped end is a spiral shape formed by bending the lower end of the stem portion 360 degrees and then bending the stem portion 90 degrees, and the upper end of the stem portion 90 degrees forms the proximal end.
Preferably, the center of the b-shaped end spiral is provided with a hole.
Preferably, the periphery of the spiral shape of the b-shaped end is arc-shaped.
Preferably, the proximal end, the stem portion, and the b-shaped end are all made of a titanium alloy material.
Compared with the prior art, the utility model discloses at least, including following beneficial effect:
the b-shaped Kirschner wire of the utility model contacts with the sclerotin through the arc-shaped part of the b-shaped end, and simultaneously avoids the stimulation of soft tissues to cause pain; the tension band of the b-shaped Kirschner wire is adopted for fixation, so that the withdrawal force of the Kirschner wire in the proximal direction is resisted, the tension band passes through the hole in the b-shaped end, the Kirschner wire and the tension band are integrated, and the problems that the quadriceps femoris repeatedly draws to enable the Kirschner wire to be subjected to the withdrawal force in the proximal direction to shift and loosen towards the proximal end during the movement of the knee joint after operation, and further the tension band is removed from the sleeve and the internal fixation fails are solved.
The invention is described in terms of a b-shaped k-wire, and other advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
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 view of a b-shaped kirschner wire of the present invention.
Fig. 2 is a schematic structural diagram of a b-shaped end of a b-shaped kirschner wire according to the present invention.
Fig. 3 is a practical schematic view of a b-shaped kirschner wire according to the present invention.
Description of reference numerals: 1 proximal end, 2 crura, 3 b-shaped end, 4 holes, g patella, z fracture gap, t titanium cable, d femur distal end, e tibia proximal end.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-3, the present invention provides a b-shaped kirschner wire, which comprises a proximal end 1, a b-shaped end 3, and a dry part 2, wherein the proximal end 1 is arranged at the upper end of the dry part 2, the axial direction of the proximal end 1 is perpendicular to the axial direction of the connecting part 2, and the b-shaped end 3 is arranged at the lower end of the dry part 2;
the b-shaped end 3 is a spiral shape formed by bending the lower end of the dry part 2 by 360 degrees and then continuously bending by 90 degrees, and the upper end of the dry part 2 is bent by 90 degrees to form the proximal end 1; the spiral center of the b-shaped end 3 is provided with a hole 4; the spiral periphery of the b-shaped end 3 is arc-shaped.
The working principle of the technical scheme is as follows: in practical application, after the patella fracture is reset, two Kirschner wires are placed in a vertical fracture line, the lower end of the cadre part 2 is bent for 360 degrees and then is continuously bent for 90 degrees to form a b-shaped end 3, the b-shaped end 3 is attached to the lower pole of the patella g, the titanium cable t penetrates through a hole of the b-shaped end, a tension belt is formed by winding the proximal end 1 of the Kirschner wire, and then the upper end of the cadre part 2 is bent for 90 degrees and then the residual end is cut to form the proximal end 1.
The beneficial effects of the above technical scheme are that: through the design of the structure, the arc-shaped part of the b-shaped end 3 contacts with sclerotin, and simultaneously, the pain caused by the stimulation of soft tissues can be avoided; the tension band of the b-shaped Kirschner wire is adopted for fixation, so that the withdrawal force of the Kirschner wire in the proximal direction is resisted, the tension band passes through the hole in the b-shaped end, the Kirschner wire and the tension band are integrated, and the problems that the quadriceps femoris repeatedly draws to enable the Kirschner wire to be subjected to the withdrawal force in the proximal direction to shift and loosen towards the proximal end during the movement of the knee joint after operation, and further the tension band is removed from the sleeve and the internal fixation fails are solved.
In one embodiment, the proximal end 1, the shaft 2, and the b-shaped end 3 are all made of a titanium alloy material.
The working principle and the beneficial effects of the technical scheme are as follows: the titanium alloy material has no harm to human body, is lighter in material under the same volume, high in strength, longer in service time and excellent in biocompatibility, and cannot be broken when the titanium alloy material is selected due to the fineness of the device.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may be readily effected by those skilled in the art, and the invention is thus not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (5)
1. A b-shaped k-wire, characterized in that:
the medical instrument comprises a near end (1), a b-shaped end (3) and a dry part (2), wherein the near end (1) is arranged at the upper end of the dry part (2), the axial direction of the near end (1) is perpendicular to the axial direction of the dry part (2), and the b-shaped end (3) is arranged at the lower end of the dry part (2).
2. A b-shaped k-wire as claimed in claim 1, wherein:
the b-shaped end (3) is a spiral shape formed by bending the lower end of the dry part (2) for 360 degrees and then bending the lower end of the dry part for 90 degrees, and the upper end of the dry part (2) is bent for 90 degrees to form the near end (1).
3. A b-shaped k-wire as claimed in claim 2, wherein:
the spiral center of the b-shaped end (3) is provided with a hole (4).
4. A b-shaped k-wire as claimed in claim 2, wherein:
the spiral periphery of the b-shaped end (3) is arc-shaped.
5. A b-shaped k-wire as claimed in claim 1, wherein:
the proximal end (1), the dry portion (2) and the b-shaped end (3) are all made of titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156951.1U CN214017782U (en) | 2020-09-27 | 2020-09-27 | B-shaped Kirschner wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156951.1U CN214017782U (en) | 2020-09-27 | 2020-09-27 | B-shaped Kirschner wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214017782U true CN214017782U (en) | 2021-08-24 |
Family
ID=77350796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022156951.1U Expired - Fee Related CN214017782U (en) | 2020-09-27 | 2020-09-27 | B-shaped Kirschner wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214017782U (en) |
-
2020
- 2020-09-27 CN CN202022156951.1U patent/CN214017782U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |