CN214907947U - Novel kirschner wire for preventing vascular injury - Google Patents
Novel kirschner wire for preventing vascular injury Download PDFInfo
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- CN214907947U CN214907947U CN202023218138.9U CN202023218138U CN214907947U CN 214907947 U CN214907947 U CN 214907947U CN 202023218138 U CN202023218138 U CN 202023218138U CN 214907947 U CN214907947 U CN 214907947U
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- outer needle
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Abstract
The utility model discloses a novel prevent blood vessel damage's ke shi needle, including the needle body, the toper section, spring and packing ring, the needle body is cylindrical, the needle body leans on the tail end to have one section toper section, spring and packing ring all overlap on the needle body, and the one end of spring and the bottom face fixed connection of toper section, the other end is connected with the packing ring, the needle body includes interior needle body and outer needle body, and interior needle body inlays inside outer needle body, and for outer needle body swing joint, the top of interior needle body is the needle point, the needle point is convex, interior needle body is provided with bellied fixture block by the side of bottom, outer needle body is provided with hollow cavity, outer needle body is provided with the fluting by the side of bottom, the fixture block sets up in the fluting, grooved one side is provided with a plurality of stoppers. This neotype prevent vascular damage's kirschner wire has adopted interior needle body and outer needle body, and the interior needle body that has the needle point can contract in the cavity of outer needle body for the in-process that uses can prevent that the needle point from damaging the artery, avoids causing secondary damage, facilitates the use.
Description
Technical Field
The utility model belongs to the technical field of the kirschner wire, concretely relates to novel prevent vascular damage's kirschner wire.
Background
The Kirschner wire is widely applied in orthopedic surgery, and the external fixation method is usually selected for some patients with open fracture or accompanied soft tissue infection and skin defect. Wherein, annular external fixation frame device not only has stability good, can also pressurize the fracture end through external regulation simultaneously. Even in some comminuted fractures, the bone can be fixed by pulling through the bone block with an olive kirschner wire. However, the fixation of the oliver wire is often disabled due to the change of the position of the bone or the partial absorption of the bone during later activities. Unstable bone mass fixation can affect fracture healing, with delayed or no healing, and even the need for revision surgery. Not only increases the economic burden of the patients, but also increases the pain and the hospitalization time of the patients.
In patent CN201922495048.5, an elastic pressure fixing kirschner wire comprises a needle body, a needle tip, a spring, a washer and a conical section; the needle body is cylindrical, and the top of needle body is the needle point, and the needle point is triangular pyramid, has one section toper section in the middle of the needle body, and spring and packing ring all overlap on the needle body, and the one end of spring and the bottom face fixed connection of toper section, the other end and packing ring fixed connection. The bottom end surface of the conical section and the outer side of the gasket are both rounded off, so that the conical section is smooth, the user can be prevented from being scratched, the damage to soft tissues can be reduced, the inner diameter of the gasket is larger than the diameter of the needle body, and the gasket can axially slide on the needle body along with the spring. Be provided with the spring on the ke shi needle, pass the fracture piece with this elasticity pressurization ke shi needle and the pressurization is fixed in annular external fixation frame, and the spring is in elastic deformation compression state this moment, can last pressurization effect to the bone piece, and when the bone piece position change of later stage or bone piece part absorption, the ke shi needle spring part can provide one through elastic deformation and last pressurization effect all the time, stabilizes the bone piece and promotes fracture healing. Although the above problems are solved, the following problems still remain:
the needle point adopted by the elastic pressurizing fixing kirschner wire cannot be contracted, so that the artery of a patient is easily damaged in the using process, and secondary damage is caused to the patient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel prevent vascular damage's kirschner wire to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a novel Kirschner wire for preventing blood vessel injury comprises a needle body, a conical section, a spring and a gasket, wherein the needle body is cylindrical, the conical section is arranged at the tail end of the needle body, the spring and the gasket are sleeved on the needle body, one end of the spring is fixedly connected with the bottom end surface of the conical section, the other end of the spring is connected with the gasket, the needle body comprises an inner needle body and an outer needle body, and the inner needle body is embedded in the outer needle body and movably connected with the outer needle body;
the top end of the inner needle body is a needle point, the needle point is in an arc shape, and a convex clamping block is arranged on the side surface of the inner needle body close to the bottom;
the outer needle body is provided with hollow cavity, the side that outer needle body leaned on the bottom is provided with the fluting, the fixture block sets up in the fluting, grooved one side is provided with a plurality of stoppers, and the stopper is used for spacing the fixture block.
Preferably, the outer needle body is provided with an opening at a position close to the needle tip, and the other end of the outer needle body is provided with a closing.
In any of the above schemes, preferably, the width between two adjacent limiting blocks is not less than the width of the fixture block.
It is preferred in any preceding scheme, the diameter of outer needle body is 3mm, toper section head end diameter is 3mm, and its bottom diameter is 6mm, and length is 5mm, the internal diameter of spring is 1mm, and the external diameter is 3mm, and length is 8mm, the packing ring internal diameter is 3.5mm, and the external diameter is 6mm, and thickness is 3 mm.
Preferably in any one of the above schemes, both ends of the outer needle body are provided with openings, and the inner wall of the opening at the bottom is provided with threads for being in threaded connection with another outer needle body.
In any of the above schemes, preferably, the needle body is made of stainless steel material.
The utility model discloses a technological effect and advantage: this neotype prevent vascular damage's kirschner wire has adopted interior needle body and outer needle body, and the interior needle body that has the needle point can contract in the cavity of outer needle body for the in-process that uses can prevent that the needle point from damaging the artery, avoids causing secondary damage, facilitates the use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a part of the structure of the present invention;
FIG. 3 is a schematic structural view of the inner needle body of the present invention;
fig. 4 is a schematic structural view of the outer needle body of the present invention.
In the figure: 1. a needle body; 11. an inner needle body; 12. an outer needle body; 2. a tapered section; 3. a spring; 4. a gasket; 5. a cavity; 6. a clamping block; 7. grooving; 8. a limiting block; 9. a needle tip.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
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 the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example 1:
the utility model provides a novel Kirschner wire for preventing blood vessel injury as shown in figures 1-4, which comprises a needle body 1, a conical section 2, a spring 3 and a gasket 4, wherein the needle body 1 is cylindrical, the outer needle body 12 and the inner needle body 11 are both cylindrical, the top end of the outer needle body 12 is a blunt end with the diameter of 2cm, the needle body 1 is made of stainless steel material, the needle body 1 is provided with a conical section 2 near the tail end, the spring 3 and the gasket 4 are both sleeved on the needle body 1, one end of the spring 3 is fixedly connected with the bottom end surface of the conical section 2, the other end is connected with the gasket 4, the diameter of the outer needle body 12 is 3mm, the diameter of the head end of the conical section 2 is 3mm, the diameter of the bottom end is 6mm, the length is 5mm, the inner diameter of the spring 3 is 1mm, the outer diameter is 3mm, the length is 8mm, the inner diameter of the gasket 4 is 3.5mm, the outer diameter is 6mm, the thickness is 3mm, the needle body 1 comprises the inner needle body 11 and the outer needle body 12, the inner needle body 11 is embedded in the outer needle body 12 and is movably connected with the outer needle body 12;
the top end of the inner needle body 11 is a needle point 9, the needle point 9 is in a circular arc shape, and a convex clamping block 6 is arranged on the side surface of the inner needle body 11 close to the bottom;
Example 2:
the utility model provides a novel Kirschner wire for preventing blood vessel injury as shown in figures 1-4, which comprises a needle body 1, a conical section 2, a spring 3 and a gasket 4, wherein the needle body 1 is cylindrical, the outer needle body 12 and the inner needle body 11 are both cylindrical, the top end of the outer needle body 12 is a blunt end with the diameter of 2cm, the needle body 1 is made of stainless steel material, the needle body 1 is provided with a conical section 2 near the tail end, the spring 3 and the gasket 4 are both sleeved on the needle body 1, one end of the spring 3 is fixedly connected with the bottom end surface of the conical section 2, the other end is connected with the gasket 4, the diameter of the outer needle body 12 is 3mm, the diameter of the head end of the conical section 2 is 3mm, the diameter of the bottom end is 6mm, the length is 5mm, the inner diameter of the spring 3 is 1mm, the outer diameter is 3mm, the length is 8mm, the inner diameter of the gasket 4 is 3.5mm, the outer diameter is 6mm, the thickness is 3mm, the needle body 1 comprises the inner needle body 11 and the outer needle body 12, the inner needle body 11 is embedded in the outer needle body 12 and is movably connected with the outer needle body 12;
the top end of the inner needle body 11 is a needle point 9, the needle point 9 is in a circular arc shape, and a convex clamping block 6 is arranged on the side surface of the inner needle body 11 close to the bottom;
This neotype prevent blood vessel damage's kirschner wire is in the in-process that uses, at first need drill out a shin bone passageway with this kirschner wire, 11 ejecting upwards of interior needle body, make needle point 9 stretch out from outer needle body 12's cavity 5, shin bone passageway can be drilled out to its sharp needle point 9, through the fixture block 6 on 11 surfaces of needle body in the slip after the use, with interior needle body 11 lapse, make needle point 9 embed into in the cavity 5 completely, prevent that needle point 9 from damaging the popliteal artery, cause the art internal hemorrhage, bring great risk for the operation.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a novel prevent vascular damage's kirschner wire, includes needle body (1), toper section (2), spring (3) and packing ring (4), needle body (1) is cylindrical, needle body (1) has one section toper section (2) by the tail end, spring (3) and packing ring (4) are all overlapped on needle body (1), and the bottom face fixed connection of the one end of spring (3) and toper section (2), and the other end is connected its characterized in that with packing ring (4): the needle body (1) comprises an inner needle body (11) and an outer needle body (12), and the inner needle body (11) is embedded in the outer needle body (12) and is movably connected with the outer needle body (12);
the top end of the inner needle body (11) is a needle point (9), the needle point (9) is arc-shaped, and a convex clamping block (6) is arranged on the side surface of the inner needle body (11) close to the bottom;
outer needle body (12) are provided with hollow cavity (5), the side that outer needle body (12) leaned on the bottom is provided with fluting (7), fixture block (6) set up in fluting (7), one side of fluting (7) is provided with a plurality of stopper (8), and stopper (8) are used for spacing fixture block (6).
2. The novel vascular injury prevention kirschner wire as set forth in claim 1, wherein: the position of the outer needle body (12) close to the needle point (9) is set to be an opening, and the other end of the outer needle body is set to be closed.
3. The novel vascular injury prevention kirschner wire as set forth in claim 1, wherein: the width between two adjacent limiting blocks (8) is not less than the width of the clamping block (6).
4. The novel vascular injury prevention kirschner wire as set forth in claim 1, wherein: the diameter of outer needle body (12) is 3mm, toper section (2) head end diameter is 3mm, and its bottom diameter is 6mm, and length is 5mm, the internal diameter of spring (3) is 1mm, and the external diameter is 3mm, and length is 8mm, packing ring (4) internal diameter is 3.5mm, and the external diameter is 6mm, and thickness is 3 mm.
5. The novel vascular injury prevention kirschner wire as set forth in claim 1, wherein: both ends of the outer needle body (12) are provided with openings, and the inner wall of the opening at the bottom is provided with threads for being in threaded connection with the other outer needle body (12).
6. The novel vascular injury prevention kirschner wire as set forth in claim 1, wherein: the needle body (1) is made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218138.9U CN214907947U (en) | 2020-12-28 | 2020-12-28 | Novel kirschner wire for preventing vascular injury |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218138.9U CN214907947U (en) | 2020-12-28 | 2020-12-28 | Novel kirschner wire for preventing vascular injury |
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| CN214907947U true CN214907947U (en) | 2021-11-30 |
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| CN202023218138.9U Active CN214907947U (en) | 2020-12-28 | 2020-12-28 | Novel kirschner wire for preventing vascular injury |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116172680A (en) * | 2023-04-26 | 2023-05-30 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
-
2020
- 2020-12-28 CN CN202023218138.9U patent/CN214907947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116172680A (en) * | 2023-04-26 | 2023-05-30 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
| CN116172680B (en) * | 2023-04-26 | 2023-12-15 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
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