CN219048761U - Puncture instrument tip structure - Google Patents
Puncture instrument tip structure Download PDFInfo
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- CN219048761U CN219048761U CN202223506986.9U CN202223506986U CN219048761U CN 219048761 U CN219048761 U CN 219048761U CN 202223506986 U CN202223506986 U CN 202223506986U CN 219048761 U CN219048761 U CN 219048761U
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- puncture
- cutting edge
- rod body
- protective
- movable protective
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Abstract
The utility model discloses a puncture instrument tip structure, which comprises a tip body and a movable protective structure; the front end of the tip body is provided with a conical puncture end and a cutting edge arranged at the outer side of the puncture end; the movable protective structure is arranged on the periphery of the puncture end, when the puncture is pressed by pressure, the cutting edge is exposed out of the movable protective structure, the puncture is carried out without being pressed by external force, and the cutting edge is positioned in the movable protective structure. The utility model has little damage to tissues.
Description
Technical Field
The utility model relates to the technical field of puncture instruments, in particular to a tip structure of a puncture instrument.
Background
Minimally invasive surgery has a growing popularity in clinical surgery, and a puncture outfit is a medical instrument necessary in minimally invasive surgery. When minimally invasive laparoscopic surgery begins, a doctor usually makes a small incision in the abdomen of a patient, then moves downwards while aligning the vertex of the puncture end with the left and right reciprocating rotation of the small incision, and the puncture cannula passes through the abdominal cortex of the patient by the puncture outfit. Currently, many of the needles on the market use a bladed needle, which is a large tissue hazard.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a puncture instrument tip structure with little damage to tissues.
In order to solve the technical problems, the utility model adopts the following technical scheme: a puncture instrument tip structure comprises a tip body and a movable protective structure; the front end of the tip body is provided with a conical puncture end and a cutting edge arranged outside the puncture end; the movable protective structure is arranged on the periphery of the puncture end, when the puncture is pressed by pressure, the cutting edge is exposed out of the movable protective structure, the puncture is carried out without being pressed by external force, and the cutting edge is positioned in the movable protective structure.
Further, the movable protective structure comprises protective baffles arranged at two sides of the cutting edge; the side wall of the puncture end is provided with a groove for accommodating the protective baffle; the bottom of the protective baffle is hinged with the puncture end, and the top of the protective baffle is connected with the puncture end through an elastic reset assembly.
Further, the elastic reset component comprises a sliding block arranged on the inner side of the top of the protective baffle; the sliding block is connected with the sliding groove on the inner side of the protective baffle in a sliding way; the sliding block is connected with the side wall of the groove through an elastic telescopic rod.
Further, the elastic telescopic rod comprises an inner rod body, a hollow outer rod body sleeved outside the inner rod body and a telescopic spring sleeved outside the inner rod body and the outer rod body; one end of the expansion spring is fixed on the spring seat at the end part of the inner rod body, and the other end of the expansion spring is fixed on the spring seat at the end part of the outer rod body.
Further, a plurality of protective baffles are arranged from top to bottom on two sides of the cutting edge.
The beneficial effects of the utility model are as follows: according to the utility model, the protective baffle is arranged, when the puncture needle passes through the part of the abdominal cortex of a patient, the protective baffle 31 of the part is ejected out of the groove under the action of the elastic reset component and is used for blocking the cutting edge, so that the damage of the cutting edge to the internal tissues of the abdominal cortex is avoided.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of a guard shield.
Fig. 3 is an enlarged view of a in fig. 2.
Fig. 4 is a schematic view of a guard pop-up.
Fig. 5 is a schematic structural diagram of embodiment 2.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in the following detailed description.
Referring to fig. 1-4, a tip structure of a puncture instrument according to the present utility model comprises a tip body and a movable protective structure 3; the front end of the tip body is provided with a conical puncture end 1 and a cutting edge 2 arranged outside the puncture end; the movable protective structure 3 is arranged on the periphery of the puncture end 1, when the puncture is pressed by pressure, the cutting edge 2 is exposed out of the movable protective structure, the puncture is not pressed by external force, and the cutting edge 2 is positioned in the movable protective structure.
The movable protective structure of the utility model comprises protective baffles 31 arranged at two sides of the cutting edge 2; the side wall of the puncture end 1 is provided with a groove 32 for accommodating the protective baffle 31; the bottom of the protective baffle 31 is hinged with the puncture end 1, and the top is connected with the puncture end 1 through an elastic reset assembly.
The elastic reset assembly of the utility model comprises a sliding block 41 arranged on the inner side of the top of the protective baffle 31; the sliding block 41 is connected with the sliding groove on the inner side of the protective baffle 31 in a sliding way; the sliding block 41 is connected with the side wall of the groove 32 through an elastic telescopic rod.
The elastic telescopic rod comprises an inner rod body 51, a hollow outer rod body 52 sleeved outside the inner rod body 51 and a telescopic spring 53 sleeved outside the inner rod body 51 and the outer rod body 52; one end of the expansion spring 53 is fixed on the spring seat at the end of the inner rod body 51, and the other end is fixed on the spring seat at the end of the outer rod body 52.
By arranging the protective baffle, when the puncture needle passes through the part of the abdominal cortex of the patient, as shown in fig. 4, the protective baffle 31 is ejected out of the groove under the action of the elastic resetting component and is used for blocking the cutting edge, so that the damage of the cutting edge to the internal tissues of the abdominal cortex is avoided.
The outer wall of the top of the protective baffle is arranged into an arc-shaped structure, so that the puncture needle can be conveniently taken out.
Example 2
As shown in fig. 5, a plurality of guard plates 31 are provided from top to bottom on both sides of the cutting edge 2 of the present utility model.
The embodiment is provided with a plurality of protective baffles 31 from top to bottom, the puncture needle penetrates through the part of the abdominal cortex of the patient, the protective baffles 31 of the part are ejected out of the grooves under the action of the elastic resetting component, the protective baffles 31 on two sides of the cutting edge block the population, and damage to the internal tissues of the abdominal cortex caused by the cutting edge of the part of the puncture needle penetrating through the abdominal cortex of the patient is avoided.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the utility model, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present utility model.
Claims (5)
1. A puncture instrument tip structure, characterized in that: comprises a tip body and a movable protective structure (3); the front end of the tip body is provided with a conical puncture end (1) and a cutting edge (2) arranged at the outer side of the puncture end; the movable protective structure (3) is arranged on the periphery of the puncture end (1), when the puncture is pressed by pressure in the puncture process, the cutting edge (2) is exposed out of the movable protective structure, the puncture is not pressed by external force, and the cutting edge (2) is positioned in the movable protective structure.
2. A lancing device tip structure according to claim 1, wherein: the movable protective structure comprises protective baffles (31) arranged at two sides of the cutting edge (2); the side wall of the puncture end (1) is provided with a groove (32) for accommodating the protective baffle (31); the bottom of the protective baffle (31) is hinged with the puncture end (1), and the top of the protective baffle is connected with the puncture end (1) through an elastic reset assembly.
3. A lancing device tip structure according to claim 2, wherein: the elastic reset component comprises a sliding block (41) arranged on the inner side of the top of the protective baffle (31); the sliding block (41) is connected with the sliding groove on the inner side of the protective baffle (31) in a sliding way; the sliding block (41) is connected with the side wall of the groove (32) through an elastic telescopic rod.
4. A lancing device tip structure according to claim 3, wherein: the elastic telescopic rod comprises an inner rod body (51), a hollow outer rod body (52) sleeved outside the inner rod body (51) and a telescopic spring (53) sleeved outside the inner rod body (51) and the outer rod body (52); one end of the expansion spring (53) is fixed on the spring seat at the end part of the inner rod body (51), and the other end of the expansion spring is fixed on the spring seat at the end part of the outer rod body (52).
5. A lancing device tip structure according to claim 1, wherein: a plurality of protective baffles (31) are arranged from top to bottom on two sides of the cutting edge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223506986.9U CN219048761U (en) | 2022-12-28 | 2022-12-28 | Puncture instrument tip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223506986.9U CN219048761U (en) | 2022-12-28 | 2022-12-28 | Puncture instrument tip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219048761U true CN219048761U (en) | 2023-05-23 |
Family
ID=86369356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223506986.9U Active CN219048761U (en) | 2022-12-28 | 2022-12-28 | Puncture instrument tip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219048761U (en) |
-
2022
- 2022-12-28 CN CN202223506986.9U patent/CN219048761U/en active Active
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