CN219250189U

CN219250189U - Sampling needle protection device

Info

Publication number: CN219250189U
Application number: CN202222508799.8U
Authority: CN
Inventors: 许宝芝; 刘涛; 董元洪; 王茜; 董慧
Original assignee: Delutong Shijiazhuang Biotechnology Co ltd
Current assignee: Delutong Shijiazhuang Biotechnology Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-06-27
Anticipated expiration: 2032-09-21

Abstract

The utility model provides a sampling needle protection device, which comprises a connecting base with a pipe orifice at one end and a protection base fixed at the other end of the connecting base, wherein the sampling needle protection device also comprises a rubber plug, the rubber plug is arranged at one end of the protection base far away from the connecting base, a clamping part is arranged on the rubber plug, and the clamping part is matched with a receiving part on the protection base so as to clamp the rubber plug in the protection base; the connecting part is a protruding block formed on the outer wall of the connecting base, and the protruding block can slide along a set track on the inner wall of the protecting base, and the connecting base is clamped on the protecting base. According to the sampling needle protection device, the rubber plug can be fixed on the protection base through the clamping part, operations such as flanging and gluing are not needed during production, connection between the connection base and the protection base is convenient, the process is remarkably simplified, and industrial production is facilitated.

Description

Sampling needle protection device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sampling needle protection device.

Background

In medical appliances, the protection device is mostly used for being matched with the heparin cap so as to protect the pillow part of the injection needle or the sampling needle inserted on the heparin cap. The heparin cap imitates the effect that the blepharm is far away from the sealing tube of the venous indwelling needle, and is generally matched with an intravascular indwelling catheter (such as a venous indwelling needle and a central venous catheter) which is used for a long time, and can infuse liquid medicine into a blood vessel and extract blood and liquid so as to reduce the medical cost of patients and improve the working efficiency of nurses.

In the prior art, the sampling needle protection device is generally and directly connected to the heparin cap in use, but the sealing rubber plug in the protection device in the prior art is made of materials with small friction coefficient, the sealing rubber plug can always block the front end hole of the sampling needle protection device in the repeated puncturing process, and the sampling needle protection device is not fallen off or shifted, otherwise, the using effect is affected.

In order to ensure the position reliability of the sealing plug in the sampling needle protecting device, in the production and manufacturing process at the present stage, the sealing plug and the end cover part of the sampling needle protecting device are often required to be injected with glue or flanging is carried out for fixing, so that the production process is complex and time-consuming.

Disclosure of Invention

In view of the above, the present utility model is directed to a sampling needle protection device, so as to reduce assembly complexity and production cost and ensure use effect.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a sampling needle protection device, includes that one end has the connection base of mouth of pipe, and fixes the protection base of connection base other end, sampling needle protection device still includes:

the rubber plug is arranged at one end, far away from the connecting base, of the protecting base, and is provided with a clamping part which is matched with a receiving part on the protecting base so as to clamp the rubber plug in the protecting base;

the connecting part is a protruding block formed on the outer wall of the connecting base, and the protruding block can slide along a set track on the inner wall of the protecting base and enables the connecting base to be clamped on the protecting base.

Further, the clamping portion is a boss formed on the outer surface of the rubber plug, the boss is provided with a guide inclined surface which is inclined outwards, the rubber plug is guided into the receiving portion through the guide inclined surface, and the end face of the boss is abutted with the inner wall of the receiving portion.

Further, the receiving portion is a groove formed on the inner wall of the protection base, and the shape of the groove is matched with that of the boss.

Furthermore, a slide way is arranged on the inner wall of the protection base, the slide way is L-shaped and forms the set track, and the slide way is provided with an inlet for the protruding block to enter.

Further, the bumps are symmetrically arranged along the radial direction of the connection base.

Further, the inner wall of the end part of the slideway far away from the inlet is provided with an arc-shaped bulge, the protection base is connected with the connection base, and the lug is clamped between the arc-shaped bulge and the end part of the slideway.

Further, the inlet has guide surfaces with gradually increasing widths on both sides to guide the projection into the slideway.

Further, a plurality of anti-skid grooves are arranged on the outer surface of the connecting base, and the anti-skid grooves and the connecting base are integrally formed.

Compared with the prior art, the utility model has the following advantages:

according to the sampling needle protection device, the rubber plug can be fixed on the protection base through the clamping part, flanging, gluing and other operations are not needed during production, and the structure between the connection base and the protection base is simple, so that the connection assembly is convenient, the process is obviously simplified, and the industrial production is facilitated.

In addition, the setting of guide inclined plane is convenient for guide the plug to receiving part in to the terminal surface and the inner wall butt of receiving part of boss can prevent that the plug from moving in the use repeatedly, thereby ensure sampling needle protection device's result of use. In addition, the inner wall of the protection base is provided with a slideway for sliding the convex block, so that the whole structure of the sampling needle protection device is simple, and the assembly connection of the protection base and the connection base is convenient.

In addition, the lug sets up to connect radial two of base, can improve the stability of connection base connection. In addition, the arc-shaped protrusions can clamp the protruding blocks at the end parts of the slide ways, so that the protruding blocks are not easy to move, and the connection stability of the connection base and the protection base is guaranteed. In addition, the multichannel antiskid groove has been arranged to the surface of connection base, is convenient for put forth effort to medical personnel is connected sampling needle protection device to keep somewhere on the needle, thereby improves sampling needle protection device's practicality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model, wherein the words of front and back, top and bottom, etc. are used to indicate relative position and are not intended to limit the utility model unduly. In the drawings:

FIG. 1 is a schematic view of the whole structure of a sampling needle protection device according to an embodiment of the present utility model;

FIG. 2 is a front view of a sampling needle protection device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a rubber plug according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view from the perspective A-A of FIG. 2;

fig. 5 is an enlarged view of a portion B in fig. 4.

Reference numerals illustrate:

1. a connecting base; 10. a pipe connecting port; 11. an anti-skid groove; 12. a bump; 2. a protection base; 20. a groove; 21. a slideway; 210. arc-shaped bulges; 22. a through hole; 3. a rubber plug; 30. a boss; 300. a guide slope; 301. an end face.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The embodiment relates to a sampling needle protection device, which does not need operations such as flanging, gluing and the like during production, has obviously simplified process and is beneficial to industrial production.

In the whole structure, the sampling needle protection device comprises a connecting base 1 with a connector orifice 10 at one end and a protection base 2 fixed at the other end of the connecting base 1. In addition, the sampling needle protection device also comprises a rubber plug 3 arranged at one end of the protection base 2 far away from the connection base 1, wherein a clamping part is arranged on the rubber plug 3, and the clamping part is matched with a receiving part on the protection base 2 so as to clamp the rubber plug 3 in the protection base 2; the connection part is a bump 12 formed on the outer wall of the connection base 1, and the bump 12 can slide along a set track on the inner wall of the protection base 2, and enables the connection base 1 to be clamped on the protection base 2.

Based on the above overall design, an exemplary structure of the sampling needle protection device of the present embodiment is shown in fig. 1 and 2, in the present embodiment, the aforementioned protection base 2 has a through hole 22 for injection, and the rubber plug 3 can block the through hole 22 after being located in the protection base 2, so as to ensure the safety of the protection base 2.

On this basis, the structure of the rubber stopper 3 will be specifically explained below with reference to fig. 3, specifically, the rubber stopper 3 is cylindrical, and the outer diameter of the rubber stopper 3 is preferably the same as the inner diameter of the protection base 2, so that the assembly is facilitated, or the outer diameter of the rubber stopper 3 may be larger than the inner diameter of the protection base 2. The connection mode between the rubber plug 3 and the protection base 2 can be in an assembled mode, namely the protection base 2 and the rubber plug 3 are produced separately and then assembled together, or the rubber plug 3 is in an injection molding mode and is directly connected with the protection base 2, and the connection mode of the two can be selected according to actual production conditions.

In addition, the clamping portion is a boss 30 formed on the outer surface of the rubber plug 3, the boss 30 is provided with a guiding inclined surface 300 which is inclined outwards, the rubber plug 3 is guided into the receiving portion through the guiding inclined surface 300, and an end face 301 of the boss 30 is abutted against the inner wall of the receiving portion. It should be noted that, referring to fig. 3 and 4, the guiding inclined plane 300 on the boss 30 is inclined downward, and the diameter of the guiding inclined plane 300 gradually increases from top to bottom, so that the guiding inclined plane 300 is convenient for guiding the rubber plug 3 into the receiving portion when the rubber plug 3 and the protection base 2 can be assembled.

In this embodiment, as a preferred embodiment, the end face 301 of the boss 30 and the end face 301 of the rubber plug 3 are arranged in parallel, so that when the boss 30 is clamped in the receiving portion, the end face 301 can prevent the rubber plug 3 from falling off or shifting in the process of repeated use, thereby ensuring that the rubber plug 3 can always block the through hole 22, ensuring the position reliability of the rubber plug 3 in the sampling needle protection device, avoiding operations such as flanging, gluing and the like during production, remarkably simplifying the process, and being beneficial to industrial production.

As shown in connection with fig. 4, the receiving portion is a groove 20 formed on the inner wall of the protection base 2, and the shape of the groove 20 is set to match the boss 30. It can be understood that, since the rubber plug 3 has a certain deformation effect, the shape of the groove 20 is matched with the boss 30, when the rubber plug 3 is assembled, the boss 30 on the rubber plug 3 deforms, and when the boss 30 reaches the groove 20, the shape of the rubber plug 3 is recovered, so that the position reliability and the tightness of the rubber plug 3 are ensured, and the stability of the position of the sampling needle is ensured.

In this embodiment, a slide way 21 is provided on the inner wall of the protection base 2, the slide way 21 is L-shaped and forms a set track, and the slide way 21 has an entrance for the bump 12 to enter. Wherein the projections 12 are rectangular blocks and the projections 12 are preferably arranged on the outer wall of the end of the connection base 1 close to the protection base 2. The slide way 21 is composed of a vertical slide way 21 and a horizontal slide way 21, wherein a section communicated with the inlet is the vertical slide way 21, and the top end of the vertical slide way 21 is the horizontal slide way 21 vertical to the vertical slide way 21. Of course, the slideway 21 is not limited to the above-described L-shape.

In addition, the entrance is located at one end of the protection base 2 far away from the through hole 22, and the entrance penetrates through the end face 301 of the protection base 2, the bump 12 enters from the entrance and is in a clamping state after sliding along the slideway 21, the bump 12 and the slideway 21 have simple structures, the manufacture is convenient, and the assembly connection of the protection base 2 and the connection base 1 is also convenient. In order to increase the connection stability of the protection base 2 and the connection base 1, the projections 12 are arranged symmetrically in the radial direction of the connection base 1 as a preferred embodiment.

In this embodiment, as shown in fig. 5, an arc-shaped protrusion 210 is disposed on the inner wall of the end of the slideway 21 away from the inlet, the protection base 2 is connected with the connection base 1, and the protrusion 12 is clamped between the arc-shaped protrusion 210 and the end of the slideway 21. It should be noted that the arc-shaped protrusion 210 is located at the end of the horizontal slideway 21 away from the vertical slideway 21, and preferably, the arc-shaped protrusion 210 is located at a distance of the width of the bump 12 from the end of the horizontal slideway 21 away from the vertical slideway 21. The arc-shaped protrusion 210 can clamp the protruding block 12 at the end part of the slideway 21, so that the protruding block 12 is not easy to move, and the connection stability of the connection base 1 and the protection base 2 is ensured.

Furthermore, to facilitate the coupling assembly of the coupling base 1 and the protection base 2, both sides of the entrance have guide surfaces of gradually increasing width to guide the projection 12 into the slideway 21. The arrangement of the guide surface can improve the fault tolerance rate, and is convenient for medical staff to assemble the connecting base 1 and the protecting base 2.

As preferable in this embodiment, the ring connection base 1 is provided with a plurality of anti-slip grooves 11 on the outer surface, and the anti-slip grooves 11 are integrally formed with the connection base 1. The multichannel anti-skid grooves 11 are arranged on the outer surface of the connecting base 1, so that the processing and the manufacturing are convenient, the force of medical staff is also convenient, the medical staff can conveniently connect the sampling needle protection device to the indwelling needle, and the practicability of the sampling needle protection device is improved.

The sampling needle protection device of this embodiment, plug 3 can be fixed on protection base 2 through joint portion, need not turn-ups, beat operations such as glue during production, and connect simple structure between base 1 and the protection base 2, the connection assembly of being convenient for, the technology is showing and is simplifying, is favorable to industrial production to can improve sampling needle protection device's practicality.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A sampling needle protection device comprising a connection base (1) with a nozzle (10) at one end, and a protection base (2) fixed at the other end of the connection base (1), characterized in that the sampling needle protection device further comprises:

the rubber plug (3) is arranged at one end, far away from the connecting base (1), of the protecting base (2), a clamping part is arranged on the rubber plug (3), and the clamping part is matched with a receiving part on the protecting base (2) so as to clamp the rubber plug (3) in the protecting base (2);

the connecting part is a protruding block (12) formed on the outer wall of the connecting base (1), and the protruding block (12) can slide along a set track on the inner wall of the protecting base (2) and enable the connecting base (1) to be clamped on the protecting base (2).

2. The sampling needle protection device of claim 1, wherein:

the clamping part is a boss (30) formed on the outer surface of the rubber plug (3), the boss (30) is provided with a guide inclined surface (300) which is inclined outwards, the rubber plug (3) is guided into the receiving part through the guide inclined surface (300), and the end face (301) of the boss (30) is abutted with the inner wall of the receiving part.

3. The sampling needle protection device of claim 2, wherein:

the receiving part is a groove (20) formed on the inner wall of the protection base (2), and the shape of the groove (20) is matched with that of the boss (30).

4. The sampling needle protection device of claim 1, wherein:

the inner wall of the protection base (2) is provided with a slide way (21), the slide way (21) is L-shaped and forms the set track, and the slide way (21) is provided with an inlet for the convex block (12) to enter.

5. The sampling needle protection device of claim 4, wherein:

the projections (12) are symmetrically arranged along the radial direction of the connection base (1).

6. The sampling needle protection device of claim 4, wherein:

the inner wall of the end part of the slideway (21) far away from the inlet is provided with an arc-shaped bulge (210), the protection base (2) is connected with the connection base (1), and the lug (12) is clamped between the arc-shaped bulge (210) and the end part of the slideway (21).

7. The sampling needle protection device of claim 4, wherein:

the inlet has guide surfaces of progressively increasing width on both sides to guide the lugs (12) into the ramp (21).

8. The sampling needle protection device of any one of claims 1 to 7, wherein:

a plurality of anti-skid grooves (11) are arranged on the outer surface of the connecting base (1), and the anti-skid grooves (11) and the connecting base (1) are integrally formed.