CN211068051U - Safety injection needle with needle point capable of being repeatedly stretched - Google Patents

Abstract

The utility model discloses a needle point can relapse flexible safety syringe needle, including cylinder, needle tubing seat and needle tubing cover, the needle tubing seat sets up in the cylinder, the needle tubing is fixed on the needle tubing seat, the needle tubing cover sets up the front end of cylinder and with the syringe needle parallel arrangement of needle tubing the one end of needle tubing seat is provided with an elastomeric element, elastomeric element floats and sets up on the needle tubing seat, the lateral part of needle tubing seat is provided with and is used for controlling the flexible switch part of elastomeric element. The beneficial effects of the utility model reside in that: the utility model discloses an adopt elastomeric element on the cylinder, can reduce the process that medical personnel used the protective cap repeatedly, avoided the nurse by the probability that the needle point pricked by mistake, alleviateed nurse's working strength simultaneously. The needle tube can be pushed out or pulled back at any time according to the requirement, and the operation is simple and convenient.

Description

A safety injection needle with a repeatedly retractable needle tip

technical field

The utility model relates to the field of medical equipment, in particular to a safety injection needle with a repeatedly retractable needle tip.

Background technique

Clinically, nurses use an injection needle to suck the liquid into the syringe, and often leave it for a few minutes, and then proceed to the next step of injection or dispensing. This time period is only a few minutes. If the protective cap is not covered, the injection needle is very difficult. It is easy to be contaminated, and the naked injection needle can easily stab the nurse or others, so the general nurse will re-cover the protective cap, which will definitely increase the workload of the nurse.

Utility model content

The technical problem to be solved by the utility model is: aiming at the problems of existing injection needles that are easily polluted, easy to stab nurses or others, cover with protective caps, increase workload, etc., a safe injection with a needle tip that can be retracted repeatedly is provided. needle to solve the above problem.

The technical problem solved by the present utility model can be realized by the following technical solutions:

A safety injection needle with a retractable needle tip, comprising a needle barrel, a needle tube, a needle tube seat and a needle tube cover, the needle tube seat is arranged in the needle tube, the needle tube is fixed on the needle tube seat, and the needle tube cover It is arranged at the front end of the needle tube and parallel to the needle of the needle tube, and is characterized in that an elastic member is arranged at one end of the needle tube seat, and the elastic member is floating on the needle tube seat, and the needle tube The side part of the seat is provided with a switch part for controlling the expansion and contraction of the elastic part.

In a preferred embodiment of the present invention, the needle cylinder is further provided with a limiting device for limiting the expansion and contraction of the elastic member.

In a preferred embodiment of the present invention, the limiting device is a limiting block, and the limiting block is fixed on the inner wall of the needle cylinder.

In a preferred embodiment of the present invention, the elastic member is a stretch hose.

In a preferred embodiment of the present invention, the switch component includes a button and a locking member disposed on the button, one end of the button is connected to the needle tube seat, and the other end passes through the needle tube to the Extending outward, the locking piece is matched and connected with the locking piece arranged on the inner wall of the syringe.

In a preferred embodiment of the present invention, the tail end of the syringe is provided with a luer connector for connecting with a standard syringe.

Due to the adoption of the above technical solutions, the beneficial effects of the present invention are: the use of elastic components on the needle barrel of the present invention can reduce the process of repeated use of protective caps by medical workers, avoid the probability of the nurse being accidentally stabbed by the needle tip, and at the same time Reduce the workload of nurses. The needle can be pushed out or pulled back at any time as needed, which is simple and convenient.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a retracted state of a safety injection needle with a repeatedly retractable needle tip according to the present invention.

FIG. 2 is a schematic structural diagram of a safety injection needle with a repeatedly retractable needle tip of the present invention in the extended state.

Detailed ways

In order to make it easy to understand the technical means, creation features, achievement goals and effects realized by the present invention, the present invention is further described below.

Referring to FIG. 1 to FIG. 2, a safety injection needle with a retractable needle tip includes a needle barrel 10, a needle tube 11, a needle tube seat 12 and a needle tube cover 13. The needle tube seat 12 is arranged in the syringe barrel 10, and the needle tube 11 is fixed on the On the needle tube seat 12 , the needle tube 11 and the needle tube seat 12 are bonded by medical adhesive. An elastic member 20 is provided at one end of the needle hub 12 , and the elastic member 20 is preferably a stretching tube. The elastic member 20 is floated on the needle tube base 12 , and a switch member 30 for controlling the elastic member 20 to expand and contract is provided on the side of the needle tube base 12 . The rear end of the syringe 10 in this embodiment is provided with a luer connector 14 for connection with a standard syringe. Luer connector 14 uses a standard 6:100 connector.

The switch component 30 includes a button 31 and a locking member 32, the locking member 32 is arranged on the button 31, one end of the button 31 is connected with the needle tube seat 12, and the other end of the button 31 extends outward through the needle cylinder 10, and the locking member 32 is connected to the needle tube seat 12. The locking pieces 33 arranged on the inner wall of the syringe 10 are connected in a matched manner. The button 31 is provided with a spring 34 , and the spring 34 is connected with the needle hub 12 . When the button 31 is pressed, the locking member 32 is separated from the locking member 33 by the spring 34 on the button 31 to move.

A limiting device 40 is also provided on the needle tube 10 , and the limiting device 40 is used to limit the expansion and contraction of the elastic member 20 and can fix the moving distance of the needle tube 11 . The limiting device 40 is preferably a limiting block, and the limiting block 40 is fixed on the inner wall of the syringe 10 .

The working principle of the present utility model is as follows:

When in use, the user needs to press and hold the button 31 on the side to push, and the needle tube 11 on the needle tube holder 12 is extended out of the syringe barrel 10 through the elastic member 20 to suck the medicinal liquid or inject. In addition, the user can let go. The button 31 can limit the limited distance of the needle tube 11 through the limiting device 40. When it needs to be temporarily placed or used, the user simultaneously presses the button 31 on the side and pulls the needle tube 11 on the needle tube holder 12 back into the needle cannula 13. , Complete the injection, facilitate the recycling of medical waste, and protect the environment.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a safe syringe needle that needle point can stretch out and draw back repeatedly, includes cylinder, needle tubing seat and needle tubing cover, the needle tubing seat sets up in the cylinder, the needle tubing is fixed on the needle tubing seat, the needle tubing cover sets up the front end of cylinder and with the syringe needle parallel arrangement of needle tubing, its characterized in that the one end of needle tubing seat is provided with an elastomeric element, elastomeric element floats and sets up on the needle tubing seat, the lateral part of needle tubing seat is provided with the switch part that is used for controlling elastomeric element and stretches out and draws back.

2. The safety syringe with a needle point capable of being repeatedly retracted and extended as claimed in claim 1, wherein the barrel is further provided with a limiting device for limiting the retraction of the elastic component.

3. The safety injection needle with the needle point capable of being repeatedly retracted and extended as claimed in claim 2, wherein the limiting device is a limiting block, and the limiting block is fixed on the inner wall of the needle cylinder.

4. The safety needle with a retractable needle point as claimed in claim 1, wherein the elastic member is a tensile tube.

5. The needle-tip-retractable safety needle of claim 1, wherein the switch member comprises a button having one end connected to the needle holder and the other end extending outwardly through the barrel, and a locking member provided on the button, the locking member being cooperatively connected to a locking member provided on an inner wall of the barrel.

6. The safety syringe with a needle point capable of being repeatedly retracted and extended as claimed in claim 1, wherein the rear end of the syringe barrel is provided with a luer connector for connecting with a standard syringe.

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