CN218685570U

CN218685570U - Pull-barrel type syringe needle anti-pricking hand syringe

Info

Publication number: CN218685570U
Application number: CN202221832426.XU
Authority: CN
Inventors: 武琼; 武凯丽; 武书亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-17
Filing date: 2022-07-17
Publication date: 2023-03-24
Anticipated expiration: 2032-07-17

Abstract

The utility model relates to a pull cylinder type needle anti-pricking syringe, which comprises a syringe and a needle, wherein a sleeve seat of the needle is coaxially and detachably connected with the end of the syringe; the end ring, the connecting ring and the folding pull cylinder are also included; the connecting ring is positioned at the end head of the needle cylinder, and the end ring is movably connected with the connecting ring through the folding pull cylinder; the end ring and the connecting ring are both in a ring shape, the folding pull cylinder is in a cylindrical barrel shape, and the end ring, the connecting ring and the folding pull cylinder are coaxially arranged; an inner anti-puncturing wall is arranged on the inner side of the end ring; the needle head is positioned at the inner side of the folding pull cylinder. The utility model relates to a hand syringe is prevented stinging by slide formula syringe needle can be after accomplishing the injection operation, and the slide is pulled open at will to the free hand, shelters from and protects the syringe needle formation, avoids the syringe needle to sting the bad phenomenon of hand in recovery and processing procedure, can not shelter from the cylinder formation to the cost is lower, is fit for popularizing and applying.

Description

Pull-barrel type syringe needle anti-pricking syringe

Technical Field

The utility model relates to a medical injector structure, concretely relates to hand-pricking preventing syringe with pull cylinder type needle.

Background

A medical syringe is a device for injecting a medical liquid into a blood vessel or the subcutaneous space of a patient. The medical injector is disposable, and can be used as medical waste to be recycled and treated uniformly after being used.

When the injector is used, the needle head protective cap needs to be detached. After the injection operation is completed, the needle protecting cap is often not fitted over the needle due to the possibility of needle stick.

Syringes lacking a needle protection cap present a risk of the needle pricking the hand during the recovery process. The application numbers are: 202020435504.7, the announcement date is: 2021-02-09, entitled "an anti-pricking hand needle head transfusion system", which discloses: "a prevent stinging hand syringe needle transfusion system, includes syringe needle and transfer line, the fixed tip that sets up at the transfer line of syringe needle, the fixed cover of one end that the transfer line surface is close to the syringe needle is equipped with a ring section of thick bamboo, the surface of a ring section of thick bamboo is provided with the spring catch, and the surface cover of a ring section of thick bamboo is equipped with the sleeve, first circular slot has been seted up to the one end that telescopic internal surface is close to the syringe needle place, the second circular slot has been seted up to the telescopic internal surface other end, first circular slot and second circular slot are on same straight line, and have seted up the sliding tray between first circular slot and the second circular slot, the first circular slot is adjacent to the technical scheme who offers first inclined plane" in the one end of second circular slot.

Although the above proposal can solve the problem of needle pricking to a certain extent, the sleeve can shield the infusion tube, so that medical staff cannot observe the injection amount of the liquid medicine; and the structure that sleeve, ring section of thick bamboo, spring catch are constituteed, the part quantity that corresponds is more, and its manufacturing cost is higher, is unfavorable for extensive popularization and application.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the design is an injector with a pull cylinder type needle for preventing hand puncture, which can pull the pull cylinder open at will after injection operation is completed, shield and protect the needle, avoid the bad phenomenon that the needle punctures the hand in the recovery and treatment process, avoid the shielding of the needle cylinder, and have lower cost and suitable popularization and application.

In order to achieve the above object, the present invention provides the following technical solutions:

a pull-barrel type needle anti-pricking syringe comprises a needle cylinder and a needle, wherein a sleeve seat of the needle is coaxially and detachably connected with the end of the needle cylinder; the end ring, the connecting ring and the folding pull cylinder are also included; the connecting ring is positioned at the end head of the needle cylinder, and the end ring is movably connected with the connecting ring through the folding pull cylinder; the end ring and the connecting ring are both in a ring shape, the folding pull cylinder is in a cylindrical barrel shape, and the end ring, the connecting ring and the folding pull cylinder are coaxially arranged; an inner anti-puncturing wall is arranged on the inner side of the end ring; the needle head is positioned at the inner side of the folding pull cylinder.

Preferably, the connecting ring and the needle cylinder are coaxially arranged, and the connecting ring is detachably connected with the end of the needle cylinder.

Preferably, the folding pull cylinder can be folded and pulled along the central axis direction thereof; when the folding pull cylinder is completely pulled open, the needle head is completely positioned at the inner side of the folding pull cylinder.

Preferably, the folding pull cylinder is made of plastic; the inner stab-resistant wall is arranged coaxially with the end ring.

Preferably, the inner anti-prick wall is located in particular inside the folding pull cylinder, is annular and has a diameter smaller than the diameter of the end ring.

The utility model has the advantages that: the utility model provides a hand syringe is prevented stinging by slide type syringe needle, carries out structural improvement to common medical syringe, sets up end ring, go-between and folding slide, can accomplish injection operation back, the folding slide is pulled open at will, folding slide and end ring can form sheltering from and protecting to the syringe needle, under the condition that the syringe needle protective cap lacked, avoids the bad phenomenon that the syringe needle stabbed the hand in recovery and processing procedure, eliminates the potential safety hazard, can not form sheltering from to the cylinder, and the cost is lower, be favorable to extensive popularization and application.

Drawings

Fig. 1 is a cross-sectional view of the folding pull cylinder of the pull cylinder type syringe needle anti-pricking hand syringe in the overall structure under the folding state.

Fig. 2 is a partial schematic view of the distal end of the barrel of the structure shown in fig. 1.

Fig. 3 is a cross-sectional view of the whole structure of the folding slide of the slide type syringe needle anti-pricking syringe of the present invention in the pulled state.

FIG. 4 is a partial schematic view of the distal end of the barrel of the structure shown in FIG. 3.

The reference numbers in the figures: 1. a needle cylinder; 2. a needle head; 3. a sleeve seat; 4. an end ring; 5. a connecting ring; 6. folding the sleeve; 7. an inner stab-resistant wall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 4, a pull-barrel type needle anti-pricking syringe comprises a barrel 1 and a needle 2, wherein a sleeve seat 3 of the needle 2 is coaxially and detachably connected with the end of the barrel 1; the end ring 4, the connecting ring 5 and the folding pull cylinder 6 are also included; the connecting ring 5 is positioned at the end of the needle cylinder 1, the end ring 4 is movably connected with the connecting ring 5 through a folding pull cylinder 6, and the folding pull cylinder 6 can be folded as shown in a state of figure 1 and can also be unfolded as shown in a state of figure 3; the end ring 4 and the connecting ring 5 are both in a ring shape, the folding pull cylinder 6 is in a cylindrical barrel shape, the end ring 4, the connecting ring 5 and the folding pull cylinder 6 are coaxially arranged, and the end ring 4 is used for supporting the tail end of the folding pull cylinder 6 and also used for blocking the needle point of the needle head 2 when the folding pull cylinder 6 is bent under stress so as to avoid puncture injury of the needle point; the inner side of the end ring 4 is provided with an inner puncture-proof wall 7, and the inner puncture-proof wall 7 is used for blocking the needle point of the needle head 2 when the folding pull cylinder 6 is bent under stress, so that the protection effect is ensured; the needle head 2 is positioned on the inner side of the folding pull cylinder 6, and the folding pull cylinder 6 can shield the needle head 2, so that protection is realized.

The connecting ring 5 is arranged coaxially with the needle cylinder 1, the connecting ring 5 is detachably connected with the end of the needle cylinder 1, and the connecting ring 5 can be fixed with the needle cylinder 1 through common connecting modes such as clamping, threaded screwing and the like.

The folding pull cylinder 6 can be folded and pulled along the central axis direction thereof, corresponding to the state shown in fig. 1 and 3; when the folding pull cylinder 6 is completely pulled open, the needle head 2 is completely positioned at the inner side of the folding pull cylinder 6, so that the needle tip protection effect of the needle head 2 is ensured, and the pricking prevention is realized.

The folding pull cylinder 6 is made of plastic, specifically polyethylene; the inner stab-resistant wall 7 is arranged coaxially with the end ring 4.

The inner puncture-proof wall 7 is specifically positioned on the inner side of the folding pull cylinder 6, the inner puncture-proof wall 7 is in a circular ring shape, the diameter of the inner puncture-proof wall 7 is smaller than that of the end ring 4, and if the folding pull cylinder 6 is bent under stress, the needle point of the needle head 2 does not poke the end ring 4, and then pokes the inner puncture-proof wall 7 to form blocking, so that the protection effect is ensured.

The utility model discloses a theory of operation does:

when the injector is used, the folding pull cylinder 6 is in the initial state of the folding state shown in fig. 1 and fig. 2, and in the folding state, the needle 2 is coaxial with the folding sleeve 6 but protrudes out of the folding sleeve 6, so that the normal injection operation of the needle penetrating into a specific position of skin is not influenced;

when the injection is finished, the end ring 4 is held by hand, and is pulled in a direction away from the needle cylinder 1, the folding pull cylinder 6 is extended to form the postures shown in fig. 3 and 4, the length of the folding pull cylinder 6 is greater than that of the needle 2, the needle 2 is completely positioned in the folding pull cylinder 6, and the end ring 4 and the inner puncture-proof wall 7 are positioned at the extending part of the needle 2; in this state, the folding pull cylinder 6 can block and protect the needle head 2, so as to avoid the needle head 2 from pricking hands; when the folding pull cylinder 6 is stressed and bent, the needle point of the needle head 2 is just in contact with the inner wall of the end ring 4 or the inner puncture-proof wall 7, so that the needle head 2 is prevented from puncturing hands;

when the folding pull cylinder 6 is pulled by holding the end ring 4 by hand, the initial position of the end ring 4 is close to the end of the needle cylinder 1 and is far away from the needle point of the needle 2, so that the risk of puncture does not exist.

The above examples are provided for further illustration of the present invention, but do not limit the present invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A pull cylinder type needle head anti-pricking syringe comprises a needle cylinder (1) and a needle head (2), wherein a sleeve seat (3) of the needle head (2) is coaxially and detachably connected with the end of the needle cylinder (1); the method is characterized in that: the end ring (4), the connecting ring (5) and the folding pull cylinder (6) are also included; the connecting ring (5) is positioned at the end head of the needle cylinder (1), and the end ring (4) is movably connected with the connecting ring (5) through the folding pull cylinder (6); the end ring (4) and the connecting ring (5) are both in a circular ring shape, the folding pull cylinder (6) is in a cylindrical barrel shape, and the end ring (4), the connecting ring (5) and the folding pull cylinder (6) are coaxially arranged; an inner stab-resistant wall (7) is arranged on the inner side of the end ring (4); the needle head (2) is positioned at the inner side of the folding pull cylinder (6).

2. The pulling barrel type needle anti-pricking syringe of claim 1, wherein: the connecting ring (5) and the needle cylinder (1) are coaxially arranged, and the connecting ring (5) is detachably connected with the end of the needle cylinder (1).

3. The pulling barrel type needle anti-pricking syringe of claim 2, wherein: the folding pull cylinder (6) can be folded and pulled along the direction of the central axis thereof; when the folding pull cylinder (6) is completely pulled open, the needle (2) is completely positioned at the inner side of the folding pull cylinder (6).

4. A pull-barrel needle anti-prick hand syringe according to claim 3, characterized in that: the folding pull cylinder (6) is made of plastic; the inner stab-resistant wall (7) is arranged coaxially with the end ring (4).

5. The pulling barrel type needle prick prevention syringe according to claim 4, characterized in that: the inner puncture-proof wall (7) is specifically positioned on the inner side of the folding pull cylinder (6), and the inner puncture-proof wall (7) is annular and has a diameter smaller than that of the end ring (4).