JP3208190U - Safety syringe - Google Patents

Abstract

The present invention provides a safety syringe that can improve efficiency and safety without the need for a user to attach a syringe safety cap separately when a tube covers the syringe needle at the same time as the injection is completed. SOLUTION: A pusher 10 and an injection cylinder 20 are provided. First and second pushing portions are provided at both ends of the pusher, and a cover body 14 is provided at the first pushing portion 11, and a cover is provided. A rod 141 extends from the bottom of the body. A fixing part is provided at the end of the rod body and is coupled to the connection part 111. A hollow tube body 112 is provided on the other end of the connection part, a position restriction hole is provided in the connection part, and a step portion is provided in the position restriction hole. An elastic component 13 is placed on the rod body, and the rod body is inserted into the position limiting hole to bring the fixed component into contact with the stepped portion. An accommodation space 21 is provided inside the syringe barrel, and a protruding hollow fixing portion 23 is provided on the bottom surface of the syringe barrel. An injection needle 24 is attached to the fixed portion, and the tube body is longer than the injection needle. The second pusher 12 of the pusher is housed in the housing space, and the syringe barrel is located in the tube. [Selection] Figure 1

Description

  The present invention relates to a syringe, and more particularly, to a safety syringe that can improve efficiency and safety by covering a syringe needle at the same time as injection is completed.

  Injection of drugs in a syringe is a kind of invasive procedure, and it is necessary to pierce the skin of the human body with the injection needle. Therefore, after using a general syringe, body fluid is placed on or inside the injection needle. Often remains. For this reason, many medical staff or medical waste disposal staff may puncture the needle of the syringe barrel due to improper treatment of the syringe needle after the injection of the syringe barrel, or even AIDS.・ Infected with blood infections such as pulmonary tuberculosis [TB].

  In addition, the general syringe barrel is provided with a syringe cap (lid) on the syringe needle, which not only protects the syringe needle from damage and contamination before use, but also uses the syringe barrel. Then, by covering the outside of the injection needle with the injection needle cap, the staff involved in medical treatment or medical waste treatment is prevented from being stabbed by the injection needle, and the staff involved in medical treatment or medical waste treatment To prevent infection. However, when the medical staff tries to cover the used injection needle with the injection needle cap, since the opening diameter of the injection needle cap is small, it is difficult to insert the injection needle into the injection needle cap. Misalignment and carelessness may cause errors that may prevent the needle from being inserted at an accurate position, resulting in a needle stick accident. Therefore, it can be said that it is potentially exposed to the risk of disease infection.

  In addition to the above-described drawbacks, the conventional needle cap has a drawback in that after the medical staff finishes the injection, the needle cap must be picked up and mounted on the needle. Both have room for improvement.

  In view of the above-mentioned drawbacks, the present invention can improve efficiency and safety without the need for a user to separately attach a syringe needle safety cap by covering the syringe needle at the same time as the injection is completed. An object is to provide a safety syringe.

  In order to achieve the above-mentioned object, the safety syringe barrel of the present invention includes a pusher and a syringe barrel. A first pushing portion and a second pushing portion are provided at both ends of the pusher, respectively. The first pushing portion is provided with a cover body, and a rod body is provided extending from the bottom surface of the cover body. A fixing part is provided at the end of the rod and is coupled to the connection part. A hollow tube body is provided at the other end of the connection component, and a position limiting hole communicating with the outside is provided inside the connection component. A step portion is provided in the position limiting hole. An elastic component is fitted on the rod, and the rod is inserted into the position limiting hole, and the fixed component and the stepped portion are brought into contact with each other. In addition, the inside of the syringe barrel is provided with a storage space, and convex edges are provided on both sides of the top surface of the syringe barrel, and the hollow fixing portion protrudes from the bottom surface of the syringe barrel. Is provided. An injection needle is attached to the fixed portion. The length of the tubular body is larger than the length of the injection needle. The second pushing portion of the pusher is housed in the housing space. The syringe barrel is located in the tube.

It is a perspective exploded view of the present invention. It is the bird's-eye view of this invention, and a partial sectional view. It is the schematic of the latching state of this invention. It is the schematic of the separation state of this invention. FIG. 5 is a perspective external view based on FIG. 4. It is the schematic of the use condition of this invention. It is the schematic of the injection state of this invention.

  Please refer to FIG. 1 and FIG. The safety syringe barrel 1 of the present invention includes a first pusher 10 and a syringe barrel 20. Each part is described below.

  A first pusher 11 and a second pusher 12 are provided at both ends of the pusher 10, respectively. The first pushing portion 11 is provided with a cover body 14, and a rod body 141 is provided extending from the bottom surface of the cover body. The elastic component 13 is fitted on the rod body 141, a fixing component 1411 is provided at the end of the rod body 141, and the rod body 141 is coupled to the connection component 111. A convex locking portion 113 is provided on the connection component 111.

  A position restriction hole 1111 communicating with the outside is provided in the connection component 111, and a staircase portion 1112 is provided in the position restriction hole 1111. The rod body 141 is inserted into the position limiting hole 1111 and the rod body 141 is prevented from falling off by bringing the fixing component 1411 into contact with the stepped portion 1112. A hollow tube body 112 is provided at the other end of the connection component 111, and a stopper portion 1121 is provided at one end surface of the tube body 112. On the stopper portion 1121, a through hole 1122 corresponding to the fixing portion 23 of the syringe barrel 20 is provided.

  A storage space 21 is provided inside the syringe barrel 20, and convex edges 22 are provided on both sides of the top surface of the syringe barrel 20, and a hollow fixing portion that protrudes from the bottom surface of the syringe barrel 20. 23 is provided. An injection needle 24 is attached to the fixing portion 23. The length of the tube body 112 is larger than the length of the injection needle 24. The second pushing portion 12 of the pusher 10 is housed in the housing space 21. The syringe barrel 20 is located in the tube body 112. In this embodiment, since the length of the syringe barrel 20 is larger than the length of the tube body 112 and the diameter of the syringe barrel 20 is smaller than the diameter of the tube body 112, the syringe barrel 20 is provided in the tube body 112. Is possible.

  Please refer to FIG. In the initial state of the safety syringe 1 of the present invention, since the locking portion 113 and the convex edge 22 are locked and fixed, the pusher 10 does not move. Therefore, when using, it is necessary to turn the cover body 14 first. Since the cover body 14 is coupled to the first pushing portion 11 of the pusher 10, the cover body 14 rotates together with the first pushing portion 11, whereby the locking portion 113 is moved from the convex edge 22. Detach (see FIGS. 4 and 5). Please refer to FIG. 2 and FIG. After the locking portion 113 is disengaged from the convex edge 22, the pusher 10 becomes movable, and blood collection or drug collection can be performed. When the pusher 10 is moved, the fixed component 1411 of the rod 141 and the staircase portion 1112 come into contact with each other, and the connecting component 111 moves in conjunction with this, so that the elastic component 13 is pulled and the position limiting hole 1111 is pulled. No longer leaves.

  Please refer to FIG. When the first pushing portion 11 of the pusher 10 is pressed at the time of injection, the rod body 141 enters the position limiting hole 1111, so that the injection operation is more stable. Further, since the connecting part 111 and the first pushing portion 11 are coupled, the tube body 112 moves together with the pusher 10 and gradually covers the outer periphery of the injection needle 24. Further, when the pusher 10 is further pushed and the front end of the tube body 112 and the stopper portion 1121 come into contact with the skin of the human body, the tube body 112 is contracted backward by the elastic part 13 so that all the remaining liquid medicine is injected. Will come to be. When the injection needle 24 is removed, the tube body 112 is not obstructed by the human body and thus elastically extends forward, so that the injection needle 24 is completely positioned within the tube body 112. Therefore, the injection needle 24 does not pierce a person, and the safety purpose is achieved.

  Please refer to FIG. After the injection is completed, the cover body 14 is turned to lock and fix the locking portion 113 and the convex edge 22, and the tube body 112 moves toward one end of the first pushing portion 11 by returning to the state before use. Will not move. Therefore, the risk of a needle stick accident when recapturing a conventional syringe barrel is completely avoided, and safety is greatly improved.

DESCRIPTION OF SYMBOLS 1 Safety injection cylinder 10 Pusher 11 1st pushing part 111 Connection part 1111 Position restriction hole 1112 Stair part 112 Tubing body 1121 Stopper part 1122 Through-hole 113 Locking part 12 Second pushing part 13 Elastic part 14 Cover body 141 Bar Body 1411 Fixed part 20 Syringe 21 Storage space 22 Convex edge 23 Fixed part 24 Injection needle

Claims (4)

A safety syringe barrel composed of a pusher and a syringe barrel,
A first pusher and a second pusher are provided at both ends of the pusher,
The first pushing portion is provided with a cover body,
The bottom surface of the cover body extends to form a rod body,
At the end of the rod body, a fixing part is provided, and the rod body is coupled with a connection part,
A hollow tube is provided at the other end of the connection component, and a position limiting hole communicating with the outside is provided inside the connection component,
A step portion is provided in the position restriction hole,
On the rod body, an elastic part is fitted, and the rod body is inserted into the position limiting hole so as to bring the fixed part and the stepped portion into contact with each other,
A housing space is provided inside the syringe barrel, and convex edges are provided on both sides of the top surface of the syringe barrel, and a protruding hollow fixing portion is provided on the bottom surface of the syringe barrel. Is provided,
An injection needle is attached to the fixed portion,
The length of the tubular body is larger than the length of the injection needle,
A second pushing portion of the pusher is housed in the housing space;
A safety syringe barrel, wherein the syringe barrel is located in the tube. Furthermore, a convex locking portion is provided on one side of the connecting part of the pusher,
Accordingly, the cover body is rotated, and the connecting part is rotated in conjunction with the rotation of the cover body, whereby the locking portion and the convex edge are locked and fixed. Safety syringe. Furthermore, a stopper portion is provided on one end surface of the tubular body,
The safety syringe barrel according to claim 1, wherein a through hole corresponding to the fixed portion of the syringe barrel is provided on the stopper portion. Furthermore, the length of the syringe barrel is larger than the length of the tube body,
The safety syringe barrel according to claim 1, wherein a diameter of the syringe barrel is smaller than a diameter of the tubular body.

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