CN204655679U - A kind of self-locking disposable injector - Google Patents

Abstract

Translated fromChinese

一种自锁式一次性注射器，包括有设在针筒内的推杆，推杆前部套有密封胶塞，针筒前端有限位装置；本实用新型的限位装置在推杆向针筒前端移动时，向限位槽移动，当推杆超过限位槽后，限位装置在弹簧的作用下弹出，限制推杆再次拉出，防止注射器的二次使用而导致的传染疾病；具有结构简单，安全性高的特点。

A self-locking disposable syringe, including a push rod in the syringe, the front part of the push rod is covered with a sealing rubber plug, and the front end of the syringe is provided with a stopper; When the front end moves, it moves toward the limit groove. When the push rod exceeds the limit groove, the limit device pops up under the action of the spring, restricting the push rod from being pulled out again, preventing infectious diseases caused by the secondary use of the syringe; it has a structure Simple, high security features.

Description

Translated fromChinese

一种自锁式一次性注射器A self-locking disposable syringe

技术领域technical field

本实用新型属于医疗器械技术领域，具体涉及一种自锁式一次性注射器。The utility model belongs to the technical field of medical instruments, in particular to a self-locking disposable syringe.

背景技术Background technique

现有的一次性注射器,大多是用完后采取物理手段进行销毁，需要使用者在用完后将注射器进行销毁，但是，这样就会给不法分子有可趁之机，将用过的注射器进行二次利用，从而致使各种病原体的传播，给人们的生活带来很多隐形的忧患。Most of the existing disposable syringes are destroyed by physical means after they are used up, requiring users to destroy the syringes after they are used up, but this will give lawbreakers an opportunity to dispose of the used syringes The secondary use leads to the spread of various pathogens and brings many invisible troubles to people's lives.

发明内容Contents of the invention

为了克服上述现有技术的不足，本实用新型的目的是提供一种自锁式一次性注射器，防止注射器的二次使用而导致的传染疾病，具有结构简单，安全性高的特点。In order to overcome the disadvantages of the above-mentioned prior art, the purpose of this utility model is to provide a self-locking disposable syringe to prevent infectious diseases caused by the secondary use of the syringe, which has the characteristics of simple structure and high safety.

为实现上述目的，本实用新型采用的技术方案是：一种自锁式一次性注射器，包括有设在针筒内的推杆，推杆前部套有密封胶塞，针筒前端有限位装置。In order to achieve the above purpose, the technical solution adopted by the utility model is: a self-locking disposable syringe, including a push rod arranged in the syringe, the front part of the push rod is covered with a sealing rubber plug, and the front end of the syringe is limited. .

所述的限位装置由弹簧与限位柱及限位槽组成，限位槽设在针筒上，限位槽内设有限位柱，限位柱后部设有弹簧。The limiting device is composed of a spring, a limiting column and a limiting groove, the limiting groove is arranged on the needle cylinder, the limiting column is arranged in the limiting groove, and the rear part of the limiting column is provided with a spring.

所述限位装置的数量为两个，两个限位装置对称设置在所述针筒上。There are two limiting devices, and the two limiting devices are symmetrically arranged on the syringe.

本实用新型的有益效果是：The beneficial effects of the utility model are:

采用本技术方案后，使注射器失去二次使用的机会，推杆将药液推出后，限位装置将卡住推杆，致使其无法再次拉出使用，大大减少了传染疾病的传播，消除了人们的安全隐患。After adopting this technical scheme, the syringe loses the chance of secondary use. After the push rod pushes out the liquid medicine, the limit device will block the push rod, so that it cannot be pulled out for use again, which greatly reduces the spread of infectious diseases and eliminates the people's safety hazards.

附图说明Description of drawings

图1为本实用新型一种自锁式一次性注射器的结构图。Fig. 1 is a structural diagram of a self-locking disposable syringe of the present invention.

图中，1针筒，2推杆，3限位槽，4弹簧，5限位柱，6胶塞。In the figure, 1 syringe, 2 push rod, 3 limit slot, 4 spring, 5 limit column, 6 rubber stopper.

具体实施方式Detailed ways

下面结合附图对本实用新型的结构原理和工作原理作进一步说明。Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are further described.

参见图1，一种自锁式一次性注射器，包括有设在针筒1内的推杆2，推杆前部套有密封胶塞6，针筒前端有限位装置。Referring to Fig. 1 , a self-locking disposable syringe includes a push rod 2 disposed in a syringe 1, a sealing rubber plug 6 is covered at the front of the push rod, and a stopper is provided at the front end of the syringe.

所述的限位装置由弹簧4与限位柱5及限位槽3组成，限位槽设在针筒1上，限位槽内设有限位柱5，限位柱5后部设有弹簧4。The limiting device is composed of a spring 4, a limiting column 5 and a limiting groove 3, the limiting groove is arranged on the syringe 1, a limiting column 5 is arranged in the limiting groove, and a spring is arranged at the rear of the limiting column 5. 4.

所述限位装置的数量为两个，两个限位装置对称设置在所述针筒上。There are two limiting devices, and the two limiting devices are symmetrically arranged on the syringe.

本发明的限位装置在推杆向针筒前端移动时，向限位槽移动，当推杆超过限位槽后，限位装置在弹簧的作用下弹出，限制推杆再次拉出，从而达到自锁目的。本发明的限位装置在推杆向针筒前端移动时，向限位槽3移动，当推杆2与胶塞6的交接处超过限位槽后，限位装置在弹簧的作用下弹出，限制推杆再次拉出，从而达到自锁目的。The limit device of the present invention moves toward the limit groove when the push rod moves toward the front end of the syringe, and when the push rod exceeds the limit groove, the limit device pops up under the action of the spring to limit the push rod to be pulled out again, thereby achieving Self-locking purpose. The limiting device of the present invention moves toward the limiting groove 3 when the push rod moves to the front end of the syringe, and when the intersection of the push rod 2 and the rubber plug 6 exceeds the limiting groove, the limiting device pops up under the action of the spring, Limit the push rod to be pulled out again, so as to achieve the purpose of self-locking.

Claims (2)

Translated fromChinese

1.一种自锁式一次性注射器，包括有设在针筒内的推杆，其特征在于，推杆前部套有密封胶塞，针筒前端有限位装置；所述的限位装置由弹簧与限位柱及限位槽组成，限位槽设在针筒上，限位槽内设有限位柱，限位柱后部设有弹簧。1. A self-locking disposable syringe, comprising a push rod located in the syringe, characterized in that the front portion of the push rod is covered with a sealing rubber plug, and the front end of the syringe has a limiter; the limiter consists of The spring is composed of a limit post and a limit groove, the limit groove is arranged on the needle cylinder, a limit post is arranged in the limit groove, and a spring is arranged at the rear of the limit post.2.根据权利要求1所述的自锁式一次性注射器，其特征在于，所述限位装置的数量为两个，两个限位装置对称设置在所述针筒上。2. The self-locking disposable syringe according to claim 1, wherein there are two limiting devices, and the two limiting devices are symmetrically arranged on the syringe.