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Syringe capable of being automatically locked after use

An automatic locking and syringe technology, applied in the field of medical devices, can solve problems such as health threats to operators, and achieve the effects of avoiding virus cross-infection, preventing secondary use, and ensuring safe use.

Inactive Publication Date: 2017-01-04
方亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Contaminated syringes also pose a very serious threat to the health of operators who need to avoid being injured by contaminated syringes

Method used

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  • Syringe capable of being automatically locked after use
  • Syringe capable of being automatically locked after use
  • Syringe capable of being automatically locked after use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the syringe that is automatically locked after use is composed of a syringe 1, a needle bar 2, a plunger 3, and the like. The front end of the syringe 1 is provided with a needle mounting seat 4, and the center of the needle mounting seat has a through liquid hole, the plunger 3 is connected to the front end of the needle bar 2 and placed in the syringe 1, and a boss is provided on the inner wall of the front end of the syringe 5. A groove 6 is set on the outer wall of the plunger, and when the plunger reaches the front end of the syringe, the boss on the inner wall of the syringe is engaged with the groove on the outer wall of the plunger. The part where the end of the needle bar is connected with the needle bar support is tapered for easy extraction. The surface of the boss facing the plunger is an inclined arc structure, and the surface of the boss facing the needle mounting seat is a plane. The plung...

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PUM

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Abstract

The invention provides a syringe capable of being automatically locked after use and belongs to the technical field of medical instruments. The syringe comprises a needle drum, a needle rod, a plunger and a needle installation base at the front end of the needle drum. A through liquid passing hole is formed in the center of the needle installation base, and the plunger is connected at the front end of the needle rod and placed in the needle drum. The syringe is characterized in that a boss is arranged on the inner wall of the front end of the needle drum, a groove is formed in the outer wall of the plunger, and when the plunger reaches the front end of the needle drum, the boss on the inner wall of the needle drum is matched with the groove in the outer wall of the plunger in a matched mode. The side, facing the plunger, of the boss is of an inclined arc structure, and the side, facing the needle installation base, of the boss is a plane. The plunger is a rubber plunger, a sealing ring is disposed between the plunger and the needle drum, and the sealing ring is embedded in a sealing groove in the outer wall of the plunger. The syringe is reasonable and simple in structure, easy to produce and low in cost. The syringe cannot be used again after being used once, it is guaranteed that use is safe, and it is avoided that the syringe is used repeatedly to cause virus cross infection.

Description

technical field [0001] The invention relates to a structure of a syringe, in particular to a disposable syringe that can be automatically locked to ensure that it cannot be used again to ensure hygiene and safety, and belongs to the technical field of medical devices. Background technique [0002] A syringe is a medical device that injects medicine into the patient's body to achieve the effect of diagnosis and treatment. Before the medical staff injects the patient, the medicine is first introduced into the syringe, and then the medicine is injected into the patient through the needle on the syringe. There are many potential dangers in traditional syringes, and when they are used improperly, they will cause very serious harm and adverse effects to people's health. The structure of traditional syringes cannot avoid repeated use. When the syringe injects medicine into a patient, the patient's blood, residual medicine, bacteria, viruses, or other pathogenic substances may rema...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178A61M5/50A61M5/31
Inventor 方亮
Owner 方亮