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Safety injector with injection needle automatically deflecting when shrinking

A technology for safety syringes and injection needles, applied in the field of safety syringes, can solve the problems of needle tip stabbing others, infection of medical staff, etc., and achieves the effect of simple manufacturing process and low cost of piston manufacturing

Active Publication Date: 2008-12-10
WUXI YUSHOU MEDICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the traditional syringe is injected, if the needle tip is stained with the blood of a patient with infectious or dangerous symptoms, medical staff, nurses and cleaning staff are all at risk of being infected. Even if there are no infectious bacteria, the needle tip of the injection needle will There is also a risk of stabbing others

Method used

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  • Safety injector with injection needle automatically deflecting when shrinking
  • Safety injector with injection needle automatically deflecting when shrinking
  • Safety injector with injection needle automatically deflecting when shrinking

Examples

Experimental program
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Embodiment Construction

[0017] See Figure 4 , the safety syringe in which the injection needle is automatically deflected when retracted includes: a syringe 1 and a needle seat 2, and the needle seat 2 is installed at the front of the syringe 1; 1. The syringe part 4 at the rear and the needle cover part 3 located at the front part of the syringe 1; the front part of the syringe part 4 contains a syringe inner chamber 5 for containing liquid medicine; The shoulder 7 between the cylinder part 4 and the needle cover part 3; and the needle cylinder rear flange 8 at the rear of the needle cylinder 1; Needle groove 9, and the T-shaped tail portion 10 positioned at the rear end of the needle holder 2; a piston 11 is slidably connected in the needle cylinder part 4; There is a front groove 12 communicating with the guide port 15; a rear groove 20 is set at the tail of the piston 11, and the front end 19 of the core rod 18 is connected in the rear groove 20 of the piston 11; the shoulder 7 can be placed on...

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Abstract

The invention relates to a medical injector, in particular to a safe injector in which an entry needle can deflect automatically when retraction. According to the proposal provided by the invention, the safe injector in which the pumping needle can deflect automatically when retraction comprises: a needle cylinder and a neilsbed, the neilsbed is arranged at the front part of the needle cylinder; the needle cylinder comprises a needle cylinder part located at the rear part of the needle cylinder and a needle guard part located at the front part of the needle cylinder; the front part in the inner of the needle cylinder part contains an inner cavity of the needle cylinder used for containing liquid medicine; a shoulder part which is arranged between the needle cylinder part and the needle guard part; and a rear flange of the needle cylinder which is located at the rear part of the needle cylinder; the characteristics are that: a first lug boss is formed which is bulgy and is formed on the front end wall in which a front groove is formed, and a second lug boss which is bulgy is arranged on the rear end wall in which a front groove is formed and the second lug boss is arranged on the diagonal line facing the first lug boss; after the T-shape tail part of the neilsbed enters into the front groove through the bottom of the leading port, the first lug boss and the second lug boss produce strength to force the T-shape tail part to decline; one-off use of the injector shall be ensured, thus avoiding across infection and injuring other persons accidentally.

Description

technical field [0001] The invention relates to a medical injector, in particular to a safety injector in which the injection needle is automatically deflected when retracted. Background technique [0002] After the traditional syringe is injected, if the needle tip is stained with the blood of patients with infectious or dangerous symptoms, medical staff, nurses and cleaning staff are all at risk of being infected. Even if there are no infectious bacteria, the needle tip of the injection needle will There is also a risk of stabbing others. Contents of the invention [0003] The object of the present invention is to design a safety syringe in which the injection needle is automatically deflected when retracting, so as to avoid cross-infection and accidental injury to others. [0004] According to the technical solution provided by the present invention, the safety syringe in which the injection needle is automatically deflected when retracted includes: a syringe and a nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315A61M5/34A61M5/32A61M5/178
Inventor 庄明忠
Owner WUXI YUSHOU MEDICAL APPLIANCES
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