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Bellows type disposable syringe

A syringe, a disposable technology, applied in the directions of syringes, hypodermic injection devices, infusion sets, etc., can solve the problems of contaminating the inner wall of the empty cylinder, foreign objects floating in the tail end, and bringing in foreign objects, etc., achieving low cost, ensuring no pollution, The effect of easy dispensing

Inactive Publication Date: 2006-09-06
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of foreign matter floating into the open tail of the current disposable syringe; the repeated twitching of the piston brings in foreign matter and pollutes the inner wall of the empty barrel

Method used

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  • Bellows type disposable syringe
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  • Bellows type disposable syringe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In Fig. 3, the radius of the piston (1) is transformed from 10mm to the radius of the piston (2) of 7mm, the piston (2) is extended by 10mm, and the piston handle (3) is temporarily removed (in order to put on the bellows structure for convenience).

[0018] In Figure 4, the bellows handle A (1) is a hollow circle structure, and the bellows handle B (2) is a hollow "+" character structure, and the specific size of the hollow "+" character depends on the junction of the modified piston and the piston shaft. Depending on the degree of fit, it can be determined with an impression. The side wall of the bellows body (3) is in the shape of a folding bellows and can be freely expanded and contracted.

[0019] In Fig. 5, for the syringe of the present invention, the piston (4) is pulled out, and the bellows structure (11) is put on, the bellows handle A (3) is integrated with the inner edge of the tail end of the hollow tube (2), and the bellows handle B ( 6) The junction of t...

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PUM

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Abstract

This is a bellows one-off syringe, which is made by recessing and prolonging current syringe, and making: through mould crank out cylinder, whose wall is recurrent lappingú”Execute bellow handles A and B, and A is a hollow cylinder, while B is hollow í‹+íŒ shaped, and they combine with the bellow body both extremities separately. Its mounting is: lap the bellow structure on plunger, the A extremity combines to hollow cylinder tail interior edge, while the B extremity combines to joint of the plunger and the plunger axis. Its main characteristic is that it adds a bellow structure, and it is named by the lapping sidewall--- bellows one-off syringe, and it can flex freely. It is mainly used to dispense drugs, especially when the quantity is large, it can ensure the medicine liquid unpolluted and reduce medicine-resource disease occurring, it is simple to execute and cost low.

Description

Technical field [0001] The invention relates to a disposable syringe. The design guarantees that the liquid medicine will not be polluted during dispensing. Background technique [0002] At present, the known syringe is made up of needle, empty cylinder, piston three parts. There are the following deficiencies in the opening of the tail end and the outside world: during dispensing, especially when the dispensing volume of intravenous infusion is large, the syringe often repeatedly inhales and injects 3-10 times to complete a dispensing. When the piston is pulled out, the hands of the medical staff are likely to touch the piston. When the piston is pushed in, it contacts the inner wall of the empty cylinder and contaminates it. If the medicine is sucked again and directly pollutes the medicine liquid, the foreign matter can also directly float into the inner wall of the empty cylinder. In order to prevent the hands of medical staff from touching the piston, the medical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/31A61M5/315
Inventor 解涵
Owner 解涵