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Disposable self-destructed syringe

A syringe and self-destruction technology, which is applied in the field of single-use self-destruction syringes, can solve the problems of inability to exhaust air and inconvenient operation by medical staff, and achieve the effects of reducing residual amount and being reliable and convenient to use.

Active Publication Date: 2009-05-06
WUXI YUSHOU MEDICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still shortcomings in clinical use. Since the exhaust was not designed at that time, the air drawn into the syringe barrel could not be exhausted, which brought great inconvenience to medical staff. Another disadvantage is the small-capacity immune syringe and insulin Syringe, which requires very little liquid remaining in the syringe, and requires the needle tip of the small-capacity syringe to be glued directly to the syringe barrel to reduce the residual amount

Method used

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  • Disposable self-destructed syringe
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  • Disposable self-destructed syringe

Examples

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0018] Referring to the accompanying drawings, the present invention includes a needle point 1, a cylinder body 2, a core rod 3, a non-return member 7 and a sealing plug 10, and the core rod 3 is provided with a ratchet groove 4, a return limiting step 5, and a mounting hole 6 and the repeated movement part 11 (respectively see Fig. 1, Fig. 2, Fig. 3), the non-return member 7 is provided with non-return stabs 8 and ratchets 9, and the non-return member 7 enters the return-limiting step 5 through the installation hole 6 during assembly, There are ratchets 9 against the back-limiting step 5, and then the sealing plug 10 is pushed into the bottom of the cylindrical body 2. (see accompanying drawing 1, figure 2).

[0019] When in use, the core rod 3 is drawn back to extract part of the liquid medicine, but the non-return member 7 cannot enter the ratchet groove 4, an...

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Abstract

The disposable self-destructed syringe includes a needle, a cylinder, a core rod, a ratchet slot, a back limiting step, a mounting hole, one back stopping part, a back stopping pike, a ratchet, a sealing stop, and a reciprocating part. The disposable self-destructed syringe has reliable convenient use and is self-destructed after once use.

Description

technical field [0001] The invention relates to a one-time use self-destruction syringe, which belongs to medical syringes. Background technique [0002] At present, the disposable aseptic syringes widely used in hospitals at home and abroad do not fully have the characteristics of disposable use due to their structure, and people only need to adjust the syringes slightly to reuse them. . For example, some self-destructing syringes known both at home and abroad mostly destroy the seal of the piston when the syringe injects medicinal liquid, so that the syringe can only be used once. But as long as the piston and the core rod are not pressed to the bottom when injecting (that is, as long as there is a little liquid medicine left), the piston cannot be damaged and can be used repeatedly. In order to overcome the above deficiencies, our company declared a utility model disposable self-destructing syringe to the State Intellectual Property Office on June 18, 2003. Application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/50A61M5/315
Inventor 冯忠
Owner WUXI YUSHOU MEDICAL APPLIANCES
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