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Two-chamber prefilled syringe and its prefilling method

A technology for pre-filled syringes and syringes, applied in the field of pharmaceutical packaging, which can solve the problems of complex and cumbersome operations, easy pollution of injections, high production and use costs, and achieve the effects of avoiding pollution, simple structure, and low production and use costs

Active Publication Date: 2006-05-24
HUNAN CHINASUN PHARMA MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use method of the above-mentioned commonly used syringes, on the one hand, is complicated and cumbersome to operate, and pollution is likely to occur during the preparation of the injection; on the other hand, the medicine and the diluted solution are packaged in different containers, and the production and use costs are relatively high.

Method used

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  • Two-chamber prefilled syringe and its prefilling method
  • Two-chamber prefilled syringe and its prefilling method
  • Two-chamber prefilled syringe and its prefilling method

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Embodiment Construction

[0043] Such as figure 1 , 2 As shown, the dual-chamber prefilled syringe of the present invention includes a syringe 1 composed of a larger cylinder upper section 12 and a smaller cylinder lower section 13, and the syringe 1 is located at the bottom of one end of the cylinder lower section 13 A cone-shaped connector 11 is formed to connect the injection needle. The center of the connector 11 is provided with a liquid outlet 111 communicating with the inner cavity of the injection barrel 1. The liquid outlet 111 is sealed by a detachable seal. In this embodiment The detachable seal adopts a frangible rod 10 that is easy to be broken, and the frangible rod 10 that is easy to be broken is connected with the connector 11, and the liquid outlet hole 111 of the connector 11 is blocked to make it in a closed state, and it is easy to The junction of the folding bar 10 and the connecting head 11 is the breaking point of the easy-breaking bar 10 . The easy-to-break bar 10 and the conn...

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Abstract

The present invention relates to a double-chamber precharged injector and its precharging method. It includes an injection tube formed from upper section of tube body whose tube diameter is larger and lower section of tube body whose tube diameter is smaller, one end of the injection tube is connected with connecting head, an other end is opened. In the injection tube are set an upper piston and a lower piston which are respectively placed in the upper section and lower section of tube body and seal-combined with correspondent inner wall of said tube body. The interior of injector tube body can be divided into a lower cavity chamber and an upper cavity chamber by means of two pistons, the injection medicine and diluent solution are respectively held in the above-mentioned two closed cavity chambers. Besides, said invention also provides its concrete operation method and steps.

Description

technical field [0001] The invention belongs to the field of medicine packaging, in particular to a prefilled syringe. Background technique [0002] At present, the syringes commonly used in various medical institutions are syringes that are injected immediately after aspirating the liquid, and there are also some prefilled syringes that are prefilled with medicinal liquid by pharmaceutical factories. Prefilled syringes on the market are single-chambered and contain only one liquid drug, and are usually used for higher-value drugs. Due to the different physical and chemical properties of drugs, many drugs are packaged and stored in a dry state to extend the storage period. Therefore, during the injection process in the hospital, the diluted solution required for this type of drug must be extracted with a syringe, injected into a container containing the dry drug, mixed and shaken to form an injection liquid, and then injected into the human body with the same syringe. [0...

Claims

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Application Information

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IPC IPC(8): A61M5/178A61M5/31
Inventor 刘祥华刘燕
Owner HUNAN CHINASUN PHARMA MASCH CO LTD
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