Medical local film capsule and producing method thereof

A production method and film coating technology, which are applied in the directions of cleaning methods using liquids, sealing with plugs, cleaning methods and utensils, etc., can solve the complex polytetrafluoroethylene film manufacturing process and the difficulty in realizing the composite polytetrafluoroethylene film. Inconvenient promotion and use, to achieve reliable biosafety and biostability, reduce surface insoluble particles, and facilitate promotion and use

Inactive Publication Date: 2008-03-26
HUBEI HUAQIANG HIGH TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Sticking polyester film requires manual operation, which is cumbersome and increases the chance of human body contamination of drugs; the production process of composite polytetrafluoroethylene film is complicated, the cost of rubber plug is high, the price is expensive, it is inconvenient to popularize and use, and it is difficult to realize rubber plugs with complex shapes (such as Freeze-dried rubber stopper) compounded with polytetrafluoroethylene film on the surface

Method used

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  • Medical local film capsule and producing method thereof

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Embodiment Construction

[0017] The specific structure of the present invention is: a medicinal film-coated rubber stopper, comprising a rubber stopper 1, and a coating film 2 of a uniform polychlorinated p-xylylene film is deposited and coated on the surface of the rubber stopper 1 in contact with the medicine. The medical film-coated rubber stopper 1 is made of natural rubber, isoprene rubber, or halogenated butyl rubber.

[0018] The production method of the present invention is as follows: the formed rubber plug 1 is pretreated, and the stains and lubricating oil on the surface of the rubber plug are removed by soaking with a solvent, or the stains and lubricating oil on the surface of the rubber plug are removed by ultrasonic cleaning. remove.

[0019] The rubber plug 1 after surface pretreatment is fixed on the coating fixture, and then placed in the coating equipment, and a layer of partial coating film 2 is applied by deposition.

[0020] The present invention adopts a vacuum chemical vapor d...

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Abstract

The present invention relates to a medicinal locally film-coated rubber plug and its production method. The structure of said rubber plug is characterized by that on the surface of rubber plug which is contacted with medicine a layer of polychloroparaxylene film is uniformly deposited and coated. Said medicinal film-coated rubber plug material is natural rubber, isoprene rubber and halogenated butyl rubber. Said rubber plug has reliable biological safety and biological stability.

Description

technical field [0001] The invention relates to a medicinal film-coated rubber stopper, in particular to a partial film-coated rubber stopper of a polychlorinated p-xylylene film capable of protecting drug stability. The rubber stopper is suitable for water injections, powder injections, injections and freeze-dried medicines, and the invention also relates to a production method of the local film-coated rubber stopper. Background technique [0002] After more than ten years of practice, butyl rubber plugs have been recognized by the medical community for their reliable biological properties, good airtight performance, and stable chemical properties. Butyl rubber plugs have developed rapidly in the world. Rubber stoppers made of natural rubber have been replaced. [0003] Some problems have also been found after the use of butyl rubber stoppers, especially powder injections sensitive to some chemical and biological activities such as cefotiam hydrochloride; some infusion pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J1/14B65D39/00B08B3/04B08B3/12B05D1/00
Inventor 段朝阳王继柏贺良冬褚振华
Owner HUBEI HUAQIANG HIGH TECH CO LTD
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