Syringe tip cap with self-sealing filter

Details Syringe tip cap with self-sealing filter Syringe tip cap with self-sealing filter

1990-06-19

1992-06-30

Hindenburg, Max

Surgery

Truss

Pad

604190, 604199, 604403, 215DIG3, A61B 500

Patent

active

051254158

ABSTRACT:
A syringe tip cap and a method for purging air from a syringe-like container containing air and hazardous liquid. The cap contains a hydrophilic filter which, when dry, allows air to pass through the filter. When the air is purged from the syringe, liquid from the container is pushed or drawn to the filter. The filter expands when wetted, seals the cap, and prevents further fluid flow. A flow restrictor may be included within the cap to concentrate the flow to only a portion of the filter to prevent premature sealing of the filter.

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