Piston cap and boot seal for a medication infusion pump

Details Piston cap and boot seal for a medication infusion pump Piston cap and boot seal for a medication infusion pump

A - Human Necessities

61

M

128/91

A61M 5/14 (2006.01) F04B 7/00 (2006.01) F04B 43/02 (2006.01) F16J 3/06 (2006.01)

Patent

CA 1319067

ABSTRACT OF THE DISCLOSURE A unitary piston cap and boot seal for use in a medication infusion system is disclosed which is mounted on a rigid piston contained in a cylinder disposed in a cassette. The piston cap and boot seal, which are made of a flexible, elastomeric material, effectively both form the pumping element disposed in the cylinder, and prevent contamination of the pump through use of a rolling seal. The device may be sterilized by gas, since a tortuous path affording passage to gas is included in the retaining skirt mounted around the outer diameter of the pump cylinder.

584386

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