US PATENT SUBCLASS 604 / 89
.~.~.~ Closure or barrier between compartments moved to permit mixing

Current as of: June, 1999
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604 /   HD   SURGERY

19  DF  MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.) {7}
48  DF  .~ Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin {9}
82  DF  .~.~ Means for intermixing liquid with solid or different liquid {4}
89.~.~.~ Closure or barrier between compartments moved to permit mixing {2}
90  DF  .~.~.~.~> Closure moved, expanded, or flexed by force transmitted by liquid
91  DF  .~.~.~.~> Closure moved by relative movement between closure and separate protruding member

DEFINITION

Classification: 604/89

Closure or barrier between compartments moved to permit mixing:

(under subclass 82) Subject matter including a sealing element which is displaced from its sealing position between separate storage spaces to permit flow of a material therebetween for the purpose of blending or, in the case of a solid in a liquid.