초록 ▼

YA hand-operable dispenser for fluid medicaments is provided in a form which is suitable for implanting same within a human body which permits controlled and convenient dispensing of fluid medicament to a desired somewhat remote location within the body. Propelling assemblies and blocking assemblies

YA hand-operable dispenser for fluid medicaments is provided in a form which is suitable for implanting same within a human body which permits controlled and convenient dispensing of fluid medicament to a desired somewhat remote location within the body. Propelling assemblies and blocking assemblies are provided and positioned so that they cooperate with each other along a medicament flow channel within the device in order to provide a controlled dispensing of a unit dose of medicament to the desired remote location. The medicament flow channel includes a blocking assembly at its downstream end.

대표청구항 ▼

An implantable, manually operable dispenser for a fluid medicament, comprising; (a) a body member having reservoir means for storing a fluid medicament, said reservoir means having a flexible wall that expands and collapses as fluid medicament flows respectively into and out of the reservoir means;

An implantable, manually operable dispenser for a fluid medicament, comprising; (a) a body member having reservoir means for storing a fluid medicament, said reservoir means having a flexible wall that expands and collapses as fluid medicament flows respectively into and out of the reservoir means; (b) a supply port assembly on said body member, said supply port assembly being in fluid-passing communication with said reservoir means; (c) a connecting channel within said body member, said connecting channel having a section thereof that is in fluid-passing communication with said reservoir means and another section thereof that is in fluid-passing communication with a delivery tube outlet from said body member; (d) propelling means within said connecting channel for advancing fluid medicament in a downstream direction through said connecting channel toward said delivery tube outlet; (e) one-way blocking means within said connecting channel for permitting, in cooperation with activation of said propelling means, controlled fluid flow therethrough toward said delivery tube outlet, said one-way blocking means also being for preventing fluid flow therethrough toward said delivery tube outlet when said propelling means is not activated; and wherein said blocking means includes a diaphragm that is tensioned when there is no pressure differential thereacross and that sealingly engages a collar of the body member, and wherein said diaphragm has an aperture therethrough.