Implantable hand-operable dispensers for fluid medicaments
First Claim
Patent Images
1. 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.
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Abstract
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.
77 Citations
19 Claims
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1. An implantable, manually operable dispenser for a fluid medicament, comprising;
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19)
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7. An implantable, manually operable dispenser for a fluid medicament, comprising;
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(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 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 propelling means includes plunger means for reciprocatingly opening and closing a chamber of the body member through which said plunger means is mounted.
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15. An implantable, manually operable dispenser for a fluid medicament, comprising;
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(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; (f) a plurality of blocking means are provided so as to be both upstream and downstream of said propelling means, wherein said blocking means downstream of the propelling 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 (g) means are provided for transmitting fluid pressure within said reservoir means to said tensioned diaphragm and for sealingly engaging said tensioned diaphragm onto its said collar.
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17. An implantable, manually operable dispenser for a fluid medicament, comprising;
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(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 (f) another controlled-flow blocking means positioned within a segment of the connecting channel that is between said propelling means and said reservoir means, wherein said blocking means between the propelling means and the reservoir 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.
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Specification