Fluid delivery device with bolus injection site
First Claim
1. A fluid delivery apparatus comprising:
- (a) a fluid delivery assembly having an outlet for delivering fluid from the apparatus, said fluid delivery assembly including;
(i) a base having a fluid passageway in communication with said outlet;
(ii) a stored energy means comprising at least one distendable membrane cooperating with said base to define a fluid reservoir in communication with said fluid passageway of said base; and
(iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said fluid passageway; and
(b) a fill assembly interconnected with said fluid delivery assembly for filling said reservoir, said fill assembly comprising;
(i) a container assembly including;
a. a container having a fluid chamber; and
b. means movable within said fluid chamber of said container for urging fluid from said fluid chamber; and
(ii) an adapter assembly receivable within said receiving chamber for interconnecting said container with said fluid delivery assembly, said adapter assembly comprising a hollow housing for telescopically receiving a part of said container of said container assembly and including a second end;
(c) delivery means in communication with said fluid reservoir for delivering fluid from said reservoir outwardly of the device; and
(d) bolus injection means in communication with said delivery means for providing a bolus volume of fluid to said delivery means.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel, conformable ullage made of yieldable materials which uniquely conform to the shape of the elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction. Additionally, in one form of the invention, the apparatus includes a novel fill assembly for controllably filling the reservoirs of the device in the field.
150 Citations
25 Claims
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1. A fluid delivery apparatus comprising:
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(a) a fluid delivery assembly having an outlet for delivering fluid from the apparatus, said fluid delivery assembly including; (i) a base having a fluid passageway in communication with said outlet; (ii) a stored energy means comprising at least one distendable membrane cooperating with said base to define a fluid reservoir in communication with said fluid passageway of said base; and (iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said fluid passageway; and (b) a fill assembly interconnected with said fluid delivery assembly for filling said reservoir, said fill assembly comprising; (i) a container assembly including; a. a container having a fluid chamber; and b. means movable within said fluid chamber of said container for urging fluid from said fluid chamber; and (ii) an adapter assembly receivable within said receiving chamber for interconnecting said container with said fluid delivery assembly, said adapter assembly comprising a hollow housing for telescopically receiving a part of said container of said container assembly and including a second end; (c) delivery means in communication with said fluid reservoir for delivering fluid from said reservoir outwardly of the device; and (d) bolus injection means in communication with said delivery means for providing a bolus volume of fluid to said delivery means. - View Dependent Claims (2, 3, 4, 5)
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6. A fluid delivery apparatus comprising:
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(a) a fluid delivery assembly having an outlet for delivering fluid from the apparatus, said fluid delivery assembly including; (i) a base having a fluid passageway in communication with said outlet; (ii) a stored energy means comprising at least one distendable membrane cooperating with said base to define a fluid reservoir in communication with said fluid passageway of said base; and (iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said fluid passageway; and (b) a fill assembly interconnected with said fluid delivery assembly for filling said reservoir, said fill assembly comprising; (i) a container assembly including; a. a container having a body portion, a fluid chamber, and first and second open ends; b. closure means for sealably closing said first end of said container; and c. a plunger telescopically movable within said container from a first location proximate said first open end to a second spaced apart location; and (ii) an adapter assembly receivable within said receiving chamber, said adapter assembly comprising a hollow housing having a first open end for telescopically receiving a part of said body portion of said container of said container assembly and including a second end; (c) delivery means in communication with said fluid reservoir for delivering fluid from said reservoir outwardly of the device; and (d) bolus injection means in communication with said delivery means for providing a bolus volume of fluid to said delivery means. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A fluid delivery apparatus comprising:
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(a) a fluid delivery assembly having an outlet for delivering fluid from the apparatus, said fluid delivery assembly including; (i) a base having a fluid passageway in communication with said outlet of the apparatus; (ii) a conformable mass overlaying said base for forming in conjunction therewith a reservoir having a fluid port in communication with said fluid passageway; (iii) a cover connected to said base, said base having a receiving chamber interconnected with said fluid passageway; (iv) a stored energy means for exerting forces on said means defining a conformable ullage, said stored energy means comprising at least one distendable membrane superimposed over said conformable mass, said membrane being distendable by forces imparted thereon by said means defining a conformable ullage in response to fluids introduced into said reservoir, said forces establishing internal stresses within said distendable membrane, said stresses tending to return said distendable membrane toward a less distended configuration; and (v) bolus injection means comprising an injection site formed in said base and accessible through said cover for delivering a bolus dose of medication into said outlet; (b) a fill assembly interconnected with said fluid delivery assembly for filling said reservoir, said fill assembly comprising; (i) a container assembly including; a. a container having a body portion, a fluid chamber, and first and second open ends; b. closure means for sealably closing said first end of said container; and c. a plunger telescopically movable within said container from a first location proximate said first open end to a second spaced apart location; and (ii) an adapter assembly receivable within said receiving chamber, said adapter assembly comprising a hollow housing having a first open end for telescopically receiving a part of said body portion of said container of said container assembly and including a second end; and (c) delivery means connected to said outlet of said fluid delivery assembly for delivering fluid from said reservoir outwardly of the device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A fluid delivery apparatus comprising:
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(a) a fluid delivery assembly having an outlet for delivering fluid from the apparatus, said fluid delivery assembly including; (i) a base having an upper surface, a lower surface, and a fluid passageway formed in said base intermediate said upper and lower surfaces, said fluid passageway being in communication with said outlet of the apparatus and having first and second ends; (ii) a conformable gel overlaying said base for forming in conjunction therewith a reservoir having a fluid port in communication with said second end of said passageway formed in said base; (iii) a cover connected to said base, said base having a receiving chamber interconnected with said first end of said fluid passageway formed in said base; (iv) an elastomeric membrane for exerting forces on said gel, said elastomeric membrane being superimposed over said gel, said membrane being distendable by forces imparted thereon by said gel in response to fluids introduced into said reservoir, said forces establishing internal stresses within said elastomeric membrane, said stresses tending to return said elastomeric membrane toward a less distended configuration; (v) bolus injection means comprising an injection site formed in said base for delivering a bolus dose of medication into said outlet; and (vi) flow control means in communication with said reservoir for controlling fluid flow toward said outlet; (b) a fill assembly interconnected with said fluid delivery assembly for filling said reservoir, said fill assembly comprising; (i) a container assembly including; a. a container having a body portion, a fluid chamber, and first and second open ends; b. closure means for sealably closing said first end of said container; and c. a plunger telescopically movable within said container from a first location proximate said first open end to a second spaced apart location; and (ii) an adapter assembly receivable within said receiving chamber, said adapter assembly comprising a hollow housing having a first open end for telescopically receiving a part of said body portion of said container of said container assembly and including a second end; and (c) delivery means in communication with said reservoir for delivering fluid from said reservoir outwardly of the device. - View Dependent Claims (22, 23, 24, 25)
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Specification