Fluid delivery device with conformable ullage and fill assembly
First Claim
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1. A fluid delivery apparatus for delivering fluid into a patient comprising:
- (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 and having first and second ends, said lower surface of said base including means for connecting said fluid delivery assembly to the patient;
(ii) operating means for urging controlled fluid flow through said outlet, said operating means including drive means carried by said base;
(iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said first end of said fluid passageway formed in said base; and
(iv) a stored energy means comprising at least one distendable membrane superimposed over said upper surface of said base to define a fluid reservoir having a fluid inlet in communication with said fluid passageway in said base, said membrane being distendable by forces imparted thereon by fluids introduced into said reservoir through said fluid inlet, said forces establishing internal stresses within said distendable membrane, said stresses tending to return said distendable membrane toward a less distended configuration; and
(b) a fluid containing subassembly interconnected with said fluid delivery assembly for filling said reservoir, said fluid containing subassembly comprising;
(i) a container assembly for containing fluid; 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 container of said container assembly and including a second end, said hollow housing having driven means engageable by said drive means of said fluid delivery assembly for advancing said adapter assembly within said receiving chamber.
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Abstract
A fluid delivery apparatus for continuous basal infusion, together with controlled bolus infusion of injectable medicaments, which embodies a stored energy source such as distendable elastomeric membrane which cooperates with a base and a conformable ullage to define a fluid reservoir and one which includes a unique fill assembly for use in controllably filling the fluid reservoir. The novel fill assembly of the invention enables the fluid reservoir of the fluid delivery portion of the apparatus to be aseptically filled in the field with a wide variety of selected medicinal fluids.
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Citations
17 Claims
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1. A fluid delivery apparatus for delivering fluid into a patient 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 and having first and second ends, said lower surface of said base including means for connecting said fluid delivery assembly to the patient; (ii) operating means for urging controlled fluid flow through said outlet, said operating means including drive means carried by said base; (iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said first end of said fluid passageway formed in said base; and (iv) a stored energy means comprising at least one distendable membrane superimposed over said upper surface of said base to define a fluid reservoir having a fluid inlet in communication with said fluid passageway in said base, said membrane being distendable by forces imparted thereon by fluids introduced into said reservoir through said fluid inlet, said forces establishing internal stresses within said distendable membrane, said stresses tending to return said distendable membrane toward a less distended configuration; and (b) a fluid containing subassembly interconnected with said fluid delivery assembly for filling said reservoir, said fluid containing subassembly comprising; (i) a container assembly for containing fluid; 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 container of said container assembly and including a second end, said hollow housing having driven means engageable by said drive means of said fluid delivery assembly for advancing said adapter assembly within said receiving chamber.
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2. A fluid delivery apparatus for infusion of beneficial agents into a patent 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) fluid reservoir defining means including a distendable membrane and a conformable ullage connected to said base for forming in conjunction therewith a reservoir having an inlet port and an outlet port in communication with said passageway formed in said base; (iii) operating means including a drive wheel carried by said base, said operating means being operable to impart rotational movement to said drive wheel to urge fluid flow through said outlet; and (iv) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said first end of said fluid passageway formed in said base; and (v) fluid delivery means for delivering fluid from said outlet of said fluid delivery assembly, said fluid delivery means comprising a quick connect delivery fitting removably connected to said base; (b) a fluid containing subassembly interconnected with said fluid delivery assembly for filling said reservoir thereof, said fluid containing subassembly 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 said closure means being pierceable by said hollow cannula of said cover overlay; and c. a plunger telescopically movable within said container from a first location proximate said open end to a second spaced apart location to cause fluid within said fluid chamber to flow into said hollow cannula; and (ii) an adapter assembly receivable within said chamber of said cover assembly, 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, said hollow housing having a plurality of longitudinally spaced teeth engageable by said drive wheel of said fluid delivery assembly for controllably advancing said adapter assembly within said receiving chamber. - View Dependent Claims (3)
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4. 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; (ii) a cover assembly connected to said base, one of said cover assembly and said base having a fluid passageway in communication with said outlet and one of said cover assembly and said base having first and second receiving chambers interconnected with said fluid passageway; (iii) operating means for urging controlled fluid flow through said outlet, said operating means including drive means carried by said base; and (iv) a stored energy means for cooperation with said base to define a fluid reservoir having a fluid inlet in communication with said fluid passageway, said stored energy means being energizable by forces imparted thereon by fluids introduced into said reservoir through said fluid inlet, said forces establishing internal stresses within said stored energy means, said stresses tending to return said stored energy means toward a less energized configuration; and (b) a first fluid containing subassembly interconnected with said fluid delivery assembly for filling said reservoir, said first fluid containing subassembly comprising; (i) a first container assembly for containing fluid; and (ii) a first adapter assembly receivable within said first receiving chamber of said fluid delivery assembly, said first adapter assembly comprising a first housing for telescopically receiving a part of said first container assembly; (c) a second fluid containing subassembly interconnected with said fluid delivery assembly for delivering fluid to said outlet of said second fluid containing subassembly comprising; (i) a second container assembly for containing fluid; and (ii) a second adapter assembly receivable within said second receiving chamber of said fluid delivery assembly, said second adapter assembly comprising a second housing for telescopically receiving a part of said second container assembly, said second housing having driven means engageable by said drive means of said operating means of said fluid delivery assembly for advancing said second adapter assembly within said second receiving chamber. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A fluid delivery apparatus for delivering fluid into a patient 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 and having first and second ends; (ii) operating means for urging controlled fluid flow through said outlet, said operating means including drive means carried by said base; (iii) a cover assembly connected to said base, one of said cover assembly and said base having a receiving chamber interconnected with said first end of said fluid passageway formed in said base; and (iv) a stored energy means comprising at lease one distendable membrane superimposed over said upper surface of said base to define a fluid reservoir having a fluid inlet in communication with said fluid passageway in said base, said membrane being distendable by forces imparted thereon by fluids introduced into said reservoir through said fluid inlet, said forces establishing internal stresses within said distendable membrane, said stresses tending to return said distendable membrane toward a less distended configuration; and (b) a fluid containing subassembly interconnected with said fluid delivery assembly for filling said reservoir, said fluid containing subassembly comprising; (i) a container assembly for containing fluid; and (ii) an adapter assembly receivable within said receiving chamber, said adapter assembly comprising a hollow housing having an internal chamber for receiving a part of said container of said container assembly, said hollow housing having driven means engageable by said drive means of said fluid delivery assembly for advancing said adapter assembly within said receiving chamber.
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Specification