Fluid container for use with a fluid delivery apparatus
First Claim
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1. An apparatus for use in infusing fluids into an ambulatory patient at a controlled rate comprising:
- (a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path;
(b) filling means operably associated with said base for introducing fluid into said fluid inlet of said base, said filling means comprising;
(i) a container having a fluid chamber with first and second open ends;
(ii) piercable means for sealably closing one of said first and second open ends of said container, said piercable means being piercable by a cannula; and
(iii) a plunger telescopically movable within said container by fluid pressure from a first location proximate said piercable means to a second, spaced-apart location; and
(c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet of said base, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet by said filling means, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet.
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Abstract
A fluid container assembly which can be aseptically filled in the field with selected fluids and one which is specially designed for sterile coupling and use with fluid dispensing and delivery devices of the character that embody stored energy sources such as compressible cellular masses and distendable elastomeric membranes that form, in conjunction with a cooperating base, fluid chambers for containing the fluid to be dispensed.
67 Citations
15 Claims
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1. An apparatus for use in infusing fluids into an ambulatory patient at a controlled rate comprising:
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(a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path; (b) filling means operably associated with said base for introducing fluid into said fluid inlet of said base, said filling means comprising; (i) a container having a fluid chamber with first and second open ends; (ii) piercable means for sealably closing one of said first and second open ends of said container, said piercable means being piercable by a cannula; and (iii) a plunger telescopically movable within said container by fluid pressure from a first location proximate said piercable means to a second, spaced-apart location; and (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet of said base, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet by said filling means, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising:
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(a) a base having an inlet opening defining a fluid inlet, said base also having a fluid outlet interconnected with said fluid inlet by a fluid flow path; (b) filling means for introducing fluid into said fluid inlet, said filling means comprising; (i) a container receivable within said inlet opening, said container having a fluid chamber with first and second open ends; (ii) piercable means for sealably closing one of said first and second open ends of said container, said piercable means being piercable by a piercing cannula; and (iii) a plunger telescopically movable within said container by fluid pressure from a first location proximate said piercable means to a second, spaced-apart location; and (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet. - View Dependent Claims (10, 11)
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12. A vial assembly for containing an infusible liquid, said vial assembly comprising:
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(a) a container having a liquid chamber with first and second open ends; (b) piercable means for sealably closing one of said first and second open ends of said container, said piercable means being piercable by a piercing cannula; (c) a plunger telescopically movable within said container by liquid pressure from a first location proximate said piercable means to a second, spaced-apart location; and (d) an outer casing surrounding said container said casing having first and second ends, one of said first and second ends being closed by a closure cap and the other of said first and second ends being closed by a closure assembly comprising vent means for venting said chamber to atmosphere. - View Dependent Claims (13, 14, 15)
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Specification