Multiple canopy
First Claim
1. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
- (a) a housing including a base, a fluid inlet and a fluid outlet;
(b) at least one extendable membrane connected to said base, said membrane being extendable from a first position proximate said base to a second distended position as a result of pressure imparted by fluids introduced into said fluid inlet to establish internal stresses tending to move said membrane toward said first position; and
(c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of circumferentially spaced, concentric chambers for receiving said membrane as said membrane extends toward said second extended position.
4 Assignments
0 Petitions
Accused Products
Abstract
A fluid delivery device having a self-contained stored energy membrane for expelling fluids at a precisely controlled rate, which is of a compact, laminate construction. The device is of very low profile so that it can conveniently be used for the precise delivery of a small volume of pharmaceutical fluids, such as insulin, morphine and the like, into an ambulatory patient at precisely controlled rates over extended periods of time. The device includes strategically configured, multiple fluid chambers to achieve the maximum possible average percent of extension of the membrane and thereby assure adequate fluid delivery pressure.
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Citations
36 Claims
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1. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a housing including a base, a fluid inlet and a fluid outlet;
(b) at least one extendable membrane connected to said base, said membrane being extendable from a first position proximate said base to a second distended position as a result of pressure imparted by fluids introduced into said fluid inlet to establish internal stresses tending to move said membrane toward said first position; and
(c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of circumferentially spaced, concentric chambers for receiving said membrane as said membrane extends toward said second extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
a. a container having a fluid chamber; and
b. displacement means movable relative to said fluid chamber for expelling fluid from said fluid chamber.
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14. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a housing having a base, a fluid inlet and a fluid outlet;
(b) at least one extendable membrane connected to said base, said membrane being extendable from a first position proximate said base to a second distended position as a result of pressure imparted by fluids introduced into said fluid inlet to establish internal stresses tending to move said membrane toward said first position, said membrane cooperating with said base to define a plurality of spaced-apart, concentric fluid reservoirs (c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of spaced-apart, concentric chambers for receiving said membrane as said membrane extends toward said second distended position;
(d) fill means connected to said housing for filling said reservoir; and
(e) infusion means connected to said housing for infusing the medicinal fluids into the patient. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
(a) a container having a fluid chamber; and
(b) displacement means movable relative to said fluid chamber for expelling fluid from said fluid chamber.
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22. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a housing having a base, a fluid inlet and a fluid outlet, said base having a central, upstanding protuberance and an annular shaped, upstanding protuberance spaced apart from and concentric with said central upstanding protuberance;
(b) at least one extendable membrane connected to said base, said membrane being extended from a first position proximate said base to a second distended position as a result of pressure imparted by fluids introduced into said fluid inlet to establish internal stresses tending to move said membrane toward said first position, said membrane cooperating with said base to define a fluid reservoir comprising a plurality of circumferentially spaced, concentric portions;
(c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of circumferentially spaced, concentric chambers for receiving said membrane as said membrane distends toward said second distended position;
(d) fill means connected to said housing for filling said reservoir; and
(e) infusion means connected to said housing for infusing the medicinal fluids into the patient. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
(a) a container having a fluid chamber; and
(b) displacement means movable relative to said fluid chamber for expelling fluid from said fluid chamber.
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28. The device as defined in claim 22 in which said base includes a fill port and in which said fill means comprises a septum assembly connected to said fill port of said base.
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29. The device as defined in claim 28 in which said septum assembly comprises a septum housing receivable within said fill port of said base and a septum sealably disposed within said septum housing.
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30. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a housing including a base having a first, upstanding protuberance and a second upstanding protuberance spaced apart from said first upstanding protuberance;
(b) stored energy means for forming, in conjunction with said base, a reservoir having an inlet port and an outlet port, said stored energy means comprising at least one distendable membrane superimposed over said base, said membrane being distendable as a result of pressure imparted by fluids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration;
(c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of spaced-apart apertures for receiving said membrane as said membrane is distended;
(d) filling means connected to said base for filling said reservoir (e) infusion means connected to said base for infusing medicinal fluids from said fluid reservoir into the patient, said infusion means comprising a hollow cannula having an inlet in communication with said outlet port of said reservoir; and
(f) flow indicating means carried by said housing for visually indicating that fluid is flowing from the reservoir toward said infusion means. - View Dependent Claims (31, 32)
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33. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a housing including a base having a first, upstanding protuberance and a second upstanding protuberance spaced apart from said first upstanding protuberance;
(b) stored energy means for forming, in conjunction with said base, a reservoir having an inlet port and an outlet port, said stored energy means comprising at least one distendable membrane superimposed over said base, said membrane being distendable as a result of pressure imparted by fluids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration;
(c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of spaced-apart apertures for receiving said membrane as said membrane is distended;
(d) rate control means connected to said housing for controlling the rate of fluid toward the patient; and
(e) infusion means connected to said base for infusing medicinal fluids from said fluid reservoir into the patient. - View Dependent Claims (34, 35, 36)
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Specification