Fluid delivery device with fill adapter
First Claim
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1. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
- (a) a base having a lower surface and a fill port;
(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 liquids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration;
(c) infusion means 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;
(d) cover means connected to said base for covering said distendable membrane; and
(e) filling means connected to said base for filling said reservoir, said filling means comprising;
(i) a septum assembly, including a pierceable septum sealably disposed within said fill port of said base;
(ii) a filling syringe having a housing, a fluid reservoir within said housing, and a hollow cannula carried by said housing for communication with said fluid reservoir; and
(iii) a fill adapter connected to said lower surface of said base and extending outwardly therefrom, said fill adapter including a wall portion defining an opening closely receiving at least a portion of said housing of said filling syringe.
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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 also includes a novel adapter which is usable to fill the reservoir of the device using a compatable filling syringe apparatus which is mateable with the adapter.
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Citations
29 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 base having a lower surface and a fill port; (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 liquids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration; (c) infusion means 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; (d) cover means connected to said base for covering said distendable membrane; and (e) filling means connected to said base for filling said reservoir, said filling means comprising; (i) a septum assembly, including a pierceable septum sealably disposed within said fill port of said base; (ii) a filling syringe having a housing, a fluid reservoir within said housing, and a hollow cannula carried by said housing for communication with said fluid reservoir; and (iii) a fill adapter connected to said lower surface of said base and extending outwardly therefrom, said fill adapter including a wall portion defining an opening closely receiving at least a portion of said housing of said filling syringe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a base having an upper surface including a central portion and a peripheral portion circumscribing said central portion, a lower surface engageable with the patient and an intermediate portion disposed between said upper and lower surfaces, said intermediate portion having a fill port formed therein; (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 liquids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration; (c) infusion means 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; (d) cover means connected to said base for covering said distendable membrane; and (e) filling means connected to said base for filling said reservoir, said filling means comprising; (i) a septum assembly, including a pierceable septum sealably disposed within said fill port of said base; (ii) a filling syringe, including a housing, a container having a fluid reservoir disposed within said housing and a hollow piercing needle carried by said housing for communication with said fluid reservoir; and (iii) a fill adapter connected to said lower surface of said base, said fill adapter including an upper wall portion and a lower wall portion defining an opening closely receiving at least a portion of said housing of said filling syringe, at least a part of said fill adapter being removable from said base. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:
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(a) a base having an upper surface including a central portion and a peripheral portion circumscribing said central portion, a lower surface engageable with the patient and an intermediate portion disposed between said upper and lower surfaces, said intermediate portion having a fill port formed therein; (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 liquids introduced into said reservoir to establish internal stresses, said stresses tending to move said membrane toward a less distended configuration; (c) infusion means 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; (d) flow control means disposed between said reservoir and said infusion means for controlling liquid flow from said reservoir; (e) cover means connected to said base for covering said distendable membrane; and (f) filling means connected to said base for filling said reservoir, said filling means comprising; (i) a septum assembly, including a septum housing receivable within said fill port of said base and an elastomeric, pierceable core sealably disposed within said septum housing; (ii) a filling syringe, including a housing, a container having a fluid reservoir disposed within said housing and a hollow piercing needle carried by said housing for communication with said fluid reservoir; and (iii) a fill adapter removably connected to said lower surface of said base, said fill adapter including an upper wall portion and a lower wall portion defining an opening closely receiving at least a portion of said housing of said filling syringe, at least a part of said fill adapter being removable from said base. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification