MULTI-RESERVOIR INFUSION PUMP SYSTEMS AND METHODS
First Claim
Patent Images
1. An infusion pump cartridge for delivering fluid to a patient, comprising:
- a delivery mechanism including;
a first inlet port,a second inlet port spaced from the first inlet port,at least one outlet port which is spaced from the first inlet port and second inlet port, anda constrained variable volume which is translatable between a position in fluid communication with the first inlet port, a position in fluid communication with the second inlet port and a position in fluid communication with an outlet port and which is configured to expand while in fluid communication with an inlet port and contract while in fluid communication with an outlet port;
a first fluid reservoir including an interior volume in fluid communication with the first inlet port; and
a second fluid reservoir including an interior volume in fluid communication with the second inlet port.
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Accused Products
Abstract
Embodiments are directed to multi-reservoir infusion devices, systems, and methods of using the same for dispensing materials. In some cases, the devices, systems and methods may be used for infusing a material such as medicament, e.g., insulin, into a body in need thereof.
107 Citations
108 Claims
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1. An infusion pump cartridge for delivering fluid to a patient, comprising:
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a delivery mechanism including; a first inlet port, a second inlet port spaced from the first inlet port, at least one outlet port which is spaced from the first inlet port and second inlet port, and a constrained variable volume which is translatable between a position in fluid communication with the first inlet port, a position in fluid communication with the second inlet port and a position in fluid communication with an outlet port and which is configured to expand while in fluid communication with an inlet port and contract while in fluid communication with an outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; and a second fluid reservoir including an interior volume in fluid communication with the second inlet port. - View Dependent Claims (2, 4)
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3. An infusion pump for delivering fluids to a patient, comprising:
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a delivery mechanism including; a first inlet port, a second inlet port spaced from the first inlet port, at least one outlet port which is spaced from the first inlet port and second inlet port, and a constrained variable volume translatable between a position in fluid communication with the first inlet port, a position in fluid communication with the second inlet port and a position in fluid communication with an outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the constrained variable volume, which is configured to translate the constrained variable volume from each of the inlet ports to an outlet port and which is configured to expand and contract the constrained variable volume of the spool.
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5. An infusion pump for delivering fluids to a patient, comprising:
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a delivery mechanism including; an axial bore including a longitudinal axis and an interior volume, a first inlet port in fluid communication with the interior volume of the axial bore, a second inlet port axially spaced from the first inlet port and in fluid communication with the interior volume of the axial bore, at least one outlet port which is axially spaced from the first inlet port and second inlet port and which is in fluid communication with the interior volume of the axial bore, and a spool which is disposed within the axial bore, which is axially translatable within the axial bore and which forms a constrained variable volume in conjunction with an interior surface of the axial bore; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the spool, which is configured to axially translate the constrained variable volume from each of the inlet ports to an outlet port and which is configured to expand or contract the constrained variable volume of the spool by exerting translational axial force through a boundary section of the constrained variable volume. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An infusion pump for delivering fluids to a patient, comprising:
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a disposable component comprising; a delivery mechanism including; an axial bore, a first inlet port in fluid communication with an interior volume of the axial bore, a second inlet port axially spaced from the first inlet port and in fluid communication with the interior volume of the axial bore, and at least one outlet port which is axially spaced from the inlet ports and which is in fluid communication with the interior volume of the axial bore, and a spool which is disposed within the axial bore, which is axially translatable within the axial bore, and which forms a constrained variable volume in conjunction with an interior surface of the axial bore; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a reusable component comprising a drive mechanism which is operatively coupled to the spool, which is configured to impart controlled axial movement on the spool and translate the constrained variable volume from each of the inlet ports to the at least one outlet port and which is configured to expand or contract the constrained variable volume of the spool by exerting translational axial force through a boundary section of the constrained variable volume. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. A method of delivering fluid to a patient from two independent fluid reservoirs, comprising:
providing an infusion pump, comprising; a delivery mechanism including; a first inlet port, a second inlet port spaced from the first inlet port, at least one outlet port which is spaced from the first inlet port and second inlet port, and a constrained variable volume translatable between a position in fluid communication with the first inlet port, a position in fluid communication with the second inlet port and a position in fluid communication with an outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the constrained variable volume, which is configured to axially translate the constrained variable volume from each of the inlet ports to an outlet port and which is configured to expand or contract the constrained variable volume of the spool; initiating a dispense cycle by translating the constrained variable volume into a position in fluid communication with the first inlet port; exerting translational force through a boundary section of the constrained variable volume to expand the constrained variable volume and draw fluid into the constrained variable through the first inlet port from the first reservoir; translating the constrained variable volume into a position in fluid communication with an outlet port; exerting translational force through a boundary section of the constrained variable volume so as to at least partially contract the constrained variable volume and dispense fluid from the constrained variable volume through the outlet port to a patient; translating the constrained variable volume to a position in fluid communication with the second inlet port; exerting translational force through a boundary section of the constrained variable volume to expand the constrained variable volume and draw fluid into the constrained variable through the second inlet port from the second reservoir; translating the constrained variable volume to a position in fluid communication with an outlet port; and exerting translational force through a boundary section of the constrained variable volume so as to at least partially contract the constrained variable volume and dispense fluid from the constrained variable volume through the outlet port to a patient. - View Dependent Claims (43, 44)
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45. An infusion pump cartridge for delivering fluid to a patient, comprising:
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a delivery mechanism including; a first delivery section which includes a first inlet port and a first outlet port, a first constrained variable volume which is translatable between a position in fluid communication with the first inlet port and a position in fluid communication with the first outlet port and which is configured to expand while in fluid communication with the first inlet port and contract while in fluid communication with the first outlet port, a second delivery section which includes a second inlet port and a second outlet port, and a second constrained variable volume which is coupled to the first constrained variable volume, which is translatable between a position in fluid communication with the second inlet port and a position in fluid communication with the second outlet port and which is configured to expand while in fluid communication with the second inlet port and contract while in fluid communication with the second outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; and a second fluid reservoir including an interior volume in fluid communication with the second inlet port. - View Dependent Claims (46)
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47. An infusion pump, comprising:
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a delivery mechanism including; a first delivery section which includes a first inlet port and a first outlet port, a first constrained variable volume which is translatable between a position in fluid communication with the first inlet port and a position in fluid communication with the first outlet port, a second delivery section which includes a second inlet port and a second outlet port, and a second constrained variable volume which is translatable between a position in fluid communication with the second inlet port and a position in fluid communication with the second outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the first constrained variable volume and operatively coupled to the second constrained variable volume. - View Dependent Claims (48, 49)
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50. An infusion pump for delivering fluids to a patient, comprising:
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a disposable component comprising; a delivery mechanism including; a first delivery section which includes a first inlet port and a first outlet port, a first constrained variable volume which is translatable between a position in fluid communication with the first inlet port and a position in fluid communication with the first outlet port, a second delivery section which includes a second inlet port and a second outlet port, and a second constrained variable volume which is translatable between a position in fluid communication with the second inlet port and a position in fluid communication with the second outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a reusable component comprising a drive mechanism which is operatively coupled to the first constrained variable volume and operatively coupled to the second constrained variable volume. - View Dependent Claims (51, 52, 53, 54, 55, 56)
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57. An infusion pump, comprising:
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a delivery mechanism including; a first axial bore section which includes a first inlet port and a first outlet port in fluid communication with an interior volume of the first axial bore section, a first constrained variable volume with a maximum axial length less than a distance between the first inlet port and first outlet port, a second axial bore section which includes a second inlet port and second outlet port in fluid communication with an interior volume of the second axial bore section, and a second constrained variable volume with a maximum axial length less than a distance between the second inlet port and second outlet port; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the first constrained variable volume and which is operatively coupled to the second constrained variable volume. - View Dependent Claims (58, 59)
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60. An infusion pump, comprising:
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a delivery mechanism including; an axial bore including; a first axial bore section which includes a first inlet port and a first outlet port with said ports being in fluid communication with an interior volume of the first axial bore section, a second axial bore section which includes a second inlet port and second outlet port with said ports being in fluid communication with an interior volume of the second axial bore section, and a spool which is disposed within the axial bore, which is axially translatable within the axial bore, and which comprises; a first spool section including a proximal end configured to couple to a drive mechanism and a first seal which forms a fluid tight seal between the first spool section and an interior surface of the axial bore and which is axially fixed relative to the first spool section and slidable relative to the interior surface of the axial bore, a second spool section including a proximal end coupled to a distal end of the first spool section by a limited displacement coupling and a second seal which forms a fluid tight seal between the second spool section and the interior surface of the axial bore and which is axially fixed relative to the second spool section and slidable relative to the interior surface of the axial bore, a third spool section including a proximal end coupled to a distal end of the second spool section by a limited displacement coupling and a third seal which forms a fluid tight seal between the third spool section and the interior surface of the axial bore and which is axially fixed relative to the third spool section and axially slidable relative to the interior surface of the axial bore, a first constrained variable volume formed between the first spool section, the second spool section, the first seal, the second seal and the interior surface of the axial bore; a second constrained variable volume formed between the second spool section, the third spool section, the second seal, the third seal and the interior surface of the axial bore; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the proximal end of the spool. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78)
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79. An infusion pump, comprising:
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a delivery mechanism including; an axial bore including; a first axial bore section which includes a first inlet port and a first outlet port with said first inlet and first outlet ports being in fluid communication with an interior volume of the first axial bore section, a second axial bore section which is axially spaced from the first axial bore section and which includes a second inlet port and second outlet port with said second inlet and outlet ports being in fluid communication with an interior volume of the second axial bore section, and a spool which includes a proximal end and a distal end, which is disposed within the axial bore, which is axially translatable within the axial bore, which forms a first constrained variable volume between a first seal axially fixed relative to the spool, a slidable second seal disposed distally of the first seal, and an interior surface of the axial bore and which forms a second constrained variable volume between a third slidable seal disposed distally of the second slidable seal, a fourth seal disposed distally of the third slidable seal and axially fixed relative to the spool and an interior surface of the axial bore; a first fluid reservoir including an interior volume in fluid communication with the first inlet port; a second fluid reservoir including an interior volume in fluid communication with the second inlet port; and a drive mechanism which is operatively coupled to the proximal end of the spool. - View Dependent Claims (80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100)
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- 101. An elastomeric annular seal, comprising an annular seal element which includes a substantially uniform cross section along a circumference thereof, the seal element including a first annular ring element and a second annular ring disposed axially adjacent the first ring with the first and second rings being conjoined or fused by a reduced thickness web therebetween so as to form an inner annular channel and an outer annular channel between the rings.
Specification