Pump module for use in a medical fluid dispensing system
First Claim
1. A pump module for use in a medical fluid dispensing system comprising:
- a pump body;
first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber;
first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers;
first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; and
first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber;
wherein the predetermined interior shape of each of the pump chambers comprises a first portion having a generally spherical segment shape and a second portion integral with the first portion and having a generally conical shape, the first and second portions being in fluid communication with the chamber inlet and the chamber outlet;
the second, generally conically shaped portion of each of the pump chambers converges to the corresponding chamber outlet.
3 Assignments
0 Petitions
Accused Products
Abstract
A pump module for use in a medical fluid dispensing system is provided that includes a pump body and first and second pump chambers formed in the pump body. The module further includes a pair of chamber inlets and chamber outlets formed in the pump body, each associated with one of the pump chambers. Each of the pump chambers further includes a first portion having a generally spherical segment shape and a second portion integral with the first portion and having a generally conical shape, with the first and second portions in fluid communication with the chamber inlet and the chamber outlet. The second, conically shaped portion converges to the chamber outlet.
30 Citations
62 Claims
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1. A pump module for use in a medical fluid dispensing system comprising:
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a pump body; first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers; first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; and first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber; wherein the predetermined interior shape of each of the pump chambers comprises a first portion having a generally spherical segment shape and a second portion integral with the first portion and having a generally conical shape, the first and second portions being in fluid communication with the chamber inlet and the chamber outlet; the second, generally conically shaped portion of each of the pump chambers converges to the corresponding chamber outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pump module for use in a medical fluid dispensing system comprising:
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a pump body; first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers; first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; and first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber;
whereinat least a portion of the pump chamber converges to the corresponding chamber outlet, for each of the pump chambers. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A pump module for use in a medical fluid dispensing system comprising:
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a pump body; first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber, the predetermined interior shape being generally teardrop shaped; first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers; first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber; a fluid flow network formed in the pump body and operable for supplying fluid from a source of fluid to the first and second fluid supply passages and the first and second pump chambers and for dispensing fluid from the pump chambers out of the pump body during operation of the pump module; a first fluid displacement member mechanically coupled to the pump body and operably extendable into the interior of the first pump chamber, wherein fluid is displaced out of the first pump chamber into the fluid flow network; and a second fluid displacement member mechanically coupled to the pump body and operably extendable into the interior of the second pump chamber, wherein fluid is displaced out of the second pump chamber into the fluid flow network, the first and second fluid displacement members being independently operable from one another.
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23. A pump module for use in a medical fluid dispensing system comprising:
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a pump body made of a plastic material; first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers; first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber; and a fluid flow network formed in the pump body and operable for supplying fluid from a source of fluid to the first and second fluid supply passages and the first and second pump chambers, and for dispensing fluid from the pump chambers out of the pump body during operation of the pump module. - View Dependent Claims (24, 25, 26, 27)
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28. A pump module for use in a medical fluid dispensing system comprising:
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a pump body; a pump chamber having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; a fluid supply passage coupled into fluid communication with the interior of the pump chamber; a chamber outlet associated with the pump chamber, the chamber outlet coupled to the interior surface and in fluid communication with the interior of the pump chamber, such that the pump chamber acts as a fluid reservoir between the fluid supply passage and the chamber outlet; a chamber inlet associated with the pump chamber, the chamber inlet coupled to the interior surface and in fluid communication with the interior of the pump chamber, the chamber inlet configured to receive a displacement member therethrough into the interior of the pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber;
whereinat least a portion of the pump chamber converges to the chamber outlet.
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29. A method of manufacturing a pump module for use in a medical fluid dispensing system comprising:
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using a plastic material to make a pump body of the module; forming first and second pump chambers within the pump body, each of the first and second pump chambers having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; forming first and second fluid supply passages within the pump body, each of the fluid supply passages coupled into fluid communication with the interior of the corresponding pump chamber; forming first and second chamber outlets within the pump body, each of the chamber outlets coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; forming first and second chamber inlets within the pump body, each of the chamber inlets coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the chamber inlets configured to receive a displacement member therethrough into the interior of the corresponding pump chamber such that movement of the displacement member relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber; and forming a fluid flow network within the pump body, wherein the fluid flow network communicates with the pump chambers. - View Dependent Claims (30, 31, 32)
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33. A pump for use in a medical fluid dispensing system comprising:
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a pump body made of a non-compliant material; first and second pump chambers, each having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber; first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers; first and second chamber outlets associated with the corresponding first and second pump chambers, each chamber outlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, such that each of the first and second pump chambers acts as a fluid reservoir between the corresponding fluid supply passage and the corresponding chamber outlet; first and second chamber inlets associated with the corresponding first and second pump chambers, each chamber inlet coupled to the interior surface and in fluid communication with the interior of the corresponding pump chamber, each of the first and second chamber inlets configured to receive a displacement device therethrough into the interior of the corresponding pump chamber such that movement of the displacement device relative to the interior surface causes fluid to move between the fluid supply passage and the chamber outlet through the pump chamber; a fluid flow network formed in the pump body and operable for supplying fluid from a source of fluid to the first and second fluid supply passages and the first and second pump chambers, and for dispensing fluid from the pump chambers out of the pump body during operation of the pump; a first fluid displacement device mechanically coupled to the pump body and operably extendable into the interior of the first pump chamber, wherein fluid is displaced out of the first pump chamber into the fluid flow network; and a second fluid displacement device mechanically coupled to the pump body and operably extendable into the interior of the second pump chamber, wherein fluid is displaced out of the second pump chamber into the fluid flow network;
whereinthe first and second fluid displacement devices are operable independently from one another. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method for pumping fluid in a medical fluid dispensing system comprising the steps of:
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providing a pump comprising a pump body made of a non-compliant material, first and second pump chambers having an interior bounded by an interior surface of the pump body and defining a predetermined interior shape of the pump chamber, the pump further including first and second fluid supply passages coupled into fluid communication with the interior of the corresponding first and second pump chambers, first and second chamber outlets coupled into fluid communication with the interior of the corresponding first and second pump chambers such that the pump chambers act as fluid reservoirs between the corresponding fluid supply passage and chamber outlet, first and second chamber inlets coupled into fluid communication with the interior of the corresponding pump chamber and configured to receive a displacement member therethrough, and a fluid flow network formed in the pump body; supplying fluid through the fluid flow network to the pump chambers; independently pumping at least a portion of the fluid out of each of the pump chambers, through the fluid flow network and out of the pump. - View Dependent Claims (55, 56, 57, 58, 59)
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60. A pump module for use in a medical fluid dispensing system comprising:
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a pump body made of a plastic material; first and second pump chambers formed in the pump body; and a fluid flow network formed in the pump body and operable for supplying fluid from a source of fluid to the pump chambers, and for dispensing fluid from the pump chambers out of the pump body during operation of the pump module;
said fluid flow network comprising a plurality of non-displacement valves,wherein each of the non-displacement valves is a rotatable valve comprising a stem defining an axis of rotation, a coupling portion integral with the stem and a flow passage;
the flow passage of each of the valves extends substantially straight through the stem and transverse to the axis of rotation; and
the coupling portion is adapted to be coupled to a rotational actuator. - View Dependent Claims (61)
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62. A method of manufacturing a pump module for use in a medical fluid dispensing system comprising:
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using a plastic material to make a pump body of the module; forming first and second pump chambers within the pump body, each of the first and second pump chambers having an interior cavity; forming a fluid flow network within the pump body, wherein the fluid flow network communicates with the pump chambers; and inserting a plurality of non-displacement valves into the fluid flow network, wherein each of said non-displacement valves is a rotatable valve comprising a stem defining an axis of rotation, a coupling portion integral with the stem and a flow passage;
the flow passage of each of the valves extends substantially straight through the stem and transverse to the axis of rotation; and
the coupling portion is adapted to be coupled to a rotational actuator.
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Specification