Sensor apparatus systems, devices and methods
First Claim
1. A multi-fluid flow path containing sensing system for sensing subject media comprising:
- a sensor manifold comprising a housing enclosing at least a first fluid flow path and a second fluid flow path which are fluidically isolated from each other during use of the sensing system, each of said first and second fluid flow paths having a fluid inlet port and a fluid outlet port, wherein the first fluid flow path of the sensor manifold is configured to receive a liquid via a first port and to expel the liquid via a second port located vertically above the first port, and wherein a third port above both the first and seconds port is arranged to vent gas that escapes from the liquid moving from the first port to the second port; and
a sensor apparatus for sensing a conductivity of subject media in each of said first and second fluid flow paths, wherein the sensor apparatus comprises a separate group of conductivity sensors associated with each of said first and second fluid flow paths, each group of conductivity sensors comprising at least two conductivity sensing probes spaced apart from one another.
1 Assignment
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Accused Products
Abstract
A sensor apparatus and sensor apparatus system for use in conjunction with a cassette, including a disposable or replaceable cassette. In some embodiments, the cassette includes a thermal well for permitting the sensing of various properties of a subject media. The thermal well includes a hollow housing of a thermally conductive material. In other embodiments, the cassette includes sensor leads for sensing of various properties of a subject media. The thermal well has an inner surface shaped so as to form a mating relationship with a sensing probe. The mating thermally couples the inner surface with a sensing probe. In some embodiments, the thermal well is located on a disposable portion and the sensing probe on a reusable portion.
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Citations
19 Claims
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1. A multi-fluid flow path containing sensing system for sensing subject media comprising:
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a sensor manifold comprising a housing enclosing at least a first fluid flow path and a second fluid flow path which are fluidically isolated from each other during use of the sensing system, each of said first and second fluid flow paths having a fluid inlet port and a fluid outlet port, wherein the first fluid flow path of the sensor manifold is configured to receive a liquid via a first port and to expel the liquid via a second port located vertically above the first port, and wherein a third port above both the first and seconds port is arranged to vent gas that escapes from the liquid moving from the first port to the second port; and a sensor apparatus for sensing a conductivity of subject media in each of said first and second fluid flow paths, wherein the sensor apparatus comprises a separate group of conductivity sensors associated with each of said first and second fluid flow paths, each group of conductivity sensors comprising at least two conductivity sensing probes spaced apart from one another. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dialysis apparatus comprising a multi-fluid flow path containing sensing system for sensing liquid in the dialysis apparatus, the sensing system comprising:
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a sensor manifold comprising a housing enclosing at least a first fluid flow path and a second fluid flow path which are fluidically isolated from each other during use of the sensing system, each of said first and second fluid flow paths having a fluid inlet port and a fluid outlet port, wherein the first fluid flow path of the sensor manifold is configured to receive a liquid via a first port and to expel the liquid via a second port located vertically above the first port, and wherein a third port above both the first and seconds port is arranged to vent gas that escapes from the liquid moving from the first port to the second port; the sensing system also comprising a sensor apparatus for sensing a conductivity of the liquid in each of said first and second fluid flow paths, wherein the sensor apparatus comprises a separate group of conductivity sensors associated with each of said first and second fluid flow paths, each group of conductivity sensors comprising at least two conductivity sensing probes spaced apart from one another. - View Dependent Claims (9, 10, 11, 12)
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13. A multi-fluid flow path sensing system for sensing a liquid in a dialysis apparatus comprising:
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a sensor manifold comprising a housing enclosing at least a first fluid flow path and a second fluid flow path which are fluidically isolated from each other during use of the sensing system, each of said first and second fluid flow paths having a fluid inlet port and a fluid outlet port, wherein the first fluid flow path of the sensor manifold is configured to receive a liquid via a first port and to expel the liquid via a second port located vertically above the first port, and wherein a third port above both the first and seconds port is arranged to vent gas that escapes from the liquid moving from the first port to the second port; a sensor apparatus for sensing a conductivity of the liquid in each of said first and second fluid flow paths, wherein the sensor apparatus comprises a separate group of conductivity sensors associated with each of said first and second fluid flow paths, each group of conductivity sensors comprising at least two conductivity sensing probes spaced apart from one another; and a controller communicating with the sensor apparatus and configured to monitor the conductivity of the liquid in said first and second fluid flow paths. - View Dependent Claims (14, 15, 16, 17)
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18. A dialysis apparatus comprising a multi-fluid flow path containing sensing system for sensing liquid in the dialysis apparatus, the sensing system comprising:
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a sensor manifold comprising at least two fluidically isolated fluid flow paths, each fluid flow path having a fluid inlet port and a fluid outlet port; and a sensor apparatus at least partially contained within the sensor manifold for sensing at least one characteristic of the liquid in said fluid flow paths, wherein a first fluid flow path of the sensor manifold is configured to receive a liquid via a first port and to expel the liquid via a second port located vertically above the first port, and wherein a third port above both the first and second ports is arranged to vent gas that escapes from the liquid moving from the first port to the second port. - View Dependent Claims (19)
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Specification