Sensor apparatus systems, devices and methods
First Claim
1. A dialysis apparatus comprising a cassette for sensing liquid in the dialysis apparatus, the cassette comprising a housing having a plurality of fluid paths, each fluid path includinga sensor element comprising a well for transmitting temperature and permitting conductivity sensing of fluid passing along the fluid path, wherein the well is adapted for interconnection with a sensor,wherein a first fluid flow path of the housing 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 the first and second ports is arranged to vent gas that escapes from the liquid moving from the first port to the second port.
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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
11 Claims
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1. A dialysis apparatus comprising a cassette for sensing liquid in the dialysis apparatus, the cassette comprising a housing having a plurality of fluid paths, each fluid path including
a sensor element comprising a well for transmitting temperature and permitting conductivity sensing of fluid passing along the fluid path, wherein the well is adapted for interconnection with a sensor, wherein a first fluid flow path of the housing 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 the first and second ports is arranged to vent gas that escapes from the liquid moving from the first port to the second port.
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2. A dialysis apparatus comprising a cassette for sensing liquid in the dialysis apparatus, the cassette comprising a housing having a plurality of fluid paths, each fluid path including
a sensor element comprising a well for transmitting temperature and permitting conductivity sensing of fluid passing along the fluid path, wherein the well is adapted for interconnection with a sensor, wherein a first fluid path of the housing is configured to receive a first mixture of water and a bicarbonate buffer solution, and a second fluid path of the housing is configured to receive a second mixture of completed dialysate comprising the first mixture and an acid or electrolyte concentrate; - wherein each fluid path comprises a conductivity sensing probe extending into the fluid path and spaced apart from the well.
- View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A dialysis apparatus comprising a cassette for sensing liquid in the dialysis apparatus, the cassette comprising a housing having a plurality of fluid paths, each fluid path including
a sensor element comprising a well for transmitting temperature and permitting conductivity sensing of fluid passing along the fluid path, wherein a first fluid flow path of the housing is configured to dialysate solution that is flowing to a dialyzer, and a second fluid flow path of the housing is configured to receive dialysate solution directed to drain or to a heating apparatus; - wherein each well of the plurality of fluid paths is adapted for interconnection with a thermistor.
- View Dependent Claims (11)
Specification