Extracorporeal Fluid Circuit and Related Components
First Claim
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1. An extracorporeal medical fluid circuit component, comprising:
- a vent assembly comprising;
a micro-porous membrane; and
a vent structure adjacent to the micro-porous membrane, the vent structure comprising a porous material capable of changing color when moistened,wherein the component is capable of being used in an extracorporeal medical fluid circuit.
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Abstract
A vent assembly is described for use in an extracorporeal fluid unit. A vent structure adjacent to a micro-porous membrane forms the assembly. The vent structure is porous and changes color when the vent structure becomes wet, thereby providing a visual indication that the vent structure has been exposed to liquid.
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Citations
40 Claims
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1. An extracorporeal medical fluid circuit component, comprising:
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a vent assembly comprising;
a micro-porous membrane; anda vent structure adjacent to the micro-porous membrane, the vent structure comprising a porous material capable of changing color when moistened, wherein the component is capable of being used in an extracorporeal medical fluid circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A transducer protector comprising:
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a body defining a fluid pathway; and a vent assembly disposed within the fluid pathway, the vent assembly comprising a micro-porous membrane; and a vent structure adjacent to the micro-porous membrane, the vent structure comprising a porous material capable of changing color when moistened, wherein the transducer protector is capable of being connected in fluid communication with a fluid circuit and a pressure transducer such that the vent assembly inhibits liquid flowing within the fluid circuit from contacting the pressure transducer. - View Dependent Claims (22, 23)
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24. An extracorporeal medical fluid circuit apparatus, comprising:
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a chamber including a fluid entry port and a fluid exit port; and a vent assembly comprising; a micro-porous membrane; and a vent structure adjacent to the micro-porous membrane, the vent structure comprising a porous material capable of changing color when moistened, wherein the fluid entry port and the fluid exit port are arranged to allow liquid to pass through the chamber from the fluid entry port to the fluid exit port, and wherein the vent assembly is arranged to allow gas to exit the chamber as the liquid passes through the chamber. - View Dependent Claims (25, 26)
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27. A system, comprising:
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a machine body; a pump on the machine body; fluid circuitry in fluid communication with the pump, wherein the pump is configured to push fluid through the circuitry; a vent assembly in fluid communication with the fluid circuitry, the vent assembly comprising; a micro-porous membrane; and a vent structure adjacent to the micro-porous membrane, the vent structure comprising a porous material capable of changing color when moistened. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification