Integrated blood handling system having active gas removal system and method of use
First Claim
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1. Apparatus for oxygenating and pumping blood comprising:
- a housing;
a gas removal system coupled to the housing;
a blood oxygenation element disposed within the housing; and
a pump coupled in fluid communication with the blood oxygenation element.
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Abstract
Apparatus and methods for pumping and oxygenating blood are provided that include a gas removal system. An integrated blood processing unit is provided in which a gas removal/blood filter, pump and blood oxygenation element are mounted within a common housing. The gas removal system includes a sensor mounted on the housing to sense the presence of gas, and a valve is operably coupled to the sensor to evacuate gas from the system when the sensor detects an accumulation of gas.
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Citations
34 Claims
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1. Apparatus for oxygenating and pumping blood comprising:
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a housing;
a gas removal system coupled to the housing;
a blood oxygenation element disposed within the housing; and
a pump coupled in fluid communication with the blood oxygenation element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus for oxygenating and pumping blood comprising:
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a housing;
a blood oxygenation element having an annular fiber bundle disposed within the housing surrounding a central void, the blood oxygenation element having an inlet and an outlet, the inlet being disposed on a diametrically opposite side of the annular fiber bundle from the outlet; and
a pump coupled in fluid communication with the blood oxygenation element, the pump having a pump inlet and a pump outlet coupled to the inlet. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A gas removal system for removing air from blood, comprising:
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a housing having an interior, a blood inlet and a blood outlet;
a sensor positioned to sense gas within the interior of the housing; and
a filter element disposed within the interior of the housing. - View Dependent Claims (23, 24, 25, 26, 27)
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28. Apparatus for removing gas from a blood flow, comprising:
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a housing having an interior;
an inlet leading to the interior;
an outlet coupled to the interior for removing blood from the interior;
a filter element disposed within the housing and positioned to separate the inlet from outlet so that blood entering the inlet must pass through the filter element; and
a sensor coupled to the housing, the sensor determining whether gas is present. - View Dependent Claims (29, 30, 31, 33, 34)
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32. A method of priming a blood handling system, comprising the steps of:
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providing a gas removal system, a blood oxygenation element and a pump, the gas removal device having a sensor that detects whether the presence of gas, the sensor operably coupled to a valve that opens when gas is detected by the sensor to permit removal of the gas;
coupling the gas removal device, blood oxygenation element and pump to an arterial cannulae and a venous cannulae; and
priming the system with blood or saline to remove air from the system by activating the gas removal system.
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Specification