Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use
First Claim
1. A blood component processing system coupled to a blood component processing device comprising a fluid circuit comprising at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the pump station, and at least one valve in the fluid flow path, a control module sized and configured to interact with the fluid circuit including an actuator to selectively apply fluid pressure to the pump station in concert with operation of the valve to pump fluid through the fluid flow path in response to a control program, and a controller coupled to the control module including the control program and a fluid circuit integrity test function that commands the control module to selectively apply fluid pressure to the pump station in concert with operation of the valve to introduce a fluid within a region of the fluid circuit and to confine the fluid within the region while applying fluid pressure to the pump chamber, the fluid circuit integrity test function generating an integrity output in response to sensing leakage of fluid from the region:
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Accused Products
Abstract
Blood component processing systems and methods are coupled to a blood component processing device. The systems and methods include a fluid circuit that comprises at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the pump station, and at least one valve in the fluid flow path. A control module is sized and configured to interact with the fluid circuit. The control module includes an actuator to selectively apply fluid pressure to the pump station in concert with operation of the valve to pump fluid through the fluid flow path in response to a control program. A controller coupled to the control module includes the control program and a fluid circuit integrity test function. The fluid circuit integrity test function commands the control module to selectively apply fluid pressure to the pump station in concert with operation of the valve to introduce a fluid within a region of the fluid circuit and to confine the fluid within the region while applying fluid pressure to the pump chamber. The fluid circuit integrity test function generates an integrity output in response to sensing leakage of fluid from the region.
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Citations
42 Claims
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1. A blood component processing system coupled to a blood component processing device comprising
a fluid circuit comprising at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the pump station, and at least one valve in the fluid flow path, a control module sized and configured to interact with the fluid circuit including an actuator to selectively apply fluid pressure to the pump station in concert with operation of the valve to pump fluid through the fluid flow path in response to a control program, and a controller coupled to the control module including the control program and a fluid circuit integrity test function that commands the control module to selectively apply fluid pressure to the pump station in concert with operation of the valve to introduce a fluid within a region of the fluid circuit and to confine the fluid within the region while applying fluid pressure to the pump chamber, the fluid circuit integrity test function generating an integrity output in response to sensing leakage of fluid from the region:
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23-28. -28. (Canceled)
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29. A method of carrying out an integrity test function for a fluid circuit for blood component processing, the fluid circuit comprising at least one preformed, fluid pressure actuated pump station, at least one fluid flow path communicating with the pump station, and at least one valve in the fluid flow path, the fluid circuit being configured for interaction with a control module including an actuator to selectively apply fluid pressure to the pump station in concert with operation of the valve to pump fluid through the fluid flow path in response to a control program, the integrity test function comprising the steps of
operating the control module to selectively apply pneumatic pressure to the pump station in concert with operation of the valve to introduce a fluid within a region of the fluid circuit, operating the control module to confine the fluid within the region while applying fluid pressure to the pump chamber, and generating an integrity output in response to sensing leakage of fluid from the region.
Specification