Medical system, method and apparatus employing MEMS
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Accused Products
Abstract
A biological suspension processing system is disclosed that may include a suspension treatment device for treating one or more components of a biological suspension, a first fluid flow path for introducing a suspension into the treatment device and a second fluid flow path for withdrawing a constituent of the suspension from the device. At least one microelectromechanical (MEM) sensor communicates with one of the fluid flow paths for sensing a selected characteristic of the fluid therewith. The MEM sensor may be located elsewhere, such as on a container or bag and communicate with the interior for sensing a characteristic of the fluid contained therein. A wide variety of characteristics may be sensed, such as flow rate, pH, cell type, cell antigenicity, DNA, viral or bacterial presence, cholesterol, hematocrit, cell concentration, cell count, partial pressure, pathogen presence, or viscosity.
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Citations
65 Claims
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1-45. -45. (canceled)
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46. A biological suspension processing system comprising:
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a blood treatment device for treating one or more components of a biological suspension;
a human subject;
a first fluid flow path, wherein said first fluid flow path is in continuing, direct communication with the vascular system of the human subject and the treatment device for introducing blood from the human subject into the treatment device;
a second fluid flow path communicating with the treatment device for withdrawing a constituent of the blood from the treatment device;
at least one microelectromechanical sensor communicating with one of said fluid flow paths for sensing either a biological or a chemical characteristic of the fluid within the flow path while said first fluid flow path is in continuing, direct communication with the vascular system of the human subject; and
a controller adapted to receive signals from said sensor and control the blood treatment device in response thereto. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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Specification