MPXC2011DTI datasheet(2/6 Pages) FREESCALE

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MPXC2011DT1

Sensors

Freescale Semiconductor, Inc.

Pressure

Freescale Semiconductor's MPXC2011DT1 Pressure

Sensor has been designed for medical usage by combining

the performance of Freescale Semiconductor's shear stress

pressure sensor design and the use of biomedically

approved materials. Materials with a proven history in

medical situations have been chosen to provide a sensor that

can be used with confidence in applications, such as invasive

blood pressure monitoring. It can be sterilized using ethylene

oxide. The portions of the pressure sensor that are required

to be biomedically approved are the rigid housing and the gel

coating.

The rigid housing is molded from a white, medical grade

polysulfone that has passed extensive biological testing

including: 10993-5:1999, 10993-10:2002, and 10993-

11:1993.

The MPXC2011DT1 contains a silicone dielectric gel

which covers the silicon piezoresistive sensing element. The

gel is a nontoxic, nonallergenic elastomer system which

meets all USP XX Biological Testing Class V requirements.

The properties of the gel allow it to transmit pressure

uniformly to the diaphragm surface, while isolating the

internal electrical connections from the corrosive effects of

fluids, such as saline solution. The gel provides electrical

isolation sufficient to withstand defibrillation testing, as

specified in the proposed Association for the Advancement of

Medical Instrumentation (AAMI) Standard for blood pressure

transducers. A biomedically approved opaque filler in the gel

prevents bright operating room lights from affecting the

performance of the sensor.

MPXC2011DTI датащи(PDF) 2 Page - Freescale Semiconductor, Inc