P_DOUTread = 15,000 counts for the Silicon Microstructures SMI-1A digital pressure sensor. What is Pread in mm of Hg? (Type in a one-decimal number)
Answers
Answer:
The IntraSenseTM series are absolute pressure sensors designed to fit into a 1-French hypo tube. The attached wire simplifies the connection
for the end user. The fully encapsulated electronics allow the device to be used without additional gel or encapsulent. This absolute die
delivers accurate and stable pressure for acute procedures in the clinically useful range of -300mmHg to +500mmHg (460mmHg to 1260mmHg
absolute) and from 10°C to 70°C. The output is stable in 37°C saline, and calibration is done in water.
These devices are delivered with an attached PCB with a 5-pin connector offering fully temperature-compensated output. Length of wire is
per customer requirements.
This device is intended for single use.
FEATURES
• Miniature sized sensor: 750µm × 220µm × 75µm
• Fits within 1-French catheter tubes
• Typical drift <2 mmHg/hour drift in 37°C saline
• Encapsulated copper trifilar connection for ease of integration
• PCB with 5-pin connector on the proximal end
• Fully compensated, digital and amplified analog outputs
• RoHS and REACH Compliant
• Biocompatible materials
• Option for reduced sensitivity to light
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Typical Medical Applications
ENDOVASCULAR NEPHROLOGY INTRACRANIAL OTHER
Invasive blood pressure Endourology Intracranial Pressure Monitors Labor and childbirth
Central arterial line Urinalysis Spinal Pressure Guided biopsies
Cardiac surgery Animal monitoring
Peripheral artery disease Trauma response
Coronary artery disease Laparoscopic surgery
Silicon Microstructures, Inc. 2001-2018. All rights reserved +1-(408) 577-0100 | [email protected] I www.si-micro.com
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DOC # 40DS1110.03
Calibrated IntraSenseTM www.si-micro.com
Absolute Maximum Ratingsa
No. Characteristic Symbol Medium Minimum Maximum Units
1 Excitation Voltage(a) VDD Water 3.0 6.0 V
2 Operating Temperature(b,c) TOP Water 1 70 °C
3 Storage Temperature TSTG Air -40 +105 °C
4 ESD Rating VESD Air - TBD kV
5
Operating Pressure(d) PA Water
-600 640 mmHg clinical
160 1400 mmHg absolute
6 Proof Pressure PBURST Air - TBD, >4000 mmHg absolute
7 Burst Pressure(e) PBURST Air - TBD, >4000 mmHg absolute
Notes:
a. The device can be safely exposed within these levels with no loss in performance
b. The minimum temperature the device can withstand in liquid is just above the freezing temperature of the liquid or -40C, whichever is higher.
c. Operating lifetimes for temperatures above 70°C in liquid have not been established
d. The minimum pressure the device can withstand in liquid is the vapor pressure (boiling point) of the liquid, which is a function of temperature
e. The device could fail catastrophically above these pressures, generating fragments
Explanation: