1-48 blood pressure model 1620 disposable blood pressure sensor aami specification low cost multiple configurations t disposable blood pressure t measurements t kidney dialysis machines t medical instrumentation features t low cost disposable design t solid state piezoresistive sensor t top side pressure entry t compatible with automated assembly equipment t integral dielectric gel barrier t fully tested and compensated standard range -30 to 300 mmhg description the model 1620 is a fully piezoresistive silicon pressure sensor for use in invasive blood pressure monitoring. the sensor is designed to be used with automated assembly equipment and can be dropped directly into a customer's disposable blood pressure housing. the sensor is designed to meet the requirements as described in the association for the advancement of medical instrumentation (aami) specification for blood pressure transducers. the pressure sensor consists of a pressure sensing element mounted on a ceramic substrate. thick-film resistors on the ceramic substrate are laser-trimmed for compensation and calibration. a plastic cap is attached to the ceramic substrate to provide an easy method of attachment to the customers assembly and protection for the sensing element. a dielectric gel is placed over the sensor to provide electrical and fluid isolation. the model 1620 pressure sensors are batch manufactured in a 10x12 element array on a ceramic substrate (120 units per substrate). the products are shipped in anti-static shipping containers. performance characteristics and packaging can be easily tailored on a special order basis to meet the requirements of specific customers.
disposable blood pressure sensor model 1620 blood pressure 1-49 april 2000 performance specifications supply voltage: 6.0 vdc ambient temperature: 25c (unless otherwise specified) notes 1. output of sensor with no pressure applied and a 150k w resistor shorted across +vin to +out. 2. for input impedance of 350 w 5% select pad configuration 1. 3. over an 8 hour time period and after warm-up. 4. over operating temperature range (+10c to +40c). 5. one discharge per minute. 6. sterilization performed by customer. 7. defined as common mode symmetry between signal output and either excitation terminal. parameters min typ max units notes operating pressure range -30 300 mmhg overpressure 125 psi zero pressure offset 20 mmhg sensitivity 4.95 5.0 5.05 v/v/mmhg calibration 97.5 100 102.5 mmhg 1 linearity & hysteresis (-30 to 100 mmhg) 1 mmhg linearity & hysteresis (>100 to 200 mmhg) 1 % output linearity & hysteresis (>200 to 300 mmhg) 1.5 % output input impedance 1200 3200 w 2 output impedance 285 315 w output symmetry 0.95 1.05 ratio 7 supply voltage 1 6 10 vdc risk current (at 120 vac rms 60 hz) 2 ma warm-up time 5 seconds frequency response 1200 hz offset drift 2mmhg 3 thermal span shift 0.1 %/c 4 thermal offset shift 0.3 mmhg/c 4 phase shift (at 5 khz) 5 degrees light sensitivity (3000 foot candle) 1mmhg defibrillator withstand (400 joules) 5 discharges 5 sterilization (eto) 3 cycles 6 operating temperature +10c to +40c storage temperature -25c to +70c humidity 10 - 90% (non-condensing) operating product life 168 hours shelf life 2 years dielectric breakdown 10,000 vdc media interface dielectric gel volume displacement 4.5 x 10 -4 in 3 weight 0.5 grams
model 1620 disposable blood pressure sensor 1-50 blood pressure connections and dimensions all dimensions are in inches [millimeters]. body style n *dimensions indicated do not include flares. body style w *dimensions indicated do not include flares. section a-a notes 1. materials used: substrate: 96% alumina transducer (die): silicon die attach adhesive: room temperature vulcanizer lid adhesive: medical grade uv curing adhesive conductor and contact pads: palladium-silver alloy wire bonds and bond pads: gold resistors: ruthenium-based thick film paste solder dams: green glass protective gel lid: rad-stable poly carbonate resin 2. miniscus of gel: max dimension below surface a = .035" [0.89]. max dimension above surface a = .001" [0.03]. 3. all dimensions taken at maximum draft. 4. all unspecified fillets and radii are.015" [0.38]. 5. all draft angles 1 maximum.
disposable blood pressure sensor model 1620 blood pressure 1-51 april 2000 standard pad configurations all dimensions are in inches [millimeters]. note 1. custom pad configurations not shown here may be special ordered. call ic sensors for details. shipping information notes 1. sensors are shipped as 120 up snapstrates and must be singulated by the purchaser. 2. each plate may include units that have failed visual or electrical parameters as well as good units. bad units are identified with a dot on the backside of the cell location. 3. plates are shipped in dust free anti-static containers to prevent contamination of the gel surface. schematic diagram ordering information preliminary 1620 - 1 - n body style (n = narrow, w = wide) pad configuration (1, 2, 3, 4) model
model 1620 disposable blood pressure sensor 1-52 blood pressure
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