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Insulin Pump

Overview

Description

Insulin administration is vital for diabetic patients to regulate blood glucose levels and prevent complications from irregular blood sugar levels. Insulin pumps are wearable medical devices that automatically inject insulin by mimicking the body's natural insulin release. They provide a steady basal insulin flow throughout the day and night, along with additional bolus doses at mealtimes to regulate blood sugar spikes. This device eliminates the need for manual insulin injections, offering improved insulin therapy and peace of mind for the patient.

This insulin pump design interfaces with a continuous glucose monitor (CGM) to track blood glucose levels and administer insulin appropriately, offering accurate insulin delivery with connectivity features.

System Benefits:

  • Precise motor control ensures accurate insulin delivery.
  • The closed loop system with a CGM sensor automates insulin dosage.
  • Information is displayed on both a local OLED screen and a smartphone app to provide data on insulin delivery.
  • NFC technology enables secure communication between the sensor and the pump.
  • Fast, safe charging via a magnetically connected USB cable minimizes injury risks.
  • PC connectivity via USB interface enhances data management.
  • Bluetooth® Low Energy (LE) 5 facilitates secure communication with the CGM sensor.
  • Low sleep current extends battery life for uninterrupted usage.

Comparison

Applications

  • Diabetes treatment (e.g. by Continuous Glucose Monitoring)
  • Insulin drug adherence with CGM Sensor

Block Diagram

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EU176_v.1.1: WEB Connector Line Connector Arrow.210 Line Arrow.346 Connector Arrow.431 Connector Arrow.298 Line.368 Connector Arrow.385 Connector Arrow.273 Connector Arrow.333 NFC Coil NFC Coil NFC Coil NFC Coil Sheet.315 Transformer.324 Line.841 Line.842 Sheet.319 Inductor.300 Sheet.321 Sheet.322 Sheet.323 Line.324 Line.325 Connector Line.206 Connected signals line.163 Crystal.40 Sheet.41 Sheet.42 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Line.48 Line.49 Crystal Sheet.31 Sheet.32 Sheet.33 Sheet.34 Sheet.35 Sheet.36 Sheet.37 Line Line.39 Magnetic Holder Magnetic Holder Magnetic Holder Antenna Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Tablet Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Line Bi-directional Dotted 32MHz 32MHz 32MHz 32kHz 32kHz 32kHz SPST NO Switch Sheet.195 Sheet.196 Sheet.197 Sheet.198 Sheet.199 Sheet.200 ~3.7V ~3.7V ~3.7V Line Arrow Power Switch Power Switch Power Switch 6V/2Amax 6V/2Amax 6V/2Amax Motor Sheet.213 Sheet.214 M M Connector Arrow.224 3.3V 3.3V 3.3V Connector Line.235 DC Motor or Piezo Drive DC Motor or Piezo Drive DC Motor or Piezo Drive Connected signals arrow.244 OLED Sheet.246 Label Text 10pt.160 Sheet.248 Sheet.249 Sheet.250 Sheet.251 Sheet.252 Sheet.253 Sheet.254 Sheet.255 Sheet.256 Sheet.257 Sheet.258 Sheet.259 Sheet.260 Sheet.261 Sheet.262 Sheet.263 Sheet.264 Sheet.265 Sheet.266 Sheet.267 Sheet.268 Sheet.269 Sheet.270 Sheet.271 Sheet.272 Enable Peripherals Enable Peripherals Enable Peripherals Shunt Sheet.277 Sheet.278 Sheet.279 Shunt.280 Sheet.281 Sheet.282 Sheet.283 Ground.285 Sheet.286 Sheet.287 Line Arrow.296 Connected signals arrow.297 Enable BAT Measurement Enable BAT Measurement Enable BAT Measurement Connector 1.160 Connected signals arrow.329 Bi-directional Connected signals arrow.334 Bi-directional.335 Communication e.g. for Bluetooth Pairing Communication e.g. for Bluetooth Pairing Communication e.g. for Bluetooth Pairing QSPI Flash QSPI Flash QSPI Flash EU176 EU176 EU176 Connected signals arrow.345 Line Bi-directional Vertical Wire Bundle 6 6 6 Sheet.350 *For use with DA14592 Bluetooth LE SoC *For use with DA14592 Bluetooth LE SoC *For use with DA14592 Bluetooth LE SoC Line Arrow.352 Connector 1.160.353 3.3V 3.3V 3.3V Line Bi-directional.356 Vertical Wire Bundle.357 n n n Sheet.359 SPST NO Switch.361 Sheet.362 Sheet.363 Sheet.364 Sheet.365 Sheet.366 Sheet.367 Ground.376 Sheet.377 Sheet.378 Line.379 User Button(s) User Button(s) User Button(s) Bi-directional.386 Vertical Wire Bundle.387 2 2 2 Sheet.389 Battery 1-Cell Sheet.392 Sheet.393 Line 1pt.1552 Line 1pt.1583 Ground.178 Sheet.397 Sheet.398 Line.188 Sheet.400 Diode - LED Sheet.402 Sheet.403 Sheet.404 Sheet.405 Sheet.406 Darlington.651 Sheet.408 Darlington.254 Ground.181 Sheet.411 Sheet.412 Line.184 Line.185 Connector Line.396 4Amax 4Amax 4Amax Connector Arrow Connector Line.428 Battery Charger Battery Charger Battery Charger Connected signals arrow Boost Enable Boost Enable Boost Enable Connector Arrow.433 USB Connection USB Connection USB Connection Load Switch Load Switch Load Switch Boost Regulator Boost Regulator Boost Regulator Buck-Boost Regulator Buck-Boost Regulator Buck-Boost Regulator Sheet.434 Load Switch Load Switch Load Switch In In In Ctrl Ctrl Ctrl Out Out Out Sheet.435 Load Switch Load Switch Load Switch In In In Ctrl Ctrl Ctrl Out Out Out Sheet.436 NFC NFC NFC VDD VDD VDD I2C I2C I2C Sheet.437 Position Sensor Position Sensor Position Sensor VDD VDD VDD PWM PWM PWM Transformer Inductor Iron Core Line.841 Inductor Air Core.212 Sheet.147 Sheet.148 Sheet.149 Sheet.150 Sheet.151 Sheet.152 Sheet.153 Sheet.154 Sheet.155 Line.29 Sheet.439 Circle.162 Circle Full-Bridge HVPAK Full-Bridge HVPAK Full-Bridge HVPAK I2C I2C I2C PWM PWM PWM Sheet.142 N-Channel Depletion MOSFET.107 Sheet.108 Sheet.109 Sheet.110 Sheet.111 Sheet.112 Sheet.113 Sheet.114 Sheet.115 Sheet.116 Sheet.117 Sheet.118 Sheet.119 Connect.50 Sheet.121 Sheet.122 Sheet.123 N-Channel Depletion MOSFET.124 Sheet.125 Sheet.126 Sheet.127 Sheet.128 Sheet.129 Sheet.130 Sheet.131 Sheet.132 Sheet.133 Sheet.134 Sheet.135 Sheet.136 Connect.50 Sheet.138 Sheet.139 Sheet.140 Line.141 Sheet.143 N-Channel Depletion MOSFET Sheet.56 Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.65 Sheet.66 Sheet.67 Connect.50 Sheet.69 Sheet.70 Sheet.71 N-Channel Depletion MOSFET.89 Sheet.90 Sheet.91 Sheet.92 Sheet.93 Sheet.94 Sheet.95 Sheet.96 Sheet.97 Sheet.98 Sheet.99 Sheet.100 Sheet.101 Connect.50 Sheet.103 Sheet.104 Sheet.105 Line.106 Ground Sheet.229 Sheet.230 Ground.231 Sheet.232 Sheet.233 Line.227 Line.226 Connected signals line Connected signals line.158 Sheet.440 Bluetooth MCU Bluetooth MCU Bluetooth MCU BLE PHY BLE PHY BLE PHY RF Osc. RF Osc. RF Osc. RTC RTC RTC I2C I2C I2C PWM PWM PWM VDD VDD VDD GPIO GPIO GPIO ADC ADC ADC GPIO GPIO GPIO I2C I2C I2C I2C I2C I2C 1V8 1V8 1V8 QPSI QPSI QPSI Debug Debug Debug GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
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