Bill of Materials

The complete bill of materials is available here: * Bill of materials - [.csv]

The following tables are summarized versions of the CSV file above, and illustrate the approximate unit cost (state 10/2020) of a single device, together with links to manufactures of the parts:

GRAND TOTAL: $1,753.57

I/O

PVP bill of materials

Component

Subtotal

Example Sourcing Link

Raspberry Pi

$53.00

https://www.mouser.com/ProductDetail/Raspberry-Pi/RPI4-MODBP-2GB-BULK?qs=sGAEpiMZZMspCjQQiuQ1fFuhMF5SnQS%252Ba2qMvWLE7K2IHh0t%252BecCsw%3D%3D

USB-C Charger/cable

$9.88

https://www.mouser.com/ProductDetail/Seeed-Studio/106990291?qs=sGAEpiMZZMtyU1cDF2RqUIiI0Dr66jYXGV7bLfwtXvw%3D

Micro SD Card

$8.29

https://www.amazon.com/dp/B073JWXGNT/ref=twister_B07B3MFBHY?_encoding=UTF8&th=1

7” Display

$249.18

https://lilliputdirect.com/lilliput-779gl-capacitive-touchscreen-hdmi-monitor?search=779gl

Screen Mount

$6.00

https://lilliputdirect.com/lilliput-monitor-accessories/mounting-brackets-stands-and-arms/lilliput-monitor-stand

HDMI for Display

$19.59

https://www.mouser.com/ProductDetail/molex/68786-0001/?qs=ASaot9jrY6HVNv%2F8Wfc2rQ%3D%3D&countrycode=US&currencycode=USD

Mini USB for Display

$5.49

https://www.mouser.com/ProductDetail/matrix-orbital/extmusb3ft/?qs=4ybA1OVEHcjRr1VgZWmnlw%3D%3D&countrycode=US&currencycode=USD

Cable grommet

$10.08

https://www.mcmaster.com/9307K61/

Cable P-clip

$7.00

https://www.mcmaster.com/3225T63/

Keyboard

$49.99

https://m.cdw.com/product/adesso-easy-touch-mini-trackball-keyboard/1839486

$8.15

https://www.grainger.com/product/1FD82?gclid=Cj0KCQjw1qL6BRCmARIsADV9JtZk59QIAYAwMJvQFD1dzPK-rSkWwVBCeo8SBGndpEHDpp2NXDWsr9kaAo-MEALw_wcB&gucid=N:N:FPL:Free:GGL:CSM-1946:tew63h3:20501231&ef_id=Cj0KCQjw1qL6BRCmARIsADV9JtZk59QIAYAwMJvQFD1dzPK-rSkWwVBCeo8SBGndpEHDpp2NXDWsr9kaAo-MEALw_wcB:G:s&s_kwcid=AL!2966!3!264922886802!!!g!439460816581!&gucid=N:N:PS:Paid:GGL:CSM-2293:FAGP9P:20500731

Power strip

$3.63

https://www.parts-express.com/parts-express-3-outlet-strip-with-3-ft-cord-ul-black–125-406?gclid=EAIaIQobChMImKulw4PM6wIVRymzAB1bcwgfEAQYAyABEgLhBPD_BwE

TOTAL

$419

Airway

PVP bill of materials

Component

Subtotal

Example Sourcing Link

Oxygen DISS to 3/8” NPT Adapter

$10.00

www.mcmaster.com/2633N11/

Inlet manifold

$24.56

https://www.mcmaster.com/1023N15/

1/4” NPT Connector (male/male)

$3.89

https://www.mcmaster.com/1455N133/

Teflon tape

$2.62

https://www.mcmaster.com/6802K12/

Manifold plug 1/4” NPT

$4.50

https://www.mcmaster.com/1725K13/

Hex nuts

$3.77

https://www.mcmaster.com/91841A195/

Manifold washers

$10.16

https://www.mcmaster.com/92217A440/

Fixed pressure regulator

$47.94

https://www.mcmaster.com/1777K2

Push-to-connect: 1/4” NPT

$10.96

https://www.mcmaster.com/5225K715/

Pneumatic Tubing

$2.13

https://www.mcmaster.com/50315K71

Push-to-connect: 1/8” BSPT

$10.76

https://www.mcmaster.com/5225K305/

Insp proportional valve

$107.10

https://www.ocpneumatics.com/smc-pvq31-5g-23-01n-h-valve-proportional-pvq-proportional-valve/

Push-to-connect: Inline T-adapter to 1/4” NPT

$7.58

https://www.mcmaster.com/5225K806/

1/4” NPT Connector (female/female)

$9.84

https://www.mcmaster.com/4589K58/

Pressure release valve

$19.89

https://www.mcmaster.com/4277T52

Oxygen sensor

$59.00

https://www.sensoronics.com/products/ss-12a-replaces-teledyne-r22-msa-472062

Emergency breathing (check) valve

$1.05

https://serfinitymedical.com/products/teleflex-medical-one-way-valve-teleflex-medical-1665

DAR filters

$3.44

https://www.bettymills.com/dar-electrostatic-filter-large-350u5865?utm_source=cpc-strat&utm_medium=cpc&utm_campaign=parts&utm_keyword=MON58653900&utm_content=Medical&gclid=Cj0KCQjwsYb0BRCOARIsAHbLPhFDvasl2T-pp983Gj755_cJPpx-yW1j-qtVVfjvdeKrHvaog9WXQzAaAtrJEALw_wcB

Adult Respiratory Circuit w Humidifier Limb

$13.00

Circuit: https://orsupply.com/product/1505

Gas sampling line

$5.01

https://heymedsupply.com/gas-sampling-line-mckesson-16-gsl-each-1/?gclid=CjwKCAjw95D0BRBFEiwAcO1KDNKq_RaPem1c2NjJTQ1T2bLXusnNQXshtMCSO_h0_i7tSfO_Mrw1NRoCkB8QAvD_BwE

Luer lock connector

$20.50

https://www.grainger.com/product/36T564?gclid=EAIaIQobChMI59a98omX6wIVgwiICR3BlQrHEAQYCiABEgJ5WPD_BwE&cm_mmc=PPC:+Google+PLA&ef_id=EAIaIQobChMI59a98omX6wIVgwiICR3BlQrHEAQYCiABEgJ5WPD_BwE:G:s&s_kwcid=AL!2966!3!281698275999!!!g!470577457359!

Luer lock filter

https://catalog.promepla.com/promepla-component/ecb15992 / https://catalog.promepla.com/uploads/medias/plan-ecb15992.pdf

Pressure sensor (for Paw)

$32.00

https://www.mouser.com/ProductDetail/Amphenol-All-Sensors/1-PSI-D1-4V-MINI?qs=BhOZL0NmoSxcjJYCCg1Awg%3D%3D

Tubing connectors

$14.00

https://www.rcmedical.com/viewProduct.cfm?productID=591

Flow sensor

$4.76

https://jakenmedical.com/supplies-accessories/disposable-d-lite-sensor-50-box-896952/

Luer plug

$2.60

https://www.mcmaster.com/51525K311

Luer lock connector for D-Lite

$22.68

https://www.mcmaster.com/5194K32/

Differential pressure sensor for flow

$52.70

https://www.mouser.com/ProductDetail/Amphenol-All-Sensors/5-INCH-D2-P4V-MINI?qs=%2Fha2pyFaduhsP4sNEBOe%2FQFZkD803XhnXMJBb3vmG3Pgxr%2F1EbJo8%252BLI9cfIY1%2Fz

3/4” NPT Connector (male/male)

$3.06

https://www.mcmaster.com/46825K31/

Exp solenoid valve

$115.10

https://www.smcpneumatics.com/VXZ250HGB.html

Exp solenoid brackets

$22.44

https://www.mcmaster.com/3136N157/

Framing & Structural

PVP bill of materials

Component

Subtotal

Example Sourcing Link

80/20 (x4)

$42.28

https://www.mcmaster.com/47065T101

80/20 gusset bracket (x18)

$117.72

https://www.mcmaster.com/47065T663

80/20 rail (x6)

$35.04

https://www.mcmaster.com/47065T101

80/20 button head nuts (packs of 25, x2)

$11.24

https://www.mcmaster.com/47065T905/

Button-head hex screws, pack of 50

$6.03

https://www.mcmaster.com/92949A833/

Socket head screw, pack of 100

$9.66

https://www.mcmaster.com/91292A111/

Button head screws (long), pack of 10

$2.65

https://www.mcmaster.com/92949A275/

Button head screws (short), pack of 25

$8.40

https://www.mcmaster.com/92095A239/

HDPE sheeting

$21.28

https://www.mcmaster.com/8619K423

Lifting handle

$28.76

https://www.mcmaster.com/5190A21/

Screws for lifting handle

$9.69

https://www.mcmaster.com/91274A164/

Leveling mount (4 feet)

$1.89

https://www.mcmaster.com/23015T82/

Nuts for leveling mount

$4.41

https://www.mcmaster.com/91847A029/

PETG for 3d printing

$30.00

TOTAL

$329

Electronics

PVP bill of materials

Component

Subtotal

Example Sourcing Link

Standoffs

$3.76

https://www.mouser.com/ProductDetail/Keystone-Electronics/24424?qs=%2Fha2pyFadujGjYnOBX3ZIG5%252BNlfnctDXUaVF01IeI1E%3D

Meanwell DC Power Supply

$30.66

https://www.mouser.com/ProductDetail/MEAN-WELL/NDR-120-24?qs=sGAEpiMZZMvkjJSSRowFE%252BMaPtHpNQit89EjeOStv9CBsXX2JvUmCQ%3D%3D

DIN Rail

$7.74

https://www.mcmaster.com/8961K17/

DIN washers

$13.94

https://www.mcmaster.com/98025A029/

Sensor board (excluding pressure sensors)

2-layer PCB

$99.00

https://www.4pcb.com/pcb-prototype-2-4-layer-boards-specials.html

12-bit ADC

$10.00

https://www.mouser.com/ProductDetail/Adafruit/1083?qs=GURawfaeGuCmI2li4B6pKg%3D%3D

Voltage splitter U1

$2.00

https://www.digikey.com/product-detail/en/texas-instruments/TL7660CP/296-21857-5-ND/1629031

Instrumentation amplifier U2

$4.00

https://www.digikey.com/product-detail/en/texas-instruments/INA126PA/INA126PA-ND/300992

R3, sensor

$0.00

40 pin Pi header J1

$3.00

https://www.digikey.com/product-detail/en/adafruit-industries-llc/1979/1528-1783-ND/6238003

4x1 header J2

$5.00

https://www.digikey.com/product-detail/en/adafruit-industries-llc/4150/1528-2922-ND/10123801

2x1 header J3

$5.00

Oxygen sensor cable (J4)

$2.00

https://www.coolerguys.com/products/3-pin-fan-cable-extension-12-thru-72-inches?variant=17666421509

330 Ohm resistor R1

$1.00

https://www.digikey.com/product-detail/en/stackpole-electronics-inc/CF14JT330R/CF14JT330RCT-ND/1830338

Capacitors C1,C2

$1.00

https://www.digikey.com/product-detail/en/panasonic-electronic-components/ECA-1EM100B/P19522CT-ND/6109420

Actuator board

2-layer PCB

$99.00

https://www.4pcb.com/pcb-prototype-2-4-layer-boards-specials.html

5V DC/DC Converter

$20.00

https://www.mouser.com/ProductDetail/CUI-Inc/PDQE15-Q24-S5-D?qs=%2Fha2pyFaduiL94u0Ef2I7K4U1Mc9B6IPlz0S4%252BeNn6w9pBF%2FNnZWZTmWI4mUuuL4

Darlington array U1

$2.00

https://www.mouser.com/ProductDetail/Texas-Instruments/ULN2003AN?qs=FOlmdCx%252BAA1wYQ1G8c8hpQ%3D%3D

40 pin Pi header J1

$3.00

https://www.digikey.com/product-detail/en/adafruit-industries-llc/1979/1528-1783-ND/6238003

Screw terminals J2, J3, J4

$4.00

https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/282837-2/A113320-ND/2187973

2x1 header J5

$5.00

Capacitor C1

$1.00

https://www.digikey.com/product-detail/en/panasonic-electronic-components/EEU-FR1C101B/P15330CT-ND/3072210

Capacitors C2,C3

$1.00

https://www.digikey.com/product-detail/en/panasonic-electronic-components/EEA-GA1H6R8/P14509-ND/2504598

Speaker

$20.00

https://www.amazon.com/Z50-smartphone-tablet-laptop-Grey/dp/B00EZ9XLF8/ref=sr_1_1?dchild=1&hvadid=78408975043567&hvbmt=be&hvdev=c&hvqmt=e&keywords=logitech+z50&qid=1595253882&sr=8-1&tag=mh0b-20

TOTAL

$347

Specialized Tools

PVP bill of materials

Component

Subtotal

Example Sourcing Link

M16 tap

$47.00

https://www.mcmaster.com/26015A236

1/4” NPT tap

$25.00

https://www.mcmaster.com/2525A173-2525A173

3/4” NPT tap

$71.00

https://www.mcmaster.com/2525A176/

1/4”-28 tap

$6.99

https://www.mcmaster.com/26955A88/

Ingmar QuickLung Test Bellows

$1,500.00

https://www.ingmarmed.com/product/quicklung/

Etc.

PVP bill of materials

Component

Subtotal

Example Sourcing Link

PETG for 3d printing

$30.00

Commercial PEEP valves

Adult Test Lung

https://www.ebay.com/itm/Adult-Test-Lung-LNG600P-Newport-Medical-Instruments-a-division-of-Covidien/264679192553?hash=item3da01bf7e9:g:9FEAAOSw~4hbtoaY&fbclid=IwAR35qedvGn5JODcB-F5Kurw0ZH11KOdH6UpmUypnj2lWZcv5GzIfVlEDSaw

Air compressor for initial testing

https://www.dewalt.com/products/storage-and-gear/air-compressors/16-hp-continuous-225-psi-45-gallon-compressor/d55146