https://www.tetrabio.org/about daily 0.75 2025-06-05 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1596843943525-95RBS0BC06NXWP9MHRPE/_MMR0123.jpg About - Our Mission At Tetra Bio Distributed, we are committed to collaborative, open source development. We make all of our work and resources publicly available. Our team of engineers and medical professionals work together to meet the rigor of FDA medical device standards, while remaining committed to our open-source values. https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1597090180121-M69TK9FUAC7OA0PCQG62/_MMR0108.jpg About - Our Story The founding team of Tetra Bio Distributed met in March 2020 in the Helpful Engineering incubator. Focused on alleviating the medical ventilator shortage, the team designed a device that could quadruple the utility of a single ventilator. The project became known as the Tetra Ventilator Splitter, and became the first open-source product developed by its namesake organization. https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1596844019236-FQJDASJ82ZEXEDQHGNOJ/_MMR0169.jpg About - What We Make Our team of talented engineers and designers produce open-source documentation and instructions for building high quality emergency medical devices. All of our products can be replicated and produced with widely available electronic components, 3D resin printers, biocompatible resin, and hand tools. https://www.tetrabio.org/contact daily 0.75 2024-04-05 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1597090928610-3Y21E728NZUE8J6SDXA3/Slack+logo-01.png Contact https://www.tetrabio.org/home daily 1.0 2025-09-13 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309585893-5RMSZEPZ9DUOMSYPFPNL/4_11_20-10.jpg https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/2f8c010c-02bd-4c4f-8bf9-e5d84f97ac8c/MMR00133-edited_lower_res.png https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1597102403360-K9TLYCWTS82LEF45J2P2/Tetra+Logo+Black+with+Transparent+Background+500+x+500+px.png https://www.tetrabio.org/open-source daily 0.75 2020-08-25 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598381010474-09W5AZVU9WCRQEPZ6QUW/Slack+logo-01.png Open Source - Slack Introduce yourself on our Slack channel and collaborate with the team. https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598381356585-IYWMR6Y3PLHKJA7GRCQO/git+logo-02.png Open Source - GitHub Explore our Github and directly contribute to the project. https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598381156438-OLPXE0VCZLIYGBIHSECC/Docsy.png Open Source - Documentation Check out our project documentation for a deeper understanding of Tetra Bio Distributed’s process and the Vent’s engineering. https://www.tetrabio.org/tetra-vent-splitter daily 0.75 2025-06-03 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1596847421758-KQCYV0IKK297BI7PCTH6/Prototype+on+Cart.13.png Tetra Vent Splitter https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1616778197516-S9G0AZGSXB4DTPBMEF10/Screen+Shot+2021-03-26+at+9.59.04+AM.png Tetra Vent Splitter https://www.tetrabio.org/kit daily 0.75 2023-03-18 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598289315691-1TWIG2ELU5WO22SH958X/April+4.jpg Tetra Vent Splitter Kit - Contribute your expertise https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598289480692-MOOJDU4AENLQYASEBFB7/April+11.jpg Tetra Vent Splitter Kit - Contribute financially https://www.tetrabio.org/press-kit daily 0.75 2020-08-25 https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598308388495-98CFYWZY312W45XILDND/4_4_20-7.jpg Press Kit April 4, 2020 (Photo 1) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598308388151-6UIB2QYRKE2Y3LBWZLXF/4_4_20-3.jpg Press Kit April 4, 2020 (Photo 2) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311754027-F0F9DLP35QJSL8YYT06L/Tetra_Perspective_P1_P2.jpg Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598308382515-MBB830AF3RMYUB3I3YMN/4_4_20-5.jpg Press Kit April 4, 2020 (Photo 3) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311869374-OKFJJNL6A8C3D6DNAGWN/Tetra+Vent+Splitter.6.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598308384219-CFV63YJED20T60MRO500/4_4_20-6.jpg Press Kit April 4, 2020 (Photo 4) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598312283245-0IB869686I7MKDLGF2IT/Vent+splitter+in+hospital.4.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309584352-12LSD5C9VEO0YW3IEQHF/4_11_20-4.jpg Press Kit April 11, 2020 (Photo 5) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311867818-4J314SRSOC6U2VSQQTJF/Tetra+Vent+Splitter.3.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309587386-1D6377U9Z1C3N0EV56PT/4_11_20-7.jpg Press Kit April 11, 2020 (Photo 6) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311887163-TFFO65LT6EI6TZ54BD3K/Prototype+on+Cart+Right+View.27.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309585893-5RMSZEPZ9DUOMSYPFPNL/4_11_20-10.jpg Press Kit April 11, 2020 (Photo 7) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311867222-IB5L7UXFGBXNTKCW8TUK/Tetra+Vent+Splitter.5.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309587877-JR0J01C077ILPU9K57ZB/4_11_20-13.jpg Press Kit April 11, 2020 (Photo 8) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311869898-G3E11UXPQNEGL4N5NQIL/Tetra+Vent+Splitter.4.png Press Kit https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309758628-HM6KGKIQC0IJHUBTQOLK/4_17_20-3.jpg Press Kit April 17, 2020 (Photo 9) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309759738-FPFL6VH4WIV4S5B6IS59/4_17_20-4.jpg Press Kit April 17, 2020 (Photo 10) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309759537-VUCF2WSYY9L4K2ZM0095/4_17_20-6.jpg Press Kit April 17, 2020 (Photo 11) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309760129-BIGBUDIOR780II97R5JQ/4_17_20-9.jpg Press Kit April 17, 2020 (Photo 12) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309820134-8BT179S1XWDXS7KKHOFF/4_19_20-2.jpg Press Kit April 19, 2020 (Photo 13) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309875626-7T4XB6JF4MDSO2A97KVF/4_22_20-1.jpg Press Kit April 22, 2020 (Photo 14) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309928736-V3Z9P1MFLZQ8NPQ821S4/4_24_20-1.jpg Press Kit April 24, 2020: (from the left) Mark Roden, Daniel Stemen, and Catherine Yunis testing the ____ at ____ Hospital. (Photo 15) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309930674-R1OF1SQK2OTJ0ZIYPW5P/4_24_20-2.jpg Press Kit April 24, 2020: Catherine Yunice at ___ hospital testing the ____. (Photo 16) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598309929096-QU2QBCASQ3X5MTDKYEM7/4_24_20-3.jpg Press Kit April 24, 2020 (Photo 17) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310033519-KBTT8TMNYIYSPP638NM2/5_09_20-1.jpg Press Kit May 9, 2020 (Photo 18) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310025139-CJZPGBZUPU8MMW3NMBU8/5_09_20-3.jpg Press Kit May 9, 2020 (Photo 19) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310113765-AHNM2WOEGB89PAE2NPIX/7_14_20-1.jpg Press Kit July 14, 2020: The aluminum housing for the alpha prototype was fabricated by John Grano in Denver, CO. (Photo 20) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310111291-ST1KK96DOF5WYOJHRDDF/7_14_20-2.jpg Press Kit July 14, 2020: The aluminum housing for the alpha prototype was fabricated by John Grano in Denver, CO. (Photo 21) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310738625-YT4ROSNXPXNLO281JQIK/7_18_20-1.jpg Press Kit July 18, 2020 (Photo 22) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310747301-DW26WR091QE67X0AOXJB/7_18_20-5.jpg Press Kit July 18, 2020 (Photo 23) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310752605-QUAR9ASLRKPNQB08I3UY/7_18_20-7.jpg Press Kit July 18, 2020: Assembling the PCB in Los Angeles, CA. (Photo 24) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310764721-HO07T70TXW5931RSDBCE/7_18_20-13.jpg Press Kit July 18, 2020 (Photo 25) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310771497-XB46I4QXG6QSPGE19FZT/7_18_20-23.jpg Press Kit July 18, 2020 (Photo 26) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310775682-QTGAYXC6B3DDQHA5RXS3/7_18_20-17.jpg Press Kit July 18, 2020 (Photo 27) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598310793067-DOMH5ZBMBSDP2BYP647O/7_18_20-3.jpg Press Kit July 18, 2020 (Photo 28) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311044992-KADF0CXUKKIXHESSQK6P/7_20_20-9.jpg Press Kit July 20, 2020: Assembling the resin printed shutoff valve. (Photo 29) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311109960-5EXB5M4LI18OU7JRJX3B/7_26_20-1.jpg Press Kit July 26, 2020: Detail of the port hole covers on the alpha prototype housing. (Photo 30) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311182763-RVVTZX14VISVZRH0YDB6/8_13_20-1.jpg Press Kit August 13, 2020: A peak into the internal structure of the Tetra Splitter as we assemble the alpha prototype. (Photo 31) https://images.squarespace-cdn.com/content/v1/5f2dbec75dae54719cf4550b/1598311182591-C28N0EJVTU5ZZITD3G74/8_13_20-2.jpg Press Kit August 13, 2020: The alpha prototype housing of the Tetra Splitter ready for assembly. 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