rapid-prototyping response tracking issueshttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues2021-10-06T04:49:38Zhttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/64fires2021-10-06T04:49:38ZNeil GershenfeldfiresFrom pandemic to literal fires -- I've been approached with a similar question to the one that led to the formation of this group, asking about rapid-prototyping responses to help with the urgent needs of fire-fighting and fire-fighters....From pandemic to literal fires -- I've been approached with a similar question to the one that led to the formation of this group, asking about rapid-prototyping responses to help with the urgent needs of fire-fighting and fire-fighters. Given the potential overlap I'm announcing here an exploratory meeting that we're going to have 12:30P EDT Tue Sept 28 in:
meeting ID: 5596119354, password: 1234
can connect via browser: http://ng.cba.mit.edu/neil/video
or: https://zoom.us/j/5596119354
or app: https://zoom.us/download
or phone: +1 (669) 900-6833
This will present a range of requirements, and discuss potential projects.https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/62PPE Fatigue and Human Factors: Call for Ideas/Help2020-08-07T14:57:25ZWilliam BakerPPE Fatigue and Human Factors: Call for Ideas/HelpGeneral Problem: PPE fatigue, including that amongst healthcare workers (HCWs)
This includes HCWs and general public exhibiting more frequent lapses in proper mask use, ranging from no mask use to improper mask use (inadequate mask, or ...General Problem: PPE fatigue, including that amongst healthcare workers (HCWs)
This includes HCWs and general public exhibiting more frequent lapses in proper mask use, ranging from no mask use to improper mask use (inadequate mask, or worn down under nose or even chin).
This is a call for those in this group with human factors expertise or just good ideas to address this issue. A great example of this category of work was presented by Jeremy Howard on July 14, his [Masks4all project 'the science' section](https://masks4all.co/facts/)
Specific Problem in Hospitals:
HCWs exhibiting lapses in PPE use, especially in break rooms, resulting in virus transmission amongst staff. One example being the recently publicized event at [Baystate](https://www.baystatehealth.org/covid19/cluster-information) Medical Center (but can/does happen elsewhere). The outbreak affected at least 13 nurses in a non-covid unit, and per Baystate:
> Based on a review by our hospital epidemiologists, we believe the group of cases on the unit resulted from several factors: travel to an area within the United States identified as a “hot spot” and staff who convened in a breakroom and removed their masks without observing proper social distancing protocols.
>
> These simple lapses were able to happen in spite of our screening employees for fever and other symptoms before every shift, mandating mask usage and social distancing throughout the facility.
I tell my colleagues that you could wear your PPE diligently for 7 hours and 59 minutes of your shift but that one minute of lapse could risk your or your patients or colleagues safety.
Challenge to this greater CBA community:
- Ideas/suggestions to study/address PPE fatigue amongst HCWs and/or general public (some issues/interventions likely will overlap)
- PPE specific factors for lapses vs general human factor related (i.e. issues specific to the PPE product vs general compliance to 'rules')
- Are 8 hour shifts in full PPE reasonable?
- Are communal break rooms a thing of the past?
Any/all ideas, feedback and/or interest in collaboration welcomehttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/61open pulse ox measurement instrumentation + algorithms2020-08-04T15:38:41ZNeil Gershenfeldopen pulse ox measurement instrumentation + algorithmsbias, access, ...bias, access, ...https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/60bunnyPAPR, $10-$30 public use Viral Helmet. (presenting Aug4)2020-08-04T16:14:38ZHowardG ChongbunnyPAPR, $10-$30 public use Viral Helmet. (presenting Aug4)This is a stub issue to "pre-discuss" and "post-discuss" bunnyPAPR.
I'll be presenting on [Aug4 for bunnyPAPR](https://gitlab.cba.mit.edu/pub/coronavirus/tracking). Feel free to look at our tech.
It is a doctor-designed, in-use in hos...This is a stub issue to "pre-discuss" and "post-discuss" bunnyPAPR.
I'll be presenting on [Aug4 for bunnyPAPR](https://gitlab.cba.mit.edu/pub/coronavirus/tracking). Feel free to look at our tech.
It is a doctor-designed, in-use in hospitals, new PAPR design that uses about 30-60L/min (instead of standard 115L/min+) by using a flexible hood. (Bag collapses in deep exhale, no negative pressurization, tested.) We have about 30 users in 3 countries. Please take a look and let me know if you have any questions.
### LINKS
* https://devpost.com/software/bunny-papr (5 min video)
* https://bunnypapr.org (public facing site)
* https://tinyurl.com/bunnyPAPRdisclosuresv1 (extra videos)
(updated 07/28, 2pm PDT)
### ASKS
We already have an inventory of about 400 of these and we know they work (see video).
- USERS/ LEVEL 2 TEST. Our biggest needs right now are getting the word out and finding users who want to use these for a Level 2 test. We have plenty of Level 1 tests: individual users. A Level 2 test is larger scale, like 10+ users in the same setting.
- A partner like a Gates Foundation or Clinton Global Foundation could go a long way in credibility and finding testing partners. We are working ur networks and hae a link with a UCSF HIV/AIDS researcher who has partners in Uganda.
- Ideal Level 2 testers: a private/small school. An Amazon.com warehouse. A meatpacking plant. A sports stadium (NBA). An airline. Having somewhere where aerosol risk is high because of confined spaces.HowardG ChongHowardG Chonghttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/59Geometry for Helmet-Based Ventilation2020-07-17T20:35:41ZJonathan JilesenGeometry for Helmet-Based VentilationJust watched this weeks video. I am willing to set up a simulation for helmet-based ventilation to show CO2 retention or leakage. I require geometry of helmet though as either CAD or mesh. @Zaid.AltawilJust watched this weeks video. I am willing to set up a simulation for helmet-based ventilation to show CO2 retention or leakage. I require geometry of helmet though as either CAD or mesh. @Zaid.Altawilhttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/58Usability study tips for https://gitlab.cba.mit.edu/alfonso/covid-isolation-box2020-07-15T01:19:40ZWilliam BakerUsability study tips for https://gitlab.cba.mit.edu/alfonso/covid-isolation-boxWe are close to field testing (IRB exempt status) the *Covid Isolation Box*[](https://gitlab.cba.mit.edu/alfonso/covid-isolation-box) and are looking for any advice people can offer regarding usability testing and/or human factors assess...We are close to field testing (IRB exempt status) the *Covid Isolation Box*[](https://gitlab.cba.mit.edu/alfonso/covid-isolation-box) and are looking for any advice people can offer regarding usability testing and/or human factors assessments. The assessment will either involve a survey (online) or structured interview of staff involved in assembly/use of the boxes. (We aim to have separate staff assemble the boxes; physicians will be using them).
Assembly instructions are on the above linked project page and here's a [link to an instructional video](https://mymedia.bu.edu/media/COVID+Isolation+Box/1_xxim7qvw).
Usability issues faced (and some addressed) in simulation (and reported in other intubation box designs) include:
1. Arm holes too small, difficult to maneuver arms inside box (v14 improved, has one bigger hole for arms)
2. Box not high enough for manipulating tubes/stylets (v14 made taller)
3. Difficult for assistant to aid proceduralist/laryngoscopist
4. Box didn't rest on narrow stretcher (box wider), so had to develop secondary piece of equipment (board); now potential issue as requires additional steps.
5. Extra time involved in organizing equipment given constraints of box (compared to no box; not necessarily compared to other boxes).
we did not test 'usability' of box assembly and/or disposable in simulation but are interested in testing it in live environment. We have 30 boxes to test.
Appreciate advice/input/resources
(P.S. we are aware of the [recent article on the potential downside of isolation boxes](https://www.onlinelibrary.wiley.com/doi/10.1111/anae.15188) not sure how our box would perform from this perspective given the blue paper drape flap that we tape/use to cover the head of bed arm hole (theoretically limiting spread to person doing procedure).https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/57blowers2020-07-07T12:18:36ZNeil Gershenfeldblowers- CPAP+ blower
- 80L/min against 2 PSI
- ~$100
- HEPA filter
- online instrumentation
@chris.howard- CPAP+ blower
- 80L/min against 2 PSI
- ~$100
- HEPA filter
- online instrumentation
@chris.howardhttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/56Rapid-prototyping response meetings2021-09-30T02:34:09ZNeil GershenfeldRapid-prototyping response meetingsReminder, we paused covid rapid-prototyping response meetings as the pace of projects slowed down. No meeting planned for tomorrow, Tuesday June 23.
But there is enough of a queue of topics accumulated to schedule one for the week after...Reminder, we paused covid rapid-prototyping response meetings as the pace of projects slowed down. No meeting planned for tomorrow, Tuesday June 23.
But there is enough of a queue of topics accumulated to schedule one for the week after that, so we will meet 10:30A EDT Tuesday June 30, as usual at:
meeting ID: 5596119354, password: 1234
can connect via browser: http://ng.cba.mit.edu/neil/video
or: https://zoom.us/j/5596119354
or app: https://zoom.us/download
or phone: +1 (669) 900-6833
Let me know if you have any updates to add to that agenda.https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/55Looking for opinions on Ion generators as a virus mitigation solution.2020-06-16T12:32:29ZJonathan JilesenLooking for opinions on Ion generators as a virus mitigation solution.https://global.sharp/pci/en/certified/pdf/viruses_01.pdf
There seems to be a lot of interest in dumping a load of ions into HVAC units from the industry. How effective is this really and are there side effects or other issues related to...https://global.sharp/pci/en/certified/pdf/viruses_01.pdf
There seems to be a lot of interest in dumping a load of ions into HVAC units from the industry. How effective is this really and are there side effects or other issues related to doing this?
Thank you,
Jonathanhttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/54Pulse Ox2020-06-16T01:50:30ZNeil GershenfeldPulse Oxbest practices, risks, ...best practices, risks, ...https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/53Active STEAM Learning2020-06-09T15:14:09ZNeil GershenfeldActive STEAM Learningmolecular biology, diff eq, nanoscale imaging, ...molecular biology, diff eq, nanoscale imaging, ...https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/52PPE waste2022-02-03T19:32:04ZNeil GershenfeldPPE waste@kpopovich45 has agreed to help curate looking at PPE waste -- how much is being produced, where does it go, is there any hope of recycling, are there materials that might reduce waste, ...
Who knows what? Who wants to help?
We'll look...@kpopovich45 has agreed to help curate looking at PPE waste -- how much is being produced, where does it go, is there any hope of recycling, are there materials that might reduce waste, ...
Who knows what? Who wants to help?
We'll look at this as a topic next week.https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/51Utah nano sensors2020-05-18T18:29:45ZNeil GershenfeldUtah nano sensorsWhat can, who wants to test what virus nano-sensorsWhat can, who wants to test what virus nano-sensorshttps://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/50weekly time2020-05-08T12:50:15ZNeil Gershenfeldweekly timeIs 11:00A EDT best? Prefer 10:00A EDT?Is 11:00A EDT best? Prefer 10:00A EDT?https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/49DIY Bubble Point testing of filter media2020-06-11T12:27:16ZTim ButterworthDIY Bubble Point testing of filter mediaA colleague has been working with a group in South Africa sewing cloth masks from fabric of unknown provenance. It's far from ideal, but they're making do with what they have. They're unsure how best to determine which fabrics are adequa...A colleague has been working with a group in South Africa sewing cloth masks from fabric of unknown provenance. It's far from ideal, but they're making do with what they have. They're unsure how best to determine which fabrics are adequate.
Bubble point testing is a pretty well established method of evaluating membrane porosity. I'm curious if the technique could be applicable for mask filters. If so, could this be an avenue for an ultra low cost filter test?
My quick thought for something that could be done at home was:
* Take two empty soda bottles and fill one with water.
* Print an adapter that joins the two and can hold a piece of fabric between them.
* Start setting weights on top of the air bottle until you observe bubbles forming on the water side.
* We would need to correlate those weights against known filtration media, but they should give us an indication of porosity.
Does this sound like an idea worth exploring?https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/48Printing parts on a markforged printer2020-04-30T15:07:13ZTim ButterworthPrinting parts on a markforged printerHi @zfredin,
I appreciate your offer to help with some parts. Attached are three models I'd love to have printed on your markforged printer in their Onyx material. I'd love to have 4 copies of this part:
[Finger_Rod_Mount.stl](/uploads...Hi @zfredin,
I appreciate your offer to help with some parts. Attached are three models I'd love to have printed on your markforged printer in their Onyx material. I'd love to have 4 copies of this part:
[Finger_Rod_Mount.stl](/uploads/17731f51c3265cd153a613faee954820/Finger_Rod_Mount.stl)
And two each of these parts:
[Left_Stainless_Finger_Mount.stl](/uploads/20a9b9a04ad5e6edd2cd2294916329c2/Left_Stainless_Finger_Mount.stl)
[Right_Stainless_Finger_Mount.stl](/uploads/c30a6711f25fd3ec8e453aab3ef485ea/Right_Stainless_Finger_Mount.stl)
if at all possible. I also attached build files (.mfp) if you want to print off a USB rather than through eiger.
[Finger_Rod_Mount.mfp](/uploads/9fd12ef2f29f8a2e0900659917162c6c/Finger_Rod_Mount.mfp)[Stainless_Finger_Mounts.mfp](/uploads/070b1813e00f0bb3c60b8f21c8f3ff07/Stainless_Finger_Mounts.mfp)
I sliced at .2mm layer height with other settings left to default. N.B. the .mfp each has two parts, so I'd only need two prints of each build.
In total this would be ~4 days of machine time - if I'm asking for too much please let me know!https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/47Need of CT or other 3D imaging of filter media2020-05-12T13:28:59ZJonathan JilesenNeed of CT or other 3D imaging of filter mediaWe believe that we have process for predicting the pressure drop and filter efficiency of different filter materials based on 3D scanned geometry of the filter. However, we require a sample of geometry with known properties to test this ...We believe that we have process for predicting the pressure drop and filter efficiency of different filter materials based on 3D scanned geometry of the filter. However, we require a sample of geometry with known properties to test this capability. The 3D data can be a CT scan or other grey/black and white images series.
@camblackburn would you be able to get this?https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/46Swab testing. What do we have and what do we need.2020-05-01T12:07:45ZAlfonso Parra Rubioalfonso.parra@cba.mit.eduSwab testing. What do we have and what do we need.# What do we have
Hi @all. If any of you have swabs and want to test them, we are happy to test them and post here the results. So far, we have got 2 different companies providing us multiple versions of their swabs. Check here the test...# What do we have
Hi @all. If any of you have swabs and want to test them, we are happy to test them and post here the results. So far, we have got 2 different companies providing us multiple versions of their swabs. Check here the test done:
https://gitlab.cba.mit.edu/alfonso/swab-testing-for-covid-19
# **What do we need**
We need standards and experiments to quantify and validate the particle collection. Any person with that information that wants to share it with me can find me here : aprubio@mit.edu
Thanks a lot!https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/45What should Josef do next?2020-05-05T02:06:58ZNeil GershenfeldWhat should Josef do next?https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/issues/44household DIY masks, DIY disinfection, efficacy2020-04-23T23:36:41ZAlan Hanhousehold DIY masks, DIY disinfection, efficacyI've noticed that there's a lot of hearsay about what DIY measures are effective for average person w/o a whole ton of data to back up any claims.
@camblackburn , I recall you mentioned wanting to collect some data at some point on hous...I've noticed that there's a lot of hearsay about what DIY measures are effective for average person w/o a whole ton of data to back up any claims.
@camblackburn , I recall you mentioned wanting to collect some data at some point on household DIY masks (t-shirts, common filters, scarves, etc.) and their efficacy? Did you end up creating a repository for those sort of findings?
On a related note, do you know of any testing being done on DIY disinfection procedures? I've seen ideas for spraying down objects with 70% isopropyl, sticking used masks in glass jars outside in the sun (UV), etc.