开云体育

I'm looking at the enclosure requirements.? I understand from Gordon that commercial ventilators use some variation of Luer Lock fittings.

Does anyone know definitively what kind of fitting we should use for the metering air circuits for the pressure transducers?? What diameter tubing have we settled on for the metering air circuits?

I'm looking for?preferably a bulkhead mount fitting that can attach to the chassis.? The inside fitting would preferably be barbed and?connect to the on board pressure sensor by a short length of tubing.? The pressure sensors have a size tolerance of .115-.125 port diameter so I believe 1/8" ID tubing? is appropriate.??

Keep in mind that the smallest ID tubing will give the lowest volume and therefore have the highest dynamic response.

As there are?three fittings. I wonder if different sized fittings should be used to prevent installing the wrong tube in the wrong port.? Is there any standard for this?

As a secondary question the UF prototype appears to be using a shop air chuck to supply the compresed air to the regulator.? Is there a standard "air chuck" in use in hospital rooms for the air supply?

73,
Mike N8WFF

Mike,? there are standard fittings that are pin indexed in the operating room and respiratory therapy, or otherwise size fitted so that you can't put the wrong gas on the wrong line.? ?But what comes out of the BLENDER? is basically a HOSE.? ?So basically what you want to do is have a BARB FITTING at the input of your system somewhere and they will have to connect to that with a hose clamp

As for measurement lines.? ?I don't have the really thin stuff that has luer lock connections.? ?I'm using fuel tubing for very small engines.? ?it is maybe 1/16" ID? Fits on the smallest barbs in the vacuum-tube-T-fitting kit I got from an automobiile shop.??



Gordon