Holding deflate button while squeezing pump
Posted: Fri Feb 21, 2025 3:17 pm
I've seen it written in pretty much every patient's as well as surgeon's manual for AMS 700 CX: "do NOT hold the deflate button and squeeze the pump at the same time!"
Since I have an unimplanted CX laying around I tried it: first I pumped the CX completely hard until it couldn't take any more pumps, then held the deflate button while all the fluid slowly whizzed out and the cylinders were ultimately still full of fluid but not under pressure. Then, I held the deflate button and started pumping more. To my surprise, this actually caused the remaining fluid inside the cylinders to be sucked out and pumped back into the reservoir! I kept pumping while holding deflate until the cylinders were sucked totally flat.
It would be awesome to be able to completely deflate the cylinders like this in my own installed CX, but of course Boston Scientific warns not to. Does anyone know why they say not to? Do they think it damages the system in some way?
Since I have an unimplanted CX laying around I tried it: first I pumped the CX completely hard until it couldn't take any more pumps, then held the deflate button while all the fluid slowly whizzed out and the cylinders were ultimately still full of fluid but not under pressure. Then, I held the deflate button and started pumping more. To my surprise, this actually caused the remaining fluid inside the cylinders to be sucked out and pumped back into the reservoir! I kept pumping while holding deflate until the cylinders were sucked totally flat.
It would be awesome to be able to completely deflate the cylinders like this in my own installed CX, but of course Boston Scientific warns not to. Does anyone know why they say not to? Do they think it damages the system in some way?
