There is a small box which contains an extra earpick and a clip.Open the side cover and put the earpick in, turn on ultraviolet ray to sterilize the earpick by pushing the switch backwards.
He was able to spinal tap (inaudible) vertebrae virtual reality with radiology to fuse a radiological solution, even if he had to bend over backwards to make it work.
The blood's still leaving the head from other pathways so flowing backwards through a jugular vein may not be dangerous, but he says it does show a change in how blood moves through the body while in space.