51.   With the help of Aksys founder Rodney Kenley, Twardowski co-designed and patented his home dialysis machine.

52.   Baxter International Inc. says two kidney patients in Texas who underwent treatment on dialysis machines using Baxter filters have died and two others were hospitalized with complications.

53.   Because of a shortage of equipment and resources, state hospitals restrict the use of dialysis machines to patients eligible for transplant.

54.   Beside the bed was a dialysis machine and an oxygen tank.

55.   Dialyzers are hollow filtering tubes that are attached to dialysis machines, which clean impurities from blood of patients with kidney failure.

56.   For some, like the users of dialysis machines, it is a question of life and death.

57.   His other inventions include the heart stent used by Vice President Dick Cheney, a wheelchair that climbs stairs and the first portable kidney dialysis machine.

58.   Kamen already has wowed the medical world with inventions such as a briefcase-sized dialysis machine, a portable insulin pump and a wheelchair that climbs stairs.

59.   Last month, three kidney patients died when contaminated water was pumped into dialysis machines.

60.   Meanwhile, Gomberg has been working to exchange the six used dialysis machines for four new ones.