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Contrast media injector

  • US 5,249,579 A
  • Filed: 12/20/1990
  • Issued: 10/05/1993
  • Est. Priority Date: 03/09/1990
  • Status: Expired due to Term
First Claim
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1. Apparatus for delivering gas into an animal'"'"'s cardio-vascular system to enable the gas to function as an angiographic contrast medium comprising:

  • a source of the desired gas,a catheter adapted to be coupled into the animal'"'"'s cardio-vascular system,injection control means responsive to the cardiac cycle to provide a first control signal during systole and a second control signal during diastole,valve means connecting said source to said catheter,said valve means being responsive to said control signals to provide said gas at a first rate during systole and a second rate during diastole.

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