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Methods for preventing the introduction of air or fluid into the body of a patient

  • US 4,722,725 A
  • Filed: 05/11/1987
  • Issued: 02/02/1988
  • Est. Priority Date: 04/12/1983
  • Status: Expired due to Fees
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1. A method for preventing the introduction of ambient air into the vascular system of a patient through catheter means introduced into said vascular system during intravenous or intra-arterial procedures which comprises:

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