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Pumping and pressure detection using flexible tubes

  • US 5,807,322 A
  • Filed: 09/12/1996
  • Issued: 09/15/1998
  • Est. Priority Date: 03/21/1994
  • Status: Expired due to Fees
First Claim
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1. A peristaltic pump comprising a flexible line carrying fluid to be pumped, cyclical line compression means arranged repeatedly to compress the line, the pump having an input valve upstream of the line compression means and an output valve downstream of the line compression means, pressure sensing means arranged to provide a signal representative of the pressure in the line between the input and output valves, the said signal being supplied to pump monitoring means, and the monitoring means having indicator means arranged to provide a pump status indication;

  • characterised in that the pump monitoring means is arranged to monitor the compression pressure, when both the input and the output valves are closed and pressure is applied to the line by the line compression means.

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