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Innovative pumping system for peristaltic pumps

  • US 5,215,450 A
  • Filed: 03/14/1991
  • Issued: 06/01/1993
  • Est. Priority Date: 03/14/1991
  • Status: Expired due to Fees
First Claim
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1. The combination of an extruded thin wall tubing and a peristaltic pump having at least two rollers, said tubing having an unreinforced outer wall which is directly engaged by said rollers and a low spallative wall resistant to fatigue spalling, said tubing extruded of an elastomeric thermoplastic material formed with a predetermined set curvature having an inner diameter to thin wall thickness ratio of at least 9 to 1, said tubing having a substantially improved pumping lifetime and the ability to withstand an outlet pressure of at least 300 mmHg.

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