Peristaltic pump and tube loading system

  • US 5,759,017 A
  • Filed: 01/28/1997
  • Issued: 06/02/1998
  • Est. Priority Date: 01/31/1996
  • Status: Expired due to Term
First Claim
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1. A peristaltic pump and tube loading system comprising:

  • a housing havingtwo, spaced, tube exit openings,an inner cavity shaped to receive and support a tube in a U-shaped configuration with said tube extending through said openings,opposed inner bearing surfaces,a cover to close an access opening in said housing in a closed position and movable to an open position for insertion of a tube into said housing and removal from said housing,a pair of side walls each hinged at a hinged end portion for pivotal movement laterally away from one another between a latched position and a spread position to facilitate loading said tube into said housing and removal of said tube from said housing in said spread position with said cover in an open position, each side wall having a latch end portion carrying a first latch portion that releasably engages a second latch portion on said housing to rigidly lock each side wall against movement in said latched position, anda rotor rotatably mounted in said housing for rotation about an axis of rotation, said rotor having a radial arm and two rollers journaled for rotation on opposite ends of said arm so as to be disposed at positions located 180 degrees from one another, said tube being squeezed between said bearing surfaces and said rollers upon the rotation of said rotor to pump a fluid in said tube, said housing having a base, a hinge block extending up from a first end portion of said base and having first inner surfaces and a guide and latch block extending up from a second end portion of said base opposite and in spaced relation to said hinge block, said guide and latch block having said two slots opening in the top thereof to provide said tube exit openings.

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