Peristaltic pump comprising members for locating a tube

• US 20060002805A1
• Filed: 06/14/2005
• Published: 01/05/2006
• Est. Priority Date: 06/30/2004
• Status: Active Grant

• Current Assignee: EMD Millipore Corporation (Merck & Co., Inc.)
• Original Assignee: Millipore Corporation (Merck & Co., Inc.)
• Inventors: Olivier, Stephane, Schann, Christian, Clauss, Christian
• Granted Patent: US 7,467,932 B2
• Time in Patent Office: Days
• US Class Current: 417/477.900
• CPC Class Codes: F04B 43/1284 Means for pushing the backing-plate against the tubular flexible member

Abstract

The peristaltic pump (1) comprises a rotor with rollers, a mobile jaw having an open position and a closed position, and further comprises, on each side of the rotor, a locating member for said tube adapted to receive it when it is pressed in and to allow it to slide in the longitudinal direction in which the locating member extends, said locating members being disposed in a line between the rotor and the mobile jaw in the open position.

Claims

1. A peristaltic pump comprising a rotor incorporating rollers, a mobile jaw having an open position, in which it is moved away from the rotor so that a tube on which said pump must act may be placed between the jaw and the rotor, and a closed position, in which the mobile jaw is moved toward the rotor so that said tube is engaged between a curved bearing surface of the mobile jaw and at least one roller of the rotor,

The pump further comprising, on each side of the rotor, a locating member for said tube adapted to receive the tube when it is pressed in and to allow the tube to slide in the longitudinal direction in which the tube extends, said locating members being disposed in a line between the rotor and the mobile jaw in the open position.

2. The peristaltic pump according to claim 1, characterized in that the locating members are fastened to the mobile jaw.

3. The peristaltic pump according to claim 1, characterized in that the locating members are parts of a protective cap adapted to cover the mobile jaw and the rotor incorporating the rollers, including in the open position.

4. The peristaltic pump according to claim 1 characterized in that the locating members are parts of a protective cap adapted to cover the mobile jaw and the rotor incorporating the rollers, including in the open position and the protective cap is rigidly connected to the mobile jaw.

5. The peristaltic pump according to claim 1, characterized in that the the locating members are parts of a protective cap adapted to cover the mobile jaw and the rotor incorporating the rollers, including in the open position and protective cap comprises a rectilinear groove joining the locating members.

6. The peristaltic pump according to claim 1, characterized in that the rotor includes a flat and the pump further comprises means for positioning the least along said line.

7. The peristaltic pump according to claim 1, characterized in that each locating member comprises a depression delimited by a bottom and two facing lateral walls each comprising a retaining boss.

8. The peristaltic pump according to claim 1, characterized in that it further comprises a motor adapted to drive the mobile jaw from its open position to its closed position and from its closed to its open position.

9. The peristaltic pump according to claim 1, characterized in that it further comprises a motor adapted to drive the mobile jaw from its open to its closed position and from its closed to its open position and said motor is connected by an irreversible gear to a cam cooperating with the mobile jaw.

10. The peristaltic pump according to claim 1 characterized in that it further comprises a motor adapted to drive the mobile jaw from its open to its closed position and from its closed to its open position and said motor is adapted to place the mobile jaw in a position in which it is free to be separated from the pump.

11. The peristaltic pump according to claim 1, characterized in that it comprises means for clamping a web of the tube with a plurality of passages connected by the web.