PRESS FOR A DEFORMABLE BAG

• US 3,734,351 A
• Filed: 07/26/1971
• Issued: 05/22/1973
• Est. Priority Date: 08/03/1970
• Status: Expired due to Term

• Current Assignee: Jean Joseph (Bordeaux-Cauderan Gaudin
• Original Assignee: Jean Joseph (Bordeaux-Cauderan Gaudin
• Inventors: Gaudin, Jean Joseph (Bordeaux-Cauderan
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Martin, Larry
• Application Number:
  US05/166,112
• Time in Patent Office: 666 Days
• Field of Search: 222/93,95,96,103 128/214,DIG.12 100/268
• US Class Current: 222/103
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence

Abstract

A press for a deformable bag, particularly a blood bag, has two flaps articulating on a common hinge and urged together by pressure means to clamp a bag placed between them. Associated with the pressure means are control means adapted to make a determined pressure threshold perceptible to an operator.

Claims

1. A press for a deformable blood bag comprising two flaps, a common hinge pivotally connecting said flaps to one another, a strap fastened to one of said flaps remote from said hinge, a tapped bush fixed to said strap, a manually rotatable threaded clamp screw engaged by a screw thread in said bush and extending in the direction of the other flap, a support plate which is in frictional contact with said other flap, and a calibrated spring disposed between and acting between said clamp screw and said support plate, the support plate being provided with engaging means adapted to connect said plate for rotation with the threaded clamp screw after a predetermined axial movement of the said thReaded clamp screw.

2. A press according to claim 1, wherein the threaded clamp screw has hollowed in it a blind axial recess against which the calibrated spring bears and which terminates in a radial collar adapted to come into contact with the support plate when said spring is compressed.

3. A press according to claim 1, wherein said engaging means adapted to connect the support plate on the threaded clamp screw comprise a bent finger carried radially by said screw and a pin carried radially by said plate, said pin being positioned in the circular path followed by said bent finger.

4. A press according to claim 1, wherein centering means are provided between the support plate and said other flap, and wherein said means are formed as a boss carried by one of said parts and a recess complementary to said boss provided in the other part, in the axis of said plate.