×

Device to heat infusion and transfusion solutions

  • US 4,709,135 A
  • Filed: 09/20/1985
  • Issued: 11/24/1987
  • Est. Priority Date: 09/21/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. In a device for heating infusion and transfusion solutions that includes a heat exchange unit, means for electrically heating said unit and means for automatically controlling the temperature of said unit, the improvement which comprises:

  • (a) said heat exchange unit having a cylindrical outer surface with a groove running helically around said outer surface, said groove being cut into said outer surface so that the interior contour and dimensions of the groove will removably hold a tube with a clamping effect,(b) a flexible infusion tube seated in said groove through which said infusion or transfusion solution is adapted to flow,(c) a sheet of heat-insulating material in the form of a sleeve surrounding said outer surface, said sleeve being pressed in close proximity to the surface portion of said tube that projects above the grooves in said exterior surface of said heat exchange cylinder, and(d) an insertion safety clamp at a first terminal of said groove and an exit safety clamp at a second terminal of said groove, said clamps being both formed of small plates partially covering said groove, said plates being secured adjacent to said groove on a surface of first and second casing portions, said casing portions being arranged on opposite end faces of said heat exchange unit, said casing portions holding said heat exchange unit therebetween with said cylindrical outer surface exposed.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×