Patents Assigned to Thermedics, Inc.
  • Extrudable polyurethane for prosthetic devices prepared from a diisocyanate, a polytetramethylene ether polyol, and 1,4-butane diol
    Patent number: 4523005
    Abstract: Reaction product of an aliphatic organic diisocyanate, a high molecular weight polyether polyol (poly tetra methylene ether glycol) and 1,4 butane diol. The resulting polymers have thromboresistant properties, a long flexural life and are extrudable. The polyurethane polymer is ideal for forming transvenous cardiac pacemaker leads, blood bags, intravenous and intra-arterial catheters and tubing, and other shaped devices which must be formed of a blood compatible material.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: June 11, 1985
    Assignee: Thermedics, Inc.
    Inventor: Michael Szycher
  • Actinic radiation cured polyurethane acrylic copolymer
    Patent number: 4483759
    Abstract: The actinic radiation cured composition of this invention comprises a polyurethane acrylic copolymer containing a light scattering or fluorescing material. The polyurethane acrylic copolymer is fully cured and is flexible and elastomeric.
    Type: Grant
    Filed: July 2, 1982
    Date of Patent: November 20, 1984
    Assignee: Thermedics, Inc.
    Inventors: Michael Szycher, Donald J. Dempsey, Jonathan L. Rolfe