Patents Assigned to Blacktoe Medical, Inc.
  • Flexible piezo-electric membrane
    Patent number: 5230921
    Abstract: A piezo-electric flexible membrane is formed by treating a perfluorinated membrane in order to produce a membrane having an electrical resistance greater than 1.times.10.sup.9 ohms. The resultant piezo-electric membrane may be used as an ultrasound transducer.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: July 27, 1993
    Assignee: Blacktoe Medical, Inc.
    Inventors: James R. Waltonen, Ronald W. Schutz