Please download the dossier by clicking on the dossier button x
×

Catheter head-type transducer

  • US 4,191,193 A
  • Filed: 02/22/1977
  • Issued: 03/04/1980
  • Est. Priority Date: 02/29/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. A catheter comprising a tube having a length and a tip, and a transducer on said tip which is comprised of a pair of organic high polymer filmlike piezoelectric elements being mounted on each opposite face of a rectangular shim having feet at each end fixed to and raising the piezoelectric elements from a relatively undeformable inner wall of the catheter tube so that said piezoelectric elements are centrally distorted in response to fluid pressure exerted on said tip, said shim being fixed to the inner wall of the catheter tube at the catheter tip, said piezoelectric elements being adhered to said shim with opposing sides of the same pole to said shim, and conductor means comprising a cable connected respectively with both piezoelectric elements and said shim extending through said tube to conduct the electrical signal generated by the transducer to means for receiving it.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×