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US6039693: Volumetric image ultrasound transducer underfluid catheter system

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Filing Information

Inventor(s) James Bernard Seward · Abdul Jamil Tajik ·
Assignee(s) Mayo Foundation for Medical Education and Research ·
Attorney/Agent(s) Merchant & Gould P.C. ·
Primary Examiner Jeffrey R. Jastrzab ·
Assistant Examiner Ali M. Imam ·
Application Number US9087419
Filing date 05/29/1998
Issue date 03/21/2000
Predicted expiration date 11/08/2011
U.S. Classifications 600/459  · 600/466  ·
International Classifications A61B 812  ·
Kind CodeA
International Classifications 600437;443;444;447;459;466;467 ·
Related U.S. Application DataCROSS-REFERENCE TO RELATED APPLICATIONS
This application is a Continuation of application Ser. No. 09/003,248, filed Jan. 6, 1998 (now pending), which is a Continuation of application Ser. No. 08/678,380, filed June 28, 1996 (now issued as U.S. Pat. No. 5,704,361), which is a Continuation-in-Part of application Ser. No. 08/305,138, filed Sep. 13, 1994 (now abandoned), which is a Continuation of application Ser. No. 07/972,626, filed Nov. 6, 1992 (now issued as U.S. Pat. No. 5,345,940), which is a Continuation-in-Part of application Ser. No. 07/790,580, filed Nov. 8, 1991 (now issued as U.S. Pat. No. 5,325,860), which applications are incorporated herein by reference.
38 Claims, No Drawings


Abstract

An underfluid ultrasound imaging catheter system includes a catheter having a distal end inserted into an underfluid structure, an ultrasonic transducer array mounted proximate the distal end of the catheter wherein the array has a row of individual transducer crystals, a lens mounted on the array for defocusing ultrasound beams in a direction perpendicular to an axis of the array so as to provide a volumetric field of view within which the underfluid features are imaged. Alternatively, the single row of transducer crystals is replaced by multiple rows of transducer crystals so as to provide a volumetric field of view. This imaging catheter system helps an operator see 3-dimensional images of an underfluid environment, such as the 3-dimensional images of fluid-filled cavities of heart, blood vessel, urinary bladder, etc. Features in such wide volumetric field of view can be imaged, measured, or intervened by an underfluid therapeutic device with an aid of the real-time image.

Independent Claims | See all claims (38)

  1. 1. A catheter apparatus, comprising:an elongated body having a longitudinal axis;an ultrasonic transducer array longitudinally mounted on the body, the array being operated for transmitting ultrasonic signals for imaging; andan electrical conductor disposed in the body for electrically connecting the array to a control circuitry.
  2. 19. A catheter apparatus, comprising:an elongated body having a longitudinal axis;an ultrasonic transducer array longitudinally mounted on the body, the array being operated for transmitting ultrasonic signals for forming a multi-dimensional image; andan electrical conductor disposed in the body for electrically connecting the array to control circuitry.
  3. 20. A catheter apparatus, comprising:an elongated body having a longitudinal axis;an ultrasonic transducer array having at least one row of ultrasonic transducer elements mounted on the body, each of the ultrasonic transducer elements of the array being concurrently operable as a part of the array for transmitting ultrasonic signals for imaging; andan electrical conductor disposed in the body for electrically connecting the array to a control circuitry.

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