1
Elvin Leonard Nix, George Woodrow Keilman, Robert Julian Dickinson: Ultrasonic transducer array and method of manufacturing the same. Intravascular Research, Richard M Goldberg, May 29, 2001: US06238347 (157 worldwide citation)

In a method of manufacturing an ultrasonic transducer array a plurality of discrete transducer elements are formed on an initially flat flexible substrate together with electrically conductive tracks, through which the transducer elements will be energised in use, the flexible substrate with the dis ...


2
Christopher J Barlow, Patrick J Ryan, Robert J Dickinson, Elvin L Nix: Ultrasonic transducer arrangement and catheter. Intravascular Research, Forrest E Gunnison, Skjerven Morrill MacPherson Franklin & Friel, October 10, 1995: US05456259 (83 worldwide citation)

A catheter (1a, 1b) is provided with an ultrasonic transducer array at its tip (3), the transducer array having been manufactured from an annulus of piezoelectric material (10) by making longitudinal mutually parallel slots (18) in the material.


3
Richard I Kitney, Keith Straughan, Martin T Rothman: Methods and apparatus for the examination and treatment of internal organs. Intravascular Research, Tarolli Sundheim & Covell, November 2, 1993: US05257629 (65 worldwide citation)

The internal examination of a human organ is made by means of an ultrasonic probe inserted into the organ, and in one embodiment analogue echo signals from the probe are directly converted into digital signals before any signal processing is carried out. These signals are then stored in a digital co ...


4
Robert Julian Dickinson, Timothy Spencer, Anthony Stenning: Medical ultrasonic imaging. Intravascular Research, Richard M Goldberg, August 14, 2001: US06275724 (60 worldwide citation)

A method of measuring the position of the tip of a catheter includes the steps of continuously monitoring the distance the catheter has travelled past a reference point, monitoring the orientation of the tip, and reconstructing the trajectory of the catheter tip.


5

6
Robert J Dickinson, Richard I Kitney: Ultrasound imaging and catheters for use therein. Intravascular Research, Richard M Goldberg, November 14, 1995: US05465726 (50 worldwide citation)

A catheter having an ultrasonic transducer array at its distal end is constructed to overcome the "ringdown" problem by having a conically shaped reflecting interface space from an ultrasonic transducer array in such a way that the "dead space" is contained wholly within the catheter.


7
Elvin Leonard Nix, George Woodrow Keilman, Robert Julian Dickinson: Ultrasonic transducer array and method of manufacturing the same. Intravascular Research, Richard M Goldberg, August 29, 2000: US06110314 (42 worldwide citation)

In a method of manufacturing an ultrasonic transducer array a plurality of discrete transducer elements are formed on an initially flat flexible substrate together with electrically conductive tracks, through which the transducer elements will be energized in use, the flexible substrate with the dis ...


8
Robin Hamilton, Patrick J Ryan, Derek Kelly, Robert J Dickinson: Ultrasonic visualization method and apparatus. Intravascular Research, Richard M Goldberg, January 7, 1997: US05590659 (29 worldwide citation)

An ultrasound system comprising a transducer array and means for energizing each element, or batches of elements, of the array in turn to generate an ultra sound pulse, means for processing an echo pulse received by each transducer, and control means for controlling the order in which a transducer o ...


9
Robert Julian Dickinson, Martin Terry Rothman: Guide wire for a catheter with position indicating means. Intravascular Research, Richard M Goldberg, September 23, 1997: US05669878 (24 worldwide citation)

A catheter is provided either with an x-ray-opaque marker or with a device for generating a vibratory signal for transmission along a guide wire within the catheter in order to indicate the position of the catheter.


10
Robert Julian Dickinson, Martin Terry Rothman: Guide wire for a catheter with position indicating means. Intravascular Research, Richard M Goldberg, April 18, 2000: US06050958 (17 worldwide citation)

A catheter is provided either with an x-ray-opaque marker or with a device for generating a vibratory signal for transmission along a guide wire within the catheter in order to indicate the position of the catheter.