| Patent Number |
Title Of Patent |
Date Issued |
| 7967762 |
Ultra miniature pressure sensor |
June 28, 2011 |
| A method of measuring blood pressure and velocity proximally and distally of a stenosis in a vessel carrying blood includes the steps of providing a guide wire having both a pressure sensor and a velocity sensor disposed on a distal region of the guide wire, introducing the guide wire in |
| 7630747 |
Apparatus for ascertaining blood characteristics and probe for use therewith |
December 8, 2009 |
| An apparatus for use with a patient having a vessel carrying blood to ascertain characteristics of the blood. The apparatus includes a display module and a probe having a distal extremity adapted to be inserted into the vessel of the patient and having a proximal extremity coupled to the |
| 7097620 |
Guidewire with pressure and temperature sensing capabilities |
August 29, 2006 |
| A guide wire having pressure sensing capabilities for measuring the pressure of liquid in a vessel comprising a flexible elongate member and having proximal and distal extremities and having an outside diameter of 0.018'' or less. The distal extremity of said flexible elongate member is |
| 6976965 |
Ultra miniature pressure sensor |
December 20, 2005 |
| A guide wire having pressure sensing capabilities for measuring the pressure of liquid in a vessel comprising a flexible elongate member and having proximal and distal extremities and having an outside diameter of 0.018" or less. The distal extremity of said flexible elongate member is |
| 6913581 |
High output therapeutic ultrasound transducer |
July 5, 2005 |
| A therapeutic ultrasound delivery system, comprises: a catheter body, a plurality of axially spaced-apart hollow cylindrical vibrational transducers disposed along a length of the catheter body, a first spring connector wrapped around the outer surfaces of the vibrational transducers |
| 6767327 |
Method of measuring blood pressure and velocity proximally and distally of a stenosis |
July 27, 2004 |
| A method of measuring blood pressure and velocity proximally and distally of a stenosis in a vessel carrying blood includes the steps of providing a guide wire having both a pressure sensor and a velocity sensor disposed on a distal region of the guide wire, introducing the guide wire in |
| 6755853 |
Methods and kits for the inhibition of hyperplasia in vascular fistulas and grafts |
June 29, 2004 |
| A method for inhibiting hyperplasia at an anastomotic junction of a vascular fistula or vascular graft comprises exposing the anastomotic junction to vibrational energy at a mechanical index and for a time sufficient to inhibit hyperplasia. Kits are described comprising the catheter |
| 6524271 |
Therapeutic ultrasound catheter for delivering a uniform energy dose |
February 25, 2003 |
| A method of treating a target region in a body lumen, said method comprising: directing a uniform dose of ultrasonic energy from an interior of the lumen radially outward over a treatment length of the lumen, wherein the dosage of ultrasonic energy received at any one point along the |
| 6432068 |
High output therapeutic ultrasound transducer |
August 13, 2002 |
| A therapeutic ultrasound energy delivery system includes a probe having a vibrational transducer. A restraint is disposed about the transducer in order to exert a compressive pre-stress on the transducer. The restraint inhibits tensile failure of the vibrational transducer at high acoust |
| 6387116 |
Methods and kits for the inhibition of hyperplasia in vascular fistulas and grafts |
May 14, 2002 |
| A method for inhibiting hyperplasia at an anastomotic junction of a vascular fistula or vascular graft comprises exposing the anastomotic junction to vibrational energy at a mechanical index and for a time sufficient to inhibit hyperplasia. Kits are described comprising the catheter |
| 6296619 |
Therapeutic ultrasonic catheter for delivering a uniform energy dose |
October 2, 2001 |
| A method of treating a target region in a body lumen, said method comprising: directing a uniform dose of ultrasonic energy from an interior of the lumen radially outward over a treatment length of the lumen, wherein the dosage of ultrasonic energy received at any one point along the |
| 6106476 |
Ultra miniature pressure sensor and guide wire using the same and method |
August 22, 2000 |
| A guide wire having pressure sensing capabilities for measuring the pressure of liquid in a vessel comprising a flexible elongate member and having proximal and distal extremities and having an outside diameter of 0.018" or less. The distal extremity of said flexible elongate member is |
| 6025670 |
Miniature, high efficiency dual frequency ultrasonic transducer with selectable beamwidth |
February 15, 2000 |
| Ultrasonic transducer with a selectable beamwidth comprising a body of piezoelectric material in the form of an annulus having an outer diameter D and a thickness T. The body has proximal and distal generally planar parallel surfaces and a centrally disposed hole extending therethrough. |
| 5908385 |
Apparatus for mapping electrical activity in a body and treating tissue |
June 1, 1999 |
| A guide wire assembly comprises a tubular body having a distal end and an proximal end. At least a portion of the body comprises a single continuous helical spring to which one or more tubular electrodes are secured. The electrodes are insulated from the spring by means of an insulator. |
| 5740596 |
Method of making a miniature, high efficiency dual frequency ultrasonic transducer |
April 21, 1998 |
| Ultrasonic transducer with a selectable beamwidth comprising a body of piezoelectric material in the form of an annulus having an outer diameter D and a thickness T. The body has proximal and distal generally planar parallel surfaces and a centrally disposed hole extending therethrough. |
| 5715827 |
Ultra miniature pressure sensor and guide wire using the same and method |
February 10, 1998 |
| A guidewire having pressure sensing capabilities for measuring the pressure of liquid in a vessel comprising a flexible elongate member and having proximal and distal extremities and having an outside diameter of 0.018" or less. The distal extremity of said flexible elongate member is ad |
| 5581144 |
Miniature, high efficiency dual frequency ultrasonic transducer with selectable beamwidth and ap |
December 3, 1996 |
| Ultrasonic transducer with a selectable beamwidth comprising a body of piezoelectric material in the form of an annulus having an outer diameter D and a thickness T. The body has proximal and distal generally planar parallel surfaces and a centrally disposed hole extending therethrough. |
| 5517989 |
Guidewire assembly |
May 21, 1996 |
| A method of diagnosing and treating the human or animal body comprises feeding a flexible guide wire, dimensioned to be inserted into human coronary arteries, along a blood vessel in the human or animal body and epicardially mapping the electrocardiographic signals by means of electr |
| 5271404 |
Method and apparatus for processing signal data to form an envelope on line |
December 21, 1993 |
| An apparatus for generating a velocity spectrogram is described. The apparatus includes a transducer which is positionable within a vessel. The transducer receives a time-varying Doppler signal which contains information related to fluid velocity values within the vessel. A Fourier t |
| 5174295 |
Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of bl |
December 29, 1992 |
| System for measuring a characteristic of flow of liquid in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially inform beam which encompasses the vessel. The transducer receives ultr |
| 5163445 |
Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of bl |
November 17, 1992 |
| System for measuring a characteristic of flow of liquid in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially uniform beam which encompasses the vessel. The transducer receives ult |
| 5125137 |
Method for providing a miniature ultrasound high efficiency transducer assembly |
June 30, 1992 |
| Method for providing micro-miniature high efficiency ultrasonic transducer assembly having a diameter of 0.018 inches or less. A transducer is formed from a selected transducer material to provide a cylindrical transducer having front and back sides with a thickness which is one-half of |
| 5105818 |
Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of bl |
April 21, 1992 |
| System for measuring a characteristic of flow of liquid in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially uniform beam which encompasses the vessel. The transducer receives ult |
| 5078148 |
Apparatus and method for continuously measuring volumetric blood flow using multiple transducers |
January 7, 1992 |
| Apparatus for measuring volumetric flow of a liquid in a vessel having a wall and having an axis extending longitudinally of the vessel parallel to the vessel wall. A flexible catheter is adapted to be disposed in the vessel. First and second ultrasonic transducers are carried by the |
| 5059851 |
Miniature ultrasound high efficiency transducer assembly, guidewire using the same and method |
October 22, 1991 |
| Guidewire comprising a flexible elongate member having a distal extremity with an ultrasonic transducer secured to the distal extremity of the flexible elongate member. The transducer has a diameter ranging from 0.007 inches to 0.018 inches and has a thickness and a diameter to provide a |
| 4974211 |
Digital ultrasound system with dynamic focus |
November 27, 1990 |
| An ultrasound system for investigating a subject comprises a probe, a signal processing module, and an interconnecting cable. The probe includes an annular phased array transducer defining multiple signal processing channels. The signal processing module includes a controller, a tran |
| 4967753 |
Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of bl |
November 6, 1990 |
| System for measuring a characteristic of flow of liquid in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially uniform beam which encompasses the vessel. The transducer receives ult |
| 4947852 |
Apparatus and method for continuously measuring volumetric blood flow using multiple transducer |
August 14, 1990 |
| Apparatus for measuring volumetric flow of a liquid in a vessel having a wall and having an axis extending longitudinally of the vessel parallel to the vessel wall. A flexible catheter is adapted to be disposed in the vessel. First and second ultrasonic transducers are carried by the |
| 4869263 |
Device and method for measuring volumetric blood flow in a vessel |
September 26, 1989 |
| Device for measuring volumetric blood flow in a vessel comprising a catheter having proximal and distal extremities. A balloon is carried by the distal extremity of the catheter. A balloon inflation lumen is carried by the catheter and is in communication with the balloon. A toroidal |
