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| Number | Title | Issue Date |
| 6309339 | Intravascular radiation delivery device A device and method for precisely delivering dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. In one embodiment, the device includes a catheter which inserts into a vessel lumen of the body. The catheter incl... | 10/30/2001 |
| 6106476 | Ultra miniature pressure sensor and guide wire using the same and method 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 s... | 08/22/2000 |
| 6080109 | Modular imaging/treatment catheter assembly Catheter assembly in which an imaging transducer is positioned proximally of a treatment device at the distal end of a catheter. Unrestricted flow between a fluid lumen in the catheter and the treatment device is provided by an annular passageway formed b... | 06/27/2000 |
| 6041662 | Process and apparatus for the determination of true average peak velocity A procedure for the determination of the true average peak velocity of particulate laden liquids in a tube, by the use of a Doppler ultrasonic transducer inserted in said tube. The average peak velocity (APV) and the null and first moment (M0 or M1) of th... | 03/28/2000 |
| 6036650 | Ultrasonic imaging system and method with ringdown reduction Ultrasonic imaging method and apparatus in which a reference waveform which is substantially free of echoes is modified to be equal to a weighted sum of the reference waveform and filtered signals from the transducing elements which transmit the ultrasoni... | 03/14/2000 |
| 6024690 | Radiation source with delivery wire A radiation source for delivering a dose of radiation to a treatment site of a vessel is provided herein. The radiation source includes a delivery wire and a radioactive segment. The radioactive segment includes a substantially coiled or entwined radioact... | 02/15/2000 |
| 5857974 | High resolution intravascular ultrasound transducer assembly having a flexible substrate An ultrasound transducer assembly of the present invention includes a flexible circuit to which an ultrasound transducer array and integrated circuitry are attached during fabrication of the ultrasound transducer assembly. Integrated circuitry and transdu... | 01/12/1999 |
| 5779644 | Ultrasound catheter probe An ultrasound catheter is disclosed for providing substantially real-time images of small cavities. The ultrasound catheter is characterized by separate and distinct materials for backing the transducers and for carrying the electronics components. The se... | 07/14/1998 |
| 5603327 | Ultrasound catheter probe An ultrasound catheter is disclosed for providing substantially real-time images of small cavities. The ultrasound catheter is characterized by separate and distinct materials for backing the transducers and for carrying the electronics components. The se... | 02/18/1997 |
| 5453575 | Apparatus and method for detecting blood flow in intravascular ultrasonic imaging An apparatus and method are described for imaging blood flow from within a vasculature. An ultrasound catheter probe carrying an ultrasound transducer array is inserted within a blood vessel. The transducer array emits ultrasound excitation signals and re... | 09/26/1995 |
| 5368037 | Ultrasound catheter An ultrasound catheter is disclosed for providing substantially real-time images of small cavities. The ultrasound catheter is characterized by separate and distinct materials for backing the transducers and for carrying the electronics components. The se... | 11/29/1994 |
| 5183048 | Method and apparatus for removing artifacts from an ultrasonically generated image of a small cavity An apparatus and method for imaging a small cavity is disclosed wherein reference waveforms to be used in obtaining an improved image are generated in vivo instead of in vitro as is the conventional procedure. The reference waveforms are used to strip the... | 02/02/1993 |
| 5167233 | Dilating and imaging apparatus A dilating and imaging apparatus for attaching to and receiving pressurized fluid from a distal end of a catheter. The apparatus includes an inflatable balloon and an imaging device positioned behind an expandable portion of the balloon and upstream of th... | 12/01/1992 |
| 5135486 | Self-venting balloon dilitation catheter A self-venting balloon dilatation catheter and method for producing the same having a catheter tubing including a first lumen and a second lumen. An expandable balloon is positioned at a distal end of the catheter tubing. The first lumen is for a guide wi... | 08/04/1992 |
| 4917097 | Apparatus and method for imaging small cavities An in vivo imaging device is provided for producing real-time images of small, moving or stationary cavities and surrounding tissue structure. The imaging device includes a probe assembly of very small dimensions and preferably sufficiently small to fit w... | 04/17/1990 |
