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| Number | Title | Issue Date |
| 5402793 | Ultrasonic transesophageal probe for the imaging and diagnosis of multiple scan planes A multiplane TEE probe is provided in which rotation of the ultrasonic transducer is motor controlled. The motor is controlled to rotate the transducer either clockwise or counterclockwise, and at either a high rotational speed or a low rotational speed. ... | 04/04/1995 |
| 5400789 | Sheath for guide wire probe A catheter for delivering both a probe and a balloon to a lumen in a subject. The probe is most preferably an ultrasonic imaging probe and the balloon a dilation balloon. The catheter comprises, at a proximal end, a triple lumen section that comprises a g... | 03/28/1995 |
| 5379773 | Echographic suction cannula and electronics therefor The Echographic Suction Cannula and Electronics Therefor provides a display of adipose tissue thickness for the Doctor to observe as he moves the cannula within the patient. The cannula includes a piezoelectric transducer which is pulsed by the electronic... | 01/10/1995 |
| 5377682 | Ultrasonic probe for transmission and reception of ultrasonic wave and ultrasonic diagnostic apparatus including ultrasonic probe An ultrasonic probe to be used for an ultrasonic diagnostic apparatus for obtaining an ultrasonic image. The ultrasonic probe comprises a catheter having a hollow tubing structure, a joint having a tubing structure and arranged to be at its one end portio... | 01/03/1995 |
| 5368035 | Ultrasound imaging guidewire A medical guidewire has a substantially uniform small diameter throughout its length and incorporates means for lateral acoustic scanning, and the guidewire comprises a proximal connector, an extended main guidewire body portion, an axially elongated tran... | 11/29/1994 |
| 5354220 | Electrical coupler for coupling an ultrasonic transducer to a catheter An electrical connector (70) for use in connecting an ultrasonic transducer (16) to a coaxial cable (88) running through a catheter (10). The transducer is normally disposed at a distal end of the catheter and is removably attached to and supported by the... | 10/11/1994 |
| 5345938 | Diagnostic apparatus for circulatory systems A diagnostic apparatus for diagnosing the circulatory system of a patient, including an X-ray diagnostic system and an ultrasonic diagnostic system. The ultrasonic diagnostic system has an ultrasonic catheter for insertion into the circulatory systems of ... | 09/13/1994 |
| 5333614 | Measurement of absolute vascular flow A vascular flow measurement catheter device for measuring total volumetric flow through a vessel includes a flow-measurement catheter having a full flow lumen of known cross sectional geometry provided with a relatively short distal measurement segment wi... | 08/02/1994 |
| 5320106 | Intracavitary diagnosing apparatus employing ultrasound An intracavitary diagnosing apparatus employs an ultrasonic probe whose focused range can be moved. In the ultrasonic probe are disposed an ultrasonic transducer and an ultrasonic mirror for reflecting ultrasound. The relative distance between the ultraso... | 06/14/1994 |
| 5318017 | Guide for transesophageal echo probe A guide for an esophageal echo probe includes a bite block with a collar about one end thereof to seat about the patient's mouth and a sleeve of low friction, flexible, form-retaining material having a generally arcuate configuration and dimensioned and c... | 06/07/1994 |
| 5305755 | Ultrasonic probe, having transducer array capable of turning around its aperture axis and having a convex lens comprising a viscous resin An ultrasonic probe has a case of a substantially cylinder shape having a first axis along longitudinal direction thereof. The case has a convex wall in the vicinity of a closed end of the case. The convex wall is transparent to an ultrasonic signal radia... | 04/26/1994 |
| 5246007 | Vascular catheter for measuring flow characteristics and method Vascular catheter for measuring flow characteristics of a liquid in a vessel having a wall and an axis extending longitudinally of the vessel parallel to the vessel wall comprising a flexible elongate tubular member adapted to be introduced into the vesse... | 09/21/1993 |
| 5209235 | Ultrasonic imaging catheter assembly and method for identification of the same An improved ultrasonic imaging catheter assembly (4) includes an elongate tubular assembly (8) having an imaging assembly (12) at one end (14) and one or more connectors (16) at the other end (17). The catheter assembly includes a digital identification c... | 05/11/1993 |
| 5168878 | Mechanical scan type ultasonic probe A mechanical scan type ultrasonic probe is disclosed, in which a rotational force transmitting shaft for transmitting the rotational force of a motor to an ultrasonic transducer, and a guide pipe for guiding the rotational force transmitting shaft are imp... | 12/08/1992 |
| 5166073 | Miniaturized sensor for ionizing radiation The invention is an optical sensor useful for the detection of ionizing radiation emitted from an analyte in a fluid. The sensor is composed of a permeable scintillator having a high surface area to scintillator volume ratio and an optical waveguide locat... | 11/24/1992 |
| 5121750 | Apparatus for locating a catheter adjacent to a pacemaker node of the heart A method and apparatus for locating a catheter adjacent to a pacemaker node of the heart. The placement of a catheter tip just before SA heart pacemaker node is a common and desired procedure in medicine, with the most serious complication being its accid... | 06/16/1992 |
| 5109859 | Ultrasound guided laser angioplasty A laser ablation catheter system guided by ultrasound sonography particularly useful for removing atherosclerotic plaque from coronary arteries of patients with heart disease and it method of use are detailed. Ultrasound is employed at the tip of the cath... | 05/05/1992 |
| 5081993 | Methods and apparatus for the examination and treatment of internal organs The internal examination of a human organ (3) is made by means of an ultrasonic probe (2) inserted into the organ (3), analogue echo signals from the probe being converted to digital signals (8) which are then stored in a digital computer (10) where they ... | 01/21/1992 |
| 5070882 | Probe tip ultrasonic transducers and method of manufacture An improved ultrasonic transducer for a catheter tip has a thin strip of piezoelectric polymer film formed into a spiral ring and adhesively mounted on the support structure near the catheter tip. Electrical connection between the back face of the film an... | 12/10/1991 |
| 5046503 | Angioplasty autoperfusion catheter flow measurement method and apparatus An angioplasty autoperfusion catheter flow measurement apparatus includes a balloon catheter having an autoperfusion lumen incorporated therein which is acoustically in communication with a flow velocity measuring system. The flow measuring system may inc... | 09/10/1991 |
| 5002059 | Tip filled ultrasound catheter The present invention relates to an ultrasonic imaging catheter having an open proximal end and a closed distal end. The closed distal end contains a septum and a situs for targeting the septum. A fluid filled syringe may be insertable though the situs an... | 03/26/1991 |
| 5002058 | Ultrasonic transducer A miniature transducer designed for use in a medical imaging system catheter probe is disclosed. The transducer has an electric cavity and coaxial construction for preventing electric fields from being emitted or received by the transducers. The construct... | 03/26/1991 |
| 5000185 | Method for intravascular two-dimensional ultrasonography and recanalization Ultrasonic apparatus, system and method for high resolution intravascular imaging to assist indovascular lesions and to monitor the results of interventional therapy. An ultrasonic transducer is carried by the distal end of a catheter adapted for insertio... | 03/19/1991 |
| 4920967 | Doppler tip wire guide An invasive, fluid velocity measuring wire guide particularly adapted and of a size (less than 0.030 inch) for subselective placement in the coronary arterial tree, which includes a Doppler mechanism for determining the blood flow velocity in the region o... | 05/01/1990 |
| 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 |
| 4911172 | Probe tip ultrasonic transducers and method of manufacture An improved ultrasonic transducer for a catheter tip has a thin strip of piezoelectric polymer film formed into a spiral ring and adhesively mounted on the support structure near the catheter tip. Electrical connection between the back face of the film an... | 03/27/1990 |
| 4869263 | Device and method for measuring volumetric blood flow in a vessel 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... | 09/26/1989 |
| 4771788 | Doppler tip wire guide An invasive, fluid velocity measuring wire guide particularly adapted and of a size (less than 0.030 inch) for subselective placement in the coronary arterial tree, which includes a Doppler mechanism for determining the blood flow velocity in the region o... | 09/20/1988 |
| 4733669 | Blood flow measurement catheter A catheter having a mechanism for positioning a doppler shift transducer carried by the catheter against a side wall of a blood vessel. A portion of the catheter near the distal end is adjustable for movement between a first position in line with the axis... | 03/29/1988 |
| 4237729 | Doppler flow meter A catheter probe flow meter and method of determining the volume flow of a fluid through a conduit, at least one of the fluid and the conduit having energy-scattering interfaces. The method in one embodiment includes trasmitting at least two and receiving... | 12/09/1980 |
