Matches 51 - 100 out of 133 < 1 2 3 >
Match Document Document Title
6450965 Imaging catheter assembly with distal end inductive coupler and embedded transmission line  
A catheter assembly includes an elongate catheter body having a proximal end and a distal end with a drive cable disposed therein, the drive cable having a proximal end and a distal end, and...
6440077 Apparatus and method for the intravascular ultrasound-guided placement of a vena cava filter  
An apparatus and method for the intravascular placement of a vena cava filter includes an outer sheath, an intravascular ultrasound catheter with an ultrasonic imaging element, a guide wire, and...
6434411 Method for measuring a conductive volume and device for implementing this method  
This invention relates to a process for measuring at least one dimension of a conducting volume, in which a measurement sensor ( 10 ) is placed in a cavity existing inside an homogeneous conducting...
6416492 Radiation delivery system utilizing intravascular ultrasound  
A radiation delivery system including a catheter shaft having a distal head. A fixed or removable radiation source is disposed adjacent the distal head. The distal head includes a radiation shield...
6352683 Apparatus and method for the local delivery of drugs  
A local and site-specific drug delivery apparatus for delivering a drug to a specific site is characterized by the combination of a carrier material which reflects or absorbs or emits...
6309379 Sheath for selective delivery of multiple intravascular devices and methods of use thereof  
An intravascular device, such as a sheath, and methods for use thereof for selective alternate positioning of other intravascular devices having predetermined sizes in a distal vascular region of...
6283921 Ultrasonic visualization and catheters therefor  
A catheter is provided that has both an ultrasonic transducer array (2) and a inflatable balloon (12) mounted at or near its distal end. A sheath catheter having a transducer array and associated...
6273858 Systems and methods for providing radiation therapy and catheter guides  
A system and method for the prevention of restenosis uses a source of radiation to treat the blood vessel. An intra-vascular ultrasound system acquires precise two-dimensional images of a treatment...
6264608 Acoustic therapy apparatus comprising a source of therapeutic acoustic waves and an ultrasound locating means  
An acoustic therapy apparatus has a source of therapeutic acoustic waves and an ultrasound locating means with an ultrasound transducer, wherein the source and the ultrasound transducer are...
6217520 Diagnostic medical ultrasound system and method for object of interest extraction  
The preferred embodiments include a diagnostic medical ultrasound system and method for object of interest extraction. Unlike some extraction techniques, the preferred embodiments do not require...
6200268 Vascular plaque characterization  
A method and system for characterizing plaque components within a vascular object is provided. The vascular object is scanned with an ultrasonic device and backscatter signal data is collected....
6171247 Underfluid catheter system and method having a rotatable multiplane transducer  
A self-contained ultrasound catheter device capable of delivering diagnostic and therapeutic tools in a field of ultrasound includes a rotatable multiplane sector phased array imaging ultrasound...
6168564 Steerable transducer array for intracardial ultrasonic imaging  
In an ultrasonic imaging system, a transducer array structure, preferably a linear one-dimensional array on a catheter, is provided wherein the direction of a beam is controlled by a preselected,...
6152878 Intravascular ultrasound enhanced image and signal processing  
A device and method for intravascular ultrasound imaging. A catheter including ultrasonic apparatus is introduced into and may be moved through a bodily lumen. The apparatus transmits ultrasonic...
6148095 Apparatus and method for determining three-dimensional representations of tortuous vessels  
Three-dimensional reconstructions of tortuous vessels such as coronary arteries can be obtained by data fusion between biplane angiography and IVUS frames of a pullback sequence. The 3D course of...
6123673 Method of making an ultrasound transducer assembly  
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...
6120515 Composite atherectomy cutter  
An athetectomy catheter is disclosed having a composite cutter which is capable of cutting material, including hardened plaque, from a biological conduit. The composite cutter has a cutter and a...
6095976 Method for enhancing an image derived from reflected ultrasound signals produced by an ultrasound transmitter and detector inserted in a bodily lumen  
A device and method for intravascular ultrasound imaging. A catheter including ultrasonic apparatus is introduced into and may be moved through a bodily lumen. The apparatus transmits ultrasonic...
6050949 Catheher system having connectable distal and proximal portions  
A vascular catheter system comprises a catheter body having a proximal and distal portion and a single common lumen therebetween. The catheter body includes a first connector secured to the distal...
6036647 PZT off-aperture bonding technique  
A transducer assembly having an improved external connection configuration, a method for manufacturing such a transducer assembly, and a catheter system incorporating the transducer assembly. The...
6019727 Center conductor and PZT bonding technique  
A transducer assembly having an improved external connection configuration, a method for manufacturing such a transducer assembly, and a catheter system incorporating the transducer assembly. The...
5971955 Double balloon catheter with ultrasonic probe  
The invention relates to a catheter comprising a tube-like basic body with a distal end and a proximal end and at least two balloon members received at the distal end at a certain distance from...
5938615 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...
5916170 Method and apparatus for curvature detection in vessels from phase shifts of a plurality of input electrical signals  
An ultrasound imaging apparatus for measuring the curvature of a vessel consisting of a distal transducer mounted on a transducer supporting device. A resilient deformable material is attached to...
5860974 Heart ablation catheter with expandable electrode and method of coupling energy to an electrode on a catheter shaft  
An expandable ablation electrode is provided on a catheter constructed to access the heart. When the electrode is introduced to the heart, it is small and suitably flexible to maneuver through the...
5855563 Method and apparatus for sequentially performing multiple intraluminal procedures  
Sleeve catheters having an interactive device near their distal ends are provided for introduction while disposed over conventional interventional and imaging catheters. Exemplary interactive...
5830145 Enhanced accuracy of three-dimensional intraluminal ultrasound (ILUS) image reconstruction  
A method for imaging an organ or internal structure within a body to obtain three-dimensional reconstruction of the organ or internal structure. The method includes steps of providing an...
5823992 Methods for using catheters having compliant lumens  
In one aspect, the invention provides a vascular catheter sheath for use with a therapeutic catheter having a radially expandable member. The catheter sheath includes a catheter body having a...
5799655 Method and apparatus for ultrasound imaging and atherectomy  
A catheter for ultrasonic imaging has a transducer fixed to a cutter. The transducer is moved longitudinally within an artery while in a fixed radial position. Ultrasonic reflections are received...
5771895 Catheter for obtaining three-dimensional reconstruction of a vascular lumen and wall  
A catheter system and method of use thereof to obtain accurate three-dimensional reconstruction of a body vessel. The method employs X-ray angiography (ANG) in combination with intravascular...
5713363 Ultrasound catheter and method for imaging and hemodynamic monitoring  
A catheter apparatus for monitoring cardiovascular function is provided. The catheter apparatus contains an elongated body having proximal and distal ends; a phased-array ultrasonic transducer; and...
5660180 Intravascular ultrasound imaging guidewire  
An ultrasonic imaging guidewire apparatus for ultrasonic diagnostic imaging of blood vessels, comprising: an elongated, flexible, catheter guide (10) having a plurality of electrical conductors, a...
5634466 Ultrasonic transesophageal probe with detachable transducer tip  
A multiplane TEE probe is provided for the imaging and diagnosis of multiple scan planes from within a cavity of the body. The probe includes an articulation section formed of a plurality of...
5517989 Guidewire assembly  
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...
5509418 Ultrasound diagnostic probe having acoustically driven turbin  
A catheter apparatus for obtaining an image of internal surface characteristics of a vascular vessel is provided. The catheter apparatus comprises an tubular element adapted for insertion into the...
5507295 Medical devices  
The present invention relates to a device to allow access of a medical sensor probe to a selected location within a patient's body. A disposable elongated tubular sheath (2) is releasably attached...
5503155 Drive cable having internal lead wires  
A flexible drive cable comprises a flexible cable body, a pair of electrically insulated wires disposed through an axial lumen of the cable body, and a resilient support tube disposed over the wire...
5485845 Rotary encoder for intravascular ultrasound catheter  
An ultrasound system and method for intravascular ultrasonic imaging includes an array of beacons that are fixed to direct ultrasonic energy toward an imaging transducer, with individual beacons...
5474075 Brush-tipped catheter for ultrasound imaging  
Miniature catheter-based ultrasound transducers are used to image peritracheal or bronchial structures including masses, lymph nodes, and vessels. Most preferably, a 6.2 French catheter containing...
5458585 Tracking tip for a work element in a catheter system  
The claimed invention provides an improved tracking tip for use with a work element in a catheter system having a flexible tubular catheter body. Use of a tracking tip according to the present...
5454373 Medical acoustic imaging  
An ultrasound imaging device has a stationary, elongated flexible tubular body, a rotatable drive shaft extending through the body, and a nose member located distally of the tubular body. The nose...
5443457 Tracking tip for a short lumen rapid exchange catheter  
A catheter system includes a catheter sheath and a flexible working shaft within a working lumen of the sheath. The sheath includes a monorail-type guidewire lumen at its distal end, and a...
5435314 Intravascular imaging catheter tip having a dynamic radius  
A catheter tip imaging probe varies the effective radius of resolution of an acoustic beam by translating the focal length. Varying the effective radius improves the resolution at any point of...
5406951 Intra-luminal ultrasonic instrument  
The intra-luminal ultrasonic instrument includes a catheter comprising a body, a flexible rotatable drive shaft within the body, an opalescent tip coupled to the flexible rotatable drive shaft...
5400785 Acoustic window and septum for imaging catheters  
A catheter, an acoustic septum and method for diagnosing body interiors utilizing the transmission and receiving of ultrasonic waves generated therewith. The catheter includes an elongated catheter...
5379772 Flexible elongate device having forward looking ultrasonic imaging  
A flexible elongate device comprising a flexible elongate member having proximal and distal extremities, means mounted on the distal extremity and having a cavity therein, a transducer disposed in...
5377685 Ultrasound catheter with mechanically steerable beam  
The catheter has a mechanically steerable beam which can be directed at a variable angle with respect to an axis of rotation of the catheter. The ultrasonic transducer can be mounted in a pivoting...
5375602 Ultrasonic instrument with a micro motor  
The disposable intra-luminal ultrasonic instrument comprises: a catheter having an elongate axis and a hollow distal end portion; an acoustical mirror face; structure for mounting the acoustical...
5373845 Apparatus and method for forward looking volume imaging  
A scanning system that is forward looking that uses ultrasound for intraluminal imaging. A transducer that emits ultrasonic signals is nutatably mounted on the tip of a probe. The front mounted...
5373849 Forward viewing imaging catheter  
An intraluminal imaging catheter system for viewing segments of vessels downstream of the catheter itself is provided. The catheter system incorporates an ultrasonic transducer pivotally mounted...
Matches 51 - 100 out of 133 < 1 2 3 >