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5358485 |
Cutter for atherectomy catheter
An atherectomy catheter is provided with an improved high speed rotating cutting head is disclosed in which the cutting head has a generally oval-shaped nose portion which includes a plurality of...
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5356418 |
Apparatus and method for rotational atherectomy
Apparatus and method for performing an atherectomy. The apparatus includes a rotational atherectomy device having a flexible, elongated drive shaft and an abrasive burr carried on the drive shaft....
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5352232 |
Method for using detachable tip valvulotome
An optical valvulotome having a replaceable blade head for in situ cutting of venous valves has a catheter that can be pushed through a vein. An anchor is attached to the catheter, and a cutting...
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5350390 |
Device for removal of intraluminal occlusions
A method and device for removal of intraluminal occlusions which includes a catheter having a cutting head in a distal end thereof. The cutting head undergoes a simultaneous longitudinal and...
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5348017 |
Drive shaft for an intravascular catheter system
The present invention provides an improved drive shaft for use in a catheter system having a rotating imaging or interventional work element. A drive shaft according to the present invention is...
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5345940 |
Transvascular ultrasound hemodynamic and interventional catheter and method
A self contained ultrasound device for the delivery of therapeutic and other types of tools to be visualized in an ultrasound-type environment within the blood before, during, and after an...
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5346473 |
Oxy-hydrogen propelled torpedo for introducing angioplasty guide wire
A torpedo device which is attached to the end of a guide wire to provide a local driving force to the end thereof. The torpedo includes a telescopic structure having a combustion chamber therein....
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5344395 |
Apparatus for intravascular cavitation or delivery of low frequency mechanical energy
An apparatus and method for recanalization of a blood vessel obstruction by application of low frequency mechanical energy to a vessel site or by creation of cavitation at the vessel site. The...
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5342394 |
Apparatus for blocking a vein branch and method of blocking a vein branch
An apparatus for blocking a vein branch is provided with an outer tube having a tubular passage opened at its distal and proximal ends and a bent distal end portion, an inner tube slidably inserted...
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5336234 |
Method and apparatus for dilatation of a stenotic vessel
An apparatus and method of operation are disclosed for using an expandable balloon catheter to perform a combination angioplasty and atherectomy procedure on a stenotic blood vessel. The expandable...
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5334211 |
Lumen tracking atherectomy system
An atherectomy system for opening an obstructed vessel comprising a helically shaped flexible guide-wire assembly insertable into the vessel having a cross section which narrows with increasing...
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5320634 |
Balloon catheter with seated cutting edges
A stenotic dilitation device includes a plurality of elongated atherotomes with cutters embedded in a substrate mounted on the outer surface of a flexible balloon along predetermined crease lines....
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5318576 |
Endovascular surgery systems
In order to remove a lesion constricting a vascular channel, such as arteries (1), a cutter (10) of oblong, and preferably ellipsoidal shape is provided by a plurality of flexible segments (15)....
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5314407 |
Clinically practical rotational angioplasty system
The present invention is a clinically practical, rotational angioplasty system which employs a unique rotary ablative device for mechanically abrading, and thereby removing, lesions from within a...
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5314438 |
Abrasive drive shaft device for rotational atherectomy
An abrasive drive shaft atherectomy device for removing stenotic tissue from an artery. The device includes a flexible, elongated drive shaft having a central lumen for receipt of a guide wire...
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5312427 |
Device and method for directional rotational atherectomy
Device and method for performing an atherectomy. The device utilizes a dual lumen catheter, with a guide wire being receivable in one of these lumens, and a flexible, elongated drive shaft carrying...
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5308354 |
Atherectomy and angioplasty method and apparatus
A device for treating obstructions in vessels or small openings in the body, comprising a rotatable ablator tip which is guided to the obstruction in a reduced diameter configuration, expanded and...
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5306244 |
Method of guidewire insertion
An atherectomy system for coring, ingesting and removing plaque from within a patient's vessel having a flexible guide wire defining a void for holding plaque during the atherectomy process and for...
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5303719 |
Surgical method and associated instrument assembly
A surgical sterilization method utilizes an elongate operating instrument assembly having a distal end portion which is inserted into a patient's Fallopian tube. The instrument assembly is operated...
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5304189 |
Venous valve cutter for in situ incision of venous valve leaflets
An improved valve cutter for in-situ incision of valve leaflets which safely, efficiently, and consistently renders venous valves incompetent while minimizing frictional forces on the endothelium...
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5304220 |
Method and apparatus for implanting a graft prosthesis in the body of a patient
A method of implanting a graft in a patient's body is disclosed. According to the method, a first end of the graft is anastomosed to the blood vessel at a first location which is covered by a...
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5295958 |
Method and apparatus for in vivo heart valve decalcification
A method and apparatus for in vivo removal of calcified deposits from an aortic valve. The apparatus includes an anchoring balloon catheter fixatable across the aortic valve, a tool for removing...
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5284486 |
Self-centering mechanical medical device
The present invention provides a safe, reliable means of breaking down a thrombus with rotating blades into particles which are fine enough to be left in the vascular system without any significant...
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5284478 |
Detachable tip optical valvulotome
An optical valvulotome having a replaceable blade head for in situ cutting of venous valves has a catheter that can be pushed through a vein. An anchor is attached to the catheter, and a cutting...
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5282484 |
Method for performing a partial atherectomy
A catheter atherotome and method for its use for performing partial atherectomy in an artery and blood flow through the artery. Several blades are mounted at a distal end of a catheter, in a...
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5282813 |
Surgical apparatus for removal of deposits from vessels
A medical apparatus for removing deposits from arterial and venous walls comprising a partially hollow body, essentially circular in cross-section, having an insertion end and a withdrawal end. At...
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5269793 |
Guide wire systems for intravascular catheters
A vascular catheter comprises a catheter body having a fixed guide wire secured to its distal end. The fixed guide wire includes an axial passage which is aligned with a wire lumen within the...
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5269751 |
Thrombectomy catheter for enlarging an artery
A thrombectomy catheter has a flexible twisted guide probe along which the catheter tube and tool can be threaded into an artery and which is driven by its end remote from an exploratory finger...
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5261877 |
Method of performing a thrombectomy procedure
According to the invention there is provided an intravascular catheter and thrombectomy procedure utilizing the catheter. The catheter comprises a flexible jacket with a distal working head having...
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5250059 |
Atherectomy catheter having flexible nose cone
An atherectomy catheter comprises a flexible tube having a proximal end and a distal end, and a cutter housing secured to the proximal end. A spring tip nose cone is secured to a distal end of the...
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5250060 |
Angioplasty apparatus
An angioplasty apparatus for removing abnormal deposits such as atheromatic plaque from the internal arterial walls is provided. The apparatus includes an elongated, flexible mechanism for...
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5242461 |
Variable diameter rotating recanalization catheter and surgical method
According to the invention there is provided an intravascular catheter comprising an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between and...
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5242460 |
Atherectomy catheter having axially-disposed cutting edge
Atherectomy catheters are described having a cylindrical cutting head rotatably mounted at the distal end of a catheter body. The head has an axially elongated aperture and an open interior. A...
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5234451 |
Apparatus for eliminating occlusions and stenoses in body cavities
Apparatus for eliminating or reducing occlusions or stenoses in veins and other body cavities has an elongated catheter with an ellipsoidal distal end having an internal anvil cooperating with a...
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5234450 |
Valvulotome catheter
A catheter-cutter for aorto-coronary bypass graft cutting of vein valves within a vein graft and for the in-situ bypass vein graft cutting of the valves within a vein includes at-least-one arcuate,...
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5224949 |
Camming device
An expandable endarterectomy cutting tool for use in incising plaque at a stenosis in an artery of a patient includes a guide wire, an over-the-wire catheter, and a camming mechanism which is...
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5224945 |
Compressible/expandable atherectomy cutter
An expandable and compressible atherectomy cutter for cutting plaque from a stenosis in an artery includes a cutter assembly which, relative to its axis of rotation, has a plurality of radially...
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5222965 |
Teat knife
A simplified unitary teat knife is formed of stainless steel rod with a knurled knob on one end and an eye on the other. The eye is flattened and enlarged relative to the rod of the knife and the...
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5211683 |
Method of implanting a graft prosthesis in the body of a patient
A method of implanting a graft prosthesis in the body of a patient to bypass a segment of a blood vessel. A graft is positioned so that one end of the graft is located substantially adjacent the...
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5211651 |
Catheter atherotome
A catheter atherotome (10) and method for its use for performing partial atherectomy in an artery and thereby enlarging the lumen effectively available for blood flow through the artery. Several...
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5209749 |
Fluoroscopically alignable cutter assembly and method of using the same
A fluoroscopically alignable assembly is set forth. A longitudinally extending element support is extendable into a body cavity. The element, which may be in the nature of a cutting element, is...
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5201750 |
Dilation catheter with motor drive for dilation of blood vessels
A dilation catheter for reopening blood vessels includes an electrical motor drive and is insertable through vessels leading to a constriction point and has a working head for widening the vessel...
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5197485 |
Method and apparatus for sampling aortic plaque
Apparatus and method for detecting the presence of friable atheromatous deposits in or near the aortic arch of a patient. Fluid aspirated from the aorta in the region of the inner curvature of the...
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5195954 |
Apparatus for the removal of deposits in vessels and organs of animals
An apparatus for removing deposits, such as patches in vessels and stones in organs of animals is described, which has a hollow guidance part, a motor and a shaft driven by the latter and...
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5195956 |
Medical catheter with a cutting device
In a medical catheter, a cutting device is provided, which has a rotary cutting tool positioned at a front end of a tube and which is axially displaceable relative thereto between a working...
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5192268 |
Flexible thrombectomy system
A flexible thrombectomy system insertable into a patient's blood vessel for sucking and removing a thrombus, comprising in combination, a flexible piston, slidably disposed in a flexible catheter...
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5192291 |
Rotationally expandable atherectomy cutter assembly
A rotationally expandable atherectomy cutter assembly for cutting plaque from a stenosis in an artery includes a plurality of radially separated and axially aligned blade elements. The distal ends...
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5181920 |
Atherectomy device with angioplasty balloon and method
An atherectomy device for reducing stenosis material from a vascular vessel is provided. The atherectomy device includes an elongated flexible tubular member having at least one lumen extending...
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5178625 |
Catheter atherotome
A catheter atherotome and method for its use for performing partial atherectomy in an artery and thereby enlarging the lumen effectively available for blood flow through the artery. An expansible...
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5176693 |
Balloon expandable atherectomy cutter
A balloon expandable atherectomy cutter for removing plaque from an artery includes an elongated cutter assembly having a plurality of blades which, with respect to the axis of rotation of the...
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