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5591184 |
Fluid jet surgical cutting instrument
A fluid jet surgical cutting instrument having a pressure generating mechanism disposed within the housing of the instrument. The pressure generating mechanism includes a piston member which is...
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5584842 |
Valvulotome and method of using
A valvulotome for disrupting vein valves in in-situ procedures, and for distrupting the vein valves in vein segments to be used in CABG procedures. The valvulotome includes an elongate blade...
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5584843 |
Shaped wire multi-burr rotational ablation device
The invention is a device for medical applications for differentially cutting abnormal deposits from within a patient's vessels. The device comprises one or more diamond plated burrs or cuffs...
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5571130 |
Atherectomy and prostectomy system
An improved system for removing atheromas in a blood vessel or ablating tissue of a gland that includes a catheter with a housing containing a cutout or window at its distal end, and an excising or...
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5571167 |
Bypass grafting method
A method of implanting a graft in the body of a patient to bypass a segment of a blood vessel includes the steps of: (1) securing a first end of the graft to the blood vessel at a first location...
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5569204 |
Aspiration catheter arrangement
An aspiration catheter arrangement for aspiration of thrombi and emboli from blood vessels has a central catheter (2) and an outside catheter (1) surrounding it coaxially. A guide wire (4) and a...
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5569275 |
Mechanical thrombus maceration device
In one embodiment, the present invention provides a mechanical thrombus maceration device which includes a flexible shaft adapted to be guided along a vascular path and rotated within a vascular...
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5569279 |
Surgical abrading device
An abrading device for use in surgery such as cataract removal utilizing an element having a resilient body. The element includes an outer surface capable of abrading cellular material from a...
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5569277 |
Atherectomy device having helical blade and blade guide
An atherectomy catheter includes a catheter body having a cylindrical housing at its distal end. The cylindrical housing includes an elongate cutting aperture on one side thereof and a mechanism...
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5556405 |
Universal dilator with reciprocal incisor
A device for incising and dilating a stenosis in a vessel of a patient includes a dilator housing and a plurality of incising blades which can be selectively extended distally from the housing....
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5556408 |
Expandable and compressible atherectomy cutter
An expandable and compressible atherectomy cutter for cutting plaque from a stenosis includes a distal hub and a proximal hub joined by a plurality of resilient blades. The blades are shaped to...
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5554163 |
Atherectomy device
A rotational atherectomy device having directional control for selectively removing tissue from an artery (or other bodily passageway or cavity). The atherectomy device includes a rotational...
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5542917 |
Ultrasound delivery catheters incorporating improved distal tip construction
Ultrasound delivery catheters comprising elongate flexible catheter bodies having rigid distal tip or head members inserted into, and affixed thereto. At least one ultrasound transmission member...
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5540656 |
Ultrasonic angioplasty device having surface disruptions
An ultrasonic angioplasty device comprising an elongate ultrasound transmission member having a proximal end attachable to an ultrasound generating device and a bulbous distal head or probe formed...
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5527326 |
Vessel deposit shearing apparatus
An apparatus formed of a flexible coil concentrically disposed around a flexible wire includes one or more radially expansible, helically configured wire loops. The loops grip deposits within a...
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5527330 |
Fluid cutting instrument
A cutting and suctioning instrument is disclosed for use in surgery which is adapted for coupling to an external high pressure fluid source and an external vacuum source, which comprises an...
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5527325 |
Atherectomy catheter and method
An improved atherectomy catheter and methods of making and using a catheter are disclosed. In one embodiment, the catheter comprises a housing shaft having a torsionally-reinforced outer layer...
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5527327 |
Valvulotome
An improved valvulotome structure characterized by an elongate flexible shaft having proximal and distal ends and a cylindrical cutting member externally mounted around said shaft for axial...
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5522825 |
Medical instrument for the removal of deposits formed on the inner walls of the arteries or veins
The instrument comprises an outer tube (1) fixed to the end of a flexible sheath (2), and an inner tube (3) displaceable in the outer tube and equipped with a head (5), to which is fixed a...
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5522824 |
Valvulotome and method for making and using same
A valvulotome for disrupting a valve in a vein includes an elongate control member and a cutting head disposed at the distal end of the control member. The cutting head includes an elongate section...
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5522826 |
Thromboendarterectomy dissector and suction instrument
A suction dissector for performing coronary, systemic or pulmonary thromboendarterectomy includes a unitary elongated instrument having an elongated tubular handle section and an elongated tubular...
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5520635 |
Method and associated device for removing clot
A method for removing a clot utilizes a surgical instrument or device including an elongate tubular member having a most distal first opening, a relatively central second opening and a most...
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5514150 |
Micromachined conveyor devices
Various forms of micromachined electrostatic microconveyors and useful devices based thereon are described. In one embodiment, a tube shaped conveyor is formed by disposing conductors...
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5514151 |
Valvulotome with a laterally offset curved cutting edge
A valvulotome that cuts a vein valve leaflet from apex to edge by applying a tensile force to the leaflet. The valvulotome has a shaft, on the distal end of which is a laterally-offset extension,...
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5512044 |
Embolic cutting catheter
An embolic cutting catheter includes a catheter body having a passage defined therein and supporting an inflatable balloon on the exterior surface thereof. A generally cylindrical housing is...
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5507760 |
Cutter device
Disclosed herein is a cutter capable of removing soft and hard tissue when used with an atherectomy catheter of the type having a cutter housing attached to the distal end of a catheter having a...
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5496267 |
Asymmetric water jet atherectomy
A technique for ablation and removal of plaque deposits from the arterial, venous, vascular graft or other tissue wall of a patient. Ablation is accomplished by directing a high pressure jet of...
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5480379 |
Ultrasonic dissector and detacher for atherosclerotic plaque and method of using same
An apparatus for removing atherosclerotic plaque includes a probe attachable to an ultrasound transducer and a catheter surrounding a transmission part of the probe for conveying liquid to the...
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5476450 |
Apparatus and method for aspirating intravascular, pulmonary and cardiac obstructions
Disclosed is an apparatus and technique for aspirating substances partially or completely occluding blood vessels or chambers of the heart. The aspirator assembly comprises a catheter assembly and...
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5453088 |
Hydrodynamic suction catheter
The drainage catheter comprises a basic tubular body having a distal end, a proximal end, a pressure channel in the tubular body and a discharge channel in the tubular body, the distal end having a...
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5449369 |
Flexible elongate device having a vibratory impact tip and method of its use
A flexible elongate device including a flexible elongate tubular member having proximal and distal extremities. A flexible coil spring is provided having proximal and distal extremities. The...
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5441510 |
Bi-axial cutter apparatus for catheter
An cutter apparatus for removing obstructive tissue has a distal housing having a window for invaginating tissue. An axially reciprocating and rotating cutting blade makes successive longitudinal...
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5429136 |
Imaging atherectomy apparatus
An atherectomy catheter having ultrasound imaging capability provided by an acoustic transducer disposed within a catheter housing which includes a circular cutting edge for removal of stenotic...
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5423838 |
Atherectomy catheter and related components
An atherectomy catheter includes a catheter shaft having three lumens. The central lumen supports a central wire on which is mounted a shell-shaped cutter. The cutter is exposed to the exterior of...
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5419774 |
Thrombus extraction device
This invention is a method and device for quickly removing thrombus from the vascular system, particularly from a saphenous vein graft which can have highly organized thrombus over its entire...
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5417703 |
Thrombectomy devices and methods of using same
A novel intravascular device for removing vascular occlusion material comprises an elongate tube intravascularly insertable into a patient including a vascular occlusion removal element and a...
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5411509 |
Embolectomy catheter
An improved embolectomy catheter, includes a catheter body, an elastomeric foam catheter tip attached at one end of the catheter body, and actuator means for elastically deforming the catheter tip....
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5409454 |
Apparatus for atherectomy
A catheter is disclosed which is capable of cutting obstructive tissue from a vessel of a living body while shielding a portion of the wall of the vessel from being exposed to the cutting blade at...
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5395315 |
Drainage catheter
A drainage catheter comprises a tubular basic catheter body defining separate catheter lumens respectively comprising a pressure channel and a discharge channel. Connectors are provided at the...
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5395311 |
Atherectomy catheter
An atherectomy catheter including an expandable cutter head having spaced apart blades radially extending from a cutter sleeve at a leading end of the cutter head. A torque tube is attached to and...
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5395384 |
Instrument for the extraction of patho-logical vein sections such as varices
Instrument (1) designed, in particular, to permit the extraction of vein sections such as, for example, varices, including a two-piece supple cable (2) that is flexible and strong, both ends of...
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5372601 |
Longitudinal reciprocating incisor
An medical instrument which is insertable into an arterial system to incise an arterial stenosis is provided and includes a cutting member selectively covered by a catheter sheath. The sheath is...
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5368603 |
Endarterectomy catheter, and method of use thereof
An endarterectomy catheter for removing obstructions from an artery comprises a cylindrical housing, the housing having an opening across which a primary shear is movable. The primary shear is...
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5366464 |
Atherectomy catheter device
An atherectomy catheter device including a flexible casing, an elongated flexible tubular coil in the casing, a window extending axially in the flexible tubular coil and casing for placement in...
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5366463 |
Atherectomy catheter for the removal of atherosclerosis from within blood vessels
An atherectomy catheter for the removal of atherosclerosis, thrombosis, cholesterol deposits, fatty nodules, and other such sclerotic material from within the blood vessels of a patient. According...
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5360432 |
Abrasive drive shaft device for directional rotational atherectomy
An abrasive drive shaft atherectomy device for removing stenotic tissue from an artery. The device includes a rotational atherectomy apparatus having a flexible, elongated drive shaft having a...
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5360433 |
Teat knife
The proposal relates to a teat knife with a base element (2), a knife sheath (5), and a knife (9) with adjustable swivel angle. The teat knife is characterized in that the knife (9) is constructed...
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5358472 |
Guidewire atherectomy catheter and method of using the same
An atherectomy catheter device includes an improved guidewire system including a guidewire port member secured to the distal tip portion of the outer tubular member of an atherectomy catheter of...
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5358507 |
Thromboendarterectomy suction dissector
A suction dissector for performing coronary, systemic or pulmonary thromboendarterectomy including a unitary elongated instrument having an elongated tubular handle section and an elongated tubular...
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5358509 |
Atherectomy catheter with improved fluid infusion
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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