Boston Scientific Corporation

Medrad, Inc.

Possis Medical, Inc.

Boston Scientific Scimed, Inc.

Embolitech, LLC

Other

Bayer Medical Care Inc.

University of Minnesota

Bayer Healthcare LLC

Bayer Pharma Aktiengesellschaft

Boston Scientific Medical Device Limited

Surmodics Md, LLC

Michael John Bonnette

Eric Joel Thor

Debra M Kozak

David Brian Morris

Stephen E Weisel

Richard Prather

Douglas J Ball

Hieu V Le

Michael P Schrom

John Edward Morris

John Lloyd Teschendorf

Mark Lynn Jenson

Jason T Anderson

Cindy M Setum

Steven E Wiesel

Robert C Dutcher

Laszlo Trent Farago

John Bridgeman

Gary Ansel

Rosemary C Beaupre

Ernest Ralph Scherger

Douglas L Ball

Arthur E Uber, Iii

David Charles Cummings

David Woodruff West

Martyn Stuart Abbott

Daniel Joseph Kneip

Jason M Bronstad

Nicole Jaye Aasen

Walter Charles Croll

James Fredrick Karpinski

Jeffrey William Rogers

Robert G Dutcher

Diana Dutcher

Corey Rasch

Chad Grant

Mark Alfred Hilse

Kenneth R Larson

Barry Lynn McDaniel

Katherine Stryker Brodeen Routh

Jeffrey Alan Nylund

Leif E Leirfallom

John Christopher Riles

William Joseph Drasler

David M Griffiths

Arun Saini

Charles J Gantzer

Michael J Semmens

John Riles

Lief E Leirfallom

Kane Smith

Daniel T Janse

Brian D Bruckner

John L Tedeschendorf

Marvin Harris York

Dan T Janse

Rick C Kravic

Amanda J Wong

Gary M Ansel

Chad Nicholas Grant

Stephen Earl Weisel

James Frederick Karpinski

Douglas James Ball

Laszio T Farago

Richard R Prather

Michael Schrom

John C Riles

A direct stream hydrodynamic catheter system is provided for the removal of thrombus, lesions and the like including provisions for the infusion of drugs, lysing fluids and the like into a blood vessel. Physician controlled powered direct fluid jet streams emanate from a fluid jet emanatory in the form of robust radially directed fluid jet streams to impinge upon and ablate difficult and strong thrombus and lesions within a blood vessel. Effluent aspiration is controlled by an exhaust regulator in the form of a roller pump, but effluent removal can be assistingly influenced by the fluid pressure associated with the radially directed fluid jet streams.

Direct stream hydrodynamic catheter system

A matter elimination catheter includes a catheter body extending from a catheter proximal portion to a catheter distal portion. The catheter body includes an infusion lumen, an aspiration lumen fluidly isolated from the infusion lumen, and a septum interposed between the infusion and aspiration lumens. A drive shaft is within the infusion lumen and is configured to provide rotation near the catheter distal portion. A guide wire lumen is within the drive shaft, and the infusion lumen, the drive shaft and the guide wire lumen are fluidly separated from the aspiration lumen with the septum. In one example, fluid bearings are formed between one or more of the catheter body and drive shaft or the drive shaft and a guide wire or guide wire liner when supplied with infusion fluid through the infusion lumen.

Infusion lubricated atherectomy catheter

A thrombectomy catheter system can include a catheter configured for insertion into vasculature of a patient. The system includes a pressure chamber configured to isolate an internal volume from a surrounding environment. The system can include an infusion container including an infusion fluid therein. The pressure chamber can receive the infusion container. A drive unit can pressurize a working fluid in the pressure chamber with the infusion container received in the pressure chamber. In an example, pressurizing of the working fluid correspondingly compresses the infusion container to pressurize the infusion fluid and transfer the infusion fluid to the catheter. In an example, the infusion fluid is isolated from the working fluid by the infusion container when the working fluid is pressurized in the pressure chamber.

Pumpless thrombectomy system

An accessory device may be used in combination with a thrombectomy catheter. The accessory device may be configured to deflect a distal portion of the thrombectomy catheter and/or disrupt a lesion in a vessel.

Accessory devices for use with catheters

An infusion catheter system may deliver a therapeutic agent to a desired location in the body. The system may include an elongate catheter shaft having a proximal end region, a distal end region, a distal opening, and a lumen extending between the proximal end region and distal opening. The distal end region may include a coiled portion having a preformed coiled configuration including a plurality of helically wound rings. A plurality of apertures may be formed through a sidewall of the coiled portion. A guidewire may be configured to be slidably disposed within the lumen of the catheter shaft. The guidewire may include a proximal end region having a first cross-sectional dimension, an enlarged distal end region having a second cross sectional dimension greater than the first cross-sectional dimension, and an intermediate region disposed between the proximal end region and the distal end region.

Infusion catheter

An infusion system includes a double action infusion pump. The pump includes a cylinder and a reciprocating piston received within the cylinder, the reciprocating piston separating a first pump chamber from a second pump chamber of the cylinder. A reciprocating motor is coupled with the reciprocating piston, and the first and second pump chambers alternate between filling and evacuating conditions with reciprocation of the reciprocating piston through operation of the reciprocating motor, and the speed of reciprocation is varied to provide a continuous output of fluid between the first and second pump chambers. A fluid source and a catheter are optionally coupled with the double action infusion pump. The catheter includes one or more infusion ports near a catheter distal portion, and the one or more infusion ports receive and expel the continuous output of fluid from the double action infusion pump.

Double action infusion pump

An infusion catheter is disclosed. An example infusion catheter includes an elongate tubular member having a proximal portion and a distal portion, wherein the distal portion includes an infusion region extending along a portion thereof. Further, the infusion region of the elongate tubular member includes a plurality of apertures, and the apertures reduce the surface area of the infusion region by 0.25%-10%.

Infusion catheter with high pressure capabilities

A catheter including at least one distal opening positioned at or near the distal end and at least one proximal opening near the proximal end and proximal to the at least one distal opening is described. The catheter may be configured for delivering at least a first fluid through the at least one distal opening to a central circulation system of a patient and delivering at least a second fluid through the at least one proximal opening to a peripheral circulation system of the patient.

Catheters and related equipment

An intravascular emboli capture and retrieval system for intravascular embolism protection and embolism removal or maceration. Guidewire mounted proximally and distally located multiple opening filters are deployed within the vasculature and used to part, divide and macerate embolic debris and to capture such embolic debris within the confines thereof. A deployable flexible preformed memory shaped capture sleeve is alternatively used to collapse one or more filters and embolic debris therein for subsequent proximal withdrawal from the vasculature.

Intravascular guidewire filter system for pulmonary embolism protection and embolism removal or maceration

A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.

Hydrodynamic eccentrically pivoting catheter

Growing community of inventors

Minneapolis, MN, United States of America

Michael John Bonnette