Avinger, Inc.

Abbott Cardiovascular Systems, Inc.

Acclarent, Inc.

Abbott Laboratories Corporation

Endovascular Technologies, Inc.

Abbott Laboratories Vascular Enterprises Limited

Tusker Medical, Inc.

Other

Advanced Cardiovascular Systems, Inc.

Abbott Vascular Solutions Inc.

Lifeport Sciences, LLC

Abbott Vascular Solutioms Inc.

Richard Roy Newhauser, Jr

Randolf Von Oepen

Travis Richard Yribarren

David T Pollock

Octavian Iancea

Juan I Perez

Thomas R Jenkins

Himanshu N Patel

Matthew J Fitz

Timothy A M Chuter

Kevin Joe Ehrenreich

Anthony J Fernandez

Robin W Eckert

Eric A Goldfarb

John B Simpson

Arnold M Escano

John H Morriss

John Joseph Stankus

Rohit Kulbhushan Girotra

Greg Liu

Mei Y Pader

William E Webler, Jr

Reid K Hayashi

Serena Swei Loh

Arthur M Lin

Shuji Uemura

Lorcan James Coffey

Thomas Rieth

John Warren White

Joshua Makower

Luke W Clauson

Peter H Smith

Matthew B Newell

James M Jacobs

Scott O Chamness

Theodore W Ketai

Tom Thanh Vo

Mina W B Chow

Ryan Radjabi

Shahrokh R Farahani

Aleta A Tesar

Xuanmin He

Rohit Girotra

John Y Chang

Bernard H Andreas

Scott J Baron

Paul G Hayter

Jeffrey Allen Walker

Mark West Askew

Mark LeMere

George D Caffell

Michael J Gottesman

Myra L Fabro

Vincent Yeh

Tina Ton

Vivianne M Holt

Daniel L Cox

William Earl Webler, Jr

Maegan K Spencer

Marc Gianotti

Michael Zung

Kent C B Stalker

Charles W McNall

Stephen Charles Davies

Bernhard Uihlein

Priyanshu Gupta

Nicholas J Spinelli

Rainer Bregulla

Kelly Justin McCrystle

Barbara E Stamberg

Manish Kankaria

Karim Said Osman

Ian J Clark

Thomas E Jenkins

Wendy Ngo Lam

Gregory Liu

An atherectomy catheter includes an elongate catheter body, a cutter at a distal end of the catheter body, and a nosecone attached to a distal end of the catheter body. The cutter is configured to excise tissue from the body. The nosecone is configured to hold tissue excised from the cutter. The nosecone includes a distal section, a proximal section, and a connection mechanism that is configured to allow the distal section to attach and detach from the proximal section during use. The distal section includes a plug configured to sit within an inner diameter of the proximal section when the proximal section is connected to the distal section.

Catheter device with detachable distal end

A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a central guidewire lumen, a distal grinding surface, and a fluted portion. The distal grinding surface can be substantially perpendicular to the guidewire lumen and include divots and sharp points that form pyramidal features, where the sharp points extend distally from the distal grinding surface. The fluted portion can have flutes extending around a circumference of the rotatable tip proximal to the distal grinding surface. The fluted portion may not include the divots and sharp points that form the pyramidal features of the distal grinding surface.

Occlusion-crossing devices

An atherectomy catheter device includes an elongate body, a drive shaft extending proximally to distally within the elongate body, and a cutter attached to the drive shaft. The cutter includes a serrated annular cutting edge formed on a distal edge of the cutter and a recessed bowl extending radially inwards from the annular cutting edge to a center of the cutter. The recessed bowl has a first curvature. The cutter further includes a plurality of grinding segments extending inwardly from the distal edge within the bowl. Each of the plurality of segments has a second curvature that is different from the first curvature.

Atherectomy catheter with serrated cutter

Described herein is a system and method for identifying elastic lamina during interventional procedures, such as atherectomy. Such identification can be used to avoid trauma to the external elastic lamina during the procedure.

Identification of elastic lamina to guide interventional therapy

An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body.

Atherectomy catheters and occlusion crossing devices

A guide catheter for use in treating sinuses, the catheter including a catheter shaft configured to provide suction about a balloon catheter and a distal portion shaped for navigating body anatomy. In one embodiment, the guide catheter includes a valve for sealing the balloon catheter and a vent for controlling suction.

Guide system with suction

A medical device and method for the treatment of a sinus opening includes a handle, a guide catheter, a guide wire, a balloon catheter, a guide wire movement mechanism and a balloon catheter movement mechanism. The handle has proximal and distal ends and a longitudinal axis along the length of the handle. The guide catheter is attached to the distal end of the handle and has a catheter lumen. The guide wire and balloon catheter are both disposed at least partially in the handle and catheter lumen. The guide wire movement mechanism and the balloon catheter movement mechanism are both operatively disposed on the handle. In addition, the guide wire movement mechanism is configured for advancement and retraction of the guide wire through the handle and catheter lumen by user operation of the guide wire movement mechanism. Moreover, the guide wire movement mechanism includes an integrated guide wire locking and rotation mechanism configured for rotation of the guide wire and for securely locking and unlocking the guide wire to the guide wire movement mechanism. Furthermore, the balloon catheter movement mechanism is configured for advancement and retraction of the balloon catheter through the handle and catheter lumen by user operation of the balloon catheter movement mechanism.

Medical device and method for treatment of a sinus opening

A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.

An irrigation catheter for the treatment of the sinus anatomy is described. The catheter comprises a proximal portion, a rigid middle portion, and a flexible distal portion. The flexible distal portion comprises an irrigation tip and the proximal portion has a stiffness that is intermediate the stiffness of the rigid middle portion and the flexible distal portion. The irrigation tip has a tip opening and one or more radially facing openings. A method for irrigating or suctioning the sinus anatomy includes inserting an irrigation catheter into a patient's anatomy and irrigating or suctioning a target space.

Devices and methods for transnasal irrigation or suctioning of the sinuses

A system and method for use in iontophoretic anesthesia of a tympanic membrane are disclosed. The system generally includes an earplug and an electrode device. The earplug includes at least one sealing member for sealing the earplug in an ear canal. The sealing member includes microholes which vent fluid above a certain pressure threshold. A headset may connect the earplug to a second earplug. The method involves using the system on a human or animal subject.

Systems and methods for anesthetizing ear tissue

A method is disclosed for clearing effusion from an ear. The method may include applying liquid to an ear canal, which is proximal to a perforated tympanic membrane, which is proximal to a middle ear containing effusion, applying an ear device to seal and pressurize the liquid inside the ear canal, the ear device regulating the amount of pressure inside the ear canal, and inducing a Eustachian tube, which is distal to the middle ear, to open, which causes the fluid to displace the effusion into the Eustachian tube.

Silent effusion removal

Atherectomy catheters and methods of using them are described herein. In particular, described herein are optical coherence tomography (OCT) catheters that may include a distal tip that can be deflected away from the long axis of the device using a multi-channel bushing. The bushing may include at a hinge point that is offset (e.g., located on a side of the elongate body near the distal end of the elongate body) and a rotatable cutter near an imaging assembly that can be driven against the wall with a high mechanical advantage.

Atherectomy catheters devices having multi-channel bushings

Growing community of inventors

Redwood City, CA, United States of America

Richard Roy Newhauser, Jr