Boston Scientific Scimed, Inc.

St. Jude Medical, Cardiology Division, Inc.

Benjamin Breidall

Joseph Alan Kronstedt

Daniel H VanCamp

Troy Terrance Tegg

Daniel Joe Potter

Andrew R Oliverius

Sameer Pai

Travis J Schauer

Xuan Yen Khieu

Paul F Chouinard

Steven R Larsen

Laszlo Trent Farago

Brian J Hanson

Kimberly Robertson

Nathan Edwards

Kalyna Sconzert

Derek Kenneth Larson

Kevin Martin

Matthew Hart

Megan Johnson

Corey N Meyer

Nathan Adams

Victoria Velez

Kalyna L Sconzert

A catheter tip is disclosed comprising a tip electrode comprising a ledge feature, and a center cavity and a manifold assembly comprising a fluid lumen manifold and a stop tube. The stop tube can be coupled to the fluid lumen manifold and configured to abut the ledge feature such that a distal end of the fluid lumen manifold extends a pre-determined distance into the center cavity of the tip electrode. The fluid lumen manifold can comprise a plurality of sideholes which can be sized and configured to distribute an irrigant to the tip electrode. The catheter tip can comprise a flexible tip electrode.

Flex tip fluid lumen assembly with termination tube

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

Blood pump shaft bearing

Devices and methods for assisting blood flow are provided. The device includes a housing with an inlet and an outlet, and a fluid barrier separating the housing into a first section containing the inlet and outlet, and a second section. The device also includes an impeller shaft coupled to an impeller and a first magnet in the first section of the housing, and a drive shaft coupled to a second magnet in the second section of the housing. The first and second magnets are arranged such that rotation of the drive shaft rotates the second magnet causing rotation of the first magnet, which drives the impeller.

Magnetic coupler for hemostatic rotor sealing

A bearing assembly is configured to retain an end of an impeller of a blood pump and includes a thrust plate having a distal-facing surface and an impeller bearing surface configured to be disposed adjacent the distal-facing surface such that a gap is defined between the distal-facing surface of the thrust plate and the impeller bearing surface. The impeller bearing surface includes at least one washout blade disposed thereon and configured to facilitate blood flow through the gap.

Reduced thrombosis blood pump with washout bearing

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include a drive shaft coupled to an impeller, a driven magnet assembly coupled to at least one of the drive shaft and the impeller, and a driving coil assembly configured to drive the driven magnet assembly.

Electromagnetically driven blood pump

An axial flux motor includes a housing; a drive shaft disposed within the housing; at least one rotor; and at least one stator. The at least one rotor includes a diametrically-magnetized single pole pair magnetic ring having a rotor aperture defined through the center of the magnetic ring, where the drive shaft extends through the rotor aperture and where the at least one rotor is fixed to the drive shaft. The at least one stator includes a number of conductive windings and a stator aperture, where the drive shaft extends through the stator aperture and where the drive shaft is rotatable within the aperture. The at least one stator is configured to generate an axial magnetic field that causes the at least one rotor to rotate, thereby rotating the drive shaft.

Axial flux motor for percutaneous circulatory support device

Various aspects of the present disclosure are directed to apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include an impeller, a drive shaft, a driven magnet assembly, a driving magnet assembly, and a flux enhancer.

Magnetic drives having flux enhancers for blood pumps

A bearing assembly is configured to retain a distal end of an impeller of a blood pump, where the impeller includes a drive shaft. The bearing assembly includes a pivot member coupled to a distal end of the drive shaft; a distal bearing cup having a proximally-facing surface configured to engage at least a portion of a distal section of the pivot member; and a sleeve bearing disposed around at least a portion of a proximal section of the pivot member.

Reduced thrombosis blood pump

The present invention relates generally to medical devices and, in particular, to an introducer sheath that includes a shaft including a tubular portion, an expandable portion coupled to the tubular portion and a longitudinal axis. Additionally, the expandable portion includes a first pair of leaflets and a second pair of leaflets and both the first pair of leaflets and the second pair of leaflets extend along the longitudinal axis. Additionally, the second pair of leaflets are spaced radially inward of an inner surface of the first pair of leaflets and the expandable portion is designed to shift between a first configuration and a second radially expanded configuration.

Growing community of inventors

Eden Prairie, MN, United States of America

Benjamin Breidall