公开(公告)号：US20180335037A1

公开(公告)日：2018-11-22

申请号：US15983261

申请日：2018-05-18

Applicant: HeartWare, Inc.

Inventor： Charles R. SHAMBAUGH ,  Mustafa Ertan TASKIN ,  Stanley P. MACK ,  Jeffrey A. LAROSE

IPC: F04D13/06 ,  F04D3/02 ,  F04D29/18 ,  F04D29/041 ,  F04D29/047 ,  F04D29/02 ,  A61M1/10

CPC classification number: F04D13/0673 ,  A61M1/1017 ,  A61M1/1036 ,  A61M2205/0272 ,  F04D3/02 ,  F04D29/026 ,  F04D29/041 ,  F04D29/0476 ,  F04D29/181

Abstract: A pump rotor including a hub defining a major longitudinal axis. A magnet is disposed within the hub along the major longitudinal axis. A plurality of rotor blades project outwardly from the hub away from the longitudinal axis and are spaced apart from one another in a circumferential direction around the longitudinal axis. Each of the plurality of rotor blades define a hydrodynamic bearing at an outer extremity thereof remote from the hub. The plurality of rotor blades define a plurality of flow channels. Each of the plurality of rotor blades is configured to drive a fluid through the flow channels upon rotation of the rotor around the axis.

公开(公告)号：US20190046703A1

公开(公告)日：2019-02-14

申请号：US15676281

申请日：2017-08-14

Applicant: HeartWare, Inc.

Inventor： Charles R. SHAMBAUGH ,  Jeffrey A. LAROSE ,  Mustafa E. TASKIN

IPC: A61M1/10 ,  A61M1/12 ,  F04D13/02 ,  F04D29/06

CPC classification number: A61M1/1012 ,  A61M1/1029 ,  A61M1/125 ,  F04D13/021 ,  F04D29/061

Abstract: A connection system for an implantable blood pump including a pump housing having an impeller disposed therein and a motor housing including a motor disposed therein, the motor housing spaced a distance from the pump housing. A flexible outer sheath couples the pump housing to the motor housing, the outer sheath defining a maximum total length between 7 and 10 centimeters. An inner shaft is coaxial with the outer sheath and couples the motor to the impeller.

公开(公告)号：US20170281841A1

公开(公告)日：2017-10-05

申请号：US15472669

申请日：2017-03-29

Applicant: HeartWare, Inc.

Inventor： Jeffrey A. LAROSE ,  Charles R. SHAMBAUGH ,  Mustafa E. TASKIN

IPC: A61M1/10 ,  A61M1/12

CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1086 ,  A61M1/122

Abstract: A blood pump including a housing defining a fluid flow path, an upstream end, a downstream end, and an outlet at the downstream end. A rotor is disposed within the housing and within the fluid flow path, the rotor being rotatable independent of the housing in a first direction and configured to pump blood downstream toward the outlet. The housing defines an inflow cannula at the upstream end, the inflow cannula defining a proximal end proximate the rotor and an opposite distal end. The inflow cannula defines a major longitudinal axis and minor longitudinal axis, the distal end of inflow cannula defines a plurality of slots radially disposed about the distal end, the plurality of slots being at least one from the group consisting of sloped in the first direction with respect to the major longitudinal axis and angled in the first direction with respect to the minor longitudinal axis.

公开(公告)号：US20180339092A1

公开(公告)日：2018-11-29

申请号：US16053023

申请日：2018-08-02

Applicant: HeartWare, Inc.

Inventor： Jeffrey A. LAROSE ,  Charles R. SHAMBAUGH ,  Daniel G. WHITE ,  Richard A. MARQUIS ,  Steven A. WHITE ,  Kartikeyan TRICHI

IPC: A61M1/12 ,  A61M1/10

CPC classification number: A61M1/125 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  A61M2205/0211 ,  A61M2205/0272 ,  A61M2205/8206 ,  A61M2210/127

Abstract: One aspect of an intravascular ventricular assist device is an implantable blood pump where the pump includes a housing defining a bore having an axis, one or more rotors disposed within the bore, each rotor including a plurality of magnetic poles, and one or more stators surrounding the bore for providing a magnetic field within the bore to induce rotation of each of the one or more rotors. Another aspect of the invention includes methods of providing cardiac assistance to a mammalian subject as, for example, a human. Further aspects of the invention include rotor bodies having helical channels formed longitudinally along the length of the body of the rotor where each helical channel is formed between peripheral support surface areas facing radially outwardly and extending generally in circumferential directions around the rotational axis of the rotor.

公开(公告)号：US20180028734A1

公开(公告)日：2018-02-01

申请号：US15669520

申请日：2017-08-04

Applicant: HeartWare, Inc.

Inventor： Jeffrey A. LAROSE ,  Charles R. SHAMBAUGH ,  Kartikeyan TRICHI ,  Richard A. MARQUIS ,  Daniel G. White

IPC: A61M1/10 ,  A61M1/12

CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  F04D3/02 ,  F04D29/0476

Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction. The volute has a flow-improving member extending axially from the volute and into and coaxially with the tubular housing.

公开(公告)号：US20210290938A1

公开(公告)日：2021-09-23

申请号：US17144290

申请日：2021-01-08

Applicant: HeartWare, Inc.

Inventor： Mustafa E. TASKIN ,  Charles R. SHAMBAUGH

IPC: A61M60/857 ,  A61M60/226

Abstract: An inflow cannula for an implantable blood pump having an impeller defining a plurality of flow channels, the inflow cannula includes a proximal end a distal end proximate the impeller, the distal end including a protuberance extending outward from the inflow cannula.

公开(公告)号：US20180126054A1

公开(公告)日：2018-05-10

申请号：US15866957

申请日：2018-01-10

Applicant: HeartWare, Inc.

Inventor： Jeffrey A. LAROSE ,  Charles R. SHAMBAUGH ,  Daniel G. WHITE ,  Richard A. MARQUIS ,  Steven A. WHITE ,  Kartikeyan TRICHI

IPC: A61M1/12 ,  A61M1/10

CPC classification number: A61M1/125 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  A61M2205/0211 ,  A61M2205/0272 ,  A61M2205/8206 ,  A61M2210/127

Abstract: One aspect of an intravascular ventricular assist device is an implantable blood pump where the pump includes a housing defining a bore having an axis, one or more rotors disposed within the bore, each rotor including a plurality of magnetic poles, and one or more stators surrounding the bore for providing a magnetic field within the bore to induce rotation of each of the one or more rotors. Another aspect of the invention includes methods of providing cardiac assistance to a mammalian subject as, for example, a human. Further aspects of the invention include rotor bodies having helical channels formed longitudinally along the length of the body of the rotor where each helical channel is formed between peripheral support surface areas facing radially outwardly and extending generally in circumferential directions around the rotational axis of the rotor.

公开(公告)号：US20180117226A1

公开(公告)日：2018-05-03

申请号：US15795436

申请日：2017-10-27

Applicant: HeartWare, Inc.

Inventor： Charles R. SHAMBAUGH ,  Mustafa Ertan TASKIN

IPC: A61M1/10 ,  B33Y80/00

CPC classification number: A61M1/1036 ,  A61M1/1012 ,  A61M1/1017 ,  A61M1/122 ,  A61M2207/00 ,  B29C64/135 ,  B29K2995/0056 ,  B29L2031/753 ,  B33Y10/00 ,  B33Y80/00

Abstract: A blood pump casing including a unitary body. The unitary body defines an inlet chamber extending along a first axis and having a first radius perpendicular to the first axis. A transition chamber is connected to the inlet chamber and has a wall extending in a circumferential direction around the first axis, the wall has a major radius and a minor radius from the first axis, the major radius being greater than the first radius. A post extends from the transition chamber into the inlet chamber along the first axis, the post tapers in the direction around the first axis toward the inlet chamber. An outlet is connected to the transition chamber and extends along a second axis transverse to the first axis.

公开(公告)号：US20180010608A1

公开(公告)日：2018-01-11

申请号：US15689567

申请日：2017-08-29

Applicant: HeartWare, Inc.

Inventor： Jeffrey A. LAROSE ,  Charles R. SHAMBAUGH

IPC: F04D13/06 ,  A61M1/10 ,  A61M1/12 ,  F04D29/047 ,  F04D29/041 ,  F04D7/04 ,  F04D29/22 ,  F04D29/048

Abstract: A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.

公开(公告)号：US20190105438A1

公开(公告)日：2019-04-11

申请号：US16149391

申请日：2018-10-02

Applicant: HeartWare, Inc.

Inventor： Stanley P. MACK ,  Charles R. SHAMBAUGH

IPC: A61M1/36 ,  F16L37/30 ,  F16L37/244

Abstract: A dry disconnect device including a first portion defining an outlet and an outlet portion of a fluid pathway and a female valve disposed within the first portion having an extended position, including the female valve being configured to seal the outlet portion, and a retracted position. A second portion defining an inlet and an inlet portion of the fluid pathway is lockingly engageable with the first portion. A male valve is disposed within the second portion including a male valve transition member configured to translate the male valve from an extended position to a retracted position including the male valve being configured to seal the inlet portion. The extended position of the male valve causes the female valve to transition from the extended position to the retracted position and causes the outlet portion and the inlet portion of the fluid pathway to be in fluid communication with each other.