Abiomed Europe Gmbh

Abiomed, Inc.

Ecp Entwicklungsgesellschaft Mbh

Impella Cardiosystems Ag

Impella Cardiotechnik Aktiengesellschaft

Guidant Corporation

Impella Cardiotechnik Gmbh

Other

Medos Medizintechnik Gmbh

Impella Cardiosystems Gmbh

Impella Cardiotechnick Gmbh

Thorsten Siess

Gerd Spanier

Walid Aboulhosn

Frank Kirchhoff

Christoph Nix

Caitlyn Hastie

Paul A Spence

Eric Gratz

Wolfgang Kerkhoffs

Robert T V Kung

Rob Dowling

Katrin Lunze

Glen Robert Fantuzzi

Helmut Reul

Peter Skrodsky

Michael Thomas Finnegan

Ralph Louis D'Ambrosio

Ellen Keysselitz

Bruce Adams

Joerg Schumacher

Mario Scheckel

John Murphy

Scott C Corbett

Claudia Mourran

Adrian Moran

Peter S Brown

Robert Decke

Jörg Schumacher

Ger O'Carrol

Dirk Michels

David A Brousseau

Walid Aboul-Hosn

Guenter Rau

Maxim Daschewski

Jimpo Wang

Jens Hutzenlaub

Martin Kortyka

Jim-Po Wang

Werner Carell

Robert Dowling

Josef Penners

Christof Malzkorn

Christian Moser

Patrick Hunziker

Robert Tv Kung

Bob Kung

Paul Spence

Gunter Rau

Zhongwei Qi

Michael Kast

Wolfram Voelker

Marius Grauwinkel

Tino Andreas Boelke

Gunther Rau

Rolf Sammler

Stefan Bönsch

Willem Flameng

Gerhard Doepper

Stefan Boensch

Gebhard Doepper

Bart Meyns

Max Eisen

Rainer Damen

Hastie Caitlyn

Cristine Rodrigues-Brimmers

David Brousseau

Rotor for a medical device

An intravascular blood pump may have a catheter () and a pumping device () attached to the catheter (). The catheter () extends along a longitudinal axis and has a distal end () and a proximal end () opposite the distal end (). The catheter () may have a tubular stiffening structure () extending longitudinally between the proximal end () and the distal end () of the catheter (). The tubular stiffening structure () has a lumen () and a proximal end () and a closed distal end () opposite the proximal end (), wherein the lumen () of the stiffening structure () is configured to receive a pressurized fluid having an over-pressure of at least 5 bar.

Blood pump with reinforced catheter

The application relates to a pump, in particular blood pump. The pump comprises a drive shaft () which runs in an axial direction, a delivery element () which is connected to the drive shaft () in a distal region of this, and a housing () which surrounds the delivery element (). The delivery element () and the housing () are designed in a manner such that these automatically unfold after a forced compression. The housing () moreover comprises an inlet region () with at least one inlet opening (), a fluid-tight region () which surrounds a region of the delivery element (), and an outlet region () with at least one opening () for the exit of the pump medium. The delivery element () is arranged in a manner such that it projects into the outlet region ().

Pump, in particular a blood pump

An intravascular blood pump includes a pump housing having an input port and an output port. A relatively short intake cannula may draw blood in through an intake port and deliver the blood to the input port of the pump housing. The intake cannula is relatively short, to prevent excess hydraulic loss. An outflow hose is connected to the output port of the pump housing, so as to convey blood exiting the output port through the outflow hose in a downstream direction to a discharge port, e.g. into an aorta or other blood vessel. Despite the short intake cannula, the outflow hose longitudinally separates the intake port from the discharge port sufficiently so the intake port and the discharge port remain on opposite sides of a heart valve, despite inadvertent longitudinal shifts of the intravascular heart pump.

Intravascular blood pump with outflow hose

A control device () for controlling the rotational speed (n(t)) of a non-pulsatile ventricular assist device, VAD, () uses an event-based within-a-beat control strategy, wherein the control device is configured to alter the rotational speed of the VAD within the cardiac cycle of the assisted heart and to synchronize the alteration of the rotational speed with the heartbeat by at least one sequence of trigger signals (σ(t)) that is related to at least one predetermined characteristic event in the cardiac cycle. Further, a VAD () for assistance of a heart comprises the control device () for controlling the VAD, wherein the VAD is preferably a non-pulsatile rotational, for example catheter-based, blood pump.

Ventricular assist device

An intravascular blood pump () comprises a ring seal () that is configured to assume a collapsed configuration and an expanded configuration and configured to contact and seal against an inner wall of the patient's blood vessel when inserted therein in the expanded configuration. A support member () is disposed inside the ring seal () in order to support the ring seal () from the inside, wherein the support member () is configured to collapse at least partially when a predetermined pressure difference between a proximal area and a distal area of the blood vessel acting on the ring seal () is exceeded.

Intravascular blood pump with balloon

A method and an apparatus for use in estimating blood flow in an intravascular blood pump comprise retrieving reference data from a set of reference data obtained in a test environment. The set of reference data comprises, for at least one motor speed at different pump loads, including a first pump load, both a reference motor current (I) of a motor driving the blood pump and an amount of fluid flow through the blood pump. After placement of the blood pump in the patient, a patient-specific motor current for said motor speed at said first pump load is measured, and a motor current deviation value (ΔI) is calculated from the reference motor current (I) at said first pump load and patient-specific motor current. Finally, the motor current deviation value ΔI is used for estimating a patient-specific blood flow amount through the blood pump.

Method and apparatus for calibration and use in estimating blood flow in an intravascular blood pump

An intravascular blood pump comprises a pumping device including an impeller and an electric motor for driving the impeller. A rotor of the electric motor is rotatable about an axis of rotation and coupled to the impeller so as to be able to cause rotation of the impeller. An outer sleeve forms a casing of the pumping device, wherein stator components are fixed inside the outer sleeve by means of a casting compound. In a method of manufacturing the blood pump the stator components are placed on a molding base, including the outer sleeve to thereby form an interspace between the molding base and the outer sleeve in which the stator components are disposed. The casting compound is then injected into the interspace via the molding base to fix the stator components inside the outer sleeve. The outer sleeve preferably comprises a magnetically conductive material to form a yoke of the electric motor.

Method of manufacturing a blood pump

A blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing so as to be rotatable about an axis of rotation. The impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump also has an outflow cannula having an upstream end portion, a downstream end portion and an intermediate portion extending between the upstream end portion and the downstream end portion. The upstream end portion of the outflow cannula is connected to the pump casing such that blood is conveyed from the blood flow outlet of the pump casing into and through the intermediate portion of the outflow cannula towards the downstream end portion of the outflow cannula, wherein the downstream end portion has a blood flow outlet through which blood can exit the outflow cannula. At least a portion of the intermediate portion of the outflow cannula has an outer diameter that is larger than an outer diameter of the pump casing.

Blood pump

A blood pump for supporting a patient's heart includes a flow cannula having a distal portion including a distal end and a proximal portion including a proximal end opposite the distal end, the distal end of the flow cannula configured to be connected to the patient's heart or a blood vessel to establish fluid communication between the blood pump and the patient's heart and blood vessel, respectively. The flow cannula further includes an intermediate portion attached to the distal portion and the proximal portion, wherein the intermediate portion allows twisting thereof with a lower force than the distal portion and the proximal portion. The intermediate portion can be fully occluded by twisting it. At least a portion of the intermediate portion either alone or in combination with the distal portion is adapted to be permanently attached to the patient's heart or a blood vessel.

Blood pump with flow cannula

Aspects of the present technology relate to compressible and expandable pumps. In one aspect, a pump is provided including a pump housing that is expandable and compressible and a rotor that is expandable and compressible and disposed in the pump housing. The rotor includes at least one rotor blade, a hub, and an axis of rotation. At least a portion of the at least one rotor blade extends from the hub along a first axis that is offset a predetermined distance from a radial axis of the rotor that traverses the axis of rotation. The pump further includes a drive shaft having a proximal end and a distal end, wherein the hub of the rotor is mounted to the distal end of the drive shaft and the drive shaft is rotated to rotate the rotor.

Pump including a compressible rotor having offset rotor blades

The application relates to an external drive unit () for an implantable heart assist pump. The proposed drive unit () comprises a motor () for driving the heart assist pump, wherein the motor () is connectable to the heart assist pump via a transcutaneous drive shaft (). The drive unit () further comprises a heat spreader () comprising a contact surface configured to contact and/or directly contact and/or lie flat against a skin of a patient. The contact surface is connected or connectable with the motor () in a thermally-conductive manner to transfer heat generated by the motor () to tissue of the patient.

External drive unit for an implantable heart assist pump

A blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing and rotatably supported in the pump casing by a bearing so as to be rotatable about an axis of rotation. The impeller has blades for conveying blood from the blood flow inlet to the blood flow outlet. The bearing comprises at least one stationary bearing portion coupled to the pump casing and having a stationary bearing surface that faces radially outwards. The bearing further comprises a rotating bearing surface interacting with the stationary bearing surface to form the bearing, wherein the rotating bearing surface faces radially inwards and is formed on an exposed radially inner edge of the blades. The blades are designed to draw blood deposit on the stationary bearing surface in a radially outward direction.

An introducer sheath for providing access in a patient's body comprises a tubular body with a distal portion and a proximal portion, the proximal portion being configured to be inserted into the patient's body to allow a medical device to be inserted through the introducer sheath into the patient's body. In order for the introducer sheath to be removable from the patient, it can be separated along its length in a longitudinal direction. The introducer sheath further comprises at least a first handle which is pivotable about a fulcrum. The first handle has a first end portion and a free second end portion so as to form a lever, such that pivoting the handle about the fulcrum causes a contacting portion of the handle to act on a respective counter portion that is operatively connected to the distal portion of the tubular body. This creates a breaking force that causes the distal portion of the tubular body to break.

Introducer sheath

A blood pump comprises a pump section and a flow cannula. A proximal end portion of the flow cannula is connected to the pump section such that blood can enter the blood flow inlet, and a distal end portion of the flow cannula includes at least one blood flow-through opening for blood to enter the flow cannula. The distal end portion comprises an enlarged diameter portion, with at least a major portion of the blood flow-through opening being disposed in the enlarged diameter portion. The blood pump further comprises a sleeve overlapping the enlarged diameter portion. The sleeve has a structure that prevents its distal end from bending radially inwards into the blood flow-through openings.

Growing community of inventors

Wuerselen, Germany

Thorsten Siess