Abiomed Europe Gmbh

Abiomed, Inc.

Ipf Pharmaceuticals Gmbh

Frank Kirchhoff

Thorsten Siess

Gerd Spanier

John Murphy

Wolf-Georg Forssmann

Christoph Nix

Caitlyn Hastie

Walid Aboulhosn

Wolfgang Kerkhoffs

Dirk Michels

Scott C Corbett

Glen Robert Fantuzzi

David A Brousseau

Patrick Hunziker

Josef Penners

Werner Carell

Zhongwei Qi

Ger O'Carrol

Ludger Staendker

Jan Muench

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

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 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.

Blood pump

A sheath for producing a fully sealed access to the interior of a vessel of an animal or human body comprises a base sheath having a tubular body defining a pass-through channel. The base sheath is adapted to be inserted into the vessel through a vessel aperture. A wall of the tubular body of the base sheath has a through channel. This channel extends in the wall from the distal end towards the proximal end. The channel can be present separately from the pass-through channel of the base sheath or can form a sideways extension of the pass-through channel, at least at the distal end. Such through channel is adapted to conduct blood from the vessel to the proximal end of the sheath when the sheath has been inserted into a vessel.

Sheath for sealed access to a vessel

A sheath assembly for the insertion of a percutaneous pump includes a tubular sheath body dimensioned for insertion into a blood vessel through a vessel aperture. The tubular sheath body includes a wall having a proximal end portion, a distal end portion, a longitudinal axis, an outer surface, an inner surface defining a first lumen substantially parallel to the longitudinal axis, and a second lumen disposed within the wall between the inner surface and the outer surface and extending from the proximal end portion to the distal end portion. The first lumen is dimensioned to allow passage of a portion of the percutaneous pump, and the second lumen is dimensioned for passage of a guidewire. A stylet is removably positioned to substantially occlude the second lumen. The stylet has a proximal end releasably secured to the sheath assembly.

Dual lumen sheath for arterial access

An apparatus is disclosed including: an intracardiac pump device having a path for a guidewire extending through the pump device from a first opening to a second opening; and a lumen which extends from a first end located outside of the pump device, into the pump device through the first opening in the pump device, along the path for the guidewire, out of the pump device through the second opening, and to a second end located outside of the pump device. The lumen is configured to receive the guidewire such that when the guidewire passes through the lumen from the first end to the second end, the guidewire is positioned along the path.

Loading guide lumen

A blood pump system including a blood pump, an intravascular flow cannula, and a pressure sensor. The intravascular flow cannula is in flow communication with the blood pump and has a distal end portion distally from the blood pump and a proximal end portion closer to the blood pump. The intravascular flow cannula has at least one blood flow through opening at its distal end portion for blood to enter or exit the flow cannula. The blood flow through opening has a borderline surrounding the through opening. The pressure sensor is configured radially within the flow cannula and borders a proximal portion of the borderline.

Blood pump system

An intravascular blood pump having a drive section (), a catheter () fastened to the drive section proximally and a pump section () fastened to the drive section distally possesses an electric motor () whose motor shaft () is mounted in the drive section () with two radial sliding bearings () and an axial sliding bearing (). During operation, purge fluid is conveyed through the bearing gap of the axial sliding bearing () and farther through the radial sliding bearing () at the distal end of the drive section (). The purge fluid is highly viscous, for example 20% glucose solution.

Intravascular blood pump

An intravascular blood pump for percutaneous insertion comprises 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 () comprises an elongate stiffening structure () extending continuously longitudinally along the length of the catheter () between the proximal end () and the distal end () of the catheter (). The stiffening structure () may comprise a shape-memory material, such as Nitinol. It may be in the form of a wire that extends loosely through the lumen of the catheter and helps to avoid or significantly reduce kinks in the catheter.

Blood pump with reinforced catheter

An intravascular blood pump having a rotatable shaft carrying an impeller and a housing with an opening through which the shaft extends with the impeller positioned outside the housing. The shaft and the housing have surfaces forming a circumferential gap which has a gap width of no more than 2 μm over at least part of the length of the gap and at least one of the surfaces forming the gap is made of a material having a thermal conductivity of at least 100 W/mK, in particular a ceramic material such as silicon carbide.

The invention relates to a micromotor (), the stator of which contains a back iron jacket (). Said back iron jacket consists of a continuous unslotted sleeve consisting of a metal alloy that contains ferritic iron as the main constituent, up to 30% chromium and preferably aluminium and yttrium oxide. Electric conductivity is reduced by the oxidation of the aluminium. The yttrium oxide performs the same function. The reduced electric conductivity suppresses eddy currents to a great extent. The back iron jacket () has a high magnetic conductivity with a small wall thickness, thus increasing the electrical output for a motor with a small diameter.

Blood pump with micromotor

A method of manufacturing a cannula () for an intravascular blood pump comprises the steps of forming a first axial section () and a second axial section () of an elongate tubular body of the cannula () by dispensing a first liquid material and a second liquid material, respectively, onto a mandrel () by means of at least one dispenser (). The mandrel () is rotated and the dispenser () moves relative to the mandrel () in an axial direction during dispensing of the liquid materials. The first and second axial sections () are formed so as to have different bending stiffnesses. The first and second liquid materials are dispensed onto the mandrel () such that the first and second liquid materials blend into each other to form a smooth transition area ().

Cannula for intravascular blood pump

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.

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Aachen, Germany

Frank Kirchhoff