Devices, systems and methods for establishing a blood flow conduit between a chamber in a heart of a patient and a remote location. A blood inflow cannula having an outer surface and proximal and distal end portions. The distal end portion is configured for insertion into the chamber of the heart. First and second anchor elements have respective maximum width dimensions extending outwardly from the outer surface of the cannula. The first anchor element is positioned more distally than the second anchor element defining a tissue receiving space therebetween. The maximum width dimension of the first anchor element may be larger than the maximum width dimension of the second anchor element in use. The first anchor element is configured to be positioned inside the heart chamber and the second anchor element is configured to be positioned outside the heart chamber with heart tissue held in the tissue receiving space therebetween.

A system and method of drawing blood from the heart of a patient. The system includes a blood pump, an outflow cannula, and a flexible cannula assembly. The flexible cannula assembly includes a cannula body, a tip, and first and second anchors. The cannula body includes a proximal end coupled to the inlet of the blood pump, a distal end including a first locking element coupled to the tip. The first anchor has a first plurality of arms and is coupled to the tip and adapted to engage the internal surface of the heart wall. The second anchor includes a second plurality of arms and a second locking element and is slidably positioned on the outer wall of the cannula body and adapted to engage the first locking element of the distal end of the cannula body to couple the second anchor to the external surface of the heart wall.

Thermal management solutions for wireless power transfer systems are provided, which may include any number of features. In one embodiment, an implantable wireless power receiver includes at least one thermal layer disposed on an interior surface of the receiver configured to conduct heat from a central portion of the receiver towards edges of the receiver. The thermal layer can comprise, for example, a copper layer or a ceramic layer embedded in an acrylic polymer matrix. In some embodiments, a plurality of thermal channels can be formed within the receiver to transport heat from central regions of the receiver towards edges of the receiver via free convection. In yet another embodiment, a fluid pipe can be connected to the receiver and be configured to carry heat from the receiver to a location remote from the receiver. Methods of use are also provided.

Devices, systems and methods for establishing a blood flow conduit between a chamber in a heart of a patient and a remote location. A blood inflow cannula having an outer surface and proximal and distal end portions. The distal end portion is configured for insertion into the chamber of the heart. First and second anchor elements have respective maximum width dimensions extending outwardly from the outer surface of the cannula. The first anchor element is positioned more distally than the second anchor element defining a tissue receiving space therebetween. The maximum width dimension of the first anchor element may be larger than the maximum width dimension of the second anchor element in use. The first anchor element is configured to be positioned inside the heart chamber and the second anchor element is configured to be positioned outside the heart chamber with heart tissue held in the tissue receiving space therebetween.

A right ventricular assist device (hereinafter, RVAD) for placement inside a mammalian subject includes a tube having an inlet configured to be positioned in the mammalian subject when the tube is in a proper position within a heart and an outlet configured to be located in a pulmonary artery when the tube is in the proper position. The RVAD also includes a plurality of sensors having measurement locations along the tube to measure a plurality of pressures of blood exterior to the tube at the measurement locations and a controller in communication with the pump and the plurality of sensors that convey the plurality of pressures to the controller with the controller being configured to instruct the pump to pump blood through the tube depending on at least one of the plurality of pressures.

A peristaltic pump for conveying fluid in an apparatus for extracorporeal blood treatment includes a pump housing that accommodates a rotor. The rotor includes squeezing elements offset against each other in the circumferential direction. The pump housing includes a support surface extending in a curved shape around the rotor's axis. The support surface is radially spaced from the rotor and arranged to support a tube segment radially inserted between the rotor and the support surface. The rotor is driven by a rotor shaft, the rotary movement of which can be transmitted to a rotor base body via a freewheel press-fitted into a toothed driver sleeve. The freewheel has bearing positions for the rotor base body on both sides of the freewheel. To ensure coaxiality between the freewheel and the bearing support of the rotor base body, the bearing positions are defined by the geometry of the finished driver sleeve.

Systems and methods are described for modulating blood flow through a blood vessel. The systems may include one or more implantable devices including a stent frame positionable within the blood vessel, the stent frame having a substantially oval cross-sectional shape, and a valve defining an inflow end and an outflow end. The inflow end may be coupled to the stent frame and the outflow end defining an aperture and the valve may include at least one leaflet at the outflow end. The at least one leaflet may be positionable to overlay at least a portion of the aperture and configured to move in a radial direction that is perpendicular to a central axis of the stent frame.

Embodiments herein provide a Pulmonary Circulation Assist Implant for passively regulating the cardiovascular blood flow in a subject born with a univentricular heart. The Pulmonary Circulation Assist Implant is configured to avoid a head-on collision between the bloodstreams from a Superior Vena Cava (SVC) and an Inferior Vena Cava (IVC) without an offset between them. Further, the Pulmonary Circulation Assist Implant is configured to smoothly distribute the SVC blood and IVC hepatic blood to both lungs in equal proportions without swirling. Also, the Pulmonary Circulation Assist Implant is configured to avoid the occurrence of retrograde flow and reduce power loss.

The present invention describes a system that uses ultrasonic waves to transfer energy and data, enabling for the control and recharging of a cardiac assist device. Data and energy transfer are accomplished using pulsed ultrasonic waves. The use of ultrasonic waves allows for wireless transcutaneous energy transfer to power the cardiac assist device pump in absence of a driveline, reducing complications associated with driveline infections and improving patient quality of life.

The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.