A system and a method for starting a rotor of an implantable blood pump are described. For example, a blood pump system includes a rotary motor having a stator and a rotor. The rotor has permanent magnetic poles for magnetic levitation of the rotor, and the stator has a plurality of pole pieces arranged circumferentially at intervals. The blood pump system includes a controller configured to control a start phase of the rotor, wherein the start phase is prior to the rotor being positioned in a predefined geometric volume for pumping blood and wherein the start phase includes performing a rotation of the rotor by an angle larger than an angle corresponding to a quarter of an angular distance between two neighboring magnetic poles of the rotor.

A by-pass shunt for use with a bodily fluid pump. The by-pass shunt includes an inflow conduit, an outflow conduit, and an intermediate conduit fluidically coupling the inflow and outflow conduits. A flow restrictor is operably coupled to a portion of the intermediate conduit and is configured to reduce a fluid flow from the outflow conduit, through the intermediate conduit, and into the inflow conduit.

A medical device includes an artificial contractile structure which may be advantageously used to assist the functioning of a hollow organ, an artificial contractile structure including at least one contractile element (100) adapted to contract an organ, in such way that the contractile element (100) is in a resting or in an activated position, at least one actuator designed to activate the contractile structure, and at least one source of energy for powering the actuator. The ratio “current which is needed to maintain the contractile element in its activated position and in its resting position/current which is needed to change the position of the contractile element” is less than 1/500, preferably less than 1/800, and more preferably less than 1/1000. The medical device further includes elements for reducing corrosion of the medical device.

A connection system implantable within a living body having an exterior skin includes a male connector and a female connector. The male connector includes a shaft extending along an axis between a proximal end and a distal end, the shaft having an exterior surface surrounding the axis, at least one shaft contact carried on the shaft and exposed at the exterior surface, and a retaining element mounted to the shaft. The female connector includes a structure defining a bore extending along an axis between a proximal end and a distal end, at least one bore contact mounted to the structure and exposed within the bore and a catch element mounted to the structure. The catch and retaining elements allow the shaft to be inserted into the bore to align the contacts. A locking element rotatably locks the shaft in the bore. A method of implanting the system is also provided.

An implantable connector utilizing having improved electrical and mechanical properties is described herein. In one aspect, the implantable connector utilizes electrical contact pins fabricated from a corrosion resistant metal alloy, such as platinum-iridium, that engage longitudinally and include one or more urging members on a proximal portion of the pin so as to provide at least a desired contact force between conductively coupled pins. Such a configuration allows contact between contact pins to be maintained in applications where the connector may be subject to movement and further allows for reduced resistance so as to allow transmission of voltages and current associated with higher powered implanted devices. In some embodiments, the urging member is defined as a helical cut potion in one or both electrical contacts. Methods of use and manufacture of such connectors are also provided herein.

Embodiments provide a water-resistant VAD bag including an upper unit having the shape of a cylinder, a lower unit having the shape of a cylinder, a controller sleeve, a battery sleeve, two inserted sleeves positioned in between the controller sleeve and the battery sleeve, an inner sleeve, and an inner layer. The upper unit includes a first elongated strap with a clip and second elongated strap without a clip, a cover on top of the upper unit with a handle sewn into the cover, and a zipper around a bottom of the cover. The lower unit includes a connecting strap and a third elongated strap with a receptacle for the clip on the first elongated strap from the upper unit, where the zipper is on the top of the lower unit, and where the connecting strap and second elongated strap are sewn into the lower unit and the upper unit.

Mechanical circulatory supports configured to operate in series with the native heart are disclosed. In an embodiment, an intravascular propeller is installed into the descending aorta and anchored within via an expandable anchoring mechanism. The propeller and anchoring mechanism may be foldable so as to be percutaneously deliverable to the aorta. The propeller may have foldable blades. The blades may be magnetic and may be driven by a concentric electromagnetic stator circumferentially outside the magnetic blades. The stator may be intravascular or may be configured to be installed around the outer circumference of the blood vessel. The support may create a pressure rise between about 20-50 mmHg, and maintain a flow rate of about 5 L/min. The support may have one or more pairs of contra-rotating propellers to modulate the tangential velocity of the blood flow. The support may have static pre-swirlers and or de-swirlers. The support may be optimized to replicate naturally occurring vortex formation within the descending aorta.

A percutaneous connector assembly including a feedthrough assembly having a body and a plurality of electrically conductive feedthroughs extending through the body from a first end toward a second end thereof. A cable assembly having a plurality of conductors arranged side-by-side within a first plane to form a substantially flat portion thereof is included, each conductor being connected to a corresponding feedthrough of the feedthrough assembly and the flat portion extending from the body.

This device is an inserting member fixing device to fix a linear inserting member to an insertion target, the inserting member fixing device comprising: a main body; a chuck portion; an inner sealing portion to be brought into close contact with an outer periphery of the inserting member; an inserting member supporting portion to support the inserting member; and a movement restricting portion to restrict movement of the inner sealing portion and the inserting member supporting portion. The inserting member supporting portion and the inner sealing portion are provided adjacent to each other in an axial direction of the inserting member, and a space is provided between the inserting member supporting portion and the inner sealing portion so that a main body-side end portion of the inserting member supporting portion is displaceable when the inserting member swings.

The invention relates to a system (100) and a method (500) for controlling a cardiac support system (10), comprising a first extracorporeal control device (110), wherein the first control device (110) is or can be connected to the cardiac support system (10) with a wire or a first coil (150) for communication and/or energy transfer, and comprising a second extracorporeal control device (120) which is wirelessly connected to the first control device (110). The invention also relates to a cardiac support system (10) having a control system according to the invention (100).