A method of initiating operation of an external unit for a medical system further comprising an internal unit implanted into a body of a patient; a transformer core arranged under the skin of the patient; and internal cabling connecting the internal unit and the transformer core, the internal cabling comprising an internal winding around the transformer core, wherein the external unit comprises external cabling including an external winding around the transformer core to allow supply of power from the external unit to the internal unit via the transformer core, the method comprising the steps of: evaluating, by the external unit, a signal indicative of a magnetic flux in the transformer core; when the signal indicates that the magnetic flux in the transformer core is below a predefined threshold flux, providing power to the internal unit by the external unit via the transformer core.

A medical device and a method of operating a medical device, wherein the device includes a medical function assembly, a control assembly, a user interface, and a user information element, configured to display information about a type of the medical device, wherein the control assembly includes a memory element in which different operating parameters for the medical function assembly are storable and wherein the control assembly is configured to control the medical function assembly to perform different medical functions as a function of operating parameters stored in the memory element, wherein the control assembly is further configured to control the user information element to display information about the operating parameters stored in the memory element. The medical device wherein the user information element is configured to continue to reproduce the information after being controlled once by the control assembly, independent of continued control by the control assembly.

A medical device and a method of operating a medical device, wherein the device includes a medical function assembly, a control assembly, a user interface, and a user information element, configured to display information about a type of the medical device, wherein the control assembly includes a memory element in which different operating parameters for the medical function assembly are storable and wherein the control assembly is configured to control the medical function assembly to perform different medical functions as a function of operating parameters stored in the memory element, wherein the control assembly is further configured to control the user information element to display information about the operating parameters stored in the memory element. The medical device wherein the user information element is configured to continue to reproduce the information after being controlled once by the control assembly, independent of continued control by the control assembly.

A medical system comprising an internal unit; a transformer core; internal cabling comprising an internal winding around the transformer core; and an external unit comprising power supply circuitry and external cabling coupled to the power supply circuitry for enabling supply of power from the power supply circuitry to the internal unit via the transformer core. The external cabling comprises a connector including a first connector part and a second connector part; a first conductive current path between the power supply circuitry and the first connector part; a second conductive current path between the power supply circuitry and the second connector part; and a third conductive current path between the first connector part and the second connector part, conductively connecting the first connector part and the second connector part.

Introduced here are systems for facilitating wireless power transfer to devices that are implanted in living bodies. The wireless power systems described herein utilize inductive coupling between a pair of resonators—namely, a first resonator located external to a living body and a second resonator located internal to the living body—for efficient wireless power transmission. Each resonator can include a conductive loop with at least one interruption in which discrete capacitors are situated. Moreover, each resonator may include a magnetic core that shapes the magnetic field created by the corresponding conductive loop.

Introduced here are systems for facilitating wireless power transfer to devices that are implanted in living bodies. The wireless power systems described herein utilize inductive coupling between a pair of resonators—namely, a first resonator located external to a living body and a second resonator located internal to the living body—for efficient wireless power transmission. Each resonator can include a conductive loop with at least one interruption in which discrete capacitors are situated. Moreover, each resonator may include a magnetic core that shapes the magnetic field created by the corresponding conductive loop.

Systems, devices and methods are provided for supporting cardiac function. One system comprises an implantable intracardiac device comprising a motor and a pump, a transmitting resonator comprising a magnetic coil and configured to transmit a first level of power through an outer skin surface of the patient and a receiving resonator configured for implantation within the patient, comprising a magnetic coil and configured to transmit a second level of power to the motor within the implanted device. A controller is coupled to the transmitting resonator and configured to control the resonators and other parameters in the system such that the second level of power remains at or above a threshold level, thereby ensuring that the pump will continuously pump blood through the heart at a sufficient rate regardless of any changes in the system, such as power loss due to transmission inefficiencies and/or changes in the relative positions between the transmitting and receiving coils.

A minimally invasive circulatory support platform that utilizes an aortic stent pump or pumps. The platform uses a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the patient. Also described is a catheter-based temporary assist pump to treat patients with acute decompensated heart failure and provide circulatory support to subjects undergoing high risk percutaneous coronary intervention (“PCI”). Further described is a wirelessly powered circulatory assist pump for providing chronic circulatory support for heart failure patients. The platform and system are relatively easy to place, have higher flow rates than existing systems, and provide improvements in the patient's renal function.

A minimally invasive circulatory support platform that utilizes an aortic stent pump or pumps. The platform uses a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the patient. Also described is a catheter-based temporary assist pump to treat patients with acute decompensated heart failure and provide circulatory support to subjects undergoing high risk percutaneous coronary intervention (“PCI”). Further described is a wirelessly powered circulatory assist pump for providing chronic circulatory support for heart failure patients. The platform and system are relatively easy to place, have higher flow rates than existing systems, and provide improvements in the patient's renal function.

A minimally invasive circulatory support platform that utilizes an aortic stent pump or pumps. The platform uses a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the patient. Further described is a wirelessly powered circulatory assist pump for providing chronic circulatory support for heart failure patients. The platform and system are relatively easy to place, have higher flow rates than existing systems, and provide improvements in the patient’s renal function.