A medical device such as a catheter includes a shaft that extends from a proximal region to a distal region and that defines a shaft lumen extending therethrough. A hub is secured relative to the proximal region. A strain relief extends proximally over the shaft from the hub. At least one of the hub and the strain relief include a printed battery.

Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.

Implantable ports used for intravenous administration and methods of using the same.

A hybrid powering system for an implanted medical device combines wireless power transfer with transcutaneous wired power transfer and/or control. A ventricular assist device (VAD) can include an implantable controller with a rechargeable battery, and an implantable power receiver antenna for receiving wireless power from a transmitter located outside of the patient's body. The power receiver charges the battery and allows the controller to drive the VAD. The system also includes the ability to connect a hardwired connection via a connector device configured to be implanted percutaneously. The connector device provides a socket for an external power source or an external controller to plug directly into the system, providing hardwired power and/or control to the implanted VAD. When an external controller is connected it causes the implanted controller to stop driving the VAD, in order to avoid short circuiting the VAD. The percutaneous connector device can be used as a backup power source in case the wireless connection fails, or it can be used discretionally, such as for overnight charging.

Disclosed catheter insertion systems enable the user to identify the location of the needle based on the electrical properties of subcutaneous tissue relative the electrical properties of other fluids such as blood or air. Disclosed systems can include one or more of the following features: 1) the catheter assembly is modular (e.g., the catheter can be connected and disconnected from the detection unit at will); 2) the detection unit employs an electrical circuit that allows for the discernment between subcutaneous tissue and blood; 3) the system assists the end user with catheter advancement. Some embodiments can be used to insert catheters into a spaces where the needle passes first through subcutaneous fat and muscle before entering fluid or air.

A system to be implanted in a living body for supplying medical substance, such as insulin. The system has a first module (1) having an inlet port (5) for receiving a transcutaneous injection of the medical substance, a second module (2) having a reservoir for storing the medical substance; a first tube (3) allowing the medical substance to flow between the first module and the second module; and a catheter (4) for releasing the stored medical substance into the living body. The first tube (3) allows the first module and second module to be implanted at different locations in the living body.

A method of estimating power dissipated by a foreign metallic object in a transcutaneous energy transfer system (TETS) includes estimating power loss between an external coil of the TETS and an implanted coil of the TETS using a transfer function, the transfer function including inputs, the inputs including: a power supplied to the external coil, a power received by the implanted coil, a measured current within the external coil, and a carrier frequency between the external coil and the implanted coil and generating an alert if the estimated power loss between the external coil and the implanted coil exceeds a predetermined threshold.

The present invention teaches a method and apparatus for physiological modulation, including neural, gastrointestinal, renal, respiratory, and other modulation, for the purposes of treating several disorders, including obesity, depression, epilepsy, diabetes, hypertension, asthma, and other disorders. This includes implanted, percutaneous, hybrid implanted and nonimplanted, nonimplanted, noninvasive neural and neuromuscular modulators, used to deliver autonomic vector modulation to deliver optimal therapy via coordinated multi-nodal modulation at least one of the afferent and efferent neurons of the sympathetic and parasympathetic nervous systems and other nervous system pathways.

Provided is a wearable, self-contained drug infusion or medical device capable of communicating with a host controller or other external devices via a personal area network (PAN). The medical device utilizes a PAN transceiver for communication with other devices in contact with a user's body, such as a physiological sensor or host controller, by propagating a current across the user's body via capacitive coupling. The wearable nature of the medical device and the low power requirements of the PAN communication system enable the medical device to utilize alternative energy harvesting techniques for powering the device. The medical device preferably utilizes thermal, kinetic and other energy harvesting techniques for capturing energy from the user and the environment during normal use of the medical device. A system power distribution unit is provided for managing the harvested energy and selectively supplying power to the medical device during system operation.

An operable implant adapted to be implanted in the body of a patient. The operable implant comprising an operation device and a body engaging portion, the operation device comprises an electrical motor comprising a static part comprising a plurality of coils and a movable part comprising a plurality of magnets, such that sequential energizing of said coils magnetically propels the magnets and thus propels the movable part. The operation device further comprises an enclosure adapted to hermetically enclose the coils of the static part, such that a seal is created between the static part and the propelled moving part with the included magnets, such that the coils of the static part are sealed from the bodily fluids, when implanted.