According to some embodiments, systems and methods are provided for non-invasively detecting the force generated by a non-invasively adjustable implantable medical device and/or a change in dimension of a non-invasively adjustable implantable medical device. Some of the systems include a non-invasively adjustable implant, which includes a driven magnet, and an external adjustment device, which includes one or more driving magnets and one or more Hall effect sensors. The Hall effect sensors of the external adjustment device are configured to detect changes in the magnetic field between the driven magnet of the non-invasively adjustable implant and the driving magnet(s) of the external adjustment device. Changes in the magnetic fields may be used to calculate the force generated by and/or a change in dimension of the non-invasively adjustable implantable medical device.

Markers and related systems and methods are provided for localizing lesions within a patient's body, e.g., within a breast. The marker includes one or more photosensitive diodes for transforming light pulses striking the marker into electrical energy, one or more antennas, and a switch coupled to the photodiodes and antennas such that the light pulses cause the switch to open and close and modulate radar signals reflected by the marker back to a source of the signals. The antenna(s) may include one or more wire elements extending from a housing, one or more antenna elements printed on a substrate, or one or more chip antennas. Optionally, the marker may include a processor coupled to the photodiodes for identifying signals in the light pulses or one or more coatings or filters to allow selective activation of the marker.

A drive assembly for use with a delivery catheter for delivering an implantable medical device includes a drive motor configured to be operably coupled to an inner shaft of the delivery catheter such that operation of the drive motor causes the inner shaft to translate relative to the outer shaft and a controller. The controller is configured to receive a position signal from a position sensor indicating a position of the implantable medical device relative to the outer shaft as well as a motor signal indicating a rotational position of an output shaft of the drive motor. The controller is configured to output a control signal instructing operation of the drive motor based upon the indicated rotational position of the output shaft of the drive motor and the indicated position of the implantable medical device relative to the outer shaft.

In certain embodiments, a method for communicating with a fetus may include providing, on an electronic device, a user interface configured to facilitate wireless communication of signals between the electronic device and at least one implanted device located in proximity to the fetus; and responsive to a user selecting a communication selection element, causing the wireless communication of signals inclusive of content data between the electronic device and implanted device.

A surgical system may include a conductive stylet with a distal end advanceable into bone material and a proximal end coupled to a stylet hub. A handle is non-removably attached to the stylet hub, and removably attachable to an insulative cannula hub. The cannula hub is non-removably attached to a conductive cannula that surrounds the stylet when the handle is attached to the proximal end of the insulative cannula hub. An outer insulative sheath is slideably engaged to insulative cannula hub, and has a radiopaque distal tip. An electrical signal source may be applied to the stylet hub to conduct a pedicle integrity assessment. The handle and stylet may be removed from the cannula assembly, leaving the cannula assembly in place at the surgical site.

A distraction system includes a distraction rod having one end configured for affixation to at a first location on patient. The system further includes an adjustable portion configured for placement in the patient at a second location, the adjustable portion comprising a housing containing a magnetic assembly comprising a magnet, the magnetic assembly secured to a threaded element that interfaces with an opposing end of the distraction rod. The system includes a magnetically permeable member in proximity to the magnetic assembly and covering an arc of less that 360° of the adjustable portion.

Markers, probes, and related systems and methods are provided for localizing locations within a patient's body, e.g., a lesion within a breast. The marker includes an energy converter e.g., one or more photodiodes, for transforming light energy striking the marker into electrical energy, a storage device coupled to the energy converter for storing the electrical energy, a threshold element that closes a switch when the electrical energy reaches a predetermined threshold to discharge the electrical energy and cause the antenna to transmit a radio frequency (RF) signal. The system includes a probe that transmits light into the patient's body and a processor that correlate the frequency of the RF signals to a distance from the probe to the marker.

Disclosed herein are left atrial appendage (LAA) occluders that include self-powered physiological sensors to monitor physiological parameters of a subject. The sensors can be powered by harvesting energy generated by the patient's body or using wireless power delivery technologies. The disclosed devices can be used to close the LAA and to provide self-powering sensors to wirelessly monitor physiological parameters such as heart rate, pressure, temperature, size of the atrium, and levels of biomarkers such as C-reactive protein (CRP) and B-type natriuretic peptide (BNP) (e.g., using biosensors). In addition to addressing the stroke risk for patients with non-valvular atrial fibrillation, the disclosed devices offer post-surgical connected care that can reduce hospital readmissions, provide superior medical management, and improve patient quality of life.

Devices, systems and methods for controlling motion of magnetic-driven nanobots are provided. Based on a selection indicative of a pattern of movement of the nanobots (200), a signal can be generated indicative of a pattern of magnetic field to be produced. Electrical signals can be generated to cause production of the pattern of magnetic field. The electrical signals can be provided to a device (300, 800) which is adaptable for being placed on the head or around a tooth of the patient. A first coil (502, 602, 804) of the device can receive the electrical signals and produce the pattern of the magnetic field to drive the magnetically-driven nanobots from a pulp region of the tooth into the dentinal tubules.

A method and a device for bone adjustment in a mammal is presented, wherein a device is implanted in the medullar cavity of a bone in the body of said mammal, said device being a device exerting a force to anchoring devices anchored in said bone. The method and device has utility in therapeutic and cosmetic bone adjustments, including the lengthening, reshaping and realigning of bones, for example in the correction of congenital deformations, restorative orthopaedic surgery and the like.