1292 results about "Implanted device" patented technology

Systems, devices, and methods for neurostimulation using a combination of implantable and external devices to treat pain are disclosed.

Implantable devices for fixation of curved bone such as the pelvic ring pubic symphysis and acetabulum, and methods for the use of the devices are disclosed. The implantable devices are convertible between a flexible state and a rigid state, and include an elongate structure having a proximal bone interface, a main body, and a distal bone interface. In a flexible state, the devices may be inserted along, and conform to a curved pathway, and in the rigid state, the devices may support the mechanical loads required to fixate a fracture.

The present invention provides a prosthetic heart valve device with improved fit and / or apposition between the device frame and left atrial tissue and / or the device base and the annular tissue of the left atrium to improve shifting of the implanted device and / or mitigate paravalvular leakage. The improved fit and / or apposition arises in various embodiments by providing or allowing an asymmetrical frame and / or frame base and / or providing a lower lip to aid in conforming to the asymmetrical shape of the atrium and / or ensure firm positioning therein. An additional benefit of these arrangement(s) is mitigation of paravalvular leakage as a result of improved fit and seal. In certain embodiments, the asymmetry of the frame assists with delivery of the device into the atrium.

An implantable device or implant is configured to be positioned within a native heart valve to allow the native heart valve to form a more effective seal. The implantable device can be removed using one or more of a cutting device, a capture device, and a stabilization component. The stabilization component can control the position of the implantable device while the cutting device resects one or more of the leaflets to which the implantable device is engaged.

Systems and methods for predicting and managing seizures in an individual are disclosed. In one aspect, a method for predicting and managing seizures in an individual. In another aspect, a system comprising an implanted device configured to capture at least one measurement of an impedance of brain tissue of an individual and a computing device configured to. in response to a prediction that the individual is likely to experience a seizure, initiate a remedial action that comprises at least one of alerting the individual or another user that the individual is likely to experience the seizure, applying an electrical stimulus to the brain tissue of the individual to reduce a likelihood of the seizure occurring or to reduce a severity of the seizure, or delivering a drug to the brain tissue of the individual to reduce a likelihood of the seizure occurring or to reduce a severity of the seizure.

An implantable device or implant is configured to be positioned within a native heart valve to allow the native heart valve to form a more effective seal. The implantable device or implant can expand and contract. For example, the implantable device or implant can narrow during delivery and expand on implantation on the native heart valve.

Embodiments of the invention provide compositions useful in implantable devices such as analyte sensors as well as methods for making and using such compositions and devices. In typical embodiments of the invention, the device is a glucose sensor comprising a polymeric composition disposed on a flexible assembly within the sensor that includes amounts of one or more immunosuppressant agents designed to provide such sensors with improved material properties such as enhanced biocompatibility.

An implantable device can include a radially expandable frame configured to move between a radially compressed state and a radially expanded state. The frame including a plurality of struts, at least one actuator mechanism configured to compress and expand the frame, and at least one locking mechanism coupled to the actuator mechanism. A first strut and a second strut can be pivotably coupled to one another at a common junction and configured to move toward one another as the frame is compressed and away from one another as the frame is expanded. The first and second struts can have first and second locking features that extend from respective longitudinal side edges of the struts. The locking mechanism can include a locking member configured to extend between and engage the first and second locking features when the frame is expanded to retain the frame in the radially expanded state.

Implantable devices for dynamic interconnection between bones, and especially between vertebrae. The devices provide for various types of manipulation of a flexible connection such as a tether, such as by providing an aperture through which the flexible connection is passed and guided, or a post to which a loop of the flexible connection can be attached, or a groove in which a loop of the flexible connection can be placed.

An implantable device or implant is configured to be positioned within a native heart valve to allow the native heart valve to form a more effective seal. The device can be deployed from a delivery system including one or more lines which can be decoupled from the device by energizing. The device can include contoured clasps which approximate the shape of the native valve when the clasps are in the closed position. The device can include a coaptation element with body portion including a plurality of struts and openings defining a lattice structure. One or more surfaces of one or more components of the device can be coated to improve the visibility of the device during deployment and implantation.

An extravascular nerve cuff that is configured to hold a leadless, integral, implantable microstimulator. The nerve cuff may include a cuff body having a pocket or pouch for removably receiving the implantable device within. The nerve cuff can be secured around the nerve such that the electrodes of the device are stably positioned relative to the nerve. Furthermore, the nerve cuff drives the majority of the current from the stimulation device into the nerve, while shielding surrounding tissues from unwanted stimulation.

Delivery systems for placing an implantable cardiac device at a native comprising a delivery catheter and an attachment assembly. The delivery catheter can include a proximal portion and a distal portion, and the attachment assembly can be at the distal portion of the delivery catheter. The attachment assembly can include arm pairs in which individual arm pairs include a first arm with connector and a second arm with a retainer. Each first arm extends along a corresponding second arm, and the first arm and / or the second arm in each arm pair moves relative to the other from a locked position to a released position. In the locked position, the retainer interfaces with the connector to maintain engagement between the implantable device and the connector. In the released position, the retainer is positioned relative to the connector such that the implantable device can disengage the connector.

Described herein are systems, devices, and methods for delivering enhanced stimulation to provide therapy for a patient. A neurostimulation system may include an implantable stimulation device, a base station, and an external device. The external device may include a first antenna for communicating with the implantable device, and a second antenna for receiving power from the base station. Additionally, the external device may have one or more shielding layers between the first and second antennae. A method for reprogramming a neurostimulation system may include receiving data at a base station via a remote connection, transferring the data from the base station to an external device via a location connection, and instructing an implantable stimulation device to stimulation tissue of a patient using the data.

A system includes a wearable device and an implantable device. The wearable device includes one or more signal transmitters and is configured to be positioned adjacent to or in contact with a human or animal body. The implantable device includes a signal receiver and is configured to be implanted onto or within the human or animal body. The one or more signal transmitters of the wearable device are configured to transmit the signals through the human or animal body to the signal receiver of the implanted device via a galvanic coupling operable using electro-quasistatic signal transmission. The system also includes a capacitive element positioned on an electrical current flow path of the galvanic coupling between at least one of the one or more signal transmitters and the signal receiver.

Disclosed herein are devices for mechanically removing clot and / or other material from implants implanted in the vasculature of a patient, and associated systems and methods. In some embodiments, a system for removing clot material from an implant—such as a stent—includes a clot treatment device configured to be deployed within the stent, a handle, and a first elongate member and a second elongate member coupling the clot treatment device to the handle. The first elongate member couples a first end portion of the clot treatment device to the handle, and the second elongate member couples a second end portion of the clot treatment device to an actuator of the handle. Actuation of the actuator is configured to move the second elongate member relative to the first elongate member to move the first and second end portions toward one another to radially expand the clot treatment device.

An implantable device to be positioned within a heart valve, using a delivery system comprising catheters. The device can include leaflet anchors for attaching to valve leaflets. One or more tethers can be slackened to allow the anchors to move relatively apart and / or relatively away from a spacer. The one or more tethers can be pulled to move the anchors closer to one another or and / or closer to the spacer.

A method of retrieving a previously implanted device from a native valve of a patient's heart includes attaching the retrieval device to the previously implanted device. An actuation member can engage the previously implanted device to move the previously implanted device from a closed configuration to an open configuration. A clasp capturing member can attach to a clasp of the previously implanted device.

A sacroiliac fusion implant device assembly has an implant body and a pair of bone fasteners. The implant body has a distal end and a proximal end with a longitudinal axis extending between a center of the distal end and a center of the proximal end. The distal end has cutting edges configured to cut tissue as the implant is pressed into a joint between a sacrum and an ilium. The proximal end has two bone fastener receiving apertures, each configured to receive a bone fastener and the implant body has a pair of sidewalls connecting the distal and proximal ends. The pair of bone fasteners can be a pair of threaded fasteners, or a pair of spike fasteners or a combination of one threaded fastener and one spike fastener.

An expandable interbody with a modular endplate has an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring to adjust a body length of the expandable interbody. The expansion ring has a plurality of teeth, and the outer column has at least one arm for engaging a tooth of the plurality of teeth to lock the expansion ring. The inner column and / or outer column can include a connector for connection to a modular endplate that has a substantially hollow core. The modular endplate includes a plate with a set screw entrapped therein. The modular endplate has an aperture to receive the connector of the inner and / or outer column.

Systems and methods for delivering a device for regulating blood pressure across a patient's atrial septum are provided. The delivery apparatus may include a first catheter, a hub having one or more engagers disposed thereon, the one or more engagers configured to releasably engage with a first expandable end of the shunt in a contracted delivery state within a lumen of a sheath, and an second catheter extending through a center lumen of the first catheter and the hub, wherein the first catheter, the hub, and the second catheter are independently moveable relative to the sheath. The inventive devices may reduce left atrial pressure and left ventricular end diastolic pressure, increase cardiac output, increase ejection fraction, relieve pulmonary congestion, and lower pulmonary artery pressure, among other benefits. The inventive devices also may be used to treat subjects having heart failure, pulmonary congestion, or myocardial infarction, among other pathologies.

Disclosed are systems and methods for assessment, management, and treatment of congestion in heart failure. The systems and methods may include or relate to wireless implants, reader modules, and uses thereof, which are configured to measure hemodynamic parameters of a patient in different patient states and positions. For example, the reader module may be hands free. For example, the reader module may be used at home by a patient. The reader module may be able to take readings and measurements when the patient is in a multitude of positions, including but not limited to, the supine and the prone positions. The reader module may be able to communicate and receive data from an implanted device when in a certain proximity of the implanted device and may be able to store, analyze, and / or transmit data to a different wireless device over a network, for example. In an embodiment, the reader module may be portable and wearable, e.g., through use of a garment or strap.

The embodiment of the invention provides an implanted passive closed-loop nerve stimulation system, and relates to the field of medical instruments. The implanted passive closed-loop nerve stimulation system comprises an implantation device used for being implanted into the body of a target object; the energy supply device is used for being attached to the surface of the target object, is in wireless communication connection with the implantation device and is configured to supply power to the implantation device and send stimulation configuration information to the implantation device, so that the implantation device generates a stimulation signal according to the stimulation configuration information and receives a bio-electricity signal sent by the implantation device; and the program control device is used for being in communication connection with the energy providing device and is configured to adjust the stimulation configuration information according to the bio-electricity signal sent by the energy providing device and send the adjusted stimulation configuration information to the energy providing device. According to the passive closed-loop nerve stimulation system provided by the embodiment of the invention, the size of an implanted part is reduced, the operation process is simplified, and the injury to a patient is reduced.

A spinal implant device is provided comprising a body structure with a central cavity and a movable lid configured to cover the central cavity. The movable lid is configured to be opened to pack a material in the central cavity. The movable lid can be connected to the body structure with a moveable joint. The spinal implant device can include a compressible feature. A method for treating the spine is provided comprising opening a movable lid of a spinal implant device, packing a material in a central cavity of a spinal implant device, closing the movable lid, and inserting the spinal implant device between vertebrae.

Described herein are methods and devices for monitoring or modulating an immune system in a subject with cancer, and methods and devices for treating a cancer in a subject. The implanted device can electrically stimulate the splenic nerve of the subject, which can modulate the inflammatory system (for example, by increasing or decreasing the blood level of one or more pro-inflammatory cytokines and / or anti-inflammatory cytokines to increase or decrease inflammation in the subject) and / or activate or increase circulation of one or more immune cells (such as natural killer cells and / or cytotoxic T-cells), for the treatment of cancer. The implanted medical device includes two or more electrodes configured to electrically stimulate the splenic nerve, and may further include an ultrasonic transducer configured to receive ultrasonic waves and convert energy from the ultrasonic waves into an electrical energy that powers the device.

An implantable device for sacroiliac (“SI”) joint fusion and an associated method employ an SI joint fusion portion and an anchor portion of smaller diameter than the SI joint fusion portion and that extends distally from a distal end of the SI joint fusion portion. The SI joint fusion portion is externally threaded and is configured to, when surgically implanted, extend across the SI joint. The anchor portion in turn extends distally from the SI joint fusion portion and is configured for implanting entirely within the patient's ilium adjacent the SI joint. In certain configurations, the joint fusion portion is configured to enable fixation of spinal equipment at a proximal end of the joint fusion portion. A stabilizing driver is additionally provided to aid in placement of the device when obstructions are present.

The invention provides an implantation device of an analyte sensor. The implantation device comprises a shell, a sheath, a monitor bracket, a first elastic piece, a guide needle bracket and a second elastic piece, the sheath is provided with a locking part; the monitor bracket is provided with a matching part; the matching part is used for being locked with the locking part; the shell is used for abutting against the matching part so as to unlock the matching part and the locking part; the first elastic piece is mounted between the sheath and the monitor bracket; the shell is used for abutting against the first elastic piece before abutting against the matching part; after the matching part and the locking part are unlocked, the first elastic piece can drive the monitor support to move towards the far end, the second elastic piece is arranged between the monitor support and the guide needle support, and the second elastic piece is used for driving the guide needle support to move towards the near end after the guide needle support moves towards the far end to a preset position. According to the implantation device of the analyte sensor, the situation that the sheath triggers the guide needle support to retract in advance is prevented, and the implantation success rate of the analyte sensor is increased.

The invention relates to the technical field of medical equipment, in particular to an analyte sensor implanting device. The analyte sensor implantation device comprises a shell assembly, a monitor frame, a monitor and a guide needle frame, wherein the monitor frame can be movably mounted in the shell assembly; the monitor is mounted on the monitor frame by means of adsorption and / or adhesion and / or interference assembly; the monitor comprises an analyte sensor; the guide needle frame is arranged on the monitoring instrument frame, and a guide needle is assembled on the guide needle frame; the guide needle is used for puncturing the skin so as to implant the analyte sensor; as the monitor of the analyte sensor implanting device is mounted on the monitor frame in an adsorption and / or adhesion and / or interference fit manner, a buckle is not required to be arranged on the monitor, a groove matched with the buckle is not required, and the monitor is not easy to separate from the skin of a user after being scraped after being separated from the monitor frame, so that the safety of the analyte sensor implanting device is improved. And normal use of a user is facilitated.

A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.

The invention relates to a flexible microelectrode implantation device, implantation equipment and an implantation system. The implantation device comprises a base, a plurality of implantation needle assemblies, a plurality of flexible microelectrodes and an implantation control piece. Each implantation needle assembly comprises a fixed seat and an auxiliary implantation needle which are connected with each other, the multiple fixed seats are detachably connected to the base, and each auxiliary implantation needle is connected with one flexible microelectrode; the implantation control piece comprises a first magnetic piece, each fixing seat comprises a second magnetic piece, the implantation control piece is magnetically attracted to the second magnetic piece on each fixing seat through the first magnetic piece, then each fixing seat and the corresponding auxiliary implantation needle are driven to be separated from the base, and the corresponding flexible microelectrode is implanted to a preset position of a brain area. By means of the arrangement, the implantation area and the implantation depth of each auxiliary implantation needle can be dynamically selected, rapid implantation of a single auxiliary implantation needle can be achieved in a magnetic attraction control mode, and the implantation efficiency cannot be reduced.

Described herein are methods for generating a coated device, electrode, or portion of an electrode for implanting into a subject. Such devices and electrodes are generated using methods like atomic layer deposition. In some cases, methods like etching are used to expose portions of a coated surface. The methods described herein improve overall hermeticity, biocompatibility, and biostability of implantable devices.