Boston Scientific Scimed, Inc.

Cardiac Pacemakers, Inc.

Other

St. Jude Medical, Cardiology Division, Inc.

Boston Scientific Corporation

Kevin D Edmunds

Roger Noel Hastings

Michael J Pikus

Daniel M Lafontaine

John Becker

Mark Lynn Jenson

Leonard B Richardson

Tat-Jin Teo

Troy Terrance Tegg

Josef Vincent Koblish

Scott Raymond Smith

Martin R Willard

Ryan Kenneth Buesseler

Neil A Sticha

Frank W Ingle

Anupama Sadasiva

Kenneth R Larson

Dnyanesh Talpade

Mike Pikus

John A Becker

An apparatus for detecting relative positioning of medical devices located within a human body, the apparatus comprising an inner elongate member comprising a plurality of electrodes and a first sensor member, where the first sensor member is located a known distance from each of the plurality of electrodes, and an outer elongate member comprising a first sensor, and an outer sensor member located between the first sensor and an inner wall of the outer elongate member, where the inner elongate member is configured to move within the outer elongate member and the first sensor is configured to sense a signal generated by movement of the inner elongate member relative to the outer elongate member, and a position detection module including an electronic control unit configured to detect a position of the first sensor member relative to the first sensor based on the signal.

System and apparatus for detecting catheters relative to introducers

A wireless electrostimulation system can comprise a wireless energy transmission source, and an implantable cardiovascular wireless electrostimulation node. A receiver circuit comprising an inductive antenna can be configured to capture magnetic energy to generate a tissue electrostimulation. A tissue electrostimulation circuit, coupled to the receiver circuit, can be configured to deliver energy captured by the receiver circuit as a tissue electrostimulation waveform. Delivery of tissue electrostimulation can be initiated by a therapy control unit.

Wireless tissue electrostimulation

Disclosed herein, among other things, are methods and apparatus related to radio frequency (RF) ablation catheters. The present subject matter provides an ablation catheter system including an ablation catheter, multiple RF electrodes positioned along a distal end of a catheter, an electrical stimulation generator, and a control circuit electrically connected to the stimulation generator. According to various embodiments, the RF electrodes are each connected to the stimulation generator using a switch, and the control circuit is configured to distribute RF power from the stimulation generator to the RF electrodes using the switches to provide ablation therapy.

Multiple electrode RF ablation catheter and method

A metallic tube arrangement includes an electrode region configured to expand radially and contract radially in response to increasing and decreasing a temperature at the electrode region, respectively. The electrode region is configured for intravascular deployment and delivery of high frequency energy to target tissue of a target vessel of the body. The electrode region is configured to expand radially to a diameter sufficient to contact an inner wall of the target vessel in response to a decrease in electrode region temperature and to contract radially to a diameter smaller than a diameter of the target vessel in response to an increase in electrode region temperature.

Self-expanding cooling electrode for renal nerve ablation

Systems for nerve and tissue modulation are disclosed. An illustrative system may include an intravascular nerve modulation system including a catheter shaft, a first flexible mount, and a cylindrical ablation transducer. The ablation transducer may be affixed to the catheter shaft through the flexible mount to allow an infusion fluid to pass through a lumen of the transducer. Another illustrative system may include an intravascular nerve modulation system including an expandable basket for centering an ablation tra7nsducer within a lumen.

Ultrasound ablation catheter with cooling infusion and centering basket

A medical device system includes an elongated body with a distal end that is configured and arranged for insertion into a patient. A housing is disposed in the distal end of the body. A rotatable magnet is disposed in the housing. At least one magnetic field winding is configured and arranged to generate a magnetic field at the location of the magnet. The magnetic field causes rotation of the magnet at a target frequency. An array of magnetic field sensors is disposed external to the patient. The magnetic field sensors are configured and arranged to sense the location and orientation of the magnet in relation to the array of magnetic field sensors.

Systems and methods for determining the position and orientation of medical devices inserted into a patient

An imaging assembly comprises a catheter having a distal end and a proximal end, an ablation tip at the distal end of the catheter, and an imaging device disposed within the ablation tip. The catheter defines a catheter lumen that extends from the proximal end to the distal end. The catheter is configured and arranged for insertion into a body lumen such as a blood vessel or heart chamber. The ablation tip has a wall that defines a lumen in communication with the lumen of the catheter. The imaging device is disposed within the lumen of the ablation tip, and is configured to transmit pulsed acoustic waves for generating images of body tissue at a target ablation site within the body.

Ultrasound guided tissue ablation

An annuloplasty device having an expandable member, a plurality of lobes, and a piercing wire is herein disclosed. In some embodiments, the lobes extend radially outwardly from the expandable member. The lobes each have a wire lumen disposed therethrough, and the piercing wire is extendable through the wire lumen of each lobe to secure the device to adjacent heart tissue. In some embodiments, the expandable member comprises an inflatable medical balloon. In addition, a method of implanting an annuloplasty device is disclosed.

Annuloplasty ring with piercing wire and segmented wire lumen

A percutaneous pumping system for providing hemodynamic support to a patient includes a pumping sleeve that defines a lumen extending along the length of the pumping sleeve. The pumping sleeve is configured and arranged for insertion into patient vasculature. At least one rotatable magnet is disposed in the pumping sleeve. The at least one first magnet is configured and arranged to be driven to rotate by a magnetic field generated external to the pumping sleeve. At least one impeller is coupled to the at least one magnet. Rotation of the at least one magnet causes a corresponding rotation of the at least one impeller. An anchoring arrangement is coupled to the pumping sleeve. The anchoring arrangement is configured and arranged to anchor the pumping sleeve at a target pumping location when the pumping sleeve is inserted into patient vasculature.

Systems and methods for making and using percutaneously-delivered pumping systems for providing hemodynamic support

An imaging assembly for an intravascular ultrasound system includes a catheter, an imaging core, and at least one transducer conductor. The imaging core is insertable into the catheter and extendable from a distal end of the catheter. The imaging core includes a rotatable magnet, a tilted reflective surface, and at least one fixed transducer all disposed in a body. The rotatable magnet is configured and arranged to rotate by a magnetic field generated external to the catheter. The tilted reflective surface rotates with the magnet. The at least one transducer is configured and arranged for transforming applied electrical signals to acoustic signals and also for transforming received echo signals to electrical signals. The at least one transducer conductor is electrically coupled to the at least one transducer and is configured and arranged to extend into the catheter when the imaging core is extended from the catheter.

Growing community of inventors

Circle Pines, MN, United States of America

Kevin D Edmunds