Medtronic, Inc.

Biocompatibles UK Limited

Boston Scientific Scimed, Inc.

Timothy J Davis

Carl D Wahlstrand

Keith Alan Miesel

James D Reinke

Jonathan L Kuhn

John E Burnes

Can Cinbis

William T Donofrio

David Jerome Peichel

Paul Gordon Krause

Robert Michael Ecker

Gerald P Arne

Thomas A Anderson

Jeffrey M Jelen

James M Olsen

Xiaohong Zhou

Gregory Anthony Hrdlicka

Piotr J Przybyszewski

James Kevin Carney

Jonathan P Roberts

Leroy L Perz

Nathan Andrew Torgerson

Andrew J Ries

John E Kast

Darren A Janzig

John D Wahlstrand

Satish Ramadhyani

Shawn D Knowles

Daniel T Kollmann

Luan T Chan

David W Hoffman

Bernard Q Li

Chris J Paidosh

John J Grevious

Gerald G Lindner

Paul F Gerrish

Kaustubh R Patil

Jason William Sprain

John R Hamilton

David W Graden

John Robert Hamilton

Piotr Przybyszewski

A cryosurgery system, comprising two or more cryoprobes is provided. Each cryoprobe includes a probe shaft having a distal section insertable in a patient and a proximal coupler. A connector interface with connection ports permits connections to a corresponding cryoprobe. Each connection port can have an isolating sleeve between the proximal coupler and the connection port when the proximal coupler of the respective cryoprobe is inserted in the connection port. The isolating sleeve can include an electrically insulating material so as to electrically isolate each cryoprobe connected to its corresponding connection port from other cryoprobes connected to their corresponding connection ports. An electrical measurement system can be connected to each connection port to detect electrical signals associated with the probe shaft. A control system can detect, based on the electrical signals detected by the electrical measurement system whether the probe shaft is electrically connected to the electrical heater.

Cryosurgery system

A magnetic resonance imaging (MRI) guided surgical system is provided that includes one or more surgical tools having components configured to develop reactive effects when exposed to MR signals generated by the MRI system. The system includes a control system that can determine whether the MR system is generating MR signals, and if the control system determines that the MR system is generating MR signals, mitigates the reactive effects of MR signals on components of the surgical tools. The system can include a cryoablation system with a cryoprobe having a probe shaft being made of a metallic material. If the control system determines that the MR system is generating MR signals, the control system can electrically disconnect the cryoprobe and/or ignore electrical signals generated by the electric heater in response to exposure to MR signals, and/or initiate a cooling operation of the probe shaft, whereby the cooling operation.

Cryoablation system with magnetic resonance imaging detection

An implantable stimulation system comprises a stimulator for generating electrical stimulation and a conductive stimulation lead having a proximal end electrically coupled to the stimulator, wherein at least a first component of the impedance looking into the stimulator is substantially matched to the impedance of the stimulation lead. At least one distal stimulation electrode is positioned proximate the distal end of the stimulation lead.

Lead electrode for use in an MRI-safe implantable medical device

In general, the disclosure is directed toward an implantable medical device that includes a plurality of sensor modules that are implanted within a patient. The sensor modules may cooperate with each other to coordinate the timing for performance of one or more sensor actions across the modules when making a measurement. Example measurements include tissue perfusion measurements, oxygen sensing measurements, sonomicrometry measurements, and pressure measurements. The coordination of the sensor modules may be controlled by a signal that is transmitted from a host controller to the sensor modules via a bus. In some examples, the bus may have two wires that transmit both timing information and data information to the sensor modules. The signal may be a signal that is substantially periodic, such as a pulsed signal. In additional examples, the signal may supply operating power and timing information to the sensor modules.

Timing coordination of implantable medical sensor modules

Electrical crosstalk between two implantable medical devices or two different therapy modules of a common implantable medical device may be evaluated, and, in some examples, mitigated. In some examples, one of the implantable medical devices or therapy modules delivers electrical stimulation to a nonmyocardial tissue site or a nonvascular cardiac tissue site, and the other implantable medical device or therapy module delivers cardiac rhythm management therapy to a heart of the patient.

Implantable medical device crosstalk evaluation and mitigation

A medical device including an optical sensor is configured to measure an optical signal by integrating a current induced on a light detector of the optical sensor to obtain a voltage signal. The voltage signal is compared to a threshold. Responsive to the voltage signal reaching the threshold, an optical sensor control parameter is adjusted. The optical sensor is operated to produce the voltage signal using the adjusted control parameter.

Optical sensor system and measurement method

An optical sensor for a medical device includes a fixed lens spacing between emit and receive modules to achieve target sensor sensitivity, while varying other sensor parameters in order to increase signal amplitude without increasing power demand. An optical sensor connected to a housing of a medical device includes a circuit board, an opto-electronic component, a wall, a lens, and a ferrule. The circuit board is arranged within the housing. The opto-electronic component is mounted on a surface of the circuit board. The wall protrudes from the surface of the circuit board and surrounds the opto-electronic component. The lens is offset from the surface of the circuit board. The ferrule is connected to the housing, the lens and the wall. An inner surface of the wall mates with an outer surface of the ferrule.

Optical sensor for medical device

A reflectance-type optical sensor includes one or more photodiodes formed in a semiconductor substrate. A well having sidewalls and a bottom is formed in the top surface of the substrate, and a reflective layer is formed on the sidewalls and bottom. A light-emitting diode (LED) is mounted in the well, so that light emitted laterally and rearwardly from the LED strikes the sidewalls or bottom and is redirected in a direction generally perpendicular to the top surface of the substrate. The optical sensor can be fabricated using microelectromechanical systems (MEMS) fabrication techniques.

Optical sensing device for use in a medical device

A system, method and implantable medical for concurrently providing a therapeutic output to a patient while communicating transcutaneously with an external device. The therapeutic output is provided to the patient with an implantable medical device wherein an electromagnetic signal is associated with at least one of recharging of a rechargeable power source and providing the therapeutic output. Bi-directional transcutaneous communication is conducted via via telemetry between the implantable medical device and an external device using a telemetry signal while the telemetry signal and the electromagnetic signal occur simultaneously.

Concurrent delivery of treatment therapy with telemetry in an implantable medical device

A therapy or monitoring system may implement one or more techniques to mitigate interference between operation of a charging device that charges a first implantable medical device (IMD) implanted in a patient and a second IMD implanted in the patient. In some examples, the techniques may include modifying an operating parameter of the charging device in response to receiving an indication that a second IMD is implanted in the patient. The techniques also may include modifying an operating parameter of the second IMD in response to detecting the presence or operation of the charging device.

Interference mitigation for implantable device recharging

Growing community of inventors

Coon Rapids, MN, United States of America

Timothy J Davis