Medtronic, Inc.

Other

Medtronics, Inc.

Patrick David Miller

Thomas H Spear

Nancy M Germanson

David C Miller

Douglas D Miller

Systems and methods for providing a cardiac stimulus device lead having fault tolerance and fault isolation are disclosed. A medical electrical lead is provided according to one aspect. According to one embodiment, the lead includes a first conductor and a second conductor for transmitting an electrical pulse from a pulse generator. The lead further includes a switching mechanism, a first electrode, and a lead assessment circuit. The switching mechanism selectively couples the first conductor to the first electrode. The first electrode is decoupled during a test phase and the switching mechanism directly couples the first conductor to the second conductor. The lead assessment circuit processes a signal associated with the electrical properties of the lead to determine whether the lead is exhibiting a lead related condition.

Isolating lead conductor for fault detection

The present disclosure pertains to methods, devices and systems for detection of a lead-related condition in a medical electrical lead. In accordance with the disclosure, a physiological waveform interpreter module embedded within the lead functions to sense the occurrence of a cardiac event and to generate a minimal impact signal. In an example implementation, the physiological waveform interpreter module is disposed proximate to the sensing site or vicinity of cardiac signals. The physiological waveform interpreter module transmits the minimal impact signal that may include one or more predetermined properties to a remotely located lead monitoring module upon sensing a cardiac event. The lead monitoring module receives and processes the minimal impact signal to determine whether a cardiac depolarization has occurred and simultaneously verify the integrity of the transmission medium.

Fault tolerant methods and architectures for embedded intelligence in medical leads

The disclosure describes methods and devices for providing early indicators of a lead-related condition in a medical electrical lead. Among other things, the methods and devices will detect, obtain, or provide indicators of static or intermittent disruptions in a conductive pathway of the lead based on changes in conductive continuity properties of a medical electrical lead. The conductive behaviors and properties will be managed to facilitate signal stability and fidelity. In some embodiments, the methods and devices may include functions to enable one or more of monitoring a lead's conductive pathway, detecting static and transient behaviors of the conductive pathway, stabilizing the monitored pathway, reconfiguring the pathway, and providing lead-related condition data to an associated implantable medical device. The early indicators may be generated in a real-time, continuous manner to provide early detection and notification of lead degradation.

Method and apparatus to manage lead-related conditions for fault tolerance enhancements

Techniques are described for detecting lead-related conditions for implantable electrical leads. In some of the described embodiments, an implantable electrical lead assembly is provided with a coupling member for connecting a conductor and associated insulator(s) to an electrode/sensing element. The implantable medical device controls and performs a measurement of an electrical property of the electrical lead during periods when the conductor is decoupled from the electrode/sensing element. An indication of a lead-related condition is derived based on the measured electrical property. The lead-related condition may be associated with an insulator of a lead body of the electrical lead.

Isolating lead body for fault detection

This disclosure relates to a medical electrical lead having fault detection and fault isolation. The lead may include a first conductor coupled to a first electrode and a second conductor coupled to a second electrode. A capacitor is disposed within the lead and selectively coupled to the first and second conductors of the lead. The capacitor is charged in a test mode of operation after the first and second electrodes have been isolated from the conductors via an isolation mechanism and the capacitor will discharge through the first and second conductors. The capacitor discharge morphology is processed to detect lead-related conditions.

Isolated lead conductor measurements for fault detection

A shelving system may comprise a pair of support brackets and a shelf platform supportable by the brackets. The platform includes a supporting portion, a rear flange on the supporting portion, and a front flange on the supporting portion. The shelf platform may be configured to be supported by the support brackets when a portion of the brackets extend upwardly from the platform and when a portion of the brackets extend downwardly from the platform. Optionally, a work platform is pivotable between usage and storage positions, and the brackets are pivotable between a deployed position supporting the platform in the usage position and a storage position allowing the platform to move to the storage position. Optionally, a mounting rail and at least one hook removably mountable on the rail may be provided. The hook may have a stabilizer tab that stabilizes the hook with respect to the rail.

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Circle Pines, MN, United States of America

Patrick David Miller