Minimally invasive implantable device for monitoring physiologic events

US5987352A · kind A · utility

Assignee

• Medtronic, Inc. · US

Inventors

• George Klein · London, CA
• Dwight H. Warkentin · Arden Hills, US
• Kenneth M. Riff · Plymouth, US
• Brian B. Lee · Golden Valley, US
• James K. Carney · Brooklyn Park, US
• Gregg Turi · Hackettstown, US
• Anthony J. Varrichio · Austin, US

Key dates

• Filing date: Mar 3, 1998
• Grant date: Nov 16, 1999
• Expiry date: Mar 3, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3756
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A minimally invasive implant, means for insertion, and description of how to most efficiently use it are described n several embodiments. This implant preferably has a segmented looping memory for storing triggered physiologic events. Preferred events for setting autotriggers to record physiologic signals occurring during events include arrhythmias and syncopal events. Preferably the device can function without a microprocessor. An outside device or other patient activated manual trigger is included. Auto triggers and manually set triggers may be of different sizes. The preferred physiologic events are ECG signals. Electrode spacing can be critical. Additional sensors may be provided to the device. Preferred communications with the device is through telemetry such as is used for pacemakers and other implanted devices.