Invention Grant
US08428716B2 Apparatus and methods for automatic adjustment of AV interval to ensure delivery of cardiac resynchronization therapy
有权
用于自动调整AV间隔以确保心脏再同步治疗的传递的装置和方法
- Patent Title: Apparatus and methods for automatic adjustment of AV interval to ensure delivery of cardiac resynchronization therapy
- Patent Title (中): 用于自动调整AV间隔以确保心脏再同步治疗的传递的装置和方法
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Application No.: US12505925Application Date: 2009-07-20
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Publication No.: US08428716B2Publication Date: 2013-04-23
- Inventor: Thomas J. Mullen , John E. Burnes , Aleksandrew T. Sambelashvili
- Applicant: Thomas J. Mullen , John E. Burnes , Aleksandrew T. Sambelashvili
- Applicant Address: US MN Minneapolis
- Assignee: Medtronic, Inc.
- Current Assignee: Medtronic, Inc.
- Current Assignee Address: US MN Minneapolis
- Agent Reed A. Duthler
- Main IPC: A61N1/365
- IPC: A61N1/365
Abstract:
A method of left ventricular pacing including automated adjustment of a atrio-ventricular (AV) pacing delay interval and intrinsic AV nodal conduction testing. It includes—upon expiration or reset of a programmable AV Evaluation Interval (AVEI)—performing the following: temporarily increasing a paced AV interval and a sensed AV interval and testing for adequate AV conduction and measuring an intrinsic atrio-ventricular (PR) interval for a right ventricular (RV) chamber. In the event that the AV conduction test reveals an AV conduction block condition then a pacing mode-switch to a bi-ventricular (Bi-V) pacing mode occurs and the magnitude of the AVEI is increased.
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