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US007283863B2

(12) United States Patent

Gunderson et al.

(io) Patent No.: (45) Date of Patent:

US 7,283,863 B2 Oct. 16, 2007

(54) METHOD AND APPARATUS FOR
IDENTIFYING CARDIAC AND
NON-CARDIAC OVERSENSING USING
INTRACARDIAC ELECTROGRAMS

(75) Inventors: Bruce D. Gunderson, Plymouth, MN (US); Amisha S. Patel, Maple Grove, MN (US); Chad A. Bounds,

Minneapolis, MN (US)

(73) Assignee: Medtronic, Inc., Minneapolis, MN (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 686 days.

(21) Appl. No.: 10/135,080

(22) Filed: Apr. 29, 2002

(65) Prior Publication Data

US 2003/0204215 Al Oct. 30, 2003

Int. CI.

A61B 5/04 (2006.01)

U.S. CI 600/509

Field of Classification Search 600/509,

600/510,515; 607/27 See application file for complete search history.

References Cited

U.S. PATENT DOCUMENTS

4,374,382 A 2/1983 Markowitz 340/870.01

5,117,824 A 6/1992 Keimel et al 128/419 D

5,193,535 A 3/1993 Bardy et al 128/419 D

5,193,550 A 3/1993 Duffin 128/697

5,507,786 A 4/1996 Morgan et al 607/27

5,545,186 A 8/1996 Olson et al 607/14

5,549,646 A 8/1996 Katz et al 607/8

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