ULTRASONIC WELDING OF FELT FILTER IN HARDSHELL RESERVOIR - Patent 1011750

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(11)

EP 1 011 750 A1

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(43)	Date of publication:
	28.06.2000 Bulletin 2000/26

(21)	Application number: 97945473.3

(22)	Date of filing: 02.10.1997

(51)	International Patent Classification (IPC)⁷: A61M 1/36, B29C 65/00, B29C 65/08, B01D 29/11

(86)	International application number:
	PCT/US9717/865

(87)	International publication number:
	WO 9815/303 (16.04.1998 Gazette 1998/15)

(84)	Designated Contracting States:
	DE IT

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Priority:

10.10.1996 US 728875

(71)	Applicant: Medtronic, Inc.
	Minneapolis, MN 55432 (US)

(72)	Inventor:
	VAN DRIEL, Michael, R. Fountain Valley, CA 92708 (US)

(74)	Representative: Hughes, Andrea Michelle et al
	Frank B. Dehn & Co.,European Patent Attorneys,179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)

(54)	ULTRASONIC WELDING OF FELT FILTER IN HARDSHELL RESERVOIR