Electricity: electrical systems and devices – Electrolytic systems or devices – Liquid electrolytic capacitor
Reexamination Certificate
2005-07-26
2005-07-26
Thomas, Eric (Department: 2831)
Electricity: electrical systems and devices
Electrolytic systems or devices
Liquid electrolytic capacitor
C361S516000, C029S025030
Reexamination Certificate
active
06922330
ABSTRACT:
Implantable medical devices (IMDs) and components, including flat electrolytic capacitors and methods of making and using same, particularly an improved electrolytic capacitor fabricated of an electrode stack assembly comprising a plurality of capacitor layers stacked in registration upon one another. Each capacitor layer comprises a valve metal cathode layer having a cathode tab, a valve metal anode layer having an anode tab, and a separator layer located between the cathode layers. The anode layer is assembled from a plurality of valve metal anode sheets that are etched and anodized, stacked side-by-side, and electrically and mechanically joined together by laser weld beads. A valve metal anode tab having a thickness equal to one or more anode sheet is inserted into a tab notch in one or more stacked anode sheet and joined to the anode sheet stack by laser welding the tab and sheet edges together.
REFERENCES:
patent: 4254775 (1981-03-01), Langer
patent: 4942501 (1990-07-01), MacFarlane et al.
patent: 5086374 (1992-02-01), MacFarlane et al.
patent: 5131388 (1992-07-01), Pless et al.
patent: 5146391 (1992-09-01), MacFarlane et al.
patent: 5153820 (1992-10-01), MacFarlane et al.
patent: 5522851 (1996-06-01), Fayram
patent: 5562801 (1996-10-01), Nulty
patent: 5584980 (1996-12-01), Griffith et al.
patent: 5628801 (1997-05-01), MacFarlane et al.
patent: 5748439 (1998-05-01), MacFarlane et al.
patent: 6319292 (2001-11-01), Pozdeev-Freeman et al.
patent: 6493212 (2002-12-01), Clarke et al.
patent: 6687118 (2004-02-01), O'Phelan et al.
Lunsmann, “High Energy Density Capacitors for Implantable Defibrillators,”CARTS 96: 16th Capacitor and Resistor Technology Symposium, Mar. 11-15, 1996, and atCARTS-Europe 96: 10th European Passive Components Symposium., Oct. 7-11, 1996, pp. 35-39.
Troup, “Implantable Cardioverters and Defibrillators,”Current Problems in Cardiology, vol. XIV, No. 12, Dec. 1989, pub. Chicago, IL.
Breyen Mark D.
Miltich Thomas P.
Nielsen Christian S.
Young Paul B.
McDowall Paul H.
Medtronic Inc.
Thomas Eric
Wolde-Michael Girma
LandOfFree
Implantable medical device having flat electrolytic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Implantable medical device having flat electrolytic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable medical device having flat electrolytic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3421415