Cantilevered spring contact for an implantable medical device

US8784143B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• John M. Edgell · Plymouth, US
• David M. Flynn · Lino Lakes, US
• John E. Hansen · Ham Lake, US
• Michael J. Kloosterboer · Minneapolis, US
• Lawrence D. Swanson · Lino Lakes, US

Key dates

• Filing date: Mar 30, 2012
• Grant date: Jul 22, 2014
• Expiry date: Jul 14, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3752
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Some examples of an electrical contact spring for an implantable medical device includes a housing, rigid and tubular in shape, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening and a spring disposed in the housing, the spring tubular in shape and defining a spring passage concentric to the housing passage, the spring including: a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing, a plurality of spring elements coupled to and extending from the distal ring portion toward the proximal portion of the housing and a proximal ring portion disposed adjacent the proximal portion of the housing, cantilevered and suspended inside of and spaced apart from the housing by the plurality of spring elements.