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US 5,769,671 AGranted
Connector spring
AssigneePacesetter, Inc.
InventorWisit Lim
Life of this patent
Estimating the term…
Abstract
A contact spring is provided within a connector for use in a pacemaker having a radially deflectable projections enhancing contact with an inserted lead and is square shaped so as to fit within an annular extending gap in the housing so that the corners of the square shape of the spring are captured within the annular gap and prevents pull out of the spring when an electrical lead is inserted or removed.
Claims12
A connector comprising:
- an elongated housing extending along a central axis;
- said housing having a generally cylindrical opening extending coaxially with said central axis;
- said opening in said housing being defined by first and second cylindrical surfaces each defined by a first diameter, an annular radially directed gap disposed within said opening and extending axially between said first and second cylindrical surfaces, said annular gap extending radially outwardly from said central axis and outwardly beyond each of said first and second cylindrical surfaces, said gap having a given width as measured along said axis extending in a direction parallel thereto;
- a spring having a width sufficient to be received within said gap and having at least one portion extending perpendicularly to said central axis and into said opening;
- wherein said spring being a stamped formed metallic spring having a generally closed shape as defined by four opposed sides each connected by a corner portion interposed therebetween and facing said central axis;
- and
- said spring on each side thereof carrying said at least one portion which is a deformed portion of an associated one of said sides extending inwardly beyond the respective side thereof and toward said central axis.
4 more elements
A connector comprising:
- an elongated generally cylindrical housing extending along a central axis;
- said housing having a generally cylindrical opening extending coaxially with said central axis;
- said opening in said housing being defined by first and second cylindrical surfaces each defined by a first diameter, the first cylindrical surface being defined by one surface of a stepped bore formed in said housing and said second cylindrical surface being defined by an inner surface of an annular collar received within another wider surface of said stepped bore;
- an annular radially directed gap disposed within said opening and extending axially between said first and second cylindrical surfaces, said annular gap extending radially outwardly from said central axis and beyond each of said first and second cylindrical surfaces, said gap having a given width as measured along said central axis extending in a direction parallel thereto;
- a spring having means extending perpendicularly to said central axis for engaging a lead inserted into said opening in said housing;
- wherein said spring being a stamped formed metallic spring having a general closed shape as defined by four opposed sides each connected by a corner portion interposed therebetween and facing said central axis;
- and
- said spring on each side thereof carrying said lead engaging means which are deformed portions of said sides extending inwardly beyond the respective side thereof and toward said central axis.
5 more elements
Dependencies are inferred from the claim text.