Toroidal compressible element including a switchback pattern
AssigneeCardiac Pacemakers, Inc.
InventorMark Stevenson
Life of this patent
Estimating the term…
Abstract
An example includes an apparatus for use within a header of an implantable medical device, the apparatus including a substantially annular spring, sized and shaped to be disposed in the header, the spring defining a loop extending about a central axis, the spring including a plurality of elastically deformable switchback portions that both zigzag and curve transversely about the loop to define a surface that at least partially encompasses the loop.
Claims20
An apparatus for use within a header of an implantable medical device, the apparatus comprising:
- a substantially annular spring, sized and shaped to be disposed in the header, the spring defining a loop extending about a central axis, the spring including a plurality of elastically deformable switchback portions that both zigzag and curve transversely about the loop to define a surface that at least partially encompasses the loop.
A method comprising:
- obtaining or providing a sheet of material;
- forming from the material a member comprising a plurality of switchback portions that zigzag about a loop;
- and
- shaping the member such that the plurality of switchback portions are elastically deformable and zigzag and curve about the loop.
An apparatus for use within a header of an implantable medical device, the apparatus comprising a biocompatible annular spring sized and shaped to be disposed in the header, the spring defining a ring-shaped loop extending around a central axis, the spring including a plurality of elastically deformable switchback portions that zigzag and curve about the loop, the spring formed by a process comprising:
- obtaining or providing a sheet of material;
- forming from the material a member comprising a plurality of switchback portions that zigzag about a loop;
- and
- shaping the member such that the plurality of switchback portions are elastically deformable and zigzag and curve about the loop.
The apparatus of claim 17, wherein
- the forming comprises stamping the material;
- the shaping comprises rolling;
- and
- the spring is formed of biocompatible material including 35% Ni, 35% Co, 20% CR, and 10% Mo.
Dependencies are inferred from the claim text.