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US 7,842,049 B2Granted
Systems for anchoring a medical device in a body lumen
AssigneeAbbott Laboratories
InventorLaveille Kao Voss
Life of this patent
Estimating the term…
Abstract
A system for securing a device in tissue, having a sheath having a plurality of side openings; a rotatable element disposed within the sheath; and a plurality of curved projections extending from the rotatable element, wherein rotation of the rotatable element within the sheath pushes distal ends of each of the curved projections outwardly through one of the plurality of openings and into the tissue.
Claims13
A method of anchoring a device in a body lumen or cavity, comprising:
- inserting a device into a body lumen or cavity, the device comprising:
- a sheath having at least one sidewall opening and a longitudinal axis;
- a rotatable element disposed within the sheath and rotatable about the longitudinal axis;
- and
- at least one projection extending radially from the rotatable element, the at least one projection having an upper surface disposed and movable within a plane transverse to the longitudinal axis;
- rotating the rotatable element with respect to the sheath to move a distal end of the at least one projection outwardly within the plane, through the at least one sidewall opening, and into the body lumen or cavity;
- wherein moving the rotatable element relative to the sheath comprises rotating the sheath and rotatable element in the same direction at different speeds;
- and
- capturing an end of a suture disposed in a suture-carrying feature on the at least one projection by advancing a needle through the body tissue and into the suture-carrying feature within the body lumen.
6 more elements
A method of anchoring a device in a body lumen or cavity, comprising:
- inserting a device into a body lumen or cavity, the device comprising a sheath having a proximal end, a distal end, a longitudinal axis, and at least one sidewall opening;
- a rotatable element disposed within the sheath, the rotatable element rotating about a longitudinal axis of the sheath;
- and
- at least one projection extendable radially from the rotatable element, wherein the at least one projection is formed of a shape memory material;
- moving the rotatable element relative to the sheath to move the rotatable element transverse to the longitudinal axis of the sheath and extend the at least
- one projection outwardly into the body lumen or cavity through at least one of the at least one sidewall openings in a radial direction with respect to the longitudinal axis of the sheath, wherein the moving step further comprising subjecting the at least one projection to a temperature change expanding the at least one projection radially outwardly when the distal end of the of the at least one projection passes outwardly through the at least one sidewall opening in the sheath as the rotatable element is rotated with respect to the sheath;
- and capturing an end of a suture disposed in a suture-carrying feature on the at least one projection by advancing a needle through the body tissue and into the suture-carrying feature within the body lumen.
4 more elements
Dependencies are inferred from the claim text.