Surgical retrieval device radially deployable from collapsed position to a snare or cauterization loop
OwnerRafic Salehinventor
Life of this patent
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Abstract
A surgical capture component for deployment from a distal end of a catheter formed of a plurality of radially positionable shaped members each having a deployed position biased to radially position around a center axis and having a collapsed position adjacent to a loop a planar loop portion. The loop may be electrified to cauterize tissue. Deployment of the shaped members is provided by mechanical release or automatic release of a restraint when the loop is electrified.
Claims20
A surgical apparatus for deployment from a distal end of a catheter, comprising:
- a loop operatively engaged with a control wire adapted for translation through a lumen;
- a plurality of radially positionable shaped members each having a deployed position radially positioned around a center axis, and having a collapsed position adjacent to said loop;
- said loop and said members in said deployed position forming a basket-like capture component;
- means to bias said members to said deployed position;
- means to restrain said shaped members in said collapsed position;
- and
- means to release said means to restrain said shaped members in said collapsed position, whereby said shaped members are releasable from said collapsed position to biasly rotate to said deployed position to form said capture component.
A method of forming a surgical apparatus for deployment from a distal end of a catheter and having a planar loop operatively engaged to a control wire adapted for translation through a lumen and having a plurality of radially positionable shaped members each having a deployed position radially positioned around a center axis to form a capture component, and each having a collapsed position held adjacent to said loop by means for restraint comprising:
- forming said planar loop;
- engaging said loop to a control wire;
- forming said plurality of radially positionable shaped members using memory shape material in a deployed position radially positioned around a center axis extending from said control wire;
- rotating said shaped members adjacent to said loop to said collapsed position;
- and
- employing a releasable means for restraint to maintain said members adjacent to said loop.
Dependencies are inferred from the claim text.