Tissue retraction device
AssigneeBoston Scientific Scimed, Inc.
InventorsPaul Smith, Scott Brechbiel, Ryan Wales, Danny Shu-Huan Lee, Samuel Raybin, Niklas Andersson, Jialiang Wang
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to the field of tissue dissection. Specifically, the present disclosure relates to medical devices which lift and retract tissue during a dissection procedure to improve visualization of the target tissue and mitigate obstruction of dissection tools. In particular, the present disclosure relates to a tissue retraction device which moves from a constrained to relaxed configuration to immobilize and retract the dissected portion of target tissue during a dissection procedure.
Claims20
A tissue retractor, comprising:
- an elongate flexible element comprising:
- a proximal end configured to engage a first target tissue portion,
- a distal end configured to engage a second target tissue portion;
- at least one guide member attached to the elongate flexible element, wherein the at least one guide member defines a lumen extending therethrough;
- and
- a control wire configured to be slidably received within the lumen of the at least one guide member;
- wherein the elongate flexible element moves between a first configuration when the control wire is disposed within the lumen of the at least one guide member, and a second configuration when the control wire is not disposed within the lumen of the at least one guide member.
A system, comprising:
- a delivery catheter;
- and
- an elongate flexible element slidably disposed within a lumen of the delivery catheter, the elongate flexible element comprising a proximal end and a distal end configured to engage respective first and second target tissue portion;
- wherein the elongate flexible element is moveable between a first planar configuration when constrained and a second bowed configuration when unconstrained.
A method, comprising:
- advancing a delivery catheter through a working channel of an endoscope to a position adjacent to a target tissue such that a distal end of the delivery catheter is above a first portion of the target tissue;
- advancing an elongate flexible element through a working channel of the delivery catheter such that a distal end of the elongate flexible element engages the first portion of the target tissue beyond a distal end of the delivery catheter;
- proximally retracting the delivery catheter such that a proximal end of the elongate flexible element moves beyond the distal end of the delivery catheter;
- urging the distal end of the delivery catheter against the proximal end of the elongate flexible element such that the proximal end of the elongate flexible element engages a second portion of the target tissue;
- and
- proximally retracting the control wire such that the control wire is removed from within the lumen of the at least one guide member.
Dependencies are inferred from the claim text.