Intraluminal implant delivery system and method
AssigneeDePuy Synthes Products, Inc.
InventorsDaniel SOLAUN, David BLUMENSTYK
Life of this patent
Estimating the term…
Abstract
Systems, devices, and methods for retracting a pull wire from a hypotube can include positioning a pull wire having an engagement bump on its proximal end within a channel of a device and sliding the pull wire proximally through a channel of a device by moving grippers of the device proximally to engage and slide the bump. Subsequent distal movement of the grippers can result in the grippers disengaging the bump without disturbing the position of the pull wire or causing the pull wire to move distally.
Claims20
A system for deploying an implant comprising:
- a hypotube comprising a lumen therethrough and a proximal end;
- a pull wire positioned within the lumen and extending proximal the proximal end of the hypotube, the pull wire comprising a proximal end and a circumference;
- an engagement bump positioned on the pull wire approximate the proximal end of the pull wire and extending beyond the circumference of the pull wire;
- a groove sized to slidably receive the engagement bump;
- and
- a gripper movable in a distal direction and a proximal direction, the gripper engaging the engagement bump upon movement in the proximal direction and disengaging the engagement bump upon movement in the distal direction.
A device for retracting a pull wire from a hypotube, the device comprising:
- a receptacle comprising a channel for slidably receiving a pull wire and a distal surface for engaging a proximal end of a hypotube;
- and
- a retractor coupled to the receptacle movable in a proximal direction and a distal direction parallel to the channel comprising an engagement surface positioned approximate the channel for engaging an extending portion of the pull wire,
- wherein a proximal movement of the retractor extracts the pull wire from the proximal end of the hypotube extending the pull wire into the channel, and a subsequent distal movement of the retractor disengages the extending portion of the pull wire such that pull wire remains stationary in relation to the hypotube.
A method of manipulating an implant delivery system comprising the steps of:
- providing an implantation device comprising a pull wire and a hypotube;
- positioning an engagement bump on the pull wire approximate a proximal end of the pull wire;
- providing a retracting device comprising a channel and a gripper;
- positioning the pull wire within the channel;
- engaging a proximal end of the hypotube with a distal surface of the retracting device;
- moving the gripper to engage the engagement bump;
- pulling the gripper and the engaged engagement bump proximally through the channel thereby retracting the pull wire proximally from the proximal end of the hypotube;
- moving the gripper distally to disengage the engagement bump;
- and
- maintaining a stationary position of the pull wire in relation to the channel in response to the moving of the gripper distally.
Dependencies are inferred from the claim text.