Locking assembly for coupling guidewire to delivery system
AssigneeEndologix, Inc.
InventorsKevin Chu, Rolando Lee, Craig Welk, Bryant Tran
Life of this patent
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Abstract
A locking assembly for releasably coupling a first elongate member to a second elongate member is provided. The locking assembly can include a first lumen for anchoring the locking assembly to a catheter and a second lumen for releasably retaining a guidewire to the locking assembly. A release member can interface with the locking assembly and apply a force that decouples the guidewire from the locking assembly.
Claims18
A method of accessing a patient's vessel comprising,
- placing a delivery catheter comprising a locking assembly and an elongated structure in the patient vessel,
- wherein locking assembly comprises:
- a housing comprising a proximal end, a distal end, and a lateral wall portion;
- a first lumen extending from the proximal end of the housing to the distal end of the housing;
- and
- a second lumen extending from the distal end of the housing, said second lumen having a first diameter and a second diameter, said second lumen being configured to releasably receive the elongate structure;
- and
- advancing a release member along the elongated structure to disengage the elongated structure from housing, wherein advancing the release member places a vertical force on the elongated structure, thereby disengaging the elongated structure from the housing.
A method of releasing a guidewire from a catheter in a vessel comprising:
- placing a delivery catheter comprising a locking assembly and a guidewire in the vessel;
- wherein the locking assembly comprises:
- a housing comprising a first lumen and a second lumen;
- and
- an interlock portion configured to retain a distal portion of the guidewire;
- and
- advancing a sheath along the guidewire and disengage the guidewire from the second lumen, wherein advancing the sheath places a vertical force on the guidewire, thereby disengaging the guidewire from the housing.
A method of releasing a first elongate member from a second elongate member in a vessel, comprising:
- placing a delivery catheter comprising a housing, a first elongate member and a second elongate member in the vessel;
- wherein a first housing lumen extends within the housing and receives the first elongate member from a side of the housing,
- wherein a second housing lumen extends within the housing and receives the second elongate member from a side of the housing;
- and
- advancing a sheath along the second elongate member to disengage the second elongate member from the second housing lumen, wherein advancing the sheath places a vertical force on the second elongate member, thereby disengaging the second elongate member from the housing.
Dependencies are inferred from the claim text.