Back to results
US 2026/0123944 A1Published application
Devices for crossing occlusions
AssigneeReflow Medical, Inc.
InventorsThanh NGUYEN, Outhit BOUASAYSY
Life of this patent
Estimating the term…
Abstract
Ablation, crossing, and cutting systems, devices and associated methods can relate to a crossing device that includes, in combination a spring-enhanced handle and body configured to controllably extend and retract an interventional tool within a microcatheter for addressing an occlusion within a vessel of a patient to provide improved access for supplemental treatment and reperfusion.
Claims20
A crossing device comprising:
- a catheter having a distal handle defining an engager;
- a proximal handle defining a channel having a longitudinal portion and a circumferential portion, wherein the proximal handle is configured to translate along a longitudinal axis with the engager within the longitudinal portion, wherein the proximal handle is further configured to rotate about the longitudinal axis with the engager within the circumferential portion;
- an interventional tool extending within the catheter and the proximal handle;
- and
- a plunger coupled to a proximal end of the interventional tool, wherein the plunger is configured to move between the proximal handle and the distal handle.
2 more elements
A crossing device comprising:
- a catheter having a distal handle;
- a proximal handle, wherein the proximal handle is configured to translate along a longitudinal axis from a retracted configuration of the proximal handle and rotate about the longitudinal axis to a locked configuration of the proximal handle with respect to the distal handle;
- an interventional tool extending within the catheter and the proximal handle;
- and
- a plunger coupled to a proximal end of the interventional tool, wherein:
- the plunger is configured to move within a first range of motion between the proximal handle and the distal handle while the proximal handle is in the retracted configuration;
- and
- the plunger is configured to move within a second range of motion, different from the first range of motion, between the proximal handle and the distal handle while the proximal handle is in the locked configuration.
5 more elements
A method comprising:
- providing a crossing device with an interventional tool within a catheter while an engager of a distal handle of the catheter is within a longitudinal portion of a channel of a proximal handle such that a plunger coupled to the interventional tool has a first range of motion with respect to the catheter;
- advancing the proximal handle distally with respect to the distal handle by advancing the engager within the longitudinal portion of the channel such that the plunger has a second range of motion, different from the first range of motion, with respect to the catheter;
- and
- rotating the proximal handle with respect to the distal handle by moving the engager out of the longitudinal portion and circumferentially within a circumferential portion of the channel such that the proximal handle is in a locked configuration with respect to the distal handle in which longitudinal retraction of the proximal handle is limited.
1 more element
Dependencies are inferred from the claim text.