Catch members for occluder devices
AssigneeNMT Medical, Inc.
InventorsSteven Opolski, Sean Forde, Stephanie Kladakis, David Callaghan
Life of this patent
Estimating the term…
Abstract
Devices and techniques for modifying and maintaining a configuration of an occlusion device for the closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. The devices and techniques relate particularly to, but are not limited to, modifying and maintaining a configuration of a PFO occluder made from a polymer tube. The proximal portion of a catch member may be provided with one or more protrusions, or arms, or bump or other raised element for securing the occluder in a partial or fully deployed configuration, either temporarily or permanently.
Claims25
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:
- a proximal side and a distal side;
- an occluder portion movable between the first and second configurations;
- and,
- a catch system for holding the medical device in the second configuration including a catch member with at least one arm disposed near the proximal end of the catch member, such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder while the arm is depressed and to secure the device in the second configuration when the arm protrudes outside an outer diameter of the catch member.
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:
- a proximal side and a distal side;
- an occluder portion movable between the first and second configurations;
- and, a catch system for holding the medical device in the second configuration including a catch member formed from a tube having a transverse, angled slit in the proximal side, such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder while the tube is straight and to secure the device in the second configuration when the tube is bent at the cut.
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:
- a proximal side and a distal side;
- an occluder portion movable between the first and second configurations;
- and,
- a catch system for holding the medical device in the second configuration including a catch member with two matched transverse slits in the proximal side such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder and to secure the device in the second configuration when the portion defined by the two slits forms a protrusion.
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:
- a proximal side and a distal side;
- an occluder portion movable between the first and second configurations;
- and,
- a catch system for holding the medical device in the second configuration including a catch member having a first outer diameter closer to the proximal end and having a second outer diameter further from the proximal end that is smaller than the first outer diameter, such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder and to secure the device in the second configuration when a proximal end of the device catches on the first outer diameter.
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:
- a proximal side and a distal side;
- an occluder portion movable between the first and second configurations;
- and,
- a catch system for holding the medical device in the second configuration including a generally tubular catch member with a proximal portion and a proximal end, having a raised portion around its outer circumference on the proximal portion, tabs axially extending toward the raised portion, and a planar lumen intersecting the proximal end of the catch member, such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder and to temporarily secure the device in an intermediate configuration by compression of the lumen and to secure the device in the second configuration when a proximal end of the device engages the raised portion, the engagement with the raised portion being secured by the tabs.
Dependencies are inferred from the claim text.