US 6,096,034 A · Aneurysm closure device assembly

Abstract

This is an artificial occlusion kit for implanting and retaining an artificial occlusion device in a body space adjacent to and extending from a body lumen in a mammal. The includes at least one occlusion device and a retaining device for blocking the migration of the occlusion device out of the occlusion site. The retaining device is radially expandable at a retaining site adjacent the body space to be occluded to a diameter that is sufficient to engage the body lumen wall at the retaining site and form a barrier across the entrance zone of the body space to be occluded. The expanded retaining device also forms a lumen for flow through body lumen at the retaining site. The retaining device may be placed in the body temporarily or permanently. At least one semi-penetrable space may also be provided in the retaining device, allowing introduction of occlusion devices into the body space to be occluded, but preventing subsequent migration of the occlusion devices out of the body space. This semi-penetrable space may also be distensible to allow for delivery of occlusion devices therethrough. An introducer wire or a tapered-tip delivery catheter may be used to distend the distensible space and deliver the occlusion devices. The retaining device structure may further include a radiopaque metal wire wound into a primary helix over an inner core member made of a superelastic alloy of nickel and titanium.

Claims18

Dependent claims

An artificial occlusion kit for implanting and retaining an artificial occlusion device in a body space to be occluded adjacent to and extending from a body lumen in a mammal, comprising:

at least one occlusion device adapted for filling at least a portion of the body space;
and
a retaining device assembly having a retaining device adapted to be delivered at a retaining site in the body lumen adjacent to the body space, said retaining device being removed from the body lumen after said at least one occlusion device is deployed, said retaining device having two opposite ends and forming a first shape with a first outer diameter, said retaining device being expandable to a second shape having a second outer diameter larger than said first outer diameter and sufficient to engage a body lumen wall at the retaining site such that a barrier is formed against migration of said at least one occlusion device out of the body space and into the body lumen, said second shape also defining at least one semi-penetrable space between the body space to be occluded and the adjacent body lumen wherein said at least one occlusion device forms a first occlusion device shape that is advanceable through said semi-penetrable space, and said at least one occlusion device is also expandable to a second occlusion device shape that is not advanceable through said semi-penetrable space, said second shape also forming a lumen along a longitudinal axis sufficient to allow flow of fluids therethrough.

An artificial occlusion kit for implanting and retaining an artificial occlusion device in a body space to be occluded adjacent to and extending from a body lumen in a mammal, comprising:

at least one occlusion device adapted for filling at least a portion of the body space;
and
a retaining device assembly having a retaining device adapted to be delivered at a retaining site in the body lumen adjacent to the body space, said retaining device being removed from the body lumen after said at least one occlusion device is deployed, said retaining device having two opposite ends and forming a first shape with a first outer diameter, said retaining device being expandable to a second shape having a second outer diameter larger than said first outer diameter and sufficient to engage a body lumen wall at the retaining site such that a barrier is formed against migration of said at least one occlusion device out of the body space and into the body lumen, said second shape also forming a lumen along a longitudinal axis sufficient to allow flow of fluids therethrough wherein said retaining device assembly further comprises a distal end having a distal diameter smaller than said body lumen and said second outer diameter.

Dependencies are inferred from the claim text.

Aneurysm closure device assembly

Life of this patent

Aneurysm closure device assembly

Life of this patent

Abstract

Claims18