Abstract: The present invention relates to a fully integrated sterilizable one time use disposable tissue visualization device and methods for using such devices. Preferred embodiments of the invention facilitate the visualization of an internal tissue site while causing a minimum of damage to the surrounding tissue. Further preferred embodiments may allow for the delivery of fluids and other treatment to an internal tissue site.

Abstract: A device for closing an aperture in a vessel wall comprising a covering member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture. Two curved legs are provided having portions positionable external of the vessel and having first and second loop portions positioned external to the internal region of the vessel wall to contact tissue.

Abstract: The present provides a removable vessel filter comprising a first and second filtering portion and a first and second anchoring portion, wherein a transverse dimension of the first filtering portion in an expanded configuration is less than a transverse dimension of the first anchoring portion in an expanded configuration, and a transverse dimension of the second filtering portion is less than a transverse dimension of the second anchoring portion. The first and second filtering portions are positioned closer to each other than the first and second anchoring portions, and the anchoring portions being formed on first and second opposite portions of the vessel filter. The vessel filter is removable from a vessel wall by engagement of either the first filtering portion or the second filtering portion.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture. The elongated member has a dimension to prevent egress of fluid through the aperture. A material forms two curved legs having ends positionable external of the vessel. The legs curve in different directions and a retention portion is formed in the material to retain the legs during placement of the elongated member inside the vessel.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture. The elongated member has a dimension to prevent egress of fluid through the aperture. A material forms two curved legs having ends positionable external of the vessel. The legs curve in different directions and a retention portion is formed in the material to retain the legs during placement of the elongated member inside the vessel.

Abstract: A vessel filter comprising a mounting section having first and second ends and a first and second filtering section. The filter is movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. In the expanded position a first end of the first filtering section converges to form a first converging region and a second end of the second filtering section converges to form a second converging region. The first converging region is positioned radially and axially inwardly of the first end of the mounting section and the second converging region is positioned radially and axially inwardly of the second end of the mounting section.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member positionable inside the vessel against an internal opening of the aperture and having a dimension exceeding a dimension of the internal opening of the aperture to prevent egress of fluid through the aperture. At least two curved legs are coupled to the elongated member, curve in a direction substantially perpendicular to the longitudinal axis of the elongated member, and are positionable outside the vessel to help retain the elongated member in position the legs.

Abstract: A device for closing an aperture in a vessel wall comprising a covering member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture. Two curved legs are provided having portions positionable external of the vessel and curving in different directions. At least one retention member is positioned between the covering member and curved legs and positionable external of the vessel.

Abstract: A vessel filter comprising first and second filtering portions and first and second anchoring portions. A transverse dimension of the first filtering portion in an expanded configuration is less than a transverse dimension of the anchoring portion in an expanded configuration, and a transverse dimension of the second filtering portion is less than a transverse dimension of the second anchoring portion. The first and second filtering portions are positioned closer to each other than the first and second anchoring portions, and the anchoring portions are formed on first and second opposite portions of the vessel filter. Preferably a sleeve is positioned between the first and second filter portions.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture. The elongated member has a dimension to prevent egress of fluid through the aperture. A material forms two curved legs having ends positionable external of the vessel. The legs curve in different directions and a retention portion is formed in the material to retain the legs during placement of the elongated member inside the vessel.

Abstract: A cartridge for holding a vascular device and connectable to a component of a delivery system comprising a housing having a first end and a second end, and an engagement member movable to a first engageable position to engage the component of a delivery system to connect the cartridge to the component in a first orientation. A control member is preferably operatively associated with the engagement member to move the engagement member to the first engageable position.

Abstract: A cartridge for holding a vessel filter and connectable to a component of a delivery system comprising a housing having a first end and a second end, and an engagement member movable to a first engageable position to engage the component of a delivery system to connect the cartridge to the component in a first orientation. A control member is preferably operatively associated with the engagement member to move the engagement member to the first engageable position.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture. The elongated member has a dimension to prevent egress of fluid through the aperture. A material forms two curved legs having ends positionable external of the vessel. The legs curve in different directions and a retention portion is formed in the material to retain the legs during placement of the elongated member inside the vessel.

Abstract: A device for closing an aperture in a vessel wall comprising a covering member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture. Two curved legs are provided having portions positionable external of the vessel and having first and second loop portions positioned external to the internal region of the vessel wall to contact tissue.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member positionable inside the vessel against an internal opening of the aperture and having a dimension exceeding a dimension of the internal opening of the aperture to prevent egress of fluid through the aperture, and at least two curved legs positionable outside the vessel to help retain the elongated member in position.

Abstract: A device for closing an aperture in a vessel wall comprising an elongated member positionable inside the vessel against an internal opening of the aperture and having a dimension exceeding a dimension of the internal opening of the aperture to prevent egress of fluid through the aperture. At least two curved legs are coupled to the elongated member, curve in a direction substantially perpendicular to the longitudinal axis of the elongated member, and are positionable outside the vessel to help retain the elongated member in position the legs.

Abstract: A vein filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region of the filter has a mounting portion for mounting the vessel filter within the vessel and a first filter portion converging to form a first converging region at a first end portion, positioned radially and axially inwardly of an end of the mounting portion. The second region of the filter has a transverse dimension decreasing toward a second end portion opposite the first end portion to form a second filter portion at the second end portion on the opposing side of the filter from the first filter portion.

Abstract: A vascular system comprising a balloon catheter having an elongated shaft and an expandable balloon. A vascular device is mounted over the expandable balloon and composed of shape memory material and has a collapsed position and a memorized position. The vascular device is expandable to an expanded position, to engage the vessel walls and returnable substantially to the memorized position to bring the walls radially inwardly.

Abstract: A method of locating a vessel lumen to enable placement of a vascular hole closure device comprising the steps of providing a syringe containing a fluid therein, connecting the syringe to an elongated instrument, exerting a force on the syringe plunger as it is inserted through the tissue towards the vessel wall, and detecting movement of the syringe to eject the fluid to determine entry of the elongated instrument into the vessel lumen.

Abstract: A vascular device movable from a collapsed insertion position to a first expanded position having a first diameter and further movable to a second expanded position having a second diameter larger than the first diameter. A plurality of vessel engaging members extend outwardly from the device for securing the internal wall of a vessel upon expansion of the device to the second expanded position, The vessel engaging members pull the internal wall of the vessel towards radially inwardly upon movement of the device from the second expanded position toward the first expanded position having a third diameter greater than the first diameter and less than the second diameter.