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US 2003/0171770 A1Published application
Distal protection devices having controllable wire motion
Assigneeev3 Inc.
InventorsRichard S. Kusleika, Daniel O. Adams, Kent D. Anderson, Dale Nelson, Jeffrey D. Santer
Life of this patent
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Abstract
A distal protection device for use in a body lumen. The device includes a functional element which may be a filter or an occlusive element. The device includes means for controlling the movement and placement of the functional element along a guidewire. Motion of the guidewire can be independent of the motion of the functional element.
Claims118
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal and proximal ends;
- a functional element carried by the second elongate member, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen;
- and
- means for moveably connecting the first and second elongate members over a range of motion from a first relative position to a second relative position such that when the functional element is deployed in the lumen the first elongate member may be moved without resulting in corresponding movement of the functional element, the distal end of the second elongate member being distal to the distal end of the first elongate member over the entire range of motion.
2 more elements
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends, a distal portion of the first elongate member having a lumen;
- a second elongate member having a distal end and an enlarged proximal end, the lumen of the distal portion of the first elongate member being sized to slideably receive a proximal portion of the second elongate member and having a constricted portion defining an opening which is smaller than the enlarged proximal end of the second elongate member such that the second elongate member is slideably retained in the lumen of the first elongate member;
- and
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen.
1 more element
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal and proximal ends;
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen;
- and
- a sleeve having at least one lumen sized to slideably accommodate the first and second elongate members, the distal end of the first elongate member having a stop positioned distal to the at least one lumen and sized to prevent the distal end of the first elongate member from being withdrawn proximally from the at least one lumen, the second elongate member having a stop positioned proximal to the at least one lumen and sized to prevent the proximal end of the second elongate member from being withdrawn distally from the at least one lumen.
2 more elements
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal and proximal ends;
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen;
- and
- a first eyelet at the distal end of the first elongate member and a second eyelet at the proximal end of the second elongate member, the first eyelet forming a first loop which encircles the second elongate member and the second eyelet forming a second loop which encircles the first elongate member.
2 more elements
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal and proximal ends;
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen, the functional element having a proximal end which is connected to the second elongate member and a distal end connected to a distal slider which is slideable over the second elongate member;
- and
- a loop positioned at the distal end of the first elongate member which encircles the second elongate member between the proximal end of the functional element and the distal slider.
2 more elements
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends and having a tubular body having a lumen with an exterior diameter;
- a second elongate member having distal and proximal ends and having a first region with an exterior diameter less that the interior diameter of the lumen of the tubular body, the first region being slideably received in the lumen of the tubular body;
- and
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen.
1 more element
A distal protection device for use in a body lumen comprising:
- an elongate member having distal and proximal ends and having at least one longitudinal groove having distal and proximal ends;
- and
- a functional element carried by the elongate member, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen, the functional element having at least one projection sized to be accommodated within the groove and configured to be slideable within the groove between the distal and proximal ends of the groove.
A method of making a guidewire system for delivery of a functional element to a desired location in a body lumen comprising:
- providing a first elongate member, a second elongate member and a functional element;
- mounting the functional element on the second elongate member;
- and
- connecting the first elongate member to the second elongate member in a manner that permits the first elongate member to be moved with respect to the second elongate member without moving the second elongate member.
1 more element
A method of filtering emboli from blood flowing through the lumen of a vessel during a percutaneous procedure performed with a treatment device at a treatment site in the vessel comprising:
- providing a distal protection device including a guidewire having first and second elongate members and a filter carried by the second elongate member, the filter being expandable from a delivery configuration when the filter is restrained to an expanded deployed configuration when the filter is unrestrained, the first elongate member being connected to the second elongate member in a manner that permits the first elongate member to be moved with respect to the second elongate member over a range of motion without moving the second elongate member;
- introducing the guidewire and filter in its delivery configuration into the lumen of the vessel;
- advancing the guidewire through the vessel until the filter is positioned at a desired location distal to the treatment site, at least a proximal portion of the first elongate member extending outside of the vessel;
- removing the restraint on the filter to expand the filter within the lumen of the vessel to its expanded deployed configuration;
- advancing the treatment device over the guidewire to the treatment site while holding the first elongate member;
- performing the percutaneous procedure at the treatment site with the treatment device;
- and
- filtering emboli from blood during the percutaneous procedure with the filter.
5 more elements
A method of occluding blood flow through the lumen of a vessel during a percutaneous procedure performed with a treatment device at a treatment site in the vessel comprising:
- providing a distal protection device including a guidewire having first and second elongate members and an occlusive device carried by the second elongate member, the occlusive device being expandable from a delivery configuration to a deployed configuration, the first elongate member being connected to the second elongate member in a manner that permits the first elongate member to be moved with respect to the second elongate member over a range of motion without moving the second elongate member;
- introducing the guidewire and the occlusive device in its delivery configuration into the lumen of the vessel;
- advancing the guidewire through the vessel until the occlusive device is positioned at a desired location distal to the treatment site, at least a proximal portion of the first elongate member extending outside of the vessel;
- expanding the occlusive device to its deployed configuration to occlude the lumen of the vessel;
- advancing the treatment device over the guidewire to the treatment site while holding the first elongate member;
- and
- performing the percutaneous procedure at the treatment site with the treatment device while the lumen of the vessel is occluded.
4 more elements
A distal protection device for use in a body lumen comprising:
- an elongate member having distal and proximal ends and at least one stop spaced proximally of the distal end;
- a functional element having a first slider disposed for translation along the elongate member between the stop and proximal end, the stop limiting translation of the slider in a distal direction;
- and
- means for gradually increasing the resistance between the slider and stop as the stop is moved proximally toward the slider.
1 more element
A distal protection device for use in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal and proximal ends;
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen;
- and
- means for moveably connecting the filter and the first elongate member over a range of motion from a first relative position when the connecting means is in a relaxed state to a second relative position when the connecting means is in an expanded state such that resistance to movement between the filter and the first elongate member increases over the range of motion as the second relative position is approached.
2 more elements
A distal protection device for us e in a body lumen comprising:
- a first elongate member having distal and proximal ends;
- a second elongate member having distal an d proximal ends;
- a functional element carried by the second elongate element, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen;
- and
- means for locking the first elongate member to the second elongate member, the locking means having a locked position where the relative positions of the first and second elongate members are locked and an unlocked position where the first elongate member can be moved over a range of motion from a first relative position to a second relative position without resulting in movement of the second elongate member.
2 more elements
A method of filtering emboli from blood flowing through the lumen of a vessel during a percutaneous procedure performed with a treatment device at a treatment site in the vessel comprising:
- providing a distal protection device including a guidewire having first and second elongate members and a filter carried by the second elongate member, the filter being expandable from a delivery configuration when the filter is restrained to an expanded deployed configuration when the filter is unrestrained;
- locking the first elongate member to the second elongate member so that their relative positions are fixed;
- introducing the guidewire and filter in its delivery configuration into the lumen of the vessel;
- advancing the guidewire through the vessel until the filter is positioned at a desired location distal to the treatment site;
- removing the restraint on the filter to expand the filter within the lumen of the vessel to its expanded deployed configuration;
- unlocking the first elongate member from the second elongate member so that the first elongate member is moveable with respect to the second elongate member over a range of motion from a first relative position to a second relative position without resulting in movement of the second elongate member;
- advancing the treatment device over the guidewire to the treatment site after the first elongate member has been unlocked from the second elongate member;
- performing the percutaneous procedure at the treatment site with the treatment device;
- and
- filtering emboli from blood during the percutaneous procedure with the filter.
7 more elements
A method of occluding blood flow through the lumen of a vessel during a percutaneous procedure performed with a treatment device at a treatment site in the vessel comprising:
- providing a distal protection device including a guidewire having first and second elongate members and an occlusive device carried by the second elongate member, the occlusive device being expandable from a delivery configuration to an expanded deployed configuration;
- locking the first elongate member to the second elongate member so that their relative positions are fixed;
- introducing the guidewire and occlusive device in its delivery configuration into the lumen of the vessel;
- advancing the guidewire through the vessel until the occlusive device is positioned at a desired location distal to the treatment site;
- expanding the occlusive device to its expanded deployed configuration to occlude the lumen of the vessel;
- unlocking the first elongate member from the second elongate member so that the first elongate member is moveable with respect to the second elongate member over a range of motion from a first relative position to a second relative position without resulting in movement of the second elongate member;
- advancing the treatment device over the guidewire to the treatment site after the first elongate member has been unlocked from the second elongate member;
- and
- performing the percutaneous procedure at the treatment site with the treatment device while the lumen of the vessel is occluded.
6 more elements
Dependencies are inferred from the claim text.