Intravascular filter with bioabsorbable centering element
First Claim
Patent Images
1. An intravascular filter, comprising:
- a non-biodegradable apical head;
a plurality of non-biodegradable filter legs each having a proximal section and a distal section, the proximal section of each filter leg being secured to the apical head, each distal section having a distal end, the plurality of distal ends defining a base; and
a bioabsorbable centering element for centering the intravascular filter within a body vessel, the centering element including one or more biodegradable support members, the centering element having a first state prior to bioabsorption configured to exert an outwardly directed force on the wall of the body vessel when deployed therein, and a second state subsequent to bioabsorption configured to not exert the outwardly directed force.
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Abstract
Bioabsorbable centering elements for use in centering an implantable intravascular device within a body vessel are disclosed. The bioabsorbable centering element may include a number of support members configured to self-expand and engage the wall of the vessel when deployed. The support members may be formed from a biodegradable material adapted to degrade in vivo within a pre-determined period of time.
294 Citations
25 Claims
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1. An intravascular filter, comprising:
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a non-biodegradable apical head; a plurality of non-biodegradable filter legs each having a proximal section and a distal section, the proximal section of each filter leg being secured to the apical head, each distal section having a distal end, the plurality of distal ends defining a base; and a bioabsorbable centering element for centering the intravascular filter within a body vessel, the centering element including one or more biodegradable support members, the centering element having a first state prior to bioabsorption configured to exert an outwardly directed force on the wall of the body vessel when deployed therein, and a second state subsequent to bioabsorption configured to not exert the outwardly directed force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An intravascular filter, comprising:
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a non-biodegradable apical head; a plurality of non-biodegradable filter legs each having a proximal section and a distal section, the proximal section of each filter leg being secured to the apical head, each distal section having a distal end, the plurality of distal ends defining a base; and a bioabsorbable centering element for centering the intravascular filter within a body vessel, the bioabsorbable centering element including one or more biodegradable support members each having a first end secured to the filter leg, and a second end the centering element having a first state prior to bioabsorption configured to self-expand and exert an outwardly directed force on the wall of the body vessel when deployed therein, and a second state subsequent to bioabsorption configured to not exert the outwardly directed force. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An intravascular filter, comprising:
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a non-biodegradable apical head; a plurality of non-biodegradable filter legs each having a proximal section and a distal section, the proximal section of each filter leg being secured to the apical head; and a bioabsorbable centering element for centering the intravascular filter within a body vessel, the bioabsorbable centering element including one or more biodegradable support members each having a first end secured to a biodegradable cap disposed about the apical head, and a second end configured to self-expand and exert an outwardly directed force on the wall of the body vessel when deployed therein.
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Specification