Apparatus and methods for sealing a vascular puncture
First Claim
Patent Images
1. A method for sealing a puncture extending through tissue to a body lumen, comprising:
- introducing an introducer sheath into the puncture;
advancing a tubular member carrying a sealant therein into the introducer sheath;
engaging a plurality of outwardly projecting barbs circumferentially disposed about a distal tip of a tubular extension on the tubular member with a proximal end of the introducer sheath to couple the introducer sheath to the tubular member; and
retracting the tubular member at least partially from the puncture, thereby retracting the introducer sheath with the tubular member at least partially from the puncture and exposing the sealant within the puncture distally beyond the introducer sheath,wherein the step of engaging comprises passing the distal tip of the tubular extension and the plurality of barbs beyond abutment features disposed on the introducer sheath.
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Accused Products
Abstract
Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
219 Citations
14 Claims
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1. A method for sealing a puncture extending through tissue to a body lumen, comprising:
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introducing an introducer sheath into the puncture; advancing a tubular member carrying a sealant therein into the introducer sheath; engaging a plurality of outwardly projecting barbs circumferentially disposed about a distal tip of a tubular extension on the tubular member with a proximal end of the introducer sheath to couple the introducer sheath to the tubular member; and retracting the tubular member at least partially from the puncture, thereby retracting the introducer sheath with the tubular member at least partially from the puncture and exposing the sealant within the puncture distally beyond the introducer sheath, wherein the step of engaging comprises passing the distal tip of the tubular extension and the plurality of barbs beyond abutment features disposed on the introducer sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for sealing a puncture extending through tissue to a body lumen, comprising:
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introducing an introducer sheath into the puncture; advancing a tubular member carrying a sealant therein into the introducer sheath; engaging a plurality of outwardly projecting barbs circumferentially disposed about the tubular member with a proximal end of the introducer sheath to couple the introducer sheath to the tubular member; and retracting the tubular member at least partially from the puncture, thereby retracting the introducer sheath with the tubular member at least partially from the puncture and exposing the sealant within the puncture distally beyond the introducer sheath, wherein the step of engaging comprises passing the plurality of barbs beyond abutment features disposed on the introducer sheath, wherein, in the engaging step, a locking element is disposed about the tubular member, and the locking element comprises the plurality of barbs to engage with the introducer sheath, wherein the locking element comprises a sleeve disposed on the tubular member and an extension extending from the sleeve that is inserted into the introducer sheath proximal end when the tubular member is advanced into the introducer sheath, and wherein the extension is expandable from a contracted condition to accommodate insertion into the introducer sheath and an expanded condition when the tubular member is advanced distally into the introducer sheath to prevent subsequent removal of the extension from the introducer sheath.
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9. A method for sealing a puncture extending through tissue to a body lumen, comprising:
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introducing an introducer sheath into the puncture; advancing a tubular member carrying a sealant therein into the introducer sheath; engaging a plurality of outwardly projecting barbs circumferentially disposed about the tubular member with a proximal end of the introducer sheath to couple the introducer sheath to the tubular member; and retracting the tubular member at least partially from the puncture, thereby retracting the introducer sheath with the tubular member at least partially from the puncture and exposing the sealant within the puncture distally beyond the introducer sheath, wherein, in the engaging step, a locking element is disposed about the tubular member, and the locking element comprises the plurality of barbs to engage with the introducer sheath, wherein the locking element is a tubular sleeve, and wherein the sleeve is freely slidable when not engaged with the introducer sheath.
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10. A method for sealing a puncture extending through tissue to a body lumen, comprising:
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introducing an introducer sheath into the puncture; advancing a tubular member carrying a sealant therein into a proximal end of the introducer sheath such that a plurality of outwardly projecting barbs circumferentially disposed about the tubular member are compressed radially inwardly as the barbs pass through an abutment in the introducer sheath proximal end and resiliently expand beyond the abutment, thereby engaging the expanded barbs with the abutment to couple the introducer sheath to the tubular member; withdrawing a positioning element to contact the vessel wall prior to the retracting step; and after the withdrawing step, retracting the tubular member at least partially from the puncture, thereby retracting the introducer sheath with the tubular member at least partially from the puncture and exposing the sealant within the puncture distally beyond the introducer sheath; wherein the plurality of outwardly extending barbs are on a distal tip of a tubular extension on the tubular member, and wherein the distal tip of the tubular extension and the plurality of barbs pass beyond the abutment when tubular member is advanced into the introducer sheath. - View Dependent Claims (11, 12, 13, 14)
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Specification