Apparatus and methods for sealing a vascular puncture
AssigneeAccessClosure, Inc.
InventorsCelso J. Bagaoisan, Juan Domingo, Sieu Duong
Life of this patent
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Abstract
An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
Claims26
An apparatus for sealing a puncture extending through tissue, comprising:
- an elongate member comprising a proximal end, a distal end sized for insertion into a puncture through tissue, and an expandable member on the distal end;
- a cartridge comprising a proximal end, a distal end sized for insertion into the puncture, and a lumen extending between the proximal and distal ends sized for receiving the elongate member therein;
- a sealant disposed within the cartridge lumen adjacent the cartridge distal end;
- a pusher member disposed within the cartridge lumen adjacent to the sealant;
- and
- a tamping device on the cartridge proximal end for biasing the pusher member distally relative to the sealant when activated.
A tamping apparatus for tamping a sealant delivered via a cartridge into a puncture, comprising:
- a housing on the proximal end of the cartridge;
- a slider tube within the housing and coupled to the cartridge, the slider tube being slidable relative to the housing;
- an auto advance spring compressible between the slider tube and a proximal surface of the housing;
- and
- a tamping spring disposed within the slider tube and coupled between a pusher tube disposed within the cartridge adjacent the sealant and a secondary pusher tube.
A method for sealing a puncture extending through tissue to a body lumen, comprising:
- advancing a positioning member through the puncture until an expandable element thereon is disposed within the body lumen;
- expanding the expandable element within the body lumen;
- retracting the positioning member until the expanded positioning element contacts a wall of the body lumen adjacent the puncture;
- advancing a cartridge carrying a sealant and a pusher member into the puncture until a distal end of the cartridge contacts the expandable element;
- advancing a cartridge hub on the cartridge to activate a tamping device, whereupon the pusher member is biased to move distally towards the expandable element to compress the sealant within the puncture towards the expandable element;
- and
- withdrawing the cartridge from the puncture while maintaining the sealant and the pusher member within the puncture.
Dependencies are inferred from the claim text.