Clip applier having improved hemostasis and methods of use
First Claim
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1. A method of closing an opening in a body lumen of a subject, the method comprising:
- providing a medical device having an expandable hemostasis member;
locating the body lumen with a locator;
expanding the expandable hemostasis member to conform to the wall of the body lumen so as to create hemostasis across the opening while the expandable hemostasis member is expanded; and
deploying a closure element having a plurality of tines tapering toward a distal end into the body lumen so as to close the opening and create hemostasis while the closure element is deployed.
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Abstract
A hemostasis assembly having a selectively expandable hemostasis member can be used with a medical device and in a method for delivering a closure element through tissue and into an opening formed in, or adjacent to, a wall of a blood vessel or other body lumen of any size while maintaining or improving hemostasis. The medical device and method of use utilizes such an expandable hemostasis member to maintain or improve hemostasis throughout a medical procedure for closing and/or sealing openings through tissues and/or blood vessels.
917 Citations
14 Claims
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1. A method of closing an opening in a body lumen of a subject, the method comprising:
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providing a medical device having an expandable hemostasis member; locating the body lumen with a locator; expanding the expandable hemostasis member to conform to the wall of the body lumen so as to create hemostasis across the opening while the expandable hemostasis member is expanded; and deploying a closure element having a plurality of tines tapering toward a distal end into the body lumen so as to close the opening and create hemostasis while the closure element is deployed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of closing an opening in a side of a body lumen of a subject, the method comprising:
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providing a medical device for delivering a closure element to a wall of an opening formed in a body lumen with improved hemostasis, the medical device comprising; a locator assembly having a distal locator configured to extend through tissue into the opening and expand to selectively engage an internal surface of the body lumen adjacent to the opening so as to provide a desired position of the medical device relative to the body lumen; a hemostasis assembly associated with the locator assembly, the hemostasis assembly having a selectively expandable hemostasis member on a distal end configured to extend to the opening when the locator assembly is in contact with the internal surface of the body lumen, the expandable hemostasis member being configured to expand laterally when disposed at the opening so as to provide hemostasis; and a carrier assembly being slidably associated with the locator assembly and hemostasis assembly, the carrier assembly having a carrier member supporting the closure element and a cover member retaining the closure element within the carrier assembly, the closure element including a plurality of tissue piercing tines tapering toward a distal end, the carrier assembly being configured to position the closure element adjacent to the opening and being configured to distally deploy the closure element into tissue surrounding the opening of the body lumen such that the body lumen is drawn substantially closed; locating the body lumen with the distal locator; expanding the expandable hemostasis member to conform to the wall of the body lumen so as to create hemostasis across the opening while the expandable hemostasis member is expanded; and deploying the closure element into the body lumen so as to close the opening and create hemostasis while the closure element is deployed.
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Specification