TISSUE ACQUISITION DEVICES AND METHODS
First Claim
1. A tissue acquisition device, comprising:
- an acquisition head including a vacuum chamber positionable adjacent target tissue to draw at least a portion of the target tissue into the vacuum chamber; and
at least one retention element coupled to the acquisition head, the retention element moveable from a first position to a second position, the retention element in the second position positioned to retain the target tissue in contact with the acquisition head.
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Accused Products
Abstract
A device and method for acquiring tissue in preparation for tissue fastening includes an acquisition head having a pair of vacuum chambers. A vacuum source is used to draw a tissue into a first one of the chambers, and a grasper is extended into the chamber to engage the tissue, allowing vacuum pressure to be released without loss of the tissue from the chamber. Tissue is subsequently drawn into an adjacent chamber and then similarly engaged in the chamber using a second grasper. The two or more sections of acquired tissue may be held in complete or partial alignment with one another as staples or other fasteners are driven through the pinches, thus forming a four-layer tissue plication.
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Citations
25 Claims
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1. A tissue acquisition device, comprising:
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an acquisition head including a vacuum chamber positionable adjacent target tissue to draw at least a portion of the target tissue into the vacuum chamber; and at least one retention element coupled to the acquisition head, the retention element moveable from a first position to a second position, the retention element in the second position positioned to retain the target tissue in contact with the acquisition head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tissue attachment system, comprising:
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a tissue acquisition device comprising an acquisition head having at least one vacuum chamber fluidly attachable to a vacuum source, a first retention element moveable between a first position and a second position, the first retention element in the second position positioned to retain first tissue drawn at least partially into the vacuum chamber; a second retention element moveable between a first position and a second position, the second retention element in the second position positioned to retain second tissue drawn at least partially into the vacuum chamber; and a tissue fastening device positionable to advance at least one tissue fastener through the first and second tissue retained by the first and second retention elements. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of acquiring target tissue, comprising:
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providing an acquisition device having at least one vacuum chamber and at least one retention element; drawing a portion of the target tissue into the at least one vacuum chamber and then moving the retention element into contact with target tissue to retain the target tissue in contact with the acquisition head. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification