CANNULA TIPS, TISSUE ATTACHMENT RINGS, AND METHODS OF DELIVERING AND USING THE SAME
First Claim
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1. A surgical cannula system comprising:
- a cannula having a proximal end, a distal end, and a lumen extending therebetween;
a tissue attachment ring having a lumen extending therethrough, the tissue attachment ring being configured to operably couple to a biological tissue;
a locking mechanism operably coupled to at least one of the cannula or the tissue attachment ring, the locking mechanism having a first locking state and a second locking state,wherein the cannula is configured to move with respect to the tissue attachment ring when the locking mechanism is in the first locking state and the locking mechanism in the second locking state resists movement of the cannula with respect to the tissue attachment ring.
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Abstract
A surgical cannula system. The surgical cannula system includes a cannula having a proximal end, a distal end, and a lumen extending therebetween. A tissue attachment ring, being configured to be coupled to a biological tissue, includes a lumen extending therethrough. A locking mechanism has a first locking state, in which the cannula is configured to move with respect to the tissue attachment ring, and a second locking state, in which movement of the cannula with respect to the tissue attachment ring is resisted.
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Citations
24 Claims
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1. A surgical cannula system comprising:
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a cannula having a proximal end, a distal end, and a lumen extending therebetween; a tissue attachment ring having a lumen extending therethrough, the tissue attachment ring being configured to operably couple to a biological tissue; a locking mechanism operably coupled to at least one of the cannula or the tissue attachment ring, the locking mechanism having a first locking state and a second locking state, wherein the cannula is configured to move with respect to the tissue attachment ring when the locking mechanism is in the first locking state and the locking mechanism in the second locking state resists movement of the cannula with respect to the tissue attachment ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surgical cannula system comprising:
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a cannula having a proximal end, a distal end, and a lumen extending therebetween; a tissue attachment ring having a lumen extending therethrough, the tissue attachment ring configured to operably couple to a biological tissue; and a locking mechanism operably coupled to the tissue attachment ring, wherein the locking mechanism is configured to secure a first position of the cannula extending through and relative to the lumen of the tissue attachment ring. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A cannula delivery system comprising:
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a cannula having a proximal end, a distal end, and an inner surface defining a lumen therethrough; a shaft having a proximal end and a distal end, the shaft being configured to extend through the lumen of the cannula; an obturator tip on the distal end of the shaft, the obturator tip being configured to dilate a puncture in a biological tissue; and an expandable portion located on the shaft and configured to be expanded so as to engage the inner surface of the cannula, wherein when the expandable portion is expanded to engage the inner surface of the proximal end of the cannula, the obturator tip extends away from the distal end of the cannula for dilating the puncture.
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24. A method of securing a cannula to a surgical site of a biological tissue, the method comprising:
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attaching a tissue attachment ring to the surgical site, the tissue attachment ring having a lumen configured to receive the cannula; directing the cannula through the lumen of the tissue attachment ring and the biological tissue at the surgical site; and transitioning a locking mechanism from a first locking state to a second locking state, wherein the locking mechanism in the second locking state secures a position of the cannula relative to the tissue attachment ring.
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Specification