Adjustable fastening or constricting devices
AssigneeMayo Foundation for Medical Education and Research
InventorMatthew T. Gettman
Life of this patent
Estimating the term…
Abstract
This document relates to methods and materials involved in fastening or constricting. For example, devices (e.g., adjustable vascular pedicle constricting devices) configured to allow a user (e.g., a surgeon) to apply a band element at least partially around a desired structure (e.g., tissue such as a vascular pedicle) in a manner that allows the degree of constriction to be adjustable are provided.
Claims30
A device comprising a pin element, a band element attached to said pin element, and a ring element attached to said band element, wherein said pin element comprises a shaft portion having a proximal end, a distal end, and an axis extending from said proximal end to said distal end, wherein said shaft portion comprises a locking structure and a protrusion, wherein said ring element is configured to be advanced over said distal end along said axis toward said proximal end and is configured to engage said locking structure, wherein said ring element is configured to rotate with respect to said pin element in a first direction, and wherein said ring element is configured to interact with said protrusion in a manner that restricts rotation of said ring element with respect to said pin element in a direction opposite said first direction, wherein said pin element is compressible, and wherein compression of said pin element releases said ring element from said locking structure such that said ring element is removable from said pin element.
A method for using a device to constrict vascular tissue, wherein said device comprises a pin element, a band element attached to said pin element, and a ring element attached to said band element, wherein said pin element comprises a shaft portion having a proximal end, a distal end, and an axis extending from said proximal end to said distal end, wherein said shaft portion comprises a locking structure and a protrusion, wherein said ring element is configured to be advanced over said distal end along said axis toward said proximal end and is configured to engage said locking structure, wherein said ring element is configured to rotate with respect to said pin element in a first direction, and wherein said ring element is configured to interact with said protrusion in a manner that restricts rotation of said ring element with respect to said pin element in a direction opposite said first direction, wherein said method comprises:
- (a) positioning said pin element in proximity with said vascular tissue,
- (b) positioning said ring element around said vascular tissue such that said band element is positioned at least partially about said vascular tissue,
- (c) advancing said ring element over said distal end and along said axis toward said proximal end to a position wherein said ring element engages said locking structure and a closed loop is formed at least partially around said vascular tissue, and
- (d) rotating said ring element in said first direction to shorten the free length of said band element, thereby applying the desired amount of constriction to said vascular tissue.
Dependencies are inferred from the claim text.