Extracting device for surgical fasteners
AssigneeI.B.I. Israel Biomedical Innovations Ltd.
InventorsEitan HOD, Gilad HEFTMAN
Life of this patent
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Abstract
Provided is a device for extracting from a body tissue surgical fasteners having a crown, a baseplate and prongs extending from the crown to the baseplate. The device includes a shaft having a lumen with a cross-sectional shape and dimensions to allow the crown to enter the lumen while preventing the baseplate from entering the lumen. Also provided is a method for extracting from a body tissue a fastener having a crown, a baseplate and prongs extending from the crown to the baseplate. According to the method of the invention, the crown of a fastener is introduced into the hollow portion of the device of the invention while preventing the advancement of the baseplate by the distal part of the hollow shaft.
Claims13
1-8. (canceled)
A device for extracting a surgical fastener, the surgical fastener having a crown, a baseplate and prongs extending from the crown, and a filament passing between the crown and the baseplate, the device comprising:
- (a) a shaft having a proximal end and a distal end;
- (b) a hollow cylindrical element located at the distal end of the shaft and defining a lumen, the cylindrical element having a longitudinal groove on an external surface of the cylindrical element, said hollow cylindrical element having an inner diameter greater than a diameter of the crown and less than a diameter of the base plate to allow the crown to enter the lumen while preventing the baseplate from entering the lumen;
- and
- (c) a ring element incompletely surrounding a circumference of said hollow cylindrical element, the ring element being rotatable about said hollow cylindrical element between a position in which a gap in the ring element is in register with the longitudinal groove of said hollow cylindrical element, and a position in which the gap is not in register with the longitudinal groove.
A method for extracting a deployed surgical fastener from a body tissue, the surgical fastener having a crown, a baseplate and prongs extending from the crown, and a filament passing between the crown and the baseplate, the method comprising:
- (d) providing an extracting device, the extracting device comprising:
- (i) a hollow cylindrical element located at the distal end of the shaft, said hollow cylindrical element having a longitudinal groove on an external surface of said hollow cylindrical element, the hollow cylindrical element having an inner diameter greater than a diameter of the crown and less than a diameter of the base plate;
- and
- (ii) a ring element incompletely surrounding a circumference of said hollow cylindrical element, the ring element being rotatable about the cylindrical element between a position in which a gap in the ring element is in register with the longitudinal groove of said hollow cylindrical element, and a position in which the gap is not in register with the longitudinal groove;
- (e) bringing the ring element to its position in which the gap is in register with the longitudinal groove;
- (f) inserting the filament into the longitudinal groove, the filament being immobilized between the crown and the baseplate of the fastener in its deployed configuration;
- (g) bringing the ring element to its position in which the gap is not in register with the longitudinal groove;
- and
- (h) pulling on the filament bringing the crown into the interior of said hollow cylindrical element, while preventing the baseplate from entering said interior.
Dependencies are inferred from the claim text.