Multiple member interconnect for surgical instrument and absorbable screw fastener
AssigneeCovidien LP
InventorEarl M. Zergiebel
Life of this patent
Estimating the term…
Abstract
An absorbable screw fastener and a method of firing with an applicator capable of applying a surgical fastener to tissue in order to form tissue connection to secure objects to tissue, the fastener including a body portion having a helical thread, a head portion disposed at the proximal end of the body portion. The head portion includes a driver receiving configuration on its outer surface. The screw fastener further includes a cannulated center lumen with an opening extending from the head portion through the longitudinal length of the body portion.
Claims20
An end effector for a screw fastener instrument, the end effector comprising:
- a cam spiral driver;
- an inner tube assembly that supports an outer tube;
- and
- a cam spiral sub-assembly disposed in the inner tube assembly and operatively connected to the cam spiral driver, the cam spiral sub-assembly configured to rotate and translate in response to rotation of the cam spiral driver, wherein rotational and translational movement of the cam spiral sub-assembly causes at least one screw fastener to dispense from the outer tube.
A screw fastener instrument, comprising:
- a handle;
- an elongated tubular portion extending from the handle;
- and
- an end effector secured to the elongated tubular body portion, the end effector including:
- a cam spiral driver supported on the elongated tubular portion;
- an inner tube assembly that supports an outer tube;
- and
- a cam spiral sub-assembly disposed in the inner tube assembly and operatively connected to the cam spiral driver, the cam spiral sub-assembly configured to rotate and translate in response to rotation of the cam spiral driver, wherein rotational and translational movement of the cam spiral sub-assembly causes at least one screw fastener to dispense from the outer tube.
Dependencies are inferred from the claim text.