Surgical end effectors
AssigneeCovidien LP
InventorsArpan Desai, Paul C. DiCesare, Danial Ferreira, Brandon Michael Zalewski
Life of this patent
Estimating the term…
Abstract
An end effector for use with a surgical device is provided. The end effector includes a drive assembly, a driver, a needle assembly and a biasing element. The driver is disposed in mechanical cooperation with the drive assembly. Rotation of the drive assembly in a first direction causes distal translation of the driver with respect to the drive assembly. The needle assembly is disposed in mechanical cooperation with the driver. Distal translation of the driver causes a corresponding distal translation of the needle assembly. The biasing element is disposed in mechanical cooperation with the needle assembly and is configured to bias the needle assembly proximally.
Claims22
(canceled)
A surgical instrument, comprising:
- a drive motor configured to connect to a source of power;
- a drive assembly disposed in mechanical cooperation with the drive motor and defining a longitudinal axis;
- a helix assembly disposed in mechanical cooperation with the drive assembly, the helix assembly including a helical thread;
- and
- an outer tube disposed in mechanical cooperation with the helix assembly, the outer tube including a helical groove configured to engage the helical thread of the helix assembly,
- wherein actuation of the drive motor causes rotation of the drive assembly about the longitudinal axis relative to the outer tube, and causes rotation of the helix assembly about the longitudinal axis relative to the outer tube.
A surgical instrument, comprising:
- a drive motor configured to connect to a source of power;
- a drive assembly disposed in mechanical cooperation with the drive motor and defining a longitudinal axis;
- a needle assembly including a pin, the needle assembly disposed in mechanical cooperation with the drive assembly;
- a helix assembly disposed in mechanical cooperation with the needle assembly, the helix assembly including a longitudinal slot configured to slidingly engage the pin of the needle assembly,
- wherein actuation of the drive motor causes rotation of the drive assembly about the longitudinal axis, causes rotation of the helix assembly about the longitudinal axis, and causes the needle assembly to move relative to the helix assembly from a first position where the pin is out of alignment with the longitudinal slot of the helix assembly, to a second position where the pin is aligned with the longitudinal slot of the helix assembly.
A surgical kit, comprising:
- a drive motor configured to connect to a source of power;
- a first end effector assembly including a first drive assembly, an outer tube, and a needle assembly, the first drive assembly configured to selectively engage the drive motor, the needle assembly disposed at least partially within the outer tube and in mechanical cooperation with the first drive assembly, wherein when the first drive assembly is engaged with the drive motor, actuation of the drive motor is configured to move the needle assembly distally relative to the outer tube of the first end effector assembly;
- and
- a second end effector assembly including a second drive assembly and an outer tube, the second drive assembly configured to selectively engage the drive motor, the outer tube configured to house at least one surgical tack at least partially therein, wherein when the second drive assembly is engaged with the drive motor, actuation of the drive motor is configured to move the at least one surgical tack housed at least partially within the outer tube distally relative to the outer tube of the second end effector assembly.
Dependencies are inferred from the claim text.