Manual release for medical device drive system
AssigneeIntuitive Surgical Operations, Inc.
InventorsNicholas H. Ragosta, Matthew A. Wixey
Life of this patent
Estimating the term…
Abstract
A medical device drive system can include a rotational input, a coupling member engaged with the rotational input, a first gear having an engagement feature sized and shaped to engage with the coupling member, and a second gear coupled with the first gear, the second gear coupled to a movable element. The system can have a first system state and a second system state. In the first system state the coupling member is not engaged with the engagement feature and the first gear rotates without moving the coupling member. In the second system state the coupling member is engaged with the engagement feature of the first gear and rotation of the rotational input turns the coupling member, the first gear, and the second gear to move the movable element.
Claims20
A surgical instrument, comprising:
- a surgical tool;
- a gear operably coupled to the surgical tool;
- a manual input member;
- and
- a coupling member positioned between the manual input member and the gear, the coupling member being movable linearly between a neutral position and a retraction position, the coupling member being operably coupled to the manual input member and the gear in the retraction position, the coupling member being configured to transfer a rotational input from the manual input member to the gear to retract the surgical tool on condition that the coupling member is in the retraction position.
A manual retraction mechanism for a motor-driven surgical instrument, the manual retraction mechanism comprising:
- a manual input member;
- a coupling member positioned to selectively transfer a manual rotational input from the manual input member to a gear of the motor-driven surgical instrument on a condition that the coupling member is in a retraction position, the coupling member having a neutral position in which the coupling member is decoupled from the gear;
- and
- a rotational resistance feature positioned to limit a rotational movement of the coupling member in response to the manual rotational input.
Dependencies are inferred from the claim text.