Patent ID: 11883090
Assignee: GYRUS ACMI, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An apparatus comprising:
an elongated implement movable along an axis;
a rotatable actuator operably coupled with a proximal end of the implement to motivate the implement to move along the axis in response to rotation of the rotatable actuator; and
a guide operably coupled with rotatable actuator, wherein the guide defines a generally helical channel around the axis to direct movement of a rotatable actuator, and wherein a pitch of the helical channel is varied along a length of the guide to reduce an axial distance of travel of the actuator along the axis per unit of rotation of the rotatable actuator as the rotatable actuator travels distally relative to the guide,
wherein the pitch is varied to reduce a distance traveled by the secondary actuator along the axis per unit of rotation of the secondary actuator at a position at which the secondary electrode is anticipated to exert an increased resistance on the secondary actuator to movement along the axis, and
wherein the pitch of the helical channel is varied to increase the movement of the secondary actuator along the axis at a second position where the secondary electrode is anticipated to exert a reduced resistance on the secondary actuator to movement along the axis.