Abstract: Various exemplary methods and devices for actuating surgical instruments are provided. In general, a surgical device can include one or more actuation shafts configured to facilitate actuation of the device. In an exemplary embodiment, the device can include four actuation shafts, two actuation shafts to facilitate articulation of the device, one actuation shaft to facilitate opening and closing of jaws at a distal end of the device, and one actuation shaft to facilitate moving a cutting element of the device. In an exemplary embodiment, each of the one or more actuation shafts can include a distal elongate member and a proximal elongate member having a proximal end attached to a distal end of the distal elongate member. The proximal elongate member can be rigid, and the distal elongate member can be flexible.

Abstract: A field-replaceable unit is reversibly secured in place using two captive fasteners. Each fastener includes a telescoping knob that rotates 180 degrees in a first direction to engage a latch mechanism and rotates 180 degrees in the opposite direction to disengage the latch mechanism. The knob automatically extends when the latch mechanism is disengaged. The knob alternately extends and retracts in response to being successively pressed when the latch mechanism is engaged. The knob has two cutaways formed along outside edges to facilitate a two-finger grip for knob rotation and pulling the unit out of another module. A circular groove centered on an axis of rotation of the knob has a contrasting coloration and provides a visual and tactile indication of know location. A nub indicates rotational position of the knob.

Abstract: A remote fish bite indicator for eliminating the need for the user to continually watch the tip-ups to know when a fish is biting.

Abstract: A remote fish bite indicator for eliminating the need for the user to continually watch the tip-ups to know when a fish is biting.