| 摘要 |
Hand-held instruments which may be employed to actuate a distally mounted tool by application of radial compressive force about the instrument circumference (i.e., omni-actuatable). In preferred forms, hand-held instruments have a handle and a slide ring assembly attached to the handle which defines a generally V-shaped circumferential channel. The slide ring assembly will have at least one slide ring mounted for longitudinal movements relative to the handle. An actuator member is operatively engaged with the slide ring assembly for moving the slide ring longitudinally relative to the handle in response to a force applied against the actuator member. In preferred embodiments, the actuator member is tubular and includes at least one actuation finger, and more preferably a circumferentially disposed plurality of actuation fingers. The actuator member includes a tubular proximal end section thereof sleeved over the handle so as to be located proximally of the slide ring assembly. The actuation fingers thus extend distally from the tubular proximal end section to (and preferably distally beyond) the slide ring assembly. The actuation fingers are provided a radially inwardly protruding actuator nib which is seated in the generally V-shaped channel of said slide assembly. Thus, in response to a compressive force applied against the actuator fingers, the nib thereof will be depressed radially within the channel thereby causing the slide ring to move longitudinally which in turn, coacts operatively with the distally mounted tool.
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