Rotation knobs for surgical instruments
First Claim
1. A surgical instrument, comprising:
- a housing having a shaft extending distally therefrom and defining a longitudinal axis, the housing including a nose disposed at a distal end thereof, the nose including a neck extending distally from the housing and a base disposed at a distal end of the neck, the base defining a diameter greater than a diameter of the neck; and
a rotation knob having a distal end defining a first aperture and a proximal end defining at least one second aperture, the first and second apertures cooperating to define a lumen extending longitudinally through the rotation knob that is configured to receive the shaft, the rotation knob flexible between an at-rest position and a flexed position, wherein, in the flexed position, the diameter of the second aperture is expanded from a first diameter to a second, larger diameter to permit passage of the base of the nose through the second aperture and into an interior of the rotation knob, and wherein, in the at-rest position, the second aperture defines the first diameter to rotatably engage the proximal end of the rotation knob about the nose with the shaft extending through the lumen of the rotation knob.
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Accused Products
Abstract
A surgical instrument includes a housing having a shaft extending therefrom. The housing includes a nose having a neck and a base that defines a diameter greater than that of the neck. A rotation knob has a distal end defining a first aperture and a proximal end defining a second aperture, the apertures cooperating to define a lumen extending through the rotation knob that is configured to receive the shaft. The first aperture defines a diameter that generally approximates a diameter of the shaft. The rotation knob is transitionable between an at-rest position and a flexed position. In the flexed position, the second aperture is expanded to permit passage of the base of the nose into an interior of the rotation knob. In the at-rest position, the second aperture generally approximates the diameter of the neck to rotatably engage the rotation knob about the nose with the shaft extending therethrough.
1102 Citations
15 Claims
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1. A surgical instrument, comprising:
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a housing having a shaft extending distally therefrom and defining a longitudinal axis, the housing including a nose disposed at a distal end thereof, the nose including a neck extending distally from the housing and a base disposed at a distal end of the neck, the base defining a diameter greater than a diameter of the neck; and a rotation knob having a distal end defining a first aperture and a proximal end defining at least one second aperture, the first and second apertures cooperating to define a lumen extending longitudinally through the rotation knob that is configured to receive the shaft, the rotation knob flexible between an at-rest position and a flexed position, wherein, in the flexed position, the diameter of the second aperture is expanded from a first diameter to a second, larger diameter to permit passage of the base of the nose through the second aperture and into an interior of the rotation knob, and wherein, in the at-rest position, the second aperture defines the first diameter to rotatably engage the proximal end of the rotation knob about the nose with the shaft extending through the lumen of the rotation knob. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical instrument, comprising:
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a housing having a shaft extending distally therefrom and defining a longitudinal axis, the housing including a nose disposed at a distal end thereof, the nose including a neck extending distally from the housing and a base disposed at a distal end of the neck, the base defining a diameter greater than a diameter of the neck; and a rotation knob having a distal end defining a first aperture and a plurality of radially-spaced fingers extending proximally from a proximal end of the rotation knob, the fingers each including a radially inwardly-extending tab disposed at a free end thereof, the tabs cooperating to define a second aperture, the first and second apertures cooperating to define a lumen extending longitudinally through the rotation knob that is configured to receive the shaft, the rotation knob flexible between an at-rest position and a flexed position, wherein, in the flexed position, the fingers are flexed radially outwardly to expand a diameter of the second aperture from a first diameter to a second, larger diameter, to permit passage of the base of the nose through the second aperture and into an interior of the rotation knob, and wherein, in the at-rest position, the second aperture defines the first diameter for rotatably engaging the tabs of the fingers of the rotation knob about the nose with the shaft extending through the lumen of the rotation knob. - View Dependent Claims (12, 13, 14, 15)
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Specification