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US 7,608,039 B1Granted
Hand-held surgical instrument with illuminated keypad
AssigneeStryker Corporation
InventorErik F. D. Todd
Life of this patent
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Abstract
A hand-held endoscopic surgical instrument, such as a camera or shaver, comprises an illuminated keypad operable by a user to operate the instrument.
Claims3
An apparatus comprising:
- a hand-held endoscopic surgical camera including
- a housing for the endoscopic camera, wherein an upper portion of the housing slopes downward towards a user of the endoscopic camera and includes a recessed region;
- circuitry, within the housing, to control functionality of the hand-held endoscopic surgical camera, wherein the endoscopic surgical camera includes focus and zoom functions;
- a control operable by a user to operate the circuitry, wherein the control includes a keypad made of a single piece of pliable material and including four keys mounted in a cross-like configuration, wherein the keypad electronically controls the focus and zoom functions of the endoscopic surgical camera and wherein the keypad is mounted so that a upper portion of the keypad extends above the upper portion of the housing and a lower portion of the keypad extends into the recessed region;
- and
- a light source to illuminate the control, wherein the light source is a phosphorescent substance that is integral with the keypad, and wherein the keypad includes opaque symbols that are not self-illuminating on the top surface of the keypad to indicate corresponding functions, such that the control is self-illuminating and the opaque symbols are visible in a dark environment in contrast to the rest of the self-illuminating keypad.
3 more elements
Dependencies are inferred from the claim text.