| 摘要 |
A disposable surgical safety scalpel comprising a blade, fixed at one end to an elongated support or slider, sliding longitudinally inside a protective shell, to bring the blade from a retracted inoperative position, in which it is housed inside the shell, to an exposed operative position, through the action of an operator who acts on a push-button mounted on the support; a safety shield longitudinally slidably mounted on the shell, the shield moving from an advanced position, in which it covers the push-button, when the push-button is in its retracted inoperative position, for preventing the push-button from involuntary driving, to a retracted position, in which the shield does not cover the push-button; and elastic return elements to bring the blade back into the retracted inoperative position, the elastic elements acting between the support and the safety shield, such that the shield can automatically and involuntary cover the push-button, when the support is brought in its retracted inoperative position by the elastic elements.
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