Safety endoscope system
First Claim
Patent Images
1. An endoscopic device comprising:
- endoscope means including an eyepiece and an elongated body member;
sleeve means encircling at least a portion of said body member;
means for releasably attaching said sleeve means to said endoscope means adjacent the junction of said eyepiece and said body member;
needle-like trocar means having a hollow cylindrical body with a sharpened distal end for puncturing the wall of a body cavity, said trocar means encircling at least a substantial portion of said body member and said sleeve means, said sleeve means being slidable in said trocar means; and
mechanical means mounted in said trocar means interacting between said trocr means and said sleeve means for providing a signal at the completion of the puncture of the wall of the body cavity by said trocar means.
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Abstract
An endoscope with an encircling sleeve slidably mounted in a needle-like trocar, at least the endoscope entering a body cavity under spring bias upon completion of a puncture by the trocar. Preferably, the viewing end of the endoscope is sealed within the sleeve and the trocar and sleeve are detachable from the endoscope and disposable. Impact of the endoscope against the sleeve, as well as the movement of the endoscope, provide signals of completion of the puncture to the surgeon.
327 Citations
19 Claims
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1. An endoscopic device comprising:
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endoscope means including an eyepiece and an elongated body member; sleeve means encircling at least a portion of said body member; means for releasably attaching said sleeve means to said endoscope means adjacent the junction of said eyepiece and said body member; needle-like trocar means having a hollow cylindrical body with a sharpened distal end for puncturing the wall of a body cavity, said trocar means encircling at least a substantial portion of said body member and said sleeve means, said sleeve means being slidable in said trocar means; and mechanical means mounted in said trocar means interacting between said trocr means and said sleeve means for providing a signal at the completion of the puncture of the wall of the body cavity by said trocar means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification