04535773 is referenced by 783 patents and cites 28 patents.

A surgical instrument 10 having a normally closed valve assembly 20 at its proximal end 28 which may be manually opened to receive an implement 40 terminating in a sharp blade 46 and point 48 for puncturing the wall 82 of an anatomical cavity 84. During penetration of a cavity wall, an inner sleeve 56 or a blunt probe 354 is depressed. The depression provides a tactile signal sensible to a surgeon holding the instrument and, in conjunction with an ancilliary electronic network 110, causes a visual and aural ready signal to be emitted. Upon completion of a cavity wall puncture, the inner sleeve 56 or blunt probe 354 is released, thereby shielding interior anatomical structure from the sharp implement point 48 and providing a tactile signal while simultaneously triggering the electronic network to generate a visual and aural signal indicating completion of the puncture.

Safety puncturing instrument and method
Application Number
Publication Number
Application Date
March 26, 1982
Publication Date
August 20, 1985
InBae Yoon
2101 Highland Ridge Dr., Phoenix, 21131
Robert E Bushnell
A61B 17/34
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