| 摘要 |
An instrument for the surgical closure of a trocar puncture through a posterior fascia introduced during a laparoscopic operation comprises a tube ( 1 ) with a forward insertion end ( 2 ) and a rearward end ( 3 ), in whose shell wall ( 5 ) opposing window openings ( 7 ) are formed, in which terminates at its margins remote from the insertion end ( 2 ) of the tube ( 1 ) at least one bore ( 8 ) extending in the shell wall ( 5 ) in the longitudinal direction of the tube ( 1 ), hollow needles ( 10 ), each disposed in one of the bores ( 8 ) and displaceable between a retracted position, in which they clear the particular window opening ( 7 ), and an end position, in which they cross the window opening ( 7 ), and each having an inner channel ( 17 ), wherein each of the inner channels ( 17 ) of the hollow needles ( 10 ) forms a section of a guide channel for guiding through a suture thread ( 36 ), and this guide channel further includes at least one curved connecting section ( 18 ), which connects the front ends of the inner channels ( 17 ) of two hollow needles ( 10 ) when they are in their end positions and crossing opposing window openings ( 7 ), which, over its entire longitudinal length, is covered with respect to the outer space encompassing the tube ( 1 ) by an openable closure device ( 23 ) or is connected via a slot with the outer space encompassing the tube ( 1 ), wherein a segment of the suture thread ( 36 ) located in the connecting section ( 18 ) can be brought out of the connecting section ( 18 ) of the guide channel into the outer space through the slot or after opening the closure device ( 23 ).
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