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Vsesojuzny Nauchno-issledovatelsky I Ispytatelny Institut Meditsinskoi

Vsesojuzny Nauchno-issledovatelsky I Ispytatelny Institute Meditsinskoi

Iosif L Lipovsky

Vladimir M Fedotov

Boris A Smirnov

Vladimir P Kharchenko

Tatyana L Ivanova

Genrikh I Lukomsky

Evgeny V Kolesov

A ligating instrument comprising an anvil body and a staple driving body with a longitudinal groove which accommodates a staple magazine with staple pushers and a wedge. The latter is mounted on a carriage arranged in guides provided on the lateral walls of the staple driving body. The instrument incorporates a device for adjusting the ligation spacing, which comprises a stationary axle mounted on the carriage transversely to the latter. The tapered portion of the wedge is fitted on this axle. The ligation spacing adjustment means also includes a movable support articulated to the wedge in its rear portion so that the movable support and the wedge can be set in motion at a perpendicular to the guides of the carriage.

Ligating instrument

A surgical stapling apparatus, comprising a thrust case incorporating a lengthwise groove. Said groove accommodates a magazine containing staples, and drivers of the staples, and a wedge interacting with said pushers and seating on a carriage supported in guides running along said staple case. A surface of said wedge interacting with said drivers is curvilinear, with lines tangent to the generatrix thereof and a travelling direction of said wedge located so as to constitute an angle varying gradually from 45 deg to zero between a front part of said wedge and the back part thereof in the direction of the wedge travel during stapling procedure.

Surgical stapling apparatus

The instrument has a separable body composed of two oblong interlinked members, each of them carrying at one of its vacant ends a detachable split bush adapted for the element being sutured to pass through the interior thereof and arranged across the longitudinal axis of the respective instrument body member. The bushes have flanges on the ends facing each other, each of the flanges having an open annular slot in the surfaces facing each other, and an opening made in the lateral face of the flange, the opening being communicated with the slot and with the tube that freely runs throughout the overall length of the instrument body and extends from it outwards so as to be connected to the vacuum device. The slots and openings in the bushes establish, along with the tubes, a system of air evacuation from the suturing zone, which is discarded along with the bush after the suturing procedure. One of the bushes has passages for the staples, while the other bush, a die for the staples to bend. A staple feeding mechanism is also provided.

Instrument for establishing vascular anastomoses

Described herein is an instrument, having detachably hinged together supporting and staple bodies provided with parallel-arranged jaws, of which one jaw is adapted for carrying staple magazines, while the other, for accommodating therein a slidable member provided with recesses for bending staples. The slidable member is adjustably traversable towards the staple body and can be locked in a preset position. A device is provided for imparting the above motions to the slidable member.

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Saint-Petersburg, Russia

Iosif L Lipovsky