DESIGN OF VERSIONS OF CLOSING BRANCH OF SURGICAL INSTRUMENTS Russian patent published in 2017 - IPC A61B17/68 A61B17/64 

FIELD: medical equipment.

SUBSTANCE: group of inventions refers to medical equipment, namely to surgical instruments and, in particular, to surgical incision and suturing instruments. Surgical instrument comprises handle, unit of journal, unit of closing tube, starting system and working tool. Unit of journal is functionally connected with handle and extends therefrom to make lengthwise axis. Assembly of closing tube can move on journal for selective axial movement along it in distal direction to handle assembly. Launching system functionally maintained handle assembly and interacts with closing tube for selective action on closing tube assembly to move in distal and proximal directions. Working tool connected with pin and comprises first and second branches, configured to move relative to each other from open position to closed position. First branch is configured to maintain in it of cassette with clips. First and second branches are engaged with possibility of control with closing tube so that first and second branches are moved in closed position when closing tube assembly is moving in proximal direction. First branch is bent up first end of drive, made with possibility of engagement with closing tube, when closing tube assembly moves in proximal direction. Second branch has bent down second end of drive, made with possibility of engagement with closing tube, when closing tube assembly moves in proximal direction. Working tool to attachment to journal of surgical instrument has closing tube supported on it that can move in proximal and distal directions in response to applied to it starting motions, and comprises distal segment of trunnion, elongated channel, support and distal segment. Distal segment of journal is connected with possibility of removal from journal of surgical instrument. Elongated channel is connected with possibility of hinged rotation with distal segment of trunnion. Thrust is supported to displace relative to elongated channel and can be displaced from open position to closed positions relative to elongated channel. Distal segment of covering tube is supported with possibility of movement on distal segment of journal and is made with possibility of detachable attachment to closing tube of surgical instrument. At that, distal segment of covering tube is designed to interact with parts of elongated channel and stop so that distal segment covering tube acts on support to move from open position to closed position when distal segment of closing tube is in proximal direction closing tube of surgical instrument. In second version surgical instrument comprises handle, neck, closing tube and working tool. Journal forms longitudinal axis and is connected to unit for selective rotation about longitudinal axis relative to handle assembly. Closing tube is retained on proximal journal for axial movement along it in proximal direction and in distal direction in response to starting motion applied to start-up system functionally supported by handle assembly. Closing tube also has possibility of rotation about longitudinal axis relative to handle assembly. Working tool comprises distal segment of journal, distal segment of covering tube, elongated channel and stop. Distal segment of journal is connected with possibility of removal with distal end of journal. Distal segment covering tube is supported with possibility of movement on distal segment of journal and is made with possibility of detachable connection with distal end of closing tube. Elongated channel is connected with possibility of being moved to distal segment of journal and is configured to maintain holder with staples, wherein elongated has part of channel drive with possibility of activating engagement with distal covering tube. Thrust is supported to displace relative to elongated channel and has part of drive thrust, made with possibility to activating engagement with distal covering tube so that movement of distal segment of closing in the proximal direction leads to movement of stop and elongated channel towards each other.

EFFECT: group of inventions provides optimum actuation force.

19 cl, 243 dwg