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Surgical stapling device

  • US 10,231,732 B1
  • Filed: 11/20/2018
  • Issued: 03/19/2019
  • Est. Priority Date: 06/17/2003
  • Status: Active Grant
First Claim
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1. A surgical tool comprising:

  • a shaft having a proximal end and a distal end;

    a distal tool assembly attached to the distal end of the shaft, the distal tool assembly comprising;

    a drive member comprising;

    a lower transverse portion comprising first and second transverse protrusions extending in substantially opposite directions along a first axis,an upper transverse portion comprising third and fourth transverse protrusions extending in substantially opposite directions along a second axis, the second axis being substantially parallel to the first axis, anda vertical portion extending between and connecting the lower transverse portion and the upper transverse portion along a third axis substantially perpendicular to the first and second axes, the upper transverse portion and the lower transverse portion being substantially transverse to the vertical portion,a first jaw comprising;

    a proximal end,a distal end, andan elongated channel extending between the proximal end of the first jaw and the distal end of the first jaw, the elongated channel being configured to receive a staple cartridge, wherein corresponding slots and grooves in the staple cartridge and the carrier portion are configured to retain the staple cartridge within the elongated channel,a second jaw pivotable relative to the first jaw, the second jaw comprising;

    a proximal end,a distal end,an anvil having at least one staple forming surface thereon, the at least one staple forming surface having at least one staple deforming pocket, andthe anvil having a longitudinal channel extending between the proximal end of the second jaw and the distal end of the second jaw, the longitudinal channel being configured to receive the third and fourth transverse protrusions of the upper transverse portion of the drive member, andat least one first cable extending through at least a portion of the elongated channel, the at least one first cable being attached to the drive member, wherein force on the at least one first cable causes the drive member to move along the first and second jaws such that the third and fourth transverse protrusions of the upper transverse portion of the drive member move through the longitudinal channel and causes at least one of;

    the first and second jaws to clamp,staples to be ejected from a staple cartridge when a staple cartridge is received within the elongated channel of the first jaw, andretraction of the drive member in a proximal direction; and

    a connection mechanism connecting the distal tool assembly to the shaft, the connection mechanism comprising;

    a first pivot axis being substantially perpendicular to a longitudinal axis of the shaft,at least one pulley rotatable about the first pivot axis, wherein rotation of the at least one pulley causes the distal tool assembly to pivot about the first pivot axis,at least one second cable received in a channel of the pulley, wherein movement of the at least one second cable causes the pulley to rotate about the first pivot axis such that the distal tool assembly pivots about the first pivot axis, anda second pivot axis being substantially perpendicular to the longitudinal axis of the shaft and to the first pivot axis, wherein the distal tool assembly is pivotable about the second pivot axis.

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