Surgical stapling apparatus
First Claim
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1. A surgical apparatus comprising:
- a handle assembly;
an elongated body extending distally from the handle assembly and defining a longitudinal axis;
a tool assembly supported at the distal end of the elongated body and being pivotable about a pivot axis with respect to the elongated body, the tool assembly including an anvil assembly and a cartridge assembly having a plurality of surgical staples;
a flexible drive member extending from a position proximal of the pivot axis to a position distal of the pivot axis, the drive member having a distal end which is movable in relation to the tool assembly to actuate the tool assembly, the drive member being configured as a beam; and
a blow out member having a proximal end positioned on one side of the drive member and extending from a position proximal of the pivot axis to a position distal of the pivot axis, the blow out member having a planar surface adjacent to the pivot axis such that the at least one blow-out member is positioned to inhibit outward bulging of the flexible drive member.
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Abstract
A surgical stapling device particularly suited for endoscopic procedures is described. The device includes a handle assembly and an elongated body extending distally from the handle assembly. The distal end of the elongated body is adapted to engage a disposable loading unit. A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body. A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device.
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Citations
27 Claims
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1. A surgical apparatus comprising:
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a handle assembly; an elongated body extending distally from the handle assembly and defining a longitudinal axis; a tool assembly supported at the distal end of the elongated body and being pivotable about a pivot axis with respect to the elongated body, the tool assembly including an anvil assembly and a cartridge assembly having a plurality of surgical staples; a flexible drive member extending from a position proximal of the pivot axis to a position distal of the pivot axis, the drive member having a distal end which is movable in relation to the tool assembly to actuate the tool assembly, the drive member being configured as a beam; and a blow out member having a proximal end positioned on one side of the drive member and extending from a position proximal of the pivot axis to a position distal of the pivot axis, the blow out member having a planar surface adjacent to the pivot axis such that the at least one blow-out member is positioned to inhibit outward bulging of the flexible drive member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical stapling apparatus comprising:
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a handle assembly; an elongated body extending distally from the handle assembly and defining a longitudinal axis; a tool assembly supported adjacent a distal end of the elongated body and being pivotable with respect to the elongated body, the tool assembly including an anvil assembly and a cartridge assembly having a plurality of surgical staples; a flexible drive member extending from a position proximal of the pivot axis to a position distal of the pivot axis, the drive member having a distal end which is movable in relation to the tool assembly to actuate the tool assembly, the drive member being configured as a beam having a plurality of stacked sheets; and an actuation shaft mounted for longitudinal movement in response to manipulation of the handle, the actuation shaft being arranged to move the drive member longitudinally in relation to the tool assembly. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification