Surgical fastener applying apparatus
First Claim
Patent Images
1. A surgical fastener applying apparatus comprising:
- an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven;
a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section, the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position, the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position;
a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section, wherein the gap adjustment mechanism defines an axis of rotation that is transverse to a longitudinal axis of surgical fastener applying apparatus, and wherein the gap adjustment mechanism is rotated to adjust the gap; and
a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap.
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Accused Products
Abstract
The present disclosure relates to surgical fastener applying apparatus for sequentially applying a plurality of surgical fasteners to body tissue. The surgical fastener applying apparatus includes a replaceable cartridge assembly receivable in a distal end portion of a cartridge receiving half-section, the cartridge assembly including a safety lockout pivotably disposed along the upper surface of the cartridge assembly and movable from an unlocked orientation permitting assembly of an anvil half-section to the cartridge receiving half-section, to a locked orientation preventing assembly of the anvil half-section to the cartridge receiving-half section.
1153 Citations
9 Claims
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1. A surgical fastener applying apparatus comprising:
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an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven; a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section, the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position, the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position; a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section, wherein the gap adjustment mechanism defines an axis of rotation that is transverse to a longitudinal axis of surgical fastener applying apparatus, and wherein the gap adjustment mechanism is rotated to adjust the gap; and a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap. - View Dependent Claims (2, 3)
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4. A surgical fastener applying apparatus comprising:
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an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven; a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section, the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position. the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position; a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section, wherein the gap adjustment mechanism includes a cam with a forward portion, a body portion and a rearward portion, wherein the body portion of the cam defines a central rotational axis and wherein the forward and rearward portions share a common axis which is spaced a distance from the central rotational axis; and a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap. - View Dependent Claims (5, 6)
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7. A surgical fastener applying apparatus comprising:
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an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven, the anvil half-section including a clamping lever; a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section. the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position, the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position; a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section; and a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap; the cartridge half-section clamping lever and the anvil half-section clamping lever being configured and adapted for operative movement to enable opening of the applying apparatus on either said cartridge half-section side or said anvil half-section side.
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8. A surgical fastener applying apparatus comprising:
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an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven; a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section, the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position, the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position; a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section; a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap; and a loading unit having staples and being receivable in the cartridge half-section and wherein the cartridge half-section includes a member longitudinally movable through the loading unit to fire staples from the loading unit, and a lockout mechanism arranged to prevent advancement of the member in a locked-out position of the lockout mechanism, the lockout mechanism including a rocker pivotably mounted to the cartridge half-section.
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9. A surgical fastener applying apparatus comprising:
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an anvil half-section having a proximal end portion and a distal end portion including an anvil which defines a fastener forming surface against which surgical fasteners are driven; a cartridge receiving half-section having a proximal end portion and a distal end portion, the cartridge receiving half-section being configured and adapted to releasably mate with the anvil half-section, the anvil half-section and the cartridge receiving half-section being relatively movable from an unclamped position to a fully clamped position to clamp tissue therebetween, the cartridge half-section including a pivotable clamping lever, wherein movement of the clamping lever from a first position to a second position moves the cartridge receiving and anvil half-sections to the fully clamped position, the anvil half-section and the cartridge half-section defining a gap between their respective distal ends when in the fully clamped position; a gap adjustment mechanism disposed between the anvil half-section and the cartridge receiving half-section and configured and adapted to vary the size of the gap between the distal end portions of the anvil half-section and the cartridge receiving half-section; a cam lock configured and adapted to engage the gap adjustment mechanism and to prevent movement of the gap adjustment mechanism after adjustment of the gap; and a loading unit having staples and being receivable in the cartridge half-section, the loading unit having a lockout movable from a initial substantially horizontal position to a vertical blocking position, the blocking position preventing re-clamping of the cartridge half-section and anvil half-section after at least a partial firing of the loading unit.
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Specification