Surgical fastener applying apparatus with controlled beam deflection
First Claim
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1. A surgical fastener applying apparatus, comprising:
- an anvil half-section defining a longitudinal axis and a tissue contacting surface, the anvil half-section including a proximal end and a distal end;
a cartridge receiving half-section mechanically coupled to the anvil half-section; and
a multi-stage deflection control system mechanically coupled to the anvil half-section, the deflection control system being configured and dimensioned to reinforce the distal end of the anvil half-section upon application of a force thereto, the force acting on the anvil half-section in a direction transverse to the longitudinal axis of the anvil half-section and normal to a plane defined by the tissue contacting surface, such that a rate of deflection of the distal end of the anvil half-section progressively decreases during compression of tissue positioned between the anvil half-section and the cartridge receiving half-section, thereby incrementally stiffening the distal end of the anvil half-section.
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Abstract
A surgical fastener applying apparatus including an anvil half-section having a distal end and a longitudinal axis; a cartridge receiving half-section having a distal end and operatively couplable with the anvil half-section such that the distal ends of the half-sections are in juxtaposed relation; and a deflection control system operatively engaged with and reinforcing the distal end of the anvil half-section when a force is applied to the distal end of the anvil half-section in a direction transverse to the longitudinal axis.
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Citations
29 Claims
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1. A surgical fastener applying apparatus, comprising:
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an anvil half-section defining a longitudinal axis and a tissue contacting surface, the anvil half-section including a proximal end and a distal end; a cartridge receiving half-section mechanically coupled to the anvil half-section; and a multi-stage deflection control system mechanically coupled to the anvil half-section, the deflection control system being configured and dimensioned to reinforce the distal end of the anvil half-section upon application of a force thereto, the force acting on the anvil half-section in a direction transverse to the longitudinal axis of the anvil half-section and normal to a plane defined by the tissue contacting surface, such that a rate of deflection of the distal end of the anvil half-section progressively decreases during compression of tissue positioned between the anvil half-section and the cartridge receiving half-section, thereby incrementally stiffening the distal end of the anvil half-section.
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2. A surgical fastener applying apparatus, comprising:
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an anvil half-section defining a longitudinal axis and a tissue contacting surface, the anvil half-section including a proximal end and a distal end; and a deflection control system mechanically coupled to the anvil half-section, the deflection control system configured and dimensioned to reinforce the distal end of the anvil half-section upon application of a force thereto, the force acting on the anvil half-section in a direction transverse to the longitudinal axis of the anvil half-section and normal to a plane defined by the tissue contacting surface, the deflection control system including; a reinforcing member comprising a first plate and a second plate overlying the first plate, wherein the first plate has a proximal end, a distal end, and a slot formed in the distal end thereof having a length, and the second plate has a proximal end, a distal end, and a slot formed in the distal end thereof having a length, the length of the slot formed in the second plate being different than the length of the slot formed in the first plate; and a pin member configured and dimensioned for receipt in the slot formed in the first plate and in the slot formed in the second plate such that at least the distal end of the reinforcing member is slidably secured to the distal end of the anvil half-section. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification