Tilt top anvil with torsion spring
First Claim
Patent Images
1. An anvil assembly comprising:
- a rod defining a longitudinal axis;
a head assembly including a housing, a collar, and an anvil plate, the anvil plate being pivotable with respect to the rod; and
a biasing element disposed in mechanical cooperation with the collar;
wherein when the anvil plate is in a non-pivoted position, the collar is longitudinally movable from a first position where at least a portion of the collar is disposed proximally of a portion of the biasing element, to a second position where at least a portion of the collar is disposed distally of the portion of the biasing element.
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Abstract
A tilt anvil assembly is disclosed which includes a center rod, a head assembly, and a torsion spring configured to pivot the head assembly relative to the center rod. The head assembly has a locking collar defining a locked position preventing pivotal movement of the head assembly, and an unlocked position allowing pivotal movement of the head assembly. The torsion spring selectively engages the locking collar to maintain the locking collar at either the locked or unlocked position.
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Citations
20 Claims
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1. An anvil assembly comprising:
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a rod defining a longitudinal axis; a head assembly including a housing, a collar, and an anvil plate, the anvil plate being pivotable with respect to the rod; and a biasing element disposed in mechanical cooperation with the collar; wherein when the anvil plate is in a non-pivoted position, the collar is longitudinally movable from a first position where at least a portion of the collar is disposed proximally of a portion of the biasing element, to a second position where at least a portion of the collar is disposed distally of the portion of the biasing element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of using an anvil assembly, comprising:
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providing an anvil assembly including; a rod; an anvil head pivotably engaged with the rod; a collar disposed in mechanical cooperation with the rod; and a biasing element disposed in mechanical cooperation with the collar; and while the anvil head is in a non-pivoted position, moving the collar from a first position where at least a portion of the collar is disposed proximally of a portion of the biasing element and where the anvil head is prevented from pivoting, to a second position where at least a portion of the collar is disposed distally of the portion of the biasing element and where the anvil head is capable of pivoting. - View Dependent Claims (15, 16)
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17. An anvil assembly comprising:
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a rod; a head assembly disposed in mechanical cooperation with the rod, the head assembly including a housing, a collar, and an anvil plate; and a biasing element disposed in mechanical cooperation with the collar, the biasing element including a coiled structure and at least one biasing member extending radially outwardly from the coiled structure. - View Dependent Claims (18, 19, 20)
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Specification