Surgical instrument with stamped double-flange jaws and actuation mechanism
First Claim
1. A surgical instrument, comprising:
- an elongated shaft defining a longitudinal axis and including a proximal portion coupled to a housing and a distal portion opposite the proximal portion;
an end effector supported by the distal portion of the elongated shaft and adapted to treat tissue, the end effector comprising;
a first jaw member pivotally coupled to the distal portion of the elongated shaft and including a first pair of laterally spaced flanges; and
a second jaw member pivotally coupled to the distal portion of the elongated shaft and including a second pair of laterally spaced flanges, wherein the first and second pairs of flanges of the jaw members are arranged in an offset configuration such that one flange of the pair of flanges of the first jaw member is positioned on a laterally exterior side of a corresponding flange of the pair of flanges of the second jaw member, and the other flange of the pair of flanges of the first jaw member is positioned on a laterally interior side of the other flange of the pair of flanges of the second jaw member; and
a drive rod having a generally u-shaped profile and extending at least partially through the elongated shaft, the drive rod selectively movable to pivot at least one jaw member relative to the other jaw member.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument includes a housing that supports an elongated shaft. A selectively movable drive rod extends through the elongated shaft and carries a cam pin in a longitudinal direction. An end effector for surgically treating tissue is supported by the elongated shaft and includes upper and lower jaw members pivotally coupled to one another about a pivot axis. The upper jaw member includes a first pair of laterally spaced flanges, and the lower jaw member includes a second pair of laterally spaced flanges defining a camming slot for engaging the cam pin. The flanges are arranged in an offset configuration where one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member.
115 Citations
18 Claims
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1. A surgical instrument, comprising:
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an elongated shaft defining a longitudinal axis and including a proximal portion coupled to a housing and a distal portion opposite the proximal portion; an end effector supported by the distal portion of the elongated shaft and adapted to treat tissue, the end effector comprising; a first jaw member pivotally coupled to the distal portion of the elongated shaft and including a first pair of laterally spaced flanges; and a second jaw member pivotally coupled to the distal portion of the elongated shaft and including a second pair of laterally spaced flanges, wherein the first and second pairs of flanges of the jaw members are arranged in an offset configuration such that one flange of the pair of flanges of the first jaw member is positioned on a laterally exterior side of a corresponding flange of the pair of flanges of the second jaw member, and the other flange of the pair of flanges of the first jaw member is positioned on a laterally interior side of the other flange of the pair of flanges of the second jaw member; and a drive rod having a generally u-shaped profile and extending at least partially through the elongated shaft, the drive rod selectively movable to pivot at least one jaw member relative to the other jaw member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A surgical instrument, comprising:
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an elongated shaft defining a longitudinal axis and including a proximal portion coupled to a housing and a distal portion opposite the proximal portion; an end effector supported by the distal portion of the elongated shaft and adapted for treating tissue, the end effector including first and second jaw members pivotally coupled to one another, each of the jaw members including a pair of laterally spaced flanges arranged in a nestled configuration wherein both of the flanges of one of the jaw members are arranged within a laterally interior side of the laterally spaced flanges of the other of the jaw members; a knife extending at least partially through the elongated shaft and selectively movable in a longitudinal direction; and a drive rod selectively movable at least partially through the elongated shaft in a longitudinal direction, the drive rod configured to surround the knife on four lateral sides of the knife to restrict motion of the knife in at least two orthogonal planes. - View Dependent Claims (16, 17, 18)
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Specification