Surgical instrument with multiple rotatably mounted spreadable end effectors
First Claim
1. A surgical instrument for use in open and endoscopic surgery comprisinga housing;
- an elongate shaft having a proximal end mounted by said housing and a distal end with a peripheral edge;
a first end effector assembly protruding from said distal end of said elongate shaft and having an end effector at a distal end; and
a second end effector assembly protruding from said distal end of said elongate shaft and having an end effector at a distal end;
wherein a distal portion of said first end effector assembly extends laterally outward at an angle from a first longitudinal axis of said elongate shaft to a position where at least a portion of said corresponding end effector is spaced laterally outward of said peripheral edge of said elongate shaft; and
wherein said first end effector assembly is rotatable about said first longitudinal axis of said elongate shaft to cause said corresponding end effector to move along a first arcuate path having a center of curvature coaxial with said first longitudinal axis.
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Accused Products
Abstract
An instrument for performing a surgical procedure includes a housing, an elongate shaft having a proximal end mounted by the housing and a distal end with a peripheral edge, a first end effector assembly protruding from the distal end of the elongate shaft and having an end effector at a distal end, and a second end effector assembly protruding from the distal end of the elongate shaft and having an end effector at a distal end. Distal portions of the first and second end effector assemblies extend laterally outward at an angle from first and second longitudinal axes of the elongate shaft to positions where at least a portion of the corresponding end effectors are spaced laterally outward of the peripheral edge of the elongate shaft. In addition, the end effector assemblies are rotatable about the first and second longitudinal axes of the elongate shaft to cause the corresponding end effectors to move along first and second arcuate paths. When inserting the surgical instrument through a portal in an endoscopic procedure, the first and second end effector assemblies are preferably moved to undeployed positions where their end effectors are spaced laterally inward of the peripheral edge of the elongate shaft, for example by rotating the end effector assemblies inwardly or drawing the end effectors proximally into the elongate shaft so that they are straightened. In use, the end effectors can be moved from their undeployed positions to deployed positions disposed laterally outward of the peripheral edge due to the angled configuration of the distal portions of the end effector assemblies.
766 Citations
56 Claims
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1. A surgical instrument for use in open and endoscopic surgery comprising
a housing; -
an elongate shaft having a proximal end mounted by said housing and a distal end with a peripheral edge; a first end effector assembly protruding from said distal end of said elongate shaft and having an end effector at a distal end; and a second end effector assembly protruding from said distal end of said elongate shaft and having an end effector at a distal end; wherein a distal portion of said first end effector assembly extends laterally outward at an angle from a first longitudinal axis of said elongate shaft to a position where at least a portion of said corresponding end effector is spaced laterally outward of said peripheral edge of said elongate shaft; and wherein said first end effector assembly is rotatable about said first longitudinal axis of said elongate shaft to cause said corresponding end effector to move along a first arcuate path having a center of curvature coaxial with said first longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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18. A surgical instrument for use in open and endoscopic procedures comprising
a housing; -
an elongate shaft having a proximal end mounted by said housing and a distal end with a peripheral edge; a first end effector assembly having a proximal portion extending at least part way through said elongate shaft along a first longitudinal axis, a distal portion extending laterally outward from said proximal portion at an angle, and a end effector mounted on said distal portion, said proximal portion of said first end effector assembly being rotatably mounted within said elongate shaft to move said end effector of said first end effector assembly along a first arcuate path having a center of curvature coaxial with said first longitudinal axis; and a second end effector assembly having a proximal portion extending at least part way through said elongate shaft along a second longitudinal axis laterally spaced from said first longitudinal axis, a distal portion extending laterally outward from said proximal portion at an angle, and a end effector mounted on said distal portion, said proximal portion of said second end effector assembly being rotatably mounted within said elongate shaft to move said end effector of said second end effector assembly along a second arcuate path having a center of curvature coaxial with said second longitudinal axis; wherein said first arcuate path has a radius of curvature causing at least a portion of said end effector of said first end effector assembly to extend outwardly of said peripheral edge of said elongate shaft. - View Dependent Claims (19, 20, 21, 22, 50)
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23. A method of performing a surgical procedure in an anatomical cavity comprising the steps of
introducing a surgical instrument having an elongate shaft into the anatomical cavity, the surgical instrument including first and second end effector assemblies protruding distally from the distal end of the elongate shaft, the first end effector assembly including a distal portion extending laterally outward at an angle from a first longitudinal axis of the elongate shaft to an end effector disposed at least partly outside a peripheral edge of the elongate shaft; - and
operating on tissue within the anatomical cavity by rotating the first end effector assembly about the first longitudinal axis. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 52, 53, 54, 55, 56)
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32. A surgical instrument for use in open and endoscopic procedures, comprising:
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an elongate shaft having a proximal end and a distal end with a peripheral edge; a handle coupled to said proximal end of said shaft; a first arm protruding from said distal end of said elongate shaft and having an end effector at a distal end; and a second arm protruding from said distal end of said elongate shaft and having an end effector at a distal end; wherein said first arm extends laterally outward at an angle from a first longitudinal axis within said elongate shaft to a position where at least a portion of said end effector of said first arm is spaced laterally outward of said peripheral edge of said elongate shaft; and wherein said first arm is rotatable about said first longitudinal axis to cause said end effector of said first arm to move along a first arcuate path having a center of curvature coaxial with said first longitudinal axis.
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49. A surgical instrument for use in open and endoscopic procedures, comprising:
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an elongate shaft having a proximal end and a distal end with a peripheral edge; a handle coupled to said proximal end of said shaft; a first end effector assembly having a proximal portion extending at least part way through said elongate shaft along a first longitudinal axis, a distal arm portion extending laterally outward from said proximal portion at an angle, and a end effector mounted on said distal arm portion, said proximal portion of said first end effector assembly being rotatably mounted within said elongate shaft to move said end effector of said first end effector assembly along a first arcuate path having a center of curvature coaxial with said first longitudinal axis; a second end effector assembly having a proximal portion extending at least part way through said elongate shaft along a second longitudinal axis laterally spaced from said first longitudinal axis, a distal arm portion extending laterally outward from said proximal portion at an angle, and an end effector mounted on said distal arm portion, said proximal portion of said second end effector assembly being rotatably mounted within said elongate shaft to move said end effector of said second end effector assembly along a second arcuate path having a center of curvature coaxial with said second longitudinal axis; and wherein said first arcuate path has a radius of curvature causing at least a portion of said end effector of said first end effector assembly to extend outwardly of said peripheral edge of said elongate shaft.
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51. A method of performing a surgical procedure in an anatomical cavity, comprising the steps of:
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introducing a surgical instrument having an elongate shaft into the anatomical cavity, the surgical instrument including first and second arms protruding distally from the distal end of the elongate shaft, the first arm extending laterally outward at an angle from a first longitudinal axis within the elongate shaft and having an end effector thereon disposed at least partly outside a peripheral edge of the elongate shaft; and operating on tissue within the anatomical cavity by rotating the first arm about the first longitudinal axis.
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Specification