Surgical device having a handle adapted to impart tensile and compressive forces to elements at a distal end of the device
First Claim
Patent Images
1. A surgical device, comprising:
- a) a tubular member having proximal and distal ends;
b) a first control element wire extending through said tubular member and having proximal and distal ends;
c) at least one second control element extending through said tubular member and having proximal and distal ends; and
d) a handle comprising (i) a stationary member, (ii) a first lever coupled to said proximal end of said at least one second control element and linearly movable relative to said stationary member to effect relative proximal and distal movement of said at least one second control element relative to said tubular member, said first lever being lockable and unlockable in position relative to said stationary member, (iii) a rack member linearly movable within said handle and fixedly coupled to said proximal end of said first control element, (iv) a second lever rotatably coupled to said first lever, (v) a pinion rotatable coupled to the second lever, and (vi) a spring element biasing said pinion against said rack member, such that when said second lever is rotated relative to said first lever, said pinion effects substantially linear movement of said rack member and thereby causes proximal and distal movement of first control element relative to said tubular member.
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Abstract
A flexible clip applier includes a flat wire wound tubular coil, a pair of jaws at the end of the coil, end effector wires extending through the coil and coupled to the jaws, and a clip-advancing wire extending through the coil. A proximal handle is adapted to impart tensile force the end effector wires and the tubular coil, and compressive force to the clip-advancing wire and tubular coil to thereby effect advancement of a clip into the jaws and over tissue compressed between the jaws, and deformation of the clip over the tissue.
428 Citations
29 Claims
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1. A surgical device, comprising:
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a) a tubular member having proximal and distal ends;
b) a first control element wire extending through said tubular member and having proximal and distal ends;
c) at least one second control element extending through said tubular member and having proximal and distal ends; and
d) a handle comprising (i) a stationary member, (ii) a first lever coupled to said proximal end of said at least one second control element and linearly movable relative to said stationary member to effect relative proximal and distal movement of said at least one second control element relative to said tubular member, said first lever being lockable and unlockable in position relative to said stationary member, (iii) a rack member linearly movable within said handle and fixedly coupled to said proximal end of said first control element, (iv) a second lever rotatably coupled to said first lever, (v) a pinion rotatable coupled to the second lever, and (vi) a spring element biasing said pinion against said rack member, such that when said second lever is rotated relative to said first lever, said pinion effects substantially linear movement of said rack member and thereby causes proximal and distal movement of first control element relative to said tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical device, comprising:
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a) a tubular member having proximal and distal ends;
b) a first control element wire extending through said tubular member and having proximal and distal ends;
c) at least one second control element extending through said tubular member and having proximal and distal ends; and
d) a handle comprising (i) a stationary member, (ii) a first lever coupled to said proximal end of said at least one second control element and linearly movable relative to said stationary member to effect relative proximal and distal movement of said at least one second control element relative to said tubular member, (iii) a first spring biasing said first lever to away from said stationary member, (iv) a second lever rotatably coupled relative to said first lever and coupled to a proximal end of said first control element, and (v) a second spring biasing said second lever away from said first lever, wherein when said first lever is moved against the bias of said first spring said at least one second control element is pulled into tension, and when said second lever is moved against the bias of said second spring said first control element is pushed into compression. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A surgical device, comprising:
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a) a tubular member having proximal and distal ends;
b) at least one first control element extending through said tubular member and having proximal and distal ends; and
c) a handle assembly comprising (i) a stationary member, (ii) a first lever linearly movable relative to said stationary member and coupled to said proximal end of said at least one first control element, wherein movement of said first lever relative to said stationary member effects relative proximal and distal movement of said at least one first control element relative to said tubular member, (iii) a first spring biasing said first lever away from said stationary member, and (iv) a catch system which automatically locks said first lever relative to said stationary member when said first lever first lever is moved against the bias of said first spring with a predeterminable amount of force, said catch system including a manual release which unlocks said first lever relative to said stationary member. - View Dependent Claims (20, 21, 22, 23)
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24. A surgical device, comprising:
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a) a tubular member having proximal and distal ends;
b) at least one first control element extending through said tubular member and having proximal and distal ends; and
c) a handle assembly comprising (i) a stationary member, (ii) a first lever linearly movable relative to said stationary member and coupled to said proximal end of said at least one first control element, wherein movement of said first lever relative to said stationary member effects relative proximal and distal movement of said at least one first control element relative to said tubular member, (iii) a first constant force spring biasing said first lever away from said stationary member, and (iv) a catch system which locks said first lever relative to said stationary member when said first lever first lever is moved against the bias of said first spring with a predeterminable amount of force, said catch system including a manual release which unlocks said first lever relative to said stationary member, wherein said catch system includes, (A) a locking tooth coupled to said first lever, (B) a lever including engagement structures engageable with said locking tooth, (C) a mount immovably coupled relative to said first lever, (D) a latch movably coupled to said mount, said proximal end of said at least one first control element being coupled to said latch, and (E) a second spring biasing said latch proximally relative to said first lever, said latch including a ramp surface which operates to prevent locking engagement between said locking tooth and at least one said engagement structures when said latch is in a praximalmost position relative to said first lever, said mount and said latch having a cam engagement, such that when said lever is moved proximally to cause tension in said second spring to be greater than tension in said first spring, said lever moves proximally relative to said latch, said latch is moved such that said ramp surface fails to prevent locking engagement between said locking tooth and said at least one of said engagement structure, and at least one of said engagement structures lockingly engages with said locking tooth to immobilize said lever relative to said stationary handle.
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25. A surgical device, comprising:
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a) a tubular member having proximal and distal ends;
b) at least one first control element extending through said tubular member and having proximal and distal ends;
c) a handle assembly comprising (i) a stationary member, (ii) a first lever linearly movable relative to said stationary member and coupled to said proximal end of said at least one first control element, wherein movement of said first lever relative to said stationary member effects relative proximal and distal movement of said at least one first control element relative to said tubular member, (iii) a first spring biasing said first lever away from said stationary member, and (iv) a catch system which locks said first lever relative to said stationary member when said first lever first lever is moved against the bias of said first spring with a predeterminable amount of force, said catch system including a manual release which unlocks said first lever relative to said stationary member; and
d) a second control element extending through said tubular member and having proximal and distal ends, wherein said handle further comprises (v) a second lever rotatably coupled relative to said first lever and coupled to a proximal end of said second control element, and (vi) a second spring biasing said second lever away from said first lever, wherein when said second lever is moved against the bias of said second spring said second control element is pushed into compression. - View Dependent Claims (26, 27, 28)
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29. A surgical device, comprising:
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a) a flexible tubular member having a length of 150 cm to 250 cm and proximal and distal ends;
b) at least one flexible first control element extending through said tubular member and having proximal and distal ends; and
c) a handle assembly comprising (i) a stationary member, (ii) a first lever linearly movable relative to said stationary member and coupled to said proximal end of said at least one first control element, wherein movement of said first lever relative to said stationary member effects relative proximal and distal movement of said at least one first control element relative to said tubular member, (iii) a first spring biasing said first lever away from said stationary member, and (iv) a catch system which locks said first lever relative to said stationary member when said first lever first lever is moved against the bias of said first spring with a predeterminable amount of force, said catch system including a manual release which unlocks said first lever relative to said stationary member.
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Specification