Endoscopic clip apparatus and methods
AssigneeGastroLogic LLC
InventorsMichael Docherty, Roy Sullivan
Life of this patent
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Abstract
An endoscopic clip apparatus includes a clip sleeve defining an interior passage along a longitudinal axis and having a distal end with a plurality of openings defined in the distal end. A clip including a plurality of arms is disposed in the clip sleeve, and each arm includes a distal tip extending from the clip sleeve through one of the plurality of openings. Each arm includes a convex curved section oriented away from the longitudinal axis. The clip sleeve and clip are axially moveable relative to each other such that when the clip sleeve travels over the convex curved section of each arm toward the distal tip of each arm, each arm is constrained by the clip sleeve and each distal tip advances toward the longitudinal axis to grasp tissue.
Claims29
An apparatus, comprising:
- a clip sleeve defining an interior passage along a longitudinal axis, the clip sleeve having a distal end with a plurality of openings defined in the distal end;
- a clip including a plurality of arms disposed in the clip sleeve, each arm including a distal tip extending from the clip sleeve through one of the plurality of openings, each arm including a convex curved section oriented away from the longitudinal axis;
- and
- an axially twisted section in at least one of the plurality of arms,
- wherein the clip sleeve and clip are axially moveable relative to each other such that when the clip sleeve travels over the convex curved section of each arm toward the distal tip of each arm, each arm is constrained by the clip sleeve and each distal tip advances toward the longitudinal axis.
An endoscopic clip apparatus, comprising:
- a clip sleeve defining an interior passage along a longitudinal axis, the clip sleeve including distal end defining first, second, third and fourth openings;
- and
- a clip disposed in the clip sleeve, the clip including a first arm extending through the first opening, a second arm extending through the second opening, a third arm extending through the third opening, and a fourth arm extending through the fourth opening,
- wherein each of the first, second, third and fourth arms includes a section curving away from the longitudinal axis, and
- wherein the clip sleeve and the clip are axially moveable relative to each other along the longitudinal axis.
A method, comprising:
- providing an endoscopic clip apparatus including a clip sleeve defining an interior passage along a longitudinal axis, the clip sleeve including distal end defining first, second, third and fourth openings, and including a clip disposed in the clip sleeve, the clip including a first arm extending through the first opening, a second arm extending through the second opening, a third arm extending through the third opening, and a fourth arm extending through the fourth opening, wherein each of the first, second, third and fourth arms includes a section curving away from the longitudinal axis;
- translating the clip relative to the clip sleeve;
- constraining the arms in the clip sleeve such that the arms move toward the longitudinal axis.
An apparatus, comprising:
- a clip sleeve defining an interior passage along a longitudinal axis, the clip sleeve having a distal end with a plurality of openings defined in the distal end;
- and
- a clip including a plurality of arms disposed in the clip sleeve, each arm including a distal tip extending from the clip sleeve through one of the plurality of openings, each arm including a convex curved section oriented away from the longitudinal axis,
- wherein the plurality of arms comprises four arms, and
- wherein the clip sleeve and clip are axially moveable relative to each other such that when the clip sleeve travels over the convex curved section of each arm toward the distal tip of each arm, each arm is constrained by the clip sleeve and each distal tip advances toward the longitudinal axis.
Dependencies are inferred from the claim text.