Overtube with expandable tip
First Claim
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1. A translumenal overtube device, comprising:
- an elongate flexible overtube comprising a distal end, a proximal end, and a body, wherein the body defines a lumen extending the length of the overtube, and wherein the lumen is dimensioned to receive an insertion portion of an endoscope; and
a plurality of radially articulating fingers separated by notches projecting from the distal end of the flexible overtube, wherein at least one of the radially articulating fingers comprises an integrally formed cutting element recessed on an exterior surface of the at least one of the radially articulating fingers.
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Abstract
An endoscopic overtube with articulating fingers extending from the distal end. The articulating fingers form an opening that may be expanded by a balloon. When positioned in a puncture site in a tissue wall, the articulating fingers dilate and enlarge the puncture site to allow for the body of the overtube to pass through the puncture site. In various embodiments, the fingers may further comprise cutting elements to assist in the dilation of the puncture site.
1263 Citations
17 Claims
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1. A translumenal overtube device, comprising:
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an elongate flexible overtube comprising a distal end, a proximal end, and a body, wherein the body defines a lumen extending the length of the overtube, and wherein the lumen is dimensioned to receive an insertion portion of an endoscope; and a plurality of radially articulating fingers separated by notches projecting from the distal end of the flexible overtube, wherein at least one of the radially articulating fingers comprises an integrally formed cutting element recessed on an exterior surface of the at least one of the radially articulating fingers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A translumenal overtube device, comprising:
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an elongate flexible overtube comprising a distal end, a proximal end, and a body, wherein the body defines a lumen extending the length of the overtube, and wherein the lumen is dimensioned to receive an insertion portion of an endoscope; and a plurality of radially articulating fingers separated by notches projecting from the distal end of the flexible overtube, wherein at least one of the plurality of radially articulating fingers comprises an integrally formed cutting element recessed on an exterior surface of the at least one of the radially articulating fingers, wherein the distal end of the overtube has a non-articulated position and an articulated position, wherein the distal end of the overtube is tapered in the non-articulated position, and wherein a balloon is used to move the distal end from the non-articulated position to the articulated position.
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16. A translumenal overtube device, comprising:
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an elongate flexible overtube comprising a distal end, a proximal end, and a body, wherein the body defines a lumen extending the length of the overtube, and wherein the lumen is dimensioned to receive an insertion portion of an endoscope, wherein an exterior surface of the overtube comprises a gripping portion configured to assist in keeping the overtube in an orientation during a surgical procedure; and a plurality of radially articulating fingers separated by notches projecting from the distal end of the flexible overtube, wherein at least one of the plurality of radially articulating fingers comprises an integrally formed cutting element recessed on an exterior surface of the at least one of the radially articulating fingers.
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17. A translumenal overtube device, comprising:
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an elongate flexible overtube comprising a distal end, a proximal end, and a body, wherein the body defines a lumen extending the length of the overtube, wherein an exterior surface of the overtube comprises a gripping portion configured to assist in keeping the overtube in an orientation during a surgical procedure, wherein the lumen is dimensioned to receive an insertion portion of an endoscope; and a plurality of radially articulating fingers separated by notches projecting from the distal end of the flexible overtube, wherein the distal end of the overtube has a non-articulated position and an articulated position, wherein the distal end of the overtube is tapered in the non-articulated position, and wherein a balloon is used to move the distal end from the non-articulated position to the articulated position, wherein at least one of the plurality of radially articulating fingers comprises an integrally formed cutting element recessed on an exterior surface of the at least one of the radially articulating fingers.
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Specification