Tissue cutting and stitching device and method
First Claim
Patent Images
1. A device for cutting tissue within a body lumen, said device comprising:
- a first tube extending from a proximal portion to a distal portion, wherein, in an operative position, the distal portion is located within the body lumen adjacent to the tissue to be cut;
the first tube having a side window in the distal portion thereof;
a second tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the first tube, said second tube having a second side window which, when the first and second tubes are in an alignment with respect to one another, faces the first side window so that an interior of the second tube is open to an exterior of the first tube; and
a third tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the second tube, said third tube having a third side window, wherein said third window is alignable with said first and second windows.
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Abstract
A device for cutting tissue, the device comprising a first tube having a side window; a second tube positioned within the first tube, the second tube having a side window and being movable within the first tube; a third tube positioned within the second tube, the third tube having a side window and being movable within the second tube; and a needle insertable within the second tube, the needle housing a suture. The windows in the first, second, and third tubes are alignable with each other. The invention includes methods for the cutting and suturing of tissue by using the device.
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Citations
35 Claims
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1. A device for cutting tissue within a body lumen, said device comprising:
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a first tube extending from a proximal portion to a distal portion, wherein, in an operative position, the distal portion is located within the body lumen adjacent to the tissue to be cut;
the first tube having a side window in the distal portion thereof;a second tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the first tube, said second tube having a second side window which, when the first and second tubes are in an alignment with respect to one another, faces the first side window so that an interior of the second tube is open to an exterior of the first tube; and a third tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the second tube, said third tube having a third side window, wherein said third window is alignable with said first and second windows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for cutting tissue from a body lumen, said method comprising the steps of:
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providing a device comprising; a first tube extending from a proximal portion to a distal portion, wherein, in an operative position, the distal portion is located within the body lumen adjacent to the tissue to be cut;
the first tube having a side window in the distal portion thereof;a second tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the first tube, said second tube having a second side window which, when the first and second tubes are in an alignment with respect to one another, faces the first side window so that an interior of the second tube is open to an exterior of the first tube; and a vacuum tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the second tube, said vacuum tube having a third side window, wherein said third window is alignable with said first and second windows; inserting said device into the body lumen so that the first window is positioned adjacent to a portion of tissue to be cut; aligning said first, second and third windows to form an opening in said device extending from an exterior of said first tube to an interior of said vacuum tube; sucking the portion of tissue to be cut into said opening; moving said second tube with respect to said first tube to reduce the size of said opening and grasp the portion of tissue to be cut; and moving said vacuum tube with respect to said first and second tubes to cut the grasped tissue. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for cutting a portion of tissue protruding from a body lumen, said method comprising the steps of:
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providing a device comprising; a first tube extending from a proximal portion to a distal portion, wherein, in an operative position, the distal portion is located within the body lumen adjacent to the tissue to be cut;
the first tube having a side window in the distal portion thereof;a second tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the first tube, said second tube having a second side window which, when the first and second tubes are in an alignment with respect to one another, faces the first side window so that an interior of the second tube is open to an exterior of the first tube; and a third tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the second tube, said third tube having a third side window, wherein said third window is alignable with said first and second windows; inserting said device into the body lumen so that the first window is positioned adjacent to a portion of tissue to be cut; aligning said first and second windows to form an opening in said device extending from an exterior of said first tube to an interior of said second tube; positioning said opening over the portion of tissue to be cut so that the portion of tissue extends into the opening; moving said second tube with respect to said first tube to grasp the tissue received within the opening; positioning said window in said third tube over the grasped tissue; and moving said third tube with respect to said first and second tubes to cut the grasped tissue from the body lumen. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for cutting tissue from a body lumen, said method comprising the steps of:
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providing a device comprising; a first tube extending from a proximal portion to a distal portion, wherein, in an operative position, the distal portion is located within the body lumen adjacent to the tissue to be cut;
the first tube having a side window in the distal portion thereof;a second tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the first tube, said second tube having a second side window which, when the first and second tubes are in an alignment with respect to one another, faces the first side window so that an interior of the second tube is open to an exterior of the first tube; and a third tube extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within the distal portion of the second tube, said third tube having a third side window, wherein said third window is alignable with said first and second windows; a tissue grasper extending from a proximal portion to a distal portion, wherein the distal portion is moveably mounted within said third tube, inserting said device into the body lumen so that the first window is positioned adjacent to a portion of tissue to be cut; aligning said first, second and third windows to form an opening in said device extending from an exterior of said first tube to an interior of said third tube; extending said tissue grasper through said opening; grasping the portion of tissue to be cut with said tissue grasper; pulling the portion of tissue to be cut into said opening; moving said second tube with respect to said first tube to reduce the size of said opening and grasp the portion of tissue to be cut; and moving said third tube with respect to said first and second tubes to cut the grasped tissue.
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Specification