Claims
- 1. An apparatus used in combination with an endoscope, to perform at least one of ligation and suture of a living tissue of a body cavity, the apparatus comprising:
a chamber having at least one side opening; a suction system configured to draw the tissue of the body cavity into the chamber via the side opening; at least one ligating member configured to be put through the suctioned tissue; at least one puncture member having a sharp-pointed end and configured to put the ligating member through the suctioned tissue; and a holding member provided movably on the ligating member and configured to hold the tissue in at least either one of ligated state or sutured state by the ligating member.
- 2. The apparatus according to claim 1, wherein the puncture member has an internal cavity and is movable on the side opening from a first position, which is located on a proximal end side of the side opening, to a second position, which is located on a distal end side of the side opening.
- 3. The apparatus according to claim 1, wherein the chamber is a sheath having an internal cavity through which the endoscope can be inserted.
- 4. The apparatus according to claim 1, wherein the chamber is a cylindrical member detachably attached to a distal end of the endoscope.
- 5. The apparatus according to claim 1, wherein at least a portion of the chamber, which includes a vicinity of the side opening, is transparent.
- 6. The apparatus according to claim 1, wherein the suction system includes:
means for measuring a pressure inside the chamber; means for displaying the pressure measured; and control means for arbitrarily controlling the pressure inside the chamber.
- 7. The apparatus according to claim 1, wherein the ligating member further comprises:
a main body made of a wire rod having a biocompatibility; a larger-diameter portion provided in at least an end of the wire rod and having a cross sectional area larger than that of the wire rod, the larger-diameter portion being detachably fit into the distal end of the puncture member, and the holding member is movable on the main body of the ligating member.
- 8. The apparatus according to claim 1, wherein the apparatus comprises two of the puncture members, which are disposed in the chamber to be in parallel to each other with a certain interval therebetween.
- 9. The apparatus according to claim 1, further comprising a ligation manipulating device configured to move the holding member towards the distal end of the ligating member.
- 10. The apparatus according to claim 6, wherein the suction system is connected to the chamber via a suction port provided in the chamber.
- 11. The apparatus according to claim 8, wherein the ligating member further comprises:
a main body made of a wire rod having a biocompatibility; larger-diameter portions provided at both ends of the wire rod and having a cross sectional area larger than that of the wire rod, the two larger-diameter portions being detachably fit into the distal ends of the puncture members, respectively and the holding member is movable on the main body of the ligating member.
- 12. The apparatus according to claim 9, further comprising a cutting member configured to a part of the ligating member.
- 13. The apparatus according to claim 11, wherein the holding member is a cylindrical member made of an elastic material.
- 14. The apparatus according to claim 11, wherein the ligating member includes the larger-diameter portion and the main body, which can be separated from each other,
the larger-diameter portion has two side holes; the main body is movably put through the two side holes, and the holding member is made of an knot that is formed by knotting the main body itself.
- 15. The apparatus according to claim 11, wherein the holding member further comprises a first cylindrical member and a second cylindrical member,
the first cylindrical member can fit into an internal cavity of the second cylindrical member, and the main body is inserted between the first cylindrical member and the second cylindrical member.
- 16. The apparatus according to claim 11, wherein the holding member is formed of a flexible thin member having two holes,
the larger-diameter portion is located further from the holding member on the distal end side, the main body is put through the holes such as to form a loop portion on the proximal end side of the holding member.
- 17. The apparatus according to claim 11, wherein the holding member includes a first holding member and a second holding member,
the first holding member is made of a flexible thin member, and the first holding member is located further from the second holding member on the distal end side.
- 18. The apparatus according to claim 12, wherein the cutting member is provided for the holding member.
- 19. The apparatus according to claim 15, wherein the first cylindrical member includes a cutting member,
the main body is sandwiched and fixed while the first cylindrical member fitting into the internal cavity of the second cylindrical member, and the cutting member cuts the main body which is located on a further proximal end side than a portion where the main body is sandwiched and fixed.
- 20. The apparatus according to claim 1, further comprising a tissue resecting device for resecting a tissue of a body cavity, and the apparatus is used to perform at least one of ligation and suture of the tissue which has been resected with the tissue resecting device.
- 21. The apparatus according to claim 20, further comprising an injection device configured to inject a fluid into an arbitrary portion in a depth direction of the tissue.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application No. 60/378,548, filed May 8, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
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60378548 |
May 2002 |
US |