Endoscopic treatment device, and usage method thereof
AssigneesOlympus Corporation, National University Corporation Kobe University
InventorsYoshinori Morita, Kunihide Kaji, Nobuko Matsuo, Takuya Okumura
Life of this patent
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Abstract
A tissue traction device includes a first needle connected to a distal end of a first thread; a second needle connected to a distal end of a second thread; an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body including a first hole; and a tube disposed at a proximal end of the main body, wherein the second thread is inserted through the first hole to be advanceable and retractable at a position between the second needle and a distal end of the tube, and the tube and the second thread are configured to be relatively movable in a longitudinal direction of the tube.
Claims14
A tissue traction device, comprising:
- a first needle connected to a distal end of a first thread;
- a second needle connected to a distal end of a second thread;
- an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body including a first hole;
- and
- a tube disposed at a proximal end of the main body,
- wherein the second thread is inserted through the first hole to be advanceable and retractable at a position between the second needle and a distal end of the tube, and
- the tube and the second thread are configured to be relatively movable in a longitudinal direction of the tube.
A tissue traction device, comprising:
- a first thread;
- a second thread;
- an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body including a first hole;
- and
- a tube disposed at a proximal end of the main body,
- wherein each of the first thread and the second thread includes a ring-shaped portion,
- the ring-shaped portion of the first thread protrudes from the main body,
- the ring-shaped portion of the second thread protrudes from the tube,
- the second thread is inserted through the first hole to be advanceable and retractable at a position between the ring-shaped portion of the second thread and a distal end of the tube, and
- the tube and the second thread are configured to be relatively movable in a longitudinal direction of the tube.
A usage method of a tissue traction device including a first thread, a second thread, and a tube, comprising:
- fixing the first thread to a first fixation site of a luminal organ;
- fixing the second thread to a second fixation site of the luminal organ;
- forming an opening by resecting tissues between the first fixation site and the second fixation site;
- relatively moving the tube and the second thread to increase a distance between the first fixation site and the second fixation site so as to elongatedly stretch the opening, and
- performing treatment to surrounding tissues and closing the opening.
Dependencies are inferred from the claim text.