Over-tube, method of manufacturing over-tube, method of disposing over-tube, and method of treatment in abdominal cavity
First Claim
Patent Images
1. An over-tube which is used in combination with an endoscope having an elongated insertion section, comprising:
- an over-tube main body having a distal portion on one end of an elongated tube and a proximal portion on the other end thereof and being capable of passing the insertion section of the endoscope, the over-tube main body being inserted from the distal portion thereof into a patient'"'"'s body through a natural opening to access an abdominal cavity through a lumen wall from the distal portion thereof; and
at least one internal cover which has a tubular shape and through which the insertion section of the endoscope is inserted in a detachably inserted state in an inner cavity of the over-tube main body, the internal cover having a distal portion which is disposed in a protruded state further on a front side from the distal portion of the over-tube main body and which covers an outer peripheral surface of the distal portion of the over-tube main body, and a proximal portion protruded on a hand side from the proximal portion of the over-tube main body, so that the internal cover is extractible from the proximal portion of the over-tube main body;
wherein the over-tube main body includes a detachable portion to which the distal portion of the internal cover is detachably attached on an outer peripheral surface; and
when detaching the internal cover with respect to the over-tube main body, a state which the distal portion of the internal cover is attached on the detachable portion of the over-tube main body is released, and the distal portion of the internal cover is extractable from the proximal portion of the over-tube main body through the distal portion and the inner cavity thereof.
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Accused Products
Abstract
An over-tube for use in an endoscopic treatment in an abdominal cavity using an endoscope includes an over-tube main body which is inserted from a distal portion thereof via a natural opening in a patient'"'"'s body to access the inside of the abdominal cavity from the distal portion through a lumen wall, and an internal cover which is disposed in a passage of the endoscope disposed in an inner cavity of the over-tube main body and which is extractible from a proximal portion of the over-tube main body.
1284 Citations
33 Claims
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1. An over-tube which is used in combination with an endoscope having an elongated insertion section, comprising:
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an over-tube main body having a distal portion on one end of an elongated tube and a proximal portion on the other end thereof and being capable of passing the insertion section of the endoscope, the over-tube main body being inserted from the distal portion thereof into a patient'"'"'s body through a natural opening to access an abdominal cavity through a lumen wall from the distal portion thereof; and at least one internal cover which has a tubular shape and through which the insertion section of the endoscope is inserted in a detachably inserted state in an inner cavity of the over-tube main body, the internal cover having a distal portion which is disposed in a protruded state further on a front side from the distal portion of the over-tube main body and which covers an outer peripheral surface of the distal portion of the over-tube main body, and a proximal portion protruded on a hand side from the proximal portion of the over-tube main body, so that the internal cover is extractible from the proximal portion of the over-tube main body; wherein the over-tube main body includes a detachable portion to which the distal portion of the internal cover is detachably attached on an outer peripheral surface; and when detaching the internal cover with respect to the over-tube main body, a state which the distal portion of the internal cover is attached on the detachable portion of the over-tube main body is released, and the distal portion of the internal cover is extractable from the proximal portion of the over-tube main body through the distal portion and the inner cavity thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification