DEVICE FOR TREATING LUMEN OF LIVING BODY
First Claim
1. A device for treating a lumen of a living body, comprising:
- a shaft configured to be inserted into the lumen of the living body;
an expansion and deflation body provided on the shaft and changeable between a deflated state and an expanded state;
wherein, in the expanded state, the expansion and deflation body includes;
at least one recessed portion configured to form a coating chamber which is substantially blocked between an inner surface of the lumen of the living body and the expansion and deflation body;
a discharge port which is provided on the recessed portion and which discharges a coating substance toward the coating chamber; and
a suction port which is provided on the recessed portion and which aspirates fluid from the coating chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for treating the lumen of a living body includes a shaft insertable into a blood vessel, and a balloon provided on the shaft and shiftable between a deflated state and an expanded state. In the expanded state, the balloon has a recessed portion configured to form a coating chamber which is substantially blocked between an inner surface of the blood vessels and the device for treating the lumen of a living body, a discharge port provided on the recessed portion to discharge a coating substance toward the coating chamber; and a suction port provided on the recessed portion to apply a negative pressure to the coating chamber.
11 Citations
20 Claims
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1. A device for treating a lumen of a living body, comprising:
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a shaft configured to be inserted into the lumen of the living body; an expansion and deflation body provided on the shaft and changeable between a deflated state and an expanded state; wherein, in the expanded state, the expansion and deflation body includes; at least one recessed portion configured to form a coating chamber which is substantially blocked between an inner surface of the lumen of the living body and the expansion and deflation body; a discharge port which is provided on the recessed portion and which discharges a coating substance toward the coating chamber; and a suction port which is provided on the recessed portion and which aspirates fluid from the coating chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for treating a lumen of a living body, comprising:
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a shaft configured to be inserted into the lumen of the living body; an expansion and deflation body provided on the shaft and changeable between a deflated state and an expanded state; wherein, in the expanded state, the expansion and deflation body includes; at least one axially extending recessed portion that includes a first inclination portion and a second inclination portion that are inclined in different directions and arranged axially adjacent one another to form a coating chamber between an inner surface of the lumen of the living body and the expansion and deflation body in the expanded state when the expansion and deflation body is positioned in the lumen and expanded to the expanded state; a discharge port on the first inclination portion and on the second inclination portion which discharges a coating substance toward the coating chamber; and wherein, in the expanded state, a connection portion of the recessed portion at which the first inclination portion and the second inclination portion are connected is disposed at a position axially deviated in a proximal end direction from a center of the recessed portion. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for treating a lumen of a living body, comprising:
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positioning an expansion and deflation body in the lumen of the living body; outwardly expanding the expansion and deflation body while the expansion and deflation body is positioned in the lumen of the living body so that the expansion and deflation body is in an expanded state, the expansion and deflation body in the expanded state including at least one recessed portion possessing an outer surface spaced from an inner surface of the lumen of the living body so that a space exists between the outer surface of the recessed portion and an inner surface of the lumen; discharging a coating substance into the space between the outer surface of the recessed portion and an inner surface of the lumen while the expansion and deflation body is in the expanded state to form a coating layer of the coating substance on the inner surface of the lumen in the living body; and deflating the expansion and deflation body and removing the expansion and deflation body from the lumen of the living body while the coating layer of the coating substance remains on the inner surface of the lumen in the living body. - View Dependent Claims (19, 20)
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Specification