JPH0286561U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a tubular organ expansion device according to an embodiment of the present invention, FIG. 2 is a diagram showing the expanded and reduced diameter shape of the expansion member in the expansion device,
The figure is a cross-sectional view showing an insertion guide device used when inserting a tube into a tubular organ, FIG. 4 is a partial cross-sectional view showing the fiberscope tip inserted through the tube of the expansion device, and FIG. A partial cross-sectional view showing the state in which the tube of the expansion device is inserted, FIG. 6 is a partial cross-sectional view showing the state in which the expansion member is pushed out from the tip of the tube within the bronchus, and FIG. 7 is a partial cross-sectional view showing the state in which the expansion member is pushed out completely into the bronchus. FIGS. 8, 9, 10 and 11 are perspective views showing other examples of the expansion member used in the tubular organ expansion device according to the present invention, and FIG. 12 is a partial sectional view showing the expanded state. FIG. 13 is a partial cross-sectional view of a main part of a tubular organ expansion device according to another embodiment of the present invention, FIG. 13 is a partial sectional view showing the state in which the tip of the fiberscope is inserted through the tube of the expansion device, and FIG. 15 is a partial sectional view showing the state in which the tube is inserted, FIG. 15 is a partial sectional view showing the state in which the expansion member is pushed out from the tip of the tube within the bronchus, and FIG. 16 is a partial sectional view showing the state in which the expansion member is pushed out completely into the bronchus. FIG. 17 is an explanatory diagram showing an example of a conventional bronchodilation surgery, FIG. 18 is a cross-sectional view showing a state where the bronchus is occluded, and FIG. 19 is a stent inserted into the occluded bronchus in the above surgery. FIG. In the figure, 21 is a tube, 22 is an expansion member, 23
is a pusher, and 32 is an expansion member.

Claims (1)

[Scope of claims for utility model registration] (1) A tube inserted into a tubular organ of the human body;
The expansion member includes an expansion member inserted into the tube and a pusher that pushes the expansion member out from the tip of the tube, and when the expansion member is pushed out into the tubular organ, the expansion member is reversely transformed by body temperature and expanded into an expanded shape. A tubular organ expansion device characterized by being made of a shape memory alloy. (2) a tube inserted into a tubular organ of the human body;
The tube includes an expansion member inserted into the tube and a pusher that pushes the expansion member out from the distal end of the tube. 1. A tubular organ expansion device characterized by having elasticity that allows it to return to its substantially original coil shape after being stretched to the extent that it can be inserted into the body.