Medical suction tube and suction control apparatus for endoscope

Details Medical suction tube and suction control apparatus for endoscope Medical suction tube and suction control apparatus for endoscope

1991-07-25

1993-07-13

Lewis, Ralph

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604129, 604249, 251342, A61M 2500

Patent

active

052268853

ABSTRACT:
A medical suction tube which is opened at the distal end thereof and connected at the proximal end thereof to a suction means. A linear cut is made in the intermediate portion of the tube so as to extend obliquely from the proximal end side toward the distal end side of the tube so that, when the tube is bent, the cut is opened and ambient air is sucked into the tube through the cut, whereas, when the tube is straightened, the cut is closed and suction is performed through the distal end opening. A suction control apparatus for an endoscope utilizes the above-described medical suction tube. The suction control apparatus has a switching element for switching over the following two states form one to the other; that is, a state wherein the tube is bent with the cut facing outward and a state wherein the tube is straightened at and near the cut, so that, when the tube is bent, the cut is opened and ambient air is sucked into the tube through the cut, whereas, when the tube is straightened, the cut is closed and suction is performed through a suction port at the distal end of the endoscope.

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patent: 4737152 (1988-04-01), Alchas
patent: 5057080 (1991-10-01), Takahashi

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