Abstract A vacuum controller for a medicosurgical suction tube is formed with a concave face aligned with a longitudinal bore through the connector. An elliptical opening passes through the concave face to the bore and an elastic band surrounds the central portion of the controller. When a medicosurgical tube assembly attached to the controller is connected to a vacuum source, a suction is not pulled in the tube assembly until the elliptical opening is closed by depressing the elastic band onto the concave face. The elastic band serves to prevent contaminating material entering the tube assembly from the control finger of the operator and suctioned material in the tube from touching the control finger of the operator.
A vacuum controller for a medicosurgical suction tube comprising a central body portion having a longitudinal axis and a pair of opposed ends transverse to said axis, an integral male connector portion extending axially from one of said ends and an integral female connector portion extending axially from the other of said ends, said body portion having a side face of concave shape, a bore extending axially through said body portion and said connector portions, an opening extending through said side face to said bore and an elastic band extending around the periphery of said central portion of sufficient width to completely cover said opening when depressed into contact with said side face.
Claim 2
Dependent Claim
113 words
A vacuum controller for a medicosurgical suction tube comprising a central body portion having a longitudinal axis and a pair of opposed ends transverse to said axis, an integral male connector portion extending axially from one of said ends and an integral female connector portion extending axially from the other of said ends, said body portion having a side face of concave shape, a bore extending axially through said body portion and said connector portions, an opening extending through said side face to said bore and an elastic band extending around the periphery of said central portion of sufficient width to completely cover said opening when depressed into contact with said side face.
Claim 3
Dependent Claim
18 words
A vacuum controller as claimed in claim 1 wherein said central body portion is of triangular cross section.
Claim 4
Dependent Claim
26 words
A vacuum controller as claimed in claim 1 wherein the effective area of said opening is greater than the smallest transverse cross-sectional area of said bore.
Claim 5
Dependent Claim
32 words
A vacuum controller as claimed in claim 1 that is permanently attached to a medicosurgical suction tube through the female connector portion and forms the proximal end section of the suction tube.