초록 ▼

Improvements are disclosed in liquid level sensing apparatus having a liquid replenishment line so that as liquid is expended more may be added to keep the liquid at a desired predetermined level. The apparatus is contemplated for use in the humidification of gases, particularly for the administrati

Improvements are disclosed in liquid level sensing apparatus having a liquid replenishment line so that as liquid is expended more may be added to keep the liquid at a desired predetermined level. The apparatus is contemplated for use in the humidification of gases, particularly for the administration of oxygen and the like to a patient.

대표청구항 ▼

A tube clamp assembly which comprises: an inner housing defining a first transverse slot for receiving tubing to be clamped; a hollow outer housing surrounding said inner housing and manually movable relative to said inner housing between first and second positions, said outer housing defining a sec

A tube clamp assembly which comprises: an inner housing defining a first transverse slot for receiving tubing to be clamped; a hollow outer housing surrounding said inner housing and manually movable relative to said inner housing between first and second positions, said outer housing defining a second transverse slot positioned in registry with the first slot in the first position, and spring means to bias said outer housing into the second position; clamp means positioned to releasably clamp tubing in said first slot; and means causing said clamp to so release said tubing from clamping relation when said outer housing is in the first position and to actuate said clamping relation when the outer housing is in the second position. In a humidifier for oxygen gas and the like to be administered to a patient for respiratory therapy, a liquid level sensing device for detecting a liquid level in a canister having an optical probe therein, said sensing device comprising a bracket carried by a frame, said brakcet carrying a light source and a light sensing member for determining liquid level in the canister in conjunction with said probe, and a tube clamp for controlling the flow of replacement liquid to the canister mounted in the humidifier, the improvement comprising, in combination: said bracket defining first and second parallel arms having free ends, hinge means between the parallel arms and frame to permit rotation of said bracket into and out of probe-engaging relation, whereby the canister may be removed and replaced while the bracket is out of probe-engaging relation, the first arm of said bracket being more flexible than the second arm, and snap-fit means adjacent said first arm positioned to mate with corresponding snap-fit means on the frame, to releasably retain said bracket in a position out of probe-engaging relation; said tube clamp assembly comprising an inner housing defining a first transverse slot for receiving tubing to be clamped; a hollow outer housing surrounding the inner housing and manually movable relative to said inner housing between said first and second positions, said outer housing defining a second transverse slot positioned in registry with the first slot in the first position, and spring means to bias said outer housing into the second position; clamp means positioned to releasably clamp tubing in said first slot; and means causing said clamp means to so release said tubing from clamping relation when said outer housing is in the first position and to actuate said clamping relation when the outer housing is in the second position.