Therapeutic suction device
First Claim
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1. A therapeutic suction device for suctioning a patient'"'"'s body cavity and comprising:
- means defining a vacuum chamber,a vacuum pressure source, a solenoid valve between said vacuum chamber and said source,electrically controlled means for said vacuum pressure source and including a control circuit, means for detecting the pressure in said vacuum chamber,limit switch means in said control circuit and responsive to said vacuum pressure detecting means,tube means for insertion into a patient'"'"'s body cavity and including inlet valve means,container means for receiving liquid suctioned by said tube means,a chamber of variable volume communicating with said vacuum chamber, said variable volume chamber having a fixed end and a movable end, said detecting means including means for operating said limit switch as a result of movement by said movable end of said variable volume chamber.
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Abstract
A therapeutic suction device includes an operating vacuum chamber connected to a motor operated pump to create a vacuum pressure therein and a pressure controlling means to maintain a predetermined pressure in the vacuum chamber. The vacuum pressure in the operating vacuum chamber can be pre-arranged so as to provide a suction force by a pressure difference even when there is a shortage of electricity.
63 Citations
7 Claims
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1. A therapeutic suction device for suctioning a patient'"'"'s body cavity and comprising:
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means defining a vacuum chamber, a vacuum pressure source, a solenoid valve between said vacuum chamber and said source, electrically controlled means for said vacuum pressure source and including a control circuit, means for detecting the pressure in said vacuum chamber, limit switch means in said control circuit and responsive to said vacuum pressure detecting means, tube means for insertion into a patient'"'"'s body cavity and including inlet valve means, container means for receiving liquid suctioned by said tube means, a chamber of variable volume communicating with said vacuum chamber, said variable volume chamber having a fixed end and a movable end, said detecting means including means for operating said limit switch as a result of movement by said movable end of said variable volume chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification