초록 ▼

A compact, lightweight, variable rate suction and collection device is provided for the withdrawal and collection of fluid from a patient. The device includes a collection receptacle which is connected to the patient and to a pump through suction inlet, so that suction is created within the collecti

A compact, lightweight, variable rate suction and collection device is provided for the withdrawal and collection of fluid from a patient. The device includes a collection receptacle which is connected to the patient and to a pump through suction inlet, so that suction is created within the collection receptacle whereby fluids from the patient are drawn into the receptacle. A piezoelectric transducer or diaphragm pressure switch senses the suction created while a suction level selector permits an operator to select a given suction pressure within a predetermined range. A control circuit, responsive to the piezoelectric transducer or switch and to the suction level selector, controls the suction created within the receptacle. Among other features, the control circuit provides a selected suction pressure as well as controls delivery of fractional power to the pump motor to reduce noise. The entire unit including the pump and collection receptacle may be located within a carrying case so that the unit can be worn by a patient or hung at a patient\s bedside.

대표청구항 ▼

A wearable, variable vacuum level suction and collection device for the withdrawal and collection of fluid from a patient, said device comprising: at least one collection receptacle including at least one patient inlet for connection to the patient, a further, suction inlet and an outlet for emptyin

A wearable, variable vacuum level suction and collection device for the withdrawal and collection of fluid from a patient, said device comprising: at least one collection receptacle including at least one patient inlet for connection to the patient, a further, suction inlet and an outlet for emptying the receptacle; pump means, including a pump connection to said suction inlet, for creating suction within said collection receptacle so that fluids from the patient are drawn into the collection receptacle; a bacterial filter, interposed between the pump and the collection receptacle, for filtering air drawn into the suction inlet; venting means interposed between the pump and bacterial filter for venting the device; a pump motor for driving said pump; a battery powered power supply for said pump motor; a transducer for sensing the suction created; suction level selector means for permitting an operator to select a given suction pressure within a predetermined range; and a control circuit, responsive to the transducer and to said suction level selector means, for controlling the suction created within the receptacle over said predetermined range; said control circuit including means for providing a selected suction pressure dead band on both sides of the selected suction pressure which defines an upper pressure limit above which the pump motor is de-energized and a lower pressure limit below which the pump motor is re-energized.