ULTRASOUND PATIENT INTERFACE DEVICE
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United States of America Patent
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Issued Date -
Feb 7, 2008
app pub date -
Sep 21, 2006
filing date -
Aug 2, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An ultrasound coupling device for acoustically coupling an ultrasound transducer with a patient's body comprises a fluid chamber having an ultrasound transducer interface for placing an ultrasound transducer in contact with water within said fluid chamber. The coupling device also has a patient interface comprising a water permeable membrane. The membrane has an internal membrane surface which is in contact with the water in the water tank and an external membrane surface can be placed in contact with the patient's body. The membrane is specially designed to allow water from inside the water tank to slowly permeate or 'leak' to the external membrane surface while such surface is in contact or placed in very close proximity to the patient's skin. The slow permeation rate maintains the external membrane surface wet and free of air bubbles during a procedure which can take several hours. At the same time, the slow rate of permeation does not cause any water spillage around the patient.
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