Wearable ultrafiltration device
First Claim
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1. A portable, wearable ultrafiltration device comprising:
- a blood inlet for receiving blood flow from a patient;
a pump for pumping said blood, from said patient, through said ultrafiltration device at a blood flow rate, said pump adapted to receive power from a battery;
a blood filter for filtering fluid from said blood, the rate of fluid filtering from the blood is configured to be adjusted by a combination of the blood flow rate and by controlling a continuous fluid flow from the blood filter;
a blood outlet connected to the blood filter, the blood outlet configured to receive blood from the blood filter and return the blood to the patient;
a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid, the wearable ultrafiltration device constructed and configured to operate while in various three-dimensional orientations on the body of the patient;
an alarm for providing an alarm indication to said patient;
a microcontroller electrically connected to the battery, the pump and the alarm, the microcontroller sensing a battery charge and providing an alarm signal to said alarm if said battery charge is below a predetermined level.
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Abstract
An ultrafiltration device adapted to be worn on a portion of the body of a patient includes a blood inlet tube leading from a first blood vessel, a blood pump, an anticoagulant reservoir for infusing anticoagulants into the blood, a blood filter including a substrate through which the blood is circulated and filtered, a fluid bag for storing the excess fluid and a blood outlet tube leading to a second blood vessel.
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Citations
12 Claims
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1. A portable, wearable ultrafiltration device comprising:
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a blood inlet for receiving blood flow from a patient; a pump for pumping said blood, from said patient, through said ultrafiltration device at a blood flow rate, said pump adapted to receive power from a battery; a blood filter for filtering fluid from said blood, the rate of fluid filtering from the blood is configured to be adjusted by a combination of the blood flow rate and by controlling a continuous fluid flow from the blood filter; a blood outlet connected to the blood filter, the blood outlet configured to receive blood from the blood filter and return the blood to the patient; a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid, the wearable ultrafiltration device constructed and configured to operate while in various three-dimensional orientations on the body of the patient; an alarm for providing an alarm indication to said patient; a microcontroller electrically connected to the battery, the pump and the alarm, the microcontroller sensing a battery charge and providing an alarm signal to said alarm if said battery charge is below a predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification