Wearable ultrafiltration device
First Claim
Patent Images
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, said pump adapted to receive power from a battery;
a blood filter for filtering fluid from said blood;
a blood outlet for returning said blood to said patient;
a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid;
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
36 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, said pump adapted to receive power from a battery;
a blood filter for filtering fluid from said blood;
a blood outlet for returning said blood to said patient;
a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid;
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, 13)
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14. 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, said pump adapted to receive power from a battery;
a blood filter for filtering fluid from said blood;
a blood outlet for returning said blood to said patient;
a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid;
a second pump, associated with said blood filter for moving said fluid from said blood filter to said fluid bladder. a bladder sensor associated with said fluid bladder for sensing a fullness of said fluid bladder;
an alarm for providing an alarm indication to said patient a microcontroller for controlling the ultrafiltration device, the microcontroller receiving a full bladder signal from said bladder sensor and providing an alarm signal to said alarm if said bladder sensor senses a predetermined fullness of said fluid bladder. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. 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, said pump adapted to receive power from a battery;
a blood filter for filtering fluid from said blood;
a blood outlet for returning said blood to said patient;
a fluid bladder, in removable fluid communication with said blood filter, for collecting said fluid;
a covering about said ultrafiltration device for containing said ultrafiltration device;
a moisture sensor inside said covering for sensing moisture inside said covering;
an alarm for providing an alarm indication to said patient a microcontroller for controlling said ultrafiltration device, the microcontroller being in electrical communication with said moisture sensor, the microcontroller adapted to receive a moist signal from the moisture sensor and provide an alarm signal to said alarm if moisture is sensed inside said covering. - View Dependent Claims (24, 25, 26, 27, 28)
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29. 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, said pump adapted to receive power from a battery, said pump requiring less than XXX watts of power and being able to pump said blood at a flow rate of between 40 and 200 ml/hr. a blood filter for filtering fluid from said blood;
a blood outlet for returning said blood to said patient;
a fluid bladder, in fluid communication with said blood filter, for collecting said fluid;
said portable, wearable ultrafiltration device weighing less than five (5) pounds when being worn by a patient and being operational in any three-dimensional orientation. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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Specification