Wearable Ultrafiltration Devices Methods and Systems
First Claim
1. A wearable ultrafiltration apparatus, comprising:
- a first dialyzer for filtering a patient'"'"'s blood along a first fluid path;
a second dialyzer for filtering the patient'"'"'s blood along a second fluid path; and
a valve being positionable in a first position for directing the patient'"'"'s blood along the first fluid path and being positionable in a second position for directing the patient'"'"'s blood along the second fluid path;
wherein when the valve is in the first position, blood flows along the first fluid path and prevents blood from flowing along the second fluid path and when the valve is in the second position, blood flows along the second fluid path and prevents blood from flowing along the first fluid path;
wherein when the valve is in the first position, the second dialyzer is idle and capable of being serviced or replaced, and when the valve is in the second position, the first dialyzer is idle and capable of being serviced or replaced.
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Abstract
A wearable ultrafiltration apparatus is provided. The apparatus can include a first dialyzer for filtering a patient'"'"'s blood along a first fluid path and a second dialyzer for filtering the patient'"'"'s blood along a second fluid path. The apparatus can also include a valve being positionable in a first position for directing the patient'"'"'s blood along the first fluid path. The valve can also be positioned in a second position for directing the patient'"'"'s blood along the second fluid path. When the valve is in the first position, blood can flow along the first fluid path and prevent blood from flowing along the second fluid path. When the valve is in the second position, blood can flow along the second fluid path and prevent blood from flowing along the first fluid path. When the valve is in the first position, the second dialyzer can be idle and capable of being serviced or replaced and when the valve is in the second position, the first dialyzer can be idle and capable of being serviced or replaced. Therefore, when a dialyzer fouls, blood can be directed to the other dialyzer while the fouled dialyzer is being serviced or replaced.
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Citations
27 Claims
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1. A wearable ultrafiltration apparatus, comprising:
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a first dialyzer for filtering a patient'"'"'s blood along a first fluid path; a second dialyzer for filtering the patient'"'"'s blood along a second fluid path; and a valve being positionable in a first position for directing the patient'"'"'s blood along the first fluid path and being positionable in a second position for directing the patient'"'"'s blood along the second fluid path; wherein when the valve is in the first position, blood flows along the first fluid path and prevents blood from flowing along the second fluid path and when the valve is in the second position, blood flows along the second fluid path and prevents blood from flowing along the first fluid path; wherein when the valve is in the first position, the second dialyzer is idle and capable of being serviced or replaced, and when the valve is in the second position, the first dialyzer is idle and capable of being serviced or replaced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of providing ambulatory ultrafiltration to a patient, comprising:
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passing a patient'"'"'s blood through a first fluid path of a wearable ultrafiltration device; detecting a fouling of a dialyzer in the first fluid path; closing the first fluid path using a valve of the wearable ultrafiltration device;
aopening a second fluid path of the wearable ultrafiltration device to permit flow of blood through a second dialyzer. - View Dependent Claims (27)
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Specification