MULTICHANNEL INFUSION SYSTEM FOR RENAL REPLACEMENT THERAPY
First Claim
1. A multichannel infusion system for use with a hemofilter, the system comprising:
- a first measurement device configured to measure the weight of a replacement fluid contained in a first receptacle;
a first pumping module configured to accept a first desired flow rate and deliver the replacement fluid from the first receptacle to the hemofilter at the accepted first desired flow rate;
a second measurement device configured to measure the weight of an ultrafiltrate contained in a second receptacle;
a second pumping module configured to accept a second desired flow rate and remove the ultrafiltrate from the hemofilter to the second receptacle at the accepted second desired flow rate; and
a control system in communication with the first and second measurement units and the first and second pumping modules, the control system configured to adjust the first and second desired flow rates based on the measurements made by the first and second measurement devices.
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Accused Products
Abstract
A multichannel infusion system for use with a hemofilter includes first and second measurement devices that measure the weight of a replacement fluid in a first receptacle and an ultrafiltrate in a second receptacle, a first pumping module configured to accept a first desired flow rate and deliver the replacement fluid from the first receptacle to the hemofilter at the accepted first desired flow rate, a second pumping module configured to accept a second desired flow rate and remove the ultrafiltrate from the hemofilter to the second receptacle at the accepted second desired flow rate, and a control system in communication with the first and second measurement units and the first and second pumping modules. The control system is configured to adjust the first and second desired flow rates based on the measurements made by the first and second measurement devices.
43 Citations
14 Claims
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1. A multichannel infusion system for use with a hemofilter, the system comprising:
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a first measurement device configured to measure the weight of a replacement fluid contained in a first receptacle; a first pumping module configured to accept a first desired flow rate and deliver the replacement fluid from the first receptacle to the hemofilter at the accepted first desired flow rate; a second measurement device configured to measure the weight of an ultrafiltrate contained in a second receptacle; a second pumping module configured to accept a second desired flow rate and remove the ultrafiltrate from the hemofilter to the second receptacle at the accepted second desired flow rate; and a control system in communication with the first and second measurement units and the first and second pumping modules, the control system configured to adjust the first and second desired flow rates based on the measurements made by the first and second measurement devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of filtering a patient'"'"'s blood using a hemofilter, the method comprising the steps of:
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measuring a weight of a replacement fluid in a first receptacle; measuring a weight of an ultrafiltrate in a second receptacle; initiating delivery of the replacement fluid from the first receptacle to the hemofilter at an first desired flow rate and removal of the ultrafiltrate from the hemofilter to the second receptacle at an initial second desired flow rate; and automatically adjusting the first and second desired flow rates based on the measurements of the replacement fluid and removed ultrafiltrate in the first and second receptacles. - View Dependent Claims (12, 13, 14)
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Specification