US Patent No: 4,443,333

Number of patents in Portfolio can not be more than 2000

Portable dialysis system and pump therefor

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for dialyzing blood in which blood is passed through an exchange station to transfer toxic material across a semipermeable membrane to a dialyzate. Pump means are disclosed for simultaneously pumping a plurality of liquids through the system at different flow rates. The pump means is provided with mechanism for stopping the flow of dialyzate while retaining the blood pumping capability.

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Patent Owner(s)

  • Assignment data not available. Check USPTO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mahurkar, Sakharam D 6171 N. Sheridan Rd., Suite 1112, Chicago, IL 60660 41 3053

Cited Art Landscape

Patent Info (Count) # Cites Year
 
A/S Nycotron (1)
4,190,536 Peristaltic pumping means for blood dialysis 4 1978
 
Hoechst Aktiengesellschaft (1)
4,229,299 Peristaltic dialysate solution pump 43 1978
 
HOSPAL MEDICAL CORPORATION (1)
4,334,988 Control of dialysis and ultrafiltration 12 1980
 
TAKEDA CHEMICAL INDUSTRIES, LTD. (1)
4,181,610 Blood leak detector suitable for use with artificial kidneys 66 1976

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
FRESENIUS MEDICAL CARE HOLDINGS, INC. (15)
6,960,179 Wearable continuous renal replacement therapy device 17 2001
7,597,677 Wearable ultrafiltration device 8 2002
7,645,253 Wearable ultrafiltration device 17 2004
7,309,323 Wearable continuous renal replacement therapy device 30 2004
7,854,718 Dual-ventricle pump cartridge, pump and method of use in a wearable continuous renal replacement therapy device 2 2006
7,896,829 Wearable continuous renal replacement therapy device 3 2007
7,828,761 Wearable ultrafiltration device 3 2007
7,896,830 Wearable ultrafiltration device 17 2007
7,892,196 Wearable continuous renal replacement therapy device 0 2007
8,137,299 Wearable ultrafiltration device 1 2009
8,040,493 Thermal flow meter 0 2009
8,206,331 Wearable ultrafiltration device 1 2009
8,475,399 Methods and systems for measuring and verifying additives for use in a dialysis machine 0 2010
8,597,505 Portable dialysis machine 0 2011
8,395,761 Thermal flow meter 0 2011
 
The Trustees of Columbia University in the City of New York (12)
7,727,399 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 5 2007
7,588,550 Systems and methods of blood-based therapies having a microfluidic membraneless exchange device 12 2007
8,496,606 Fluid separation devices, systems and methods 0 2009
8,083,706 Apparatus and systems for membraneless separation of fluids 2 2009
7,850,633 Systems and methods of blood-based therapies having a microfluidic membraneless exchange device 3 2009
8,097,153 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 2 2010
8,021,318 Methods of blood-based therapies having a microfluidic membraneless exchange device 2 2010
8,097,162 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 5 2010
8,092,684 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 2 2010
8,491,516 Systems and methods for membraneless dialysis 0 2011
8,257,593 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 1 2011
8,470,180 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 0 2012
 
BOSTON SCIENTIFIC SCIMED, INC. (9)
6,332,892 Medical device with one or more helical coils 27 1999
6,656,146 Medical device with tail(s) 24 1999
6,719,804 Medical stent and related methods 16 2001
6,991,614 Ureteral stent for improved patient comfort 7 2003
7,037,345 Medical stent with variable coil and related methods 10 2003
6,945,950 Ureteral stent with small bladder tail(s) 12 2003
7,291,180 Medical stent and related methods 6 2004
7,678,154 Ureteral stent for improved patient comfort 0 2006
7,951,206 Medical stent 1 2007
 
COVIDIEN AG (5)
5,403,291 Catheter with elongated side holes 82 1993
5,348,536 Coextruded catheter and method of forming 145 1993
7,090,654 Catheter with occlusion resistant tip 14 2003
7,141,035 Catheter with occlusion resistant tip 18 2003
7,776,005 Triple lumen catheter with occlusion resistant tip 1 2004
 
B. BRAUN MEDICAL, INC. (3)
7,343,224 Pharmaceutical compounding systems and methods and information management system for same 4 2003
7,317,967 Apparatus and method for transferring data to a pharmaceutical compounding system 7 2004
7,171,992 Pharmaceutical compounder 0 2006
 
NAVILYST MEDICAL, INC. (3)
6,280,423 High flow rate dialysis catheters and related methods 66 1999
6,595,966 High flow rate dialysis catheters and related methods 37 2001
7,410,602 High flow rate dialysis catheters and related methods 4 2003
 
Blue-White Industries (2)
7,001,153 Peristaltic injector pump leak monitor 4 2003
7,284,964 Peristaltic injector pump leak monitor 0 2006
 
BAXTER INTERNATIONAL INC. (1)
8,512,553 Extracorporeal dialysis ready peritoneal dialysis machine 0 2007
 
BOSTON SCIENTIFIC CORPORATION (1)
6,849,069 Medical device with tail(s) for assisting flow of urine 10 1996
 
Covidien LLP (1)
8,496,622 Catheterization system 0 2012
 
COVIDIEN LP (1)
8,187,231 Catheterization system 0 2010
 
HAEMONETICS CORPORATION (1)
6,402,702 Automatic whole blood collection system 9 2000
 
McLaughlin; William F. (1)
5,464,534 Blood fractionation system and method 9 1993
 
SCIMED LIFE SYSTEMS, INC. (1)
6,620,202 Medical stent with variable coil and related methods 21 2001
 
SHERWOOD SERVICES AG (1)
5,489,278 Catheter with elongated side openings 60 1995
 
Other [Check patent profile for assignment information] (7)
5,221,255 Reinforced multiple lumen catheter 201 1991
5,374,245 Reinforced multiple-lumen catheter and apparatus and method for making the same 164 1993
6,106,500 Hypodermic needle assembly 8 1998
6,156,013 Safety syringe 17 1998
6,206,856 Safety syringe 152 2000
7,481,797 Retractable needle single use safety syringe 2 2006
7,918,821 Universal safety syringe 3 2009