US Patent No: 6,254,567

Number of patents in Portfolio can not be more than 2000

Flow-through peritoneal dialysis systems and methods with on-line dialysis solution regeneration

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Peritoneal dialysis is performed by circulating peritoneal dialysis solution through a peritoneal cavity by conveying peritoneal dialysis solution through an inlet branch into the peritoneal cavity and by withdrawing peritoneal dialysis solution through an outlet branch from the peritoneal cavity. Peritoneal dialysis solution in the outlet branch is conveyed along a first side of a porous membrane while conveying a regeneration solution containing at least one regenerating agent along a second side of the porous membrane. The membrane is configured to transport the regenerating agent into the peritoneal dialysis solution while transporting waste from the peritoneal dialysis solution into the regeneration solution, thereby creating a regenerated peritoneal dialysis solution. The regenerated peritoneal dialysis solution is circulated through the inlet branch into the peritoneal cavity.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NXSTAGE MEDICAL, INC.LAWRENCE, MA112

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brugger, James M Newburyport, MA 146 1917
Burbank, Jeffrey H Boxford, MA 112 1573
Treu, Dennis M Bedford, NH 81 1458

Cited Art

Patent Info (Count) # Cites Year
 
HHD LLC, A DELAWARE LIMITED LIABILITY COMPANY (2)
5,645,734 Dialysate separation method 28 1995
5,762,782 Water treatment for dialysate preparation 14 1997

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
BAXTER INTERNATIONAL INC. (39)
6,884,228 Automated system adaptable for use with different fluid circuits 4 2001
6,808,503 Automated system and method for pre-surgical blood donation and fluid replacement 1 2001
6,706,008 Automated system and method for withdrawing compounds from blood 27 2001
6,582,386 Multi-purpose, automated blood and fluid processing systems and methods 11 2001
7,153,286 Automated dialysis system 36 2002
6,939,111 Method and apparatus for controlling medical fluid pressure 20 2002
6,814,547 Medical fluid pump 62 2002
6,746,514 Gas venting device and a system and method for venting a gas from a liquid delivery system 12 2002
6,953,323 Medical fluid pump 31 2003
7,507,220 Method for monitoring and controlling peritoneal dialysis therapy 5 2003
7,922,686 Systems and methods for performing peritoneal dialysis 0 2003
7,867,214 Systems and methods for performing peritoneal dialysis 11 2003
7,208,092 Systems and methods for peritoneal dialysis 15 2003
7,744,553 Medical fluid therapy flow control systems and methods 9 2003
8,029,454 High convection home hemodialysis/hemofiltration and sorbent system 4 2004
7,500,962 Medical fluid machine with air purging pump 18 2005
7,410,475 Graphical user interface for automated dialysis system 16 2006
8,038,639 Medical fluid system with flexible sheeting disposable unit 0 2006
7,815,595 Automated dialysis pumping system 17 2006
7,789,849 Automated dialysis pumping system using stepper motor 8 2006
8,323,231 Method and apparatus for monitoring and controlling peritoneal dialysis therapy 0 2006
8,206,338 Pumping systems for cassette-based dialysis 0 2007
8,057,423 Dialysis system having disposable cassette 0 2007
7,909,795 Dialysis system having disposable cassette and interface therefore 1 2007
8,114,276 Personal hemodialysis system 1 2008
8,206,339 System for monitoring and controlling peritoneal dialysis 0 2009
7,922,911 Systems and methods for peritoneal dialysis 0 2009
8,070,709 Peritoneal dialysis machine 3 2009
8,357,113 Systems and methods for performing peritoneal dialysis 0 2009
8,403,880 Peritoneal dialysis machine with variable voltage input control scheme 0 2009
8,430,835 Renal therapy blood cleansing system with balance chamber and bolus, rinseback or prime volume feature 0 2010
8,172,789 Peritoneal dialysis system having cassette-based-pressure-controlled pumping 0 2010
8,075,526 Automated dialysis system including a piston and vacuum source 0 2010
8,066,671 Automated dialysis system including a piston and stepper motor 2 2010
8,328,758 Dialysis systems and methods having disposable cassette and interface therefore 0 2011
8,329,030 Hemodialysis system with cassette and pinch clamp 0 2011
8,323,492 Hemodialysis system having clamping mechanism for peristaltic pumping 0 2011
8,337,449 Dialysis system having disposable cassette 0 2011
8,376,999 Automated dialysis system including touch screen controlled mechanically and pneumatically actuated pumping 0 2011
 
SMITH & NEPHEW PLC (14)
8,257,327 Wound cleansing apparatus with actives 0 2004
7,964,766 Wound cleansing apparatus in-situ 10 2004
7,829,756 Wound cleansing apparatus in-situ 0 2004
7,794,450 Wound cleansing apparatus with heat 7 2004
8,348,910 Apparatus for cleansing wounds with means for supply of thermal energy to the therapy fluid 0 2005
8,105,295 Dressing and apparatus for cleansing the wounds 1 2005
7,883,494 Simultaneous aspirate and irrigate and scaffold 4 2005
8,235,955 Wound treatment apparatus and method 0 2006
8,162,909 Negative pressure wound treatment 0 2006
7,753,894 Wound cleansing apparatus with stress 10 2007
8,366,692 Sustained variable negative pressure wound treatment and method of controlling same 0 2009
8,398,614 Apparatus for aspirating, irrigating and cleansing wounds 0 2009
8,128,615 Wound cleansing apparatus with scaffold 2 2010
8,080,702 Wound cleansing apparatus in-situ 3 2010
 
FRESENIUS MEDICAL CARE HOLDINGS, INC. (6)
8,105,487 Manifolds for use in conducting dialysis 0 2008
8,114,288 System and method for conducting hemodialysis and hemofiltration 0 2008
8,240,636 Valve system 0 2009
8,137,553 Priming system and method for dialysis systems 0 2009
8,040,493 Thermal flow meter 0 2009
8,395,761 Thermal flow meter 0 2011
 
NXSTAGE MEDICAL, INC. (5)
7,544,300 Batch filtration system for preparation of sterile fluid for renal replacement therapy 5 2005
8,192,387 Last-chance quality check and/or air/pathogen filter for infusion systems 0 2008
7,749,393 Batch filtration system for preparation of sterile fluid for renal replacement therapy 0 2009
7,976,711 Batch filtration system for preparation of sterile fluid for renal replacement therapy 0 2010
8,202,420 Batch filtration system for preparation of sterile fluid for renal replacement therapy 0 2011
 
SEQUANA MEDICAL AG (5)
7,909,790 Implantable fluid management system for the removal of excess fluid 1 2004
8,202,248 Dialysis implant and methods of use 1 2004
7,621,886 Implantable fluid management system for the removal of excess fluid 4 2005
8,398,577 Implantable fluid management device for the removal of excess fluid 0 2007
8,394,048 Vesicular shunt for the drainage of excess fluid 0 2008
 
BLUESKY MEDICAL GROUP INCORPORATED (2)
8,303,552 Reduced pressure wound treatment system 0 2010
8,282,611 Reduced pressure wound treatment system 0 2010
 
COVIDIEN AG (2)
7,534,099 Aliquot correction for feeding set degradation 1 2005
8,360,757 Aliquot correction for feeding set degradation 0 2011
 
CEEBEN SYSTEMS, INC. (1)
7,699,799 Ultrasonic material removal system for cardiopulmonary bypass and other applications 0 2006
 
KCI LICENSING, INC. (1)
8,216,175 Therapy delivery systems and methods 0 2009
 
PIEDMONT RENAL CLINIC, PA (1)
6,758,975 Automated peritoneal dialysis system and process with in-line sterilization of dialysate 26 2002
 
RENALTECH INTERNATIONAL, LLC (1)
6,527,735 Method of peritoneal dialysis 12 2000
 
VELOMEDIX, INC. (1)
8,100,880 Automated therapy system and method 0 2008
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
6,666,842 Device and method for perfusing peritoneal dialyzing fluid 12 2001
7,842,002 Device for the extravascular recirculation of liquid in body cavities 0 2003
8,439,960 Hypothermia devices and methods 0 2008

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 3, 2013
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00