US Patent No: 5,350,357

Number of patents in Portfolio can not be more than 2000

Peritoneal dialysis systems employing a liquid distribution and pumping cassette that emulates gravity flow

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

Peritoneal dialysis systems apply fluid pressure to move liquid. The systems can emulate either a fixed head height condition or different head height conditions, independent of the actual head height differential between the patient's peritoneal cavity and the external liquid source or destination. The systems can also switch between low-relative pressure flow mode when considerations of patient comfort and safety predominate and a high-relative pressure flow mode when considerations of processing speed predominate.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DEKA PRODUCTS LIMITED PARTNERSHIPMANCHESTER, NH320

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamen, Dean Bedford, NH 149 1582
Spencer, Geoffrey P Manchester, NH 12 650
Vincent, Douglas E Manchester, NH 18 972

Cited Art

Patent Info (Count) # Cites Year
 
HOSPIRA, INC. (7)
4,828,545 Pressure responsive multiple input infusion system 84 1987
4,865,584 Cassette for programable multiple input infusion system 108 1987
4,818,186 Drive mechanism for disposable fluid infusion pumping cassette 95 1987
4,927,411 Drive mechanism for disposable fluid infusion pumping cassette 122 1987
5,000,664 Apparatus and method to test for valve leakage in a pump assembly 37 1989
5,062,774 Solution pumping system including disposable pump cassette 124 1989
5,108,367 Pressure responsive multiple input infusion system 65 1991
 
DEKA PRODUCTS LIMITED PARTNERSHIP (5)
4,778,451 Flow control system using boyle's law 140 1986
4,816,019 Infiltration detection system using pressure measurement 91 1987
4,808,161 Pressure-measurement flow control system 144 1987
4,826,482 Enhanced pressure measurement flow control system 109 1987
4,976,162 Enhanced pressure measurement flow control system 109 1989
 
BAXTER TRAVENOL LABORATORIES, INC. (3)
4,479,760 Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to applied pressures 215 1982
4,479,761 Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to externally applied pressures 271 1982
4,479,762 Prepackaged fluid processing module having pump and valve elements operable in response to applied pressures 189 1982
 
AVI, INC., (2)
4,236,880 Nonpulsating IV pump and disposable pump chamber 214 1979
4,277,226 IV Pump with empty supply reservoir and occlusion detector 136 1979
 
CORDIS DOW CORP. (2)
D271801 Artificial kidney assembly package with attached blood pump and multifunctional subassembly 25 1981
D271802 Artificial kidney assembly package with attached blood pump and multifunctional subassembly 17 1981
 
FRESENIUS AG (2)
4,552,552 Pump system for use with dialysis and like apparatus 61 1983
4,634,430 Pump arrangement for medical purposes 102 1985
 
TRITON ASSOCIATES, 681 MARKET ST., SUITE 981, SAN FRANCISCO, CA., A LIMITED PARTNERSHIP (2)
4,199,307 Medical infusion system 102 1978
4,273,121 Medical infusion system 104 1979
 
DR. EDUARD FRESENIUS CHEMISCH-PHARMAZEUTISCHE INDUSTRIE KG, APPARATEBAU KG (1)
4,240,408 Peritoneal dialysis apparatus 43 1978
 
MEDIONICS INTERNATIONAL INC. (1)
5,141,492 Method and apparatus for performing peritoneal dialysis 51 1991
 
SARCOS GROUP, A UT LIMITED PARTNERSHIP (1)
5,141,493 Peritoneal dialysis system 71 1990
 
VALLEYLAB INC. (1)
4,468,222 Intravenous liquid pumping system and method 72 1979
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (4)
4,265,601 Three valve precision pump apparatus with head pressure flowthrough protection 57 1979
4,381,003 Method and apparatus for the automatic semicontinuous peritoneal dialysis 52 1980
4,925,152 Air trap for shutting off flexible plastic tubing 31 1989
5,088,515 Valve system with removable fluid interface 238 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
BAXTER INTERNATIONAL INC. (66)
5,746,708 Peristaltic pump tube holder with pump tube shield and cover 48 1993
5,873,853 Portable pump apparatus for continuous ambulatory peritoneal dialysis and a method for providing same 22 1995
5,906,598 Self-priming drip chamber with extended field of vision 46 1995
5,938,634 Peritoneal dialysis system with variable pressure drive 143 1996
6,196,992 Portable pump apparatus for continuous ambulatory peritoneal dialysis and a method for providing same 66 1997
5,984,891 Portable pump apparatus for continuous ambulatory peritoneal dialysis and a method for providing same 38 1998
6,117,122 Foldable dialysis unit with integral pump and a method for performing solution exchange 54 1998
6,270,673 Door latching assembly for holding a fluid pressure actuated cassette during use 43 1999
6,769,231 Apparatus, method and flexible bag for use in manufacturing 5 2001
6,709,412 Blood processing systems and methods that employ an in-line leukofilter mounted in a restraining fixture 8 2001
6,905,314 Pump having flexible liner and compounding apparatus having such a pump 24 2001
7,175,606 Disposable medical fluid unit having rigid frame 37 2002
7,153,286 Automated dialysis system 36 2002
7,115,228 One-piece tip protector and organizer 19 2002
7,087,036 Fail safe system for operating medical fluid valves 16 2002
6,929,751 Vented medical fluid tip protector methods 34 2002
6,814,547 Medical fluid pump 62 2002
6,764,761 Membrane material for automated dialysis system 27 2002
7,238,164 Systems, methods and apparatuses for pumping cassette-based therapies 35 2002
6,953,323 Medical fluid pump 31 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
7,007,824 Liquid dispenser and flexible bag therefor 6 2003
7,517,333 Blood processing systems and methods that employ an in-line, flexible leukofilter 2 2004
7,575,564 Priming, integrity and head height methods and apparatuses for medical fluid systems 0 2004
7,083,719 Medical system including vented tip protector 29 2005
7,500,962 Medical fluid machine with air purging pump 18 2005
7,237,691 Flexible bag for fluent material dispenser 4 2005
7,959,594 Access disconnection systems and methods 0 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
8,298,170 Method of making a peritoneal dialysis therapy machine 0 2006
8,361,023 Dialysis system with efficient battery back-up 0 2007
7,998,115 Dialysis system having optical flowrate detection 2 2007
7,731,689 Dialysis system having inductive heating 0 2007
7,744,554 Cassette alignment and integrity testing for dialysis systems 5 2007
8,206,338 Pumping systems for cassette-based dialysis 0 2007
7,955,295 Fluid delivery system with autoconnect features 4 2007
7,957,927 Temperature compensation for pneumatic pumping system 0 2007
7,909,795 Dialysis system having disposable cassette and interface therefore 1 2007
7,905,855 Dialysis system having non-invasive temperature sensing 0 2007
7,776,006 Medical fluid pumping system having real time volume determination 2 2007
7,736,328 Dialysis system having supply container autoconnection 10 2007
7,905,853 Dialysis system having integrated pneumatic manifold 4 2007
8,262,602 Remote exchange peritoneal dialysis 0 2008
8,192,388 System and method for detecting access disconnection 0 2008
8,182,673 Drain and fill logic for automated peritoneal dialysis 0 2009
8,206,339 System for monitoring and controlling peritoneal dialysis 0 2009
8,282,829 System and method for automated data collection of twenty-four hour ultrafiltration and other patient parameters using wired or wireless technology 0 2009
7,922,911 Systems and methods for peritoneal dialysis 0 2009
8,070,709 Peritoneal dialysis machine 3 2009
8,404,091 Dialysis treatment devices for removing urea 0 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
8,377,012 Transfer sets for therapy optimization 0 2010
8,083,709 Dialysis method having supply container autoconnection 1 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
8,361,009 Medical fluid machine with supply autoconnection 0 2011
8,376,999 Automated dialysis system including touch screen controlled mechanically and pneumatically actuated pumping 0 2011
8,257,299 Dialysis methods and systems having autoconnection and autoidentification 0 2011
 
DEKA PRODUCTS LIMITED PARTNERSHIP (52)
5,474,683 Peritoneal dialysis systems and methods employing pneumatic pressure and temperature-corrected liquid volume measurements 139 1993
5,438,510 User interface and monitoring functions for automated peritoneal dialysis systems 118 1993
5,628,908 Peritoneal dialysis systems and methods employing a liquid distribution and pump cassette with self-contained air isolation and removal 129 1995
5,634,896 Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure 125 1995
6,905,479 Pumping cartridge having an integrated filter and method for filtering a fluid with the cartridge 33 1999
6,877,713 Tube occluder and method for occluding collapsible tubes 44 1999
6,604,908 Methods and systems for pulsed delivery of fluids from a pump 50 1999
6,485,263 Systems for determining the volume of a volumetric chamber and pumping a fluid with a pump chamber 47 1999
6,416,293 Pumping cartridge including a bypass valve and method for directing flow in a pumping cartridge 115 1999
6,382,923 Pump chamber having at least one spacer for inhibiting the pumping of a gas 71 1999
6,302,653 Methods and systems for detecting the presence of a gas in a pump and preventing a gas from being pumped from a pump 97 1999
6,663,359 Pump chamber having at least one spacer for inhibiting the pumping of a gas 48 2002
6,808,369 System for regulating fluid pump pressures 41 2002
6,749,403 Methods for controlling a pump's flow rate by pulsed discharge 40 2003
8,158,102 System, device, and method for mixing a substance with a liquid 0 2003
7,662,139 Pump cassette with spiking assembly 3 2003
7,632,078 Pump cassette bank 15 2003
7,632,080 Bezel assembly for pneumatic control 19 2003
7,461,968 System, device, and method for mixing liquids 13 2003
7,354,190 Two-stage mixing system, apparatus, and method 0 2003
7,559,524 Tube occluder for occluding collapsible tubes 15 2004
7,421,316 Method and device for regulating fluid pump pressures 6 2004
8,292,594 Fluid pumping systems, devices and methods 0 2007
7,794,141 Thermal and coductivity sensing systems, devices and methods 13 2007
8,366,655 Peritoneal dialysis sensor apparatus systems, devices and methods 0 2007
8,317,492 Pumping cassette 0 2007
8,273,049 Pumping cassette 1 2007
7,967,022 Cassette system integrated apparatus 10 2007
8,246,826 Hemodialysis systems and methods 1 2008
8,042,563 Cassette system integrated apparatus 9 2008
7,853,362 Method and device for regulating fluid pump pressures 0 2008
8,425,471 Reagent supply for a hemodialysis system 0 2008
8,393,690 Enclosure for a portable hemodialysis system 0 2008
8,357,298 Hemodialysis systems and methods 0 2008
D664660 Dialysis machine 1 2009
8,197,439 Fluid volume determination for medical treatment system 1 2009
D637293 Dialysis machine 0 2009
D637294 Peritoneal dialysis machine 0 2009
D631548 Door for dialysis machine 1 2009
D629906 Interface for dialysis machine 1 2009
D627470 Peritoneal dialysis machine with user interface 1 2009
D623289 Disposable fluid handling cassette 0 2009
D616539 Disposable fluid handling cassette 7 2009
D615189 Disposable fluid handling cassette 3 2009
D615190 Membrane for fluid handling cassette 2 2009
7,766,301 Tube occluder and method for occluding collapsible tubes 4 2009
8,409,441 Blood treatment systems and methods 0 2009
D650896 Disposable fluid handling cassette 1 2009
8,366,316 Sensor apparatus systems, devices and methods 0 2010
D641882 Peritoneal dialysis machine with user interface 0 2010
D663844 Door for dialysis machine 0 2011
D664255 Peritoneal dialysis machine 0 2011
 
FENWAL, INC. (18)
5,484,239 Peristaltic pump and valve assembly for fluid processing systems 18 1993
5,482,440 Blood processing systems using a peristaltic pump module with valve and sensing station for operating a peristaltic pump tube cassette 88 1993
5,868,696 Peristaltic pump tube holder with pump tube shield and cover 21 1997
7,041,076 Blood separation systems and methods using a multiple function pump station to perform different on-line processing tasks 12 1999
6,949,079 Programmable, fluid pressure actuated blood processing systems and methods 35 1999
6,759,007 Blood processing systems and methods employing fluid pressure actuated pumps and valves 22 1999
6,723,062 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions 25 1999
6,481,980 Fluid flow cassette with pressure actuated pump and valve stations 32 1999
6,325,775 Self-contained, transportable blood processsing device 51 1999
6,296,450 Systems and methods for control of pumps employing gravimetric sensing 42 1999
6,261,065 System and methods for control of pumps employing electrical field sensing 47 1999
6,875,191 Blood processing systems and methods that alternate flow of blood component and additive solution through an in-line leukofilter 4 2001
6,984,218 Systems and methods for control of pumps employing electrical field sensing 16 2002
6,846,161 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 16 2002
6,716,004 Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap 16 2002
7,004,727 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 7 2004
7,357,897 Blood processing systems and methods that alternate flow of blood component and additive solution through an in-line leukofilter 0 2005
7,195,607 Programmable, fluid pressure actuated blood processing systems and methods 22 2005
 
NXSTAGE MEDICAL, INC. (10)
6,830,553 Blood treatment systems and methods that maintain sterile extracorporeal processing conditions 32 2000
6,638,477 Fluid replacement systems and methods for use in hemofiltration 29 2000
6,638,478 Synchronized volumetric fluid balancing systems and methods 30 2000
6,595,943 Systems and methods for controlling blood flow and waste fluid removal during hemofiltration 33 2000
6,589,482 Extracorporeal circuits for performing hemofiltration employing pressure sensing without an air interface 30 2000
6,579,253 Fluid processing systems and methods using extracorporeal fluid flow panels oriented within a cartridge 50 2000
7,214,312 Fluid circuits, systems, and processes for extracorporeal blood processing 18 2003
7,776,001 Registration of fluid circuit components in a blood treatment device 1 2004
7,147,613 Measurement of fluid pressure in a blood treatment device 32 2004
7,780,619 Blood treatment apparatus 5 2008
 
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH (4)
8,142,653 Medical fluid cassettes and related systems 0 2009
8,377,293 Dialysis fluid cassettes and related systems and methods 0 2011
8,435,408 Medical fluid cassettes and related systems 0 2012
8,366,921 Dialysis systems and related methods 0 2012
 
FRESENIUS MEDICAL CARE HOLDINGS, INC. (4)
7,935,074 Cassette system for peritoneal dialysis machine 13 2006
7,892,197 Automatic prime of an extracorporeal blood circuit 8 2007
8,182,692 Solutions, dialysates, and related methods 0 2008
8,192,401 Medical fluid pump systems and related components and methods 0 2010
 
VALERITAS, INC. (4)
7,530,968 Hydraulically actuated pump for long duration medicament administration 10 2004
7,914,499 Multi-cartridge fluid delivery device 5 2007
8,070,726 Hydraulically actuated pump for long duration medicament administration 2 2008
8,361,053 Multi-cartridge fluid delivery device 0 2011
 
GAMBRO LUNDIA AB (2)
6,327,895 Method and arrangement for integrity-testing of a tube-set for use in a cycler for peritoneal dialysis 11 1999
6,530,262 Method and device for determining the existence of leaks in a system with flowing fluid 4 2000
 
HONEYWELL INTERNATIONAL INC. (2)
7,789,851 Heating solutions for fluid media 0 2008
7,988,666 Broadband infrared heating of medical fluids 0 2009
 
LIFEBRIDGE MEDIZINTECHNIK AG (2)
7,846,122 Apparatus for making extracorporeal blood circulation available 0 2005
8,187,214 Apparatus for making extracorporeal blood circulation available 0 2006
 
NOVARTIS AG (2)
7,331,462 Kit management system 0 2004
7,565,972 Medical equipment tray system 1 2007
 
EASTMAN KODAK COMPANY (1)
6,210,851 Electrophotographic toner surface treated with silica mixtures 4 1999
 
IC SENSORS, INC. (1)
5,640,995 Electrofluidic standard module and custom circuit board assembly 64 1995
 
KUFBAG, INCORPORATED (1)
D615191 Disposable fluid handling cassette 1 2009
 
MSTAGE MEDICAL INC. (1)
6,554,789 Layered fluid circuit assemblies and methods for making them 22 2000
 
NXSTAGEN MEDICAL, INC. (1)
6,673,314 Interactive systems and methods for supporting hemofiltration therapies 30 2000
 
SMITH & NEPHEW, INC. (1)
5,840,060 Fluid management system 14 1995
 
TERUMO KABUSHIKI KAISHA (1)
6,595,948 Peritoneal dialysis apparatus 47 2001
 
THERAKOS, INC. (1)
6,491,656 Integrated cassette for controlling fluid having an integral filter 60 1997