US Patent No: 5,634,896

Number of patents in Portfolio can not be more than 2000

Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Pumping mechanisms for performing peritoneal dialysis and the like employ a pumping mechanism comprising a diaphragm that operate in response to applied fluid pressure. Flexible tubing is attached to the pumping mechanism for carrying liquid to and from the patient's peritoneal cavity. An actuating station for pumping mechanism receives the pumping mechanism and attached tubing. A pressure transfer element conveys fluid pressure to the diaphragm for moving liquid through the cassette. An occluder element contacts and crimps closed the tubing attached to the cassette. A first reservoir inflates with positive fluid pressure for contacting the pressure transfer element to hold it in operative contact against the diaphragm. A second reservoir inflates with positive fluid pressure for contacting the occluding element to hold it away from crimping contact with the tubing. At least one of the first and second reservoirs also transports fluid pressure to the pressure transfer element for conveyance to the diaphragm.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DEKA PRODUCTS LIMITED PARTNERSHIPMANCHESTER, NH433

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bouchard, Clement D Pembroke, NH 10 754
Bryant, Robert J Manchester, NH 21 1499
Kamen, Dean Bedford, NH 220 3460
Lanigan, Richard Concord, NH 21 2140
Miller, Bradley D Londonderry, NH 15 864
Spencer, Geoffrey P Manchester, NH 21 1147
Vincent, Douglas E Manchester, NH 15 1586

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BAXTER INTERNATIONAL INC. (1)
* 5,324,422 User interface for automated peritoneal dialysis systems 121 1993
 
BAXTER TRAVENOL LABORATORIES, INC. (2)
* 4,425,116 Control system for fluid flow apparatus 74 1982
* 4,425,113 Flow control mechanism for a plasmaspheresis assembly or the like 59 1982
 
Surgin Surgical Instrumentation, Inc. (1)
* 5,163,900 Disposable cassette systems 79 1990
 
NESTLE S.A. (1)
* 5,364,342 Microsurgical cassette 103 1993
 
DEKA PRODUCTS LIMITED PARTNERSHIP (3)
* 5,350,357 Peritoneal dialysis systems employing a liquid distribution and pumping cassette that emulates gravity flow 282 1993
* 5,431,626 Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure 196 1993
* 5,421,823 Peritoneal dialysis methods that emulate gravity flow 185 1994
 
I-FLOW CORPORATION (1)
* 4,950,245 Multiple fluid cartridge and pump 90 1988
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
THERAKOS, INC. (1)
* 6,491,656 Integrated cassette for controlling fluid having an integral filter 133 1997
 
WALKMED INFUSION LLC (2)
* 7,914,490 Ambulatory infusion pump assembly and housing therefor 0 2009
* 2010/0106,091 AMBULATORY INFUSION PUMP ASSEMBLY AND HOUSING THEREFOR 0 2009
 
Other [Check patent profile for assignment information] (5)
D484599 Polyclean dialysis station 0 2002
* 2005/0173,344 Medical system including vented tip protector 1 2005
* 2005/0238,497 Methods for compensating for pressure differences across valves in IV pumps 5 2005
* 2005/0235,733 Method for compensating for pressure differences across valves in cassette type IV pump 4 2005
* 8,460,234 Automatic hydrating device for invalids and the disabled 0 2006
 
FENWAL, INC. (21)
7,041,076 Blood separation systems and methods using a multiple function pump station to perform different on-line processing tasks 25 1999
6,949,079 Programmable, fluid pressure actuated blood processing systems and methods 85 1999
6,759,007 Blood processing systems and methods employing fluid pressure actuated pumps and valves 42 1999
6,723,062 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions 56 1999
* 6,481,980 Fluid flow cassette with pressure actuated pump and valve stations 54 1999
6,325,775 Self-contained, transportable blood processsing device 68 1999
6,875,191 Blood processing systems and methods that alternate flow of blood component and additive solution through an in-line leukofilter 9 2001
6,846,161 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 36 2002
* 2004/0223,857 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 1 2002
6,716,004 Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap 29 2002
* 2006/0178,612 Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap 3 2004
* 2006/0178,611 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions 2 2004
7,004,727 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 11 2004
* 2005/0118,030 Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use 0 2004
7,357,897 Blood processing systems and methods that alternate flow of blood component and additive solution through an in-line leukofilter 2 2005
* 2005/0124,927 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 40 2005
* 2005/0147,529 Programmable, fluid pressure actuated blood processing systems and methods 4 2005
* 2006/0161,092 Blood separation systems and methods using a multiple function pump station 1 2006
* 8,758,288 Gasket for use with fluid processing cassette 0 2011
* 2011/0181,004 GASKET FOR USE WITH FLUID PROCESSING CASSETTE 0 2011
 
DEKA Research & Development (2)
* 2011/0125,085 DISPOSABLE COMPONENTS FOR FLUID LINE AUTOCONNECT SYSTEMS AND METHODS 36 2009
* 2011/0092,894 PUMP CASSETTE AND METHODS FOR USE IN MEDICAL TREATMENT SYSTEM USING A PLURALITY OF FLUID LINES 32 2009
 
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH (10)
* 8,950,241 Method for checking and/or monitoring the tightness of a plurality of pneumatically or hydraulically actuated actuators, and machine, especially medical treatment machine 0 2009
* 2010/0331,768 METHOD FOR CHECKING AND/OR MONITORING THE TIGHTNESS OF A PLURALITY OF PNEUMATICALLY OR HYDRAULICALLY ACTUATED ACTUATORS, AND MACHINE, ESPECIALLY MEDICAL TREATMENT MACHINE 10 2009
8,142,653 Medical fluid cassettes and related systems 3 2009
8,377,293 Dialysis fluid cassettes and related systems and methods 0 2011
8,692,167 Medical device heaters and methods 0 2011
8,721,883 Medical fluid cassettes and related systems 0 2012
8,435,408 Medical fluid cassettes and related systems 3 2012
8,366,921 Dialysis systems and related methods 7 2012
8,926,835 Dialysis systems and related methods 0 2012
9,101,709 Dialysis fluid cassettes and related systems and methods 0 2013
 
FRESENIUS MEDICAL CARE HOLDINGS, INC. (15)
* 2006/0195,064 Portable apparatus for peritoneal dialysis therapy 91 2005
8,926,550 Data communication system for peritoneal dialysis machine 0 2006
8,870,811 Peritoneal dialysis systems and related methods 0 2006
7,935,074 Cassette system for peritoneal dialysis machine 49 2006
* 2008/0097,283 Data communication system for peritoneal dialysis machine 53 2006
7,892,197 Automatic prime of an extracorporeal blood circuit 23 2007
8,182,692 Solutions, dialysates, and related methods 0 2008
8,192,401 Medical fluid pump systems and related components and methods 2 2010
8,720,913 Portable peritoneal dialysis carts and related systems 0 2010
D645157 Heater tray for balance bag 6 2011
8,784,359 Cassette system for peritoneal dialysis machine 0 2011
9,186,449 Dialysis machine support assemblies and related systems and methods 0 2011
9,011,114 Medical fluid delivery sets and related systems and methods 0 2012
9,180,240 Medical fluid pumping systems and related devices and methods 0 2012
8,986,254 Medical fluid pump systems and related components and methods 0 2012
 
HONEYWELL INTERNATIONAL INC. (3)
7,789,851 Heating solutions for fluid media 0 2008
* 2009/0299,271 NOVEL HEATING SOLUTIONS FOR FLUID MEDIA 0 2008
7,988,666 Broadband infrared heating of medical fluids 1 2009
 
TANDEM DIABETES CARE, INC. (7)
9,211,377 Infusion pump system with disposable cartridge having pressure venting and pressure feedback 0 2010
8,926,561 Infusion pump system with disposable cartridge having pressure venting and pressure feedback 1 2010
8,758,323 Infusion pump system with disposable cartridge having pressure venting and pressure feedback 1 2010
8,287,495 Infusion pump system with disposable cartridge having pressure venting and pressure feedback 13 2011
8,298,184 Infusion pump system with disposable cartridge having pressure venting and pressure feedback 14 2011
9,180,242 Methods and devices for multiple fluid transfer 0 2012
9,173,998 System and method for detecting occlusions in an infusion pump 0 2013
 
VALERITAS, INC. (7)
7,530,968 Hydraulically actuated pump for long duration medicament administration 34 2004
9,089,636 Methods and devices for delivering GLP-1 and uses thereof 0 2005
7,914,499 Multi-cartridge fluid delivery device 19 2007
9,072,828 Hydraulically actuated pump for long duration medicament administration 0 2008
8,070,726 Hydraulically actuated pump for long duration medicament administration 10 2008
9,125,983 Hydraulically actuated pump for fluid administration 0 2010
8,361,053 Multi-cartridge fluid delivery device 0 2011
 
VALERITAS LLC (1)
8,821,443 Multi-cartridge fluid delivery device 0 2012
 
LIFELINE SCIENTIFIC, INC. (1)
D685498 Organ or tissue cradle 0 2012
 
Hospira, Inc. (5)
6,497,680 Method for compensating for pressure differences across valves in cassette type IV pump 23 1999
6,942,636 Method for compensating for pressure differences across valves in cassette type IV pump 23 2002
* 2003/0055,375 Method for compensating for pressure differences across valves in cassette type IV pump 3 2002
7,407,489 Methods for compensating for pressure differences across valves in IV pumps 10 2005
7,402,154 Method for compensating for pressure differences across valves in cassette type IV pump 10 2005
 
BAXTER INTERNATIONAL INC. (77)
6,666,665 Fluid delivery mechanism having a plurality of plungers for compressing a metering chamber 20 1999
6,270,673 Door latching assembly for holding a fluid pressure actuated cassette during use 71 1999
6,471,855 Cassette with integral separation device 47 2000
6,585,499 Fluid delivery mechanism having a flush-back operation 23 2001
7,107,837 Capacitance fluid volume measurement 48 2002
7,175,606 Disposable medical fluid unit having rigid frame 81 2002
7,153,286 Automated dialysis system 98 2002
* 7,115,228 One-piece tip protector and organizer 41 2002
7,087,036 Fail safe system for operating medical fluid valves 33 2002
6,939,111 Method and apparatus for controlling medical fluid pressure 41 2002
6,929,751 Vented medical fluid tip protector methods 73 2002
6,814,547 Medical fluid pump 138 2002
6,764,761 Membrane material for automated dialysis system 48 2002
* 2004/0010,223 Fail safe system for operating medical fluid valves 16 2002
* 2003/0217,957 Heat seal interface for a disposable medical fluid unit 28 2002
* 2003/0220,606 Compact housing for automated dialysis system 16 2002
* 2003/0220,599 One-piece tip protector and organizer 30 2002
7,238,164 Systems, methods and apparatuses for pumping cassette-based therapies 96 2002
6,953,323 Medical fluid pump 73 2003
* 7,507,220 Method for monitoring and controlling peritoneal dialysis therapy 16 2003
7,007,824 Liquid dispenser and flexible bag therefor 13 2003
* 2005/0234,384 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions 3 2004
* 2005/0234,385 Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap 30 2004
* 7,575,564 Priming, integrity and head height methods and apparatuses for medical fluid systems 14 2004
* 2005/0126,998 Priming, integrity and head height methods and apparatuses for medical fluid systems 48 2004
8,545,435 Method and apparatus for providing medical treatment therapy based on calculated demand 0 2005
7,083,719 Medical system including vented tip protector 72 2005
7,500,962 Medical fluid machine with air purging pump 50 2005
* 2006/0113,249 Medical fluid machine with air purging pump 6 2005
7,410,475 Graphical user interface for automated dialysis system 49 2006
7,815,595 Automated dialysis pumping system 52 2006
7,789,849 Automated dialysis pumping system using stepper motor 39 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
* 2007/0213,654 METHOD OF MAKING A PERITONEAL DIALYSIS THERAPY MACHINE 14 2006
8,870,812 Dialysis system having video display with ambient light adjustment 0 2007
8,558,964 Dialysis system having display with electromagnetic compliance (“EMC”) seal 0 2007
8,361,023 Dialysis system with efficient battery back-up 1 2007
7,998,115 Dialysis system having optical flowrate detection 7 2007
7,731,689 Dialysis system having inductive heating 1 2007
8,206,338 Pumping systems for cassette-based dialysis 9 2007
8,715,235 Dialysis system having disposable cassette and heated cassette interface 1 2007
* 7,957,927 Temperature compensation for pneumatic pumping system 1 2007
7,909,795 Dialysis system having disposable cassette and interface therefore 4 2007
7,901,376 Dialysis cassette having multiple outlet valve 11 2007
* 2009/0012,447 TEMPERATURE COMPENSATION FOR PNEUMATIC PUMPING SYSTEM 40 2007
* 2009/0012,461 DIALYSIS SYSTEM HAVING DISPOSABLE CASSETTE AND HEATED CASSETTE INTERFACE 44 2007
* 2009/0294,359 PRIMING SYSTEM AND METHOD USING PUMPING AND GRAVITY 9 2008
* 2009/0194,489 Blood Processing Systems And Methods That Employ An In-Line Flexible Leukofilter 2 2009
8,206,339 System for monitoring and controlling peritoneal dialysis 0 2009
8,882,700 Smart patient transfer set for peritoneal dialysis 0 2009
* 2009/0275,883 SMART PATIENT TRANSFER SET FOR PERITONEAL DIALYSIS 18 2009
* 2009/0275,881 OPTIMIZING THERAPY OUTCOMES FOR PERITONEAL DIALYSIS 17 2009
8,070,709 Peritoneal dialysis machine 9 2009
8,403,880 Peritoneal dialysis machine with variable voltage input control scheme 0 2009
8,529,496 Peritoneal dialysis machine touch screen user interface 0 2010
8,858,488 Dialysis system including blood and dialysate cassette 1 2010
* 2011/0009,797 DIALYSIS SYSTEM INCLUDING BLOOD AND DIALYSATE CASSETTE 26 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 13 2010
8,066,671 Automated dialysis system including a piston and stepper motor 21 2010
8,506,522 Peritoneal dialysis machine touch screen user interface 0 2011
8,992,462 Systems and methods for performing peritoneal dialysis 0 2011
8,328,758 Dialysis systems and methods having disposable cassette and interface therefore 2 2011
8,868,357 Temperature compensation for pneumatic pumping system 0 2011
* 2011/0218,486 TEMPERATURE COMPENSATION FOR PNEUMATIC PUMPING SYSTEM 0 2011
8,882,692 Hemodialysis system with multiple cassette interference 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 1 2011
8,376,999 Automated dialysis system including touch screen controlled mechanically and pneumatically actuated pumping 0 2011
8,900,174 Peritoneal dialysis machine 1 2011
8,932,032 Diaphragm pump and pumping systems 0 2012
8,679,054 Pumping systems for cassette-based dialysis 0 2012
8,684,971 Automated dialysis system using piston and negative pressure 0 2013
8,740,836 Pumping systems for cassette-based dialysis 0 2013
8,740,837 Pumping systems for cassette-based dialysis 0 2013
9,168,333 Dialysis system including disposable cassette 0 2014
 
KUFBAG, INCORPORATED (1)
D615191 Disposable fluid handling cassette 5 2009
 
THE COMFORT GROUP, INC. (2)
6,197,197 Method for fluid delivery in a dialysis clinic 5 1998
6,506,301 Apparatus for fluid delivery in a dialysis clinic 0 2000
 
GAMBRO AB (1)
* 2004/0215,129 Method and cycler for the administration of a peritoneal dialysis fluid 13 2003
 
DEKA PRODUCTS LIMITED PARTNERSHIP (81)
* 6,905,479 Pumping cartridge having an integrated filter and method for filtering a fluid with the cartridge 80 1999
6,877,713 Tube occluder and method for occluding collapsible tubes 90 1999
6,604,908 Methods and systems for pulsed delivery of fluids from a pump 108 1999
6,485,263 Systems for determining the volume of a volumetric chamber and pumping a fluid with a pump chamber 92 1999
6,416,293 Pumping cartridge including a bypass valve and method for directing flow in a pumping cartridge 217 1999
6,382,923 Pump chamber having at least one spacer for inhibiting the pumping of a gas 145 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 159 1999
6,663,359 Pump chamber having at least one spacer for inhibiting the pumping of a gas 101 2002
6,808,369 System for regulating fluid pump pressures 89 2002
* 7,544,179 System and method for delivering a target volume of fluid 37 2003
6,749,403 Methods for controlling a pump's flow rate by pulsed discharge 101 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 8 2003
7,632,078 Pump cassette bank 41 2003
7,632,080 Bezel assembly for pneumatic control 38 2003
7,461,968 System, device, and method for mixing liquids 35 2003
7,354,190 Two-stage mixing system, apparatus, and method 0 2003
* 2005/0095,153 Pump cassette bank 7 2003
* 2005/0095,152 Door locking mechanism 8 2003
* 2005/0095,576 System, device, and method for mixing a substance with a liquid 0 2003
* 2005/0095,141 System and method for pumping fluid using a pump cassette 36 2003
* 2004/0091,374 Pump chamber having at least one spacer for inhibiting the pumping of a gas 55 2003
7,559,524 Tube occluder for occluding collapsible tubes 53 2004
* 2005/0069,425 Tube occluder for occluding collapsible tubes 65 2004
7,421,316 Method and device for regulating fluid pump pressures 16 2004
* 2005/0118,038 Method and device for regulating fluid pump pressures 13 2004
8,292,594 Fluid pumping systems, devices and methods 28 2007
8,888,470 Pumping cassette 1 2007
8,366,655 Peritoneal dialysis sensor apparatus systems, devices and methods 9 2007
8,317,492 Pumping cassette 16 2007
8,273,049 Pumping cassette 23 2007
7,967,022 Cassette system integrated apparatus 41 2007
* 2008/0208,103 Pumping Cassette 75 2007
8,821,475 System and method for delivering a target volume of fluid 0 2007
8,491,184 Sensor apparatus systems, devices and methods 14 2008
8,246,826 Hemodialysis systems and methods 20 2008
8,042,563 Cassette system integrated apparatus 30 2008
7,853,362 Method and device for regulating fluid pump pressures 0 2008
9,028,691 Blood circuit assembly for a hemodialysis system 0 2008
8,863,772 Occluder for a medical infusion system 1 2008
8,771,508 Dialyzer cartridge mounting arrangement for a hemodialysis system 4 2008
8,562,834 Modular assembly for a portable hemodialysis system 16 2008
8,425,471 Reagent supply for a hemodialysis system 13 2008
8,393,690 Enclosure for a portable hemodialysis system 13 2008
8,357,298 Hemodialysis systems and methods 15 2008
9,248,225 Medical treatment system and methods using a plurality of fluid lines 0 2009
9,028,440 Fluid flow occluder and methods of use for medical treatment systems 1 2009
9,022,969 Fluid line autoconnect apparatus and methods for medical treatment system 1 2009
8,840,581 Disposable components for fluid line autoconnect systems and methods 2 2009
D664660 Dialysis machine 14 2009
D631548 Door for dialysis machine 13 2009
D629906 Interface for dialysis machine 13 2009
D623289 Disposable fluid handling cassette 1 2009
D616539 Disposable fluid handling cassette 13 2009
D615189 Disposable fluid handling cassette 4 2009
D615190 Membrane for fluid handling cassette 2 2009
7,766,301 Tube occluder and method for occluding collapsible tubes 13 2009
* 2009/0202,367 TUBE OCCLUDER AND METHOD FOR OCCLUDING COLLAPSIBLE TUBES 30 2009
8,409,441 Blood treatment systems and methods 19 2009
D650896 Disposable fluid handling cassette 4 2009
8,950,728 Devices and methods for occluding a flexible tube 0 2010
* 2010/0234,809 Devices and Methods For Occluding a Flexible Tube 2 2010
8,366,316 Sensor apparatus systems, devices and methods 10 2010
8,556,225 Pump chamber configured to contain a residual fluid volume for inhibiting the pumping of a gas 1 2010
D663844 Door for dialysis machine 13 2011
8,968,232 Heat exchange systems, devices and methods 0 2011
8,459,292 Cassette system integrated apparatus 17 2011
8,708,950 Medical treatment system and methods using a plurality of fluid lines 3 2011
8,499,780 Cassette system integrated apparatus 18 2011
8,721,884 Hemodialysis systems and methods 6 2012
8,545,698 Hemodialysis systems and methods 12 2012
8,992,075 Sensor apparatus systems, devices and methods 0 2012
8,992,189 Cassette system integrated apparatus 0 2012
8,870,549 Fluid pumping systems, devices and methods 1 2012
9,078,971 Medical treatment system and methods using a plurality of fluid lines 0 2012
8,926,294 Pumping cassette 1 2012
8,721,879 Hemodialysis systems and methods 11 2013
8,985,133 Cassette system integrated apparatus 0 2013
9,115,709 Fluid pumping apparatus for use with a removable fluid pumping cartridge 0 2014
9,115,708 Fluid balancing systems and methods 0 2014
9,039,395 System, method, and apparatus for utilizing a pumping cassette 0 2014
 
BAXALTA INCORPORATED (3)
6,709,412 Blood processing systems and methods that employ an in-line leukofilter mounted in a restraining fixture 11 2001
7,517,333 Blood processing systems and methods that employ an in-line, flexible leukofilter 4 2004
* 2004/0156,745 Blood processing systems and methods that employ an in-line, flexible leukofilter 17 2004
* Cited By Examiner