The following method is a “dry” method, which is more sensitive to leaks and other defects when compared to fluid based integrity testing. 21, 2009, entitled, “Peritoneal Dialysis Machine”, which is a continuation application of U.S. Pat. It is still another advantage of the present invention to provide an integrity test that does not require warm solution. Anzeigevorrichtung fuer den Membranbruch an Membranverdichtern, Verfahren und Vorrichtung zur Bestimmung von Gas in medizinischen Flüssigkeiten, Blood dialysis device has feed line provided with 2 parallel branches for single needle and dual needle operating modes, Disposablekassette mit Dichtungsmembran sowie Ventilaktor hierfür, Vorrichtung zur Behandlung einer medizinischen Flüssigkeit, APPARATUS FOR THE AUTOMATIC SEMICONTINUOUS PERITONEAL DIALYSIS. If the pressure did not fall to below 0.2 psig, the pressure was recorded and a message was logged that stated, “Timeout before PosP reached 0.20 psig”. It should be appreciated however that the teachings of the present invention are not limited to the HomeChoice® machine nor to only those machines having the same or analogous components. Further, the initial pushing of fluid through the proximal part of the patient line, nearer to the cassette, in many instances will overcome the resistance to fluid flow caused by air trapped in that portion of the line, and allow priming to thereafter take place in a proper manner. FIG. Positive pressure tested areas for the forth step are shown in double hatch and with ports 108 so marked and negative pressure tested areas are shown in single hatch and with ports so marked 108 in FIG. Your nurse will advise you if you need an extra exchange during the day. The method and apparatus use atmospheric pressure to establish a zero position relative to the therapy machine, such as an APD machine. A failure of occluder 158 to properly crimp tubing lines 54 to 66 does not materially affect the results for test steps two to five because the tip protectors are in place and would otherwise seal all of the lines that are being tested. Privacy Policy Once a dialysis therapy starts, the fluid passing through the tubing is warmed to about 37° C., enabling the occluder to perform satisfactorily. The tip protectors, shown figuratively as caps 118 on the respective ports of cassette 100, are actually at the ends of tubes 54, 58, 60, 62, 64 and 66. FIGS. FIGS. Valves A3 and B4 are closed. This application claims priority to and the benefit of U.S. patent application Ser. No. Further still, an advantage of the present invention is to be able to determine the elevational location and head height of one or more solution and drain bags. As the pioneer of home-based peritoneal dialysis (PD) therapy, Baxter has been providing PD patients with supplies to perform their treatments at home for more than 30 years. That tapping is meant to dislodge any air bubbles that are trapped in the fluid line. As indicated above, if the patient line is inadvertently clamped during priming, the pressure in the pump chamber during the pushing step would not fall to an expected level, prompting a suitable alarm. System 300 includes valves 326 and 328 connected fluidly to chamber 306 and valves 330 and 332 connected fluidly to chamber 308. Observational data only, not yet analyzed for statistical significance. Those three are marked in bolded italics. It should be appreciated however that other lines associated with other dialysis or medical fluid systems can be used alternatively with the present invention. In particular, the cassette sheeting of cassette 100 over pump chambers P1 and P2 is pressurized to +5 psig using the low positive pressure tank 220 and valves A3 and B1 shown in FIG. Fluid valves V7 and V10 are closed. 23. The difference in pressure in both positive pressure tank 220 and negative pressure tank 214 is recorded as well as the final pressure in positive pressure tank 220 and negative pressure tank 214. A third problem that occurs relatively often in priming is that the patient forgets to remove the clamp on the patient line prior to priming that line. While APD is one preferred use for the present invention, any cassette-based medical fluid system or system using a sterile, disposable fluid cartridge can employ the apparatuses and methods of the present invention. It should be appreciated, however, that the priming line may be a different line than the patient line. 19 is dissipated. First, the method employs the pumps of the medical fluid machine 150 shown above in FIG. 7 is a perspective view of cassette 100 showing that the cassette 100 includes a housing 102, which is sealed on both sides by flexible membranes 104 and 106. In FIG. – HomeChoice Automated PD System. While integrity testing poses one problem to manufacturers of medical fluid machines, another common problem is the priming of the fluid system within those machines. Another primary aspect of the present invention is an apparatus and method for determining the vertical position or head height of one or more solution bags as well as a drain bag. Positive pressure tested areas for the second step are shown in double hatch and with ports 108 so marked and negative pressure tested areas are shown in single hatch and with ports 108 so labeled in FIG. 8 is a portion of a cross section taken along line in FIG. In each of test steps two through five of FIGS. Valves V7 and V10 are then closed. The test consists of the following steps: (i) a negative pressure decay test of the fluid valve diaphragms is performed; (ii) a positive pressure decay test of the fluid valve diaphragms is performed; (iii) a positive pressure decay test is performed on the first pump chamber, while a negative pressure decay test is performed on the second pump chamber; (iv) a negative pressure decay test is performed on the first pump chamber, while a positive pressure decay test is performed on the second pump chamber; after which. When the drain line was clamped after the software instructed the operator to do so, forty-seven of the fifty tests no longer failed indicating that the leak was in the cassette and not the therapy machine. Valve V1 is opened and a second set of simultaneous pressure decay/rise tests is conducted on low positive pressure tank 220 and negative pressure tank 214 as the contents of pump chamber P2 flow freely into pump chamber P1 through open valves V1 and V3. Additionally, external valve chamber walls 112 and internal valve chamber wall 114 are illustrated, which cooperate to produce one of the valves V1 to V10 on one side of divider 110 of cassette 100. If the pressure equivalent to that exerted by columns of solution of heights Y1 and Y2 is within a predetermined operating parameter for the medical fluid therapy system 300 (e.g., an APD system), the therapy is allowed to continue. The pneumatic source of positive pressure used in FIG. Baxter, Amia, Homechoice and Sharesource are trademarks of Baxter International Inc. USMP/MG91/17-0009(1) 01/18.
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