Abstract: A liquid purification arrangement comprising a housing having an ambient inlet and lineally extending exhaust passage between the housing wall and a drain pan, the housing having a liquid inlet and outlet for a liquid system disposed within the housing which system includes a pump to move the liquid in the system, a blower, an orificed, looped liquid circuit and filtering arrangement, a moveable frame support, a disinfection/rejuvenation receptacle, an ultra-violet and distillation microbial reduction arrangement, a heating and cooling storage arrangement with a collapsible-expansible storage bag and switch arrangement therefor, and a check and alternating valve arrangement.

Abstract: In a liquid purification system, a plenum defining walled housing including a blower and walled drain receptacle having protuberances to space the receptacle from the housing wall to define a lineally extending exhaust passage therebetween sized to provide sound baffling and air exhaustion, the housing further including a pair of filter casings and a pump which are mounted on a frame which absorbs vibrations of the pump independently of the housing.

Abstract: A fluid control mechanism for a fluid control system including a flexible fluid conduit with first and second gripping members to grip the conduit at preselected first and second locations, the gripping members being relatively movable to flex the conduit from a preselected minimum arc position to a maximum arc position to control the rate of fluid flow therethrough.

Abstract: A bag assembly for storing fluids including first and second placket members sized and shaped to provide a portion of enclosing walls of at least two bag members having at least one fluid inlet and outlet passage and a communicating passage therebetween with a common seam along the surrounding edges.

Abstract: A check valve for a fluid conduit line including a spaced break in a fluid conducting line with a chamber defining sleeve connecting opposed ends of the broken fluid line, the chamber having a float fluid check valve disposed therein of a specific gravity lower that the specific gravity of the fluid in the line with opposed spaced ends of the broken line being contoured to remain open to the chamber when the float valve is urged thereagainst by line pressure.

Abstract: A fluid purification system including a filter membrane, a down stream storage receptacle and a down stream tap for the fluid, the system further including ultra violet microbial reduction treating circuits upstream the storage receptacle and a microbial reduction treating circuit downstream the storage receptacle before the fluid top.

Abstract: In a fluid purification arrangement for a reverse osmosis treatment system which system includes a ported header with spaced port connections, a fluid impervious treatment container with at least one compartment and a matching ported header mounted thereto to permit connection of the treatment container to the header of the treatment system.

Abstract: In a fluid storage arrangement for a fluid storage system including a plenum defining housing having a collapsible - expansible fluid impervious storage bag and a planar switch responsive to preselected positions of the storage bag to control the volume of fluid flow to the bag, the switch including contact member(s) responsive to bag movement.

Abstract: A liquid purification arrangement comprising a housing having an ambient inlet and lineally extending exhaust passage between the housing wall and a drain pan, the housing having a liquid inlet and outlet for a liquid system disposed within the housing which system includes a pump to move the liquid in the system, a blower, an orificed, looped liquid circuit and filtering arrangement, a moveable frame support, a disinfection/rejuvenation receptacle, an ultra-violet and distillation microbial reduction arrangement, a heating and cooling storage arrangement with a collapsible-expansible storage bag and switch arrangement therefor, and a check and alternating valve arrangement.

Abstract: Support structure for a tank wherein an outer peripheral skirt member and an inner peripheral skirt member disposed in the outer skirt member are joined together along their corresponding upper and lower edges to nestingly receive a conforming lower portion of a tank to be supported by the joined together skirt members.

Abstract: A method and apparatus for purifying and/or separating fluids including passing such fluid from a feed side of a reverse osmosis unit to the product side of such unit and to an ultimate user during a purifying cycle and recirculating residual fluid back to the feed side in bypass relation to the reverse osmosis unit during a treating cycle to introduce suitable treating fluids into the system for disinfecting and rejuvenating the system.

Abstract: An implant device for peritoneal dialysis which permits a flexible catheter to be removed and replaced without invasive surgery. The catheter is passed through a substantially rigid tubular percutaneous device and a flexible sleeve member which together form a continuous conduit from the body exterior through the peritoneal wall. The catheter is associated with a percutaneous tubular device so as to be removable and replaceable through the sleeve member after implantation. The catheter preferably has a relatively weak memory which gives it a tendency to maintain a compact coiled configuration near the peritoneal wall. The catheter may extend through the percutaneous device or, more preferably, terminates within the interior cavity of the percutaneous device and is sealed from the environment by means of a septum closure within the device cavity.

Abstract: An apparatus and method are disclosed for monitoring, analyzing and quantitating in real time the concentrations of metabolites in serum by analyzing the dialysate solutions which are being equilibrated with the blood via a hemodialyzer. Thus, access to certain metabolically important species is provided without the necessity of blood sampling. The apparatus includes at least one ion-selective electrode coupled with the dialysate effluent stream, and the electrode EMF is converted to dialysate concentrations based on precalibration. The dialysate concentrations, in turn, are related to serum levels by factors governing mass transfer through the dialyzer.