JP3404075B2 - Bag for holding concentrate - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention has a bag body, at least one opening and a plug-type connector for use with the bag and is a solid or fluid preparation for the preparation of dialysis fluid for use in a dialysis machine. And a method of using the bag for containing the concentrate of.

[0002]

2. Description of the Prior Art Usually, with hemodialyzers used today, the concentrates used for the preparation of dialysis fluid are prepared in the factory and transported in the canister to the user. Both the preparation and transportation of such a canister filled with fluid concentrate is expensive. The reason is that in fact, only water is transported from the manufacturer to the patient, and an empty canister presents an environmental problem. Of particular concern is the storage and transportation of canisters filled with bicarbonate concentrates. This is because the canister swells due to the release of carbon dioxide and becomes in an overpressure state. Thus, the problem of explosion when the canister is improperly handled is in such a swollen container.

Therefore, clinical systems have been proposed which have a ready-to-use dialysis fluid made available or a powdery concentrate, especially a bicarbonate concentrate, mixed with water.

The first type of system comprises a centrally known central dialysis fluid supply system, which supplies dialysis fluid in a circuit, especially for a plurality of dialysis machines in a hospital.

On the other hand, a powdered concentrate is also supplied, which is connected via a pipe system with a dialysis machine on one side and on the other hand via a water source and a water line. Fresh bicarbonate concentrate is made available online with such a system that can be fed directly to the dialysis machine without significant emission of carbon gas. Such a system is described, for example, in EP A1-0,278,100 and
A1-443,324.

Since such containers must be replaced frequently, simple attachment and removal of such containers using a coupling system is convenient. However, such a system is not described in the two European patents mentioned.

Furthermore, a dialysis machine, which can be connected with various concentrate or dialysis fluid supply arrangements, for example in a simple connection arrangement, connects the dialysis machine from the central supply device to the bag containing bicarbonate powder. It is convenient to be possible.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple and safe bag for containing and pretreating dialysis fluid from solid and / or fluid concentrates, thereby dialysis. The haulage of concentrate used by the machine is reduced to a minimum.

Another object of the present invention is to connect a bag of dialysate to a dialysis machine using a coupling or connector having a plug-type connector or pusher and a mating pusher that is easy and safe to use. Is to provide a method.

[0010]

The first object is achieved by the combination of the features of claim 1. Dependent claim 2
6 to 6 show additional useful designs for the bag of the present invention. Its second object is achieved by claims 7 and 8.

For plug-in connectors, in particular for the plug components on the side of the device of the second embodiment, the priority of German utility model G 92 17 989.4 is claimed.

The bag of the present invention is usually made of, for example, PVC, PV.
It is made of a flexible material such as P or polyethylene. The plug-type connector, which is arranged directly on the body of the bag, ie on the wall of the bag, replaces the conventional conventional hose connection between the dialysis machine and the container of concentrate. Therefore, the duct passage is successfully shortened. The bag is easily replaced by the plug-in connector and clamps securely on the dialysis machine.

The particular advantage of the bag of the invention in which the container of concentrate which allows the inflow of water and the withdrawal of the diluted concentrate is connected to the dialysis machine by a single connection must be considered.

It is preferred that the incoming water be filled with the concentrate to be diluted as the incoming fluid is passed through the flow passages or tubes into the body of the bag. The diluted concentrate is directed to the dialysis machine via a tube which projects inside the bag and which has a filter on its suction end. A plug-type connector, that is, a connector having a push-in portion and a mating push-in portion, can be arranged in parallel and concentrically with each other for the inflow and outflow solutions. When arranging the flow passages in the plug arrangement in a concentric arrangement, it is also convenient if the inlet and outlet are arranged in parallel with the plug component or pusher on the side of the bag.

In the preferred embodiment, the bag of the present invention has a marking on its plug component that characterizes the contents of the individual bag in each case. It is thus ensured that the correct concentrate container is always connected to the correct fluid line of the dialysis machine. It is preferably covered by a locking cap until use to prevent damage or contamination of the bag side plug components during shipping.

The pluggable connector of the present invention has many important advantages. The valve element, which is movably incorporated into the valve chamber of the mating pusher body, makes it possible to provide different working states of the plug-type connector. Thus, for example, a fluid intake channel or fluid supply passage and an outlet channel or fluid discharge passage may be
It is short-circuited in the closed position of the second plug component on the machine side, ie the mating push-in. The reason for this is that the movable valve element causes the second plug component towards the input side, i.e. towards the side on which the first plug component or pusher part on the bag side is mounted, by means of a preloaded compression spring. Because it is pushed. Conversely, when the bladder is installed, the valve element is separated from the input side against the pressure of the spring. Thus, according to the invention, when the concentrate container is installed, the first and second flow passages are sealed off from each other by the movement of the valve element or sealing means.

On the second plug component on the device side there is a cleaning cap that pushes against the spring stress in order to completely sterilize the second plug component before using the concentrate container or bag. Can be slipped in. Within the cleaning cap, the first and second flow passages are short circuited to ensure complete cleaning and sterilization of the second plug component.

According to another embodiment of the invention, the second plug component has an additional fluid intake channel or flow passage which can be connected to an additional concentrate container.
However, this second intake channel or flow passage is connected to the valve chamber only when the movable valve element is in the closed position. When the bag is installed, this second intake flow passage is sealed from the valve chamber by the sealing means attached to the valve element. Thus, in any case, only one concentrate container is reliably connected to the dialysis fluid flow passage by the plug-in connector.

This socket thus makes it possible to design a dialysis machine which can be used in all cases, whereby very different supply systems can be connected by means of only one plug-type connector. This leads to a reduction in the cost of the device. Furthermore, it is very convenient that there is only one socket that has to be cleaned and serviced.

In the plug-type connector of the present invention, both the intake and discharge flow passages are opened from the wall of the socket body into the valve chamber, and the flow passage is short-circuited depending on the position of the movable valve element. Separated from each other. However, according to a second embodiment of the present invention, a sealing liner can be inserted into the valve chamber and the second plug component then has a flow passage extending through the socket body and the sealing liner. Then, connect the valve chamber from the opening of the sealing liner. Again, in this embodiment only the position of the valve element affects either the short circuit or the separation of the two fluid flow passages.

The valve element can be made in one piece with the shank element against which the compression spring is placed. Alternatively, the valve element can be moved by a push rod connected to the shank element.

In the sealing arrangement of the invention, the insertion of the plug component on the side of the bag causes the sealing by moving the valve element to a position which is in each case determined by the first plug component on the side of the bag. It is very simple to engage the stop means to automatically switch the plug components on the side of the device. When the bag is not attached, the valve element is carried to its closed position by a resilient element, preferably a compression spring.

The sealing means are spaced apart and in each case are inserted into the channels of the ring, at least two.
Either one O-ring or at least one movable O-ring is provided, whereby the O-ring is in each case engaged with the cylindrical region of the valve element. By these sealing means, the plug component on the side of the device is tightly sealed against the inlet side in the closed position when the bag is attached, while at the same time effectively separating the two flow passages.

Furthermore, a valve chamber extending between the valve element and the end part of the plug component on the device side facing the inlet side is provided with two partial compartments with respect to the elastic element by means of an elastic wall. It may be expedient if it is divided into two parts, whereby one sub-chamber accommodates the elastic element and the other sub-chamber provides fluid uptake. In this way, contamination of the elastic elements or of the fluid is prevented and the cleaning of the connecting liners is considerably simplified. Via the plug arrangement according to the invention, the dialysis machine can not only be connected to a bag with a solid or fluid concentrate, but also for example with a central concentrate supply. Water or an aqueous solution can be used as a solution; however, only water is described below.

Since only one flow passage is required, the plug for connecting to the central concentrate supply can be designed like a regular plug in the form of a tube. However, the concentrate can also be connected by the second feed flow passage of the second plug component provided in the preferred embodiment of the present invention.

With the double lead hole concentrate plug, the water supplied to the plug connector and bag is first introduced into a solid or fluid concentrate, eg bicarbonate powder, and then dissolved concentrate, eg The saturated bicarbonate solution returns through the plug connector and is sent to the dialysis machine. The flow passages that can be used, i.e. the flow passages between the plug connector and the dialysis machine, can be designed at least partially concentrically, i.e. with inner and outer tubes, and also two parallel flow passages. It can also be equipped with.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a plug component will be described below with reference to FIGS. The plug connector is made up of first and second plug components by which the first plug component (plug component on the side of the bag) is connected to the bag of concentrate; the second plug component The (plug component or coupling socket on the side of the machine) is placed on the dialysis machine.

The plug component has a second machine-side plug component or mating pusher 10, which will be described below as a mating pusher, which is arranged on the dialysis machine. The mating pusher body 10 comprises a substantially cylindrical recess 14 extending over the length of the mating pusher body 12 having different diameters in small areas.
Have.

Behind its free insertion end 16 facing the inlet side, the recess 14 has a groove 18 which forms part of a pawl stop, and a bag-side pusher 20 in a position as will be explained below. To fix. Further, the sealing ring 22 is properly provided inside the recess 14 to seal the pushing portion on the side of the bag in a state of being connected to the outside.

A valve chamber 26 having a relatively large diameter is provided in the central portion 24 of the recess 14 and an elastic wall 28 extends perpendicularly to the main axis of the socket body 12. For this purpose, the socket body 12 is divided into two socket parts 30 and 32,
As a result, the wall 28 can be extended into the joint 34 by bolts 36, as seen in FIG. Therefore wall 28 is a wall
Valve chamber whose volume can be changed by moving 28
Is divided into a left half 38 of the compartment and a right half 40 of the compartment.

The outlet channel 42, which can be connected to the dialysis fluid system (not shown) of the dialysis machine, is located in the left half of the compartment.
It's out of 38. Half of this valve chamber on the other side
38 couples the flow via a cylindrical recess 14 with an inlet channel 44 opening into the recess 14 in a region 45 delimiting the half 38 of the valve chamber.

As can be seen in FIGS. 1 to 3, on both sides of the inlet channel 44 ring-shaped sealing arrangements 46, 48 are arranged in each case in the form of O-rings.

Furthermore, a valve element 50 having a cylindrical end region 52 at its rear end is arranged in the recess 14 and is separated from the element 50 and the end region 52 by a flexible wall 28. The valve element 50 itself has a generally cylindrical front region 54 and a conical region 56 tapering rearward. The conical region 56 has a spring-shaped elastic element 60 arranged in the end region 62 of the recess 14 abutting against its end and joined to a shaft 58 forming a cylinder-shaped end region 52. To be done. Mounted on the shank 58 is a magnet 64 that operates in conjunction with a reed switch 66 located in the socket portion 32.
And the magnet 64 and reed switch 66 form a sensor 68 that can monitor the coupling process.

FIG. 1 shows a working condition in which the pushing part 20 on the bag side cannot be found in the recess 14. That is, the spring 60 pulls the valve element 50 against the right half 40 of the compartment and preloads it further to the left than is possible with the stop 70 surrounding the shank 58. Thus, the cylindrical front area 54 of the valve element 50 is in sealing contact with the left ring sealing arrangement 46, closing the inlet channel 44 to the surroundings. This position is called the closed position.

On the other hand, because of the conical arrangement of the conical areas 56, a ring-shaped space is created in the area of the inlet channel 44 and a flow connection with the outlet channel 42 is provided to the left of this ring-shaped space and the valve chamber. Made through half 38. Therefore,
It is possible to wash the coupling socket 10 and the dialysis machine with water or a germicidal solvent.

FIG. 2 shows that the plug 72 on the side of the bag shown in FIG.
FIG. 6 shows the operating state in which the pawl stop means 74 arranged above is engaged with the pawl stop recess 18. According to the embodiment shown in FIG. 5, the plug 72 on the bag side is designed with a double guide hole and opens towards the rear handle part 79, between which a ring-shaped groove 80 is formed. An inner tube or inner flow passage 76 and an outer tube or outer flow passage 78. This ring-shaped groove 80 defines a front recess 82 penetrating the outer surface of an outer tube 78 which successfully surrounds the end of the first plug component 72 facing the ring-shaped mating socket 12. Have. Handle part 79, channel 80
Open toward the first opening 84.

A central channel 86 exiting from the front end 88 through an opening 90 whose end faces the socket body 12.
Pass through the inner tube 76 and open in the handle portion 79 towards the opening 92.

As shown in FIG. 2, in the connected state, water flows from the inlet flow passage 44 to the bag 100 through the opening 82, the flow passage 80, the opening 84 (see FIG. 5), and the flow passage 96. , Where the bicarbonate can be dissolved. Since the bag 100 is sealed, the bicarbonate solvent flows through the filter 102 and the channel 98 and returns to the plug or pusher 72, where the flow path
86 through the openings 92 and 90, from which it reaches the left half 86 (see FIG. 5) of the compartment that flows into the outlet flow passage 42. This provides a circuit through the connector arrangement of the present invention, which creates a mixture of water and bicarbonate to prepare the bicarbonate concentrate.

The front end 88 surrounding the ring-shaped opening 90 is
... as seen particularly in Figures 1, 4, and 5 ... valve element 50
It is engaged with a plurality of protrusions 108 arranged in an upper circle. Thus, fluid can flow through the valve element 50 into the left half 38 of the compartment between the protrusions 108 when the plug is engaged.

Further, FIGS. 1, 2 and 5 show that the plug 72 in the connected state is in flow communication with the inlet channel 44 through the opening 82, resulting in two ring-shaped closures on both sides above the opening 82. Configurations 46 and 48 are shown sealing outer tube 78. On the other side, the front opening 90 of the plug 72 is on the far side of the innermost ring-type closure arrangement 48 on the side of the left half 38 of the compartment and is therefore in flow connection with the opening 82. Not directly (only possible via the bag 100).

FIG. 2 also shows schematically that the magnet 64 in the connected state can be shown to be in the operatively mounted position of the plug 72 with the reed switch 66 and thus the sensor 68 actuated.

FIG. 3 shows the operating condition with the plug component 110 inserted in the coupling socket 10. The plug element 110 is made solely of a tube 112 and additionally has a grip element 114 for engaging the grip channel 18. The plug component 110 is dimensioned so that it further extends beyond the innermost ring-shaped sealing configuration 48 in the mated condition and, in addition, works with the protrusion 108 of the valve element 50 to Move 50 back towards spring 60. Accordingly, the opener front opening 116 is also in flow communication with the outlet channel 42. The other end 118 can be connected to the concentrator via a hose or tube (not shown). In this case, the water source is (inlet channel 44
Closed).

Furthermore, FIG. 3 shows that a central axially projecting projection 120 is arranged on the valve element 50, which extends in a joined state without completely sealing the opening 116. And also shows the opening of a check valve 122 located therein and located in the tube 112.

Also in FIG. 3, after the plug component 110 has been fully mated and secured, the sensor arrangement 68 is actuated in a manner similar to the actuated state of FIG. 2 to complete the operative installation of the plug component 110. Tell what you did.

In accordance with another exemplary embodiment of the present invention shown in FIGS. 6-8, a flexible bag having bicarbonate powder is replaced by a suitable first plug component to a second plug component. Connectable so that fluid is supplied to the bag,
It is claimed that the bicarbonate is removed therefrom via the plug component. The structure of the socket body and the valve chamber, in particular the right half of the valve chamber with the control element, is similar to the embodiment of the invention described above. As a result, the difference between the embodiment of FIGS. 1 to 5 and the input part of the first plug component, as well as the second plug component, will be explained below. The inlet portion 230 of the socket body 212 is the first plug component 22 of the bicarbonate bag 200 to which it is attached.
Face 0. This side is referred to below as the inlet side 216. The outlet portion 232 of the socket body 212 connects on one side with the inlet portion 230 of the socket body; the channels 244a and 242 have opposite faces 20 which will be referred to as outlet sides below.
There is an opening in 5.

At the inlet portion 230, the sealing liner 209 and valve liner 250 are mounted. The sealing liner is mounted immovably. It is the inflow channel 244
Central hole 244c extending in the longitudinal direction as a continuation of a and b
Have. From the central hole 244c, a connecting channel 244b extends to the channel portion 244a, whereby the channel portion 244a is incorporated into the wall of the socket body 212. In this way, a perfect fluid connection is obtained from face 205 to sealing liner 209.
Made all the way across the central hole 244c. The portion of the central hole 244c between the channel portion 244b and the end of the sealing liner 209 is sealed by the sealing stop 211. The end of the central hole facing the inlet side opens into a lateral hole 213 extending parallel to the inlet side 216. Face 215 terminates in a sealing liner 209 on the inlet side.

A sealing liner 209 is formed on its end facing the outlet side 205 and fits sealingly within the hole 214. An O-ring 207 is inserted between the backing in the socket body 212 for a secure seal. Hole 21
Between the outlet of the channel 242 and the inlet side 216 for discharging the fluid to 4, the diameter of the sealing liner 209 is significantly reduced. Sealing liner and socket body entrance 230
The intermediate space created in the valve chamber 226 between and is filled so as to be partially sealed by a movably arranged valve element, namely a cylinder-type valve sleeve 250.

Similarly, valve sleeve 250 has portions of various diameters. The first ring-shaped portion 217 extends from the inlet side into the hole 214. This portion has a much smaller diameter than the hole 214. The surface of the portion 217 facing the inlet side serves as a stop surface 219 for the bag side plug components. The first ring-shaped portion 217 follows on the side remote from the stop surface 219 by a ring-shaped portion 221 which is sealingly inserted in the hole 214. An O-ring 22 inserted into the socket body between this portion 221 and the socket body 230
2 tightly seals the device side plug component 210 to the outside. The third ring-shaped part 223 is the outer part
Form the end of the valve backing 250 facing 232.
The diameter of this portion 223 is chosen so that it fits snugly into the corresponding clearance within the aperture 214. In contrast to the embodiment described in FIGS. 1 to 4, here a valve element
The 250 is not designed as one piece that leans on the spring. Instead, the spring force is now transmitted to the valve element 50 via the magnetic liner 252 and the stop 254. valve·
The liner 250 is installed with appropriate play on the sealing liner 209 so that it can be moved without difficulty, leaving more room for the passage of fluid.
The thickened portion 225 of the valve liner 250 fits snugly with the sealing liner 209 only in the respective regions of the first and / or second ring-shaped portions 217, 221 of the valve liner 250. Extend. In the area of the thickened section 225, the sealing liner 209 has an O-ring 247 movable therein.
Are disposed in the recess 227 and are guided in the recess 227 by the thickened portion 225 of the O-ring. The lateral holes 213 open in the region of the recess 227. The region 245 in which the valve element 250 extends movably supplies or exits the fluid in the closed position until a secure sealing of the second plug part to the outside is ensured and when the bladder is installed. It extends until the passages are safely separated. Valve liner
250 has a radial bore 229 extending in the third ring-shaped portion 223 parallel to the intake side.

Moving the valve liner 250 actuates control components located in the outlet portion 232 of the socket body. Movement is accomplished either by connecting bicarbonate bags or by mounting a locking cap (not shown) in which the two flow passages (for supply and outlet) are shorted. locking·
The cap is attached to allow complete sterilization of the second plug component 212.

By inserting the sealing liner 209 into the valve chamber, the movable valve element 250 is not integrally connected with the control components of the right half valve chamber. Here, actuation occurs by a stop 254 that is associated with the new magnetic liner 252. The stop is screwed onto the magnetic liner, while at the same time the elastic wall 228 is fixed in the center of the hole 214 in this screwed region. In the area of screw fastening to the magnetic liner, the fastener 254 has the same outer diameter as the liner. The second part of the fastener with the smaller diameter is the inlet part 23, as can be seen especially in FIG.
Extends outwardly from the portion 232 of the socket body into the 0.
The second portion of the stop 254 is made up of two arcuate portions extending as fork-shaped arms 239 through suitable recesses in the sealing liner 209. The fork arm 239 is guided into the recess of the sealing liner, but the fork arm extends beyond the diameter of the sealing liner 209. They are the face of the valve liner 250 facing the outlet side 205 and the stop surface 24.
Overlapping in 3 areas. Movement is transmitted from valve liner 250 to magnet 264 via stop surface 243.

In the following, the operating mode of the second plug component 210 in the closed position (without the bag) and with the bicarbonate bag attached or with the sealing cap will be described.

FIG. 6 shows a second plug configuration of the invention with the bicarbonate bag not attached and the locking cap not attached for sterilization of the second plug component. Element 210 is shown. In this position, the preloaded compression spring 260 pushes the magnetic liner 252 against the induction liner 231. In this position it experiences a maximum distance of travel into the inlet portion 230 of the socket body because the stop 254 is rigidly coupled to the magnetic liner 252. Therefore, the valve liner 250 is also maximally pushed toward the inlet side by the stop surface 243. O-ring 247 at this position
Is fixed between the thickened portion 225 of the valve liner 250 and the inlet side boundary of the recess 227 of the sealing liner 209. Thus, the passage of fluid between the sealing liner 209 and the valve liner 250 is effectively sealed to the outside.
At the same time, the second portion 221 of the valve liner 250 is installed in a sealing manner against the O-ring 222 that is inserted into the socket body 230. Therefore, the passage of fluid between the valve liner 250 and the socket body 230 is also impossible.

At this position, the second plug component 210 can be rinsed. The opposite end of the central hole 244c is the sealing stopper 21.
Fluid inlet channel 24 as it is sealed by 1.
As indicated by the direction of the arrow at the entrance of 4a, water or sterilizing solution flows through channel 244 and into central bore 244c, from which fluid flows through lateral bore 213 to the sealing liner and valve liner. It flows into the space between. Also through the radial holes 229, the fluid reaches the space between the valve liner and the socket body. This ensures that no play space is created and that the second plug component 210 is perfectly flushed. The water or germicidal solution is then removed through channel 242 to drain the fluid.

FIG. 7 shows the position of the movable element of the second plug component when the bicarbonate bag is mounted on the inlet side of the mating socket. The plug 220 is directly connected to the bicarbonate bag 200 without the intermediate tube.
The second plug component 210 and the plug 220 are fixedly connected to each other by a notch latch 237. The notch latch 237 is movably mounted by a pivot 249 on the mating socket and the notch 235 plugs the plug 220.
It is attached to the fixing protrusion 274 of. Bicarbonate bag 200
On the side away from, the plug 220 has three concentric ring walls. The first, outer ring wall 251 supports the locking projection 274 and surrounds a portion of the socket body 230. This outer ring wall 251 is the ring wall projecting farthest.

The ring wall 278 is installed rearwardly in relation to the outer ring wall that sealingly engages the ring seal 222 that is inserted into the socket body 230. Inner ring wall
276 is set further back in relation to the central ring wall 278. When the plug is in the insertion position, the plug component 210
The surface 253 of the inner ring wall that faces the bottom leans against the surface of the valve liner 250 that faces the inlet side. Therefore plug 220
The insertion of the face 253 against the valve liner 250 causes the latter to move against the pressure on the outlet side of the second plug component 210 of the spring 260. When the plug 220 is fixed on the second plug component 210 by the fixing protrusion 274, the ring sealing body 247 also changes into the recess 22.
It is moved by the movement of the valve liner 250, which is influenced by the inner ring wall surface 253, from the 7 inlet side boundary to the outlet side boundary opposite the recess 227. Therefore, the water flowing through the feed channel 244a to the central hole 244c flows through the lateral hole 213 from the second plug component 210,
An inner ring wall 276, which is sealed to the second plug component 210 by an O-ring 247 and which has an outlet 280 through which water leaving the lateral bore 213 can flow out to the inside of the bag 200. Enter the intermediate space surrounded by. The concentrated bicarbonate solution produced in bag 200 is absorbed via inlet line 286 with a filter (not shown) on its inlet end. Entrance line 28
6 opens towards a circular intermediate space between the inner ring wall 276 and the central ring wall 278. Mixing of the bicarbonate solution with the incoming water is not possible because the communication between the two spaces is blocked by the ring-shaped encapsulation 247. Incoming bicarbonate solution exits the space between the inner and central ring walls and enters the intermediate space between the valve liner 250 and the socket body 230. It is further passed through radial bore 229 to the space between sealing liner 209 and valve liner 250 and through channel 242 to the bicarbonate solution outlet line. It is convenient to place the channel 242 over the feed channel 244 to ensure that any CO ₂ generated is safely released with the bicarbonate solution. The exit of bicarbonate solution from the second plug component 210 is blocked by the central ring wall 278 sealingly engaged with the ring-shaped closure 222. The second embodiment of the invention described here allows a particularly perfect plug connection, which ensures a simple and reliable separation of the two flow passages from one another.

The movement of the magnet 264, ie the mounting of the bladder, reactivates the reed switch 266 with a suitable control device (not shown).

If a locking cap is placed on the inlet side of the socket body 230 for cleaning and sterilization of the second plug component 210, the locking cap will have bags 280 and 286 respectively. It is constructed the same as the Depressing Plug 220 with the difference that it does not open towards the 200, but is instead short circuited. As a result, water or sterilizing solution exits the lateral bore 213, directly into the intermediate space between the inner ring wall 276 and the central ring wall 278 via the short circuit line, and the socket body 230 and valve liner. Flows back through the space between 250 and the sealing liner 209 to the outlet channel 242. Therefore, all surfaces that come into contact with the bicarbonate solution are thoroughly and completely cleaned.

An additional embodiment of the plug connector of the present invention is shown in FIGS. This example not only allows the fluid concentrate to be prepared from a solid in the configuration of the present invention, but also the fluid concentrate can be diluted by itself and the same configuration, and if appropriate multiple concentrates. It should also be considered that a dialysis fluid concentrate can alternatively be prepared. For this purpose, a second plug component
210 has an additional channel 300 in the socket body for adding fluid concentrate. As shown in FIGS. 9 and 10, the channel leads from the outlet side of the socket body 232 to the cavity between the sealing liner 209 and the valve liner 250. The tube 304 is connected to the channel 300 via a port 302 that is inserted into the channel 300.
The flow port 302 is sealed to the socket body 306 by an O-ring 306. Tubing 304 is connected at its opposite end either to a container of concentrate, eg for a highly concentrated bicarbonate solution, or to a dialysis fluid circuit while rinsing the device. Second plug component shown in FIG.
At 210, the concentrate is delivered from a container with a highly concentrated bicarbonate solution into the cavity between the sealing liner 209 and the valve liner 250. If appropriate, dilution water likewise flows via channel 244 and then through lateral hole 213 into the cavity between sealing liner 209 and valve liner 250. A controller (not shown) ensures that a pre-defined mixing ratio is maintained. The diluent fluid then passes through channel 242 to the second
Exit the plug component 210 of the device toward the dialyzer.

When the first plug component 220 is installed, the concentrate channel 300 is positioned on the valve element 250, conveniently on the third circular portion 223.
It is sealed to the valve chamber 226 by rings 308 and 310. O-rings 308, 310 are located on the third circular portion 223 so that they are located on opposite sides of the concentrate channel 300 opening when the bag 200 is in place.

In this mode of use of the second plug component 210, cleaning or sterilization of the mating socket is accomplished by removing the other end of the tube 304 from the canister with a solution of highly concentrated fluid to the dialyzer. Are connected so that water or sterilizing solution flows through both the feed channel 244 and the concentrate channel 300 into the second plug component,
This is done by flushing it completely and then discharging it from channel 242.

According to a preferred embodiment of the present invention, corresponding indicia (not shown) are provided on the outside of the central ring wall 28 and on the second plug component to identify the separate concentrate bags. It can be applied on the inner surface. These indicia may mean, for example, a channel and spring arrangement or a mating ring. They ensure that only bags with a predetermined concentrate can be connected to the connectors and tubing connections provided for them.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of an exemplary embodiment of a second plug component, showing a closed position of the valve element.

2 is a side cross-sectional view of the plug connector of FIG. 1 with the plug of the double guide hole connected to the connector of the bag filled with bicarbonate powder.

FIG. 3 is a view similar to FIGS. 1 and 2 with the plug connected to the connector of the central concentrate supply.

FIG. 4 is a side cross-sectional view of another exemplary embodiment of the second plug component with illustrations of the inlet and outlet channels omitted.

5 is a schematic cross-sectional view of a bicarbonate bladder plug, similar to the plug shown in FIG.

FIG. 6 is a longitudinal cross-sectional view of an embodiment of the second plug component in the closed position.

FIG. 7 is a likewise longitudinal cross-sectional view of an embodiment of a second plug component with the first plug component having an attached bag.

8 is a longitudinal cross-sectional view of the moving element of the second plug component shown in FIGS. 6 and 7 (rotated 90 ° with respect to FIG. 7).

FIG. 9 is a longitudinal cross-sectional view of another embodiment of the second plug component.

FIG. 10 is a view of an example of the second plug component of FIG. 9 with the bag attached.

[Explanation of symbols]

10 ... socket, 12,212,230 ... socket body, 14,227 ... recess, 16,118 ... end, 18,42,44,80,96,242,244,304 ... channel, 20 ... connector, 22 ... ring, 26,226 ... chamber, 28,251,276,278 ... wall, 30,32 ... Socket part, 34
… Joints, 36… Bolts, 46,48… Sealing configurations, 50… Valve elements, 52, 54, 56… Valve areas, 60… Elastic elements, 64, 66
… Switch, 68… Sensor configuration, 70,211,254… Stoppers, 7
2,220 ... Plug, 74 ... Pawl stopping means, 76,78,112 ... Tube, 79 ... Handle part, 80,280 ... Inlet, 82,84,90,92,
116… Openings, 86,286… Outlets, 100,200… Bags, 102… Filters, 110,212… Plug components, 122… Check valves, 20
5,253… face, 207,222,306,308,310… O ring, 209,25
0,252… Liner, 213,214,229… Hole, 216… Side, 217,
221 ... Ring type part, 219 ... Stop surface, 225 ... Thick part,
230… Entrance, 232… Exit, 235… Notch, 237
... Latch, 239 ... Arm, 222, 247 ... Sealing body, 249 ... Pivot, 260 ... Spring, 264 ... Magnet, 274 ... Protrusion, 286
… Entrance line, 302… Mouth.

Front Page Continuation (72) Inventor Balter Pieper, Federal Republic of Germany, 6364 Florstadt 1, Kirchbeek-Allee 4 (72) Inventor Daniel Weber, France F-47220 Astfort, Lacrox (56) ) References JP-A-4-354953 (JP, A) JP-A-3-63063 (JP, A) JP-A-61-288866 (JP, A) US Pat. No. 5540265 (US, A) (58) Research field (Int.Cl. ⁷ , DB name) A61M 1/00-1/36

Claims (8)

(57) [Claims] 1. A bag containing a fluid or solid concentrate for making a dialysis fluid and having an opening, the opening surrounding the opening so as to be hermetically sealed. Push-in parts (20, 2) that are connected to enable distribution
20) is a bag, wherein the push-in section (20, 220) has a connecting means for connecting to a counterpart push-in section (10, 210) directly arranged on the dialysis machine, and the push-in section is A double guide hole, which is connected to one guide hole and is provided with an inlet portion (8) for flowing fluid from the dialysis machine.
1) a first flow passage (96) from the dialysis machine to the inside of the bag and an inside of the bag with an outlet (90) connected to 2) and the other guide hole for flowing the diluted concentrate back to the dialysis machine. A second flow path (98) returning from the dialysis machine to the dialysis machine; 2. The guide hole of the push-in portion (20, 220), which is in communication with the inside of the bag and has the outlet (90), is connected to a tube protruding into the inside of the bag. The bag according to claim 1. 3. Bag according to claim 2, characterized in that the tube projecting inside the bag has a filter (102) at its free end. 4. The first flow passage (96) and the second flow passage (98) are parallel and partially concentric, according to claim 2 or 3. bag. 5. A pusher (20, 220), which is in fluid communication with the interior of the bag, has a coding for identifying the contents of a particular bag. Bag of 6. A push-in portion (20, 220) which can be communicated with the inside of the bag is a mating push-in portion (10, 21).
0) holding means (7) for establishing a liquid-sealed connection.
4, 222).
The bag according to any one of 1. 7. A mating push-in body (232) of the mating push-in portion (210) has a substantially cylinder-shaped recess opening to the outer periphery, and the inside of the mating push-in portion is inside the valve chamber (226). Valve element (25
0) is movably arranged and said member is preloaded towards the closed position by means of elastic members (260, 252, 254).
A method of forming a flow passage between a bag (100) containing a fluid or a solid concentrate for making a dialysis fluid and a dialysis machine by arranging 0). 8. A first opening (90) at the forward end (16) of the pusher (20, 220) in the longitudinal axial direction of the pusher (20, 220) and an inlet flow passage ( 42) and a first flow passage (86) capable of connecting a second opening (92) to the first flow passage (98) of the tube leading to the interior of the bag at the rear end of the pusher. ) And is connectable to the outflow passage (44) of the dialysis machine at the front end of the pusher and has a first end at the front end of the pusher.
Has a third opening (82) penetrating the outer circumference of the push-in portion laterally and radially to the opening (90) of Division (8
4) the second flow passage (9) of the tube connecting the inside of the bag.
A bag (100) containing a fluid or a solid concentrate for making a dialysis fluid by arranging the push-in part (20, 220) having a second flow passage (80) connectable to 6). To form a flow passage between the dialysis machine and the dialysis machine.