Concentrate container adapter and connector housing for connection to a blood treatment device

Description

Technical area

[0001] The present invention relates to a concentrate container adapter for a blood treatment device, in particular a dialysis machine, and a connector housing for connection to a blood treatment device, preferably a dialysis machine. background

[0002] The term "blood treatment device" includes, among other things, a dialysis machine. Dialysis machines are often used in dialysis centers to treat chronic kidney disease.

[0003] During dialysis, the patient's blood continuously flows through the blood chamber of the dialyzer, while dialysis fluid continuously flows through the dialysis fluid chamber. Dialysis fluid can be produced using pre-prepared dialysis fluid concentrates, which are diluted with water in the dialysis machines. In dialysis centers, dialysis fluid concentrates are provided either as a pre-prepared product in canisters, bags, or cartridges, or via a ring line system from a central tank.

[0004] Centrally supplied dialysis fluid concentrates are easy to handle for the user, but they have the disadvantage that the dialysis fluid cannot be individually tailored to the patient's needs. Decentralized dialysis fluid concentrates allow for individual adjustment of the dialysis fluid to the patient, but they must be brought to the dialysis machine for each individual dialysis treatment.

[0005] In dialysis, bags or cartridges filled with a powdered dialysis fluid concentrate are used to produce a liquid dialysis concentrate. The concentrate bags or cartridges contain a quantity of powdered dialysis fluid concentrate sufficient for a single dialysis treatment. The bags or cartridges are filled with bicarbonate. Commercially available bicarbonate bags contain 650 to 950 g of sodium bicarbonate. A liquid bicarbonate concentrate is first produced from the powdered bicarbonate concentrate. An additional acid concentrate is required to produce the dialysis fluid, which is provided in a canister or via a central supply. The bicarbonate concentrate and acid concentrate are then mixed with water to produce the finished dialysis fluid.

[0006] The dialysis machine therefore also has a water connection through which pure water is supplied. The desired mixture of pure water and the corresponding concentrate is then produced in the dialysis machine.

[0007] Providing the liquid concentrate via concentrate containers presents several challenges, as the concentrate containers are heavy and therefore difficult for nursing staff to handle. In addition, to provide the concentrate, suction rods from the dialysis machine must be inserted into the concentrate containers, which are then returned to the dialysis machine for cleaning after each treatment. This handling of the concentrate containers is therefore time-consuming and can lead to longer breaks between individual treatments.

[0008] Alternatively, the concentrate can also be supplied via a central supply and a corresponding central supply connection on the dialysis machine. However, this requires appropriate equipment at the clinic and can have disadvantages regarding the flexibility of the available concentrate and the maintenance effort required for the lines used for this purpose.

[0009] EP 1 344 550 A1 discloses a connector for connecting a concentrate bag filled with dry concentrate to a dialysis machine. Even with this type of concentrate supply, certain steps are necessary between treatments. For example, a contamination protection device attached to the concentrate bag must be manually removed, the concentrate bag inserted into the corresponding receptacle on the dialysis machine, i.e., connected, and finally connected to the dialysate circuit.

[0010] After treatment, the concentrate bag must be disconnected from the dialysate circuit and removed. Only after this removal can a cleaning program be started on the dialysis machine. Nursing staff can also only perform surface cleaning of the dialysis machine after the concentrate bag has been removed.

[0011] In addition to high safety requirements, the time aspect plays a special role in dialysis treatment, especially in dialysis centers.

[0012] Since sufficient time must be available for the actual treatment, the time between treatments, in particular, is subject to constant optimization. As described above, in addition to patient preparation, time is also required between treatments for preparing the dialysis machine for the next treatment, including steps such as preparing the required concentrate containers or disinfecting the dialysis machine.

[0013] The present application is therefore based on the object of providing a cleaning device for a blood treatment device that allows for improved handling and / or time savings for the user. In particular, the time required to prepare the dialysis machine and the associated handling steps should be reduced while simultaneously ensuring patient safety. Summary of the invention

[0014] The object underlying the invention is achieved by a concentrate container adapter for a blood treatment device according to claim 1 and a connector housing for connection to a blood treatment device according to claim 6. Advantageous further developments and embodiments are the subject of the dependent claims.

[0015] The concentrate container adapter according to the invention for use in a blood treatment device, in particular a dialysis machine, comprises a fastening body to which a concentrate bag can be fastened. The fastening body can have a filling opening and two connection openings arranged laterally to the filling opening. Furthermore, the concentrate container adapter can have a housing receiving area on the fastening body, which is configured such that the concentrate container adapter can be attached to a connector housing by means of the housing receiving area. The housing receiving area can be arranged on the outside of the material forming the openings.

[0016] The openings can be the connecting openings and / or the filling opening.

[0017] The filling opening and the connecting openings can be through-openings and / or can have a circular cross-section. The filling opening can have a larger diameter than the connecting openings and can be cylindrical. In particular, the filling opening can have a constant inner diameter. The connecting openings can also be partially or completely cylindrical; their radius can also change along their length. The center line of the preferably cylindrical filling opening can define a first straight line. The centers of the connecting openings, which are preferably circular in cross-section, can form two points on a second straight line and define this second straight line.

[0018] The center line of the preferably cylindrical connecting openings can define a third and fourth straight line. The third and fourth straight lines can be parallel to one another and / or parallel to the first straight line. The first and / or third and / or fourth straight lines can further be substantially perpendicular to the second straight line. The connecting openings can have openings opposite one another on the third or fourth straight line. The cross-sectional areas of the opposite openings can differ from one another, wherein the opening of the connecting openings which points in the direction of a concentrate bag attached to the concentrate container adapter can have a smaller cross-sectional area than the opposite opening. The opposite openings of the through-openings can, however, also be spaced apart perpendicular to the third or fourth straight line.In other words, a fluid flowing through the through-opening can flow in or out to two opposite sides and is deflected between the two openings within the respective through-opening.

[0019] The housing receiving area is arranged on the outside of the material forming the openings. In other words, the housing receiving area can be spaced apart from the filling opening and the connecting openings. In this case, "spaced apart" means that the housing receiving area is not formed in the filling opening and / or the connecting openings. In particular, the housing receiving area cannot be located between the filling opening and the connecting openings. In particular, each area of ​​the housing receiving area can be located further away from the center of the filling opening and / or at least one of the connecting openings than the length of the connecting line between the centers of the filling opening and at least one of the connecting openings.Furthermore, each point of the housing receiving area can be arranged such that the distance between the center of the filling opening and at least the center of one of the connecting openings is smaller than the distance between the housing receiving area and the center of the filling opening combined with the distance between the housing receiving area and the center of a connecting opening. The housing receiving area can, for example, be formed in a partial area around the filling opening. The first, third, and fourth straight lines can also lie on one plane. Furthermore, the first straight line can intersect the second straight line essentially perpendicularly.

[0020] According to a further development of the concentrate container adapter, the receiving area can follow the opening contour of the filling opening. For example, the receiving area can extend in an arc around the filling opening and have a first force-absorbing surface formed at an angle of 120 to 60 degrees, preferably 110 to 70 degrees, more preferably 90 degrees, to the first straight line, as well as an edge surface formed such that the concentrate container adapter is fixed relative to the connector housing.

[0021] According to a further development of the concentrate container adapter, the housing receiving area can extend in a frame-like manner over two longitudinal struts to two opposite sides of the fastening body, preferably parallel to the first straight line, away from the main body and can have at least one first transverse strut which connects the longitudinal struts.

[0022] This cross brace can be used to absorb force when the concentrate container is attached to the dialysis machine. In a further development, at least two cross braces can connect the longitudinal braces. The second cross brace can be used to hold or move the concentrate container; in particular, the first cross brace can be pushed into a holder on the dialysis machine by manually or automatically moving the second cross brace. The first and / or second cross brace can be curved. In particular, the second cross brace can extend in a curved shape between the intersection points of the first cross brace and the two longitudinal braces.The second cross strut can be designed to be foldable or collapsible, so that the second cross strut is unfolded while being carried by a caregiver and can be folded in when the concentrate container adapter is attached to the connector housing, so that the second cross strut approaches the connector housing.

[0023] According to a further development of the concentrate container adapter, the first cross strut can have a projection and / or a notch which is designed such that it limits a degree of freedom of movement of the concentrate container adapter when it is attached to a connector housing.

[0024] In particular, the projection and / or the notch can prevent the concentrate container adapter from moving on the connector housing parallel to the direction of the cross member.

[0025] According to a further development of the concentrate container adapter, it can have a concentrate container locking element on the fastening body, which is designed such that it limits at least one degree of freedom of movement of the concentrate container adapter when it is attached to a connector housing.

[0026] In particular, the concentrate container locking element can prevent the concentrate container adapter from tilting around the first cross strut.

[0027] According to the invention, the connector housing for connection to a blood treatment device has at least one container receiving area which is designed such that it can receive a concentrate container adapter, preferably according to one of the preceding aspects, on a lower area of ​​the connector housing, and connector connecting elements on an underside of the connector housing which can be moved out of the connector housing and are designed such that a fluidic connection with the concentrate container adapter can be established.

[0028] The lower area of ​​the connector housing refers to an area of ​​the connector housing that is not visible from a top view perpendicular to the top of the connector housing. In other words, the lower area of ​​the connector housing refers to both a bottom side that extends parallel to the top of the connector housing and a front surface that extends from the bottom of the connector housing further away from the top of the connector housing. The connection of the concentrate bag, which is accommodated in the concentrate container adapter, takes place from above, i.e., in a direction that extends away from the top of the connector housing.

[0029] According to a further development of the connector housing, the container receiving area can be a groove-shaped recess on the top side of the connector housing, which extends along a first straight line.

[0030] The grooved recess can have a semicircular cross-section. The grooved recess can also have a rectangular cross-section, with chamfered edges for easy insertion of the concentrate container adapter.

[0031] According to a further development of the connector housing, the groove-shaped recess can be assigned a restricting element which extends in a second direction different from the first.

[0032] The restricting element can be formed in the groove-shaped recess. The restricting element can, for example, be a rectangular or semicircular spherical protrusion in the groove-shaped recess. The restricting element extends in a direction perpendicular to the top side of the connector housing, so that a force acting parallel to the top side of the connector housing can be absorbed. In other words, the concentrate container adapter can no longer be displaced once inserted into the groove-shaped recess.

[0033] According to a further development of the connector housing, a connector housing locking element can be formed on an underside of the connector housing.

[0034] The connector housing locking element can be arranged in particular on an end face which extends downwards from the underside of the connector housing, so that when the concentrate container adapter is inserted, the locking element can prevent it from tilting in the groove-shaped recess.

[0035] According to a further development, the connector housing can further comprise a door element with a first holding device on one side of the door element, a second holding device for the movable fastening of the door element to the connector housing, wherein the container receiving area for receiving the concentrate container adapter is formed on the door element, wherein the door element can be pivoted about the second holding device such that in a first position the second side opposite the first side of the door element can be moved under the connector housing, and in a second position the door element extends away from the connector housing.

[0036] According to a further development, a wall material of the container receiving area can be flat. Alternatively, the container receiving area can also have a contour. This surface contour can serve as a support for the concentrate container adapter. The housing receiving area of ​​the concentrate container adapter can have a corresponding contour. For example, the contour can be wave-shaped or have two surfaces that meet at an angle of less than 180°. Such a contour can serve to more precisely define the positioning of the adapter when it is hung in place.

[0037] The door element can be arched, and a center point of the arch shape can be located in the first position of the door element under the connector housing.

[0038] According to a further development of the connector housing, a first engagement element can be formed on the second side of the door element. A second engagement element can also be formed on the connector housing. Thus, in the first position of the door element, the first engagement element can engage with the second engagement element. This can provide haptic feedback to the nursing staff. Furthermore, a slight swinging back of the door can be prevented. Likewise, further or alternative engagement elements can be provided, which interlock when the door element reaches the second position.

[0039] According to a further development, the connector housing can have a detection unit for detecting a concentrate container adapter.

[0040] One part of the detection unit can be formed on the connector housing, and a second part of the detection unit can be formed on the concentrate container adapter or the concentrate bag, which interacts with the first part of the detection unit. The detection unit can be connected to a control unit, so that the concentrate container adapter or concentrate bag is only connected once the presence of a concentrate container adapter or concentrate bag has been positively detected by the detection unit. In other words, both the presence and the correct position of the concentrate bag, as well as the presence of the correct concentrate bag, can be detected.

[0041] According to a further development of the connector housing, the detection unit can be a light transmitting unit and a light receiving unit for detecting the presence of a reflection geometry at a specific position.

[0042] Using Snell's law of refraction, it is possible to precisely determine when the light-receiving unit should detect a reflection. If the concentrate container adapter is inserted in a specific position and has an area, i.e., a reflection geometry, toward which the light-emitting unit is directed, the change in direction can be calculated based on the material of the area toward which the light-emitting unit is directed. In other words, the reflection geometry can only send a light beam back to the light-receiving unit if the concentrate container adapter with the reflection geometry is in the correct position relative to the connector housing.

[0043] According to a further development of the connector housing, the detection unit can be a color sensor and a light source, which are arranged on the underside of the connector housing.

[0044] In this refinement, the concentrate container adapter can be color-coded. The color sensors can operate on an interference basis and, for example, be photodiodes with integrated color filters. Here, too, a control unit is provided for evaluation, so that the concentrate container adapter is only connected upon a positive detection.

[0045] According to a further development of the connector housing, the detection unit can be a radar sensor for detecting the movement and position of the concentrate container adapter.

[0046] According to a further development of the connector housing, the detection unit can be at least a micro switch.

[0047] In this case, the connector housing has at least one, but preferably several, micro-switches at a position at which the concentrate bag or the concentrate container adapter is in a correct position.

[0048] According to a further development, a receiving device for receiving a concentrate container adapter, preferably according to one of the preceding aspects, has a receiving area with fastening elements for fastening the concentrate container adapter, a mounting area with mounting elements for mounting the receiving area on a connector housing, preferably according to one of the preceding aspects, a travel area by means of which the distance between the receiving area and the mounting area can be changed such that the receiving area can be moved from an area remote from the connector housing to an area close to the connector housing.

[0049] According to a further development of the receiving device, the travel area can be designed as a telescopic mechanism or as a folding mechanism and / or the travel area can be moved on a straight line which forms an angle of 20 to 50 degrees, preferably 30 to 40 degrees, between a surface parallel to a floor surface in a state in which the receiving device is connected to the connector housing.

[0050] According to a further development, a receiving device for receiving a concentrate container adapter, preferably according to one of the preceding aspects, has a mounting area with mounting elements for mounting the receiving area on a connector housing, preferably according to one of the preceding aspects, a receiving area into which the concentrate container adapter can be inserted, and a sliding area which is configured and inclined to a base surface in a state in which the receiving area is mounted on the connector housing, such that a concentrate container can be displaced in a line with the connector housing, wherein the receiving area is designed to be pivotable relative to the sliding area such that when the receiving area is pivoted, a concentrate container inserted into the receiving area can be displaced from the receiving area via the sliding area to the connector housing.

[0051] According to a further development of the receiving area, the sliding area can be formed from two parallel rail elements and the receiving area can be formed in an arc shape between end sections of the rail elements.

[0052] According to the invention, a connection system can comprise a connector housing according to one of the preceding aspects, as well as a concentrate container adapter according to one of the preceding aspects.

[0053] According to a further development of the connection system, it can have a receiving device according to one of claims 18 to 20.

[0054] According to the invention, a concentrate container system can comprise a concentrate container adapter according to one of the preceding aspects, a concentrate container that can be filled with a dry concentrate, and / or a concentrate supply line that can supply a concentrate solution from the concentrate container to a blood treatment device, in particular a dialysis machine.

[0055] The concentrate container adapter and the connector housing make it possible to connect the concentrate container adapter to a blood treatment device, in particular a dialysis machine, easily, i.e., with just a few handling steps. In particular, the concentrate container adapter can be attached to the blood treatment device while the connection nozzles are still being cleaned. The design of the concentrate container adapter also makes it possible to prevent the concentrate container adapter from slipping relative to the blood treatment device, in particular the dialysis machine. The concentrate container adapter and connector housing according to the invention ensure patient safety.

[0056] The above-described features and functions of the present invention, as well as other aspects and features, are further described below with reference to a detailed description of preferred embodiments with reference to the accompanying figures. In the figures, identical features / elements and features / elements with the same function are identified by the same reference numerals. Brief description of the drawings

[0057] This shows: Fig. 1 shows a concentrate container adapter according to a first embodiment; Fig. 2 shows a concentrate container adapter according to a second embodiment; Fig. 3 shows a concentrate container adapter according to a third embodiment; Fig. 4 shows a connector housing according to a first embodiment; Fig. 5 shows a connector housing according to a second embodiment; Fig. 6 shows a connector housing according to a third embodiment; Fig. 7 shows a schematic diagram of a detection unit according to a first embodiment; Fig. 8 shows a schematic diagram of a detection unit according to a second embodiment; Fig. 9 shows a schematic diagram of a detection unit according to a third embodiment; Fig. 10 shows a schematic diagram of a detection unit according to a fourth embodiment; Fig. 11 shows a schematic diagram of a receiving device according to a first embodiment; Fig. 12 shows a schematic diagram of a receiving device according to a second embodiment. Detailed description of an embodiment

[0058] Referring to Fig. 1 A first embodiment will be explained below. Fig. 1 a concentrate container adapter according to a first embodiment. The concentrate container adapter has a fastening body 1. A concentrate container, in particular a concentrate bag that can be filled with dry concentrate, can be attached to the fastening body 1. The concentrate bag can be made of a flexible material such as PVC, PVP, or polyethylene. The concentrate bag, advantageously still without dry concentrate, can be welded to the concentrate container adapter.

[0059] To prepare for dialysis treatment, the concentrate container adapter with the concentrate container attached to it, which is now filled with dry concentrate, is attached to a dialysis machine. The dry concentrate is bicarbonate concentrate in bicarbonate dialysis. The fastening body 1 has a filling opening 11. The dry concentrate can be filled into the concentrate container via this filling opening 11. The filling opening 11 spans a plane. The first straight line extends perpendicular to this plane. The filling opening 11 can be arranged as shown in the Fig. 1 shown embodiment may be an extending tubular or annular section.

[0060] Furthermore, the fastening body 1 has a first connecting opening 12a and a second connecting opening 12b. These connecting openings 12a and 12b span a second straight line. A hose which projects into the concentrate bag can be attached to each of the connecting openings 12a and 12b. A filter can also be attached to at least one hose, in particular the suction end. After filling with a dry concentrate, the filling opening 11 is preferably closed with a protective film, for example, welded or glued. Likewise, the first connecting opening 12a and the second connecting opening 12b are closed before treatment with a protective device, for example, a protective film. Before the start of treatment, more precisely, before pure water from the dialysis machine can be filled into the concentrate bag via the concentrate container adapter, the protective device is removed from the connecting openings 12a, 12b.

[0061] During treatment, pure water from the dialysis machine is introduced into the concentrate bag via the first connection opening 12a. The dry concentrate is mixed with the pure water in the concentrate bag. The concentrate solution, now in liquid form, is then discharged via the second connection opening 12b. For this purpose, a hose can be arranged in the concentrate bag, connected to the second connection opening 12b, extending from the second connection opening 12b to near the end of the concentrate bag opposite the second connection opening 12b. The concentrate container adapter, to which a concentrate bag is attached, is attached to the dialysis machine before treatment.

[0062] For handling, the concentrate container adapter can be used as shown in Fig. 1shown, have a carrying handle, which in this embodiment is preferably designed to be foldable. For this purpose, the concentrate container adapter has a housing receiving area 13 on the fastening body 1. The concentrate container adapter is attached to the dialysis machine via this housing receiving area 13 in such a way that the concentrate container adapter can no longer be moved relative to the dialysis machine. In other words, this housing receiving area 13 enables force transmission in preferably all degrees of freedom. In particular, the weight of the concentrate container adapter with concentrate bag is also transferred to the dialysis machine via this housing receiving area 13, more precisely to a connector housing 10 provided for receiving the concentrate container adapter.

[0063] The housing receiving area 13 is formed around the filling opening 11. The housing receiving area 13 can, as shown in the Fig. 1In the embodiment shown, the adapter can be formed in an arc around the filling opening 11. A first force-absorbing surface 131 extends away from the first filling opening 11. Via this first force-absorbing surface 131, in particular, the weight of the concentrate bag can be transferred to the connector housing 10. In the embodiment shown here, the first force-absorbing surface 131 forms an angle of substantially 90 degrees to the first straight line. To prevent the concentrate container adapter from shifting relative to the connector housing 10, the receiving area has an edge surface 132.

[0064] The edge surface 132 extends downward from the first force-absorbing surface 131 at a right angle to a position attached to the connector housing 10, i.e., opposite to the direction of gravity. Since the receiving area is arcuate, it can also absorb forces acting perpendicular to the arcuate shape. Fig. 2 shows a further embodiment of the concentrate container adapter. In this embodiment, the housing receiving area 13 extends frame-like around the filling opening 11. In particular, two longitudinal struts 14a, 14b extend away from two sides of the fastening body 1. The longitudinal struts 14a, 14b extend in particular from two opposite sides of the fastening body 1, more precisely to two points lying on the second straight line. The second straight line intersects a center point of the filling opening 11.

[0065] This prevents the formation of large tilting moments. In particular, when the concentrate bag is connected, i.e., when the dialysis-side connections are connected to the first and second connection openings 12a, 12b, a force acts on the concentrate container adapter. Two cross struts 15a, 15b are located at an end region of the longitudinal struts 14a, 14b remote from the main body. These cross struts 15a, 15b are formed parallel to the second straight line. The cross struts 15a, 15b are spaced apart from one another such that the concentrate container adapter, comprising the first, upper cross strut 15a, can be easily carried, for example, at a distance of 1.5 to 10 cm, preferably 2 to 8 cm. The force of the weight is transmitted to a connector housing 10 via the lower cross strut 15b, i.e., the cross strut located in the direction of the filling opening 11. The connector housing 10, as shown in Fig. 5As shown, the connector housing 10 has a groove-shaped receptacle as the container receiving area 27b. The connector housing 10 can taper towards the front. In other words, the circumference of the connector housing at a front side, over which the concentrate container adapter must initially be pushed, can be smaller than at a point where the concentrate container adapter can finally be inserted into the groove.

[0066] The lower cross strut 15b has, as shown in Fig. 2b, a notch 17. The concentrate container adapter can be hooked into the correct position on the connector housing 10 via the notch 17. In addition, the notch 17 in the lower cross strut 15b prevents the concentrate container adapter from slipping relative to the connector housing 10. The concentrate container adapter further has a concentrate container locking element 23a. For this purpose, a semicircular, extending contour is formed on a side surface of the fastening body 1. The connector housing 10, as shown in Fig. 5 shown, has a corresponding counter-contour that can engage, or more precisely, lock, with the concentrate container locking element 23a. This allows tilting moments of the concentrate container adapter to be absorbed.

[0067] Fig. 3shows a further embodiment of a concentrate container adapter. Here, the housing receiving area 13 is formed on two sides of the filling opening 11. More precisely, two receiving areas are formed with a semicircular cross-section, which can be pushed onto a corresponding counter-contour, such as cylindrical and / or conical pins. The receiving areas thus protrude laterally from the concentrate container adapter on a straight line, parallel to the second straight line. A corresponding embodiment of the connector housing 10 is shown in Fig. 6 The peg-like projections serve as the container receiving area 27c in this embodiment. The connector housing 10 can have an additional, third peg-like projection on its front side. The concentrate container adapter can be hooked onto this projection. For this purpose, the concentrate container adapter can have a U-shaped recess on its carrying handle.

[0068] Fig. 4 shows perspective views of a connector housing 10 according to a first embodiment. The connector housing 10 has a container receiving area 27a for receiving a concentrate bag, more precisely a concentrate container adapter. In order to be able to supply pure water to the concentrate bag and to supply the concentrate solution from the concentrate bag to the dialysis machine, the connector housing 10 has connecting nozzles, which are preferably arranged in a movable manner within the connector housing 10 and can thus be inserted from above into the attached concentrate container adapter. These connecting nozzles can thus establish a fluidic connection between the concentrate bag and the dialysis machine.

[0069] At the Fig. 4In the embodiment shown, the connector housing 10 has a door element 24. The door element 24 can be pivoted relative to the connector housing 10. For this purpose, the door element 24 has a cylinder with a bore. The connector housing 10 has, for example, a second cylinder corresponding to the inner diameter of the bore. The door can be placed onto this second cylinder and then screwed. Alternatively, a hinge joint can connect the door element 24 to the connector housing 10. The container receiving area 27a is formed on the door element 24, wherein a concentrate container adapter of the first embodiment can be suspended over the edge surface 132 of the door element 24. The container receiving area 27a, or the door element, can have insertion bevels to facilitate the placement of the concentrate container adapter. Additionally or alternatively, the concentrate container adapter can have insertion bevels.To attach the concentrate container adapter, the door element 24 is moved into an open position.

[0070] In order to accommodate the concentrate bag, the door element 24 is curved. In the closed position, both end regions of the door element 24 are arranged below the connector housing 10. In the closed position, a contact surface of both end regions of the door element 24 with the connector housing 10 can exist. For this purpose, the end region of the door element 24, which in the open position is not located below the connector housing 10, can have a first engagement element 24a. The first engagement element 24a can, as shown in the Fig. 4In the embodiment shown, this can be a notch 17 on the top side of the door element 24. The connector housing 10 has a corresponding counter-contour, for example in the form of a ball element movably mounted by a spring. If the door element 24 is located below the connector housing 10, the ball element is pressed into the notch 17.

[0071] To detect whether a concentrate bag or a concentrate container adapter is located on the connector housing 10, the connector housing 10 can have a detection unit. For this purpose, as shown in a schematic diagram in Fig. 7As shown, a light source acts as a transmitter, and a light receiver is formed on the connector housing 10. The transmitter and receiver can be formed on an underside of the connector housing 10, beneath which the concentrate container adapter can be accommodated. The concentrate container adapter has a reflection geometry on one surface. If the light source emits a light beam in a specific direction, the light pulse is received at the corresponding intensity at the light receiver only if the concentrate container adapter is arranged at a predetermined position relative to the connector housing 10.

[0072] The reflection geometry on the concentrate bag adapter can vary, for example, depending on the dry concentrate contained in the concentrate bag. This not only ensures that the concentrate bag adapter is in the correct position, but also that the dry concentrate intended for a specific treatment has been provided. If it is determined that the wrong concentrate container adapter is present or that it is in the wrong position—in other words, if the reflection geometry is not detected by the receiver unit—the start of treatment can be prevented. For example, a message, e.g., in the form of an alarm, can be presented to the nursing staff.

[0073] In a further embodiment, the connector housing 10 can comprise a color sensor as a receiver and a light source as a transmitter. Accordingly, as shown in Fig. 8 As shown in the schematic diagram, the concentrate bags or the concentrate container adapters have a color marking. Depending on the color coding, it is possible to detect which type of dry concentrate, which type of concentrate bag (for example, differentiated by fill quantity), as well as correct positioning. In this embodiment, too, the light source and color sensor can be formed on an underside of the connector housing 10. As a further embodiment, a radar sensor can be arranged on the connector housing 10 and detect the position and presence of the concentrate bag adapter or concentrate bag.

[0074] Fig. 9shows a schematic diagram of another embodiment of the detection unit. In this embodiment, the connector housing 10 also has a transmitting unit and a receiving unit. The transmitting unit here is a light source. The receiving unit is arranged on the connector housing 10 in such a way that it only receives a light pulse when the correct concentrate bag or concentrate container adapter is in the correct position. This is ensured by the characteristic refractive index of the material used. The refractive index of the concentrate bag or concentrate container adapter is used as the basis for the expected reflection angle. If no previously defined light pulse is received at a correspondingly positioned receiving unit, the aforementioned conditions of the correct concentrate bag and / or its position are not met. The receiving unit can, as in Fig. 9shown, be formed on a side of the connector housing 10 opposite the underside of the connector housing 10 at an angle.

[0075] Fig. 10 shows a further embodiment of the detection unit. Here, the connector housing 10 has at least one, but preferably several, microswitches at a position where the concentrate bag or the concentrate container adapter is in the correct position. As shown in Fig. 10 As shown, the concentrate container adapter can have two projections arranged on the inside of the longitudinal struts 14a, 14b. The microswitch on the side surfaces of the connector housing 10 can be arranged directly behind an elastomer layer, so that when pressed, the elastomer layer is triggered by the projections of the microswitch. The coding of different concentrate bags can be achieved via the position of the microswitches on the housing.

[0076] Fig. 11shows a schematic diagram of a receiving device 3 according to a first embodiment. A concentrate container adapter can be received in the receiving device 3, and the receiving device itself can be attached to the connector housing 10 via a mounting area. Furthermore, the receiving device 3 has a sliding area 32 and a receiving area 31. Thus, the receiving area 31, in which a concentrate container adapter is received, can be fed to the connector housing 10 via the sliding area 32. Nursing staff can thus insert the concentrate container adapter with concentrate bag in an easily accessible area. The concentrate container adapter itself is then fed via the sliding area 32.

[0077] As in Fig. 11As shown, the sliding area 32 is designed here as a rod slide, for example as a rigid element. The sliding area 32 can be formed from two parallel rail elements and the receiving area 31 can be curved between end sections of the rail elements. The concentrate container adapter can be moved or slid under the connection nozzles of the dialysis machine via the rigid element. The receiving area 31, as a rotating element, is initially aligned horizontally so that the concentrate container adapter remains in it. After cleaning of the dialysate circuit is complete, the rotating element, the receiving area 31, can tilt and thus move the concentrate container adapter over the rigid element, the sliding area 32, under the connector housing 10.This allows the nursing staff to place the concentrate bag into the receiving device 3 at any time, regardless of the cleaning progress.

[0078] Fig. 12shows a schematic diagram of a receiving device 3a according to a second embodiment. The receiving device 3a has a receiving area 31a with a fastening element. The concentrate container adapter can be fastened in this receiving area 31a. The receiving device also has a travel area 32a. Via this travel area 32a, the distance between the receiving area 31a and the mounting area can be changed, so that the receiving area 31a with the received concentrate container adapter can be fed to the connector housing 10 for connection. At the beginning, the nursing staff places the concentrate container adapter in the receiving area 31a. This can be done independently of the progress of the cleaning. After cleaning is complete, the travel area 32a moves the concentrate container adapter to the connector housing 10, for connection under the connection nozzles.The travel area 32a can be designed as a telescopic mechanism or a folding mechanism.

Claims

1. Concentrate container adapter for a blood treatment device, in particular a dialysis machine, comprising a fastening body (1) to which a concentrate bag can be fastened, the fastening body (1) having a filling opening (11) and two connecting openings (12a, 12b) arranged laterally to the filling opening (1), a housing receiving region (13) on the fastening body (1), the fastening body (1) being designed in such a way that the concentrate container adapter can be attached to a connector housing (10) by means of the housing receiving region (13), and the housing receiving region (13) being arranged on the outside of the material forming the filling opening (11) and / or connecting openings (12a, 12b), characterized in that the housing receiving region (13) is spaced apart from the filling opening (11) and the connecting openings (12a, 12b).

2. Concentrate container adapter according to Claim 1, wherein the housing receiving region (13) follows an opening contour of the filling opening (11).

3. Concentrate container adapter according to Claim 1, wherein the housing receiving region (13) extends away from the fastening body (1) in the manner of a frame via two longitudinal struts (14a, 14b) to two opposite sides of said fastening body and has at least one transverse strut (15b), which connects the longitudinal struts (14a, 14b) .

4. Concentrate container adapter according to Claim 3, wherein the at least one transverse strut (15b) has a projection and / or a notch (17), which is designed in such a way that it limits a degree of freedom of movement of the concentrate container adapter when the latter is attached to a connector housing (10).

5. Concentrate container adapter according to any one of the preceding claims, further comprising a concentrate container latching element (23a) on the fastening body (1), which latching element is designed in such a way that it limits at least one degree of freedom of movement of the concentrate container adapter when the latter is attached to a connector housing (10).

6. Connector housing (10) for attaching to a blood treatment device, in particular a dialysis machine, comprising at least one container receiving region (27a, 27b, 27c), which is designed in such a way that it can receive a concentrate container adapter according to any one of Claims 1 to 5 on a lower region of the connector housing (10), and connector connecting elements on a lower side of the connector housing (10), which connector connecting elements are movable out of the connector housing (10), and are designed in such a way that a fluidic connection with the concentrate container adapter can be established.

7. Connector housing (10) according to Claim 6, wherein the container receiving region (27b) is a groove-shaped recess on the upper side of the connector housing (10).

8. Connector housing (10) according to Claim 7, wherein the groove-shaped recess is assigned a limiting element which extends away from and / or to the upper side of the connector housing (10).

9. Connector housing (10) according to any one of Claims 6 to 8, wherein a connector housing latching element is formed on a lower side of the connector housing (10).

10. Connector housing (10) according to any one of Claims 6 to 9, further comprising a door element (24), with a first holding device (25) on one side of the door element (24), a second holding device for movably fastening the door element (24) to the connector housing (10), wherein the container receiving region (27a) for receiving the concentrate container adapter is formed on the door element (24), the door element (24) being pivotable around the second holding device in such a way that, in a first position, the second side opposite the first side of the door element (24) is movable under the connector housing (10) and, in a second position, the door element (24) extends away from the connector housing (10).

11. Connector housing (10) according to any one of Claims 6 to 10, wherein a wall material of the container receiving region (27a) is flat, or the container receiving region (27a) has a contour, which serves to support the concentrate container adapter.

12. Connector housing (10) according to Claim 10 or 11, further comprising a first engagement element (24a), which is formed on the second side of the door element (24), a second engagement element (24b), which is formed on the connector housing (10), such that, in the first position of the door element (24), the first engagement element (24a) can engage with the second engagement element (24b).

13. Connector housing (10) according to any one of Claims 6 to 12, further comprising a detection unit for detecting a concentrate container adapter.

14. Connector housing (10) according to Claim 13, wherein the detection unit is a radar sensor for the motion and / or position detection of the concentrate container adapter, and / or the detection unit is at least one micro-pushbutton, and / or the detection unit is a colour sensor and a light source, which is arranged on the lower side of the connector housing (10), and / or the detection unit is a light-transmitting unit and a light-receiving unit for detecting the presence of a reflection geometry at a certain position.

15. Connection system, comprising a connector housing according to any one of Claims 6 to 14, and a concentrate container adapter according to any one of Claims 1 to 5.