CLEANING DEVICE AND CLEANING SYSTEM FOR A BLOOD TREATMENT DEVICE

Abstract

The invention relates to a cleaning device, which has a base body (1), a first and a second line element (2a, 2b), which extend perpendicularly in the base body (1) from a first surface of the base body (1). In addition, the cleaning device has a first through hole (3a), wherein the first through hole (3a) extends at a first point of the first line element (2a) spaced apart from the first surface of the base body (1) to a first lateral surface of the base body (1), which differs from the surface of the base body (1), a first connecting element (31a), which extends from the base body (1) along the first through hole (3a) from the first lateral surface of the base body (1), so that the middle line of the through hole (3a) further extends from the first lateral surface of the base body (1) through the first connecting element (31a).

Claims

1. A cleaning device for a blood treatment device comprising a base body, a first and a second line element which extend in the base body from a first surface of the base body, a first through hole, wherein the first through hole extends from a first point of the first line element spaced apart from the first surface of the base body to a surface of the base body, which differs from the first surface of the base body.

2. The cleaning device according to claim 1, wherein a connecting duct is formed between the first and the second line element at a second point of the line elements which is spaced apart from the surface of the base body.

3. The cleaning device according to claim 1, wherein the first through hole extends to a first lateral surface of the base body, at a third point, which is spaced apart from the first surface of the base body, the second line element has a second through hole to the first lateral surface of the base body, which differs from the first surface of the base body.

4. The cleaning device according to claim 3, wherein at least one blocking element is attached in the first and second line element, so that no fluidic connection exists between the connecting duct to the first and second through hole, and the blocking element.

5. The cleaning device according to claim 1, wherein the base body is formed of a first base element and a second base element, wherein the first and second base element in each case have a groove, which has a semicircular cross section, for forming the connecting duct, and the first and second base element in each case have two recesses, which have a semicircular cross section, for forming the first and second line element each when connecting the first and second base element.

6. The cleaning device according to claim 1, wherein the base body is formed of a first base element and a second base element, and the first base element has two blind bores and the second base element has two through bores, the diameter of which corresponds to the blind bores, for forming the first and second line element, as well as the first base element and second base element have a groove, which has a semicircular cross section, for forming the connecting duct.

7. The cleaning device according to claim 1, further having a first cylindrical receptacle comprising at least one through openings and/or a second cylindrical receptacle comprising a through opening, wherein a cylindrical appendage is in each case provided on the through openings, and at least one tubular connecting elements, which can be attached to the appendages and which can be introduced into the connecting duct and/or the through hole in such a way that they connect the receptacles received in the line elements, wherein the first through hole as well as the connecting duct are open towards the first surface, so that the cylindrical receptacles as well as the tubular connecting elements can be placed into the base body.

8. The cleaning device according to claim 1, wherein a middle element located between the first and second line element is formed in a curved manner and extends away from the first surface.

9. The cleaning device according to claim 1, further having at least one sealing shell in the first and/or second line element (2a, 2b), wherein the sealing shell is cylindrical and has at least one lateral passage opening, the diameter of which corresponds to the connecting duct and/or to the through hole and is formed on the jacket surface of the sealing shell (24).

10. A cleaning system for a blood treatment device comprising a housing for connection to a blood treatment device the cleaning device of claim 20 which is movably arranged in the housing a first closing element, by means of which a fluid flow from the first line element can be connected via the first connecting element, and/or a second closing element, by means of which a fluid flow from the second line element can be connected via the second connecting element, a drive element for moving the cleaning device, a sensor attached in the housing, for capturing a movement of the cleaning device.

11. The cleaning system according to claim 10, wherein the sensor is a light barrier on a printed circuit board.

12. The cleaning system according to claim 10, further having at least one guide rail formed in the housing on which the cleaning device can be shifted, and/or the first drive element has a spindle nut and an electric motor comprising a threaded spindle.

13. The cleaning system according to claim 10, wherein the threaded nut is formed on the middle element of the cleaning device, and/or the middle element has a protrusion, which is formed in the direction of the light barrier, so that a triggering of the light barrier can be attained in response to a moving.

14. Use of a cleaning system according to claim 10 in the case of a blood treatment device.

15. Use of a cleaning device according to claim 1 in the case of a blood treatment device.

16. The cleaning device according to claim 3, wherein at least one blocking element is attached in the first and second line element, so that no fluidic connection exists between the connecting duct to the first and second through hole, and the blocking element has predetermined breaking points.

17. The cleaning device according to claim 1, further having a first cylindrical receptacle comprising at least two through openings and/or a second cylindrical receptacle comprising a through opening, wherein a cylindrical appendage is in each case provided on the through openings, and at least two tubular connecting elements, which can be attached to the appendages and which can be introduced into the connecting duct and/or the through hole in such a way that they connect the receptacles received in the line elements, wherein the first through hole as well as the connecting duct are open towards the first surface, so that the cylindrical receptacles as well as the tubular connecting elements can be placed into the base body.

18. The cleaning device according to claim 1, wherein a middle element located between the first and second line element is formed in a curved manner and extends away from the first surface perpendicularly.

19. The cleaning device according to claim 1, wherein blood treatment device is a dialysis machine.

20. The cleaning device of claim 1, further comprising a first connecting element, which extends from the base body along the first through hole from the first lateral surface of the base body, so that the first through hole further extends from the first lateral surface of the base body through the first connecting element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In which

[0044] FIG. 1 shows a schematic diagram of a cleaning device according to a first embodiment;

[0045] FIGS. 2a, 2b show a schematic use of the cleaning device according to the first embodiment;

[0046] FIG. 3 shows a schematic diagram of the cleaning device comprising a blocking element;

[0047] FIG. 4 shows a schematic diagram of the cleaning device according to a second embodiment;

[0048] FIG. 5 shows a schematic diagram of the cleaning device according to a third embodiment;

[0049] FIG. 6 shows a schematic diagram of the cleaning device according to a fourth embodiment;

[0050] FIG. 7 shows a schematic diagram of the cleaning device according to a fifth embodiment;

[0051] FIG. 8 shows a schematic diagram of a cleaning shell for a cleaning device;

[0052] FIG. 9a shows a schematic illustration of a cleaning device according to a sixth embodiment;

[0053] FIG. 9b shows a schematic diagram of the cleaning device according to the sixth embodiment for use in a blood treatment device,

[0054] FIG. 10 shows a schematic diagram of a cleaning device according to a seventh embodiment for use in a blood treatment device;

[0055] FIGS. 11a, b show a schematic diagram of the cleaning device according to the seventh embodiment for use in a blood treatment device;

[0056] FIGS. 12a, b show a schematic diagram of the cleaning device according to an eight embodiment;

[0057] FIGS. 13a, b show a schematic diagram of a use of the cleaning device according to the eighth embodiment;

[0058] FIG. 14 shows a schematic diagram of a cleaning device according to a ninth embodiment;

[0059] FIG. 15 shows a schematic illustration of a cleaning system;

[0060] FIG. 16 shows a housing cover and a housing portion, and

[0061] FIG. 17 shows a schematic illustration of connecting spouts for introduction into a cleaning device.

DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

[0062] With reference to FIG. 1, a first embodiment will be described below. FIG. 1 thereby shows a cleaning device comprising a base body 1. The base body 1 further has a first and second line element 2a, 2b, which are formed as hollow cylinder here and each have a bottom plate on an underside of the first and second line element 2a, 2b and are thus fluidically closed on an underside. Each of the two line elements 2a, 2b has a through hole 3a, 3b, which is formed on the line elements 2a, 2b on a side, which differs from the surface side. The line elements 2a, 2b are formed to run parallel to one another here.

[0063] The through holes 3a, 3b are further formed at an equal distance from the surface. The connecting elements 31a, 31b in each case extend parallel to one another from the through holes 3a, 3b. In the embodiment illustrated in FIG. 1 here, the connecting elements 31a, 31b lead to an adapter hollow cylinder located between the line elements 2a, 2b. A bag comprising bicarbonate concentrate can be fastened to this adapter hollow cylinder. The concentrate bag can have a flexible material, in particular of PVC, PVT or polyethylene and can be fused to the base body 1. A connecting duct 5 runs between the line elements 2a, 2b above the connecting elements 31a, 31b, that is, closer to the surface of the base body 1. The connecting duct 5 fluidically connects the line elements 2a, 2b, so that a fluid, which flows in from the surface side, can flow via the first line element 2a and the connecting duct 5 to the second line element 2a, 2b and from there out of the base body 1.

[0064] If this cleaning device is used during a blood treatment, in particular a dialysis treatment, a cleaning step can take place in this cleaning device. As shown in FIG. 2a, connecting spouts 6a, 6b, as shown in FIG. 17, which are fluidically connected to the dialysis machine, are moved into the line elements 2a, 2b from the surface of the base body 1 for this purpose. For this purpose, linear guides can be provided on the inner surface areas of the line elements 2a, 2b, in which the connecting spouts 6a, 6b can be moved in a linearly shiftable manner. In the alternative, the inner surfaces can be formed to be smooth, so that the connecting spouts 6a, 6b can be linearly shifted. In the alternative, internal threads can be arranged in the line elements, so that the connecting spouts 6a, 6b are introduced by means of a rotational movement.

[0065] The sequence of operations for cleaning the connecting spouts by means of the cleaning device begins with an attaching of the cleaning device, to which a concentrate bag is attached, to a dialysis machine. The connecting spouts 6a, 6b of the dialysis machine move into the line elements 2a, 2b. A stamping device, which is shown in FIG. 2, is thereby attached to the connecting spouts 6a, 6b. If the connecting spouts move into the line elements 2a, 2b in a first, upper position, as shown in FIG. 2, the punching elements close the line elements 2a, 2b below. In other words, the top side of the punching elements is located in one plane with the underside of the connecting duct 5. Flowing out of the connecting spouts 6a, 6b, fluid can thus not flow to the through holes 3a, 3b or connecting elements 31a, 31b.

[0066] In this cleaning position, however, a fluid flow between the connecting spouts can take place via the connecting duct 5. If the connecting spouts 6a, 6b move further into a position shown in FIG. 2b, away from the surface side of the base body 1 within the line elements 2a, 2b, the punching elements ultimately reach to a position below the through holes 3a, 3b. In this position, fluid can flow out of the connecting spouts 6a, 6b via the connecting elements 31a, 31b into the concentrate bag, whereas a fluid flow is fluidically closed by the connecting duct 5 via lateral surfaces of the connecting spouts 6a, 6b. In the alternative, FIG. 3 shows a schematic diagram of the cleaning device comprising a blocking element 21a. The blocking element 21a is arranged in the line element 2a, 2b in such a way that it allows a fluidic connection between the line elements 2a, 2b via the connecting duct 5, but prevents a fluidic connection of the connecting duct 5 to the connecting elements 31a.

[0067] The blocking element 21a is advantageously in each case formed as circular blocking element 21a in line elements 2a, 2b below the lower edge of the connecting duct 5. If the connecting spouts 6a, 6b are moved into the second position, that is, into a position in the line elements 2a, 2b, in which a fluidic connection to the concentrate bag is formed, and the lateral surfaces of the connecting spouts 6a, 6b thus close the connecting duct 5, the connecting spouts 6a, 6b break through the blocking elements 21a in order to get into this position. For this purpose, the blocking elements 21a can have predetermined breaking points and can, for this purpose, have a smaller wall thickness, for example in a partial portion or can be formed to be weakened in a partial portion.

[0068] FIG. 4 shows a schematic diagram of the cleaning device according to a second embodiment. The line elements 2a, 2b extend perpendicular to a surface of the base body 1 here and are formed as blind holes or blind bores. On a side, which is spaced apart from the surface, in particular directly adjacent to a bottom area of the line elements 2a, 2b, the through holes 3a, 3b are formed here. They extend parallel within the base body 1 to a lateral surface here. The connecting elements 31a, 31b are formed adjacent to these through holes 3a, 3b. They protrude essentially perpendicularly from the surface of the base body 1. If connecting spouts 6a, 6b, as illustrated in FIG. 17, are moved into the line elements 2a, 2b when using the cleaning device according to the second embodiment, said connecting spouts can be flushed in the line elements 2a, 2b. Fluid thereby flows out of a connecting spout 6a, 6b into one of the line element 2a, 2b and from a line element 2a, 2b via the connecting duct 5 to the other line element 2a or 2b, respectively. During this flushing process, the connecting elements 31a, 31b are closed, for example, by means of a closing elements, which can be brought into contact therewith.

[0069] The fluid thereby flushes around the connecting spouts 6a, 6b. After this cleaning process, the fluid, which remains in the line elements 2a, 2b, can be suctioned off via the through holes 3a, 3b and adjacent connecting lines. It is advantageous for this purpose when a lower edge of the through holes 3a, 3b is adjacent to the underside of the line elements 2a, 2b. FIG. 5 shows a schematic diagram of the cleaning device according to a third embodiment. The base body 1 is thereby formed of a first base element 11a and a second base element 11b, so that a plate results in response to a connecting, for example screw-connecting, adhering or fusing. The connecting duct 5 is thereby created only after a connecting of the base elements, whereby a negative in the form of a recess with a semicircular cross section is formed here on each base element.

[0070] Along their longitudinal axis, these recesses extend essentially perpendicularly to the recesses of the line element 2a, 2b, which are formed of recesses, which have a semicircular cross section. A through hole 3a is thereby formed only on the line element 2a. In the case of a use of the cleaning device with a dialysis machine, fluid can thereby flow in via a line element 2a, can flow through the connecting duct 5 to the second line element 2b, and from there can flow back again via the connecting duct 5. At the end of the cleaning, the remaining fluid can be removed via the connecting element 31a, which had previously been closed, for instance by a valve, which is now open.

[0071] FIG. 6 shows a schematic diagram of the cleaning device according to a fourth embodiment. Here, the base body 1 also has a first and a second base element 11a, 11b, which are connected to one another to form the connecting duct 5. The fluidically tight connection can also be attained here, for example by adhering, fusing or screw-connecting. The second base element 11b thereby has two through holes or through bores here, while the first base element 11a has blind holes, the diameter of which corresponds to the through holes. To form the connecting duct 5, the first as well as the second base element 11a, 11b has recesses, which each have a semicircular cross section, extending between the through bores or blind holes, respectively.

[0072] In this embodiment, a through hole 3a comprising connecting element 31a adjacent thereto is additionally also formed only on one line element 2a. The cleaning with connecting spouts 6a, 6b of a dialysis machine, which can be moved into the line elements 2a, 2b, takes place according to embodiment three. FIG. 7 shows a schematic diagram of the cleaning device according to a fourth embodiment. The cleaning device thereby further has a first cylindrical receptacle 32a, formed here as flushing pot comprising two through bores. In addition, the cleaning device has a second cylindrical receptacle 32b comprising a through bore. In their outer diameter, the flushing pots correspond to the inner diameter of the line elements 2a, 2b, so that they can be inserted into the latter.

[0073] In the inserted position, the through openings of the receptacles 32a, 32b are aligned with the connecting duct 5 formed in the base body 1 and with the through hole 3a. Connecting elements 51a, 51b, formed here as hoses, are mounted or attached, respectively, to appendages, which are provided on the receptacles 32a, 32b. In the case of this embodiment, the recesses in the base body 1 for forming the connecting duct 5 or the through hole 3a, respectively, do not have to be closed towards the surface of the base body 1. On the contrary, the connecting duct 5 and the through hole 3a through the connecting element 51a, 51b are formed in such a way that they are closed towards the surface. As illustrated in FIG. 7, threaded bores can be attached in the base plate, so that the receptacles, which have lateral tabs 33a, can be screw-connected in the base body 1. In the alternative, the receptacles can be fastened to the line elements 2a, 2b in the base body 1 by means of a press fit or can be adhered in the latter.

[0074] FIG. 8 shows a schematic diagram of a cleaning shell for a cleaning device, in particular for introduction into the line elements 2a, 2b. To be able to establish a fluidic connection, through bores are in each case formed in the cleaning shells, a through bore in the sealing shell 24 shown here. FIG. 9a shows a schematic illustration of a cleaning device according to a sixth embodiment. A concentrate bag can thereby be attached to the cleaning device in the receptacle 31. For this purpose, the concentrate bag can be in fluidic connection, for example with recesses 12a, 12b or can be pressed into them. The recesses 12a, 12b can be formed in the cleaning device and can allow a fluidic connection between a concentrate bag and the connecting spouts 6a, 6b. The cleaning device further has two line elements 2a, 2b, which are connected via a connecting duct 5. The cleaning device can thereby be arranged in a dialysis machine so as to be capable of being shifted in such a way that connecting spouts 6a, 6b of the dialysis machine, which are arranged so as to be vertically shiftable, can move into the line elements 2a, 2b for cleaning the connecting spouts 6a, 6b, and can move into the recesses 12a, 12b after a horizontal shifting of the cleaning device, so as to be fluidically connected to the concentrate bag.

[0075] If a concentrate bag hangs in the receptacle 31 provided for this purpose, the cleaning device moves horizontally into a device interior of the dialysis machine and positions the concentrate bag adapter below the connecting spouts in this way. These connecting spouts move vertically downward into openings of the concentrate bag and connect the bag for the dialysis operation in this way. As soon as the therapy has ended and the concentrate bag is emptied, the connecting spouts move vertically upward out of the concentrate bag adapter. The cleaning device then partially moves horizontally out of the dialysis device into the cleaning position. In the cleaning position, the connecting spouts move into the line elements 2a, 2b again. In this position of the cleaning unit, the concentrate bag hangs in front of the dialysis machine and can be removed. A new bag is hooked in again after the subsequent surface cleaning.

[0076] FIG. 10 shows a further schematic diagram for a use of a cleaning device on a dialysis machine. The nursing staff inserts the concentrate bag into a receptacle on a connector housing of the dialysis machine, in which the connecting spouts 6a, 6b are arranged. The receptacle is designed in such a way that the connecting openings in the concentrate bag are located exactly below the connecting spouts 6a, 6b. After ending the cleaning, the connecting spouts 6a, 6b move vertically upward out of the cleaning device. In response to their vertical downward movement, the connecting spouts 6a, 6b can connect the concentrate bag to a dialysate circuit through openings in the connector housing. After the therapy and the emptying of the concentrate bag, the connecting spouts 6a, 6b return into the upper end position. The cleaning device subsequently moves horizontally to below the connecting spouts 6a, 6b, so that they can move into the line elements 2a, 2b for the cleaning. The concentrate bag can now be removed and the surface disinfection can be performed. A new concentrate bag is subsequently inserted into the receptacle.

[0077] FIGS. 11a) and b) show the above-described arrangement from a front view with a connecting position FIG. 11a and a cleaning position FIG. 11b. FIG. 12 shows a schematic diagram of the cleaning device according to an eighth embodiment. In the case of this embodiment, the cleaning device has a 11 receiving unit for receiving a concentrate bag, wherein the cleaning device is formed to be movable, in particular shiftable, to the receiving unit. The connecting duct 5 runs between the line elements 2a, 2b, in a middle portion, wherein the connecting duct is formed to be U-shaped, so that a free space is formed between the line elements 2a, 2b. A certain relative position between cleaning device and receiving unit can be ensured by means of a control element, for example a spring, whereby the spring can be attached to the dialysis machine itself, so that the cleaning device always experiences a force, which brings it into the cleaning position.

[0078] The receiving unit has receptacles, for example receiving bores, for a concentrate bag, so that the concentrate bag is positioned in such a way that the connecting spouts 6a, 6b of the dialysis machine can be securely moved in said receptacles. In the case of this embodiment, the receiving bores are arranged for this purpose in the cleaning position so as to be aligned with the line elements 2a, 2b, while, when a concentrate bag is located in the receiving unit, the cleaning device is shifted in the connecting position in such a way that said concentrate bag is arranged below the connecting spouts. A sequence of a cleaning method will be described below. The start position of the cleaning device is thereby the cleaning position as shown in FIGS. 12 a, b. In this position, a concentrate bag can be hooked into the receiving unit. The positioning can be facilitated by means of bevels provided on the receiving unit, as well as by recesses formed in the cleaning device, for example semicircular grooves. In other words, the nursing staff can already hook a new concentrate bag to the receiving unit while the cleaning device is located in a front position, as shown in FIG. 12.

[0079] A press-fit element 12 shown in FIGS. 13 a and b can further formed on the underside of the receiving unit or of the housing 9, respectively. The press-fit element can be arranged in the receiving unit via a pre-loaded spring, that the concentrate bag is pushed into a position below the connecting spouts 6a, 6b. For this purpose, the press-fit element is pushed into the receiving unit only by an attaching of a concentrate bag. As soon as the connecting spouts 6a, 6b are moved out of the line elements 2a, 2b and the line elements 2a, 2b can thus be shifted, the press-fit element is pushed out of the receiving unit by means of the spring force and shifts the concentrate bag underneath the connecting spouts 6a, 6b. In other words, the two connecting spouts 6a, 6b move vertically upward out of the line elements 2a, 2b after the cleaning of the dialysate circuit. Following this, the press-fit element 12 moves out on the underside of the receiving unit and pushes the concentrate bag into the receiving bores along the bevel in this way.

[0080] In addition to the vertical direction, the movement along the bevel also includes a horizontal direction, whereby the cleaning device is horizontally shifted, so that the receiving bores become free. To connect the concentrate bag to the dialysate circuit, the connecting spouts 6a, 6b move vertically downward and connect the concentrate bag at the corresponding openings. After the therapy, the concentrate bag is emptied, the connecting spouts 6a, 6b move out of the concentrate bag, and the press-fit piece 12 moves back into the receiving unit. The nursing staff can then remove the concentrate bag. Due to the removal of the concentrate bag, the cleaning device returns into the cleaning position, so that the connecting spouts 6a, 6b can move vertically downward into the cleaning position again. The nursing staff performs the surface disinfection and hooks in a new concentrate bag during the dialysate circuit cleaning.

[0081] FIG. 14 shows a schematic diagram of a use of the cleaning device according to a ninth embodiment. The base body 1 thereby has two arm-like elements, in which the line elements 2a, 2b are formed. A middle element 8, which is curved in the opposite direction to the direction, in which the line elements 2a, 2b extend in the base body 1, is formed between these arm-like elements. Each of the two line elements 2a, 2b is connected to a through hole 3a, to which a respective connecting element 31a, 31b is adjacent. A bore for receiving a threaded nut can further be formed in the middle element 8. In the alternative, the threaded nut can be formed so as to be cut directly into the middle element 8.

[0082] In addition, a positioning element 81, which interacts with a sensor assigned to the dialysis machine and which can trigger a light barrier, for example as protrusion 81 from the middle element 8, can be formed on the middle element 8. FIG. 15 shows a schematic diagram of a cleaning system. A cleaning device according to the above-mentioned embodiment is arranged in a housing 9 here. To guide the cleaning device, guide rails 91 can be formed in the housing 9. The guide rails 91 can be two symmetrically arranged beams on the bottom of the housing 9. To prevent a tilting of the cleaning device, horizontal surfaces, which always cover an area of the cleaning device, can be located at one end of the beams.

[0083] To regulate a fluid flow, non-illustrated blocking elements, for example valves, can be formed on the connecting elements 31a, 31b. To move the cleaning device, a drive element is arranged in the housing 9. To capture the movement of the cleaning device, a printed circuit board is arranged in the housing 9 in such a way that the protrusion 81 on the middle element 8 can interact with forked light barriers, which are provided on the printed circuit board 94. In this embodiment, the drive element is an electric motor 92, which drives a threaded spindle, which engages with the threaded nut on the middle element 8. The housing 9 can further have a cover 95, which can be screw-connected to the housing 9 after the assembly of the elements.

[0084] The housing 9 can further have a cover 95, a sealing element between the dialysis device and the housing 9, as well as a fastening adapter. To more easily position the cover 95 on the housing 9, positioning aids in the form of stops, as shown in FIG. 16, are located on an underside, on a front side, as well as on two further sides.

[0085] After the insertion of the cover 95, the latter is screw-connected to the housing 9 at three points. A rubber stopper in the color of the cover 95 is mounted to the screwed-in screw heads. They are to close the bores, so that the cover 95 has a plane surface area. As shown in FIG. 16, the groove on the upper side of the cover 95 serves to receive the concentrate bag on the housing 9. Due to the weakening of the wall thickness of the cover 95 at this point, the underside is reinforced with material there. To facilitate the hook-in of the concentrate bag, the surface area between the groove slopes all the way to the front edge. The housing 9 can also decrease its diameter between the lateral surfaces to the front, so that a concentrate bag can be easily pushed on over the housing 9.