Suction unit, medical device and medical assembly

Abstract

The utility model discloses a suction unit (6), a medical device (100) and a medical component, the suction unit (6) is prepared, designed and arranged to be in fluid connection with a container, preferably a barrel (10), or the suction unit (6) is fastened on the container, preferably the barrel (10). The suction unit (6) has an external connection sleeve (3), by means of which the suction unit is mechanically and fluidically connectable or detachably connectable to a medical device (100), preferably a dialysis machine.

Description

Technical Field

[0001] The utility model relates to a suction unit, a medical device and a medical component. The suction unit is used in a medical device, in particular in a dialysis machine, to suck a liquid, in particular a dialysis concentrate, from a container, preferably a barrel, and supply it to a medical process, in particular a dialysis process. Background Art

[0002] When, for example, a patient's renal function is limited or set, a dialysis machine is used to clean the patient's blood. To this end, the dialysis machine has a dialyzer through which the patient's blood to be cleaned flows on the one hand and a dialysate flows on the other hand, wherein certain dissolved substances (e.g., urea) are transferred from the blood to the dialysate.

[0003] For this purpose, concentrate needs to be supplied to the dialysis machine.

[0004] For powdery or crystalline concentrates, a specially provided cartridge or bag can be provided on the dialysis machine. For this reason, although neither a suction tube nor a leather case is needed, the acidic concentrate is provided only in aqueous solution due to its composition.

[0005] Existing technology

[0006] DE 88 13 659 U1 describes a bag which is fastened with its upper end in a suspended manner to a support frame of a dialysis machine and which is connected at its lower end to a removal hose via a connector by means of a piercing pin. However, compared to a rigid bucket, a filled bag has the disadvantage that it is difficult to stack and transport.

[0007] To aspirate the aqueous dialysis concentrate, dialysis machines are equipped with aspiration tubes that are inserted into (externally replaceable) barrels. To be able to rinse and clean these aspiration tubes, for example after a dialysis treatment, they are inserted into holsters that are part of the dialysis machine. A disadvantage of these barrels is that these holsters take up considerable space inside the dialysis machine. Utility Model Content

[0008] The object of the present invention is to free up the space or installation space required by a holster inside a medical device, in particular a dialysis machine.

[0009] This object is achieved with a suction unit according to the invention, a medical device according to the invention and a medical assembly according to the invention.

[0010] The suction unit according to the invention is designed and arranged to be mechanically and fluidically connected to a (rigid) container, preferably a barrel, or the suction unit is fastened or formed on a (rigid) container, preferably a barrel. The suction unit has an external connecting sleeve, via which it can be mechanically and fluidically connected (coupled) or mechanically and fluidically detachably connected (coupled) to the medical device. This container-side / barrel-side connecting sleeve and its possibility of coupling to the medical device make it possible to free up space or structural space within the medical device that would otherwise be required by a holster, since the medical device itself no longer requires a suction tube and, accordingly, a holster.

[0011] When the suction unit is fastened to a container, preferably a barrel, or is (in particular) formed integrally therewith, the object can be referred to as liquid supply means.

[0012] In a particularly preferred first principle of the invention, the suction unit has a container lid, preferably a bucket lid, by means of which the suction unit can be screwed onto the top side of the container, preferably a bucket, wherein a suction line is arranged on the bottom side of the container / bucket lid. During operation of the suction unit, the suction line extends into the container / bucket, preferably to the bottom of the container / bucket.

[0013] The first principle of the invention has the advantage that by moving the suction tube from the medical device to the suction unit or to a container / barrel in the medical device itself, space no longer has to be provided for a holster.

[0014] The suction line can be a hose. This increases the flexibility of the suction unit for new containers / buckets whose heights may need to be changed, provided the hose dimensions are adequately determined. The suction line can be a suction pipe (suction wand or nozzle). By utilizing the suction pipe provided with the container / bucket, new containers / buckets whose heights may need to be changed can be easily integrated without having to adapt the conventional holster or the suction pipe on the device.

[0015] In a particularly preferred development of the first principle, the outer connecting sleeve is an upper connecting sleeve which is formed integrally on the container lid / tub lid.

[0016] According to the second principle of the present invention, it is also possible to fasten the suction unit to or (for example, integrally) form it on the lower wall section or the bottom of the container / barrel. This eliminates the need for suction lines either on the space-critical medical device or in the container / barrel, thereby reducing the outlay on the device.

[0017] Preferably, the outer connecting sleeve has an undercut with at least one groove on its outer circumference. If the groove is circumferential, the rotational position is not taken into account when plugging the coupling, thereby simplifying the rapid mechanical coupling and fluid connection of the suction unit and thus the container / barrel to the medical device.

[0018] The object is also achieved by a medical device, in particular a dialysis machine, which has a device-side connecting line which is fastened to the medical device on the one hand and to which a coupling is fastened on the other hand. The coupling is designed and provided for a detachable mechanical (preferably positive-locking) and fluidic connection to an external connecting sleeve of a suction unit.

[0019] Preferably, latching bodies (for example latching lugs or in particular latching balls) are arranged on the inner circumference of the coupling, which latching bodies can be moved radially into the recesses by an axially movable (preferably spring-biased) actuating sleeve.

[0020] In a preferred development of the medical device, a plug-in sleeve is arranged (for example on an outer wall, in particular on a front wall or a side wall), onto which the coupling can be plugged when the plug-in sleeve is separated from the external connecting sleeve, in particular during a container / canister exchange.

[0021] In a preferred improvement of the medical device, a sensor device operatively connected to the socket is provided, which is designed and arranged to detect a plugged-in coupling. The pump of the medical device can then be started, for example, when the sensor device reports that there is no coupling on the socket.

[0022] In a preferred embodiment of the medical device, the medical device has a placement surface for the container / bucket, thereby avoiding mechanical overloading of the connection between the coupling and the external connecting sleeve of the suction unit, for example due to unintentional movement of the medical device while the container / bucket is stationary.

[0023] The object is also achieved by a medical assembly, in particular a dialysis assembly, comprising a medical device according to the invention, in particular a dialysis machine, and a container, preferably a bucket, wherein the medical device and the container / bucket are fluidically connectable or connected to one another by means of a suction unit according to the invention.

[0024] The following describes embodiments of the present invention based on the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the main part of the suction unit according to the first embodiment of the present utility model;

[0026] Figure 2 is the entire suction unit according to an embodiment of the present utility model;

[0027] Figure 3 is based on Figure 2 A barrel with a suction unit according to an embodiment of the present invention;

[0028] Figure 4 It is a dialysis assembly with a dialysis machine and a barrel, according to Figure 2 The suction unit of the embodiment in is fastened to the dialysis machine;

[0029] Figure 5 yes Figure 4 Details of the dialysis machine in; and

[0030] Figure 6 There are different barrels Figure 2 An embodiment of the suction unit in.

[0031] Among them: 1-barrel cover; 2-lower connecting sleeve; 3-external connecting sleeve / upper connecting sleeve; 4-groove; 5-suction pipeline; 6-suction unit; 7-barrel bottom; 10-barrel; 20-traditional barrel cover; 21-through part; 100-medical equipment / dialysis machine; 101-storage surface; 102-coupling part; 103-connecting pipeline on the equipment side; 104-sleeve; 110-operating sleeve; 120-locking body / locking ball. DETAILED DESCRIPTION

[0032] Figure 1 The main parts of the suction unit 6 according to an embodiment of the present invention are shown.

[0033] Figure 1 The drum cover 1 is schematically shown in a half-section with a lower connecting sleeve 2 and an upper connecting sleeve 3. The drum cover 1 is formed integrally with the lower connecting sleeve 2 and the upper connecting sleeve 3, wherein the upper connecting sleeve has a circumferential groove 4 or undercut on its outer circumference for secure and reversible fixing of a coupling of a dialysis machine.

[0034] Figure 2 1 is a half-section view of the entire suction unit 6 according to an embodiment of the present invention.

[0035] The bucket-side suction line 5 in the form of a hose can be attached to the lower sleeve 2 of the bucket cover 1. The suction line 5 can also be designed as a rigid suction pipe and / or as a fixed component of the bucket cover 1. When a sufficient length is achieved, a flexible hose has the advantage that the suction unit can be used with buckets of different heights, since the remaining hose section can simply rest on the bottom.

[0036] Figure 3 A half-section view showing the Figure 2 The embodiment of the embodiment of FIG. 1 shows a tub 10 with a suction unit 6 . The hose is suspended into the tub 10 and ends approximately above the bottom 7 .

[0037] The bucket cover 1 can be screwed onto the bucket 10 by means of a thread (valve not shown). Alternatively, if the bucket cover is made of a partially elastic material, the bucket cover 1 can be plugged in or otherwise covered.

[0038] In order to provide better ventilation when emptying the tub 10 , openings may be provided in the tub cover 1 .

[0039] To reclose the barrel 10, the entire suction unit 6 can be removed and replaced by a conventional fully closed screw cap. Alternatively, the suction unit 6 can remain on or in the barrel 10, wherein a closure cap (not shown) is then provided and then inserted onto the upper sleeve 3.

[0040] Figure 4 The diagram shows a dialysis assembly with a dialysis machine 100. The dialysis machine 100 has a placement surface 101 on which the bucket 10 is placed. An apparatus-side connecting line 103 is arranged on the dialysis machine, said connecting line having a coupling 102 at its free end section.

[0041] Figure 4 The three states of the dialysis assembly are shown in its three parts a, b and c. Figure 4 In a, the bucket 10 is not connected to the dialysis machine 100. The coupling 102 is located on the socket on the device side. Figure 4 In b, the coupling part 102 has been removed from the socket 104 on the device side. Figure 4 c shows a coupling 102 plugged onto the container 10 , more precisely onto the external connection socket 3 of the suction unit 6 . Aqueous solution can be sucked from the container 10 into the dialysis machine 100 via line 103 .

[0042] The dialysis machine 100 can have a sensor system (not shown) for detecting the coupling 102 . For example, a magnet can be installed in the coupling 102 , which activates a reed sensor which is in turn located in the immediate vicinity of the socket 104 .

[0043] Possible implementations of the coupling 102 of the device-side connecting line 103 can be Figure 5 As can be seen in FIG. , similar to conventional dialyzer couplings of the prior art, the coupling 102 has a spring-guided sleeve 110 which, in order to be separated from the plug-in sleeve 104 or the connecting sleeve 3, must be moved backwards in order to pull the latching ball 120 contained in the coupling 102 out of the undercut or groove 4. When the sleeve 110 is released, the latching ball 120 is pressed back into the inner position.

[0044] According to the second principle of the present invention, the position of the connecting sleeve 3 can also be moved to the lower end of the barrel 10. In this way, the suction line 5 extending from the bottom to the top in the barrel 10 is omitted.

[0045] It is also possible to design the barrel 10 so that it already includes the suction unit 6 according to the present invention. Therefore, the suction unit 6 is not a separate component. The object thus formed is called a liquid supply device.

[0046] In the first principle, the suction unit 6 with the tub cover 1 together with the two sleeves 2, 3 and the suction line 5 is not a separate component. Instead, the tub 10 has a suction line 5 (hose or suction pipe) which extends to the bottom 7 of the tub 10 and can be connected at the top via a coupling 102. To close the connecting sleeve 3, an additional closing plug (not shown) can be used.

[0047] Although Figure 4 In each case, only one barrel 10 is shown with an associated suction unit 6 for aspirating the barrel contents, but the present invention also includes variants in which the number of barrels 10 with suction units 6 is increased. Preferably, the dialysis machine 100 comprises a double assembly, namely a coupling 102, a machine-side connecting line 103, and a plug 104, in order to be able to aspirate two concentrates from two barrels 10.

[0048] Figure 6 Another possible embodiment of the bucket 10 is shown. Figure 1 、 2 , 3 and 4, the bucket 10 has a suction unit 6 for connection to the coupling 102. As already mentioned, a suction line 5 can be arranged on the bucket cover 1 of the suction unit 6, which extends into the bucket 10.

[0049] In order to be able to draw concentrate from the bucket 10 even with a conventional dialysis machine having its own suction line, the bucket 10 has further connection options. For this purpose, a bucket cover 20 is provided, through which a conventional machine-side suction line known from the prior art can be inserted through an opening 21. In this case, the connection via the connecting sleeve 3 is omitted.

Claims

1. A suction unit (6), which is designed and arranged to be mechanically and fluidically connected to a container, or which is fastened to a container, characterized in that The suction unit (6) has an external connecting sleeve (3) via which the suction unit (6) can be mechanically and fluidically connected or detachably connected to a medical device (100).

2. The suction unit according to claim 1, characterized in that The suction unit (6) has a container cover, by means of which it can be mechanically and fluidically connected to the upper side of the container, wherein a suction line (5) is arranged on the lower side of the container cover.

3. The suction unit according to claim 2, characterized in that The external connecting sleeve is an upper connecting sleeve (3) integrally formed on the container cover.

4. The suction unit according to claim 1, characterized in that The suction unit (6) is arranged on a lower wall section or bottom (7) of the container.

5. The suction unit according to claim 1, characterized in that The outer connecting sleeve (3) has an undercut with at least one groove (4) on its outer circumference.

6. The suction unit according to claim 1, characterized in that The container is a barrel (10).

7. The suction unit according to claim 1, characterized in that The medical device (100) is a dialysis machine.

8. The suction unit according to claim 2, characterized in that The container cover is a barrel cover (1).

9. The suction unit according to claim 2, characterized in that The container lid can be screwed onto the top side of the container.

10. A medical device (100) comprising a connecting line (103), which is fastened to the medical device (100) on one hand, characterized in that On the other hand, a coupling portion (102) is fastened to the connecting pipe (103), and the coupling portion is designed and arranged to be detachably mechanically and fluidically connected to the external connecting sleeve (3) of the suction unit (6) according to any one of the preceding claims 1 to 9.

11. The medical device (100) according to claim 10, characterized in that A latching body (120) is arranged on the inner circumference of the coupling portion (102), which can be moved radially into the groove (4) by an axially movable actuating sleeve (110).

12. The medical device (100) according to claim 10 or 11, characterized in that A socket (104) is arranged on the medical device (100), onto which the coupling (102) can be plugged.

13. The medical device (100) according to claim 12, characterized in that The medical device (100) also has a sensor system which is operatively connected to the socket (104) and is designed and arranged to detect a plugged-in coupling (102).

14. The medical device (100) according to claim 10, characterized in that The medical device (100) has a placement surface (101) for a container.

15. A medical assembly comprising a medical device (100) according to any one of claims 10 to 14 and a container, wherein: The medical device (100) and the container are mechanically and fluidically detachably connected to one another by means of a suction unit (6) according to any one of claims 1 to 9.

Images