WO2021089689A1

WO2021089689A1 - Bag holder, system, and method for emptying an effluent bag

Info

Publication number: WO2021089689A1
Application number: PCT/EP2020/081109
Authority: WO
Inventors: Christian Schlaeper; Juergen Klewinghaus; Goekhan Oerter
Original assignee: Fresenius Medical Care Deutschland Gmbh
Priority date: 2019-11-06
Filing date: 2020-11-05
Publication date: 2021-05-14
Also published as: DE102019129934A1

Abstract

The present invention relates to a bag holder (1000) for receiving an effluent bag (400), said bag holder comprising at least one of the following features: A holding device (1001) having one or more hooks for holding the effluent bag (400) on or in the bag holder (1000), and/or a channel-shaped receptacle suitable for receiving the effluent bag (400) or a portion thereof, and/or a mounting portion (1005) which is designed for mounting the bag holder (1000) on a flat surface, and/or one or more rollers or wheels for rolling the bag holder (1000), and/or a pump portion (2300) for delivering effluent from the effluent bag (400) received in or on the bag holder (1000). The invention also relates to a system and to a method for emptying an effluent bag (400).

Description

description

BAG HOLDER, SYSTEM AND METHOD FOR EMPTYING AN EFFLUENT BAG

The present invention relates to a bag holder according to claim 1 and a system according to claim 7. It also relates to a method for emptying an effluent bag according to claim 9 or according to the preambles or generic terms of these claims.

Extracorporeal blood treatment is known from practice. In this case, blood is taken from the patient, which is transported extracorporeally and z. B. is passed through a blood filter. The blood filter has a blood chamber through which blood is passed and a dialysis fluid chamber through which

Dialysis fluid is performed on. Both chambers are separated from each other by a semi-permeable membrane. Blood and dialysis fluid are mostly passed through the blood filter using the counterflow principle. The blood is cleaned in the blood filter, the dialysis fluid is considered to be used up when it emerges from the blood filter and, now referred to as dialysate, is discarded. In addition to the dialysate, the fluid to be discarded also includes filtrate, which includes water that has been withdrawn from the blood in the blood filter. In the following, the filtrate and dialysate are referred to individually or collectively as effluent.

In practice, the effluent is immediately discarded by means of an effluent drain line or, especially in acute treatment, fed to an effluent bag and initially stored there. After the Blood treatment, or at bag empty intervals (intervals in which the effluent bag is emptied) during the blood treatment, the effluent from the effluent bag, which is held over a sink or a sink, is discarded into this or these.

An object of the present invention can be seen in specifying a bag holder and a system with a bag holder according to the invention.

Furthermore, a method for emptying effluent bags that can be carried out with the above-mentioned system is to be specified.

The object according to the invention is achieved by a bag holder with the features of claim 1 and by a system with the features of claim 7. In addition, it is achieved by a method having the features of claim 9.

All the advantages that can be achieved with the method according to the invention can also be achieved undiminished in certain embodiments according to the invention with the devices according to the invention and vice versa.

The present invention relates to a bag holder. The bag holder can alternatively be a stand. It is used to hold an effluent bag. The effluent bag in turn serves to receive the effluent that occurs during a blood treatment by means of a blood treatment device and has at least one closable effluent outlet opening or a connection between an interior and an exterior of the effluent bag. The bag holder optionally has at least one of the following features in any combination:

- A holding device with one or more hooks, for example four, to be held in the eyelets of the

To intervene in the effluent bag. The holding device is provided for holding the effluent bag on or in the bag holder. It can optionally be designed to hold the effluent bag hanging. The latter can offer the advantage that the effluent present in the effluent bag converges in its bottom area and can be removed there centrally from the effluent bag by means of only one access to the inside of the bag;

- a, preferably channel-shaped, receptacle which is suitable for receiving the effluent bag or a section thereof. The receptacle can, in particular by designing its optional channel shape, optionally be designed to hold the effluent bag in a storage in which the effluent present in the effluent bag converges in its bottom area and collected there can be removed from the effluent bag by means of only one access to the interior of the bag;

- A set-up section, which is provided for setting up the bag holder on a surface, preferably a flat surface, for example on the floor;

one or more rollers, or one or more wheels, for moving the bag holder by rolling; - a recording, e.g. B. for a pump section and / or a pump section for conveying effluent out of the effluent bag received in or on the bag holder; and or

- At least one effluent drain line for guiding effluent out of the effluent bag.

The system according to the invention for treating the blood of a patient by means of dialysis and / or filtration has at least one blood treatment device and at least one bag holder according to the invention. In this case, the blood treatment device and the bag holder are separate from one another, in particular during the treatment of the patient by means of the blood treatment device and / or during the emptying of the effluent bag. The system also includes one or more effluent bags.

The expression “separated from one another”, as used here, can encompass both a spatial and a physical separation. Optionally, no electrically conductive sections, which would electrically connect the bag holder and blood treatment device, and / or no connecting devices are provided could serve to connect any sections of the bag holder to sections of the blood treatment device.

The method according to the invention for emptying an effluent bag which has been filled with effluent during a blood treatment of a patient comprises at least the following steps, unless they are optional: a. Providing a bag holder according to the invention or a system according to the invention; b. optional: triggering a bag change interval, ie a period of time for changing and / or emptying the

Effluent bag during which blood treatment is interrupted. Such a triggering can take place either through the control of the blood treatment device and / or, in particular manually, through the clinic staff; c. optional: (preferably manual) disconnecting the

Effluent supply line downstream of the dialyzer and upstream of a connector pair for separating the effluent bag from the effluent supply line by means of a first hose clamp; d. optional: manual clamping of the effluent inlet line upstream of the effluent bag and downstream of the connector pair for separating the effluent bag from the effluent inlet line by means of a second hose clamp; e. optional: manual separation of the connector halves for separating the effluent bag from the blood treatment device; f. optional: manual removal of the effluent bag; G. Arranging an effluent bag at least partially filled with effluent on, in or on the bag holder. The effluent bag has a

Effluent outlet and optionally a shut-off element for temporarily closing the effluent outlet opening; H. optional: manual attachment of a new, empty effluent bag to the blood treatment device, in particular to the weighing hook of the blood treatment device; i. optional: manual connection of the connector pair in the effluent inlet line and subsequent manual opening of the clamps upstream and downstream of the connector pair (first and second hose clamps) for connecting the new effluent bag to the blood treatment device; j. optional: ending the bag change interval by controlling the blood treatment device and / or, in particular manually, by the clinic staff, and resuming the treatment; k. Connecting the effluent outlet opening of the effluent bag to the effluent drain line of the bag holder for guiding effluent out of the effluent bag in such a way that a fluid connection between the interior of the effluent bag and the interior of the

Effluent drainage line can or is established by opening the optional shut-off element; and l. optional: manual opening of the shut-off element; m. pumping the effluent bag empty while it is arranged on, in or on the bag holder; n. manual unhooking of the emptied effluent bag.

Embodiments according to the invention can have some, some or all of the following features in any combination, unless this is technically impossible for the person skilled in the art to recognize. Advantageous further developments of the present invention are each also the subject matter of the subclaims.

In all of the above or following statements, the use of the expression “may be” or “may have” etc. is to be understood as synonymous with “is preferably” or “preferably” etc. and is intended to explain embodiments according to the invention.

Whenever numerical words are mentioned here, the person skilled in the art understands them to indicate a numerically lower limit. If this does not lead to a contradiction that is recognizable to the person skilled in the art, the person skilled in the art therefore always reads “at least one” or “at least one” with the statement “a” or “an”. This understanding is also encompassed by the present invention, as is the interpretation that a numerical word such as "a" can alternatively be meant as "exactly one", wherever this is technically possible for the person skilled in the art. Both are encompassed by the present invention and apply to all numerical words used herein.

If an embodiment is mentioned herein, this represents an exemplary embodiment according to the invention. In some embodiments, the pump section of the bag holder according to the invention is disposable, a disposable or single-use article.

In some embodiments, the pump section includes an impeller or pump rotor.

In some embodiments, the effluent discharge line is in delivery connection with the pump section.

In some embodiments, the pump section, or a section thereof, for example a pump head, is connected to a further section of the bag holder, e.g. B. with its main body, releasably locked. Detachable latching devices can comprise clamping, clip and / or hook / eye connections.

In some embodiments, the pump section is connected to, or can be connected to, a pump drive that can optionally be detached therefrom.

In some embodiments, the pump section or the pump drive comprises a rechargeable voltage source, e.g. B. a battery.

In some embodiments of the system according to the invention, the blood treatment device is as

Hemodialysis device, hemofiltration device or hemodiafiltration device, in particular designed as a device for acute, chronic renal replacement therapy or for continuous renal replacement therapy (CRRT = continuous renal replacement therapy). In some embodiments of the method according to the invention, the effluent is conveyed out of the effluent bag by means of the pump section.

In some embodiments of the method, the shut-off element is opened manually.

In some embodiments of the method, after the effluent bag has been completely or partially emptied, for example by means of the pump section as set out above, it is separated from the bag holder and disposed of without further medical use.

In some embodiments, the effluent bag comprises precisely one effluent opening which serves both as an effluent inlet opening and as an effluent outlet opening. It can be the only liquid opening in the effluent bag, it can be the only opening at all in the effluent bag. In some embodiments, the effluent bag additionally has a vent opening.

In some embodiments, the effluent bag is connected and / or connectable to only one tube section, connector or only one line.

In some embodiments, the effluent bag can be any type of container, for example a container with a flexible outer skin such as a film, or made of film, a container with a hard outer skin, or a hard outer skin such as a canister, etc.

Suitable, optional hose connectors or connector pairs can be used to connect the effluent drainage line to the Make effluent bags easier. The same optionally also applies to connectors present on a pouring line for connecting the same to the pump section on the one hand and / or a spout on the other hand.

Suitable, optional holders can be provided. You can hold e.g. B. facilitate the free ends or other sections of the effluent drain line and / or the pouring line on the bag holder according to the invention.

In some embodiments, the erecting section, which is used to erect the bag holder on the floor, has a longitudinal extension and a transverse extension perpendicular thereto. The direction of its longitudinal extent and the direction of its transverse extent together define a main plane of extent of the installation section. Its maximum longitudinal extension and its maximum transverse extension in the main extension plane determine the installation section.

In a plan view of the set up bag holder, the circumference of its set-up section or the circumference of the surface (e.g. a rectangle) encompassed by its longitudinal extension and its transverse extension describes the surface on / over which the bag holder stands.

A support section extends from the set-up section or its main plane of extent - in the state of use upwards or from the floor or its set-up area (that is, that area on which the bag holder stands).

The support section can extend from the installation section or its main plane of extension perpendicularly or at an angle between 70 ° and 90 °. The holding device can extend from the support section and / or be part of it.

The holding device can - in whole or in part - z. B. be arranged on the support section.

When the bag holder is upright, the holding device can - wholly or partially - be arranged over a central area of the dividing surface. This can increase the stability of the bag holder against falling over when the effluent bag is picked up by the bag holder.

In some embodiments of the system according to the invention, exactly two or at least two effluent bags are optionally provided per bag holder.

In some embodiments, the pump section is magnetically supported or driven and in particular has the pump head. This pump head is designed, for example, as an impeller pump head or as its rotor.

This type of storage or drive is used to protect the patient from an electric shock.

In some embodiments, the pump drive is manually connected to the pump section that includes the pump head.

In certain embodiments, the

Blood treatment device as a hemodialysis device, hemofiltration device or as

Designed hemodiafiltration device, in particular as a device for chronic kidney replacement therapy or for continuous renal replacement therapy (CRRT).

In some embodiments, the pump drive is optionally designed with a magnet section, e.g. B. designed as coils with an iron core. This serves for the magnetic coupling and / or magnetic driving of components, in particular a magnetically driven pump rotor. The drive is preferably contactless.

In some embodiments, an induction charging station for charging the battery of the pump drive is included in the blood treatment system. The induction charging station optionally has control electronics that are configured to ensure that the pump drive rests on the

Detect induction charging station and charge the battery.

The induction charging station can be or have a platform or installation level for the pump drive.

The present invention relates to a bag holder which optionally has at least one pump section with a pump rotor. The pump section is intended to be operatively connected or brought together with a pump drive. In some embodiments, the pump section, and optionally also all other sections of the bag holder, have no device (s) for connecting the pump section to the pump drive, apart from an optional magnetic connection and / or use of gravity, in particular no device for clamping, latching and /or similar. In some embodiments, the pump drive has an induction charging coil for charging the voltage source or the battery.

In some embodiments, the housing of the pump drive has a pump drive installation section for positioning the pump drive on a pump drive installation surface.

In some embodiments, the housing of the pump drive has a connection section for, in particular functional, connection of the pump drive to the pump section, which contains a pump rotor. The connecting section can be a cavity, one or more openings, one or more blind openings or the like.

In some embodiments, the pump drive erecting section and the connecting section are located at opposite ends of the housing of the pump drive or are assigned to them.

In some embodiments, the pump drive has at least one, in particular colored, lighting device. This can in particular be designed as a ring, in particular as an LED or LED colored ring.

The lighting device can in particular be positioned in or on the housing of the pump drive.

In some embodiments, the control electronics of the pump drive are designed with or connected to a wireless module. In some embodiments, the control electronics are designed or connected to at least one motion sensor.

In some embodiments, the control electronics are configured to switch off the lighting device when or after the state of full charge of the voltage source or the rechargeable battery has been reached.

In some embodiments, the preferred nominal electrical power is between 25 and 40 watts (W), in particular 30 to 35 W, very particularly 32 W.

In some embodiments, the operating voltage of the electric drive of the pump is 24 V.

In some embodiments, the pump section has a device for releasably fastening it to a section of the bag holder, in particular for releasably fastening it to the erecting section of the bag holder.

In some embodiments, the device for releasably fastening the pump section is a clamping device or a latching or clip device or has such a device.

In some embodiments, the device for releasably securing the pump section, which is optionally a clamping device or a latching or clip device, has a curved course.

The curved course can have the shape of a half-channel curved along its longitudinal extension. In some embodiments, the pump drive, the pump section and / or another component of the pump does not have any mechanical connecting device for connecting the pump drive to the pump section, except for the installation surface of the pump section on which the pump drive is installed to achieve the functional pump.

One advantage that can be achieved in this way is that the pump drive can simply be withdrawn or lifted off at any time (even while the pumping process is running). This can be done in particular with one hand, in particular if no mechanical connecting devices have to be opened beforehand, since the latter are not provided in these embodiments.

In some embodiments, the pump section is connected with its liquid inlet or fluid inlet to a hose section which leads from an effluent bag to the pump.

In some embodiments, the pump section is connected with its liquid outlet or fluid outlet to the pouring line, which can lead to a drain, pouring basin or pouring out for discarding the effluent.

In some embodiments, the pump rotor is magnetically supported and / or magnetically driven.

The magnet section of the pump rotor can be a permanent magnet. In some embodiments, the storage capacity of the battery of the pump drive is between 800 mAh and 1800 mAh, preferably between 1000 mAh and 1500 mAh, very particularly preferably around or exactly 1100 mAh.

In some embodiments, the fluid inlet of the pump section is in fluid communication with an effluent bag by means of tubing.

In some embodiments, the effluent drain line has at least one check valve, e.g. B. upstream of the pump drive. When the effluent bag is uncoupled, the non-return valve can advantageously prevent unwanted leakage of effluent from the effluent drain line, which benefits cleanliness and hygiene.

In some embodiments, the

Effluent drain line at least one pair of connectors. Such connector pairs are optional. They can advantageously serve to simplify the connection of the effluent drain line with the effluent bag.

In some embodiments it can be provided that the pump starts automatically when the effluent drainage line is or is connected to the effluent bag. Additionally or alternatively, z. B. stop the pump automatically if the effluent drain line is or will be disconnected from the effluent bag. The sensors, devices, etc. required for this purpose can be provided.

The effluent drain line can be disposable. In some embodiments, the effluent drainage line, which connects downstream of the effluent bag, upstream and / or downstream of the pump section of the bag holder does not have any element that would be connected to an electrical control device, for example in the form of an electrically connected connector. The pump or the pump section are optionally excluded from this; they can be electrically connected. Optionally, however, they are also not electrical with z. B. connected to a control device.

In some embodiments, when the effluent inlet line is disconnected from the blood treatment device (steps c. To e.), Clamps, if provided, can be closed in order to prevent undesired escape of effluent from the blood treatment device.

In some embodiments, the pump is configured in such a way, for example as an impeller pump, that it can empty the effluent bag filled with ten liters of effluent at a high flow rate in around five minutes or less, preferably in around two minutes.

In some embodiments, the bag holder is not a blood treatment device, has no pump for fresh dialysis fluid, no source of fresh dialysis fluid, no blood pump and / or no blood filter or holder or connections therefor.

In some embodiments, the roles of the bag holder carry the weight of a blood treatment device, a pump for fresh dialysis fluid, a source of fresh dialysis fluid, a blood pump and / or a blood filter or holder or connections for this, not even partially.

Some or all of the embodiments according to the invention can have one, more or all of the advantages mentioned above and / or below.

One advantage of the present invention can be that the effluent bag is no longer used by hospital staff to a spout, e.g. B. a sink, a toilet, a drain, etc. must be carried. Since full effluent bags usually weigh around 10 kg, the clinical staff is considerably relieved of this work if the mobile, separately usable bag holder z. B. is placed directly next to the blood treatment device, and the effluent bag to be emptied can be placed on it in the immediate vicinity of the blood treatment device.

By arranging the effluent bag on the bag holder according to the invention and thus with the appropriate positioning of the bag holder at a sufficient distance from places which may be hygienically questionable, e.g. B. a wash basin, a toilet or a sink, can advantageously, unlike conventional methods, hygiene problems (which in the worst case could lead to back contamination) can be avoided.

Conventional systems and devices for emptying the effluent bag are sometimes very complex and are also subject to approval as a medical device. Some of these systems require e.g. B. a changed machine hardware Dialysis machine, especially special weighing systems. Such changes to the hardware of the blood treatment device can be associated with high expenditure of time and money for the new approval of the changed machine. For this reason, retrofitting existing blood treatment devices is often not justifiable. As a result of the present invention, a system for emptying effluent bags can now be made available in a cost-effective and simple manner, which system does not require any new approval as a medical device. Rather, it allows existing

Blood treatment devices can be easily supplemented by using the bag holder according to the invention, for. B. positioned in the vicinity of the blood treatment device but without contact with it. Effluent bags known from the market can advantageously also continue to be used together with the bag holder according to the invention.

The present invention advantageously further avoids the risk of electrical contact occurring between the liquid and the earth when the contents of the effluent bag are drained, so that the permissible patient leakage currents would be exceeded, since the bag holder itself does not have to be connected to a power supply. There is no risk of electrical accidents or voltage damage for the patient from using the battery-operated pump.

A further advantage of the present invention can consist in the fact that work processes on the blood treatment device can be optimized through its use. Since the emptying of the full effluent bag takes place without any connection to the blood treatment device and the emptying of the effluent bag takes place spatially and temporally from the Resumption of treatment at the end of the bag change is independent, the "parked" on the bag holder

Effluent bag z. B. can only be pumped empty as soon as the patient's workflows allow it.

In the following, the present invention is described purely by way of example with reference to the accompanying drawings. In it, the same reference symbols denote the same or the same components. The following applies in the figures:

Fig. 1 shows a simplified representation of a process flow diagram

Blood treatment device of a system according to the invention with an extracorporeal blood circuit; Fig. 2 shows a bag holder according to the invention in a first embodiment;

3a shows a bag holder according to the invention in a second embodiment;

FIG. 3b shows the embodiment of FIG. 3a with an arranged effluent bag and a pump section with pump drive and effluent drain line;

4a shows a bag holder according to the invention in a third embodiment;

FIG. 4b shows the embodiment of FIG. 4a with an arranged effluent bag and a pump section with a pump drive; Fig. 5 shows a simplified, schematic illustration of a pump drive (above) and a pump section (below), which together result in a pump, in a possible embodiment in a partial sectional illustration; and

Fig. 6 shows an illustration of an embodiment of the system according to the invention.

Fig. 1 shows, in a greatly simplified representation, a process flow diagram of a process according to the invention

Blood treatment device 100, optionally connected to an extracorporeal blood circuit 300 and a drainage hose system to form an effluent bag 400. The extracorporeal blood circuit 300 has a first line 301, here in the form of an arterial line section.

The first line 301 is in fluid connection with a blood treatment device, here by way of example a blood filter or dialyzer 303. The blood filter 303 has a dialysis fluid chamber 303a and a blood chamber 303b, which are separated from one another by a mostly semi-permeable membrane 303c.

The extracorporeal blood circuit 300 also has at least one second line 305, here in the form of a venous line section. Both the first line 301 and the second line 305 can serve to connect them to the vascular system of the patient (not shown). The first line 301 is optionally connected to a (first) hose clamp 302 for blocking or closing the line 301. The second line 305 is optionally connected to a (second) hose clamp 306 for blocking or closing the line 305.

The blood treatment device 100, which is represented schematically only by a few of its devices and in FIG. 1, has a blood pump 101. During the treatment of the patient, the blood pump 101 conveys blood through sections of the extracorporeal blood circuit 300 and in the direction of the blood filter or dialyzer 303, as indicated by the small arrowheads which generally indicate the direction of flow in each of the figures.

By means of a pump for dialysis fluid 121, which can be designed as a roller pump or as another occluding pump, fresh dialysis fluid is drawn from a source 200 along the

Dialysis fluid supply line 104 is pumped into the dialysis fluid chamber 303a. The dialysis fluid leaves the

Dialysis fluid chamber 303a as dialysate, optionally enriched with filtrate, in the direction of the

Effluent pouch 400 and is referred to herein as effluent.

The source 200 can be, for example, a bag or a container. The source 200 may also be a fluid conduit from which on-line and / or continuously generated or mixed liquid is provided, e.g. B. a hydraulic outlet or connection of the blood treatment device 100. A further source 201 with a substituate can optionally be provided. It can correspond to the source 200 or be a separate source.

A control or regulating device 150, which is only indicated, can be configured to regulate or control the blood treatment device 100.

At the bottom right in FIG. 1 it is indicated where the effluent bag 400 is connected to the blood treatment device 100. A bag holder 1000, an effluent bag 400 and their connection are only shown in the following figures.

In addition to the aforementioned blood pump 101, the arrangement shown in FIG. 1 furthermore optionally has a number of further, each optional pumps, namely the pump 111 for substituate, the pump 121 for dialysis fluid and the pump 131 for the effluent.

The pump 121 is provided in order to supply dialysis fluid from a source 200, for example a bag, and via an optionally available bag heater H2 with a heating bag to the blood filter 303 by means of the dialysis fluid supply line 104.

The dialysis fluid supplied in this way emerges from the blood filter 303 again via a dialysate drain line 102, supported by the optional pump 131, and can be discarded. An optional arterial sensor PSI is provided upstream of the blood pump 101. While the patient is being treated, it measures the pressure in the arterial line.

A further, optional pressure sensor PS2 is provided downstream of the blood pump 101, but upstream of the blood filter 303 and, if provided, upstream of an addition point 25 for heparin. It measures the pressure upstream of the blood filter 303 (“pre-hemofilter”).

Yet another pressure sensor can be provided as PS4 downstream of the blood filter 303, but preferably upstream of the pump 131, in the dialysate drain line 102 for measuring the filtrate pressure of the blood filter 303.

Blood leaving the blood filter 303 flows through an optional venous blood chamber 29, which can have a venting device 31 and / or a further pressure sensor PS3.

The control or regulating device 150 shown in FIG. 1 can be in wired or wireless signal connection with any of the components mentioned herein - at least or in particular with the blood pump 101 - for controlling or regulating the blood treatment device 100.

The optional pump 111 is provided in order to supply substituate from the optional source 201, for example a bag, and to the second line 305 via an optionally available bag heater H1 with a heating bag.

Fig. 2 shows a bag holder 1000 according to the invention in a first embodiment which, as in FIG recognize is separate from one

Blood treatment device 100 is present (see also the comments on FIG. 6 in this regard).

The bag holder 1000 comprises a holding device 1001, here optionally with four hooks. The hooks are provided in order to engage in eyelets 425 of an effluent bag 400 (see FIG. 3 b) in order to hang the latter on the bag holder 1000. The effluent bag 400 is not shown in this figure.

A set-up section 1005 can also be clearly seen, which here optionally consists of a frame made of, for. B. four struts, sheets or profiles (z. B. made of metal) consists or has these that span a rectangle in the plane that is defined by the vectors x and y (also the main extension plane). The installation section 1005 is set up here on a floor as an installation area by way of example. According to the invention, the bag holder 1000 can be suitable for being set up on any flat surface.

The main extension plane of the installation section 1005 can extend directly on the installation surface or parallel to it.

The installation section 1005 can optionally include feet (see FIGS. 4a and 4b) and / or rollers or wheels. The optional rollers or wheels are advantageously suitable for moving the bag holder 1000, but preferably not also the blood treatment device (see reference numeral 100, for example in FIG. 6), on or over the dividing surface without effort. You can, for example, at the corners of the installation section 1005, similar to a trolley case, be arranged. This can be particularly advantageous if there is no spout in the room in which the blood treatment device is used, e.g. B. in the form of a drain or a sink, is available.

A receptacle for detachably receiving a pump section 2300 is configured on the installation section 1005. In this embodiment (not visible here) the pump section 2300 contains a pump rotor 2301, see FIG. 5. The pump section 2300 is present here separately from the pump drive 2100, that is to say unassembled. The pump drive 2100 is located on the left next to the bag holder 1000 in FIG. 2 on a preferably inductive charger 2150.

An effluent drainage line 403 contains at one of its ends a connector designed for its connection to the effluent bag 400. Its other end is connected to the pump section 2300, which in turn is connected on the pressure side or downstream to a drainage line 407 in order to allow the effluent bag 400 to pass through it e.g. . B. to empty into a sink.

The size ratio of the installation section to

For reasons of tilt security, the holding device 1001 is selected here in such a way that the filled effluent bag 400 has its center of gravity in a projection from above in a central area of the area encompassed or circumscribed by the installation section 1005.

In the present embodiment, the angle between the erecting portion 1005 and a

Support section 1007, which holds the hooks of the holding device 1001 carries, optionally 90 °. This is purely exemplary. Smaller angles are also covered by the present invention.

Fig. 3a shows the bag holder 1000 according to the invention in a second embodiment, in which the set-up section 1005 optionally consists of three legs or webs or has these, which are optionally arranged in the main plane of extension of the set-up section 1005 at a 90 ° angle to the respective adjacent limb or web.

The (optionally two) support sections 1007, which here result in a bow-shaped or U-shape, extend, for example, at an angle of less than 90 ° from the main plane of extent, ie. H. they incline in the direction of the longitudinal direction of the short side of the erecting section 1005 over the erecting section 1005. The holding device 1001 with here optionally four hooks can be clearly seen.

A receptacle 2407 for receiving the device 2303 (see FIG. 5) for releasably attaching the pump section 2300 to the bag holder 1000 can be seen adjacent to the installation section 1005.

Fig. 3b shows the bag holder 1000 from FIG. 3a with an effluent bag 400 arranged thereon. The eyelets 425 of the effluent bag 400, into which the hooks of the holding device 1001 engage and thus hold it securely hanging on the bag holder 1000, can be clearly seen in this figure.

Furthermore, the pump section 2300 with the pump drive 2100 attached can be seen on the installation section 1005. The suction side extends from the pump section 2300 Effluent drain line 403 with an optional connector at its free end, designed and provided for its connection to the effluent outlet opening 400a of the effluent bag 400, according to the above-described method according to the invention.

Fig. 4a shows the bag holder 1000 according to the invention in a third embodiment in which the

Stand-up section 1005 consists of or comprises a channel-shaped receptacle 1003 which, together with (here by way of example four) optional feet and optionally the receptacle 2407 for the pump section 2300, here exemplarily forms the stand-up section 1005. The upwardly extending walls 1009 of the channel-shaped receptacle 1003 are arranged, for example, at an angle not equal to 90 ° with respect to the horizontal and act here as lateral support sections for the effluent bag 400 (see FIG. 4b). They (one or both) are inclined outwards in relation to the channel-shaped receptacle.

Fig. 4b shows the bag holder 1000 from FIG. 4a with an effluent bag 400 arranged therein.

Since the effluent bag 400 rests in the channel-shaped receptacle 1003 in this embodiment, no further holding device 1001, which, for example, would have hooks, is required to hold the effluent bag 400.

FIG. 4b shows the pump section 2300 with the pump drive 2100 attached. The hose lines 403 and 407 are not shown in FIG. 4b. Fig. 5 shows, in a greatly simplified, schematic representation, an embodiment of the medical pump drive 2100 of a pump 2405 with a pump housing 2101. In the pump housing 2101 are a pump motor 2103, a rechargeable voltage source or a battery 2105, a magnet section 2107 for, in particular contactless, driving a pump rotor 2301 , a control or regulating electronics unit 2111 for controlling or regulating the charging of the battery and other functions of the pump drive 2100 and an induction charging coil 2113 for charging the battery 2105 by means of induction. The pump housing 2101 can be in one piece or in several pieces.

The pump housing 2101, which is cylindrical in shape here purely by way of example, has at one of its ends or end regions (in FIG. 5 at the upper end of the

Pump housing 2101) has a stand-up section 2115 in the form of an optionally flat surface. By means of the installation section 2115, the pump drive 2100 (with reference to its representation in FIG. 5) can be installed turned upside down, so to speak, for example for installation on an induction charging station. For obvious reasons, the induction charging coil 2113 is comparatively close to the installation section 2115, and optionally even physically lies against it.

The pump housing 2101 also has a

Connecting section 2117, which serves to connect the pump housing 2100 shown at the top in FIG. 5 to the pump section 2300 shown at the bottom in FIG. 5.

In the embodiments shown here and in other embodiments, a connection is a bringing together of pump drive 2100, which has the pump motor 2103 for a pump rotor 2301, and pump section 2300 which has the pump rotor 2301 to be understood. The connection is to be understood here as bringing together in such a way that the functional pump 2405 arises as a result.

In some embodiments, the connection does not include any mechanical fixing of the pump housing 2101 or the pump drive 2100 to the pump section 2300.

In some embodiments, the connection does not include mechanical means for holding the

Pump drive 2100, on the pump section 2300, in particular no claws or claws, several of which could be distributed around the circumference. Also, these embodiments do not include, for. B. horizontal, plates or protrusions that would be incorporated into other elements, such as claws or clamps, to make a connection.

In the example in FIG. 5, as in other, arbitrary embodiments, the pump drive 2100 is held on the pump section 2300 or the loading platform of the charger 2150 by means of gravity, possibly supported by magnetic attraction between the pump drive 2100 and the pump section 2300.

Lateral slipping of the pump drive 2100 with respect to the pump section 2300, or vice versa, can be prevented in a simple manner in that the connecting section 2117 is designed as a cavity or a bag opening, as in the example in FIG. 5, into which an elevation 2311 of the pump section 2300 can be plugged in, in particular by a simple movement in the Connection direction, which is shown in Fig. 5 with a double arrow, and which is not preceded or followed by fastening, for example by means of a lever, by rotating the pump drive 2100 relative to the pump section 2300 for mutual locking of these two components, etc. Alternatively or additionally, anti-slip devices can be provided, for example in the form of edges, hooks, engagement pins, etc., which, in order to come into engagement, preferably each require no actuation and / or no manipulation by the user.

As can be seen in the indicated sectional illustration in FIG. 5, the magnet section 2107 is optionally mounted within the pump housing 2101 so as to be rotatable around the connecting section 2117.

As can also be seen in the indicated sectional illustration in FIG. 5, the pump rotor 2301 is preferably rotatably supported within the elevation 2311.

The pump housing 2101 also optionally has at least one lighting device 2119 that is visible from outside the pump housing 2101. It can be controlled by means of the control electronics 2111 in order to signal states or functions of the pump drive 2100 or its components for the user of the pump drive 2100 or the pump 2405 by means of light.

The lighting device 2119 can be a ring, in particular with one or more LEDs, or an LED colored ring.

For this purpose, too, the pump drive 2100 can have a wireless module for data or signal transmission. Such a transfer can take place on an external device 2500. By means of a display 2501 of the external device 2500, information relating to the pump drive 2100 or the pump 2405 can be transmitted to the user, for example indicating the mode, the charge status of the battery, etc.

The pump drive 2100 can optionally also have a movement sensor 2123, which provides information on whether or that the pump drive 2100 has been moved. Such a movement can cause the control electronics 2111 to change from a first state (for example a power-saving sleep mode) to a second state (for example an awake mode in which the lighting device 2119 is activated, switched over or switched on).

The pump section 2300, which has the pump rotor 2301, can have a device for releasably attaching the pump section 2300 to a section of the bag holder 1000 according to the invention. See also the embodiments of FIGS. 2 to 4b and 6 in this regard.

The device for releasable fastening can be a clip device 2303, which is in one or more parts.

The pump section 2300 can be part of a disposable.

This disposable can also have hose sections of the effluent drainage line 403 or be connected to it, of which only a fluid inlet 2305 and a fluid outlet 2307 or their connectors are shown by way of example, by means of which liquid to be pumped flows into a housing 2309 of the pump section 2300 or out of it . Fig. 5 shows the pump drive 2100 and the

Pump section 2300 shortly before they are connected to the pump 2405. If they are connected to the pump 2405, they retain their alignment in a position of use of the pump 2405 insofar as the connection section 2117 represents the lower end of the pump drive 2100 and the elevation 2311 the upper end of the Pump section 2300. Expressed in general terms, the pump drive 2100 is placed from above onto the pump section 2300 for its connection to a pump 2405, not vice versa. Even when the pump 2405 is in use, the pump drive 2100 is on top and the pump section 2300 is on the bottom. After the end of the use of the pump 2405, the pump drive 2100 is lifted upwards from the pump section 2300.

Typical use of the pump drive 2100 is described below.

If the pump drive 2100 is removed from the charger, which is not limited to induction charging, but can alternatively also make use of other methods, the (optional low-power) motion sensor 2123 detects activity and wakes up the control electronics 2111. As a result, the state of charge of the battery 2105 is optionally indicated by means of the colored ring 2119, e.g. B. in a first color displayed.

Alternatively or in addition, z. For example, a different color than the first indicates that motion has been detected.

To assemble the pump 2405 by placing the pump drive 2100 on the pump section 2300, the drive is rotated 180 ° around a horizontal. The pump drive cavity or the connecting section 2117 now points downwards and can accordingly be placed on the elevation 2311 of the pump section 2300, which contains the pump rotor 2301 and is oriented pointing upwards.

The pump rotor 2301, which has a magnet section 2301a, which would normally fall further down into the interior of the pump section 2300 due to gravity without the action and proximity of the pump drive 2100, becomes magnetic upwards from its iron armatures ("stators") when the pump drive 2100 approaches The pump drive 2100 is pulled downwards accordingly - noticeably for the user. The form-fitting parts seem to find each other independently and arrive in a very clearly defined position in the operating position of the pump 2405, in which it is functional.

The - already through the initial movement of the

Pump drive 2100 when it is lifted from the induction charging station - activated control electronics 2111, monitors and detects the magnet section 2301a introduced into the connecting section 2117, which can be a housing cavity. The detection can e.g. B. by means of optional Hall sensors 2125 or other devices) and automatically starts a stored program: the magnet section 2301a comes into a floating state due to the activation of the position control and the magnet section 2301a is accelerated to a defined speed (drive active).

The liquid in the effluent bag 400 arranged above the pump ensures that liquid is available in the pump head and that large quantities are immediately available Liquid can be promoted. The

Illuminating device 2119, here the colored ring, signals the pumping process with a (e.g. blue), optionally rotating colored ring or a circulating light.

A "colored ring" as used herein can be a ring of individual illuminants, such as a row of adjacent LEDs.

When the pump 2405 has emptied the fluid supply of the effluent bag 400 and sucks in air or generates a negative pressure (e.g. when the suction line collapses), the control electronics 2111 detects a change in the drive or bearing currents. The drive currents result from the power required to maintain the speed. If the resistance of the liquid changes (e.g. due to air bubbles, negative pressure, density), the drive current must be adapted in order to be able to keep the speed constant. This monitoring is used to initiate a "bag empty" detection: the maximum or preset speed is reduced. It can be advantageous to choose a speed that is just sufficient to prevent the liquid from flowing back. An equilibrium is thus established between the liquid pumped up and the liquid flowing down - following the force of gravity. This measure, for example, makes a non-return valve superfluous B. a blue, rotating colored ring (= pumping process) changes into a blue pulsating colored ring, which indicates the blocking function, which can have the function of a non-return valve). After the pumping process, the pump drive 2100 is rotated again by 180 ° and placed with its induction coil 2113 facing down on the induction charging station, that is to say the charger 2150. An optional, e.g. B. occasional, light signal of the lighting device or the colored ring 2119, the charging process is displayed. When the battery 2105 returns to z. B. 100% charged, the pump drive 2100 or its control electronics 2111 goes back to the first state, z. B. the LowPower mode.

The wireless interface 2121 can be configured to e.g. B. to transmit via Bluetooth protocol.

The transmission can e.g. B. to a recipient of the blood treatment device, whose display can show a corresponding display, or which can trigger another routine. The transmission can alternatively or additionally to an external device 2500, such as. B. a smartphone or other handheld device or mobile device.

The figure shows on the right-hand side the chassis of a blood treatment device 100 with an effluent bag 400 arranged above it, which would be filled with effluent during a treatment session.

The effluent bag 400 has an inlet opening 408, an outlet opening 409 and optionally a shut-off valve 410 or a differently configured locking device for the outlet opening 409. On the left-hand side, a bag holder 1000 according to the invention can be seen, on which, for example by clinical staff, the effluent bag 400 with its eyelets 425 can be placed on the hooks of the holding device 1001 for emptying it. The filled effluent bag 400 can be "parked" on the holding device 1001 until the work process of the staff allows it to be emptied by means of the effluent drainage line 403 and the pouring line 407 by means of the pump section 2300 and the pump drive 2100.

Another effluent bag 400 'can be seen at the bottom right in the figure. This is empty and serves to replace the full effluent bag 400 on the blood treatment device 100, which is still to be placed on the bag holder 1000 in a next step, so that the blood treatment can be continued.

List of reference symbols

25 addition point for heparin (optional)

29 venous blood chamber (optional)

31 Ventilation device

100 blood treatment device

101 blood pump

102 Dialysate drain line, effluent inlet line

104 dialysis fluid supply line

111 Pump for substituate

121 Pump for dialysis fluid

131 Pump for dialysate or effluent in effluent inlet line 150 Control or regulating device

200 source with dialysis fluid

201 Source with substituate, optional

300 extracorporeal blood circulation

301 first line (arterial line section

302 (first) hose clamp

303 blood filter or dialyzer 303a dialysis fluid chamber 303b blood chamber 303c semi-permeable membrane 305 second line (venous line section)

306 (second) hose clamp

400 effluent bags

400 'effluent bag

400a effluent inlet or outlet port;

Effluent opening 403 effluent drain line

407 discharge pipe

408 inlet port

409 exhaust port

410 shut-off element 425 eyelets

1000 bag holders

1001 holding device

1003 channel-shaped receptacle

1005 installation section 11

1007 support section

1009 wall

2100 medical pump drive, also:

Pump drive

2101 pump housing

2103 pump motor

2105 rechargeable voltage source or battery

2107 magnet section

2111 control electronics

2113 induction charging coil

2115 installation section 11

2117 connecting section

2119 lighting device

2121 wireless module or interface

2123 motion sensor

2125 Hall sensor

2150 charger

2300 pump section

2301 pump rotor

2301a magnet section 2303 clip device, device

2305 fluid inlet

2307 fluid outlet

2309 housing

2311 survey

2405 pump

2407 Receptacle for pump section 2500 external device

2501 display

H2 bag heating with heating bag

(Dialysis fluid) Hl bag heating with heating bag (substituate)

PSI, PS2 arterial pressure sensor (optional) PS3 pressure sensor (optional)

PS4 pressure sensor for measuring the filtrate pressure

Claims

Expectations

1. Bag holder (1000) to hold a

Effluent bag (400), which is used to hold the blood treatment by means of a

Blood treatment device (100) is used for accumulating effluents and has at least one closable effluent outlet opening (400a) or connection to an exterior of the effluent bag (400), the bag holder (1000) having at least one of the following features: a holding device (1001) for holding the effluent bag ( 400) on or in the bag holder (1000); a channel-shaped receptacle (1003) for receiving the effluent bag (400) or a portion thereof; a set-up section (1005) provided for setting up the bag holder (1000) on the floor; one or more rollers or wheels for rolling the bag holder (1000); a pump section (2300) for conveying effluent out of the effluent bag (400) received in or on the bag holder (1000); and at least one effluent drain line (403) for guiding effluent out of the effluent bag (400).

2. The bag holder (1000) according to claim 1, wherein the pump section (2300) is a disposable item, a disposable product and / or disposable.

3. The bag holder (1000) according to claim 2, wherein the pump section (2300) comprises an impeller or pump rotor (2301).

4. Bag holder (1000) according to one of the preceding claims, wherein the pump section (2300) or a section thereof is releasably latched to a further section of the bag holder (1000).

5. Bag holder (1000) according to one of the preceding claims, wherein the pump section (2300) is connected or can be connected to a pump drive (2100) which is detachable therefrom.

6. bag holder (1000) according to any one of the preceding claims, wherein the pump section (2300) or the pump drive (2100) is a rechargeable voltage source, e.g. B. has a battery.

7. A system for treating the blood of a patient by means of dialysis and / or filtration, comprising: at least one blood treatment device (100); at least one bag holder (1000) according to one of the preceding claims, wherein Blood treatment device (100) and

Bag holders (1000) are separate from one another; and one or more effluent bags (400).

8. System according to claim 7, wherein the blood treatment device (100) is designed as a hemodialysis device, hemofiltration device or hemodiafiltration device, in particular as a device for acute, chronic renal replacement therapy or for continuous renal replacement therapy (CRRT = continuous renal replacement therapy).

9. A method for emptying an effluent bag (400) filled with effluent during a blood treatment of a patient, with the steps:

Providing a bag holder (1000) according to one of claims 1 to 6 or a system according to one of claims 7 or 8;

Arranging an effluent bag (400) which is at least partially filled with effluent and which has a shut-off element for temporarily closing a

Having effluent outlet opening (400a) on or on the bag holder (1000);

Connecting the effluent outlet opening (400a) of the effluent bag (400) to the effluent drain line (403) of the bag holder (1000) for guiding effluent out of the effluent bag (400) in such a way that a fluid connection between the interior of the effluent bag (400) and the interior of the effluent drainage line (403) can be established by opening the shut-off element; and

Open the shut-off element.

10. The method according to claim 9, wherein the effluent is conveyed from the effluent bag (400) by means of the pump section (2300).

11. The method according to any one of claims 9 or 10, wherein the opening of the shut-off element takes place manually.

12. The method according to any one of claims 9 to 11, wherein the effluent bag (400) is separated from the bag holder (1000) after complete or partial emptying and disposed of without further medical use.