Medical treatment system with a connection device for the detachable attachment of peripheral components to a treatment device.

Abstract

Medical treatment system comprising a medical treatment device (10), a peripheral component (14) and a connecting device (12) for detachably attaching the peripheral component (14) to the treatment device (10), comprising a first connecting element (16) on the treatment device side and a second connecting element (18) complementary to it on the side of the peripheral component (14), wherein the first and the second connecting element (16, 18) can be force-fitted to each other on a coupling surface (20), characterized in that the first connecting element (16) has at least two magnetic elements (22) of opposite polarity along the coupling surface (20) and the second connecting element (18) has at least two magnetic elements (24) complementary to these.

Description

Technical field

[0001] The present invention relates to a medical treatment system with a connection device for detachably attaching peripheral components to a medical treatment device. The invention further relates to a medical treatment device used therein and a peripheral component used therein. State of the art

[0002] Treatment and analysis devices in medical or laboratory technology regularly employ external functional devices such as remote controls or other input devices. These are often held or attached to the treatment or analysis device during use. Functional devices such as blood pressure measuring devices are also known; these are decoupled from the treatment device during use but are attached to it for the analysis of information obtained during use or when not in use. Such components or functional devices that can be attached to an external surface of the treatment device, and which may also be optional components for the treatment device, are referred to here as peripheral components.

[0003] Holding devices are known from the prior art, such as from DE 10 2010 043 574 A1 or DE 10 2009 024 448 A1, which are designed for the detachable fastening of peripheral components to a treatment device. Such holding devices are usually designed for a specific peripheral component and are permanently connected to a housing of the treatment device, for example by means of a screw connection, an adhesive connection or a plug connection.

[0004] Further prior art is known from DE 10 2016 115 269 A1, which discloses a holding device for attaching a dialyzer to a dialysis machine. The holding device comprises a mounting base designed for connection to the dialysis machine.

[0005] Retrofitting or modifying the treatment device may necessitate mechanical modifications to its housing, such as replacing or drilling into housing components. Furthermore, the connection points between the holding device and the treatment device housing have edges that are particularly susceptible to dirt accumulation due to difficulties in cleaning and disinfection. This can be especially undesirable for treatment devices used in medical and laboratory technology. Description of the invention

[0006] Starting from the known state of the art, it is an object of the present invention to propose an improved connection device for the detachable fastening of peripheral components to a medical treatment device, which provides a flexible and for this application optimized mechanical interface between the treatment device and the peripheral component.

[0007] The problem is solved by a medical treatment system with a connecting device having the features of claim 1. Advantageous further developments are described in the dependent claims, the present description and the figures.

[0008] Accordingly, a medical treatment system is proposed comprising a medical treatment device, a peripheral component, and a connecting device, wherein the connecting device is configured for the detachable attachment of the peripheral component to the treatment device. The connecting device includes a first connecting element on the treatment device side and a second connecting element complementary to it on the peripheral component side, wherein the first and second connecting elements can be frictionally connected to one another at a coupling surface. The connecting device is characterized in that, for the purpose of establishing the frictional connection, the first connecting element has at least two magnetic elements of opposite polarity along the coupling surface, and the second connecting element has at least two magnetic elements complementary to these.

[0009] The proposed connection device utilizes a force-fit induced by magnetic attraction to couple a peripheral component to the treatment device. This enables simple and efficient attachment and detachment of peripheral components to the treatment device, particularly compared to screw, adhesive, and plug connections known from the prior art. Accordingly, medical treatment devices equipped with such a connection device can be easily modified and / or retrofitted, thereby increasing their configurability. In this way, a flexible mechanical interface is provided for attaching interchangeable peripheral components to a treatment device.

[0010] Peripheral components that can be attached to the treatment device and are designed differently depending on the desired application – for example, a remote control equipped with a screen or just a keyboard – each equipped with a component-side second magnetic connecting element, can be alternately attached to the (one) device-side magnetic connecting element.

[0011] The use of magnetic connectors has the effect that magnetic attraction forces can be transmitted without contact to ensure a secure connection. This allows the first and second connectors to be positioned within the treatment device or peripheral component. In other words, the connectors can be integrated within the components to be joined, eliminating the need for any edges in the coupling area. Integration can be achieved, for example, by incorporating the connector into an existing housing.

[0012] As a result, the housing of both the treatment device and the peripheral component can be designed to be smooth, even in the area of ​​the coupling surface, and therefore less susceptible to dirt accumulation. This is particularly advantageous for the use of the treatment device in medical and laboratory technology.

[0013] For example, the magnetic elements of the first connecting element can be arranged within a housing of the treatment device, particularly at a distance from an outer surface of the treatment device. Similarly, the magnetic elements of the second connecting element can be arranged within a housing of the peripheral component, particularly at a distance from an outer surface of the peripheral component. The outer surface of the treatment device housing can form the coupling surface of the first connecting element. Alternatively or additionally, the outer surface of the peripheral component housing can form the coupling surface of the second connecting element.

[0014] Furthermore, the coupling surface between the first and second connecting elements can be flat or curved. Such a design of the coupling surface ensures good accessibility of the entire coupling surface, thus facilitating the cleaning and disinfection of the connection device. By providing a curved coupling surface between the connecting elements, a positive-locking connection between the components can be provided in addition to the frictional connection. This contributes to a force-flow-optimized design of the connection device. In other words, a curved design of the coupling surface is suitable for resolving the conflicting objectives of providing a coupling surface that is easily accessible for cleaning and disinfection while simultaneously optimizing force flow.

[0015] As described above, the proposed connection device of the medical treatment device is characterized by the fact that the first connection element has at least two magnetic elements of opposite polarity along its coupling surface. Correspondingly, the second connection element has at least two magnetic elements complementary to those of the first connection element. In other words, the second connection element also has at least two magnetic elements of opposite polarity along its coupling surface. When the first and second connection elements are connected, they are preferably arranged such that their magnetic elements are aligned with each other. More precisely, in this state, oppositely polarized magnetic elements of the first and second connection elements are preferably positioned opposite each other on the coupling surface.

[0016] For example, the first connecting element can comprise a first magnetic element with a north pole facing the coupling surface and a second magnetic element with a south pole facing the coupling surface. Complementarily, the second connecting element can also comprise a first magnetic element with a north pole facing the coupling surface and a second magnetic element with a south pole facing the coupling surface. In the connected state of the first and second connecting elements, they can be arranged relative to each other such that magnetic elements of opposite poles face each other at the coupling surface and thus exert a magnetic attraction on one another.

[0017] The design and arrangement of the magnetic elements result in a defined relative orientation and / or position when the connecting elements are joined. This allows the connecting device to establish a coupling position between the connecting elements without requiring a positive-locking connection, such as complementary grooves and pins. In this case, the coupling position describes a relative position between the first and second connecting elements in which oppositely polarized magnetic elements of the first and second connecting elements face each other at the coupling surface.

[0018] By providing the oppositely polarized magnetic elements, a rotational alignment of the peripheral component relative to the treatment device can also be determined, whereby, depending on the pattern formed by the magnetic elements of the first and second connecting elements, more than one stable rotational alignment can be determined.

[0019] If it is intended to alternately attach more than one peripheral component to the device-side connecting element, the device-side connecting element can also have magnetic elements in a higher-order pattern, and the different peripheral components can each have magnetic components with different sub-patterns, so that the different peripheral components can be arranged in different orientations.

[0020] In other words, the connecting device is preferably designed such that the magnetic elements define or encode at least one relative coupling position between the first connecting element and the second connecting element. In the present context, "encoding" of the connecting device is understood to mean at least one coupling position defined by the connecting device in which a relative position and orientation of the connecting elements, and thus also the relative position of the respective peripheral components to the treatment device, is defined.

[0021] The connecting device is preferably designed such that, in the defined, i.e., coded, coupling position, a sufficiently large holding force is provided to maintain the force-fit connection, while at the same time ensuring easy release of the connecting elements. This is achieved by equipping the connecting elements in the proposed connecting device with complementary magnetic elements, thereby inducing a magnetic holding force whose magnitude is influenced by the relative position of the connecting elements.This allows the connecting device to encode a predefined coupling position without completely blocking relative translational movement along the coupling surface or relative rotational movement around a surface normal of the coupling surface of the connecting elements, as is the case, for example, when using encoding caused by positive locking elements. As a result, sufficient holding force can be provided in the coupling position of the connecting elements, while simultaneously ensuring easy release of the connection. This can be achieved, for example, by twisting the connecting elements relative to each other.

[0022] Accordingly, the connecting device can be designed such that, in a state where the connecting elements are in contact at the coupling surface, the first and second connecting elements are movable, and in particular rotatable, relative to each other between a coupling position and a removal position. As described above, the coupling position specifies a relative position of the connecting elements in which the magnetic elements of the first connecting element are aligned with their complementary magnetic elements of the second connecting element. The removal position describes a relative position of the connecting elements in which the magnetic elements of the first connecting element are offset from their complementary magnetic elements of the second connecting element.Accordingly, the magnetic connection force induced by the magnetic elements is reduced in the removal position relative to the coupling position. Therefore, in the removal position, the connecting elements can be separated more easily or with less force. For example, the connection device can be designed such that the connecting elements can be pivoted relative to each other about a surface normal of the coupling surface to assume the removal position. In this way, a user can release the connection between the connecting elements using leverage.

[0023] The proposed connection device therefore does not require interlocking positive locking elements, such as pins or grooves on the coupling surface, to define the coded coupling positions. Such components are typically prone to breakage. Accordingly, the proposed connection device eliminates the need for breakage-prone components to define at least one coded coupling position and can thus offer higher operational reliability compared to known arrangements.

[0024] The at least two magnetic elements of the first and / or the second connecting element can each form a magnetic pattern. In other words, the at least two magnetic elements of the first and / or the second connecting element can be configured in the form of a magnetic pattern. For the purposes of this document, a "magnetic pattern" is understood to be an arrangement of the different magnetic elements defined in a plane and / or spatially, in particular along the coupling surface. A magnetic pattern preferably comprises at least two defined magnetic zones of opposite polarity, each of which can have a defined planar and / or spatial configuration. Each of the at least two magnetic zones is preferably formed by at least one of the at least two magnetic elements. The magnetic zones are preferably arranged close together or substantially adjacent to each other. The magnetic zones can have different configurations.For example, the magnetic zones on the coupling surface can be of different sizes. The magnetic patterns formed on the coupling surfaces of the first and second connecting elements are correspondingly complementary to each other. In particular, the magnetic patterns can have more than two magnetic zones on the coupling surface, for example, four magnetic zones. The magnetic elements are preferably arranged such that the at least two magnetic elements on the coupling surface of the first and / or the second connecting element form a planar magnetic pattern with at least two ferromagnetic zones of opposite orientation or polarity.

[0025] Such magnetic patterns can differ from conventional magnetic arrangements in that the magnetic zones can be arranged close together or essentially adjacent to one another. This has the effect that their magnetic field lines extend less far and less strongly into the surrounding space. In other words, the magnetic patterns described here can provide more compact and denser magnetic field lines, which is achieved in particular by closely spaced magnetic zones or closely spaced magnetic elements of opposite polarity. This property is especially advantageous when electronic devices or components are to be held or attached to the treatment device by means of the connecting device, as this reduces the distance required to avoid interference caused by the magnetic field lines of the magnetic elements.

[0026] This design of the magnetic patterns allows for a higher degree of freedom in the arrangement of the magnetic elements on the coupling surface of the respective connecting elements. Accordingly, complex arrangements of magnetic elements for encoding coupling positions can be provided while maintaining a compact design of the connecting elements. This is due to the property of the magnetic patterns that magnetic zones or magnetic elements of opposite polarity can be arranged particularly close together or adjacent to each other.

[0027] The aforementioned different magnetic patterns can also serve to establish unambiguous assignments between connecting elements, for example, to allow different peripheral components to be attached to the treatment device only at one designated position, and not at any other. This can be important when two or more peripheral components are to be fixed at predetermined positions on the treatment device and a swapping of positions is not desired.

[0028] The different magnetic patterns can also be used to achieve specific positioning for different peripheral components – for example, a first position for a first peripheral component and a second position for a second peripheral component. Different numbers of positions can also be provided for different peripheral components – for example, a first position and a position rotated 180° relative to it for a first peripheral component, and a first position and two further positions, each rotated 120° relative to the first position, for a second peripheral component.

[0029] In a further development, the number of magnetic elements of the first connecting element can be different from or equal to the number of magnetic elements of the second connecting element.

[0030] For example, the first and / or the second connecting element can comprise at least three magnetic elements, where at least two of the three magnetic elements can have opposite polarities. By providing more than two magnetic elements on at least one of the two connecting elements, the connecting elements can be connected to each other in more than one coupling position.

[0031] The first and second connecting elements can be connected to each other in a first coupling position and in a second coupling position, wherein, in a state arranged in the first coupling position relative to a state arranged in the second coupling position, the relative orientation and / or position between the first and second connecting elements, in particular between their magnetic elements, can differ. In the state where they are in contact at the coupling surface, the first and second connecting elements can be movable, in particular rotatable, relative to each other between the first and second coupling positions.Additionally, the connecting elements can be connected to each other in further coupling positions, whereby a relative position or orientation of the connecting elements can differ from each other in each of the further coupling positions.

[0032] In a further development, the first and / or the second connecting element can each comprise at least three magnetic elements, wherein the magnetic elements of a connecting element can be arranged along the coupling surface such that, in a first direction along the coupling surface, at least two of the three magnetic elements are arranged side by side or offset from each other, and along a second direction along the coupling surface, two of the three magnetic elements are also arranged side by side or offset from each other. The first and second directions along the coupling surface can be offset from each other or perpendicular to each other. In this way, a two-dimensional magnetic pattern of the first and / or the second connecting element can be spanned along the coupling surface.A two-dimensional magnetic pattern can be understood, for example, as a magnetic pattern in which the orientation or polarity of its ferromagnetic zones changes along a first direction and along a second direction perpendicular to it.

[0033] Alternatively or additionally, the medical treatment system, in particular the medical treatment device or the connection device, may include a sensor unit for detecting a connection between the first and the second connection element. More precisely, the sensor unit may be configured to detect a relative orientation and / or a relative position and / or a coupling state between the first and the second connection element. For this purpose, the sensor unit may include at least one Hall sensor. Specifically, the Hall sensor may be configured to measure magnetic fields incident in its vicinity and, in response, detect a connection between the connection elements.The use of at least one Hall sensor is based on the understanding that, in the proposed connection device, the intensity and orientation of the magnetic field lines of the magnetic elements change depending on the relative position and orientation of the connecting elements, particularly depending on whether they are arranged in a coupling position or not. Based on this change in the magnetic field lines, which causes a weakening or strengthening of the magnetic field lines measured by the Hall sensor, the connection state between the connecting elements can be determined.

[0034] Alternatively or additionally, the sensor unit can be configured to determine information concerning the peripheral component when the first and second connecting elements are connected. For example, the transmitting unit can be configured to identify the type of peripheral component. For this purpose, the transmitting unit can be encompassed by the medical device, in particular the first connecting element.

[0035] Accordingly, different magnetic patterns of different peripheral components can also serve to identify the respective type of peripheral component.

[0036] In a further development, an interface can be provided between the first and second connecting elements. This interface can be, for example, electrical, inductive, and / or optical. Furthermore, the interface can be configured for data and / or power transmission when the first and second connecting elements are connected. In particular, this enables contactless data and / or power transmission.

[0037] Alternatively or additionally, the connection device can be configured to control transmission via the interface between the connection elements depending on the values ​​detected by the sensor unit. More precisely, the sensor unit can be configured to control transmission via the interface between the first and second connection elements in response to the information detected by the sensor unit concerning the connection between the first and second connection elements and / or the peripheral component.

[0038] In this way, for example, the coupling position detected by the sensor unit between the first and the second connecting element can be used to control the data and / or energy transmission via the interface and thus, for example, to control the peripheral component.

[0039] The problem stated above is further solved by a medical treatment device with a magnetic connecting element for detachably attaching peripheral components with the features of claim 14 and by a peripheral component for a medical treatment device with a magnetic connecting element for detachably attaching the peripheral component to the treatment device with the features of claim 16. Advantageous further developments will become apparent from the dependent claims as well as from the present description and the figures.

[0040] The medical treatment device and / or the peripheral component can be used, in particular, in the medical treatment system described above. The features described above in connection with the medical treatment system, especially with regard to the connecting device, are therefore also considered disclosed for the medical treatment device and the peripheral component.

[0041] Accordingly, a medical treatment device is proposed with a connecting element for the detachable attachment of peripheral components to the treatment device. The connecting element is designed to be force-fitted to a coupling surface with a complementary connecting element, the latter being associated with the peripheral component. For this purpose, the connecting element comprises at least two magnetic elements of opposite polarity along the coupling surface, which are designed to be complementary to at least two magnetic elements of the other connecting element.

[0042] The connecting element of the medical treatment device can form part of the connecting device described above in connection with the medical treatment system.

[0043] In a further development, the medical treatment device, in particular the connecting element, can include a sensor unit for detecting a coupling to the other connecting element. Alternatively or additionally, the treatment device, in particular the connecting element, can include an interface element that, in a coupled state to the other connecting element, is configured for data and / or energy transmission to or from the other connecting element.

[0044] Accordingly, a peripheral component for a medical treatment device is proposed, which is equipped with a connecting element for detachably attaching the peripheral component to the treatment device. The connecting element can be force-fitted to a complementary connecting element on the treatment device side via a coupling surface. Along the coupling surface, the connecting element comprises at least two magnetic elements of opposite polarity, which are designed to be complementary to at least two magnetic elements of the other connecting element.

[0045] The connecting element of the peripheral component can form part of the connecting device previously described in connection with the medical treatment system.

[0046] In a further development, the peripheral component, in particular the connecting element, can include an interface element which, in a state coupled to the further connecting element, is set up for data and / or energy transfer to or from the further connecting element.

[0047] Particularly advantageous in all embodiments of the present medical treatment systems comprising a medical treatment device and a peripheral component is the design of the magnetic elements or magnetic patterns of the connecting elements such that, when a connecting element is rotated relative to a complementary connecting element while the two connecting elements are in contact at a coupling surface, the resulting magnetic forces always act attractively. Thus, complementary connecting elements in contact at a coupling surface attract each other magnetically in any rotational orientation. Magnetic elements or magnetic patterns of this kind ensure that no repulsion occurs between the complementary connecting elements in any rotational position.This allows complementary connecting elements of a connection to be rotated relative to each other in stages without breaking the magnetic attraction between them. The degree of rotation depends on the complementary magnetic patterns. In embodiments of the present medical treatment systems with a medical treatment device and a peripheral component, and in medical treatment devices and peripheral components that have more than one coupling position in different relative rotational orientations of the connecting elements, the coupling positions can be characterized by the fact that the resulting magnetic attraction between the connected complementary connecting elements is greater in some rotational orientations than in adjacent rotational orientations.In other words, the coupling points are characterized by having local maxima of the resulting magnetic attraction forces, especially when the attraction force is applied against a rotation of the connecting elements relative to each other - e.g., parameterized via a rotation angle. Brief description of the characters

[0048] Preferred further embodiments of the invention are explained in more detail by the following description of the figures. These schematically show: Fig. 1. A side view of a medical treatment system with a connecting device for detachably attaching a peripheral component to a medical treatment device in a state in which the peripheral component is not attached to the treatment device; Fig. 2 a longitudinal sectional view of the medical treatment system in a state in which the peripheral component is attached to the treatment device in a first coupling position; Fig. 3 a side view of the medical treatment device with the peripheral component attached to it in the first coupling position; Fig. 4 a side view of the medical treatment device with the peripheral component attached to it in a second coupling position; Fig. 5. A side view of the medical treatment device and the peripheral component in a removal position; and Fig. Figures 6 to 13 show a top view of a coupling surface of a connecting device of different embodiments for detachably attaching the peripheral component to the treatment device. Detailed description of preferred embodiments

[0049] Preferred embodiments are described below with reference to the figures. Identical, similar, or equivalent elements in the different figures are designated with identical reference numerals, and repeated descriptions of these elements are sometimes omitted to avoid redundancy.

[0050] In Fig. Figure 1 schematically shows a medical treatment system comprising a medical treatment device 10, a peripheral component 14, and a connecting device 12 for detachably attaching the peripheral component 14 to the treatment device 10. More precisely, the treatment device 10 and the peripheral component 14 are illustrated in a disconnected state. In other words, the peripheral component 14 is not attached to the treatment device 10.

[0051] The medical treatment device 10 can be, for example, a blood treatment device, such as an adsorption therapy device, a dialysis machine, an infusion device, or a plasmapheresis device. The peripheral component 14 can be, for example, an external functional device located outside the treatment device 10, such as a blood pressure monitor. Accordingly, the peripheral component 14 is configured to be mechanically decoupled from the treatment device 10 during use in order to measure a patient's blood pressure. After the measurement has been taken, the peripheral component 14 can be attached to and coupled with the treatment device 10, for example, to transmit the blood pressure values ​​measured during use to the treatment device 10 and, secondly, to recharge an energy storage device of the peripheral component 14.

[0052] For mechanically coupling the peripheral component 14 with the treatment device 10, the connecting device 12 comprises a first magnetic connecting element 16 on the treatment device 10 and a complementary second connecting element 18 on the peripheral component 14, which can be force-fitted together at a coupling surface 20. The first connecting element 16 comprises four adjacent magnetic elements 22 along the coupling surface 20, two of which have a north polarity, as indicated by the letter "N" in Fig. 1 indicated, and two a south polarity, as indicated by the letter "S" in Fig. The second connecting element 18 also comprises four adjacent magnetic elements 24 along the coupling surface 20, which are designed to be complementary to the magnetic elements 22 of the first connecting element 16. Accordingly, the second connecting element 18 comprises two magnetic elements 24 with a north pole facing the coupling surface 20 and two magnetic elements 24 with a south pole facing the coupling surface 20.

[0053] In the Fig. Figure 1 shows the respective coupling surfaces of the treatment device 10 and the peripheral component 14 unfolded towards each other in a book-like manner, so that the two coupling surfaces 20 face the viewer.

[0054] The connecting device 12 shown here is a magnetic connecting device which uses a force transmission induced by the magnetic elements 22, 24 between the first and the second connecting element 16, 18 to attach the peripheral component 14 to the treatment device 10.

[0055] Fig. Figure 2 shows a state of the treatment device 10 in which the peripheral component 14 is attached to the treatment device 10 by means of the connecting device 12 in a first coupling position. The treatment device 10 and the peripheral component 14 are shown in a longitudinal sectional view. Compared to the one in Fig. In the illustration shown in Figure 1, the peripheral component 14 is rotated 180° around a vertical axis relative to the treatment device 10 in the first coupling position.

[0056] As in Fig. As shown in Figure 2, the first connecting element 16 is integrated into the treatment device 10, and the second connecting element 18 is integrated into the peripheral component 14. More precisely, the magnetic elements 22 of the first connecting element 16 are arranged within a housing 26 of the treatment device 10, such that they are spaced apart from the coupling surface 20. Similarly, the magnetic elements 24 of the second connecting element 18 are arranged within a housing 28 of the peripheral component 14, such that they are spaced apart from the coupling surface 20. In this way, the outer surfaces of the treatment device 10 and the peripheral component 14 each form the coupling surfaces 20 associated with the connecting elements 16 and 18, respectively.

[0057] In the embodiment shown here, the respective coupling surfaces 20 of the first and second connecting elements 16, 18 are flat. In an alternative embodiment, the coupling surfaces 20 can be curved.

[0058] In the Fig. In the first coupling position shown in Figure 2, the first and second connecting elements 16, 18 are arranged such that oppositely polarized magnetic elements 22, 24 face each other on the coupling surface 20 and thus exert a magnetic attraction on one another. In this coupling position, a relative position and orientation between the connecting elements 16, 18 are determined by the magnetic elements 22, 24. In other words, in the coupling position shown, the magnetic elements 22, 24 are arranged such that they encode a relative position and orientation of the connecting elements 16, 18.

[0059] The first connecting element 16 and the second connecting element 18 are formed as planar magnetic patterns with four elements. The magnetic patterns thus formed of the first and the second connecting element 16, 18 are complementary to each other. The magnetic pattern of the first and the second connecting element 16, 18 is arranged along the coupling plane 20 such that in a first direction along the coupling surface 20, as shown in Fig. As indicated by arrow A, two magnetic elements 22 or magnetic zones of opposite polarity are arranged one after the other. Furthermore, along a second direction perpendicular to the first direction along the coupling surface 20, as shown in Fig. 2 indicated by arrow B, two magnetic elements 22 or magnetic zones of opposite polarity arranged one after the other.

[0060] In the embodiment shown here, the first connecting element 16 comprises the same number of magnetic elements as the second connecting element 18. Alternatively, the number of magnetic elements 22 of the first connecting element 16 can differ from the number of magnetic elements 24 of the second connecting element 18. For example, the first and the second connecting elements 16, 18 can each comprise more than four magnetic elements 22, 24.

[0061] In the embodiment shown here, the connecting elements 16, 18 are arranged regularly within a circular area, enabling the connecting device 12 to allow the peripheral component 14 to be used both in the first coupling position and in the Fig. 3 shown, as well as in a second coupling position, as in Fig. As shown in Figure 4, the peripheral component 14 can be arranged in the first coupling position relative to the second coupling position. In this position, the peripheral component 14 is pivoted by 180° about a surface normal of the coupling surface 20, as shown in Figure 4. Fig. 3 and Fig. 4. In other words, the first connecting element 16 and the second connecting element 18 can be connected to each other in both the first and second coupling positions, whereby the relative orientation of the connecting elements 16 and 18 differs in the respective coupling positions. In the first and second coupling positions, the magnetic elements 22 of the first connecting element 16 are each aligned with the complementary magnetic elements 24 of the second connecting element 18 and thus face each other at the coupling surface 20.

[0062] As in Fig. As shown in Figure 5, the peripheral component 14 can be positioned relative to the treatment device 10, and correspondingly the first connecting element 16 can be positioned relative to the second connecting element 18, in a removal position. In the removal position, the magnetic elements 22 of the first connecting element 16 are offset from the magnetic elements 24 of the second connecting element 18. In this position, the magnetic attraction force induced by the magnetic elements 22, 24 is lower compared to the coupling positions, thus allowing the peripheral component 14 to be detached from the treatment device 10 with less effort for the user.

[0063] As indicated by arrows C in Fig. As indicated in Figures 3 to 5, the first connecting element 16 and the second connecting element 18, and thus the treatment device 10 and the peripheral component 14, are pivotable relative to each other in a position abutting the coupling surface 20 between the first coupling position, the second coupling position, and the removal position. In particular, the first connecting element 16 relative to the second connecting element 18, and thus the treatment device 10 relative to the peripheral component 14, are pivotable about a surface normal of the coupling surface 20 in order to be moved into one of the positions.

[0064] As in Fig. As shown in Figure 1, the connecting device 12 comprises a sensor unit 30 for detecting a relative orientation, a relative position, and thus a coupling position between the first connecting element 16 and the second connecting element 18, and thus between the treatment device 10 and the peripheral device 14. For this purpose, the sensor unit 30 comprises two Hall sensors 32, 34 arranged in the housing 26 of the treatment device 10 opposite the first connecting element 16. The Hall sensors 32, 34 are configured to determine a relative position between the peripheral component 14 and the treatment device 10 depending on a position magnet 36 arranged on the peripheral component 14.

[0065] When the peripheral component 14 is arranged in the second coupling position on the treatment device 10, the position magnet 36 is positioned opposite the first Hall sensor 32, which is shown to the left of the first connecting unit in the view of Figure 1. In this case, the first Hall sensor 32 detects the magnetic field lines of the position magnet 36 and can thus determine that the peripheral component 14 is arranged in the second coupling position.

[0066] If, on the other hand, the peripheral component 14 is arranged in the first coupling position, the position magnet 36 is arranged opposite the second Hall sensor 34. In this case, the second Hall sensor 34 detects the magnetic field lines of the position magnet 36 and can thus determine that the peripheral component 14 is arranged in the first coupling position.

[0067] Furthermore, the sensor unit 30 can be configured to determine information relating to the peripheral component 15. This can be done, for example, by the Hall sensors 32, 34 determining the strength of the magnetic field emitted by the position magnet 36 and using the magnetic field strength thus determined to identify a type of peripheral component 14, for example, whether it is a blood glucose meter or another peripheral component, such as a remote control.

[0068] This information can also be transmitted via the detection of a magnetic pattern from a connection unit and, for example, multiple Hall sensors.

[0069] The connecting unit 12 further comprises a first inductive interface 38 for transmitting energy between the treatment device 10 and the peripheral component 14, wherein the first inductive interface 38 comprises a first interface element on the treatment device side and a complementary second interface element on the peripheral component 14 side, which are aligned with each other or arranged opposite each other in the first coupling position, thereby enabling energy transmission between the components. The connecting unit 12 further comprises a second inductive interface 40 for transmitting data between the treatment device 10 and the peripheral component 14, wherein the second inductive interface 40 comprises a first interface element on the treatment device side and a complementary second interface element on the peripheral component 14 side.The second inductive interface 40 is provided in such a way that in the second coupling position of the connecting elements 16, 18 the interface elements of the second inductive interface 40 are aligned with each other, i.e. opposite each other, which allows data transmission between the components to take place.

[0070] The connection device 12 is configured such that transmission occurs via the first inductive interface 38 and the second inductive interface 40 in response to information determined by the sensor unit, in particular regarding the determined relative coupling position between the connecting elements 16, 18 and / or information about the type of the coupled peripheral component 14. If the sensor unit 30 detects that the peripheral component 14 is connected to the treatment device in the first coupling position, the connection device 12 can initiate energy transmission via the first inductive interface 38. The transmitted energy can be used to charge the peripheral component 14. Accordingly, the first coupling position represents a charging position for the peripheral component 14.

[0071] If the sensor unit 30 detects that the peripheral component 14 is connected to the treatment device 10 in the second coupling position, the connection device 12 can initiate data exchange via the second inductive interface 40. The second inductive interface 40 can be used to read information from the peripheral component 14 and make it available to the treatment device 10. Accordingly, the second coupling position represents a readout position for the peripheral component 14. Thus, different functions of the treatment device 10 can be assigned to the different coupling positions.

[0072] Both the sensor unit 30, which measures magnetic field lines via Hall sensors, and the inductive first and second interfaces 38, 40 enable contactless detection and transmission. Accordingly, in the embodiment shown here, the dashed lines in Fig. As indicated in Figure 1, the sensor unit 30 with the Hall sensors 32, 34 and the treatment device-side interface elements 38, 40 are embedded in the housing 26 of the treatment device 10. The position magnet 36 together with the peripheral component-side interface elements 38, 40 are also embedded in the housing 28 of the peripheral component 14. In this way, the treatment device 10 shown here allows interchangeable peripheral components 14 to be attached to an outer surface in predefined coupling positions without requiring dirt-prone edges or positive locking elements on the outer surface.

[0073] Fig. Figures 6 to 13 show a top view of the coupling surface 20 of the treatment device 10 or the peripheral component 14, illustrating different embodiments of the connecting elements 16, 18. More precisely, they show different embodiments of the magnetic elements 22, 24 of the connecting elements 16, 18, which are designed as a planar magnetic pattern. Fig. Figures 6 to 13 show at least part of the magnetic pattern of a connecting element 16, 18.

[0074] In Fig. Figure 6 shows a circular magnetic pattern in which essentially strip-shaped magnetic zones of opposite polarity are arranged one below the other or next to each other along the circular surface. The magnetic zones are formed by individual magnetic elements 22, 24. The magnetic elements 22, 24 are arranged adjacent to each other along the coupling surface.

[0075] Fig. Figure 7 shows a circular magnetic pattern in which several circular magnetic zones with a north pole are arranged in a regular pattern along the circular area. Between the circular magnetic zones, another magnetic zone with a south pole is implemented.

[0076] Fig. 8 and Fig. Figure 9 shows further circular magnetic patterns in which magnetic zones of opposite polarity are arranged next to each other.

[0077] Fig. Figures 10 to 13 show magnetic patterns formed from two spaced-apart circular surfaces, each of which has at least two magnetic zones of opposite polarity.

[0078] Where applicable, all individual features shown in the exemplary embodiments can be combined and / or exchanged without leaving the scope of the invention. Reference symbol list 10 medical treatment devices 12 Connection device 14 Peripheral component 16 first magnetic connecting element 18 second magnetic connecting element 20 coupling area 22 magnetic elements of the first connecting element 24 magnetic elements of the second connecting element 26 Housing of the treatment device 28 Peripheral component housings 30 sensor units 32, 34 Hall sensor 36 Position magnet 38, 40 inductive interface

Claims

[1] Medical treatment system comprising a medical treatment device (10), a peripheral component (14) and a connecting device (12) for detachably attaching the peripheral component (14) to the treatment device (10), comprising a first connecting element (16) on the treatment device side and a second connecting element (18) complementary to it on the side of the peripheral component (14), wherein the first and the second connecting element (16, 18) can be force-fitted together at a coupling surface (20), characterized by , that the first connecting element (16) has at least two magnetic elements (22) of opposite polarity along the coupling surface (20) and the second connecting element (18) has at least two magnetic elements (24) complementary to these. [2] Medical treatment system according to claim 1, wherein the coupling surface (20) of the treatment device (10) is flat or curved. [3] Medical treatment system according to claim 1 or 2, wherein the magnetic elements (22, 24) encode at least one relative coupling position between the first connecting element (16) and the second connecting element (18). [4] Medical treatment system according to one of claims 1 to 3, wherein in a state in contact at the coupling surface (20) the first connecting element (16) and the second connecting element (18) are movable relative to each other between a coupling position in which the magnetic elements (22) of the first connecting element (16) are aligned to the complementary magnetic elements (24) of the second connecting element (18) and a removal position in which the magnetic elements (22) of the first connecting element (16) are offset from the complementary magnetic elements (24) of the second connecting element (18). [5] Medical treatment system according to any one of claims 1 to 4, wherein the number of magnetic elements (22) of the first connecting element (16) is different from or equal to the number of magnetic elements (24) of the second connecting element (18). [6] Medical treatment system according to any one of claims 1 to 5, wherein the first and / or the second connecting element (16, 18) comprises at least three magnetic elements (22, 24), wherein the magnetic elements (22; 24) of a connecting element (16; 18) are arranged successively or offset from each other in two directions along the coupling surface (20). [7] Medical treatment system according to any one of claims 1 to 6, wherein the first connecting element (16) and the second connecting element (18) can be connected to each other in a first coupling position and in a second coupling position, wherein in a state arranged in the first coupling position relative to a state arranged in the second coupling position there is a relative orientation and / or a relative position between the first and the second connecting element (16, 18). [8] Medical treatment system according to claim 7, wherein in a state in contact with each other at the coupling surface (20) the first connecting element (16) and the second connecting element (18) are movable relative to each other between the first coupling position and the second coupling position. [9] Medical treatment system according to any one of claims 1 to 8, further comprising a sensor unit (30) for detecting a connection between the first and the second connecting element (16, 18), wherein the sensor unit (30) has at least one Hall sensor (32; 34). [10] Medical treatment system according to claim 9, wherein the sensor unit (30) is configured to detect a relative orientation and / or a relative position and / or a coupling position between the first and the second connecting element (16, 18). [11] Medical treatment system according to claim 9 or 10, wherein the sensor unit (30) is encompassed by or connected to the first connecting element (16) and is configured to determine information relating to the peripheral component (14) in a connected state of the first and the second connecting element (16, 18). [12] Medical treatment system according to one of claims 1 to 11, in which an interface (38; 40) is provided between the first connecting element (16) and the second connecting element (18), which is configured for data and / or energy transmission in the interconnected state of the first and the second connecting element (16, 18), wherein the connecting device (12) is configured to control a transmission via the interface (38; 40) between the first and the second connecting element (16, 18) in response to information detected by the sensor unit (30) concerning the connection between the first and the second connecting element (16, 18) and / or the peripheral component (14). [13] Medical treatment system according to any one of claims 1 to 12, wherein the at least two magnetic elements (22, 24) of the first and / or the second connecting element (16, 18) are designed in the form of a magnetic pattern. [14] Medical treatment device (10) with a magnetic connecting element (16) for detachably fastening peripheral components (14), which can be force-fitted to a coupling surface (20) with a complementary further peripheral component-side connecting element (18), wherein the connecting element (16) has at least two magnetic elements (22) of opposite polarity along the coupling surface (20), which are complementary to at least two magnetic elements (24) of the further connecting element (18). [15] Medical treatment device according to claim 14, further comprising: - a sensor unit (30) for detecting a coupling to the further connecting element (18), and / or - an interface element (38; 40) which is configured in a state coupled to the further connecting element (18) for data and / or energy transfer to or from the further connecting element (18). [16] Peripheral component (14) for a medical treatment device (10), characterized by , that this comprises a magnetic connecting element (18) for detachably fastening the peripheral component (14) to the treatment device (10), which can be force-fitted to a coupling surface (20) with a complementary further connecting element (16) on the treatment device side, wherein the connecting element (18) has at least two magnetic elements (24) of opposite polarity along the coupling surface (20), which are designed to be complementary to at least two magnetic elements (22) of the further connecting element (16).

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