TWI555539B - Device for connecting an external functional means to an arrangement, arrangement including a like device, and method for connecting - Google Patents

Description

Device for connecting external functional device and device, device including the same, and connection method thereof

The invention relates to a device for connecting at least one external functional device to a device, as described in the preamble of claim 1. The invention further relates to a method of connecting at least one external functional device and a device using the device of the invention, as described in the preamble of claim 15; and an apparatus comprising the device of the invention, as claimed in claim 16 The item mentioned.

Among various technical devices, such as medical technology therapeutic machines, laboratory technology devices, or devices such as food production, there is often a need to functionally couple external functional devices to devices. One of the examples of such an externally functional device is a disposable (disposable) housing box as described in German Patent Application Publication No. DE 10 2007 042 964.

When such an external functional device is functionally coupled, it must typically be properly positioned and/or secured to the device so that the sensors and actuators on the device side can properly cooperate with the external functional device.

It is an object of the present invention to provide other means for connecting at least one external functional device to a device. Furthermore, it is an object of the invention to provide a method for connecting at least one external functional device to a device, and an apparatus comprising such a device.

The object of the present invention can be attained by using a device having the features described in claim 1 of the patent application.

The device of the present invention can be used to connect (especially couple) at least one external functional device to a device. For this purpose, the device comprises at least one receiving device having at least one first contact and at least one second contact, the external functional device being receivable between the two contacts. At least the first contact portion and/or the second contact portion are movably disposed (preferably movably mounted). The meaning of "movable" means that the movable contact portion has an activity or mobility that can be automatically adjusted.

However, within the meaning of the present invention, the term "movable" may exclude simple pivoting motions such as hinges that are centered on the hinge, such as the generally well known door pivoting action. Or, conversely, with respect to the term "movable", the invention may also explicitly include the pivoting action described above.

When the first and/or second contact portions are provided, they are arranged or mounted in a swingable manner such that they can swing in at least one direction at least during the connecting operation.

The "external functional device" referred to herein may be a heat exchanger, a measuring device, a multi-functional disposable storage box, or the like.

An external functional device according to the present invention may be a device suitable for delivering a medical fluid such as blood, a substitute liquid, or the like. Such an external functional device can be, for example, a blood delivery container. It can contain parts for extracorporeal blood circulation. In particular, it can be designed as a disposable housing box as described in German Patent DE 10 2007 042 964. The disclosure of the entire disclosure of this application is hereby incorporated by reference. In the context of the present disclosure, terms such as "may include" and "may be" are used as terms synonymous with terms such as "better included" and "preferably".

The aforementioned external functional device preferably transmits or receives energy, measured values and/or mechanical actions and forces from the device, and can be fluidized with the device. Connected. However, such external functional devices may also simply be held on the device without interaction, signal communication and/or fluid communication with the device.

An external functional device to be accommodated or connected may have a cover on at least one surface. The cover can be a film. The arrangement of the membranes can be used to accommodate sensors, actuators, conduits, and/or parts of the foregoing. A plurality of openings may be provided in the film for accommodating the components; or, the components may be integrated with the laminate of the film and/or the plurality of layers of film.

Within the meaning of the present invention, the "device" may be a medical technology device such as a blood treatment device, a laboratory technology device, a pharmaceutical or food manufacturing device, and the like. The blood treatment device can be, for example, a dialysis device, a hemodialysis device, a hemodiafiltration device, or the like.

The term "connected" as used herein may mean or encompass a functional and/or mechanical connection between an external functional device and a device.

The term "coupled" as used herein may mean or encompass a functional and/or mechanical connection between an external functional device and a corresponding coupler on the device side, including when the external functional device is coupled. Its interaction with the device, signal communication, or fluid communication.

The "corresponding coupler of the device" can be, for example, a measuring device such as an inductor. It can be designed as a fluid conduit or the like.

Within the meaning of the present invention, "accommodating device" means a device adapted to accommodate at least one external functional device. "Receiving" can mean holding, enclosing, surrounding, covering external functional devices, etc., and can also indicate different combinations of the above various accommodation modes.

The "first contact portion" of the accommodating device is preferably disposed on the device itself or on a device. The first contact is movably disposed inside the device or device to oscillate, for example, in a vertical and/or horizontal direction or in other directions relative to the center of the earth.

The first contact portion can have different functions, and thus, for example, can be used to calibrate the direction of the external functional device, lock it, and/or transmit the pressing force to the external functional device, and can also provide different combinations of the various functions described above.

The first contact portion may in turn comprise or be connected to other further means, such as a compression device and/or a locking device, for compressing and/or holding the external functional device.

The first contact portion can be a "coupling surface", an "actuator-sensor board" (abbreviated as an AS board), or a machine interface.

The term "coupling surface" may refer, for example, to the top surface of at least a portion of a carrier member, a support member, and/or a measuring device of the device and/or device.

The "AS board" may include a plurality of actuators, inductors, and/or conduits for coupling to external functional devices or parts thereof.

The coupling surface may be flat or flat, but is not limited thereto. With the coupling surface, interaction or signal communication can be established between the external functional device and a portion of the device or device.

As used herein, "actuator" includes mechanical, pneumatic, and/or electric components, such as valves, positioning and/or adjustment members, motor operators, pressure pistons, and the like, but is not limited thereto.

According to the presently indicated meaning, the "sensor" covers various types of electric, optical, acoustic, virtual and/or digital sensors, transducers and/or probes, but is not limited thereto.

The sensor can be detected qualitatively or quantitatively, in particular to detect various physical and / or chemical properties and / or its changes, such as the increase or decrease of a certain effect, characteristics, quality, etc., such as temperature, pressure, humidity, optical signals (such as the brightness and / or optical changes of a certain component), heat radiation, sound, flow rate, and / or the increase or decrease of important environmental quality.

This sensor can be designed as a passive or active sensor.

Catheters that may be employed in accordance with the present invention may include, but are not limited to, fluid conduits (such as blood delivery channels), alternative catheters, electrical wires, lines for signal communication (such as fiberglass cables), and the like.

The "second contact portion" of the accommodating device may be identical in design to the first contact portion, and preferably has the same function.

The "second contact portion" may be a pressure plate which may be designed in a flat shape, a step shape, a wave shape or the like, and may be in contact with a peripheral functional device (point or surface contact). A portion of the platen, whether coupled or uncoupled, has a geometry that corresponds to an extension of the external functional device to be coupled to facilitate or facilitate the accommodation of the external functional device. And / or orientation.

When designing the second contact, it can be made active or rigid.

When the second contact portion is provided, it can be indirectly or in direct contact with the external functional device.

The second contact portion can be a door panel or a cover for enclosing the interior of the device or device, or enclosing a portion of the device or device.

Various advantageous refinements or preferred embodiments of the invention form the subject matter of the various patent claims.

A device in accordance with a preferred embodiment of the present invention includes at least one peripheral support device. The first contact portion can be mounted inside the support device.

A suitable "support device" can be a stable support device such as a support frame. The support device can be part of the receiving device for receiving the at least one external functional device.

The support device can be coupled to the device via a frictional, shell-like closure and/or a substantial joint.

The support device can be coupled to the first and/or second contact.

In particular, when the first contact portion is designed as an AS plate, the first contact portion can be disposed on a surface surrounding the portion or interior of the support device facing the second contact portion and/or the external functional device.

The first contact portion may be disposed inside the support device such that one surface of the first contact portion is in the same plane as one of the surfaces of the support device. In particular, the surface of the first contact portion facing the second contact portion and/or the external functional device, and the surface of the support device facing the second contact portion and/or the external functional device, may lie in the same plane.

An opening or a free space may be provided between the supporting device and the first contact portion disposed therein. This opening can form a gap, especially a peripheral gap.

The first contact portion can be mounted in a movable manner inside the support device. When the first contact portion is provided, it can be swung, in particular, can be swung along an axis perpendicular to its surface.

In a further preferred embodiment, at least one of the two contacts is mounted such that it can rotate about at least one of the axes of rotation. The possibility of rotation or oscillation achieved thereby should be considered as activity within the meaning of the invention.

The rotating shaft or the shaft body described below can also be regarded as a majority of the shaft body, as long as those skilled in the art have recognized that most shaft bodies are technically feasible. If a plurality of rotating or oscillating motions may be operated in more than one axial direction at the same time, for ease of reading, the following description also categorizes the motion by one axial rotation or swing. However, such classification is not intended to limit the invention.

The hinge can be a "solid" shaft. Within the meaning of the invention, the solid shaft can be a shaped shaft body, which can be a solid (3D) hard shaft body formed by connecting at least one contact portion to the support device. The physical axis of rotation can be oriented horizontally or vertically relative to the typical orientation during use of the device or relative to the center of the earth.

The solid shaft can be designed as a fixed or rotating shaft. Preferably, it includes at least one suitable bearing. The bearing may be constructed from a first contact and/or a second contact and a mounting joint between the support device and/or other components of the device.

The aforementioned mounting joint may include, for example, a shaft pin (embedded and/or inserted into a suitable mounting receiving device), a ball bearing, a roller bearing, an antifriction bearing (rolling bearing), a sliding bearing, etc., but is not limited thereto.

Alternatively, the "shaft" according to the present invention may also be regarded as a shaft body located in a three-dimensional space or a single-direction shaft body in a space. Therefore, in this case, the shaft body is a virtual and invisible axis when compared with the aforementioned shaped shaft body.

A shaft body within the meaning of the invention can be regarded as a center of rotation or a center point, and the aforementioned contact portion can be centered and rotated around and thus moved. Since the contact portion has mobility centering on the shaft body, the external functional device can be oscillated when it is connected to the device or device.

In each embodiment, the shaft body can pass through the contact portion. However, the shaft body can also extend outside the contact portion.

When the external functional device is in a connected condition, the shaft can pass through the interior of the device and/or through the interior of the device.

The manner in which the shaft body extends preferably allows each contact portion to be rotated or oscillated about the shaft body by only one rotation or swing, but the other components on the device or device do not rotate. Preferably, the above object is particularly suitable when the rotatable contact is a coupling surface or so-called machine interface between the external functional device.

When the shaft body is set, it can be allowed to compensate at least one contact portion to compensate for tolerance, insufficient shape fitting, wear phenomenon, etc., but does not allow the component to perform further rotation.

In a preferred embodiment, at least one of the two contact portions is mounted by means of at least one ball joint.

The contacts mounted by means of the ball joint can be omnidirectional in space. For example, the first contact can be mounted in such a way as to be omnidirectional in space.

In a further preferred embodiment, both the first and second contacts have a rotational axis. In a preferred embodiment, the axes of rotation of the two contacts (all or only one of them) are arranged parallel to each other. The two axes of rotation can each behave as a solid, tangible, concrete or virtual axis of rotation. The two rotating shafts can be designed in the same or different ways from each other.

In a further preferred embodiment, at least one contact surface and external functionality of the first and/or second contact portions when the first and/or second contact portions are coupled to the external functional device At least one of the contact surfaces of the device is superposed on each other in a planar or substantially planar manner.

According to the present invention, the "contact surface" on the first and/or second contact portion and the external functional device means that the external functional device is coupled to the device, and the respective contact portions and the external functional devices face each other. s surface.

The term "planar" as used in the context of the present invention means that the contacts are in planar or substantially planar contact with the external functional device. In the case of a connection, when the first and second contacts are relatively positioned, it is preferred that their respective facing surfaces be parallel or substantially parallel.

In this way, it is advantageous to avoid the squeeze or clip that may be generated by the contact portion and the external functional device during the coupling operation, thereby facilitating the optimal functional coupling of the components of the external functional device and facilitating avoidance of excessive Material deformation.

According to the present invention, the "coupling condition" of the external functional device is like "connection condition", which means that the external functional device is functionally connected to the device in the use state. Such a connection can be designed to perform a function, such as treatment of a medical fluid, such as blood therapy.

In another preferred embodiment, the device of the present invention includes at least one compression device for compressing the external functional device between the first contact portion and the second contact portion.

The "clamping device" used in the present invention may be or may include a compression actuator, an electric compression device, a motor actuator, a pneumatic compression device, a valve, a piston, etc., or a different combination of the above.

The hold down device can be coupled to the support device, the first contact, the second contact, and/or other components of the device or device. When connected, it may be connected to at least one of the aforementioned components in a frictional and/or forward manner.

The pressing device can apply and/or transmit a pressing force for pressing the external functional device between the two contacts. Such "compression force" can be aerodynamic force, electromotive force, magnetic force, induction force, and the like.

The hold down device can be adjusted so that the external functional device maintains compression between the two contacts for a period of time. The hold down device can include corresponding means for maintaining, controlling or adjusting the pressing force.

The construction of the pressing device ensures that the external functional device is brought into close contact via proper placement on one of the contact portions, for example with a coupling plane or machine interface.

In another preferred embodiment, the device of the present invention can further include at least one locking device to secure the compression of the external functional device between the first contact portion and the second contact portion.

Within the meaning of the present invention, the "locking device" may be a bolt, a lock, a door buckle, a U-shaped hook, a plug-in joint, a latching device or the like.

The locking device applies the extra force required for compression and increases the total compression force. The locking device can include a corresponding device for this purpose. In this way, it may be advantageous to further ensure a functional coupling between the external functional device and the first contact and the second contact.

A locking device can be coupled to the support device. The pressing device can press the second contact portion against the first contact portion via the locking device.

In a further preferred embodiment, the locking device includes at least one first detecting device for detecting the position and/or condition of the first contact portion and/or the second contact portion.

The "detection device" currently available can be, for example, a sensor and/or a detector for identifying the position and/or condition of the first contact portion and/or the second contact portion, and evaluating the position and/or Or situation (optional feature).

The "position and/or condition" of the first contact portion and/or the second contact portion may indicate the geometric arrangement and/or orientation of the first contact portion and/or the second contact portion; and may also indicate the first contact portion and The arrangement of the second contacts relative to one another.

The detecting device, the device and/or the device may comprise means for evaluating, controlling, adjusting, and in particular correcting the position and/or condition of the first contact and/or the second contact. These devices can communicate with each other.

The locking device may include suitable sensor devices for identifying the second contact portion, such as "door closing" and/or "door locking". According to the invention, a display device and/or an alarm device can be provided on the locking device for conveying the identification.

In another preferred embodiment, the first contact portion and/or the second contact portion are coupled to the support device, device or device via a joint.

The term "joint" as used in accordance with the invention may refer to a stable joint such as a hinge, a door hinge, a lever or the like.

The door hinge is preferably designed to have a shaft.

The contact portion connected to the support device via one joint preferably rotates around a shaft body extending in the vertical direction, for example. In particular, when the contact portion is in the form of a door panel and/or a cover panel, it can be opened and closed.

In a further preferred embodiment, for example, by using a door panel or as part of a door panel, at least one of the two contact portions, or a contact surface or pressing surface thereof, is rotatable or pivotable The way to connect to the device or device. In this embodiment, the other contact portion is also rotatably mounted. The above-mentioned rotating shaft (for example, in the form of a door hinge shaft) is located in a plane with the rotating shaft of the other contact portion, and more preferably in parallel with the rotating shaft of the other contact portion.

In a further preferred embodiment, the first contact portion and/or the second contact portion and/or the joint comprise at least one means for receiving the connecting element for functionally coupling the external functional device to the device .

The device for accommodating the connecting member may be an opening, in particular, an opening extending through the component, such as an introduction hole, and the interior thereof is designed to accommodate the catheter, the guiding member, and the stretching. Components, etc.

"Linking elements" as used within the scope of the present invention may encompass a variety of conduits, such as electric and/or pneumatic conduits; cables, such as fiberglass cables; and fluid conduits and the like.

Such a connecting element can, for example, supply pressure to an external functional device. The inductor can also be coupled to an external functional device via an intermediary of the connecting element.

In a further preferred embodiment, the first contact portion and/or the second contact portion comprise at least one transparent portion.

The use of the term "transparent" in the context of the present invention means that the component is designed to be translucent, especially translucent to the human eye.

The "transparent portion" may be formed of glass, translucent plastic, translucent film, or the like, or may include similar materials, but is not limited thereto.

The transparent portion facilitates the observation and/or optical monitoring of the interior of the device. The device can be opaque.

The contact portion, for example the second contact portion, in particular in the form of a door panel, may comprise a stable support structure, a partial region of which is provided with a transparent cover. This embodiment facilitates allowing the user of the device to optically monitor the relevant portion of the external functional device from the outside.

In a further preferred embodiment, the first contact and/or the second contact may comprise at least one positioning device for positioning the external functional device within the device.

The "positioning device" within the meaning of the present invention may, according to its design, accommodate the external functional device in the contact portion in a predefined manner, and/or be stereotactically positioned, frictionally fastened, sealed by the housing, etc. The method secures the external functional device to the contact portion. The positioning device can be designed, for example, as a positioning pin, a positioning mandrel or the like.

The external functional device may comprise at least one receiving device of the positioning device, such as an opening, in particular a through hole.

When the external functional device is positioned within the device, it can be accomplished by suitable means in accordance with, for example, the so-called circular/elliptical hole principle.

In a further preferred embodiment, the device of the invention comprises at least one sealing device.

Such a "sealing device" is adapted to seal the first volume of the device from the second volume.

The sealing device can be a mat that can be a rubber mat and can be designed as a multi-component sealing device. The sealing device can include at least one elastomeric material and can be disposed between the first contact portion and the second contact portion. The sealing device can be provided between the movable contact and the external functional device during use of the external functional device or in the case of a connection.

The sealing device may comprise a number of inductors, actuators and/or conduits, and/or parts of the foregoing; or may be used to house the aforementioned items. When designing a seal, it can be integrated into these components. These components can be coupled to the sealing device via a shell closure, friction and/or substantial joint.

Suitable sealing means include a sealing device as disclosed in one of the German patent specifications DE 10 2007 042 964 and DE 10 2008 062 037, or the applicant of the present invention has filed a name for the sealed medical treatment device with the German Patent and Trademark Office. A device for sealing a volume from another volume, the device and method thereof, the sealing device disclosed in the specification. The aforementioned patent application number is DE 10 2009 012 632.5, which is filed on the same day as the present application. The related disclosures of the aforementioned patent applications are hereby incorporated by reference in its entirety herein in its entirety.

The object of the present invention can be further achieved by the method described in claim 15 of the patent application.

The method includes connecting at least one external functional device to a device using the device of the present invention.

The object of the present invention can also be attained by using the apparatus as described in claim 16 of the patent application. Apparatus according to the invention comprises at least one device according to the invention. In a preferred embodiment, the device of the present invention is a blood treatment device, particularly a dialysis device, a hemodialysis device, a hemodiafiltration device, and the like.

In order to avoid repetition, the embodiments are described with reference to the previously described embodiments, and the embodiments can be applied without limitation to any embodiment of the method and apparatus of the present invention. Furthermore, the method and apparatus of the present invention can also achieve the same advantages as described above.

The device of the present invention is well suited for accurately coupling external functional devices and devices. Since the at least one contact is designed to be movable, for example, in the direction of rotation, the tolerances occurring between the individual components can be compensated for and the most desirable mechanical and/or functional coupling can be ensured. The complex coupling operation described in the German Patent Application Publication No. DE 10 2007 04 29 64, the entire disclosure of which is hereby incorporated by reference in its entirety, in its entirety, in The way of error is achieved.

Due to manufacturing tolerances, elastomeric properties, and wear of individual components over their useful life, it is often difficult to achieve the homogenous distribution of high pressure on the contact surface. By virtue of the mobility and elasticity or automatic adjustment of the contact in at least one spatial direction, a stable and leak-proof coupling and a homogenous distribution of the high pressure on the contact surface can be ensured.

Since the contact has the possibility of automatic adaptation (adjustment), it is ensured that the sensor and the actuator of the coupling surface (also referred to as the machine interface) are properly, robustly, error-free, and have low wear coupling, It is possible to ensure that the sensor and the actuator function relative to the corresponding coupler on the external functional device. vice versa.

Since all of the important components can be mounted and positioned on a single, stable support, it is advantageous to use a higher force to achieve the compaction of the components.

Since the contact portion has the ability to move or rotate around the shaft body, it is advantageous for the pressing force to be homogeneously distributed on one surface or distributed at several points. Therefore, if necessary, a higher force can be applied. The ability to move or rotate around the shaft ensures that no stress peaks are allowed when pressure is applied.

Since the present invention arranges that at least one contact portion (preferably two contact portions) can be rotated about a shaft body, the contact surfaces can often be ideally oriented parallel to each other, particularly in the case described in the preceding paragraph. This in turn allows optimal coupling with at least one external functional device while avoiding stress spikes. In addition, it is also possible to activate a highly precise mechanism whereby the two contact portions connecting the external functional device to the device or device are directed to each other.

By properly arranging the mounting points of the first and second contacts, it is thereby advantageous to compensate for component deflection caused by the application of a pressing force to couple the external functional device.

The mobility or oscillating motion of the contact portion within the tolerance range compensates for manufacturing tolerances of the individual components of the first and/or second contact portion and the sealing device, thereby facilitating reduction or substantial avoidance of wear.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to Figures 1 through 3, the device of the present invention will be described in the preferred embodiment. In the drawings, the same reference numerals are used to refer to the same or the same elements.

1 is a schematic side cross-sectional view showing a device 1 in accordance with a preferred embodiment of the present invention. The device 1 comprises a first contact 3 in the form of an AS plate. The first contact portion 3 is vertically swingably or rotatably mounted in a support device 5. The support device 5 here is a stable outer peripheral support frame.

On the support device 5, a second contact portion 7 is fastened by a joint 17. In the present embodiment, the second contact portion 7 is a stable or strong door panel. The second contact portion 7 is used to cover and clamp an external functional device 9. In this embodiment, the external functional device 9 is in the form of a disposable blood delivery container.

In order to additionally support the clamping and/or pressing of the external functional device 9, a pressing device 11 is fastened to the supporting device 5. In the present embodiment, the pressing device 11 is a pressing actuator. The pressing device 11 can press the door panel constituting the second contact portion 7 toward the AS plate constituting the first contact portion 3 via a locking device 13 (in this embodiment, a bolt). Between the bolts constituting the locking device 13 and the disposable casing constituting the external functional device 9, a magnet 25 is provided for holding the door panel, especially in the case where the external functional device 9 is not inserted.

The first contact portion 3 is mounted in the support device 5 by a shaft or shaft 14, and is located at two mounting points 15 (the top side and the bottom side in Fig. 2) on the narrow side thereof.

The joint 17 of the second contact portion 7 and the locking device 13 are each centered on the support device 5 and the second contact portion 7 is joined to the support device 5.

The locking device 13 includes an integrated sensor to form a detecting device 23. This sensor can, for example, detect whether the door panel constituting the second contact portion 7 is in the closed position.

A door cover 27 is connected above or in front of the door panel. The door cover 27 can include a plurality of transparent regions.

Figure 2 shows a front view of the device of the invention shown in Figure 1, in which the door cover 27 is not shown. The door panel includes a coupling member 29 for supplying pressure to the disposable cartridge.

Figure 3 shows the device of the invention shown in Figure 1 in which the door panel and door cover 27 are not shown.

In Fig. 3, under the disposable box on the AS board, a mat constituting a sealing device 21 is further provided (the AS board is not visible in Fig. 3 because it is covered by the disposable box and the mat).

A plurality of apertures 19 are shown in Fig. 3 for receiving fastening means such as a positioning mandrel (not shown). According to the circular/elliptical hole principle, the positioning mandrels are adapted to secure an external functional device to the first contact.

The invention is not limited to the foregoing embodiments. The foregoing embodiments are provided by way of example only.

1. . . Device

3. . . First contact

5. . . Support device

7. . . Second contact

9. . . External functional device

11. . . Pressing device

13. . . Locking device

14. . . Axle body (shaft, rotating shaft, joint)

15. . . Mounting point

17. . . Axle body (shaft, rotating shaft, joint)

19. . . Opening

twenty one. . . Sealing means

twenty three. . . Detection device

25. . . magnet

27. . . Door cover

29. . . Linking device

1 is a schematic side cross-sectional view showing a device in accordance with a preferred embodiment of the present invention;

Figure 2 is a schematic front elevational view of the device of the present invention shown in Figure 1;

Figure 3 is another schematic front elevational view of the device of the present invention shown in Figures 1 and 2.

1. . . Device

3. . . First contact

5. . . Support device

7. . . Second contact

9. . . External functional device

11. . . Pressing device

13. . . Locking device

14. . . Axle body (shaft, rotating shaft, joint)

17. . . Axle body (shaft, rotating shaft, joint)

twenty three. . . Detection device

25. . . magnet

27. . . Door cover

Claims (16)

A device (1) for connecting at least one external functional device (9) to a device, wherein the device (1) comprises: - at least one receiving device having at least one first contact (3) and at least a second contact portion (7) for accommodating the external functional device (9) between the first contact portion (3) and the second contact portion (7); the at least first contact portion (3) and The second contact portion (7) is movably disposed; the first contact portion (3) is rotated about a first shaft body (14) when the first contact portion (3) is mounted, and the second contact portion (the second contact portion ( 7) When mounted, rotating about a second shaft (17), wherein one of the contacts is or comprises an AS plate and is adapted to receive the external functional device (9). The device (1) of claim 1 has at least one peripheral support device (5), wherein the first contact portion (3) is mounted inside the support device (5). A device (1) according to the first or second aspect of the aforementioned patent application, wherein at least one of the two contact portions (3, 7) is mounted by means of at least one ball joint. The device (1) according to the first or second aspect of the invention, wherein the at least two contact portions (3, 7) have rotating shaft bodies (14, 17) disposed in parallel with each other. The device (1) according to the first or second aspect of the aforementioned patent application, wherein when the first and/or second contact portions (3, 7) are coupled to the external functional device (9), the first And/or at least one contact surface of the second contact portion (3, 7) At least one of the contact surfaces of the external functional device (9) is superposed on each other in a planar or substantially planar manner. A device (1) according to the first or second aspect of the aforementioned patent application, comprising at least one pressing device (11) for pressing the external functional device (9) against the first contact portion (3) and the second Between the contacts (7). The device (1) according to the first or second aspect of the aforementioned patent application, further comprising at least one locking device (13) for fixing the external functional device (9) in contact with the second contact portion (3) The compression between the parts (7). The device (1) of claim 7, wherein the locking device (13) includes at least one first detecting device (23) for detecting the first contact portion (3) and/or the second The position and/or condition of the contact (7). The device (1) of claim 2, wherein the first contact portion (3) and/or the second contact portion (7) are connected to the support device (5) using a joint (14, 17). The device (1) of claim 9, wherein the first contact portion (3) and/or the second contact portion (7) and/or the joint (17) comprise at least one member for receiving the connecting member (29) The device is adapted to connect the external functional device (9) to the device in a functional manner. The device (1) according to any one of the preceding claims, wherein the first contact portion (3) and/or the second contact portion (7) comprise at least one transparent portion. The device (1) according to any one of the preceding claims, wherein the first contact portion (3) and/or the second contact portion (7) comprise at least one positioning device for External functional device (9) is positioned on the device (1) internal. The device (1) according to any one of the preceding claims, wherein the at least one sealing device (21) is provided in at least the first contact portion (3) and the second contact portion ( 7) Between. A method of connecting at least one external functional device (9) to a device, characterized by the following steps: - using the device (1) according to any one of claims 1 to 13. An apparatus having at least one device (1) according to any one of claims 1 to 13. The device of claim 15 wherein the device is a blood treatment device.