Medical device

Abstract

A medical device is described. The medical device comprises a base unit, a housing unit connectable to the base unit, a user interface connectable to the base unit, a number of connection units for reversibly connecting the base unit to the housing unit and for reversibly connecting the base unit to the user interface, and a coupling device. The coupling device is configured to switch the number of connection units from a release state to a connection state and from the connection state to the release state.

Description

[0001] The present invention relates to a medical device comprising a base unit, a housing unit connectable to the base unit and a user interface connectable to the base unit.

[0002] The ability to combine a basic device with different user interfaces and different housing units allows the medical device to be adapted to different needs.

[0003] DE 10 2018 005 280 B3 discloses a ventilator as an example of a medical device, comprising a base unit with a cover plate, patient connections provided on the base unit, and a control unit provided on the cover plate. This ventilator is configured so that the cover plate can be arranged on the base unit at different angles relative to a vertical axis. For this purpose, the cover plate, as part of a user interface, is rotatably and lockably connected to the base unit via a plurality of components.

[0004] A disadvantage of the ventilator known from DE 10 2018 005 280 B3 is that, although the control unit can be pivoted around a vertical axis of the base unit, it cannot be removed without disassembly. Accessibility of this ventilator is therefore disadvantageously limited.

[0005] From DE 10 2020 122 672 A1 a ventilation device with the features of the generic term is known.

[0006] It is therefore an object of the present invention to provide a medical device with which - for example during device assembly or in the event of servicing - both a housing unit and a user interface can be securely connected to and detached from a basic device in a particularly simple manner.

[0007] These and other objects are achieved by the subject matter of the invention according to independent claim 1.

[0008] Further advantages and features of the invention are indicated by the dependent claims, the description and the figures.

[0009] According to the invention, a medical device is provided. The medical device comprises a base unit, a housing unit connectable to the base unit, a user interface connectable to the base unit, a number of connection units for reversibly connecting the base unit to the housing unit and for reversibly connecting the base unit to the user interface, and a coupling device. The coupling device is configured to switch the number of connection units from a release state to a connection state and from the connection state to the release state.

[0010] Thus, a medical device can be provided which is configured to be reversibly connected to a housing unit and a user interface by means of a number of connection units provided on the device side. Consequently, the modularity of the medical device can be improved. By providing a coupling device according to the invention, the number of connection units provided on the device side can be placed in a connected state for connection to the housing unit and the user interface or in a released state for release from the housing unit and the user interface. In this way, simple assembly and disassembly of the housing unit and user interface is possible, e.g., to simplify assembly and / or servicing of the medical device.

[0011] The subject matter of the invention thus supports the concept of a modular design of a medical device family, for example, by allowing a pre-produced basic device to be equipped with various user interfaces and, if necessary, different housing units with minimal assembly effort in a subsequent customer-specific production step ("customizing"). This makes it easy to create devices in different comfort and price categories from similar basic devices by varying the user interfaces, for example, with regard to the size of a user interface and the adjustability of the user interface relative to the basic device, and, if necessary, by varying the housing units.

[0012] Preferably, at least a part of the number of connection units is provided on the device side, ie is designed as a module of the medical device, in particular as a module of the basic device.

[0013] The medical device can, for example, be designed as a ventilator or an anesthesia device and have corresponding components and interfaces.

[0014] For example, if the medical device is designed as a ventilator or an anesthesia device, it can have a blower for controlling and / or regulating a volume flow and / or a pressure of a gas or gas mixture intended for ventilation. Furthermore, for example, the medical device can have a gas connection for supplying ambient air and / or compressed air and / or oxygen into the medical device. The medical device can also have, for example, one or more patient interfaces, such as an inspiratory and expiratory line. The medical device can also have, for example, a control device and / or a power supply (e.g., mains connection and / or battery and / or accumulator). The medical device can, particularly if it is designed as a ventilator or an anesthesia device, have further pneumatic components such as lines and valves, e.g.Proportional valves, check valves, solenoid valves and the like for influencing the gas flow from the medical device to the patient and from the patient to the environment or to the medical device.

[0015] The base unit serves to accommodate at least electronic components and preferably also pneumatic components of the medical device. The base unit can be designed as a device chassis or comprise a device chassis and additional components, e.g., add-on parts.

[0016] The user interface can be configured to input and / or output information to a user of the medical device, e.g., a practitioner. For example, the user interface can comprise a display such as a screen to present information. The user interface can comprise an operating unit, for example, input elements such as buttons, keys, rotary switches, and / or a display, in particular a touchscreen, for inputting information.

[0017] A release state is understood to be a state in which the housing unit and / or the user interface can be removed from the medical device. A connection state is understood to be a state in which the housing unit and / or the user interface cannot be removed from the medical device—in other words, they are locked.

[0018] According to the invention, the coupling device is a coupling device of the medical device, in other words provided on the device side, in still other words an assembly of the medical device, preferably an assembly of the basic device.

[0019] The housing unit, the user interface, the number of connection units and the coupling device can each be designed in multiple parts or multiple components.

[0020] The number of connection units can be singular or plural.

[0021] Preferably, the coupling device has a number of actuating elements for actuating the coupling device, wherein the number of actuating elements cannot be actuated without tools.

[0022] In this way, the safety of the medical device can be improved because unintentional activation of the actuating elements can be prevented.

[0023] Preferably, the medical device further comprises an openable cover which is configured to conceal the number of actuating elements when closed.

[0024] The medical device can thus be improved in terms of hygienic design.

[0025] The cover can be designed, for example, as a housing segment, for example, as a component of the housing unit, which can be or is attachable to the base unit. The cover can, for example, be detachably connected to the base unit, i.e., removable from it, in order to open the cover by removing or detaching it, or it can be pivotally connected to it, e.g., by means of a hinge or joint, in order to open the cover by pivoting it.

[0026] Furthermore, according to the invention, the coupling device comprises a number of locking shafts, wherein each of the number of locking shafts is rotatable about a respective central axis, so that the coupling device can be actuated.

[0027] The provision of a respective locking shaft enables the simultaneous action of this respective locking shaft on a plurality of connecting units, in particular those provided on the device side, provided that these are coupled, i.e., interact. In this respect, it is preferred that each of the plurality of locking shafts can be brought into engagement with a plurality of connecting units, in particular those provided on the device side. In this way, by actuating only one actuating element of the plurality of actuating elements, it is possible to influence a plurality of connecting units, in particular those provided on the device side, which improves the handling of the medical device by shortening the time required for disassembling / assembling the housing unit and / or the user interface.

[0028] Preferably, a portion of the number of connection units is configured as a number of connection units provided on the device side for reversibly connecting the base unit to the housing unit and for reversibly connecting the base unit to the user interface. Furthermore, a (i.e., another portion of the number of connection units is configured as a number of connection units provided on the user interface side for reversibly connecting the user interface to the base unit, wherein the number of connection units provided on the user interface side for connecting the user interface to the base unit can be positively connected to the number of connection units provided on the device side.

[0029] In this way, an assignment of the user interface to the basic device can be easily realized.

[0030] In the context of the invention, a connection unit provided on the device side is understood to mean a connection unit which is designed as part of the medical device, in particular as part of the basic device.

[0031] The number of connection units provided on the user interface side may be the same as or different from the number of connection units provided on the device side.

[0032] Preferably, the number of connection units provided on the device side is designed to enable, in the release state, removal or attachment of the housing unit and removal or attachment of the user interface along a common axis, preferably along a vertical axis of the basic device.

[0033] In this way, the handling of the medical device during assembly and / or service can be improved.

[0034] A vertical axis of the basic device is understood to be a vertically aligned axis of the basic device or medical device relative to an orientation of a properly installed basic device or medical device.

[0035] Preferably, the number of connection units provided on the device side is configured as a plurality. Furthermore, the plurality of connection units provided on the device side is preferably distributed uniformly, in particular rotationally symmetrically, around the common axis in order to provide a—preferably corresponding—plurality of arrangements of the user interface and / or the housing unit relative to the base device.

[0036] In this way, the arrangement of the user interface and / or the housing unit relative to the base unit can be flexibly designed. For example, patient interfaces, which may be provided on the base unit, and the user interface can be positioned ergonomically optimally (e.g., patient interfaces facing the patient, user interface facing the doctor).

[0037] Preferably, each connection unit of the number of connection units provided on the user interface side has at least one connection recess. Furthermore, preferably, each locking shaft of the number of locking shafts has at least one section with a shaft recess. Furthermore, preferably, each locking shaft of the number of locking shafts is designed such that, by rotating the locking shaft, the at least one shaft recess can be brought into alignment with a connection recess of the number of connection recesses in order to provide the release state. Furthermore, preferably, each locking shaft of the number of locking shafts is designed such that, by rotating the locking shaft, the shaft recess cannot be brought into alignment with the connection recess of the number of connection recesses in order to provide the connection state.

[0038] In this way, a particularly simple way to realize the release state and the connection state can be provided.

[0039] A connecting recess is understood to be a recess in a connecting unit.

[0040] A shaft recess is a recess in a locking shaft.

[0041] Particularly preferably, each locking shaft of the plurality of locking shafts has at least two sections with a shaft recess. Furthermore, each locking shaft of the plurality of locking shafts is preferably designed such that, by rotating the respective locking shaft, the at least two shaft recesses can be brought into alignment with two corresponding connecting recesses of the plurality of connecting recesses in order to provide the release state. Furthermore, each locking shaft of the plurality of locking shafts is preferably designed such that, by rotating the respective locking shaft, the at least two shaft recesses cannot be brought into alignment with two corresponding connecting recesses of the plurality of connecting recesses in order to provide the connecting state.

[0042] This makes it particularly easy for a locking shaft to act simultaneously on at least two connecting units provided on the device. This can reduce handling effort.

[0043] Preferably, at least some of the number of connection units provided on the user interface side have a contact surface for clamping the housing unit between the user interface and the base unit. Furthermore, the clamping engagement is preferably achieved by providing the connection state through the rotation of the number of locking shafts.

[0044] In this way, the housing unit can be clamped between the user interface and the base unit, wherein the clamping receptacle can advantageously be achieved essentially simultaneously with the provision of the connection state, ie can be achieved without additional coupling actuation.

[0045] Preferably, at least one sealing element is arranged between some or all of the number of contact surfaces and the number of connecting units provided on the device side, which sealing element is designed to have a prestress by producing the clamping receptacle.

[0046] In this way, a sealing effect can be achieved between the housing unit and the base unit.

[0047] The sealing element can be designed, for example, as an elastic sealing ring or as a compression rib on the housing unit. The housing unit can, for example, have a sealing flange for contact with the sealing element or for receiving the sealing element.

[0048] Preferably, the housing unit has a number of connection units provided on the housing unit side for reversibly connecting the housing unit to the basic device.

[0049] In this way, the coupling between the housing unit and the basic device can be specifically adjusted.

[0050] Preferably, the number of connection units provided on the housing unit side is designed to be positively connected to the number of connection units provided on the device side and / or positively connected to the number of connection units provided on the user interface side in the connected state.

[0051] In this way, a connection between the basic device and the housing unit and / or between the basic device and the user interface can be provided particularly easily.

[0052] Preferably, the medical device further comprises a locking device which is configured to lock the coupling device in the connected state.

[0053] In this way, an unintentional release of the coupling device, ie an unintentional change from the connected state to the released state, can be prevented.

[0054] Preferably, the locking device comprises a locking actuating unit for actuating the locking device, wherein the locking actuating unit requires an actuating action for actuation which is different from an actuating action for actuating the coupling device.

[0055] In this way, it can be ensured that the locking device is not accidentally activated during the operation of the coupling device.

[0056] A locking actuation unit is understood to be a unit for actuating the locking device. An actuation action is understood to be an action required by a user or operator of the medical device to actuate an element of the medical device, in particular the locking actuation unit and the coupling device.

[0057] Preferably, the medical device further comprises a number of additional connection units provided on the device side for reversibly connecting the base unit to the housing unit without the user interface being connected to the base unit.

[0058] While it is preferred that the user interface and the base unit accommodate the housing unit therebetween in a force-fitting and / or form-fitting manner, this is not required. According to the above preferred embodiment of the medical device, it is also possible for the base unit and housing unit to be connected to one another without the user interface having to be connected to the base unit to establish this connection. In this way, for example, a subunit comprising the base unit and the housing unit can be provided and, in a subsequent step, additionally provided with a user interface. In this way, the modularity of the medical device can be improved.

[0059] It is preferred that the housing unit be designed as a housing cover. It is further preferred that the housing unit has an additional number of connecting units provided on the housing element side for reversibly connecting the housing unit to the base unit.

[0060] It is preferred that the additional number of connection units provided on the housing element side is designed as a plurality of additional connection units provided on the housing element side in such a way that not all of the plurality of additional connection units provided on the housing element side engage with the base unit at the same time when the housing unit is placed on the base unit.

[0061] The user interface preferably has a first electrical and / or signaling interface. Furthermore, the base unit preferably has a corresponding second electrical and / or signaling interface. Furthermore, the first interface and the second interface can preferably be connected to establish an electrical and / or signaling connection.

[0062] By connecting the above-mentioned interfaces, it is possible to obtain an electrical and / or signal connection between the basic device and the user interface.

[0063] Preferably, an orientation of the first interface relative to the user interface and / or an orientation of the second interface relative to the base unit is variable.

[0064] In this way, the orientation of the first interface and / or the second interface can be adapted to a changing orientation of the user interface relative to the base unit.

[0065] Preferably, the first interface is designed as a connector which is floatingly mounted in or on the user interface, wherein the connector is spring-loaded in order to provide a contact force on the connector in the direction of the second interface.

[0066] In this way, a mechanical connection between the connector and the second interface can be reliably achieved.

[0067] The connector can be designed as a plug or as a slot, i.e. as a male or female part of the pairing of the first and second interface.

[0068] It is preferred that the user interface and / or the base unit and / or the housing unit have a centering device in order to align the first interface and the second interface with each other in at least one direction when the user interface is placed on the base unit.

[0069] These and other features and advantages of the invention will become apparent from the following description of the figures. These show: Fig. 1 an embodiment of a medical device according to the invention in a perspective exploded view, Fig. 2 a detailed view of a coupling device according to the invention, a number of connection units provided on the device side and a number of connection units provided on the user interface side, Fig. 3a is a broken-away sectional view of a device-side connection unit, a user interface-side connection unit, a housing-side connection unit, and a locking shaft with further elements in the release state, Fig. 3b the broken section view according to Fig. 3a in the transition from the release state to a connection state, Fig. 3c the broken section view according to Fig. 3a and Fig. 3b in the connected state, Fig. 4a a rear view of the medical device according to Fig. 1 with operating elements, Fig. 4b the medical device according to Fig. 1 in perspective view in assembled state with open veneer, Fig. 5 a detailed view of a locking shaft with a part of a locking device in a perspective exploded view, Fig. 6a a broken sectional view of the locking shaft according to Fig. 5 in installed and unlocked state in side view, Fig. 6b a broken-out sectional view of the locking shaft in the installed and unlocked state according to Fig. 6a in front view, Fig. 6c the broken-out sectional view of the locking shaft according to Fig. 6a with an operating tool in a transition state between locked and unlocked state, Fig. 6d a broken sectional view of the locking shaft in the transition state between locked and unlocked state according to Fig. 6c in front view, Fig. 6e the broken-out sectional view of the locking shaft according to Fig. 6a and Fig. 6c in a locked state, Fig. 6f a broken sectional view of the locking shaft in the locked state according to Fig. 6e in front view, Fig. 7 a perspective detailed view of a connection unit arranged on the user interface side, Fig. 8a the medical device according to Fig. 1 in perspective front view, Fig. 8b shows a further embodiment of a medical device according to the invention in a perspective front view, Fig. 8c shows a further embodiment of a medical device according to the invention in a perspective front view, Fig. 9 a broken-away sectional view with additional connecting units provided on the device side, Fig. 10a is a broken-away detailed view of a first interface and a second interface in the unconnected state, and Fig. 10b a broken-out detailed view of the first interface and the second interface in the connected state.

[0070] According to the invention, a medical device 100 is provided. An embodiment of such a medical device 100 is shown in Fig. 1 shown in perspective, rear exploded view.

[0071] A medical device 100 according to the invention comprises a base unit 1a, a housing unit 1b connectable to the base unit 1a, a user interface 2 connectable to the base unit 1a, a number of connection units 1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9b1, 11a, 11b, 11c, 11d, 16, 19 for reversibly connecting the base unit 1a to the housing unit 1b and for reversibly connecting the base unit 1a to the user interface 2, as well as a coupling device 9a, 9b, which is configured to connect the number of connection units 1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9b1, 11a, 11b, 11c, 11d, 16, 19from a release state to a connection state and from the connection state to the release state.

[0072] The basic device 1a can comprise a device chassis in which further modules and components can be accommodated, as shown in Fig. 1. On the basic device 1a, as part of the number of connection units 1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19, a number of device-side connection units 8a, 8b, 8c, 8d are provided. In all of the exemplary embodiments shown, the number of device-side connection units 8a, 8b, 8c, 8d is a plurality, namely four device-side connection units 8a, 8b, 8c, 8d, although this is not required. The device-side connection units 8a, 8b, 8c, 8d can essentially be designed in any desired manner.

[0073] The housing unit 1b can, as shown, be designed as a housing cover 1b, although this is not required. The housing unit 1b can be designed in multiple parts or in one piece. In the illustrated embodiment, the housing unit 1b comprises the housing elements 1b1, 1b2, 1b3.

[0074] The user interface 2 can be designed as a single or multi-part unit. In the illustrated embodiment, the user interface 2 comprises a cover plate 2a with a control unit 2b attached thereto, such as a display 2b. The cover plate 2a and the control unit 2b can be connected to each other via a mechanism or a joint, so that the control unit 2b can, for example, be pivotable relative to the cover plate 2a.

[0075] It is possible that the coupling device 9a, 9b is designed in several parts.

[0076] It is preferred and in Fig. 1 that the user interface 2 can have, as (i.e. another) part of the number of connection units 1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19, a number of connection units 11a, 11b, 11c, 11d provided on the user interface side for reversibly connecting the user interface 2 to the basic device 1a, wherein the number of connection units 11a, 11b, 11c, 11d provided on the user interface side for connecting the user interface 2 to the basic device 1a can be positively connected to the number of connection units 8a, 8b, 8c, 8d provided on the device side. The number of connection units 11a, 11b, 11c, 11d provided on the user interface side can essentially be configured as desired.

[0077] In the illustrated embodiment, the number of connection units 11a, 11b, 11c, 11d provided on the user interface side corresponds to the number of connection units 8a, 8b, 8c, 8d provided on the device side, although this is not required.

[0078] It is preferred and in Fig. 1 that the housing unit 1b has, as (i.e., yet another) part of the number of connection units 1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19, a number of connection units 1b4, 1b5, 1b6, 1b7 provided on the housing unit side for reversibly connecting the housing unit 1b to the base device 1a. In the illustrated embodiment, the number of connection units 1b4, 1b5, 1b6, 1b7 provided on the housing unit side corresponds to the number of connection units 8a, 8b, 8c, 8d provided on the device side, although this is not required. The number of connection units 1b4, 1b5, 1b6, 1b7 provided on the housing unit side can essentially be configured as desired.

[0079] In Fig. Figure 2 shows a detailed view of a coupling device 9a, 9b according to the invention, a number of connection units 8a, 8b provided on the device side, and a number of connection units 11a, 11b provided on the user interface side. These can be part of the system described in connection with Fig. 1 or form a separate embodiment.

[0080] In Fig. 2 only a part of the coupling device 9a, 9b is shown, since the coupling device 9a, 9b in the embodiment according to Fig. 1 and Fig. 2 comprises two essentially identical assemblies 9a, 9b, so that what has been said for part 9a applies accordingly to the part 9b not shown and vice versa.

[0081] According to the invention, the coupling device 9a, 9b comprises a number of locking shafts 9a3. In the embodiment according to Fig. 1, these can be two locking shafts, of which the locking shaft 9a3 in Fig. 2 is shown in detail.

[0082] Each of the plurality of locking shafts 9a3 can be rotatable about a respective central axis B, so that the coupling device 9a can be actuated, ie by rotating the locking shaft 9a3.

[0083] It is preferred and also in Fig. 1 and Fig. 2 shows that the coupling device 9a, 9b has a number of actuating elements 91a, 91b for actuating the coupling device 9a, 9b, wherein the number of actuating elements 91a, 91b cannot be actuated without tools. In Fig. 2 it is evident that the actuating element 91a of the number of actuating elements 91a, 91b can be actuated with a tool 17, such as a hexalobular screwdriver.

[0084] The locking shaft 9a3 can be rotatably mounted in some or all of the connecting units 8a, 8b, 8c, 8d provided on the device side. In the embodiment according to Fig. 2, both the connecting unit 8a provided on the device side and the connecting unit 8b provided on the device side have a corresponding bearing element (in Fig. 2 without reference numerals), so that two connecting units 8a, 8b of the medical device 100 provided on the device side jointly accommodate a locking shaft 9a3. However, this is not required.

[0085] Each locking shaft may have one or more sections with recesses, wherein each recess of a locking shaft is referred to as a shaft recess. In the illustrated embodiment according to Fig. 2, the locking shaft 9a3 has a total of three shaft recesses 9a1, 9a2. In the assembled state, the two shaft recesses 9a2 are accommodated in a respective connecting unit 8a, 8b provided on the device side.

[0086] Each of the number of connection units 11a, 11b, 11c, 11d provided on the user interface side can be designed as a connecting pin, as shown in Fig. 2. Each of the number of connection units 11a, 11b, 11c, 11d provided on the user interface side can have a connection recess 11b3 (in Fig. 2 without reference symbol), for example designed as a hollow groove.

[0087] The Fig. 3a to 3c show a sectional view of the detailed view according to Fig. 2 in a section plane in which line III-III in Fig. 2 and to which the central axis B is perpendicular, in an assembled state and in a state in which the basic unit 1a, the housing unit 1b, and the user interface 2 are assembled.

[0088] In the Fig. 3a to 3c illustrate by way of example that each of the number of connection units 8b provided on the device side can be fastened to the base unit 1a by means of a fastening means such as a screw 8b3. Likewise, each of the connection units 11b provided on the user interface side can be fastened to the user interface 2, for example, to its cover plate 2a, by means of a fastening means such as a screw 11b1. Instead of the respective fastening means, it is possible in both cases to provide an integral design with the base unit 1a or with the user interface 2.

[0089] While details of the invention are described in the Fig. 3a to 3c are shown only for one of the number of connection units 8b provided on the device side, for one of the connection units 11b provided on the user interface side and one of the connection units 1b5 provided on the housing unit side, all other corresponding units can be designed in the same way or in a mirror image thereto, so that repeated reproduction is dispensed with.

[0090] In Fig. 3a, the basic unit 1a, the housing unit 1b and the user interface 2 are assembled via their respective connection units 8b, 11b and 1b5, but are not yet connected, since the coupling device 9a with the locking shaft 9a3 has not yet been actuated to provide the connection state.

[0091] In the example shown, the connecting unit 8b provided on the device side is designed as a hollow body, which can comprise a sleeve 8b2 with a previously described bearing element 8b4 formed therein or thereon. The inside of the connecting unit 8b provided on the device side can further have a cone 8b1. The bearing element 8b4, as already described, accommodates the locking shaft 9a3, so that the shaft recess 9a2 formed in the locking shaft 9a3 is arranged in the region of the connecting unit 11b provided on the user interface side. In the assembled state, the connecting unit 11b provided on the user interface side is arranged in alignment with the connecting unit 8b provided on the device side and can be designed essentially as a pin-shaped connecting pin 11b, which can be brought into positive engagement with the connecting unit 8b provided on the device side.If the connection unit 8b provided on the device side comprises a cone 8b1 as shown, it is preferred that the connection unit 11b provided on the user interface side has a corresponding bevel or edge in order to engage with the cone 8b1 in a centering manner. The connection unit 11b provided on the user interface side can have a contact surface 11b5 in order to clamp the housing unit 1b between the base unit 1a and the user interface 2. The housing unit 1b can, as a connection unit 1b5 provided on the housing unit side, have, for example, a through-hole 1b5, through which the connection unit 11b provided on the user interface side can be guided in order to restrict the mobility of the housing unit 1b in a direction lying horizontally with respect to the viewing plane. Further and / or other, e.g.positive-locking pairings of the housing unit 1b with the user interface 2 and / or with the basic device 1a and / or with the connection unit 8b provided on the device side are possible.

[0092] It is possible and in Fig. 3a to 3c show that each locking shaft 9a3 of the number of locking shafts 9a3 can have a section with a shaft recess 9a2.

[0093] As in Fig. 3a to 3c, each locking shaft 9a3 of the plurality of locking shafts 9a3 can be configured such that, by rotating the locking shaft 9a3, the shaft recess 9a2 can be brought into alignment with a connecting recess 11b3 of the plurality of connecting recesses 11b3 in order to provide the release state. A correspondingly achieved release state is shown in Fig. 3a, in which the user interface 2 can be removed in the vertical direction with respect to the viewing plane, since the shaft recess 9a2 is aligned towards the connection recess 11b3.

[0094] As also in Fig. 3a to 3c, each locking shaft 9a3 of the plurality of locking shafts 9a3 may be configured such that, by rotation of the locking shaft 9a3, the shaft recess 9a2 cannot be brought into alignment with the connecting recess 11b3 of the plurality of connecting recesses 11b3 to provide the connecting state. Fig. 3b shows an intermediate state as it is achieved by rotating the locking shaft 9a3 along the Fig. 3b is accessible in the direction of rotation indicated by the arrow, so that the locking shaft 9a2 partially engages with the connecting unit 11b provided on the user interface side. Fig. 3c shows the connection state achievable by further rotation, in which the shaft recess 9a2 is not aligned with the connection recess 11b3, so that removal of the user interface 2 from the base unit 1a is not possible. Due to the described locking or establishment of the connection state, during the rotation of the locking shaft 9a3, the housing unit 1b is enclosed between the connection unit 8b provided on the device side and the connection unit 11b provided on the user interface side by means of the connection unit 1b5 provided on the housing unit side, in the illustrated example by means of the through hole 1b5.

[0095] In other words, the number of connection units 1b5 provided on the housing unit side is designed to be positively connected to the number of connection units 8b provided on the device side and / or positively connected to the number of connection units 11b provided on the user interface side in the connected state.

[0096] Depending on the direction of rotation of the locking shaft 9a3, a rotation of the locking shaft 9a3 not only leads to locking, but also to jamming of the connection unit 11b provided on the user interface side in the connection unit 8b provided on the device side. This advantageous effect occurs when using the Fig. 3b shown direction of rotation.

[0097] According to the above-described preferred embodiment of the medical device 100 according to the invention, an almost play-free connection is advantageously created.

[0098] In this context, it is particularly preferred and in Fig. 3a to 3c show that at least one sealing element 12 is arranged between some or all of the number of contact surfaces 11b5 and the number of connection units 8b provided on the device side, which sealing element 12 is arranged and configured to have a prestress by establishing the clamping receptacle. For example, the sealing element 12 can be arranged between some or all of the number of contact surfaces 11b5 and some or all of the number of connection units 1b5 provided on the housing unit side. It can be seen that the sealing element 12, which is not significantly prestressed in the release state, is prestressed, i.e., elastically compressed, in the connected state by clamping the number of connection element units 11b provided on the user interface side in the number of connection units 8b provided on the device side. As a result, the medical device 100 can be sealed in a particularly favorable manner on the inside.

[0099] If the medical device 100 is configured as described above, it is preferably possible, in the release state, to enable removal or attachment of the housing unit 1b and removal or attachment of the operating part 2 along a common axis A, preferably along a vertical axis A of the basic device 1a. The common axis A or the vertical axis A corresponds to the example shown in Fig. 1 shown axis A.

[0100] In Fig. 4a shows that the number of actuating elements 91a, 91b in the medical device 100 according to the invention Fig. 1 can be accessible from a rear side of the medical device 100. It is preferred that pictograms 13a, 13b indicate the actuation action with which the coupling device 9a, 9b can be actuated and further indicate which state of the actuating elements 91a, 91b corresponds to the release state or the connection state.

[0101] In Fig. 4b shows that the medical device 100 is Fig. 1 may preferably have an openable cover 7, which may be configured to conceal the number of actuating elements 91a, 91b in the closed state. In the Fig. In the embodiment shown in Fig. 4b, the openable cover 7 is designed as a completely removable housing element 7.

[0102] If the number of connection units 8a, 8b, 8c, 8d provided on the device side and the coupling device 9a, 9b, as shown in Fig. 1 is the case, are arranged in a mirror image with respect to a vertical plane or plateau of the medical device 100, the coupling device 9a, 9b may require different actuation actions to provide the release state or connection state, so that the Fig. The pictograms shown in Figure 4a take this circumstance into account.

[0103] It is preferred that the medical device 100 Fig. 1 further comprises a locking device which can be configured to lock the coupling device 9a, 9b in the connected state. A corresponding embodiment with a modified connecting shaft 9a3 is shown in perspective view in Fig. 5. If several locking shafts 9a3 are provided, each locking shaft 9a3, 9b3 can be designed accordingly.

[0104] The locking shaft 9a3 or the actuating element 9a1 can have a stop projection 9a4. Furthermore, the locking shaft 9a3 can have a compression spring 9a5. Furthermore, the locking shaft 9a3 can have a pin 9a7. Furthermore, the locking shaft 9a3 can have a stop ring 9a6, which can be formed integrally with the locking shaft 9a3 as part of the latter or can be provided as a separate component on the locking shaft 9a3. The stop ring 9a6 can, for example, be supported on the locking shaft 9a3 or on the bearing element 8b4 of the connecting unit 8b provided on the device side. However, the stop ring 9a6 can also be omitted entirely.

[0105] The locking shaft 9a3, the stop ring 9a6, the compression spring 9a5 and the locking actuating unit 91a with the stop projection 9a4 can be assembled as shown in Fig. 5 and 6a to 6f, the locking actuating unit 91a is assembled into an assembly by means of a pin 9a7, in which the compression spring 9a6 and the locking actuating unit 91a are pushed onto the locking shaft 9a3 and then secured with the pin 9a7, which is pressed into the elongated cross-bores of the locking actuating unit 91a and the locking shaft 9a3. This holds the compression spring 9a5 in a pre-tensioned position. With the base unit 1a exposed, this assembly can be easily pushed into the corresponding connecting unit 8a, 8b provided on the device side up to a preferably provided stop, which is advantageous for assembly and servicing.

[0106] Fig. 6a to 6f show broken-away sectional views of a previously described modified locking shaft 9a3 in the installed state, viewed from the side. In the installed state, the stop projection 9a4 is received between locking ribs 14 of the base unit 1a and locking ribs 15 of the housing unit 1b. Depending on the design of the locking ribs 14, 15 and the stop projection 9a4, the angular range in which the locking shaft 9a3 can be rotated is limited. In the illustrated embodiment, the achievable angular range is, for example, approximately 180°. It is preferred that there are two locking states so that the locking shaft 9a3 can be locked in both the connected state and the released state. This can be achieved, for example, by two recesses in which the stop projection 9a4 can be locked. The recesses can be formed by the locking ribs 14, 15.In order to release the locking shaft 9a3 from the locking position or positions, it is preferably necessary to actuate a locking actuating unit 91a of the locking device to actuate the locking device. The locking actuating unit 91a requires an actuation action that is different from an actuation action for actuating the coupling device 9a. This is achieved in the exemplary embodiment according to FIG. Fig. 6a to 6f is achieved in that the compression spring 9a5 provides a preload of the locking shaft 9a3, which requires a displacement of the locking actuating unit 91a on the locking shaft 9a3 axially along the central axis B, preferably by means of a tool 17, in order to release the stop projection 9a4 from its corresponding recess, ie from the locking position, and thus to be able to rotate the locking shaft 9a3. A corresponding process is sequentially in the Fig. 6a to 6f.

[0107] Fig. 6a and Fig. 6b shows the release state of the coupling device 9a, 9b, in which the user interface 2 and the housing unit 1b can be removed from or attached to the base unit 1a. The locking ribs 14, 15 capture the stop projection 9a4 from above and below, so that the open angular position of the locking shaft 9a3 is fixed, i.e., locked, and thus rotational movement is initially impossible.

[0108] In Fig. 6c and Fig. Figure 6d illustrates the locking process: the locking actuation unit 91a must be pressed in with a tool 17 against the restoring force of the compression spring 9a5 and is guided longitudinally along the locking shaft 9a3, so that the stop projection 9a4 is released from the locking ribs 15. Only in this position is the rotational movement enabled. The locking ribs 14, however, remain engaged even in this rotational plane of the stop projection 9a4, so that a rotational movement of the locking shaft 9a3 is only possible within the intended angular range of, for example, 180°.

[0109] Fig. 6e and Fig. 6f show the locked state and the connected state in which the user interface 2 and the housing unit 1b are connected to the base unit 1a. By axially relieving the locking actuation unit 91a, it moves back to its axial starting position due to the spring force of the compression spring 9a5, so that the locking ribs 14, 15 again catch the stop projection 9a4 from above and below. This fixes the locking shaft 9a3 in the locked position, i.e., locked, and thus prevents unintentional rotation.

[0110] In Fig. 9 is a fragmentary sectional view through a plateau or vertical plane of another embodiment of a medical device 100.

[0111] In Fig. 9 shows that the medical device 100 can have a number of additional connection units 9a1, 9b1 provided on the device side for reversibly connecting the base unit 1a to the housing unit 1b, without the user interface 2 having to be connected to the base unit 1a. In the illustrated embodiment, this is realized in that at least one of the locking shafts 9a3, 9b3—in the illustrated embodiment, each of the locking shafts 9a3, 9b3—has a further shaft recess 9a1, 9b1. Furthermore, the illustrated embodiment shows that the housing unit 1b can have a further number of connection units 16 provided on the housing element side for connection to the number of additional connection units 9a1, 9b1 provided on the device side.In the illustrated embodiment, the housing unit 1b has two additional connecting units 16 provided on the housing element side for this purpose, although this is not required. The additional number of connecting units 16 provided on the housing element side can, for example, be designed as a number of hooks 16, which can be brought into positive engagement with the number of additional connecting units 9a1, 9b1 provided on the device side. By placing the housing unit 1b on the base unit 1a and correspondingly actuating the number of additional connecting units 9a1, 9b1 provided on the device side, achievable in the illustrated embodiment by rotating the number of locking shafts 9a3, 9b3, a connection between the base unit 1a and the housing unit 1b can be achieved. Such an approach offers advantages for device logistics.

[0112] In Fig. 1 further shows that it is preferred that the base unit 1a has one or more projections 18 in order to provide a reversible connection to the housing element 1b. For this purpose, the housing element 1b can have an additional number of connecting units 19 provided on the housing element side. The one or more projections 18 can be designed, for example, as a plurality of fangs 18. The additional number of connecting units 19 provided on the housing element side can, for example, be designed essentially in a pocket-like manner such that the additional number of connecting units 19 provided on the housing element side engage with the one or more projections 18 when the housing unit 1b is placed on the base unit 1a.It is preferred that the one or more projections 18 and / or the preferably pocket-shaped additional number of connecting units 19 provided on the housing element side are each equipped with insertion bevels to facilitate attachment. It is particularly advantageous to provide a plurality of projections 18 in the form of fangs that are not all of equal length, so that not all fangs 18 engage simultaneously with the additional number of connecting units 19 provided on the housing element side. This facilitates assembly.

[0113] In Fig. 1 illustrates that it is preferred that the number of connection units 8a, 8b, 8c, 8d provided on the device side be configured as a plurality, wherein the plurality of connection units 8a, 8b, 8c, 8d provided on the device side are evenly distributed around the common axis A in order to provide a plurality of arrangements of the user interface 2 and / or the housing unit 1b relative to the base unit 1a. In the illustrated embodiment, for example, four orientations of the user interface 2 relative to the base unit 1a can be achieved by correspondingly rotating the user interface 2 around the common axis A.In this context, it is preferred that, if each of the number of connection units 11a, 11b, 11c, 11d provided on the user interface side is designed as described above essentially as a pin-shaped connection pin 11b, the connection pin 11b has a plurality of connection recesses 11b3 which can be brought into engagement with the respective locking shaft 9a3 in the manner described above depending on the orientation of the user interface 2. The number of the plurality of connection recesses 11b3, together with the number of connection units 11a, 11b, 11c, 11d provided on the user interface side, determines the possible number of orientations of the user interface 2 relative to the base unit 1a. In the illustrated embodiment according to . Fig. 7, it is preferred that the plurality of connecting recesses 11b3 be evenly distributed around a central axis of the connecting pin 11b, with each two adjacent connecting recesses 11b3 enclosing a common predetermined angle α. In the illustrated embodiment, the common predetermined angle α is essentially 90 degrees, for example, but may deviate from this.

[0114] The Fig. 8a, Fig. 8b, Fig. 8c show three different embodiments of a medical device 100 according to the invention, which can be achieved by correspondingly different arrangements of the user interface 2 and / or the housing unit 1b relative to the basic device 1a.

[0115] Fig. 8a shows a medical device 100 in which the user interface 2 is oriented in the same direction as the patient connections 3.

[0116] Fig. 8b shows a medical device 100 in which the user interface 2 is arranged to the left of the patient connections 3 in the viewing direction.

[0117] Fig. 8c shows medical device 100, in which the user interface 2 is arranged in the viewing plane and to the right of the patient connections 3. The arrangement of the user interface 2 to the left or right of the patient connections 3 offers the possibility of connecting the control unit 2b of the user interface 2, if present, to the cover plate 2a, if present, in a lower position than in the arrangement according to Fig. 8a, which allows for a more compact design.

[0118] It is preferred and in Fig. 10a and Fig. 10b illustrates that an automatic electrical and / or signaling connection between the user interface 2 and the base unit 1a can be achieved upon assembly of the medical device 100. For this purpose, it is preferred that the user interface 2 has a first electrical and / or signaling interface 20, wherein the base unit 1a has a corresponding second electrical and / or signaling interface 21, wherein the first interface 20 and the second interface 21 can be connected to establish an electrical and / or signaling connection.

[0119] In the illustrated embodiment, the user interface 2 or its cover plate 2a has a cable base 23, wherein the first interface 20 is designed as a connector which is mounted floatingly in or on the user interface 2 by the cable base 23 being mounted floatingly on the cover plate 2a. The second interface 21 is, in the illustrated embodiment, permanently installed on a circuit board 24 which is connected to the base unit 1a. It is preferred and in Fig. 10a, Fig. 10b shows that the user interface 2 and / or the base unit 1a and / or the housing element 1b has a centering device 23a, 24a for aligning the first interface 20 and the second interface 21 with each other in at least one direction when the user interface 2 is placed on the base unit 1a. In the illustrated embodiment, the circuit board 24 has lugs 24a for this purpose, which can be brought into engagement with catch funnels 23a of the user interface 2.

[0120] It is also preferred and in Fig. 10a, Fig. 10b shows that the connector 20 is spring-loaded to provide a contact force on the connector 20 in the direction of the second interface 21. In the illustrated embodiment, this is achieved by a spring-loaded pressure piece 25, which can be clamped between the cover plate 2a and the cable base 23.

[0121] It is further preferred that the orientation of the first interface 20 relative to the user interface 2 and / or the orientation of the second interface 21 relative to the base unit 1a be variable. This allows the first interface 20 and the second interface 21 to be connected in any possible orientation of the user interface 2 relative to the base unit 1a.

[0122] All features disclosed herein may be combined with one another unless this affects alternatives or is contradictory. List of reference symbols 1a basic device 1b Housing unit 1b1, 1b2, 1b3 housing element 1b4, 1b5, 1b6, 1b7 Housing unit side provided connection unit, through hole 2 User interface 2a Cover plate of the user interface 2b Control unit, user interface display 3 patient connections 7 Veneer 8a, 8b, 8c, 8d connection unit provided on the device side 8b1 cone 8b2 sleeve 8b3 screw 8b4 bearing element 9a, 9b coupling device 9a1, 9b1 additional connection unit provided on the device side, additional shaft recess 9a2 Shaft recess 9a3 Locking shaft 9a4 Stop projection 9a5 compression spring 9a6 stop ring 9a7 pen 11a, 11b, 11c, 11d connection unit provided on the user interface side, connection pin 11b1 screw 11b3 Connecting recess, cove 11b5 Contact surface 12 Sealing element 13a, 13b pictogram 14 locking ribs on the base unit 15 locking ribs on the housing unit 16 additional number of connection units provided on the housing element side 17 tools 18 lead 19 additional number of connection units provided on the housing element side 20 first interface, connector 21 second interface 23a Centering device, catching funnel 24 circuit board 24a Centering device, nose 25 spring pressure piece 91a, 91b Actuating elements, locking actuating unit 100 medical devices A common axis, vertical axis B Center axis of the locking shaft α predetermined angle

Claims

[1] Medical device (100), comprising: - a basic device (1a), - a housing unit (1b) connectable to the basic unit (1a), - a user interface (2) connectable to the basic unit (1a), - a number of connection units (1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19) for reversibly connecting the base unit (1a) to the housing unit (1b) and for reversibly connecting the base unit (1a) to the user interface (2), and - a coupling device (9a, 9b) which is configured to switch the number of connection units (1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19) from a release state to a connection state and from the connection state to the release state, characterized bythat the coupling device (9a, 9b) has a number of locking shafts (9a3), each of the number of locking shafts (9a3) being rotatable about a respective central axis (B) so that the coupling device (9a, 9b) is operable. [2] Medical device (100) according to claim 1, wherein the coupling device (9a, 9b) has a number of actuating elements (91a, 91b) for actuating the coupling device (9a, 9b), wherein the number of actuating elements (91a, 91b) cannot be actuated without tools. [3] Medical device (100) according to claim 2, further comprising an openable cover (7) which is configured to conceal the number of actuating elements (91a, 91b) in the closed state. [4] Medical device (100) according to one of the preceding claims, wherein a part of the number of connection units (1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19) is designed as a number of device-side connection units (8a, 8b, 8c, 8d) for reversibly connecting the base unit (1a) to the housing unit (1b) and for reversibly connecting the base unit (1a) to the user interface (2), wherein a part of the number of connection units (1b4, 1b5, 1b6, 1b7, 8a, 8b, 8c, 8d, 9a1, 9a2, 9b1, 11a, 11b, 11c, 11d, 16, 18, 19) is designed as a number of connection units (11a, 11b, 11c, 11d) provided on the user interface side for reversibly connecting the user interface (2) to the basic device (1a), and wherein the number of connection units (11a, 11b, 11c, 11d) provided on the user interface side for connecting the user interface (2) to the basic device (1a) can be positively connected to the number of connection units (8a, 8b, 8c, 8d) provided on the device side. [5] Medical device (100) according to one of the preceding claims, wherein the number of connection units (8a, 8b, 8c, 8d) provided on the device side is designed to enable, in the release state, removal or attachment of the housing unit (1b) and removal or attachment of the user interface (2) along a common axis (A), preferably along a vertical axis (A) of the basic device (1a). [6] Medical device (100) according to claim 4 or 5, wherein the number of connection units (8a, 8b, 8c, 8d) provided on the device side is designed as a plurality, wherein the plurality of device-side connecting units (8a, 8b, 8c, 8d) are evenly distributed around the common axis (A) to provide a plurality of arrangements of the user interface (2) and / or the housing unit (1b) relative to the base device (1a). [7] Medical device (100) according to claim 5 and 6, wherein each connection unit (11a, 11b, 11c, 11d) of the number of connecting units (11a, 11b, 11c, 11d) provided on the user interface side have a connecting recess (11b3), wherein each locking shaft (9a3) of the plurality of locking shafts (9a3) has a section with a shaft recess (9a2), wherein each locking shaft (9a3) of the plurality of locking shafts (9a3) is designed such that by rotation of the locking shaft (9a3) the shaft recess (9a2) can be brought into alignment with a connecting recess (11b3) of the plurality of connecting recesses (11b3) to provide the release state, and wherein each locking shaft (9a3) of the plurality of locking shafts (9a3) is configured such that by rotation of the locking shaft (9a3), the shaft recess (9a2) cannot be brought into alignment with the connecting recess (11b3) of the plurality of connecting recesses (11b3) to provide the connecting state. [8] Medical device (100) according to claim 6 or 7, wherein the housing unit (1b) has a number of connection units (1b4, 1b5, 1b6, 1b7) provided on the housing unit side for reversibly connecting the housing unit (1b) to the basic device (1a). [9] Medical device (100) according to claim 8, wherein the number of connection units (1b4, 1b5, 1b6, 1b7) provided on the housing unit side is designed to be positively connected to the number of connection units (8a, 8b, 8c, 8d) provided on the device side and / or positively connected to the number of connection units (11a, 11b, 11c, 11d) provided on the user interface side in the connected state. [10] Medical device (100) according to claim 7 and optionally 8 and / or optionally 9, wherein at least a part of the number of connection units (11a, 11b, 11c, 11d) provided on the user interface side has a respective contact surface (11b5) for clamping the housing unit (1b) between the user interface (2) and the basic device (1a), wherein the clamping receptacle is achievable by providing the connection state by rotating the number of locking shafts (9a3). [11] Medical device (100) according to claim 10, wherein between one or all of the number of contact surfaces (11b5) and the number of connecting units (8a, 8b, 8c, 8d) provided on the device side, at least one sealing element (12) is arranged, which is designed to have a prestress by producing the clamping receptacle. [12] Medical device (100) according to one of the preceding claims, further comprising a locking device (9a4, 9a5, 9a6, 14, 15) which is configured to lock the coupling device (9a) in the connected state. [13] Medical device (100) according to claim 12, the locking device (9a4, 9a5, 9a6, 14, 15) comprising a locking actuating unit (91a) for actuating the locking device (9a4, 9a5, 9a6, 14, 15), wherein the locking actuating unit (91a) requires an actuating action for actuation which is different from an actuating action for actuating the coupling device (9a). [14] Medical device (100) according to one of the preceding claims, further comprising a number of additional connection units (9a1, 9b1) provided on the device side for reversibly connecting the basic device (1a) to the housing unit (1b) without the user interface (2) being connected to the basic device (1a). [15] Medical device (100) according to one of the preceding claims, wherein the user interface (2) has a first electrical and / or signaling interface (20), and wherein the basic device (1a) has a corresponding second electrical and / or signaling interface (21), wherein the first interface (20) and the second interface (21) are connectable to establish an electrical and / or signaling connection. [16] Medical device (100) according to claim 15, wherein an orientation of the first interface (20) relative to the user interface (2) and / or an orientation of the second interface (21) relative to the base device (1a) is variable. [17] Medical device (100) according to claim 15 or 16, wherein the first interface (20) is designed as a connector (20) which is mounted floating in or on the user interface (2), and wherein the connector (20) is spring-loaded to provide a contact force on the connector (20) in the direction of the second interface (21).

Images