The present disclosure relates to a medical device system. Particularly, the present disclosure relates to a medical device system comprising a medical device and a base station for the medical device.

BACKGROUND

Medical devices in general are often exposed to harsh environments, including, but not limited to, body fluids (e.g., stomal output or exudate from a wound) and continued wear causing degradation of the medical device. Examples of such medical devices include ostomy appliances and wound dressings, and related devices, such as electronic medical devices configured to monitor such an ostomy appliance or wound dressing.

Stomal output often contains body fluids and visceral contents that are aggressive to both the skin of a user and to ostomy devices, these have a detrimental effect on the efficiency and integrity of the adhesive materials that are applied to attach the ostomy device to the user's skin surface. For users in general, safe, reliable and efficient ostomy devices are evidently highly desirable.

However, a particularly major and persistent concern of a large population of ostomists continues to be failure of the base plate adhesive attaching the ostomy appliance to the user's skin surface, because such failure almost inevitably leads to embarrassing and stigmatising leakage incidents. Such incidents in turn are known from several user interviews to lead to a reduced quality-of-life feeling. Adhesive failure of the base plate adhesive can result from various reasons. Most often, a leakage incident is caused by stomal output entering the interface formed between the proximal surface of the base plate and the user's skin, e.g. due to less-than-optimal attachment of the base plate to the skin arising from e.g. uneven skin surface or skin folds. This undesirable progression of stomal output "underneath" the adhesive leads to deterioration and/or weakening of the adhesive material carrying the weight and providing the seal of the ostomy appliance. Often such failure happens surprisingly fast and is only detectable for the user once the failure has already become so severe that leakage occurs, requiring immediate change of the ostomy appliance and possibly also of the user's clothes.

In other instances, the primary factor of adhesive failure is simply a question of how much time has elapsed since the base plate of the ostomy appliance was first applied to the user's skin surface. In addition to the output from the stoma itself, the peristomal skin surface continuously secretes some moisture (e.g. sweat). To mitigate this, most often adhesives of base plates for ostomy devices include hydrocolloid materials which are capable of absorbing high levels of moisture, thereby stabilizing the polymer matrix of the adhesive material and prolonging the lifetime ("wear time") of the base plate. However, eventually, the adhesion capability of the base plate cannot support the force exerted on the base plate from the load of the output collecting bag, and the appliance must be replaced.

As there can be considerable differences in the severity and/or speed by which adhesive failure and potentially leakage occur, which differences at least to some extent are correlated to various factors including those presented above, a mere indication that failure or leakage is imminent, or that it has already occurred, fails to represent a reliable and satisfactory solution to the problem of avoiding sudden embarrassing and stigmatising leakage incidents in ostomy appliances. In other words, the users of ostomy appliances could greatly benefit from an appliance solution which provides them with better guidance and options regarding how and - not least - how quickly to react to a beginning failure of or leakage from the adhesive of the base plate of the appliance.

More generally, ostomists and health care professionals alike would welcome improvements in ostomy devices to reduce or eliminate the occurrence of sudden leakage incidents.

Many of the above-discussed aspects are applicable to wound dressings and users thereof, where in particular exudate amount, pattern, and propagation are of interest. By monitoring such exudate amounts, patterns, or propagation, the use of the wound dressing can be optimised, such that it is ensured that the wound dressing is neither changed too early nor too late. Further, by optimising the use of the wound dressing, the healing of the wound can be optimised, thereby providing improved well-being to the user.

A problem exists for an electronic device, e.g. a monitor device for monitoring an ostomy appliance or a wound dressing, in balancing, sometimes conflicting, requirements between medical device classification and certification, waterproofing, simplicity, usability etc. Thus, solutions towards balancing these requirements are of great interest.

Although the following discussion in particular relates to a monitor device for use with an ostomy appliance or a wound dressing, additional or alternative uses are foreseen within the scope of the invention. SUMMARY

It is an object of the present disclosure to provide a medical device system comprising a base station and a medical device for being worn by a user, such as a monitor device for being connected to a sensor assembly. The monitor device may be provided to facilitate detection of risk of failure and/or risk of leakage with respect to an adhesive base plate of an ostomy appliance or the monitor device may be provided to facilitate detection of exudate propagation or patterns of wound dressings.

Furthermore, it is an object of the present disclosure to provide a medical device system, e.g. a base station and/or a monitor device, which is easy and intuitive to use, and which facilitates use and maintenance of the devices. Particularly, it is an object of the present disclosure to provide for easy and convenient use of the disclosed system, e.g. to avoid or reduce the occurrence of unintended or unsatisfactory situations.

Thus, the present disclosure relates to a medical device system and components thereof. Accordingly, a medical device system comprising a medical device and a base station is disclosed. BRIEF DESCRIPTION OF THE FIGURES

Embodiments of the disclosure will be described in more detail in the following with regard to the accompanying figures. The figures show one way of implementing the present invention and are not to be construed as being limiting to other possible embodiments falling within the scope of the attached claim set. Fig. 1 schematically illustrates an exploded view of an exemplary adhesive base plate,

Fig. 2 schematically illustrates an exploded view of an exemplary adhesive base plate,

Fig. 3 schematically illustrates part of an exemplary adhesive base plate with an electrode assembly, and an exemplary monitor device,

Fig. 4 is a schematic block diagram of an exemplary monitor device, Fig. 5 schematically illustrates an exemplary medical device system,

Fig. 6 schematically illustrates an exploded view of an exemplary base station, Fig. 7 schematically illustrates an exploded view of an exemplary medical device, and Fig. 8 shows a simplified block diagram of an exemplary base station.

DETAILED DESCRIPTION

In the following Detailed Description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "front," "back," "leading," "trailing," etc., is used with respect to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized, and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

It is to be understood that the features of the various exemplary embodiments described herein may be combined with each other, unless specifically noted otherwise.

Throughout this disclosure, the words "stoma" and "ostomy" are used to denote a surgically created opening bypassing the intestines or urinary tract system of a person. The words are used interchangeably, and no differentiated meaning is intended. The same applies for any words or phrases derived from these, e.g. "stomal", "ostomies" etc. Also, the solid and liquid wastes emanating from the stoma may be referred to as both stomal "output," "waste(s)," and "fluids" interchangeably. A subject having undergone ostomy surgery may be referred to as "ostomist" or "ostomate" - moreover, also as "patient" or "user". When applicable, "patient" or "user" may as well be used to describe a subject wearing a wound dressing. Flowever, in some cases "user" may also relate or refer to a health care professional (HCP), such as a surgeon or an (ostomy care) nurse or others. In those cases, it will either be explicitly stated, or be implicit from the context that the "user" is not the "patient" him- or herself.

In the following, whenever referring to proximal side of a device or part of a device, the referral is to the skin-facing side, when an ostomy appliance or wound dressing is worn by a user. Likewise, whenever referring to the distal side of a device or part of a device, the referral is to the side facing away from the skin, when an ostomy appliance or wound dressing is worn by a user. In other words, the proximal side is the side closest to the user, when the appliance is fitted on a user and the distal side is the opposite side - the side furthest away from the user in use.

When considering an ostomy appliance, the axial direction is defined as the direction of the stoma, when the appliance is worn by a user. Thus, the axial direction is generally perpendicular to the skin or abdominal surface of the user. The latter definition further applies when considering wounds/wound dressings.

The radial direction is defined as transverse to the axial direction that is transversely to the direction of the stoma, i.e. "across" the distal/proximal surface of the base plate. In some sentences, the words "inner" and "outer" may be used. These qualifiers should generally be perceived with respect to the radial direction, such that a reference to an "outer" element means that the element is farther away from a centre portion of the ostomy appliance than an element referenced as "inner". In addition, "innermost" should be interpreted as the portion of a component forming a centre of the component and/or being adjacent to the centre of the component. In analogy, "outermost" should be interpreted as a portion of a component forming an outer edge or outer contour of a component and/or being adjacent to that outer edge or outer contour.

The use of the word "substantially" as a qualifier to certain features or effects in this disclosure is intended to simply mean that any deviations are within tolerances that would normally be expected by the skilled person in the relevant field.

The use of the word "generally" as a qualifier to certain features or effects in this disclosure is intended to simply mean - for a structural feature: that a majority or major portion of such feature exhibits the characteristic in question, and - for a functional feature or an effect: that a majority of outcomes involving the characteristic provide the effect, but that exceptionally outcomes do no provide the effect.

The use of the word "essentially" as a qualifier to certain structural and functional features or effects in this disclosure is used for emphasizing what is the most important focus of something or fact about something (i.e. a feature may have or fulfil a variety of effects, but when the disclosure discusses one effect as being "essentially" provided, this is the focus and the most important effect in relation to the disclosure).

Throughout the disclosure, the use of the terms "first", "second", "third", "fourth", "primary", "secondary", "tertiary" etc. does not imply any particular order or importance but are included merely to identify individual elements. Furthermore, the labelling of a first element does not imply the presence of a second element and vice versa.

Disclosed is a medical device, a base station, and a medical device system comprising the disclosed medical device and base station.

The medical device may be configured for being worn by a user. For example, the medical device may comprise an appliance interface configured for being coupled to and/or communicating with a patient worn device. For example, the medical device may be a monitor device for being coupled to an adhesive base plate or a wound dressing, and/or to an electrode assembly for being coupled to an adhesive base plate or a wound dressing. In embodiments, the disclosed medical device system may additionally comprise the adhesive base plate, e.g. comprising a backing layer, a first adhesive layer, an electrode assembly comprising a plurality of electrodes, and a monitor interface configured for coupling the adhesive base plate to the medical device. In embodiments, the disclosed medical device system may additionally comprise the wound dressing, e.g. comprising a backing layer, an absorbent core layer, a first adhesive layer, an electrode assembly comprising a plurality of electrodes, and a monitor interface configured for coupling the wound dressing to the medical device. The absorbent core layer may be arranged between the backing layer and the first adhesive layer of the wound dressing.

The medical device may be considered an electronic medical device, i.e. the medical device comprises electronics configured to perform certain tasks, such as monitoring/controlling an electrode assembly as exemplified above. The electrode assembly may comprise at least one sensor for sensing a characteristic, such as presence of liquid and/or moisture.

The medical device comprises a rechargeable battery for powering the medical device and a base interface comprising a plurality of device terminals including a first device terminal, a second device terminal and a third device terminal. The plurality of device terminals may include a fourth device terminal. The medical device may comprise a wireless communication interface for wirelessly communicating with an accessory device, such as a smartphone or a tablet.

The medical device may comprise a medical device housing, e.g. enclosing the components of the medical device. The housing may be watertight and/or may form a watertight enclosure for the internal components of the medical device, thereby protecting the internal components of the medical device from the potentially harsh environments and everyday use, e.g. showering. The medical device may comprise electronic circuitry, e.g. including a processing unit and/or one or more interfaces, e.g. including the wireless communication interface. The medical device may comprise a memory, e.g. for storing ostomy or wound data and/or parameters data based on the ostomy or wound data. The memory may be connected to the processing unit and/or to the one or more interfaces, such as the wireless communication interface.

The base station comprises an input button for receiving one or more touch inputs including a first touch input, a power unit for receiving power for powering the base station, and a device interface for coupling to the base interface of the medical device. The device interface comprises a plurality of base terminals for being coupled to the plurality of device terminals including a first base terminal for being coupled to the first device terminal, a second base terminal for being coupled to the second device terminal and a third base terminal for being coupled to the third device terminal. The plurality of base terminals may include a fourth base terminal configured to be coupled to the fourth device terminal.

The plurality of base terminals comprises a base charging pair for being coupled to a device charging pair of the plurality of device terminals. The base charging pair may comprise the first base terminal and the second base terminal. The device charging pair may comprise the first device terminal and the second device terminal.

The plurality of base terminals comprises a first base signal pair for being coupled to a first device signal pair of the plurality of device terminals. The first base signal pair may comprise the first base terminal and the third base terminal. The first device signal pair may comprise the first device terminal and the third device terminal.

The base station is configured to provide a charging voltage between/across the base charging pair for charging the rechargeable battery of the medical device. The charging voltage may between 3 and 15 volts, such as between 5 and 10 volts, such as 6.5 volts. The base station is further configured to, in accordance with receipt of the one or more touch inputs, alter a first base signal between the first base signal pair.

The medical device is configured to detect a first device signal between the first device signal pair. The medical device is further configured to, in accordance with the first device signal being indicative of the input button receiving the first touch input, initiate a first mode of the medical device. The first mode may be a pairing mode of the wireless communication interface, e.g. wherein the medical device. Alternatively, the first mode may be a data transmission mode of medical device, a charging mode of the medical device, an on-state of the medical device, or an off-state of the medical device. In accordance with the medical device being in an off-state the first mode may be an on-state of the medical device, and in accordance with the medical device being in an on-state the first mode is an off-state of the medical device.

Thereby is provided a medical device system capable of controlling functionalities of the medical device by means of a button arranged in the base station. Thereby, the medical device can be provided without buttons, such as to provide a medical device being particularly watertight, or to reduce the complexity of the electronics provided in the medical device. Thus, the base station and the medical device are configured to work in cooperation in order to alter/control functionalities of the medical device as such.

The first device signal pair and/or the first base signal pair may comprise a terminal, such as the third device terminal and/or the third base terminal, not forming part of the device charging pair and/or the base charging pair. Thereby, a signal, such as the first device signal and/or the first base signal need not influence the charging voltage and the charging of the rechargeable battery.

The one or more touch inputs to be received by the input button may include a second touch input. The first touch input and the second touch input may be differentiated, e.g. by their duration. For example, the first touch input may comprise holding the touch on the input button for less than a threshold duration. The second touch input may comprise holding the touch on the input button for more than the threshold duration. For example, the first touch input may be a touch held on the input button for more than a first primary threshold duration and less than a first secondary threshold duration. The second touch input may be a touch held on the input button for more than the first secondary threshold duration.

The medical device may be configured to, in accordance with the first device signal being indicative of the input button receiving the second touch input, initiate a second mode of the medical device. The second mode may be a reset mode of the medical device, e.g. wherein the medical device is reset to factory settings and/or wherein a storage memory of the medical device is erased, or the second mode may be a mode selected from the previously listed modes disclosed in relation to the first mode.

The power unit of the base station may comprise a socket, such as a USB type C socket, for receiving a connector for delivering power for powering the base station. Rated input power voltage of the input voltage of the power unit may be between 2 and 15 volts, such as between 3 and 10 volts, such as 5 volts. The charging voltage may be more than the rated input power voltage. The power unit may comprise a safety circuit configured to, in accordance with an input voltage of the power unit being above a voltage safety threshold, discontinue powering the base station. The voltage safety threshold may be between 5 and 15 V, such as between 6 and 10 V, such as 6.5 V. Thereby, the base station may satisfy requirements for medical equipment by limiting a possible erroneous voltage output to less than the voltage safety threshold.

The base station may comprise an indicator light. The indicator light may be configured to provide a visual indication based on a second base signal between a second base signal pair of the plurality of base terminals. The second base signal pair is configured to be coupled to a second device signal pair of the plurality of device terminals. The second base signal pair may comprise the first base terminal and the fourth base terminal. The second device signal pair may comprise the first device terminal and the fourth device terminal. The medical device may be configured to control the indicator light by altering a second device signal between the second device signal pair, e.g. such that the second base signal is altered when the second device signal pair is coupled to the second base signal pair. For example, the medical device may be configured to alter the second device signal (and the second base signal) according to an estimated charge of the rechargeable battery. Alternatively, the medical device may be configured to alter the second device signal (and the second base signal) according to a pairing status of the wireless communication interface. Thus, the medical device may be configured to control the indicator light of the base station. Thereby, characteristics such as charging status of the medical device can be communicated to the user through the base station. Thereby, the medical device does not need to comprise such indicator light.

The device interface of the base station may comprise a primary magnetic element. The base interface of the medical device may comprise a secondary magnetic element. The primary magnetic element and the secondary magnetic element may be configured to provide a magnetic attractive force between the base station and the medical device.

Fig. 1 schematically illustrates an exploded view of an exemplary adhesive base plate 4 of an ostomy appliance. The adhesive base plate 4 comprises a first adhesive layer 200, i.e. a first layer of an adhesive material. During use, a proximal surface of the first adhesive layer 200 adheres to the user's skin in the peristomal area and/or to additional seals, such as sealing paste, sealing tape and/or sealing ring. The adhesive base plate 4 optionally comprises a second adhesive layer 202, i.e. a second layer of an adhesive material, e.g. also denoted rim adhesive layer. The second adhesive layer 202 may be of a different adhesive material than the first adhesive layer 200. The adhesive base plate 4 may comprise a release liner 206, which may be peeled off by the user prior to applying the adhesive base plate 4 to the skin. The adhesive base plate 4 comprises a backing layer 208. The backing layer 208 is a protective layer protecting the adhesive layers, such as the first adhesive layer 200 and/or the second adhesive layer 202 from external strains and stress during use. Furthermore, the backing layer 208 also covers the adhesive layers, such as the first adhesive layer 200 and/or the second adhesive layer 202, such that the adhesive layers 200,202 does not adhere to clothes worn on top of the adhesive base plate 4.

The adhesive base plate 4 optionally comprises a coupling ring 209 for coupling an ostomy pouch to the adhesive base plate 4. Alternatively, e.g. for a one-part ostomy appliance, an ostomy pouch may be directly fastened to the adhesive base plate 4.

Fig. 2 schematically illustrates an exploded view of an exemplary adhesive base plate 4' of an ostomy appliance, wherein the adhesive base plate 4' is fitted with an electrode assembly 204, such as to enable electronic detection of increased risk of leakage. The adhesive base plate 4', like the adhesive base plate 4 of Fig. 1, comprises a first adhesive layer 200, an optional second adhesive layer 202. The adhesive base plate 4' may comprise a release liner 206. The adhesive base plate 4' may comprise a backing layer 208.

The adhesive base plate 4' comprises a plurality of electrodes 216 arranged in an electrode assembly 204. The electrode assembly 204 is arranged between the first adhesive layer 200 and the second adhesive layer 202. The electrode assembly 204 optionally comprises a support layer 214. The electrodes 216 may be formed on a proximal side of the support layer 214, such as by printing of conductive ink on the proximal side of the support layer 214. The electrode assembly 204 optionally comprises a masking element 218, e.g. covering or overlapping with parts of the electrodes 216 when seen in the axial direction, e.g. from a proximal side of the electrodes 216. The electrode assembly 204 forms a plurality of terminals 212 configured to form electrical connections with respective terminals of a monitor device, configured to be mechanically and/or electronically connected to the adhesive base plate 4'.

The adhesive base plate 4', as illustrated, is provided with an integrated electrode assembly 204. Flowever, alternatively, the electrode assembly 204 may be provided as an additional device to be fitted to a (normal) adhesive base plate without such electrode assembly, such as the adhesive base plate 4 of Fig. 1. For example, an electrode assembly 204 may be attached to the adhesive side of the adhesive base plate 4, such as between the skin of the user and the first adhesive layer 200 of the adhesive base plate 4.

Fig. 3 schematically illustrates part of an exemplary adhesive base plate 4, 4' with an electrode assembly, and an exemplary monitor device 6. The adhesive base plate 4, 4' comprises a coupling element 210, to be received by the monitor device 6. The monitor device 6 comprises a monitor device housing 8. The monitor device 6 comprises an interface opening 12, e.g. in a first rim part of the monitor device 6. The interface opening 12 is configured to receive the coupling element 210, such that the coupling element of the sensor assembly may be received by an appliance interface of the monitor device 6 through the interface opening 12.

The plurality of terminals 212 of the adhesive base plate 4, 4' may be provided on the coupling element 210. A plurality of corresponding terminals of the monitor device 6 may be provided inside the opening 12, such as to connect to the plurality of terminals 212 of the adhesive base plate 4,

4' when the monitor device 6 is coupled to the adhesive base plate 4, 4'.

The monitor device 6 may comprise a locking mechanism configured to lock the monitor device 6 in a coupled position with the adhesive base plate 4, 4'. The locking mechanism of the monitor device 6 may be configured to cooperate with the coupling element 210. The locking mechanism may comprise a locking element 14, e.g. a first button or a latch as illustrated. The locking element 14 may further comprise a locking element protrusion 16. The locking element 14 may be deflectable in a first direction and the locking element protrusion 16 may be configured for the user to pull/push the locking element 14 in an opposite second direction.

Fig. 4 is a schematic block diagram of an exemplary monitor device 6, such as the monitor device 6 as exemplified in relation to Fig. 3. The monitor device 6 comprises a monitor device housing 8. The monitor device 6 comprises electronic circuitry, including a processing unit 101 and one or more interfaces. The one or more interfaces includes an appliance interface 102 and an accessory interface 104. The monitor device 6 comprises memory 106 for storing ostomy data and/or parameters data based on the ostomy data. The memory 106 is connected to the processing unit 101 and/or the appliance interface 102.

The appliance interface 102 is configured for electrically and/or mechanically connecting the monitor device 6 to the ostomy appliance, such as to an electrode assembly of the ostomy appliance and/or an adhesive base plate comprising the electrode assembly. The appliance interface 102 may comprises a plurality of terminals 107 for forming electrical connections with respective terminals of the electrode assembly. The appliance interface 102 comprises a first terminal 108, a second terminal 110, a third terminal 112. The appliance interface optionally comprises a fourth terminal 114, a fifth terminal 116 and/or a sixth terminal 118. Alternatively, the appliance interface 102 may be configured for forming a wireless coupling with the electrode assembly. The monitor device 6 comprises a device power unit 121 for powering the monitor device and active components thereof, i.e. the device power unit 121 is connected to the processing unit 101, the appliance interface 102, the accessory interface 104, and memory 106. The device power unit 121 comprises a rechargeable battery and charging circuitry. The charging circuitry is connected to the battery and terminals of the appliance interface 102 for charging the battery via terminals of the appliance interface 102.

The accessory interface 104 of the monitor device 6 is configured for connecting the monitor device 6 to one or more accessory devices such as a smart phone. The accessory interface 104 may comprise a wireless communication interface for wirelessly communicating with an accessory device. For example, the accessory interface 104 comprises an antenna 122 and a wireless transceiver 124 configured for wireless communication with accessory device(s). Optionally, the accessory interface 104 comprises a loudspeaker 126 and/or a haptic feedback element 128 for provision of respective audio signal and/or haptic feedback to the user.

The monitor device 6 may comprise a sensor unit 140 connected to the processing unit 101. The sensor unit 140 comprises a temperature sensor for feeding temperature data to the processor and a G-sensor or accelerometer for feeding acceleration data to the processing unit 101.

Fig. 5 schematically illustrates an exemplary medical device system 2 comprising a medical device 5, here illustrated as the exemplary monitor device 6 as described with respect to the previous figures. The medical device 5 is configured to be worn by a user, e.g. the monitor device 6 is configured to be coupled to an adhesive base plate being worn by an ostomist or to be coupled to a wound dressing. Thus, the medical device 5 may comprise an appliance interface, as described above, configured for being coupled to and/or communicating with a patient worn device, such as an adhesive base plate or a wound dressing. The medical device system 2 may comprise an adhesive base plate, such as the adhesive base plate 4, 4' of the previous figures, or wound dressing comprising an electrode assembly.

The medical device system 2 comprises a base station 300. An exploded view of the exemplary base station 300 is shown in Fig. 6. The base station 300 comprises an input button 306 for receiving touch inputs. The input button 306 may be covered by a button cover 307, e.g. provided in a flexible material, e.g. to provide a watertight input button. The base station 300 further comprises a power unit 308 (see Fig. 6) for receiving power for powering the base station 300.

The power unit 308 may comprise a socket 309, such as a USB type C socket, for receiving a connector 310 for delivering power for powering the base station 300. The connector 310 may be configured to be connected to a standard USB-port on a PC or be connected to a USB power adaptor. The base station 300 further comprises a base housing 316. As illustrated in Fig. 6, the base housing may comprise upper and lower housing parts forming the base housing 316.

An exploded view of the exemplary medical device 5 is further schematically illustrated in Fig. 7. The medical device 5 comprises a base interface 20 comprising a plurality of device terminals 22 including a first device terminal, a second device terminal, a third device terminal, and an optional fourth device terminal. The device terminals 22 are configured to be coupled to respective base terminals 304 of the base station 300. The medical device 5 comprises a rechargeable battery 24 for powering the medical device 5, and a wireless communication interface for wirelessly communicating with an accessory device.

The base station 300 comprises a device interface 302 (see Fig. 5) for coupling to the base interface 20 of the medical device 5. The device interface 302 comprises a plurality of base terminals 304 for being coupled to the plurality of device terminals 22 of the medical device 5. The base terminals 304 include a first base terminal for being coupled to the first device terminal of the medical device 5, a second base terminal for being coupled to the second device terminal of the medical device 5, and a third base terminal for being coupled to the third device terminal of the medical device 5. In the illustrated example, the base terminals 304 include a fourth base terminal for being coupled to the fourth device terminal of the medical device 5. The plurality of base terminals 304 comprises a plurality of pairs of terminals for being coupled to corresponding pairs of terminals of the plurality of device terminals 22. For example, the plurality of base terminals 304 comprises a base charging pair for being coupled to a device charging pair of the medical device 5, and the base station is configured to provide a charging voltage between the base charging pair for charging the rechargeable battery 24 of the medical device 5. Furthermore, the plurality of base terminals 304 comprises a first base signal pair for being coupled to a first device signal pair of the medical device 5. In accordance with receipt of a touch input via the input button 306, the base station may alter a first base signal between the first base signal pair. For example, a voltage difference between the first base signal pair of the plurality of base terminals 304 may be set to 2 V if the user press and hold the input button 306 for a predetermined amount of time, and may be set to 4 V if the user press and hold the input button 306 for a second predetermined amount of time, etc.

The medical device 5 may be configured to detect the voltage difference between the first base signal pair of the plurality of base terminals 304 and/or between the first device signal pair of the plurality of device terminals 22 coupled to the first base signal pair. According to the detected voltage difference, the medical device 5 may activate a predefined mode in accordance with the detected voltage difference. Thereby, a touch input on the input button 306 may trigger different functionalities of a medical device 5 coupled to the base station 300. Thereby, means are provided for manipulating/controlling certain functionalities of the medical device 5 by means of the base station 300. Thereby, the medical device 5 can be provided without input buttons, e.g. to provide a particularly waterproof housing. In other words, the base station 300 allows for controlling certain functionalities of the medical device 5, whereby the medical device 5 can be provided without such means for controlling its functionalities.

For example, the medical device 5 may be configured to detect a first device signal between the first device signal pair, and in accordance with the first device signal being indicative of the input button receiving a first touch input (e.g. touch and hold for more than a first primary threshold duration and less than a first secondary threshold duration), the medical device 5 may initiate a first mode. For example, the first mode may be a pairing mode of the wireless communication interface of the medical device, e.g. in the pairing mode the medical device 5 may be discoverable via Bluetooth by other devices, such as an accessory device. Alternatively, the first mode may be a data transmission mode, e.g. wherein the medical device 5 offloads stored data, such as stored monitor data, to an accessory device. Alternatively, the first mode may be a charging mode of the medical device 5, e.g. wherein the medical device 5 is being charged. Alternatively, the first mode may be an on-state of the medical device or an off-state of the medical device 5.

Alternatively or additionally, the first device signal may be indicative of the input button receiving a second touch input (e.g. touch and hold for more than the first secondary threshold duration), and in accordance with the first device signal being indicative of the input button receiving the second touch input, the medical device 5 may initiate a second mode of the medical device 5. The second mode may be a reset mode, e.g. wherein the medical device is reset to factory settings and/or wherein a storage memory of the medical device is erased. Alternatively, the second mode may be one of the modes described in relation to the first mode.

The base station 300 may comprise an indicator light 312. The indicator light 312 may be configured to provide a visual indication based on the first base signal, or a second base signal between a second base signal pair of the plurality of base terminals 304. The second base signal pair is configured to be coupled to a second device signal pair of the plurality of device terminals 22 of the medical device 5. The medical device 5 may be configured to control the indicator light 312 by altering a second device signal between the second device signal pair. For example, the medical device 5 may be configured to alter the second device signal, and thereby the output of the indicator light 312, according to an estimated charge of the rechargeable battery, e.g. to indicate remaining battery level. For example, the output of the indicator light 312 may be altered by altering the colour and/or the frequency of the output by the indicator light.

The device interface 302 of the base station may comprise a primary magnetic element 314. The base interface of the medical device 5 may comprises a secondary magnetic element 28. Thereby a magnetic attractive force may be provided between the base station 300 and the medical device 5, such as to aid in correctly positioning the medical device 5 on the base station 300, and/or to maintain the medical device 5 in the correct position on the base station 300.

Fig. 8 shows a simplified block diagram of an exemplary base station 300, such as the base station 300 of the previous figures.

The base station 300 comprises, as part of a device interface for coupling the base interface of the medical device, a plurality of base terminals 304 including a first base terminal 304A, a second base terminal 304B, a third base terminal 304C, and a fourth base terminal 304D.

The base station 300 comprises a power unit 308 for receiving power, e.g. via USB type C connection, for powering the base station 300. The power unit 308 comprises a safety circuit 318. The safety circuit 318 is configured to discontinue power to the base station, in case an input voltage of the power unit 308 exceeds a voltage safety threshold. The voltage safety threshold may be between 5 and 15 V, such as between 6 and 10 V, such as 6.5 V.

The first base terminal 304A may be a ground terminal, e.g. the first base terminal 304A may be connected to a ground terminal of the power unit 308.

The first base terminal 304A and the second base terminal 304B forms a base charging pair for being coupled to a device charging pair of the plurality of device terminals, such as to allow charging of the rechargeable battery of the medical device.

The first base terminal 304A and the third base terminal 304C forms a first base signal pair for being coupled to a first device signal pair of the plurality of device terminals. The base station comprises an input button 306 for receiving touch inputs, resulting in a change of voltage difference between the first base signal pair.

The base station 300 comprises an indicator light 312, e.g. an LED. The indicator light is triggered based on a voltage difference between a second base signal pair of the plurality of base terminals 304 formed between the first base terminal 304A and the fourth base terminal 304D. Flence, the medical device being connected to the base station may output a voltage, such as the voltage of the second base terminal 304B on the fourth base terminal 304D, in which case the indicator light 312 will light up. Thus, the medical device is configured to control the indicator light 312 by altering the voltage between a second device signal pair being coupled to the second base signal pair.

Although the present disclosure is mainly focused towards a medical device, it is noted that the method and the principles as described herein may be used alternatively or additionally in a nonmedical device, i.e. a device (not necessarily a medical device) comprising the features as described with respect to the mentioned medical device is also disclosed. Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and/or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to cover any adaptations or variations of body side members for ostomy appliances as discussed herein. Therefore, it is intended that this invention be limited only by the claims and the equivalents thereof.

REFERENCES

2 system

4, 4' adhesive base plate

5 medical device

6 monitor device 8 housing 12 opening 14 locking element 16 locking element protrusion 20 base interface 22 device terminals 24 battery 26 wireless communication interface 28 secondary magnetic element 101 processing unit 102 appliance interface 104 accessory interface 106 memory

107 terminals

108 first terminal of monitor device 110 second terminal of monitor device 112 third terminal of monitor device 114 fourth terminal of monitor device 116 fifth terminal of monitor device 118 sixth terminal of monitor device 121 device power unit 122 antenna 124 wireless transceiver 140 sensor unit 200 first adhesive layer 202 second adhesive layer 204 electrode assembly 206 release liner 208 backing layer 209 coupling ring

210 coupling element 212 terminals 214 support layer 216 electrodes

218 masking element 300 base station 302 device interface 304 base terminals 304A first base terminal

304B second base terminal 304C third base terminal 304D fourth base terminal 306 input button 307 button cover

308 power unit

309 socket

310 connector 312 indicator light 314 primary magnetic element

316 base housing 318 safety circuit