Medical product, housing for the medical product, and cover for the housing

Abstract

The invention relates to a medical product (1) which is provided and designed for a sterilization process, comprising: a housing (2) which forms a battery-receiving compartment that can be loaded with a battery unit (12) via an access point; and a cover (4) which is designed and configured to close the access point when the cover is engaged with the housing. The medical product also comprises a mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) which is provided on the housing and / or the cover and is designed to display the current loading state of the battery-receiving compartment in a visually and / or haptically recognizable manner from outside the medical product even when the access point is closed. The invention further relates to a housing for the medical product and to a cover for the housing.

Description

[0001] Medical device, housing for the medical device and cover for the housing

[0002] Description

[0003] Technical area

[0004] The present disclosure relates to a medical product. Furthermore, a housing for the medical product and a cover for the housing are disclosed. A mechanical display device is provided on the housing and / or the cover and is configured to visually and / or haptically indicate the current charge status of a battery compartment formed by the housing from outside the medical product, even when the access is closed.

[0005] Background of the invention

[0006] Batteries, especially accumulators, are becoming increasingly popular in medical technology. However, no battery meets the requirements for resistance to sterilization with hot steam at high temperatures in the range of 134°C. As a result, the sterile use of batteries in the operating room is currently not possible. The increase in battery performance through the use of lithium-ion technology also entails an increased risk of fire and explosion due to the reactivity of lithium when batteries are subjected to sterilization with hot steam. Furthermore, this risk also exists with empty or defective batteries.

[0007] Accordingly, the battery must be removed from a medical device prior to reprocessing and sterilization to prevent it from being subjected to a reprocessing cycle (CSSD, RUMP). However, since a non-sterile battery is sealed within the medical device during use to protect the patient from contamination, there is a significant risk that personnel may not realize that a battery is still present in the medical device during the reprocessing cycle, e.g., after surgery. Consequently, it may happen that the battery contained within the medical device is still subjected to steam sterilization.

[0008] State of the art

[0009] Known solutions that indicate the charge level through an optical display when batteries are inserted or when the medical device is briefly activated, e.g., by activating a predetermined number of light-emitting elements, are unsatisfactory, as no display is possible when the battery is discharged or empty. In other words, the state of the art provides for the quasi-indirect identification of the presence of a medical product with a rechargeable battery by emitting a signal on an electrical optical display. The problem with such indirect information arises, however, when the battery is empty and the optical display therefore becomes inoperative.

[0010] Brief description of the present disclosure

[0011] It is therefore an object of the disclosure to solve or at least mitigate the above-mentioned problem. In particular, a technique is to be provided that enables reliable detection of whether a battery, in particular a rechargeable battery, is incorporated into a medical product.

[0012] This object is achieved by a medical product, a housing, and a cover having the features according to the independent claims. Advantageous embodiments are the subject of the dependent claims and / or emerge from the following description and / or the accompanying figures. It should be noted at this point that the developments according to the current dependent claims can also be claimed individually.

[0013] A medical product according to the disclosure is intended and designed for a sterilization process. The medical product can be a handheld medical instrument. The medical product comprises a housing that forms a battery receiving compartment that can be loaded with a battery unit (battery block) via an access (loading access). The battery unit can be accommodated in the battery receiving compartment, preferably with little or almost no play. The battery unit (battery block) can comprise a control unit (electrical control) for the medical product or for its motor unit (drive motor). The battery unit also has a battery / rechargeable battery, preferably a secondary battery, such as a lithium-ion battery. The medical product further comprises a cover (flap, hood, closure, cap, etc.) that is designed and configured to close the access when engaged with the housing.For this purpose, the lid preferably completely encompasses the housing around the access. When the lid is closed, the lid is preferably detachably / openably engaged with the housing. The medical product further comprises a mechanical display device provided on the housing and / or the lid and designed to visually and / or haptically display the current loading status of the battery compartment from outside the medical product, even when the access is closed. This makes it possible to reliably detect the loading status visually and / or haptically, thus avoiding sterilization of the medical product in which the battery unit is housed.

[0014] The mechanical display device can be provided and configured to provide a visually and / or haptically recognizable display of the current charge level of the battery compartment mechanically, i.e., independently of an electrical power supply, even without the provision of electrical power. This enables a reliable display of the charge level even when the battery is discharged. Consequently, the risk of sterilization of the medical device with the battery unit installed is reduced.

[0015] The mechanical indicator device can be or have a viewing window through which the battery compartment can be visually inspected from outside the medical device. This allows for easy checking of the charge status. Further preferably, an indicator, such as a color marking, can be attached to the battery unit and visible through the viewing window.

[0016] The mechanical display device can have a display element that is visually and / or haptically recognizable from outside the medical product and a trigger section of the display element and / or a trigger mechanism that is at least partially arranged in the battery compartment and operatively connected to the display element. Accordingly, the display element can indicate a loading status. The display element is actuated or triggered by the trigger section and / or the trigger mechanism. For example, the display element can enable different color markings, e.g. green for not loaded and red for loaded. The display element can protrude from the housing and / or the lid for the purpose of haptic detection when loaded with the battery unit.

[0017] The trigger section of the display element and / or the trigger mechanism can extend at least partially into a loading / removal path of the battery unit, such that the trigger section of the display element and / or the trigger mechanism is actuated by the loading / removal process of the battery unit itself. Consequently, the trigger section and / or the trigger mechanism enable automatic actuation of the display element, thus enabling a reliable display of the charging status.

[0018] The (purely mechanical) display element can be a plunger (for example in the form of a pin, a tongue, a flag, etc.) to implement the mechanical display or can consist of such a plunger. The plunger can be designed and configured such that it protrudes or projects from the housing and / or the cover when a battery unit is accommodated in the battery compartment. For this purpose, the plunger or a trigger section of the plunger can be displaced or shifted to the outside of the housing and / or the cover by the battery unit accommodated in the battery compartment. The protrusion of the plunger enables a reliable visual and haptic display. Alternatively, the display element can also be a flat, plate-like, or shell-like section of the cover or the housing, for example a section of a base surface orBase plate of the lid or even substantially an entire base plate of the lid. The flat, plate-like, or shell-like section can be extendable and / or retractable with respect to a main section of the lid (lid base body) or the housing (housing base body), i.e. it can protrude or protrude with respect to the rest of the housing or lid, as well as be flush with the rest of the housing or lid, or be accommodated in the rest of the housing or lid for a flush fit. In this case, a plunger can be directly or indirectly coupled to such a display element. In the case of a direct coupling, for example by fixing the plunger to the flat, plate-like, or shell-like section, the plunger or a trigger section of the plunger can be displaced or moved by the battery unit accommodated in the battery receiving compartment, wherein the displacement orDisplacement of the plunger due to the provided direct coupling directly leads to a displacement or shifting of the display element, in particular the flat, plate-like, or shell-like section, towards the outside of the housing and / or the cover. In the case of an indirect coupling, the plunger or a trigger section of the plunger can be displaced or shifted by the battery unit accommodated in the battery compartment, wherein the displacement or shifting of the plunger due to the provided indirect coupling indirectly leads to a displacement or shifting of the display element, in particular the flat, plate-like, or shell-like section, towards the outside of the housing and / or the cover.

[0019] Furthermore, the trigger section can be a plate that is displaceable or slidable relative to a wall of the housing and / or the cover, in particular parallel. The plate can be formed integrally with the plunger. Alternatively, the plate can engage with the plunger. If the plate is arranged in the cover, the plate can be congruent with the access in order to reliably close the access within the cover. In this case, the plate can also be displaced or slid to the outside of the housing and / or the cover instead of the plunger or in addition to it by the battery unit accommodated in the battery compartment.

[0020] The trigger mechanism can be or comprise an elastic element. The display element, e.g. the plunger, can then be pre-tensioned towards the battery compartment by the elastic element. Preferably, the elastic element can be a spring. More preferably, at least one conical spiral spring can be used for pre-tensioning. Conical spiral springs have the advantage that they are highly compressible. The pre-tensioning ensures that the display element, e.g. the plunger, only projects from the housing / cover when the battery unit is inserted, thus preventing an incorrect display when the battery unit is not present. The trigger mechanism can also comprise a plurality of elastic elements, in particular springs, the effect of which is coordinated with one another in such a way that the display element is displaced or positioned towards the outside of the housing and / or the cover when the battery unit is provided or arranged in the battery compartment.is displaced, and that the indicator element is not displaced or shifted to the outside of the housing and / or the cover when the battery unit is not provided or arranged in the battery compartment. The trigger mechanism can also have other elements such as a pressure plate or a guide screw. Furthermore, if the plunger is not the indicator element but is indirectly coupled to the indicator element, the plunger can also be part of the trigger mechanism.

[0021] The indicator element can be located in the lid. This offers the advantage that the lid can be retrofitted with the indicator element cost-effectively on existing products. Using the plunger also ensures that the medical product cannot be placed on the lid without tipping over, thus preventing the indicator element from being accidentally covered.

[0022] A dimension of the plate can correspond to an edge surrounding the access and formed by the housing. Consequently, the access can be reliably closed within the lid. A sealing element, which has the dimension of the plate and thus of the edge around the access, can be arranged on a side of the plate facing the battery compartment. The sealing element can then be arranged between the edge and the plate when the lid is closed. This ensures a good sealing effect. The sealing element can allow a different degree of compression. In the event that no battery unit is accommodated in the housing, the sealing element can be more strongly compressed, for example due to the prestress. If the battery unit is accommodated in the housing and the plunger or the plate is displaced towards the outside of the lid, the sealing element can be less strongly compressed.The sealing element can be made of silicone. The plunger and the plate can be designed so that the plate is not displaced too far toward the outside of the lid when the battery unit is inserted, ensuring contact between the sealing element and the plate and the edge even when the battery unit is inserted.

[0023] The plunger can extend through the sealing element. Consequently, the plunger can come into contact with the battery unit, so that it and / or the plate is displaced or shifted towards the outside of the lid. Consequently, a reliable mechanical display towards the outside is ensured. Alternatively, in the case where not the plunger but a display element directly or indirectly coupled to the plunger is provided, for example in the form of a plate-like, planar, or shell-like section, a displacement or shifting of the display element towards the outside of the lid is carried out, enabled, or released by the plunger, thus correspondingly also ensuring a reliable mechanical display towards the outside.

[0024] In this design, the plunger can engage around the sealing element or engage behind the sealing element in the direction of the battery compartment and enclose it between itself and the plate. Consequently, a reliable seal of the battery compartment is achieved in the region of the plunger. The battery unit can have a control unit and a light-emitting element. The light-emitting element can be a light-emitting diode. The control unit can be designed and configured such that it switches on the light-emitting element when the battery unit is accommodated in the battery compartment. In this case, the display device can be or have a viewing window or light guide. The viewing window can be arranged in the cover or the housing separately from the plunger. Preferably, the viewing window can be formed through the plunger along its direction of extension.The viewing window can be made of Plexiglas and inserted into a hole made through the plunger and glued to it. Consequently, the viewing window has a great length, preventing germs from escaping from the battery compartment along a contact surface between the plunger and the viewing window. The light-emitting element can then be arranged in the region of the viewing window, so that light emitted by the light-emitting element passes through the viewing window to the outside of the housing and / or the lid. The light-emitting element and the viewing window can be arranged axially. It can also be provided that the light emitted by the light-emitting element passes through the viewing window and a fluorescent plate to the outside of the housing and / or the lid. The fluorescent plate can be the outwardly projecting display element.Consequently, a visual display of the display device is enhanced by the emission of light.

[0025] According to the disclosure, the display element can be a flat or plate-like or shell-like section of the cover or the housing, preferably a plate, particularly preferably a, in particular fluorescent, base plate of the cover.

[0026] The display element can be coupled directly or indirectly to a plunger. If the plunger is the display element or is directly coupled to the display element, the plunger or the display element can be damaged if the display element is impacted or if the display element strikes a surface. Against this background, an indirect coupling of the plunger to the display element, in particular in combination with an impact protection mechanism or an impact protection device for resiliently absorbing an impact of the display element or an impact on the display element, is particularly preferred according to the disclosure.

[0027] The plunger can be provided and configured to be displaced or shifted by a battery unit accommodated in a battery receiving compartment, wherein the displacement or shifting of the plunger indirectly leads to a displacement or shifting of the display element towards the outside of the housing or the cover, in particular enabling the displacement or shifting of the display element towards the outside.

[0028] A particularly preferred embodiment is characterized in that the displacement or shifting of the plunger by the battery unit accommodated in the battery receiving compartment leads to a displacement or shifting of a pressure plate and to a compression of a preferably central, elastic spring element, wherein a guide screw which is movable relative to the pressure plate and is firmly connected to the display element is accommodated in a through-bore of the pressure plate, and wherein the displacement or shifting of the pressure plate and the compression of the elastic spring element releases a travel or shifting path of the display element and the guide screw, wherein the displacement or shifting of the display element and the guide screw is brought about by at least one further elastic spring element.

[0029] An optionally provided impact protection mechanism or an provided impact protection device for resiliently absorbing an impact of the display element or an impact on the display element preferably has at least one compressible elastic element and a guide screw which is fixedly connected to the display element and is movable in at least one direction.

[0030] Also disclosed is a housing for a medical product or a medical product as described above. The housing forms a battery compartment that can be loaded with a battery unit via an access. A mechanical display device is provided on the housing and designed to visually and / or haptically indicate the current loading status of the battery compartment from outside the medical product, even when the access is closed. Consequently, the housing enables a reliable indication of whether the battery unit is accommodated therein. It should be noted that the housing can be further developed according to the aspects described above in connection with the medical product.

[0031] Also disclosed is a cover for a housing of a medical product as described above. The housing forms a battery compartment that can be loaded with a battery unit via an access. The cover is designed and configured to close the access when engaged with the housing. For this purpose, the cover can fully encompass the housing around the access. Furthermore, the cover can be releasably engaged with the housing when the cover is closed. A mechanical display device is provided on the cover and designed to visually and / or haptically display the current loading status of the battery compartment from outside the medical product, even when the access is closed. Consequently, the cover enables a reliable indication of whether the battery unit is accommodated in the housing whose access it wears.Above all, the lid can be retrofitted cost-effectively to existing medical devices. It should be noted that the lid can be further developed according to the aspects described above in connection with the medical device.

[0032] Short description of the characters

[0033] The following description of embodiments is made with reference to the attached figures. They show:

[0034] Fig. 1 shows a medical product; Fig. 2 shows a detailed view of a lid closing a housing of the medical product, wherein an indicator provided on the lid indicates that no battery unit is accommodated in the housing of the medical product;

[0035] Fig. 3 is a detailed view of the lid, wherein the indicator device indicates that a battery unit is accommodated in the housing of the medical device;

[0036] Fig. 4 is a sectional view of the medical product in whose housing a battery unit is accommodated, wherein the housing is closed with the lid so that the indicator provided on the lid indicates that the battery unit is accommodated in the housing of the medical product;

[0037] Fig. 5 shows a medical product in which the indicator device is provided on the housing, the indicator device indicating that no battery unit is accommodated in the housing of the medical product;

[0038] Fig. 6 is a detailed view of the housing in the area of ​​the display device, wherein the display device indicates that a battery unit is accommodated in the housing of the medical product;

[0039] Fig. 7A, Fig. 7B and Fig. 7C are sectional views of a medical product according to an alternative embodiment in various assembly states, wherein a battery unit is accommodated in the housing of the medical product;

[0040] Fig. 8A, Fig. 8B, and Fig. 8C are sectional views of the medical product according to the alternative embodiment of Figs. 7A to 7C in various assembly states, wherein no battery unit is accommodated in the housing of the medical product; and Fig. 9A, Fig. 9B, and Fig. 9C are sectional views of the medical product according to the alternative embodiment of Figs. 7A to 7C, illustrating an impact protection mechanism according to the disclosure in various states.

[0041] Embodiments of the present disclosure are described below with reference to the figures. However, the following description should not be considered exhaustive or limiting.

[0042] Fig. 1 shows a medical product 1 having a housing 2 and a cover 4. In the present case, the medical product 1 is designed as a medical hand-held instrument. The housing 2 defines a battery receiving compartment into which a battery unit 12 (see Fig. 6) can be received, preferably with little play or essentially without play. The battery unit 12 comprises a battery, preferably a secondary battery, and preferably a control unit for the medical product 1, in particular for its motor unit (not shown). In addition, the housing 2 defines an access through which the battery unit 12 can be introduced, in particular pushed, into the battery receiving compartment. The cover 4 closes the access and can, for this purpose, completely encompass the housing 2 around the access. In addition, the cover 4 can be releasably engaged with the housing 2 when the cover 4 is closed.For example, the cover 4 and the housing 2 can be engaged by means of a releasable locking or snap-in mechanism that can be released or released by simultaneous actuation of actuating elements 8 and 10.

[0043] In the medical product 1 shown in Fig. 1, an indicator device is provided in the lid 4, which at least mechanically indicates to an outer side of the lid 4 that the battery unit 12 is accommodated in the battery receiving compartment. In the present case, the indicator element has a plunger 6, which protrudes from the lid 4 when the battery unit 12 is accommodated and the lid 4 is closed. For this purpose, the plunger 6 is displaced or shifted from the battery unit 12 to the outer side of the housing 2, as will be described later. A section 7 of the plunger 6 protruding from the lid 4 can be colored in a signal color, e.g., red, and / or have a label. In the present case, the plunger 6 is shown as a circular-cylindrical body, but can of course also have another suitable shape, such as a plate-like shape, or be directly or indirectly connected or coupled to a plate.

[0044] Fig. 2 shows a detailed view of the cover 4 placed on the housing 2. In the case shown in Fig. 2, the plunger 6 does not protrude from the cover 4, thus indicating that the battery unit 12 is not accommodated in the housing 2.

[0045] Fig. 3 shows a detailed view of the cover 4 placed on the housing 2. In the case shown in Fig. 3, the plunger 6 protrudes from the cover 4, indicating that the battery unit 12 is accommodated in the housing 2. The arrangement of the plunger on the cover 4 offers the advantage that the medical product 1 cannot be placed on the cover 4 without falling over. Consequently, inadvertent covering of the plunger 6 is avoided. Furthermore, the cover 4 can also be cost-effectively retrofitted with the display device on existing medical products 1.

[0046] A trigger section and a trigger mechanism that enable the plunger 6 to protrude will be described in detail below with reference to Fig. 4. Fig. 4 shows a sectional view of the medical product 1, in whose housing 2 the battery unit 12 is accommodated. Furthermore, the access to the housing 2 is closed by the cover 4, which completely surrounds the housing 2 and is releasably engaged with the housing 2.

[0047] It can be seen in Fig. 4 that a plate 14 is arranged in the cover 4 parallel to a bottom wall of the cover 4. The plate 14 engages with the plunger 6, for example, via a snap connection or locking connection. Alternatively, it is also possible for the plate 14 and the plunger 6 to be formed as a single piece. The plate 14 has a dimension that corresponds to an edge 16 surrounding the access and formed by the housing 2. The plate 14 corresponds to the trigger section. In addition, the plate 14 is preloaded towards the battery compartment by conical coil springs 18. The coil springs 18 thus correspond to the trigger mechanism. The preload ensures that the plunger 6 does not protrude from the cover 4 when the battery unit 12 is not accommodated in the housing 2.

[0048] A sealing element 20, which has the same dimensions as the plate 14 and thus as the edge 16 and is preferably made of silicone, is arranged on the plate 14. The plunger 6 extends through the sealing element 20 and surrounds the sealing element 24. Alternatively, the plunger 6, which is formed integrally with the plate 14, can engage behind the sealing element 20 in the direction of the battery compartment and enclose it between itself and the plate 14. Consequently, a good seal of the battery compartment is achieved.

[0049] When the lid 4 is closed, the sealing element 20 is arranged between the plate 14 and the edge 16. In the event that no battery unit 12 is accommodated in the housing 12, the sealing element 20 is compressed in the region of the edge 16 by the conical spiral springs 18. However, in the event that the battery unit 12 is accommodated in the housing 2, the plunger 6 is displaced or shifted by the battery unit 12 towards the outside of the lid 4, so that the conical spiral springs 18 are compressed more strongly and consequently the sealing element 12 is compressed less strongly in the region of the edge 16. The length of the part of the plunger 6 that projects beyond the plate 14 towards the battery compartment should preferably be selected such that contact between the sealing element 20 and the plate 14 and the edge 16 is still maintained.

[0050] Furthermore, Fig. 4 shows that the battery unit 12 can have a light-emitting element, which in this case is designed as a light-emitting diode (LED) 22. The control unit of the battery unit 12 can switch on the LED 22 when the battery unit 12 is in a received state, so that light, in particular red light, is emitted by the LED 22. The control unit 12 can switch on the LED 22 in particular when an initial measurement of the motor unit of the medical product 22 is carried out and the correct use of the battery unit 12 is determined. In this case, the display device can have a viewing window 24 through which the light emitted by the LED 22 emerges. The viewing window 24 can preferably be formed through the plunger 6 along its extension direction.For example, a Plexiglas element can be inserted into a through-opening formed by the plunger 6 along its extension direction and glued thereto. This creates a viewing window 24 with a long length, reliably preventing germs from escaping from the battery compartment to the outside.

[0051] To ensure sufficient light is emitted to the outside of the cover 4, the LED 22 and the viewing window 24 must be arranged close to one another. In the example shown in Fig. 4, the LED 22 and the viewing window 24 are arranged axially relative to one another. By providing the LED 22 and the viewing window 24, the signaling effect of the display device is further amplified by the emitted light. Should the battery unit 12 be discharged and no more light is emitted by the LED 22, the plunger 6 continues to reliably indicate that the battery unit 12 is accommodated in the housing 2 by protruding from the cover 4.

[0052] An embodiment was described above in which the display element is provided in the lid 4. This embodiment offers the advantage that the lid 4 can be retrofitted cost-effectively even to existing medical products 1. Furthermore, with the protruding plunger 6, the medical product 1 falls over when placed on the lid 4. Consequently, the display element is not inadvertently covered.

[0053] Fig. 5 shows a further embodiment of the medical product 1, in which the display element is arranged in the housing 2. Fig. 5 shows a case in which the battery unit 12 is not accommodated in the housing 2. Fig. 6, however, shows a case in which the battery unit 12 is accommodated in the housing and the plunger 6 protrudes from the housing 2.

[0054] Although the display device was described above as a combination of plunger 6 and viewing window 24, it is of course possible to arrange the plunger 6 and the viewing window 24 separately. One of the two elements can be provided in the cover 4 and the other of the two elements in the housing 2.

[0055] Figures 7 to 9 show a further embodiment of a medical product 1 according to the disclosure, which has a housing 2 and a cover 4.

[0056] Figures 7A to 7C show sectional views of the medical product 1, in whose housing 2 a battery unit 12 is accommodated. Fig. 7A shows a state in which the housing 2 is being pushed or moved in an axial direction A towards the cover 4, with the aim of bringing the cover 4 and the housing 2 into an engaged state in order to close the access to the battery receiving compartment in which the battery unit 12 is accommodated. Fig. 7B shows a state in which the battery unit 12 accommodated in the housing 2 begins to displace a plunger 6 provided in the cover 4 in the axial direction A. In this embodiment, the displacement of the plunger 6 indirectly causes a displacement of a base plate 26 of the cover 4. Fig. 7C shows a state in which the base plate 26 of the cover 4 is in a fully extended state (with respect to the cover main body 28).In this embodiment, the indicator element is not the plunger 6, but the base plate 26. The design and operation of this embodiment are described in detail below.

[0057] Similar to the embodiment of Fig. 4, a plate 14 is provided that engages with the tappet 6. The engagement preferably occurs via beveled sections provided on the tappet 6 and the plate 14. The plate 14 has a dimension that corresponds to the edge 16 surrounding the access and formed by the housing 2. The plate 14 is preloaded toward the battery compartment by preferably conical spiral springs 18, for example four conical spiral springs 18 evenly distributed over the circumference, each of which is supported on the cover base body 28 of the cover 4.The preload ensures a defined initial state of plate 14 and plunger 6, in particular such that the plunger 6 and the plate 14 abut one another at the bevelled sections and, at the same time, the plate 14 is held in contact with a sealing element 20, which is arranged on the plate 14 and has the same dimensions as the plate 14 and thus as the edge 16. The plunger extends through the sealing element 20 and encompasses the sealing element 24. In particular, the sealing element 24 is clamped between a bolt 29 and a nut 30 of the plunger 6. In the embodiment of Figures 7 to 9, a light guide or viewing window 24 also extends through the plunger 6, through which light emitted by an LED (not shown) can escape to the outside. When the battery unit 12 accommodated in the housing 2 in Fig.7B comes into contact with the plunger 6, the plunger 6 is displaced or shifted by the battery unit 12 from a retracted state to an extended state, so that the coil springs 18 are compressed more strongly. Up to this point, the embodiment of Figures 7 to 9 essentially corresponds to the embodiment of Figure 4.

[0058] In contrast to the embodiment of Fig. 4, the plunger 6 in the embodiment of Figures 7 to 9 is not a display element and is therefore not itself displaced or shifted towards the outside of the cover 4. Instead, the axial end of the plunger 6 facing away from the battery unit 12 is received in a (central) receptacle 31 of a pressure plate 32 such that a movement of the plunger 6 in the axial direction A from the retracted state to the extended state effects or causes a movement of the pressure plate 32 in the axial direction A, which is accompanied by a compression of a (central) elastic spring element 34 arranged between the pressure plate 32 and the cover base body 28, which can be a (conical) spiral spring.The pressure plate 32 has at least one through-bore 36 for a guide screw 38, preferably two diametrically opposed through-bores 36 for two guide screws 38, radially on the outside (in the illustrated sectional views, sections perpendicular to each other are shown to the left and right of the central axis). A guide section 40 of the guide screw 38 is received or guided in the through-bore 36. The guide screw 38 further has a screw head section 42 which protrudes radially with respect to the guide section 40 and can rest on the pressure plate 32. In addition, the guide screw 38 has a threaded section 44 which is screwed into the base plate 26, so that the guide screw 38 is firmly connected to the base plate 26.

[0059] When the plunger 6 and the pressure plate 32 are in the extended state as shown in Fig. 7C and the (central) elastic spring element 34 is compressed, a movement of the base plate 26 in the axial direction A is released or enabled. In particular, the base plate 26, together with the guide screw 38 screwed therein, is displaced or shifted to the outside of the cover 4, in particular away from the cover base body 28. This is achieved by at least one elastic spring element 46, preferably two diametrically opposed elastic spring elements 46 (in the sectional views shown, sections perpendicular to each other are shown to the right and left of the central axis). The elastic spring element 46 is supported both on the cover base body 28 and on the base plate 26 and presses the base plate 26 away from the cover base body 28.Due to the previous axial movement of the pressure plate 32, a corresponding axial movement of the base plate 26 together with the guide screw 38 is enabled by the elastic spring element 46, wherein the screw head section 42 of the guide screw 38 remains in contact with the pressure plate 32.

[0060] In this embodiment, the lid 4, in addition to the lid base body 28 and the base plate 26, also has a cover element 48 firmly attached to the base plate 26. Furthermore, the lid 4 also has actuating elements 8, 10, via which a releasable locking or snap-in mechanism, by means of which the lid 4 and the housing 2 engage, can be released or released. The base plate 4 is preferably a fluorescent disc or plate, for example made of Plexiglas, so that the light emitted by an LED (not shown) can escape to the outside via the light guide or viewing window 24 and the base plate 26. The base plate 26 does not necessarily have to have fluorescent properties, but can also simply be a colored plate, such as a green-colored plate, or can simply have a colored marking or a colored band on the outside. The cover element 48 is preferably the same color as the lid base body 28.If the light emitted by the base plate 26 or the base plate 26 itself differs in color from the lid base body 28 and the cover element 48, the loading state of the battery receiving compartment with the battery unit 12 is immediately apparent from the outside.

[0061] Figures 8A to 8C show sectional views of the medical product 1, in whose housing 2 no battery unit 12 is accommodated. Fig. 8A shows a state in which the housing 2 is being pushed or moved in an axial direction A towards the cover 4, with the aim of bringing the cover 4 and the housing 2 into an engaged state in order to close the access of the battery receiving compartment in which no battery unit 12 is accommodated. Fig. 8B shows a state in which the edge 16 of the housing 2 comes into contact with the plate 14 and displaces the plate 14 relative to the plunger 6 and away from the sealing element 20, whereby a compression of the coil springs 18 occurs. Fig. 8C shows a state in which the cover 4 is fastened to the housing 2 and the coil springs 18 are compressed between the plate 14 and the cover base body 28.

[0062] If no battery unit 12 is accommodated in the housing 2, there is no displacement or relocation of the plunger 6 together with the pressure plate 32 and thus also no compression of the (central) elastic spring element 34. Since the spring force of the (central) elastic spring element 34 is greater than the spring force of the elastic element 46 / the combined spring forces of the elastic elements 46, the pressure plate 32 together with the plunger 6 is pressed upwards or counter to the axial direction A by the (central) elastic spring element 34. The pressure plate 32 presses the guide screw 38 via the screw head section 42 resting on the pressure plate 32 upwards or counter to the axial direction A, whereby the base plate 26 screwed to the guide screw 38 is also pressed upwards or counter to the axial direction A. The elastic spring element 46 orThe preferably two provided and diametrically opposed elastic spring elements 46 are compressed, so that the base plate 26 is completely received in a base plate receptacle 50 formed by the cover base body 28 and is not visible from the outside. The cover element 48 essentially rests against the cover base body 28 and essentially closes the cover base body 28 flush.

[0063] With reference to Figures 9A, 9B and 9C, an impact protection mechanism of the embodiment of Figures 7 to 9 is explained. Figure 9A corresponds to Figure 7C and thus shows a state in which the base plate 26 of the lid 4 is in a fully extended state (relative to the lid main body 28) and thus indicates that a battery unit 12 is located in the battery receiving compartment. If, in the state shown in Figure 9A, the medical product 1 with its lid 4, in particular with the base plate 26 and the cover element 48, impacts a surface such as a table or a floor, or if an impact is exerted on the cover element 48 or the base plate 26, this impact or this impact is absorbed in a suitable manner (resiliently) by the elastic spring element 46 or the elastic spring elements 46. In particular, the cover member 48 and the base plate 26 move in Fig. 9B and Fig.9C opposite to the axial direction A, whereby the elastic spring element 46 or the elastic spring elements 46 is / are compressed and whereby the guide screw(s) 38 screwed to the base plate 26 move with their guide section 40 or with their guide sections 40 relative to or along the through-bore(s) 36 of the pressure plate 32 and the screw head section 42 or the screw head sections 42 come or come out of contact with the pressure plate 32 and thus move or move away from the pressure plate 32. Fig. 9B shows a state which is reached with a lighter shock or impact, whereas Fig. 9C shows a state which is reached with a stronger shock or impact.

[0064] According to the embodiment of Figures 7 to 9, the trigger mechanism preferably comprises the plunger 6, the conical spiral springs 18, the pressure plate 32, the central elastic spring element 34, the guide screw 38 and the elastic spring element 46. The guide screw 38 and the elastic spring element 46 are not only part of the trigger mechanism but also part of an impact protection mechanism or an impact protection device according to the disclosure. In summary, it can be stated that the medical product 1 enables a reliable indication of whether a battery unit 12 is accommodated in the housing 2 or not. The indication device continues to indicate whether the battery unit 12 is accommodated in the housing 2 even when the battery is discharged. By additionally providing the viewing window 24 orof the viewing window / light guide in combination with the fluorescent base plate 26 and the emission of light to the outside of the medical product 1, a signaling effect of the display element is enhanced.

[0065] List of reference symbols

[0066] 1 medical device

[0067] 2 housings

[0068] 4 lids

[0069] 6 pestles

[0070] 7 projecting section

[0071] 8 Actuating element

[0072] 10 Actuating element

[0073] 12 Battery unit

[0074] 14 plate

[0075] 16 edges

[0076] 18 conical spiral spring

[0077] 20 sealing element

[0078] 22 light-emitting element

[0079] 24 viewing windows

[0080] 26 Base plate

[0081] 28 Lid base body

[0082] 29 bolts

[0083] 30 mother

[0084] 31 recording

[0085] 32 printing plate

[0086] 34 elastic spring element

[0087] 36 through hole

[0088] 38 Guide screw

[0089] 40 guide section

[0090] 42 Screw head section

[0091] 44 threaded section

[0092] 46 elastic spring element

[0093] 48 Cover element

[0094] 50 base plate holder

Claims

Claims 1. Medical product (1) which is provided and designed for a sterilization process, comprising: a housing (2) which forms a battery receiving compartment which can be loaded with a battery unit (12) via an access, and a cover (4) which is designed and configured to close the access when engaged with the housing (2), characterized by a mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) which is provided on the housing (2) and / or the cover (4) and is designed to display the current loading status of the battery receiving compartment visually and / or haptically from outside the medical product (1) even when the access is closed.

2. Medical product (1) according to claim 1, characterized in that the mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) is provided and designed to provide the visually and / or haptically recognizable display of the current loading state of the battery compartment independently of an electrical energy supply, even without the provision of electrical energy.

3. Medical product (1) according to claim 1 or 2, characterized in that the mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) is or has a viewing window (24) through which the battery compartment can be visually viewed from outside the medical product (1).

4. Medical product (1) according to one of claims 1 to 3, characterized in that the mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) has a display element (6, 26) that can be recognized visually and / or haptically from outside the medical product (1) and a trigger section (14) of the display element (6, 26) and / or a trigger mechanism (6, 18, 32, 34, 38, 46) that is arranged at least partially in the battery compartment and is operatively connected to the display element (6, 26).

5. Medical product (1) according to claim 4, characterized in that the trigger section (14) of the display element (6) and / or the trigger mechanism (6, 18, 32, 34, 38, 46) protrudes at least partially into a loading / removal path of the battery unit (12), such that the trigger section (14) of the display element (6) and / or the trigger mechanism (18) is actuated by the loading / removal process of the battery unit (12) itself.

6. Medical product (1) according to claim 4 or 5, characterized in that the display element (6) is a plunger which is designed and arranged to protrude from the housing (2) and / or the cover (4) in a state of loading with the battery unit (12).

7. Medical product (1) according to one of claims 4 to 6, characterized in that the trigger section (14) is a plate which can be displaced relative to a wall of the housing (2) and / or the cover (4).

8. Medical product (1) according to one of claims 4 to 7, characterized in that the trigger mechanism (6, 18, 32, 34, 38, 46) is or comprises an elastic element, preferably at least one spring, more preferably at least one conical spiral spring.

9. Medical product (1) according to one of claims 1 to 8, characterized in that the mechanical display device (6, 14, 18, 24) is arranged in the cover (4).

10. Medical product (1) according to claims 7 and 9, characterized in that a dimension of the plate corresponds to an edge (16) surrounding the access.

11. Medical product (1) according to claim 10, characterized in that a sealing element (20) with the dimension of the plate (14) is arranged on a side of the plate (14) facing the battery receiving compartment, so that the sealing element (20) is arranged between the edge (16) and the plate (14) in an engagement state of the cover (4) with the housing (2).

12. Medical product (1) according to claims 6 and 11, characterized in that the plunger (6) extends through the sealing element (20), and the plunger (6) engages around the sealing element (24) or engages behind the sealing element (24) in the direction of the battery receiving compartment and encloses it between itself and the plate (14).

13. Medical product (1) according to one of the claims dependent on claim 3, characterized by the battery unit (12) which has a control unit and a light-emitting element, wherein the control unit is set up and designed to switch on the light-emitting element in a loaded state with the battery unit (12), and the light-emitting element is arranged in the region of the viewing window (24) so ​​that light emitted by the light-emitting element emerges through the viewing window (24) or through the viewing window (24) and the display element (26).

14. Medical product (1) according to one of the preceding claims, wherein the mechanical display device (6, 14, 18, 24, 26, 32, 34, 38, 46) has a display element (6, 26) that is visually and / or haptically recognizable from outside the medical product (1), wherein the display element (6, 26) is a plunger (6) or a flat or plate-like or shell-like section of the lid (4) or the housing (2), preferably a plate, particularly preferably a, in particular fluorescent, base plate (26) of the lid (4).

15. Medical product (1) according to claim 14, wherein the display element (26) is coupled directly or indirectly to a plunger (6).

16. Medical product (1) according to claim 15, wherein the plunger (6) is provided and configured to be displaced or shifted by a battery unit (12) accommodated in a battery receiving compartment, wherein the displacement or shifting of the plunger (6) indirectly leads to a displacement or shifting of the display element (26) towards the outside of the housing (2) or the cover (4), in particular releases the displacement or shifting of the display element (26) towards the outside.

17. The medical product (1) according to claim 16, wherein the displacement of the plunger (6) by the battery unit (12) accommodated in the battery receiving compartment leads to a displacement of a pressure plate (32) and to a compression of a preferably central, elastic spring element (34), wherein a guide screw (38) which is movable relative to the pressure plate (32) and is firmly connected to the display element (26) is accommodated in a through-bore (36) of the pressure plate (32), and wherein the displacement of the pressure plate (32) and the compression of the elastic spring element (34) releases a travel or displacement path of the display element (26) and the guide screw (38), wherein the displacement of the display element (26) and the guide screw (38) is brought about by at least one further elastic spring element (46).

18. Medical product (1) according to one of the preceding claims, further comprising an impact protection mechanism or an impact protection device (38, 46) for resiliently absorbing an impact of the display element (6, 26) or an impact on the display element (6, 26).

19. Medical product (1) according to claim 18, wherein the impact protection mechanism or the impact protection device (38, 46) has at least one elastic element (46) and a guide device, in particular a guide screw (38), which is movable in at least one direction and is firmly connected to the display element (6, 26).

20. Housing (2) for a medical product (1), in particular for a medical product (1) according to one of the preceding claims, wherein the housing (2) forms a battery receiving compartment which can be loaded with a battery unit (12) via an access, characterized by a mechanical display device (6, 24) which is provided on the housing (2) and is designed to display the current loading state of the battery receiving compartment visually and / or haptically from outside the medical product (1) even when the access is closed.

21. Cover (4) for a housing (2) of a medical product (1), in particular a medical product (1) according to one of claims 1 to 19, wherein the housing (2) forms a battery receiving compartment which can be loaded with a battery unit (12) via an access, wherein the cover (4) is designed and configured to close the access when engaged with the housing (2), characterized by a mechanical display device (6, 24) which is provided on the cover (4) and is designed to display the current loading state of the battery receiving compartment visually and / or haptically from outside the medical product (1) even when the access is closed.

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