Endoscope, base module and operation module of endoscope, sterile disposable product, system and method for providing endoscope

Abstract

The invention relates to an endoscope (20, 220, 320). The endoscope (20, 220, 320) includes a base module (22, 622). The base module (22, 622) includes a housing (24, 624) and control electronics (26, 626), wherein the housing (24, 624) encloses the control electronics (26, 626) therein. Furthermore, the endoscope (20, 220, 320) comprises an operating module (28, 628, 828, 928, 102 8), which is adapted to make the base module (22, 622) operable, and which comprises a base body (30, 630, 830, 930, 103), which defines an accommodation space (32, 632, 832, 932, 103) for the base module (22, 622). In order to establish an operable state, the base module (22, 622) can be inserted by a user into the receiving space (32, 632, 832, 932, 103) of the operating module (28, 628, 828, 928, 102 8). Furthermore, the operating module (28, 628, 828, 928, 102 8) and the base module (22, 622) together form a fastening means (34, 634, 834, 934, 103 4), by means of which the housing (24, 624) can be detachably fastened to the operating module (28, 628, 828, 928, 102 8).

Description

TECHNICAL FIELD

[0001] The present invention relates to an endoscope, to a base module of an endoscope, to an operating module of an endoscope, to a sterile disposable product, to a system and to a method of providing an endoscope. BACKGROUND

[0002] For performing diagnostic and / or therapeutic actions on hard-to-reach parts of a patient's body, endoscopes are often used. Hard-to-reach parts of the body are in particular cavities, such as body cavities and / or hollow organs. An endoscope is configured such that it can be partially fed into a cavity of a patient in order to perform diagnostic and / or therapeutic actions. For example, in order to make an anatomical structure visible, or in order to be able to better monitor diagnostic and / or therapeutic actions, the endoscope is usually provided to shine light into the cavity of the patient.

[0003] The endoscope comprises an elongated shaft which is partially fed into a cavity of a patient. For inspecting an anatomical structure, the distal end of the shaft is aligned in such a way that it essentially points in the direction of the anatomical structure. Thus, the anatomical structure can be illuminated in a targeted manner. As a result of the imaging, light reflected from the anatomical structure can be captured by the distal end of the shaft. After the imaging has been completed, the anatomical structure can be displayed to a user.

[0004] The endoscope comprises an operating handle and / or an operating portion for the operation, which has an ergonomic outer shape in order to be better operated. The operating handle is usually milled from a solid piece of metal material, which is often a complex and / or cost-intensive manufacturing step. The operating handle manufactured in this way is permanently connected to the rest of the endoscope. Furthermore, the interior of the operating handle can be provided with electronic components, control elements or the like. However, for certain applications of the endoscope, it can be more advantageous to use an operating handle with another outer shape. The user is thus faced with the choice of either continuing to use the endoscope with the less advantageous outer shape of the operating handle or using another endoscope comprising an operating handle with a more advantageous outer shape.

[0005] Furthermore, when using the endoscope in medical applications, it is in principle noted that it must be sterile and must be able to be sterilized as simply and reliably as possible. Therefore, the operating handle and the entire endoscope must meet special requirements for tightness, in particular for fluid and / or gas tightness. The endoscope, in particular the operating handle thereof, must encapsulate the electronic devices contained therein in such a way that the entire endoscope, together with the permanently fixed operating handle, can be sterilized as simply and reliably as possible. This can in particular include high-pressure steam sterilization, which places high demands on temperature resistance and air tightness.

[0006] Furthermore, in this respect it can also be provided that the endoscope is locally provided with a sterile, disposable cover, a so-called "drape", in order to protect at least to a large extent critical parts of the endoscope, in particular the operating handle, from contamination during the operation. The process of covering the endoscope with the sterile, disposable cover can be time-consuming and / or laborious. Furthermore, the sterile, disposable cover is usually limited to one-time use.

[0007] A further aspect associated with endoscopes is the large variety of endoscopes, which are each provided for a specific use. These endoscopes include electronic components adapted for the respective use purpose, which can be provided in one piece with the operating handle. This can lead to a high fragmentation of the development and / or manufacturing process, with only limited synergies being possible between different types of endoscopes. Thus, providing a broad product range requires relatively high costs for the endoscope manufacturer.

[0008] Yet another aspect can relate to the problem of heat generation during the operation of the endoscope. In particular, the waste heat generated by the electrically consuming components, in particular the illumination elements like LEDs, can heat up the operating handle, which is made of metal and permanently connected to the other parts of the endoscope. Thus, the operating handle can be heated up so much that the user can hardly hold the operating handle and / or the power of the electrically consuming components has to be reduced. Generally, the power of the electrically consuming components can be limited due to the heating of the operating handle. This can sometimes lead to a limitation of the maximum light intensity, which is not due to the illumination elements installed or in principle installable, but due to the undesired generation of waste heat, which can affect the user's comfort or the operability of the endoscope.

[0009] Furthermore, an aspect relates to the cable connecting the endoscope with the power supply unit. This cable can have a preferred rotational position relative to the endoscope and / or define a preferred rotational position of the endoscope, which can have an adverse effect when using the endoscope. Thus, connecting the endoscope can require a high concentration of attention to ensure that the relative positions between the relevant components are correct and the connection is established correctly. Furthermore, the cable can be constructed in such a way that the cable replacement can only be carried out by a person trained for this purpose. SUMMARY

[0010] Based on the state of the art, it is an object of the present application to improve the flexibility, efficiency and / or cost-effectiveness of endoscopes.

[0011] According to the present application, this object can be achieved by an endoscope, a base module of an endoscope, an operating module of an endoscope, a sterile, disposable product, a system and a method for providing an endoscope, as described herein and defined in the claims.

[0012] According to the application, an endoscope can be provided. The endoscope can comprise a base module. The base module comprises a housing and control electronics, wherein the housing encloses the control electronics. Furthermore, the endoscope can comprise an operating module, which is adapted to make the base module operable, and which comprises a base body, which defines an accommodation space for accommodating the base module. The base module can be able to be placed by a user into the accommodation space of the operating module to establish an operable state. Furthermore, the operating module and the base module can jointly constitute a securing mechanism, by means of which the housing can be detachably secured on the operating module.

[0013] According to the application, furthermore, a base module for an endoscope can be provided.

[0014] According to the application, furthermore, an operating module for an endoscope can be provided.

[0015] According to the application, furthermore, a system can be provided. The system can comprise a base module and at least two different operating modules, wherein the two operating modules realize different functions in the operable state of the base module. In other words, in a first operable state of the base module, i.e. when the base module is installed into a first operating module, the first operating module can realize a first function, while in a second operable state of the base module, i.e. when the base module is installed into a second operating module, the second operating module can realize a second function, which is different from the first function.

[0016] According to the application, furthermore, a method for providing an endoscope for a user can be provided. The method comprises providing a base module, providing an operating module and installing the base module into the operating module by the user.

[0017] Advantageously, an endoscope can be provided, which is characterized by a high flexibility, a high efficiency and / or a low operating cost. The user can set the endoscope according to the specific application requirements, so that the application quality of the endoscope can be improved. Furthermore, development costs and / or production costs can be saved. Furthermore, situations occurring during the use of the endoscope can be dealt with more quickly and / or more specifically, for example, if it is found during the use that another operating module is more advantageous. The user can optimally set the endoscope, in particular the operating handle, according to his own requirements and / or demands. The structure of the endoscope can be simplified in such a way that modules are provided, which are each associated with their own function. For example, the operating module can be compatible with various base modules, so that a standardized operating module can be provided. Furthermore, in general, the consumption of materials and / or the consumption of energy can be reduced over a longer period of use.

[0018] The inventors realized that the conventional draping procedure is a relatively complex process, which usually requires at least two persons to be completed. There is a risk of contamination during this procedure. The present invention makes it possible to provide all components in a sterile manner. These components can be assembled by a single person. Thereby, patient safety is improved, in particular with respect to hygiene. Furthermore, the inventors found that the cost of a sterile cover sheet is comparable to the cost of a disposable handling module, in particular when the module is manufactured using an injection molding process. In both cases, the disposable products are discarded, so that there is no significant difference with respect to waste generation. In this respect, the handling modules according to the present invention can even have an advantage, because they are more easily recycled.

[0019] The features described herein can generally be applied to endoscopes and / or endoscope devices. Thus, the present disclosure generally relates in certain aspects to an endoscope device. The endoscope device can comprise a base module. The base module comprises a housing and control electronics, wherein the housing encapsulates the control electronics. The endoscope device can comprise a handling module. The base module can be able to be placed into a receiving space of the handling module to establish an operable state. This can be done when manufacturing the endoscope. This can also alternatively or additionally be done by a user. The handling module and the base module can jointly constitute a securing mechanism by means of which the housing can be detachably secured on the handling module. The securing mechanism can be detachable. It can be understood that the aspects described below can be combined with the general aspects described above.

[0020] The present disclosure furthermore relates to an endoscope having such an endoscope device. Furthermore, the present disclosure relates to a method for manufacturing such an endoscope device and / or such an endoscope.

[0021] The endoscope can be a flexible and / or rigid endoscope. For example, the endoscope can comprise a movable and / or steerable portion. The base module can be a generic and / or standardized module. The base module can be able to realize and / or control and / or integrate at least to a large extent all functions of the endoscope in terms of image data generation as such. The base module can constitute a closed unit as such. In particular, the base module can be adapted to be sterilizable and / or autoclavable. In particular, the housing can be configured to be fluid-tight and / or gas-tight. The base module can comprise all components adapted for generating image data. For example, these components can comprise at least one image sensor, at least one illumination element, at least one optical device in particular for imaging, at least one light guide device in particular comprising a rod lens and / or an optical waveguide, at least one electrical conductor and / or at least one actuator in particular for driving a portion of the base module and / or the optical device, in particular for focusing. Furthermore, at least one of the components, in particular the illumination element and / or the image sensor, can generate waste heat when in operation. The base module can be adapted to export the waste heat, in particular to a portion configured as a heat sink. In this context, the base module can comprise a waste heat export device. In particular, the base module can comprise a heat pipe.

[0022] The base module can be compatible with different or differently configured operating modules. It can be provided that the system comprises a plurality of operating modules having different characteristics, for example dimensions, circumferences and / or shapes and / or functions, wherein all operating modules are compatible with the same base module, or in other words the base module can be detachably fixed on all operating modules.

[0023] The base module can have a main extension direction. For example, the base module can extend along the main extension direction by 5 cm to 200 cm, in particular 10 cm to 150 cm, preferably 20 cm to 100 cm, in particular preferably 40 cm to 80 cm. The main extension axis can extend along the main extension direction. The "main extension direction" of a component is in particular to be understood as the direction parallel to the longest side of a smallest imaginary cuboid which completely encloses the component.

[0024] The user can be an end user and / or a consumer. In particular, the user does not participate in the manufacture of the base module and / or the operating module. Furthermore, the user does not participate in particular in the production process of bringing the endoscope into a saleable state and / or in the production and / or manufacturing steps prior to the sale of the endoscope. Rather, the user can use the endoscope in a state as purchased. The user can be a physician, a medical assistant, a clinical staff and / or a medical staff. The operable state is established in particular in a context with a patient. The operable state is established for example in the immediate vicinity of using the endoscope, such as up to 60 minutes, up to 30 minutes, up to 10 minutes, or even up to 5 minutes before. Establishing the operable state can serve to prepare the endoscope. In particular, the operable state is not established in the manufacturing and / or production process, nor in a workshop and / or factory.

[0025] The control electronics comprise electronic components which are adapted in such a way that imaging by means of the endoscope is possible. For example, the control electronics can comprise a computing unit, such as a microprocessor, communication and / or network elements, storage elements, voltage converters and / or motor control units. The control electronics can be adapted to supply electrical energy to elements which are adapted to generate image data, such as image sensors and / or illumination elements, and / or to control their function. For example, the generation of image data can be able to be triggered, and / or the brightness can be able to be adjusted. Furthermore, the control electronics can also be adapted to digitize the image data, in particular in the case of CCD sensors and / or CMOS sensors and / or silicon image sensors and / or SWIR image sensors or other digital sensors. The control electronics can in principle be adapted to control a plurality of different components. These components can be able to be set as required, for example depending on the type of endoscope and / or the field of application of the endoscope, and are connected to and / or compatible with the control electronics.

[0026] Furthermore, the control electronics can also be adapted to transmit the image data to a power supply unit and / or a display unit. The power supply unit can be adapted to process the image data. The display unit can be adapted to display the image data, in particular during operation of the endoscope.

[0027] The housing can be adapted to absorb waste heat of the control electronics and / or of the base module components and / or to dissipate it via the outer surface of the housing, in particular into the surroundings of the housing. Furthermore, the housing can be adapted to encapsulate the control electronics in a fluid-tight manner.

[0028] The operating module can in principle provide an interface for the mechanical manipulation of the endoscope. "Being made operable" can mean, for example, that the operating module can be held by the user and / or that the endoscope can be moved in space. Furthermore, the endoscope can be able to be mounted on a robot, in particular a medical robot, by means of the operating module and / or can be held and / or retained by the robot. In this context, the user can establish the operable state, in particular by prompting the establishment, in particular the automatic establishment, of the operable state by means of the robot, in particular by manipulating the interface to the robot. The robot can be set up to perform actions, in particular diagnostic actions and / or interventions. Furthermore, the endoscope can be mounted on a support arm by means of the operating module. The support arm can be adapted to retain the endoscope, in particular for assisting the user in performing actions. Furthermore, the operating module can have an ergonomic shape in terms of the user's use. This can in particular mean that the operating module has a preferred orientation with respect to the user's grip. The operating module can be free of any electrical and / or electronic components. The operating module can be free of a power supply and / or a power adapter and / or an electrical energy store.

[0029] The operating module can be compatible with a plurality of base modules. For example, the system can comprise different base modules which each implement different functions. The different base modules, in particular the housings of the base modules, can be able to be placed into the accommodation space of the operating module and / or the base modules can be able to be detachably fixed on the operating module.

[0030] In particular, the base body can be configured to have an ergonomic shape on the circumferential surface of the side face. The accommodation space can have such dimensions and / or a shape that ensure that the base module, in particular the housing, can be placed into the accommodation space with a largely precise fit. In certain embodiments, the base module, in particular the housing, is at least partially spaced apart from the inner surface of the accommodation space and / or the inner wall of the base body when the operating module is in the placed-in state. "Being able to be placed into" can in particular refer to being able to be pushed into, fitted into, inserted into, pressed into and / or pushed into.

[0031] The securing mechanism can in particular be adapted to at least substantially limit the axial movability of the base module relative to the operating module. In addition, lateral and / or rotational relative movements can be able to be limited. The securing mechanism can comprise at least one movable component. The movable component can be provided on the operating module. Alternatively or additionally, the movable component can be provided on the base module. "Removably securing" can in particular mean that the operating module can be quickly, simply and / or reversibly secured on the base module. In particular, the operating module can be repeatedly secured on the base module and detached therefrom without damage. In particular, the base module can be repeatedly used. "Without damage" can in particular be with respect to the base module. In certain embodiments, the operating module can be configured to be so removably secured that it is destroyed and / or damaged upon detachment. For example, the operating module can be able to be installed and / or detached within 30 seconds, in particular within 20 seconds, preferably within 10 seconds. Preferably, "simply" means that the operating module can be connected and / or detached by only one user, preferably without tools. The securing mechanism can be passive or active. "Passive" can mean that the base module can be activated by placing the base module into the receiving space. "Active" can mean that the securing mechanism can be manipulated and / or activated by the user, in particular in the state in which the base module is placed into the receiving space. In certain embodiments, the securing mechanism can be provided on a proximal portion of the base module and / or of the operating module relative to the user. In addition, the securing mechanism can be provided on a proximal end face of the base module and / or of the operating module. Alternatively or additionally, the securing mechanism can be provided on a lateral surface of the base module and / or of the operating module.

[0032] In particular, the operating module can be configured for single use. This can mean that the user places the base module, in particular a sterile base module, into the receiving space of the operating module within a short time, for example within a few minutes, before a certain action. After completion of the action, in particular a therapeutic and / or diagnostic action, the user can detach the operating module from the base module. For example, the user can place the base module into a further operating module. The further operating module can have other application characteristics, which are advantageous for a particular application.

[0033] According to the application, in addition, a sterile single-use product can be provided. The sterile single-use product can comprise an operating module and a sterile outer packaging, wherein the operating module is packaged in the sterile state within the outer packaging. Advantageously, the user can quickly place the endoscope in an operable state. The endoscope is so provided, or the base module is so placed, that the endoscope does not need to be sterilized before use. This can make it possible to save a large amount of time, to achieve a higher comfort and / or to flexibly and / or quickly respond to various situations that arise during use.

[0034] Furthermore, the operating module can be adapted to enable the base module to be handled and manipulated by a user, and a manipulable state can be established by placing the base module into the accommodation space. In the manipulable state, the endoscope can be used at least substantially completely by the user. Advantageously, the user can operate a base module that is specific to a certain application, for example, with an operating module that is more advantageous for him. The base module can not be completely operable without the operating module. The usability of the endoscope can be achieved by the user connecting the base module with the operating module. The endoscope can be provided for this purpose in the form of separate components, the base module and the operating module, which are procured and / or stocked and / or warehoused separately and brought into a ready-to-use state by assembling the separate components before use.

[0035] Furthermore, the base module can be detachable and / or attachable to the operating module without tools. The operability can be simple. "Without tools" can in particular mean that the user does not need further items to attach and / or detach the base module to / from the operating module.

[0036] Furthermore, the attachment mechanism can comprise a pre-tensioned and / or pre-tensionable pre-tensioning element. For example, the attachment mechanism can comprise a spring, in particular a leaf spring, a torsion spring, a disc spring and / or a ring spring. The pre-tensioning element can generate a pre-tensioning force. The attachment force can be associated with the pre-tensioning force. The pre-tensioning element can be pre-tensioned by the placement of the base module. For example, the base module and / or the operating module can comprise a clamping element, for example a protrusion, a stop, a ramp, a wedge, a projection and / or the like, along which the pre-tensioning element can be moved. The clamping element can in particular extend in a direction in which the pre-tensioning force acts partially and / or substantially. Furthermore, the pre-tensioning force can be able to be set depending on the specific case of the base module. For example, for larger and / or heavier base modules, a greater pre-tensioning force and / or attachment force can be able to be set. In certain embodiments, the pre-tensioning force can act partially and / or at least substantially in a radial direction. The attachment mechanism can have the feature of simple handling. In particular, the base module can be attached by a single user and / or the base module can be able to be attached by a single user. A high operating safety and / or user friendliness can be achieved.

[0037] Furthermore, the securing mechanism can comprise a holding element which is adapted to detachably secure the housing on the operating module by back clamping. The holding element can be provided on the operating module. Alternatively, the holding element can be provided on the base module, in particular on the housing. The securing mechanism can comprise a plurality of holding elements which are adapted to detachably secure the housing on the operating module by back clamping. The holding elements can be provided on the operating module and / or on the base module, in particular on the housing. By means of back clamping, a high securing force can be achieved. Thereby, the operating safety can be increased to a great extent. Furthermore, the detachability of the base module can be achieved in a structurally simple manner.

[0038] Furthermore, the securing mechanism can have at least one rotatable securing element, wherein the rotatable securing element can be moved between a securing state and a release state by rotation. "Rotatable" in particular means rotatable about a rotation axis. The rotation axis can be arranged coaxially to the main extension direction and / or the longitudinal axis of the base module, for example. In the release state, the base module can be able to be placed into the receiving space of the operating module by the user in order to establish the operable state. In certain embodiments, by means of the rotatable securing element, an axial force can be able to be exerted on the base element and / or the operating module. The securing mechanism can further comprise a pre-tensioning element. Such a securing mechanism can have the features of high reliability and low failure rate. The user can obtain almost instant feedback of a proper securing. The securing state can in particular be visible to the user in a simple manner.

[0039] Furthermore, the receiving space can be openable and closable. "Openable" can mean that the receiving space can be accessible from the side. For example, a side of the receiving space can be detachable. In particular, the receiving space can also be openable and / or closable by the user. Advantageously, the operating safety and the user friendliness can be increased. The receiving space can have an open state and a closed state. In the open state, the base module can be able to be placed into the receiving space and / or taken out of the receiving space. In the closed state, the base module can not be able to be placed into the receiving space and / or taken out of the receiving space. Opening and / or closing the receiving space can comprise a mechanical movement of at least one component of the operating module, in particular by the user.

[0040] Furthermore, the base module can be able to be placed into the accommodation space in the open state of the accommodation space, and the housing can be fixed on the operating module in the closed state of the accommodation space. In particular, the housing can be able to be placed into the accommodation space. The housing can be able to be placed in and / or fixed by the user. In this context, "able to be placed into" in particular means "able to be fitted into". In particular, the base module, in particular the housing, can be able to be placed into the accommodation space from the side and / or along a direction perpendicular to the main extension direction and / or longitudinal axis of the base module and / or of the operating module and / or of the accommodation space. Advantageously, in the closed state, at least the housing is surrounded by the accommodation space, or the accommodation space at least substantially surrounds the housing. In particular, the control electronics can be able to be protected in this way. This can be able to prevent malfunctions. Advantageously, the operating safety can be improved. Furthermore, an advantage can lie in that the base module is in particular able to be placed into the accommodation space such that the user holds the housing of the base module. For example, the user can hold the housing of the base module and place it into the accommodation space, in particular fit it into the accommodation space. This is in particular advantageous when the base module is configured to be more stable and / or more robust in the region of the housing relative to other parts of the base module. For example, it can be made possible to place the base module into the accommodation space without holding the endoscope shaft. The risk of damage to the base module during the placement can be substantially reduced.

[0041] Furthermore, the base body can comprise at least two base body parts which are connected to one another in a hinged manner and are able to move relative to one another in order to achieve the opening and closing of the accommodation space. In particular, the two base body parts can be able to move in a pivotable manner relative to one another and / or define a pivot axis. For example, the pivot axis can be arranged parallel to the main extension direction and / or longitudinal axis of the base module. Thereby, the placement operation can be designed to be particularly simple and / or safe to handle. Furthermore, the endoscope can be particularly user-friendly.

[0042] Furthermore, the base body can comprise a holding portion. Advantageously, the holding portion can be configured in one piece and / or integrally with the base body. The holding portion can be configured to provide a high holding comfort for the user. In particular, the holding portion can be configured irregularly and / or asymmetrically. Operating costs and / or manufacturing costs can be reduced.

[0043] Furthermore, in the operable state, the holding portion can at least partially surround the housing. Thereby, a compact construction can be achieved. Furthermore, the endoscope can be handled and / or operated like a conventional endoscope. For example, the holding portion can completely surround at least one portion of the housing with respect to a longitudinal axis of the holding portion and / or a longitudinal axis of the housing. The holding portion can define a holding portion interior which is completely enclosed by an end face and / or an outer lateral face, at least one portion of the housing being arranged in the interior when the base module is in the inserted state. The holding portion can be at least partially cylindrical. The housing can be at least partially cylindrical.

[0044] Furthermore, in the operable state, the holding portion can at least partially be arranged distal with respect to the housing. For example, the circumference of the base module in the housing region can be greater than the circumference at the distal end of the housing. The housing and / or the holding portion can be configured such that a user's hand can at least substantially surround the holding portion, or in other words, the holding portion can be substantially held by the hand. The holding portion can also be configured such that the holding portion can be held by the hand at least partially surrounding it. At the distal end with respect to the housing, the circumference can be 0.1 times, 0.2 times, 0.3 times, 0.4 times, 0.5 times or 0.6 times the circumference in the housing region. In particular, the portion of the holding portion which is arranged distal with respect to the housing can be configured as a pen. "Pen" can mean that the portion can be held by a user like a writing pen is held. With such a holding portion design, precision can be improved. For example, the user can more easily, more precisely and / or more accurately align the endoscope to a certain anatomical structure. When a user holds an elongate object like a writing pen, the delicate feel of the object when positioning it is superior to the case where the object is held by a hand surrounding it and / or, for example, held in a fist.

[0045] Furthermore, in the operable state, the holding portion can at least partially be arranged proximal with respect to the housing. Furthermore, in the operable state, the holding portion can at least largely be arranged laterally and / or radially outside with respect to the housing.

[0046] Furthermore, a longitudinal axis of the holding portion can coincide with a longitudinal axis of the accommodation space. For example, the base module can be arranged substantially coaxially with the holding portion, in particular when the base module is in the inserted state. Advantageously, in this way a compact and cost-effective endoscope in terms of manufacture can be provided.

[0047] Furthermore, a longitudinal axis of the holding portion can be inclined with respect to a longitudinal axis of the accommodation space. The angle between the longitudinal axis of the holding portion and the longitudinal axis of the accommodation space can be in the range of 0° to 179°, in particular 25° to 145°, preferably 45° to 120°, in particular preferably 75° to 100°. Advantageously, handling comfort can be improved. Furthermore, the endoscope can be able to be held and / or operated in a more ergonomic manner.

[0048] Furthermore, the holding portion can be a pistol grip. The pistol grip has the advantage of a very high handling comfort and an ergonomic grip. Ergonomic can mean that the user's wrist does not have to, and / or only has to be slightly bent during use of the endoscope. In particular, the pistol grip can demonstrate its advantages when the main extension direction of the base module is at least substantially perpendicular to the user's front during use.

[0049] Furthermore, the holding portion can have a diameter which is smaller than the diameter of the housing. Advantageously, the diameter of the holding portion can be configured such that the endoscope, in particular the holding portion, can be easily and comfortably held by the user. The holding portion can have portions of different diameters, wherein there can be at least one portion which has a diameter which is smaller than the diameter of the housing.

[0050] Furthermore, the holding portion can have an ergonomic outer shape. A high comfort can be achieved. Furthermore, it can be achieved that the endoscope can be operated by the user for a long time. This can enable the user to provide an ergonomic endoscope. The ergonomic outer shape can be an outer shape which is adapted to the human hand. The holding portion can have outer shape elements which are dimensioned, spaced and / or oriented in such a way that they are adapted to the inner side of the human palm and / or to the palmar side of at least one finger. These data refer in particular to the average anatomy of an adult human being, for example a female and / or a male.

[0051] Furthermore, the operating module and the base module can jointly constitute a directional aid which defines a preferred position and / or a preferred orientation of the housing relative to the operating module. The preferred position and / or the preferred orientation can be defined in particular in dependence on the properties of the base module. The preferred position and / or the preferred orientation can be in particular a preferred radial position and / or a preferred orientation. Alternatively or additionally, the preferred position and / or the preferred orientation can be in particular a preferred axial position and / or a preferred orientation. The preferred radial position and / or the preferred orientation can in particular relate to the relative position between the respective longitudinal axes. For example, the base module can be configured asymmetrically. By means of the directional aid, a repeatable and error- free placement of the base module can be achieved.

[0052] Furthermore, the directional aid can also comprise at least one guide tab and a guide groove configured to correspond to the guide tab. In certain embodiments, the guide tab and / or the guide groove can extend along the longitudinal axis of the housing and / or the holding portion. Furthermore, a plurality of guide tabs and / or guide grooves can be provided. For example, the directional aid can comprise two, three, four, five and / or six guide tabs and / or guide grooves. The guide tab and / or the guide groove have the advantage of a particularly safe and / or reliable guidance. The base module can be guided particularly safely within the operating module. Furthermore, a high operating safety can be achieved.

[0053] Furthermore, the base module can comprise at least one manipulation element by means of which at least one function of the base module can be controlled, and the operating module can comprise at least one manipulation element which, in the operable state, acts on the manipulation element in such a way that a manipulation of the manipulation element by the user, in particular, triggers a manipulation of the manipulation element. The base module can comprise one, two, three, four, five or six manipulation elements, and / or the operating module can comprise one, two, three, four, five or six manipulation elements. In particular, the base module can comprise a greater number of manipulation elements than the operating module. The controllable functions of the base module can comprise, for example, an image acquisition function, in particular an acquisition start, an acquisition stop and / or an acquisition frequency; an illumination function, in particular an illumination light wavelength and / or an illumination light intensity; a base module mode, comprising, for example, a white light mode, a multi- and / or hyperspectral mode, a red light mode, a blue light mode, a green light mode, a video mode, a guidance mode in which the application is supported by guidance elements displayed simultaneously with the image data, and / or a focus mode; a control of an actuator which is adapted to move at least one part of the base module; and / or a cooling function, in particular a cooling function of the base part. The "acting" can comprise a non-contacting acting. The manipulation elements can comprise, for example, sensors which at least partially capture a movement of the manipulation element. For example, a switch position of the manipulation element can also be able to be captured in which the acting can be triggered. Alternatively or additionally, the manipulation element can be so designed that it acts on the manipulation element in a mechanical manner. Each manipulation element and / or manipulation element can be provided with a plurality of switch positions in which a respective manipulation can be triggered. The manipulation elements can comprise buttons, keys, switches and / or similar components. In particular, the manipulation elements can be radially supported in an operating handle, in particular a base body. The operating handle, in particular the base body, can comprise a manipulation element guide assembly. In particular, the manipulation element guide assembly can comprise a linear guide. Advantageously, the operating handle does not need to comprise a through-hole to the base module which is designed in such a way that a manipulation by the user is possible.

[0054] Furthermore, the manipulation elements can be rotatable and the manipulation of the manipulation elements can be performed depending on a rotational position of the manipulation elements. Advantageously, the functions can be able to be adjusted in a gradient. This can be particularly advantageous in the process of adjusting an illumination light intensity, controlling a movable part of the base module and / or controlling a focal plane of at least one image sensor.

[0055] Furthermore, the manipulation elements and / or the manipulation elements can comprise at least one magnet. The manipulation, the manipulation recognition and / or the manipulation transmission can be realized on the basis of a magnetic force. In particular, the magnets can be permanent magnets. Magnets can be a cost-effective and mass-producible component. The endoscope, in particular the operating module, can be able to be manufactured at low cost and / or have a simple structural design.

[0056] Furthermore, the manipulation element can comprise a Hall sensor. Hall sensors are particularly characterized by their small installation space, their insensitivity to interfering factors, such as liquids, dust, dirt, high and / or low temperatures, low and / or high light, etc., and their high switching speed. Furthermore, Hall sensors can have cost advantages in terms of procurement and / or operation. Advantageously, an endoscope can be provided which is reliable in operation and / or less prone to failure.

[0057] Furthermore, the base module can comprise at least two functionally identical manipulation elements which are arranged at different circumferential positions, in particular opposite to each other with respect to the longitudinal axis of the accommodation space, and which are each adapted to cooperate with the manipulation element. For example, the base module can be able to be rotated by 180° about the longitudinal axis of the housing and to be placed into the operating module in the relevant rotational position. This can be advantageous in particular when the base module is configured at least partially asymmetrically. Advantageously, the operating module can be configured to manipulate the base module in at least two rotational positions thereof, in particular without the operating module having to be rotated for this purpose. For example, a user can remove the base module and take it out of the operating module. Subsequently, the user can rotate the base module about the longitudinal axis, in particular by 180°, and place the base module in the new rotational position into the operating module and / or secure it therein.

[0058] The base module can further comprise a shaft with a distal portion and a proximal portion, wherein the proximal portion is mounted on the housing. The distal portion is in particular configured to be introduced into and / or to be located within a body cavity to be examined in the working state, e.g. during a diagnostic and / or therapeutic action. The proximal portion is in particular configured to be arranged outside the body cavity to be examined in the working state, e.g. during a diagnostic and / or therapeutic action. "Distal" is in particular to be understood as the side which, in use, is closer to the patient and / or further away from the user. "Proximal" is in particular to be understood as the side which, in use, is further away from the patient and / or closer to the user. In particular, the proximal and the distal side are opposite. The shaft can be an elongated object. Furthermore, the shaft can at least partially, and preferably at least predominantly, constitute the distal portion. For example, the shaft can have a diameter which is smaller than the diameter of the housing. The shaft can be adapted to be fed into a body cavity of a patient. The shaft can have a diameter, in particular a main diameter of the shaft, of 1 mm to 50 mm, in particular of 4 mm to 25 mm, preferably of 7 mm to 15 mm. The shaft can be arranged coaxially to the longitudinal axis of the housing. Furthermore, the shaft can be rigid and / or flexible. In particular, the distal portion can be provided flexible, controllable and / or bendable. In particular, the shaft can comprise a mechanical element which enables the shaft to be controlled. The shaft can extend along a main extension direction of the base module. In particular, the shaft can predominantly define this main extension direction. The shaft can for example account for 20% to 95%, in particular for 40% to 90%, preferably for 60% to 85% of the main extension of the base module along the main extension direction. Furthermore, the shaft can comprise a heat pipe and / or a tube. In particular, the heat pipe and / or the tube can extend along the shaft, in particular from the distal portion to the proximal portion. The heat pipe and / or the tube can extend beyond the proximal portion, in particular to the interior of the housing. The tube can be connected to the control electronics. In particular, the tube can be adapted to connect controllable and / or electronic elements to the control electronics.

[0059] Furthermore, the shaft can be configured as a replaceable shaft. The replaceable shaft can be connectable to the base module and / or to the operating module in a detachable manner. In particular, the endoscope can comprise a connection unit, in particular a connector, which is adapted to connect electronic elements of the replaceable shaft to the control electronics. Furthermore, different replaceable shafts, or in other words, replaceable shafts which realize different functions, can be connectable. It can be advantageous that the replaceable shaft can be detachably connected to the housing without tools.

[0060] Furthermore, the distal portion can comprise a camera and / or a light source. The camera can comprise an image sensor and / or optics. The image sensor can be, for example, a CCD chip or a CMOS chip. According to some embodiments, the camera can comprise more than one image sensor. For example, the camera can be a stereo camera and / or comprise two image sensors. In some embodiments, the camera can be configured to generate digital image data. Alternatively or additionally, the camera can be configured to generate analog image data. In particular, the camera can comprise a computing unit configured to generate digital image data from analog image data. The light source can comprise an illumination element. Furthermore, the light source can comprise a plurality of illumination elements. According to some embodiments, the light source can comprise LEDs and / or laser diodes. At least one of the illumination elements can be a white light illumination element, in particular a white light LED. The control electronics can be adapted to supply the light source with application-specific and / or operating state-specific electrical energy. Application-specific / operating state-specific can in particular mean that the light intensity and / or emission spectrum of the illumination elements can be adjusted with respect to the application / operating state. In some cases, this can be achieved by mixing light from different illumination elements and / or selectively enabling and / or disabling certain illumination elements for different applications / operating states. The light intensity can be adjusted automatically and / or by a user. The connection unit can be adapted to connect the camera with the control electronics and to transmit image data from the camera to the control electronics. Since the distal portion comprises a camera and / or a light source, advantages can be achieved, in particular it is advantageous that light received by the distal portion can be conducted to the proximal end of the shaft without the aid of optical elements such as optical fibers, light guides, lenticular lenses, etc. In this way, for example, imaging errors that can occur due to guiding light along the shaft can be reduced and / or avoided. Furthermore, a small shaft diameter can be achieved, since the shaft only needs to contain electrical wires and no optical components. Furthermore, it is not necessary to provide a light conductor that conducts illumination light to the distal portion. Overall, it is possible to achieve a small shaft diameter while ensuring a high image quality.

[0061] Furthermore, the distal portion can comprise at least one optical element defining a main viewing direction, wherein the main viewing direction is inclined with respect to the longitudinal axis of the shaft. Furthermore, the main viewing direction can coincide with the main extension axis and / or the longitudinal axis of the housing. The optical element can for example be a lens of the optics. Furthermore, the optical element can have such a light transmission that light from outside the shaft, in particular in terms of spectral composition and / or image plane, is able to enter the distal portion almost without changes. According to some embodiments, the main viewing direction can form an angle with the longitudinal axis of the shaft and / or the main extension axis. The angle can be a reference measure for the angular indication of the main viewing direction. This can mean that the main viewing direction is 0° if it is parallel to the longitudinal axis of the shaft. The main viewing direction can generally be between 0° and 90°. Preferred main viewing directions are at least 0°, 10°, 20°, 30°, 40°, 45°, 60°, 75°, 90°. The main viewing direction can be oriented within an angular range of + / - 5° starting from one of these values. The image sensor can be arranged orthogonally to the main viewing direction. According to other embodiments, the image sensor can be arranged such that the longitudinal axis of the shaft extends partially along the image sensor. By means of the inclined main viewing direction, the range of imaging and / or viewing of the endoscope can be able to be expanded. In particular, the base module can be able to be rotated by 180° about its longitudinal axis and be able to be repositioned into the operating module. This can in particular be advantageous when the main viewing direction is in an inclined state. For example, the user can expand the viewing range in this way, wherein the operating module can be used in a preferred orientation.

[0062] Furthermore, the endoscope can comprise a supply cable, which is connected and / or connectable with the base module. The supply cable can be adapted to transmit electrical energy, analog and / or digital data, in particular image data and / or control signals. "Connectable" can mean that the supply cable can be connected simply and / or quickly. In particular, the connection does not require the operation of a specialist. Advantageously, there need not be an association between the operating module and the supply cable. In particular, the supply cable can be connected and / or connectable independently of the operating module.

[0063] Furthermore, the supply cable can be permanently connected with the base module. Advantageously, a seal, in particular a gas seal and / or a fluid seal, can be ensured. In particular, the supply cable can be adapted to be sterilized and / or autoclaved. Furthermore, a misuse can also be prevented.

[0064] In addition, the base module and the supply cable can jointly form a plug connector. Advantageously, the plug connector can be constructed independently of the operating module. Thereby a simplification of the structure can be achieved and / or differently constructed operating modules can be able to be used.

[0065] Furthermore, the supply cable can be a coaxial cable. Furthermore, the base module, in particular the control electronics, can comprise a serializer and / or a filter which is adapted to integrate a plurality of data signals and / or power-related signals and / or currents into one differential pair and / or to provide the communication and / or the power supply via the differential pair. Due to the provision of the coaxial cable, there is no preferred insertion direction of the supply cable. The handling of the endoscope, in particular the insertion of the supply cable, can be made simple and fast. Furthermore, the risk of misoperation can be reduced. In particular, the user does not have to pay particular attention when inserting the supply cable.

[0066] Furthermore, in the connected state, the supply cable can be rotatable relative to the base module. "Rotatable" can in particular mean that the supply cable is provided in a rotatable mounting. For example, the supply cable, in particular the coaxial cable, can be fixed only against axial displacement. Advantageously, there is no preferred orientation of the supply cable relative to the base module. The base module can be rotatable during operation. In particular, the risk of twisting and / or knotting of the supply cable can be reduced at least. Thereby, the handling safety can be improved.

[0067] Furthermore, the cable exit direction of the supply cable from the base module can be inclined relative to the longitudinal axis of the base module. "Cable exit direction" can mean that, in the connected state, the supply cable comprises a rigid portion in the vicinity of the base module which deflects the extension direction of the supply cable. For example, this can prevent the supply cable from hindering the user and / or the user from damaging the supply cable. Thereby, the handling safety and / or the durability of the endoscope can be improved.

[0068] Furthermore, the base body can constitute an opening on its proximal side, through which the base module can be inserted into the accommodation space. In this context, "can be inserted" can in particular mean "can be pushed in". In particular, the opening can have a diameter which is at least comparable to the diameter of the base module, in particular the housing. Advantageously, the housing of the base module can be able to be held in order to perform the insertion. In particular, this can be able to avoid that the shaft of the base module has to be held. Holding the shaft can for example lead to a plastic deformation of the shaft and / or to a damage of components comprised by the shaft, in particular the rod lens. Furthermore, the insertion can be able to be performed quickly and simply by the user. In particular, the insertion can be able to be performed during a treatment and / or examination of a patient.

[0069] Furthermore, the control electronics can be hermetically encapsulated. In particular, the housing can hermetically encapsulate the control electronics. Advantageously, thereby a base module can be provided which is sterilizable, easy to sterilize and / or autoclavable.

[0070] Furthermore, the operating module can be adapted to be autoclaved and / or sterilized separately from the base module. The operating module can be able to be arranged in a sterile outer packaging. The user can take the operating module out of the sterile outer packaging. This makes it possible, for example, to quickly and reliably exchange the operating module, in particular without the user having to worry about the sterilization status of the operating module. The operating module can always be available and / or be able to be quickly ready for use. This can mean that, during the treatment of a patient, the user can, for example, have various sterile operating modules available. The base module can be able to be placed into the operating module as required. However, the user does not need multiple base modules, which can reduce the cost of treatment. After the treatment has been completed, the relevant operating module and the relevant base module can be able to be autoclaved and / or sterilized separately. Thus, they can be ready for further use at any time. A plurality of sterile disposable products can be able to be provided, each of which can comprise a sterile outer packaging and at least one operating module. The sterile disposable products can in particular be stored for a long period of time and / or be able to be reserved.

[0071] Furthermore, the operating module can be at least partially, in particular at least predominantly, made of plastic, in particular a polymeric material. Here, the expression "at least predominantly" is to be understood in particular as meaning at least 55%, preferably at least 65%, more preferably at least 75%, particularly preferably at least 85%, very particularly preferably at least 95%, and advantageously 100%, in particular with respect to the volume and / or the mass of a component. The plastic can be a thermoplastic and / or a thermoset and / or an elastomer, and / or comprise the aforementioned materials. Furthermore, the base can be made of a sustainable material, in particular a degradable and / or recyclable material. The plastic can be a bioplastic and / or a bio-based plastic, for example a plastic based on renewable raw materials and / or a biodegradable plastic, and / or comprise the aforementioned materials. Advantageously, it can be possible to provide a cost-effective operating module. Furthermore, such a plastic can have a thermal insulation effect, in particular compared to metal. Thus, the operating module can be able to be handled more easily by the user. In particular, an overheating of the operating module, in particular of the grip portion, beyond a limit temperature which the user still perceives as comfortable can be prevented. This makes it possible to provide a larger number of illumination elements and / or illumination elements with a higher power, or to use a higher power when the illumination elements are in operation, as required. In particular in an emergency situation, it is thus possible to use a higher maximum illumination intensity at least temporarily, without the user being unable to operate due to a temperature problem, or to hold the endoscope safely due to an overheating of the latter.

[0072] Furthermore, the base body can be produced by means of injection molding and / or additive manufacturing. The base body can be configured in one piece and / or integrally. In particular, the base body can be an injection-molded part. In other embodiments, the base body can be configured as a two-part and / or multipart structure. In particular, when the base body is configured as a two-part and / or multipart structure, it can be permanently combined together. Furthermore, the base body can have the feature of being easy to manufacture and / or having a low material usage. In particular, a particularly simple manufacturability can be achieved when the base body can be ejected integrally, in particular in a direction parallel to the main extension direction and / or parallel to the longitudinal axis of the base body. In some embodiments, the base body can be produced from two half-shells, which are bonded to each other and / or welded to each other, for example by means of ultrasonic welding.

[0073] Furthermore, the operating module can be a disposable product. In particular, the operating module can replace and / or make unnecessary a sterile disposable sheath. In particular, the provision of a sterile disposable sheath can be very time-consuming. By dispensing with the provision of a sterile disposable sheath, a considerable time saving can be achieved. Furthermore, the entire process can be simplified and / or the operating costs of the endoscope can be more economical. Furthermore, the personnel required for operating the endoscope can also be reduced.

[0074] Furthermore, in the steerable state, the longitudinal axis of the base module can coincide with the longitudinal axis of the accommodation space. In particular, the longitudinal axis of the base module can coincide with the main extension axis and / or the longitudinal axis of the shaft. In particular, the base module can be configured to be particularly rotationally symmetrical in shape. The endoscope can have the features of being structurally simple and requiring little installation space.

[0075] Furthermore, the operating module can comprise at least one sealing element, which forms a seal to the base module in the steerable state. In particular, in the steerable state, the accommodation space can not be completely filled by the base module. In other words, a gap can exist between the base module and the wall of the operating module. The at least one sealing element can be adapted to seal the accommodation space gas-tight and / or liquid-tight. For example, the operating module can have the at least one sealing element only on one side, in particular on the end face and / or on the distal side. The at least one sealing element can in particular form a seal to the base module on the distal side of the operating module. In particular, the sealing element can form a seal to the base module in the region around the shaft. Advantageously, contamination of the inside of the operating module and / or of the base module, in particular of the housing of the base module, can be prevented and / or at least largely reduced. Furthermore, it can be possible in particular to prevent, for example, liquid from flowing along the shaft into the gap between the operating module and the base module. As a result, the endoscope can be more economical and more reliable in operation and can be steered for a longer period of time. Furthermore, the heat dissipation of the base module can not be and / or only be slightly affected.

[0076] The operating module can further comprise at least one air inlet at a distal portion of the operating module and at least one air outlet at a proximal portion of the operating module, wherein the at least one air inlet is in connection with the at least one air outlet. Thereby, an air circulation can be achieved, which can be particularly advantageous for cooling the base module by means of convection. In particular, an air circulation can be achieved in the gap. In particular, it can be achieved that the control electronics can be kept below a limit temperature range. Above this limit temperature range, the functionality of the control electronics can be limited. Furthermore, waste heat of the distal portion of the shaft, for example, can particularly be able to be conducted along the shaft to the housing by means of heat pipes. The waste heat can particularly warm up the housing. In this regard, the housing can have the function of a heat sink. Furthermore, the base module can comprise a further heat sink, for example, a cooling body comprising cooling fins, and / or a copper plate. Furthermore, the base module can comprise a portion which has an increased surface, for example, by providing cooling fins, and / or which is composed of a material having good heat conduction properties. The air inlet can be adapted to introduce air, in particular cooling air, into the accommodation space, wherein cooling of the base module, the control electronics, the housing and / or the further heat sink can be achieved by means of the air. Advantageously, it can be possible to provide a more powerful control electronics, a camera and / or a light source. Furthermore, the handling of the endoscope can be more comfortable for the user. In particular, a warming up of the operating module, in particular of the grip portion, can be prevented and / or reduced.

[0077] Furthermore, when the operating module is made of plastic, it can be particularly advantageous to provide an air inlet and / or an air outlet. Due to the thermal insulation of the plastic, the heat dissipation of the base module can be greatly reduced. By providing an air inlet and / or an air outlet, in particular, even when a plastic operating module is provided, cooling of the base module can be ensured. Advantageously, by providing a cooling effect, the operating module and the base module can have a synergistic effect. The operating module can be economical and / or comfortable to use, while the base module can be high-performance.

[0078] Furthermore, the at least one air inlet can be connected with the at least one air outlet via an air channel, wherein in the operable state, a radially inner surface of the air channel is defined by the housing. Furthermore, a radially lateral surface of the air channel can be defined by the directional aid, in particular by the at least one guide fin. Also, a radially outer surface of the air channel can be defined by the operating module. The air channel can in particular extend along a substantial portion of the housing. For example, the air channel can extend along at least 30%, in particular at least 60% and / or preferably at least 80% of the housing, in particular along the longitudinal axis of the housing. Advantageously, the housing can be able to be cooled particularly efficiently. By guiding the air directly along the housing, the cooling performance can be higher.

[0079] Furthermore, the air channel can be hollow-cylindrical. This can mean that the air channel extends over a large part of the circumference of the housing and / or of the base module. In particular, the air channel can surround and / or enclose the housing. The surface of the base module, in particular of the housing, which is used for cooling, can be increased and / or a particularly efficient cooling can be achieved.

[0080] Furthermore, the operating module can comprise a coolant communication interface via which a cooling fluid can be introduced into the accommodation space. The cooling fluid can in particular be introduced into and / or removed from the coolant communication interface by means of a hose. In particular, the system can comprise a cooling fluid delivery device. The cooling fluid delivery device can comprise a pump and / or a heat exchanger. For example, by means of the pump, the cooling fluid can be able to be delivered to the operating module in a first state. Within the accommodation space, the coolant can in particular be in contact with the base module, or rather absorb the enthalpy of the base module, in particular in order to cool the base module. By absorbing the enthalpy, the cooling fluid can enter a second state. Furthermore, the cooling fluid can be able to be delivered to the cooling fluid delivery device, in particular to the heat exchanger. The heat exchanger can be adapted to convert the cooling fluid from the second state into the first state. The cooling fluid can be a special-purpose cooling fluid having application- and / or operation-specific properties. Furthermore, the cooling fluid can be water, in particular distilled water. Cooling by means of the cooling fluid can in particular result in a better cooling performance compared to cooling by means of air and / or convection.

[0081] Furthermore, in the operable state, the accommodation space can be sealed with respect to the environment. In particular, a better and / or more efficient cooling effect can thus be achieved. For example, cooling air can be able to be introduced into the accommodation space via the air introduction channel. For example, air at a pressure higher than the ambient pressure can be able to be introduced. By means of the sealing, an air circulation can be able to be thus induced, which can be able to force air to be discharged from the at least one air outlet. Thus, the air circulation can be able to be set up to be more efficient and / or more easily adjustable.

[0082] Furthermore, the endoscope can comprise a cooling module, wherein the base body defines a cooling module accommodation space into which the cooling module can be placed, and wherein, in the operable state, the cooling module and the base module are at least in thermal contact when the cooling module is in the placed state. Advantageously, the cooling module can be set up for cooling the base module. If the cooling performance of the cooling module decreases during operation of the endoscope, the cooling module can be able to be replaced by a further cooling module, which can have the same properties as the original cooling module. In particular, the user can exchange the cooling module for the further cooling module. By means of the further cooling module, the base module can be able to be efficiently cooled again. In particular, the cooling module can be configured to absorb and / or store a large amount of enthalpy in a small installation space. Advantageously, a good cooling performance can be achieved.

[0083] Furthermore, the cooling module can comprise and / or be configured as a latent heat store. The latent heat store can be adapted to store the absorbed thermal energy, in particular heat, in the form of latent heat. For example, the absorbed energy can be stored by a phase change of a medium, for example from a solid state to a liquid state. The latent heat store can comprise a phase change material. Advantageously, good heat storage performance can be achieved while at the same time the installation space is small.

[0084] Furthermore, the cooling module accommodation space can be open to the accommodation space, and in the operable state, the cooling module, by which the cooling module is placed into the cooling module accommodation space, can be able to form physical and thermal contact with the base module. Thereby, the transfer of thermal energy can take place particularly efficiently. The cooling module can be pressed onto the base module when being placed, so that both physical contact and thermal contact can be established. The cooling module can be laterally fitted onto the base module. Furthermore, the structure can be simpler, since in particular no further heat-conducting elements are provided. The endoscope can be more economical and efficient.

[0085] Furthermore, the base module and / or the cooling module can have a heat-conducting deformable element, which in the operable state and in the placed state is fitted onto the cooling module or the base module. For example, if two rigid objects are brought into contact for heat exchange, an air gap can be formed between the two, which is thermally insulating. The heat transfer can thus be reduced and / or be influenced. By providing a heat-conducting element, these air gaps can for example be filled. This can mean that the area which participates to a large extent in the heat transfer is increased. In principle, the heat exchange area can be increased. The efficiency and / or the cooling effect of the endoscope can thereby be improved. In particular, a more powerful base module can be provided. Furthermore, the user's comfort of use can be improved. The heat-conducting deformable element can for example be composed of heat-conducting rubber. Alternatively or additionally, a deformable metal structure can be provided.

[0086] Furthermore, in the operable state and when the cooling module is in the placed state, the cooling module can exert a force on the base module. In particular, an interaction with the deformable element can be achieved. For example, a force can be exerted on the deformable element in order to increase the heat exchange area and / or to improve the thermal contact. Furthermore, the heat exchange area can generally be increased. The efficiency and / or the cooling effect of the endoscope can thereby be improved. In particular, a more powerful base module can be provided.

[0087] Furthermore, the operating module can be adapted to be mounted on a holder of a medical robot and to enable the base module to be operated by the robot. Moreover, the operating module and the holder can jointly form a component. Furthermore, the operating module can be permanently mounted on the robot and / or be able to be permanently mounted on the robot. Advantageously, the base module can be enabled to be quickly and efficiently operated by the robot. In particular, the base module can be quickly and efficiently replaced by other base modules, in particular by base modules configured differently.

[0088] In this case, the device and system according to the invention and the method according to the invention should not be limited to the above-mentioned applications and embodiments. In particular, the number of these elements, components and units and method steps can differ from the number mentioned herein in order to achieve the functions described herein. Furthermore, values within the ranges specified in the present disclosure, including values within the stated limits, are to be considered disclosed and can be used as desired.

[0089] It is expressly pointed out that all features and properties described with regard to the device as well as the method can be transferred to the method accordingly and can be used in the sense of the invention and are considered to be disclosed jointly. The same applies to the opposite direction. This means that within the scope of the device claims, structural features related to the method can also be considered, claimed and calculated in the disclosure, i.e. according to the structural features of the device.

[0090] The invention is explained below by way of example with reference to the accompanying drawings. The combination of drawings, description and claims contains a number of features. These features will also be considered individually by the person skilled in the art and used in combination within the scope of the claims.

[0091] If a given object has more than one copy, only one of them can be provided with a reference sign in the drawings and the description. The description of this copy can be transferred to the other copies of the object accordingly. If objects are named in particular by means of numerical words, such as first, second, third object, etc., these are used for naming and / or assigning the objects. Thus, for example, a first object and a third object can be included, but not a second object. However, the number and / or sequence of the objects can also be derived additionally from the numerical words. BRIEF DESCRIPTION OF DRAWINGS

[0092] In the drawings:

[0093] Figure 1 Schematic representation of a system showing an endoscope;

[0094] Figure 2 Schematic representation showing the distal end of the shaft of an endoscope;

[0095] Figure 3 Schematic representation showing the base module of an endoscope in side view;

[0096] Figure 4 Schematic representation showing the operation module of an endoscope in side view;

[0097] Figure 5 Schematic representation showing the operation module as viewed from the proximal side of the operation module;

[0098] Figure 6 Schematic representation showing another endoscope;

[0099] Figure 7 A schematic view of a further endoscope is shown;

[0100] Figure 8 A schematic view of a further endoscope is shown; Figure 7 A schematic view of a further endoscope is shown;

[0101] Figure 9 A schematic view of a further endoscope is shown; Figure 7 A schematic view of a further endoscope is shown;

[0102] Figure 10 A schematic view of a further endoscope is shown;

[0103] Figure 11 A view of the fixing mechanism from its proximal side is shown;

[0104] Figure 12 A schematic view of a further endoscope is shown;

[0105] Figure 13 A schematic view of a further endoscope is shown;

[0106] Figure 14 A schematic view of a further endoscope is shown;

[0107] Figure 15 A schematic view of a further endoscope is shown;

[0108] Figure 16 A schematic view of a further endoscope is shown;

[0109] Figure 17 A schematic view of a further endoscope is shown;

[0110] Figure 18 A schematic view of a further endoscope is shown;

[0111] Figure 19 A schematic view of a further endoscope is shown;

[0112] Figure 20 A schematic view of a further endoscope is shown;

[0113] Figure 21 A schematic view of a further endoscope is shown;

[0114] Figure 22 A schematic view of a further endoscope is shown;

[0115] Figure 23 A schematic view of a further endoscope is shown;

[0116] Figure 24schematic view of the endoscope from a proximal side;

[0117] Figure 25 schematic view of the endoscope from a proximal side;

[0118] Figure 26 schematic view of the endoscope from a proximal side;

[0119] Figure 27 schematic view of the endoscope from a proximal side;

[0120] Figure 28 schematic view of the endoscope from a proximal side;

[0121] Figure 29 schematic view of the endoscope from a proximal side;

[0122] Figure 30 schematic view of the endoscope from a proximal side;

[0123] Figure 31 schematic view of the endoscope from a proximal side;

[0124] Figure 32 schematic view of the endoscope from a proximal side; and

[0125] Figure 33 schematic view of the endoscope from a proximal side. DETAILED DESCRIPTION

[0126] Figure 1 A system 10 is shown, which comprises a power supply unit 12, a display unit 14, an endoscope 20 and a sterile disposable product 134. The endoscope 20 comprises a base module 22. The base module 22 has a housing 24 and control electronics 26, which are hermetically encapsulated.

[0127] Furthermore, the endoscope 20 comprises an operating module 28. The operating module 28 is adapted to make the base module 22 operable. Furthermore, the operating module 28 comprises a base body 30, which defines a receiving space 32 for the base module 22. The base module 22 can be placed by a user into the receiving space 32 of the operating module 28 to establish an operable state. In the shown case, the base module 22 has been placed into the receiving space and the endoscope 20, in particular the base module 22, is in an operable state.

[0128] In principle, the user can take the base module 22 out of the operating module 28 and place a further base module into the receiving space 32 of the operating module 28. It is thereby possible to bring the further base module into an operable state.

[0129] The operating module 28 and the base module 22 together form a fixing mechanism 34, which is only schematically shown, by means of which the base module 22, in particular the housing 24, can be detachably fixed on the operating module 28. In particular, the base module 22 can be detached and / or fixed on the operating module 28 without tools.

[0130] The operating module 28 is adapted to enable the base module 22 to be operated and manipulated by a user. By placing the base module 22 in the accommodation space 32, an operable state can be established. In this regard, the base body 30 comprises a grip portion 44. The grip portion 44 has Figure 1 an ergonomic outer shape, which is not shown in the figures. In the operable state, the grip portion 44 completely surrounds the housing 24. The longitudinal axis of the grip portion 44 coincides with the longitudinal axis of the accommodation space 32. These longitudinal axes in turn coincide with the axis 86, which is drawn in Figure 1 the figures. In the operable state, the longitudinal axis of the base module 22 also coincides with the longitudinal axis of the accommodation space 32. The main extension of the base module 22 and / or of the accommodation space 32 and / or of the grip portion 44 is parallel to the above-mentioned longitudinal axis or to the axis 86.

[0131] The operating module 28 is at least partially, in particular at least predominantly, made of plastic. Furthermore, the base body 30 is made by means of injection molding. Alternatively, the base body 30 can be made by means of additive manufacturing, i.e. by means of an additive manufacturing process. In particular, the operating module 28 is made in a cost-effective and / or material-saving manner. In the present case, the operating module 28 is provided to be single-use. It can possibly be referred to as Single-Use. Furthermore, the operating module 28 and / or the base module 22 are adapted to be individually autoclavable and / or sterilizable. In particular, the operating module 28 is adapted to be autoclavable and / or sterilizable independently of the base module 22.

[0132] Furthermore, the operating module 28 comprises a manipulation element 64, Figure 1 two of which are exemplarily shown in the figures. It is, however, conceivable that a different number of manipulation elements 64 can be provided. The manipulation elements 64 are arranged on the grip portion 44 and / or are part of the grip portion 44. By means of the manipulation elements 64, the base module 22 can be operated by a user. In this regard, the manipulation elements 64 are in particular indirectly acting. In other words, the manipulation elements 64 are not part of the base module 22, but in some way act on the base module, so that it becomes possible for a user to manipulate the base module 22 by manipulating the manipulation elements 64.

[0133] In the present example, the base module 22 comprises a shaft 70 having a distal portion 72 and a proximal portion 74, wherein the proximal portion 74 is mounted on the housing 24. The distal portion 72 comprises a camera 78 and / or a light source 80. Exemplarily, the shaft 70 is 40 centimeters long and has a diameter of 2 centimeters. The longitudinal axis of the shaft 70 coincides with the longitudinal axis of the base module 22, the longitudinal axis of the accommodation space 32, the longitudinal axis of the grip portion 44 and the axis 86.

[0134] The shaft 70 comprises a not shown heat pipe and a not shown line. The heat pipe and / or the line extend along the shaft 70 from the distal portion 72 to the proximal portion 74, in particular. The heat pipe and / or the line exit the proximal portion 74 into the housing 24 of the base module 22 and / or the operating module 28 or are connected and / or connectable with the housing 24 and / or the base module 22 via a suitable interface. The line is connected with the control electronics 26. The line is adapted to connect controllable and / or electronic components with the control electronics 26. In particular, the line connects the camera 78 and / or the light source 80 with the control electronics 26. The heat pipe conducts waste heat generated by the camera 78, the light source 80 and / or other electronic components during operation along the shaft 70 to the housing 24 of the base module 22.

[0135] The distal portion 72 comprises an optical element 82 defining a main viewing direction 84. The main viewing direction 84 is inclined with respect to the axis 86, in particular by 45°. The optical element can for example be a lens mounted at a certain angle with respect to the longitudinal axis of the shaft 70.

[0136] The camera 78 comprises a not shown image sensor, for example a CCD chip or a CMOS chip. In some embodiments, the camera 78 can comprise a stereo camera and / or comprise two image sensors. The camera 78 is adapted to generate image data.

[0137] The light source 80 comprises a not shown illumination element. The light source 80 can also comprise a plurality of illumination elements. The illumination element is for example a LED, in particular a white LED. The light source 80 can be multi-modal, selectively providing illumination light of different spectral ranges. Furthermore, the light source 80 can be adapted to provide the illumination light continuously and / or pulsed. The brightness of the light source 80 can be automatically adjusted and / or adjusted by the user. The control electronics 26 is adapted to supply the light source 80 with application-specific and / or operating state-specific electrical energy. The line is adapted to transmit image data of the camera 78 to the control electronics 26.

[0138] In other embodiments, the power supply unit 12 can also provide illumination light for the endoscope 20. For example, an illumination device can be provided, which provides illumination light for imaging. The endoscope 20 can be coupled via a light guide cable and the illumination device and / or can be coupled. In this case, a suitable light guide element can be provided in the shaft 70 of the endoscope 20, by means of which illumination light can be guided to the distal end 72. In this case, the light source 80 can be dispensed with or can be additionally provided. In other embodiments, a separate illumination device and / or illumination light source can be provided.

[0139] In the present case, the base module 22 is also connected with a power supply cable 88. In some embodiments, the power supply cable 88 can be permanently installed on the base module 22 and / or be part thereof. In the present case, the power supply cable 88 is detachable. The power supply cable 88 is a coaxial cable and is adapted to be able to be subjected to sterilization and / or autoclave sterilization. In the connected state, the power supply cable 88 is rotatable relative to the base module 22. In particular, the power supply cable 88 is rotatable about the longitudinal axis 96 of the base module. The base module 22 comprises a power supply cable bearing device (not shown) adapted thereto. The power supply cable 88 is connected with the power supply unit 12 and is adapted to supply the base module 22, in particular the control electronics 26, with electrical energy and to enable data exchange. In particular, the image data generated by the camera 80 are transmitted to the power supply unit 12 by means of the power supply cable 88. The power supply unit 12 is also connected with the display unit 14. The display unit 14 is adapted to present the image data to the user.

[0140] The user can use the endoscope 20 for diagnostic and / or therapeutic actions. For example, the user can introduce the shaft 70 into a body cavity of a patient in order to observe the anatomical structure 16. The anatomical structure 16 is presented to the user by means of the display unit 14. It can occur that the user is limited in his subjective viewing direction 84 when performing diagnostic and / or therapeutic actions. Therefore, the user can set up a further base module, which defines a further subjective viewing direction. To this end, the user can remove the base module 22 from the handling module 28, insert the further base module into the accommodation space of the handling module 28 and detachably fix it.

[0141] The sterile disposable product 134 comprises an outer packaging 136 and a further handling module 29. In the exemplary case, the handling module 29 is different from the handling module 28. In the operable state of the base module 22, the two handling modules 28, 29 realize different functions. The further handling module 29 is packaged in the sterile state in the outer packaging 136.

[0142] It is appreciated that the operating module 28 can also be packed in a sterile outer package of similar construction prior to use with the endoscope 20. Advantageously, the operating module 28 is part of such a disposable product. Only at the point of use, e.g. at the point of preparation of the operation, the package is unpacked by the user or other medical personnel, thus being in a sterile condition. No additional sterilization step is required and no draping operation is necessary. Subsequently, the user can place the base module 22 into the operating module 28, so that the base module 22 is operable.

[0143] Likewise, the user can take another operating module 29 out of the outer package 136 and / or make it ready for use. For example, the holding portion of the operating module 28' is a pistol grip, which can be advantageous for the handling. Furthermore, the user can detach the base module 22 from the operating module 28 and take the base module 22 out of the operating module 28. Thereafter, the user can place the base module 22 into the other operating module 29, in particular into the receiving space thereof. The operating module 28 can be disposed of by the user, e.g. thrown away. Furthermore, the base module 22 can be sterilized and / or autoclaved in particular together with the supply cable 88 prior to the placement of the base module 22 into the operating module 28' by the user. Furthermore, the user can detachably fix the base module 22, in particular the housing of the base module 22, to the other operating module 28 and then use the thus assembled endoscope.

[0144] In the present example, the shaft 70 is fixedly connected to the housing 24. The shaft 70 can be configured in one piece with the housing 24. Alternatively or additionally, the shaft 70 can be welded or glued to the housing 24, for example. The connection between the shaft 70 and the housing 24 can be vapor-tight.

[0145] In some embodiments, the shaft 70 can be implemented as a replaceable shaft. The shaft 70 configured as a replaceable shaft can be detachably connected to the housing 24 without tools. In this way, different replaceable shafts can be used, which have different cameras, different light sources, different lengths, different diameters, different materials, etc., and / or define different main viewing directions, for example. In general, different replaceable shafts can be provided for different applications.

[0146] Figure 2A schematic view of the distal end 72 of the shaft 70 is shown in a side view. Here some details can be recognized more clearly. The camera 78 comprises an optical element 82 and an image sensor 148. The optical element 82 defines a main viewing direction 84 of 45°, which is inclined with respect to the longitudinal axis or axis 86 of the shaft 70. Furthermore, the shaft 70 comprises a light source 80. In addition, the shaft 70 comprises a heat pipe 152. The heat pipe 152 extends at least to the vicinity of the camera 78. In addition, the shaft 70 comprises two electronic elements 150, 151. In this case, these electronic elements can be, for example, circuit boards, control processors, circuits, sensors or other components.

[0147] Figure 3 A schematic view of the base module 22 is shown. As already mentioned, the system 10 comprises a supply cable 88, which can be connected to the base module 22. The base module 22 and the supply cable 88 together form a plug connector 90. The supply cable 88 is a coaxial cable 92, which can be rotated with respect to the base module 22 when in the connected state with the base module 22. The not shown part of the supply cable 88 can be connected to the supply unit 12. For the connection of the supply cable 88 to the supply unit 12, too, a plug connector can be provided. This plug connector can likewise establish a rotatable connection. Alternatively, as Figure 1 As is shown schematically in Fig. 2, the connection between the supply cable 88 and the supply unit 12 can have a different configuration than the connection between the base module 22 and the supply cable 88, for example a plug with a plurality of contacts arranged side by side and / or a plug with a preferred direction of insertion.

[0148] The base module comprises a plurality of manipulation elements 62, all of which are designated by the same reference sign for the sake of simplicity. The manipulation elements 62 can have different configurations and / or control different functions of the base module 22. For example, they can be used to manipulate the camera 78 and / or to manipulate the light source 80 and / or to adjust the light intensity and / or the light color.

[0149] Figure 4 A schematic view of the operating module 28 and the base module 22 is shown, with the base module 22 not yet being placed in the receiving space 32 of the operating module 28. The operating module 28 has a plurality of control elements 64, which are arranged on the outside of the base body 30. For the sake of simplicity, all control elements 64 are designated by the same reference sign, but can have different configurations. For example, at least one of the control elements 64 can be configured as a pushbutton. Furthermore, at least one of the control elements 64 can be configured as a rotary knob. In addition, at least one of the control elements 64 can be configured as a slide control. The control elements 64 can be part of a control assembly 65. The control assembly 65 can comprise a separate housing, which is connected to the base body 30. The control assembly 65 can be manufactured separately from the base body. In the present case, the base body 30 is, for example, an injection-molded part, into which the control assembly 65 is mounted.

[0150] In other embodiments, the actuating elements 64 can be configured integral with the base body 30. These actuating elements can be connected to the adjacent material, for example, via ribs and / or thin-film hinges and / or other similar structures, and produced in a single injection-molding step.

[0151] The actuating elements 64 are arranged such that they act on the actuating elements 62 in at least one of the insertion positions of the base module 22. In particular, an unambiguous, in particular one-to-one, assignment can be provided, such that exactly one specific function of the base module 22 can be controlled by means of each actuating element 64, in particular by the actuating element 64 acting on the actuating element 62 associated with this function.

[0152] As shown in Figure 3 , the actuating elements 62 are arranged at different circumferential positions of the housing 24 of the base module 22. In the case shown, two groups of actuating elements 62 of identical and / or similar construction are arranged at opposite positions of the housing 24. This makes it possible for the base module 22 to be inserted into the accommodation space 32 in two different orientations, wherein for each of these two orientations one group of actuating elements 62 cooperates with the actuating elements 64. In this case, for example, if an angular main viewing direction 84 is provided, in this way two different viewing directions can be realized with the same base module 22 for a predetermined holding position of the operating module 28, in this case, for example, +45° and -45° viewing directions, depending on the orientation.

[0153] Exemplarily, the accommodation space 32 extends along 90% of the length of the operating module 28. Figure 5 A simplified schematic view of the operating module 28 is shown, viewed from the proximal end side 98 of the operating module 28. The following additionally refers to Figure 5 . The base body 30 forms an opening 100 at its proximal end side 98, through which the base module 22 in particular can be inserted into the accommodation space 32. Furthermore, the operating module 28, in particular the base body 30, forms a distal end opening 154 at its distal end side 156. The distal end opening 154 is configured such that the shaft 70 can extend out through the distal end opening 154.

[0154] The accommodation space 32 has a circular cross section. The housing 24 of the base module 22 has a circular cross section. In the inserted state, the housing 24 is arranged concentrically with the accommodation space 32. The accommodation space 32 has a cylindrical portion. The housing 24 has a cylindrical portion. In the inserted state, the cylindrical portion of the housing 24 is arranged within the cylindrical portion of the accommodation space 32.

[0155] In principle, the base module can also be placed into the receiving space of the handling module during a factory assembly process. In this context, the user can be a different user than the end user. For example, the user can be an assembly worker in a factory. It is further conceivable that the user operates a machine which is adapted to place the base module into the receiving space of the handling module.

[0156] Figure 6 A schematic view of an endoscope 220 is shown. The endoscope 220 is generally configured similar to the endoscope 20 described above. The differences between the two are mainly set out below. The endoscope 220 comprises a base module 222 and a handling module 228. The base module 220 can be placed into a receiving space 232 of the handling module 228, Figure 6 is shown in its placed-in state. The base module 222 can be placed into the receiving space 232 from a proximal side of the handling module 228 through an opening.

[0157] The handling module 228 has a grip portion 244. In the present example, the handling module 228 has a base body 230 which constitutes the grip portion 244. The grip portion 244 is at least partially arranged distally with respect to the housing 224 of the base module 222. The grip portion 244 has a first diameter 252. The housing 224 has a second diameter 254. The first diameter 252 is smaller than the second diameter 254.

[0158] Figure 6 The endoscope 220 is shown held in a user's hand. It can be seen that the portion of the grip portion 244 which is arranged distally with respect to the housing 224 or the grip portion 244 is configured as a pen. By "pen" it is meant that the grip portion 244 can be held by the user like a pen for writing. In this way, the endoscope 220 can be guided very precisely. Thereby, fine movements can be performed controllably. The endoscope 220 is for example suitable for applications in the field of neurosurgery.

[0159] Figure 7 A schematic view of an endoscope 320 is shown. The endoscope 320 is generally configured similar to the endoscopes 20, 220 described above. The differences between the two are mainly set out below. The endoscope 320 comprises a base module 322 and a handling module 328. The base module 320 can be placed into a receiving space 332 of the handling module 328, Figure 7 is shown in its placed-in state.

[0160] The handling module 328 comprises a grip portion 344. The grip portion 344 is at least partially arranged proximally with respect to the housing 324. In the present example, the grip portion 344 encloses the housing 324 on the proximal side. According to other not shown embodiments, Figure 5The base body shown can be configured with an opening at its proximal end side, through which the base module 22 can be inserted into the accommodation space in particular. The longitudinal axis 346 of the grip portion 344 is inclined with respect to the longitudinal axis 348 of the accommodation space 342. For example, the longitudinal axis 348 of the accommodation space 342 forms an angle of 100° with the longitudinal axis 346 of the grip portion 344. The grip portion 344 is a pistol grip. Furthermore, the operating module 328 comprises two actuating elements 364, one of which is shown in more detail in Figure 8 The actuating elements 364 are arranged on the grip portion 344. When holding the grip portion 344, the actuating elements 364 can be actuated, for example, by the index finger and / or middle finger and / or ring finger, in particular according to the type of trigger.

[0161] Figure 8 A further schematic view of the endoscope 320 is shown in Figure 7 A further schematic view of the endoscope 320 is shown in The actuating elements 364 are arranged on the grip portion 344. When holding the grip portion 344, the actuating elements 364 can be actuated, for example, by the index finger and / or middle finger and / or ring finger, in particular according to the type of trigger.

[0162] The actuating mechanism 358 can be coupled to a trigger element 370. The trigger element 370 can likewise be part of the actuating elements 364. In the present case, the trigger element 370 comprises a magnet 366. The magnet 366 can be, for example, a permanent magnet. By actuating, in particular pressing, the actuating elements 364, the trigger element 370 can be moved away from the actuating element 362. Thereby, the actuating elements 364 can act on the actuating element 362 such that actuation of the actuating element 362, in particular by a user, can be initiated.

[0163] In the present case, the actuating element 362 comprises a Hall sensor 368. The Hall sensor 368 is adapted to detect a movement, position and / or position change of the trigger element 370. To this end, the Hall sensor 368 in the present case senses a magnetic field of the magnet 366.

[0164] Figure 9A schematic view of the operating module 328 is shown in a view parallel to the longitudinal axis of the accommodation space 332. The base body 330 of the operating module 328 has two base body parts 340, 342 which are connected to each other in a hinged manner. The base body parts 340, 342 can be moved relative to each other in order to achieve opening and closing of the accommodation space 332. In the open state of the accommodation space 332, the base module 322 can be placed into the accommodation space 332. In the closed state of the accommodation space 332, the housing 324 of the base module 322 is fixed on the operating module 328.

[0165] The base body 330 has a hinge 350. The hinge 350 can for example be configured as a hinge strip which extends parallel to the longitudinal axis of the accommodation space 332. In some embodiments, the hinge 350 can be a film hinge. In this case, the hinge 350 can be producible in one manufacturing step with the two base body parts 340, 342, in particular by means of an injection molding and / or additive manufacturing process. The base body parts 340, 342 are preferably made of plastic.

[0166] The operating module 328 has a securing mechanism 334. In the present case, the securing mechanism 334 comprises a snap-in element 336 which can be inserted into a snap-in seat 338 in order to form a snap-in state. The snap-in element 336 and the snap-in seat 338 are arranged on each of the two base body parts 340, 342. The securing mechanism 334 is a clamping lock. After placing the base module 322 into the accommodation space 332, the user can close the two base body parts 340, 342 and close the securing mechanism 334. In this way, the base module 322 is fixed in the operating module 328.

[0167] In some embodiments, the inner side of the base body 330 can be provided with at least one elastic heat-conducting element 352 which can for example be composed of a heat-conducting elastomer. In the present case, such an elastic heat-conducting element 352 is arranged on each of the base body parts 340, 342. In the placed state of the base module 322, the at least one heat-conducting element 352 is in contact with the housing of the base module 322. In this way, waste heat can be conducted away via the at least one heat-conducting element 352. In addition, the at least one heat-conducting element 352 can clamp the base module 322 and thus hold it securely in the accommodation space 332.

[0168] Figure 10 A state of the operating module 328 is shown in which the accommodation space 332 is closed. The two base body parts 340, 342 have been closed and are snap-locked to each other by means of the securing mechanism 334.

[0169] Figure 11 A schematic view of the securing mechanism 34 is shown. This can for example be a Figure 1The fixation mechanism used in the endoscope 20 will be described below. However, this type of fixation mechanism can also be used in the other embodiments described herein.

[0170] The base module 22, in particular its housing 24, is placed into the receiving space 32 of the operating module 28 such that a gap 160 exists between the housing 24 and the base body 22. This gap 160 is configured as a hollow cylinder. Due to this gap 160, the housing 24 of the base module 22 does not have its entire outer surface in abutment with the inner wall of the base body 30. Figure 12 A schematic view of the fixation mechanism 24 is shown from the proximal end side. The following will also refer to Figure 12 .

[0171] The fixation mechanism 34 comprises a pre-tensioned and / or pre-tensionable pre-tension element 36. In the present embodiment, the pre-tension element 36 is mounted on a cable mount 166. The cable mount 166 can be part of the power cable 88. The pre-tension element 36 can be removed from the base module 22 together with the power cable 88. In other embodiments, the pre-tension element 36 can be permanently mounted on the base module 22. This applies both to variants in which the power cable 88 is permanently fixed to the base module 22 and to variants in which the structure between the base module 22 and the power cable 88 is configured to be detachable. For example, in these cases, the cable mount 166 can be replaced by a base element of the base module 22 and / or a protrusion of the housing 24 which carries the pre-tension element 36.

[0172] The pre-tension element 36 is configured as an elastic element. The pre-tension element 36 can have a plurality of elastic arms and / or arm segments. The pre-tension element 36 can be radially deformable. In particular, the outer diameter of the pre-tension element 36 can be able to be reduced by the application of force. The pre-tension element 36 can be configured according to the type of a Belleville spring, in particular a multi-groove Belleville spring. Alternatively, the spring element 36 can have a single arm. For example, two such arms are shown in Figure 9 There are preferably at least two, at least three, at least four, at least five or at least six arms.

[0173] The fixation mechanism 34, in particular the operating module 28, comprises a retaining element 38 which is adapted to detachably fix the housing 24 on the operating module 28 by back clamping. In particular, the pre-tension element 36 is adapted to detachably fix the housing 24 on the operating module 28 by back clamping the retaining element 38.

[0174] Figure 11Two different positions of the pre-tensioning element 36 are shown. The position shown on the right (solid line) is the position in the fixed state. The pre-tensioning element 36 is in the fixed position. The position immediately to the left thereof (dashed line) corresponds to the state of the pre-tensioning element 36 when it is introduced into the accommodation space 32 and / or removed therefrom. The pre-tensioning element 36 is in the released position.

[0175] For the introduction of the base module 22, the user radially compresses the pre-tensioning element 36 in order to move it into the released position. When the base module 22 is introduced into the accommodation space 32, the pre-tensioning element 36 can pass through the retaining element 38. Subsequently, the pre-tensioning element 36 springs back into its fixed position, in which it clamps the retaining element 38 from the back. At this point, the pre-tensioning element 36 exerts a force on the distal contact surface of the retaining element 38, thereby pressing the base module 22 into the accommodation space 32 and / or holding it in the accommodation space 32. If a proximally directed force is exerted on the base module 22 in the introduced and fixed state, the pre-tensioning element 36 counteracts this force and holds the base module 22 in the operating module 28.

[0176] Furthermore, the operating module 28 and the base module 22 together constitute a directional aid 56, which defines a preferred position and / or a preferred orientation of the housing 24 relative to the operating module 28. In particular, the directional aid 56 comprises two ramp portions 162, 163, which extend circumferentially along the operating module 28 and the base module 22, in particular the housing 24, and are adapted to interact by mechanical contact such that the base module 22 assumes an axially preferred position in the operable state. Furthermore, the directional aid 56 is also adapted to center the base module 22 such that the longitudinal axis of the base module 22 coincides with the longitudinal axis of the grip portion 44. In the present case, the ramp portions 162, 163 are configured as conical. They comprise conical surfaces, which abut one another, and together realize the centering of the base module 22.

[0177] In addition, the operating module 28 has a sealing element 104, which forms a seal against the base module 22 in the operable state. The sealing element 104 is arranged proximally relative to the directional aid 56. The sealing element 104 is, for example, an O-ring. The sealing element 104 is preferably made of a deformable material, in particular an elastically deformable material, such as rubber and / or an elastomer. In the present case, the pre-tensioning element 36 presses the base module 22 or its housing 24 against the sealing element 104 in the introduced state.

[0178] In the present case, the base body 30 also has a support element 169. The support element 169 supports the housing 24 inside the accommodation space 32. In the case shown, the support element 169 bears against the outer circumferential surface of the housing 24 at the proximal end of the housing 24 of the base module 22. The support element 169 defines an inner diameter which at least substantially corresponds to the outer diameter of the housing 24. The support element 169 can be configured annularly. Alternatively, a plurality of support elements can be provided at different circumferential positions.

[0179] In embodiments in which the shaft 70 is configured as a replaceable shaft, an interface 71 can be provided between the shaft 70 and the housing 24. Such an interface 71 is drawn in dashed lines in Figure 9 as an optional component. Such an interface 71 can be arranged such that it is located within the accommodation space 32 when the base module 22 is in the installed state. For example, the interface 71 is located proximally relative to the distal opening 154 of the base body 30. Thereby, the interface 71 is protected by the operating module 28.

[0180] Figure 13 A further embodiment of an operating module 428 and a base module 422 is shown. It is configured analogously to Figures 7 to 9 However, the difference is that a sealing element 404 is arranged distally of the accommodation space 432. The sealing element 404 can seal against the shaft 470. In the present case, the sealing element 404 is an O-ring and / or is preferably made of a deformable material, in particular an elastically deformable material, such as rubber and / or an elastomer.

[0181] If the shaft 470 is embodied as a replaceable shaft and can be connected to the housing 424 of the base module 422 via an interface 471, the interface can be arranged proximally relative to the sealing element 404. Thereby, the interface 471 can be protected by the operating module 428. In particular, the interface 471 is at least distally sealedly covered.

[0182] Figure 14 A schematic view from the proximal side showing a further embodiment of a securing mechanism 624. This embodiment is similar to the embodiment shown in Figure 12 Thus, the differences between the two will mainly be explained in the following. The securing mechanism comprises a rotatable securing element 640 which is arranged rotatably on the proximal end face of the base module 622. In particular, the rotatable securing element 640 is supported in a manner that it can rotate about a longitudinal axis 696 of the base module 622. The longitudinal axis 696 coincides with the longitudinal axis of the operating module 628 when the base module 622 is in the installed state. Similar to Figure 12 the embodiment in, the securing element 640 in the present embodiment is mounted on a cable mount 166. The cable mount 166 can be part of the power cable 88. Other features and alternative embodiments can be similar to Figure 12The same applies to the central power cable 88. Specifically, a fixing element 640 may be provided instead of the pre-tightening element 36. In this case, the base module 622 may be identical to the base module 22. The fixing element 640 may be specifically provided on the cable base 166, and the fixing element 640 may be removed together with the cable base 166. For example, if the base modules 22, 622 include the pre-tightening element 36 instead of the fixing element 640 to make them operable together with the operating module 28, then the cable base 166 can be connected to the base modules 22, 622.

[0183] Furthermore, the fixing mechanism includes two retaining elements 638, which are formed by the operating module 628. The retaining elements 638 are arranged on opposite sides of the operating module 628. The retaining elements 638 are adapted to detachably fix the housing 624 of the base module 622 to the operating module 628 via a back-end clamping mechanism. Specifically, the fixing element 640 is movable between a fixed state and a released state by rotation. Figure 14 In the diagram, the retaining element 640 in the released state is shown in solid lines. In this state, the base module 622 can be placed into and / or removed from the receiving space 632. The base module 622 can be placed into the receiving space 632 such that, in the fixed state, the back face of each lateral portion of the retaining element 640 clamps one of the retaining elements 638. The fixed state is shown in dashed lines. In particular, the fixed state and / or the released state can be established without tools.

[0184] The user can place the base module 622 into the receiving space and rotate the retaining element 640 such that the retaining element 640 clamps at least one of the retaining elements 638 from the back, thereby achieving a fixed state. Furthermore, the user can rotate the retaining element 640 to achieve a released state and remove the base module 622 from the operating module 628. Additionally, the user can detach the supply cable 88 along with the cable base 166 and the retaining element 640 from the base module 622. Subsequently, the user can... Figure 12 The preload element 36, its supply cable 88, and cable base 166 are connected to the base module 622. This allows the user to make the base module 622 compatible with the operation module 28.

[0185] Another aspect of the fixing mechanism 624 can be partially referred to. Figure 15 As shown. The fixing element 640 includes a preloadable preload element 636. In particular, the fixing element 640 may be the preload element 636. The preload element 636 is capable of elastic deformation in the axial direction. Figure 15A side view of the holding element 638 is shown. The holding element 638 can partially define a guide rail 643 that is angled with respect to a perpendicular plane to the longitudinal axis 696. This guide rail 643 is adapted to deform the pre-tensioning element 636 in axial direction when the securing element 640 is rotated. Furthermore, the holding element 638 comprises a snap-in portion 645 that is configured as a snap-in recess, in particular a groove. In the secured state, the snap-in portion 640 or the snap-in recess at least partially encloses the pre-tensioning element 636. In this state, the pre-tensioning element 636 is in an axial preferred position. To move out of the preferred position, an axial force has to be applied to the pre-tensioning element 636, preferably by the user. The pre-tensioning element 636 is deformed in axial direction by the guidance on the guide rail during rotation. Thereby, a tension and / or potential energy of the pre-tensioning element 636 can be generated. When the securing element 640 and / or the pre-tensioning element 636 is rotated over the angled guide rail 643, the pre-tensioning element 636 moves into, or snaps into, a preferred position, in which the tension or potential energy is smaller than when on the angled guide rail 643. To release the securing mechanism 634, the pre-tensioning element 636 can be deformed in axial direction, in particular by the user, so that the securing element 640 can be rotated over the snap-in portion 645. In particular, the user can deform the pre-tensioning element 636 in axial direction, or press the pre-tensioning element 636 from the proximal side, and move the securing element 640 into a released state, to release the securing mechanism 634.

[0186] It is understood that the shown embodiments of the securing mechanism can be combined with any of the base modules and / or the operation modules. In particular, the features involved in the securing mechanism are to be understood independently of the other features of the base modules and / or the operation modules.

[0187] Figure 16A lateral sectional view of another embodiment of the base module 722 and the handling module 728 is shown. The base module 722 and the handling module 728 together form a directional aid 756. The directional aid 756 comprises four guide fins 758, which are formed radially inside the handling module 728. The guide fins 758 extend into the receiving space 732 of the handling module 728. Furthermore, the directional aid 756 comprises four guide grooves 761. The guide grooves 756 are each formed to correspond to one of the guide fins 758. In particular, the guide grooves are formed as recesses of the housing 724 of the base module. By means of the directional aid 756, a radially preferred position of the base module 722 can be defined, in particular in that the guide fins 758 are in contact with all guide grooves 761. In particular, the base module 722 can be centered, or in other words, in the inserted state, the base module 722 is arranged centrally in the receiving space 732. Furthermore, the guide fins 758 extend into the receiving space 732 in such a way that a gap 760 between the housing 724 and the handling module 728 remains when the base module 722 is in the inserted state. Furthermore, the guide grooves 761 at least partially accommodate the guide fins 758. In particular, the guide fins 758 can be in contact with the side walls, in particular all side walls, of the guide grooves 761. Thereby, a preferred rotational position can be defined. Furthermore, the guide fins 758 and the guide grooves 761 can improve the guidance of the base module 722 when inserting the base module 722 into the receiving space 732.

[0188] Figure 17 A schematic view of another embodiment of the handling module 828 is shown, wherein a base module 622 is shown in the inserted or ready state in the receiving space 832 of the handling module 828. The handling module 828 has at least great similarities to the handling module 28. Therefore, in the following mainly the differences between the two will be set out. The present embodiment of the handling module 828 will be described by means of Figure 18 and Figure 19 the handling module 828. Figure 18 A schematic view of the handling module 828 is shown, as seen from the distal side of the handling module 828. Figure 19 A schematic view of the handling module 828 is shown, as seen from the proximal side of the handling module 828.

[0189] The operation module 828 comprises four air inlets 806 at the distal portion 808 of the operation module 828. The air inlets 806 are configured as openings to the accommodation space 832 of the operation module 828. These openings are through-holes through the distal end face 817 of the operation module 828. The air inlets 806 can jointly extend over a large portion of the circumference of the distal end face 817 of the operation module 828. In the illustrated case, the air inlets 806 extend over 90% of the circumference of the distal end face 817 of the operation module 828. Alternatively, air inlets 806 of a different configuration can also be provided. For example, any number of air inlets can be provided, in particular two, three, five, six or seven. The air inlets can jointly extend, for example, over 30% to 99%, in particular 50% to 95%, preferably 70% to 90% of the circumference of the distal end face 817 of the operation module. In particular, the extension of the air inlets can be selected depending on the power of the base module. If a stronger cooling effect is required due to a greater power of the base module when in operation, air inlets with a greater extension can be provided. In other embodiments not shown, the air inlets can be arranged at least partially on the radially outer surface of the operation module. Furthermore, the air inlets can be arranged at least partially on the radially outer surface of the operation module and / or at least partially on the distal end face 817 of the operation module. Returning to the illustrated embodiment, the remaining portion of the distal end face 817 comprises four ribs 867, which in particular extend radially between the air inlets 806.

[0190] Furthermore, the operation module 828 comprises four air outlets 810 at the proximal portion 812 of the operation module 828. The air outlets 810 are interrupted by four support elements 869. The support elements 869 jointly form a ring tapering in the axial direction as viewed from the proximal side. In particular, the support elements 869 jointly form a cone. The portion of the cone with the smallest diameter defines an inner diameter, which at least substantially corresponds to the outer diameter of the housing 624. In the inserted state, the support elements 869 are adapted to axially guide the base module 622 and to define a radially preferred position thereof. In particular, the support elements 869 are adapted to center the base module 622. In the operable state, a gap 860 exists between the base module 622 and the operation module 828. In other embodiments of the operation module, the proximal side of the base module 722 can be closed. In this case, the air outlets can be configured as through-holes at least partially through the proximal wall portion and / or at least partially through the radially outer surface of the operation module in accordance with the air inlets.

[0191] The air inlet 806 is in connection with the air outlet 810, in particular via the gap 860. The connection between the air inlet 806 and the air outlet 810 can also be defined as an air channel 814. The air channel is configured as a hollow cylinder. In particular in the middle section of the housing, there is no contact with the operating module 828. The radially inner surface 816 of the air channel is defined by the housing 624.

[0192] Furthermore, the operating module 828 has a sealing element 804, which forms a seal against the base module 622 in the steerable and / or operable state. The sealing element 104 is, for example, an O-ring. The sealing element 104 is preferably made of a deformable material, in particular an elastically deformable material, such as rubber and / or an elastomer.

[0193] Furthermore, the operating module comprises a steering assembly 865, which is implemented in accordance with the steering assembly 65. The base module 622 likewise comprises a steering element in accordance with the base module 22. It should be noted that the steering assembly 865 is in particular optional and / or can be provided with any number of steering elements.

[0194] The operating module 828 is a one-piece injection-molded part made of plastic with particularly good thermal insulation properties. In particular, the user of the operating module 828 is not affected by the heat generated during operation of the base module 622, in particular the housing 624, when guiding the operating module 828 by hand. In order to be able to keep the base module 622 within a suitable temperature range and / or to dissipate heat from the base module 622 to the environment, the air inlet 806 and the air outlet 810 are provided. Ambient air can enter the gap 860 via the air inlet 806, absorb heat and be discharged via the air outlet 810. Thus, air can circulate around the housing 624 and cool it by convection. In particular, a suitable distance is provided between the housing 624 and the operating module 828 in order to be able to realize the air circulation, in particular the circulation as indicated by the arrows in the figure. Figure 17

[0195] The base module 622 comprises, in the illustration, a securing element 840 arranged in the vicinity of the housing 624 on the shaft 670 of the base module 622, in particular immovably, and a power supply cable 88, which is detachably connected to the base module 88. The power supply cable 88 does not comprise a securing element. Reference is made to Figure 12 and Figure 14 It should be noted that the power supply cable 88 is compatible or connectable with the base modules shown in the two figures. For example, if an air cooling as shown in Figure 17 is provided, or an operating module 828 for operating the base module is provided, the power supply cable 88 without a securing element can be connected to the base module, in particular by the user. ​

[0196] The operating module 828 and the base module 622 together form a securing mechanism 834 as described below. In the operable state, a securing element 840 is arranged axially inside the operating module 828. Furthermore, the securing element 840 is arranged distally of the sealing element 804. The securing element 840 comprises two radial protrusions 871 which extend from opposite sides on the circumferential side of the shaft 670. According to Figure 18 The operating module 828 comprises a retaining element 838 and two recesses 866 which are configured to correspond to the protrusions 871. The retaining element 838 is adapted to detachably secure the housing 624 on the operating module 828 by back clamping. The recesses 866 are configured such that the protrusions 871 can pass through the recesses 866, in particular during the insertion of the base module 622 into the receiving space 832. Once the protrusions 871 are arranged distally of the axial outer surface or end face of the retaining element 838 or have completely passed through the recesses 866, the base module 622 can be rotated together with the shaft 670 and the protrusions 871 in order to bring the base module 622 into a secured position.

[0197] In order to pass the protrusions 871 completely through the recesses 866, the sealing element 804 is axially compressed. In particular in the inserted state and / or during insertion, the housing 624 presses on the sealing element 804. Thereby, the sealing element 804 exerts an axial force on the housing 624 in the opposite direction to the insertion direction of the base module 622. In particular, even after the rotation of the base module 622, the sealing element 804 presses on the housing 624. Thus, the securing element 840 is pressed from the distal side against the retaining element 838. In particular, the operating module can be clamped by the sealing element 804 and the protrusions 871 and / or is in the clamped state in the operable state. In order to release the operating module, the housing can be axially pressed against the sealing element 804, so that the base module 622 can be rotated such that the protrusions 871 can pass through the recesses 866.

[0198] To place the base module 622 into the receiving space 832 and / or to secure the base module 622 on the operating module 828, in particular to establish the operable state, the user thus withdraws the shaft 670 from the receiving space 832 on the distal side of the operating module 828. Furthermore, the user passes the protrusion 871 through the recess 866. In the process, the user presses the housing 624 against the sealing element 804. Once the protrusion 871 is arranged at the distal end of the retaining element 838, the user rotates the base module 622 to establish the operable state, so that no force is applied to the base module 622 and / or the housing 624 any more. The sealing element 804 presses the housing 624 in the axial direction in the operable state, so that the operating module 828 is clamped between the protrusion 871 and the housing 624. To release, the user presses the housing 624 against the sealing element 804 and rotates the base module 622, so that the protrusion 871 can pass through the recess 866 and so that the protrusion 871 passes through the recess 866.

[0199] Figure 20 A schematic view of another embodiment of an operating module 928 is shown, in which a base module 622 is shown in a placed-in state or a ready state within a receiving space 932 of the operating module 928. The operating module 928 has at least great similarities to the operating module 828. Therefore, the following mainly sets forth the differences between the two. In particular, with regard to the securing mechanism 934, reference is made to the securing mechanism 834, which is of the same construction. The present embodiment of the operating module 928 will be described below with the aid of Figure 21 and Figure 22 the operating module 928. Figure 21 A schematic view of the operating module 928 is shown, as viewed from the distal side of the operating module 928. Figure 22 A schematic view of the operating module 928 is shown, as viewed from the proximal side of the operating module 928.

[0200] The main difference between the operating module 928 and the operating module 828 is that the distal end face 917 of the operating module 928 is not provided with an opening. It is to be noted in particular that, as with the operating module 828, the operating module 928 is also capable of being used with a plurality of base modules, i.e. is compatible. The combination of the operating module 928 with the base module 622 is merely shown by way of example. Furthermore, the operating module 928 has similar advantages in terms of thermal insulation as the operating module 828. In particular, the operating module 928 is made largely of plastic and / or can be constructed at least substantially monolithically. In particular, the base body 930 is constructed monolithically.

[0201] For cooling the base module 622, a coolant communication interface 921 is provided. In particular, the operating module 928 comprises the coolant communication interface 921 via which cooling fluid, in particular cooling air, can be introduced into the accommodation space 932. A hose 971 can be detachably fixed to the coolant communication interface 921. For example, the hose 971 can be detachably fixed to the coolant communication interface 921 by means of a rotary operated joint, in particular comprising a locking nut, a claw joint or a plug-in joint. Further, the hose 971 can be coupled, for example, to the power supply unit 12 and / or to an air supply unit which is adapted to provide cooling air. In particular, the cooling air can be provided with a controllable and / or adjustable pressure and / or flow rate.

[0202] The cooling air can be introduced and / or forced into the channel 969 via the hose 971. The channel 969 extends inside the vane 929 which extends from the proximal end of the operating module 928 to the distal portion 908 of the operating module 928. In particular, the vane 929 extends over 85% of the length of the housing 624. In other embodiments, the vane can extend, for example, over 90%, 95%, 80% or any other distance with respect to the housing 624. The vane 929 is constituted by the operating module 928 and protrudes into the accommodation space 932 from the radially inner surface of the operating module 928. In particular, in the operable state, at least one radially inner point of the vane 929 is in contact with the base module 622. The vane can have similar properties, in particular guiding properties and / or centering properties, as the support elements 869, 169 and / or the guide fins 758. The channel 969 opens into the accommodation space 932 at the distal portion 908 and defines the air inlet 906.

[0203] Further, similar to the operating module 828, the operating module 928 also has a sealing element 904 which forms a seal against the base module 622 in the operable state. Further, the sealing element 904 has the same properties with respect to the fixation means 934 as the sealing element 904 has with respect to the fixation means 834. The accommodation space 934 is sealed against the environment at the distal portion 908. The air introduced via the coolant communication interface 921 is introduced into the accommodation space 932 via the air inlet 906. As in the case of the operating module 828, the air inlet 906 is defined by the channel 969 and the vane 929. Figure 20In the proximal portion 912, the operating module 928 comprises three air outlets 910. As previously described, the air outlets 910 are in connection with the air inlet 906. Air, which flows into the containment space 932, particularly into the air channel 914, through the air inlet 906, flows out of the containment space 932, particularly out of the air channel 914, through the air outlets 910. In accordance with the description related to the operating module 828, the air can absorb and / or discharge heat of the base module 622. The difference is that the amount of air, which is introduced into the containment space 932 through the air inlet 906, can be controlled and / or adjusted according to the requirements and / or specific applications. For example, if a greater cooling effect is required, a greater amount of air and / or air with a lower temperature can be introduced.

[0204] The air outlets 910 extend along the circumference of the operating module 928. This is particularly clear in Figure 22 . The air outlets 910 are interrupted on the circumferential side by the vane 929 comprising the channel 969 and by two further vanes 929. The further vanes 929 are designated by the same reference numerals for the sake of simplicity. The vanes 929 together form a ring tapering in the axial direction as seen from the proximal side. In particular, the vanes 929 together form a cone. The radially innermost portion of the cone defines an inner diameter, which at least substantially corresponds to the outer diameter of the outer shell 624. The vane 929 comprising the channel 969 does not taper like the two further vanes 929. In the steerable state, the vanes 929 are adapted to axially guide the base module 622 and to define a radially preferred position thereof. In particular, the vanes 929 are adapted to center the base module 622. The vanes 929 can function similar to the support elements 169, 869 in terms of centering and / or spatial orientation of the base module. The further vanes 929 extend at the same distance as the vane 929 comprising the channel 969 to the same axial position. In the distal portion 908, the vanes 929 do not particularly extend to the distal end face 917 or to the wall portion defining the distal end face 917. Air can flow around the vanes 929 in the distal portion 908.

[0205] Another embodiment of the operating module 1028 is shown in Figure 23 and Figure 24 . Figure 23Fig. 10 shows a schematic view of a proximal end portion 1012 of the handling module 1028, wherein a base module 622 is shown in a stowed or ready state within a receiving space 1032 of the handling module 1028. The handling module 1028 is at least largely similar to the handling module 928. Therefore, the following mainly sets out the differences between the two. Figure 24 Fig. 11 shows a schematic view of the handling module 1028 as seen from a proximal end side of the handling module 1028.

[0206] In contrast to the handling module 928, the handling module 1028 is adapted such that liquid cooling of the base module 622 is possible. The handling module 1028 comprises a support element 1069 in its proximal end portion 1012, which is embodied as an annular element. The support element 1069 is configured integral with the handling module and / or extends from a radially inner surface of the handling module 1028 into the receiving space 1032. The handling module 1028, in particular the support element 1004, further has a sealing element 1004, which is embodied as an O-ring. The sealing element 1004 is partially accommodated in a sealing element annular groove of a radially inner surface of the support element 1069 and / or forms a seal against the base module 622, in particular the housing 624, in the operable state. The support element 1069 is further conically constricted. By means of the support element 1069, the base module 622 can be guided, aligned, centered and / or supported, as with other support elements and / or similar elements.

[0207] The distal end portion of the handling module 1028 is embodied similarly to the distal end portion 908 of the handling module 928. In particular, the distal end portion of the receiving space 1032 is sealed against the environment. In the operable state, the receiving space 1032 is entirely sealed against the environment.

[0208] Furthermore, the handling module 1028 comprises a coolant communication interface 1021 via which a cooling fluid can be introduced into the receiving space 1032. The handling module 1028, in particular the coolant communication interface 1021, comprises two hoses 1071 which pass through the support element 1069. In particular, the hoses 1071 are permanently connected with the handling module 1028. The handling module 1028 is furthermore a single-use product, which is discarded and / or recycled after use together with the hoses 1071. Via one of the hoses, a cooling fluid, for example water or any other suitable liquid coolant, can be able to be introduced into the receiving space 1032 according to a predetermined cooling profile. The other hose 1071 can be used for the removal of the cooling fluid from the receiving space 1032. Figure 23 and Figure 24The cooling fluid is introduced into the accommodation space 1032 in the direction of the arrow. A hose 1071, by means of which the cooling fluid is introduced, extends to a distal portion, not shown. In the distal portion, the cooling fluid is introduced into the accommodation space 1032. The hose 1071 can be coupled in particular to the power supply unit 12, to a pump and / or to a coolant supply unit. These devices can be adapted to introduce the cooling fluid, like the cooling air according to the operating module 928, in a controllable and / or adjustable volume flow and / or pressure and / or in a controllable and / or adjustable temperature into the accommodation space 1032.

[0209] The operating module 1028 further comprises at least two vanes 1029, in the present case four vanes 1029, but only one is shown in the figure. These vanes are constructed analogously to the vanes 929 and in particular contact the housing 624 along their longitudinal direction. Figure 23 The vanes 1029 shown in the figure extend to the distal end face of the distal portion of the operating module 1028, not shown, or to the wall portion thereof on the side of the accommodation space. The cooling fluid introduced in the distal portion is conducted to the proximal portion by means of a fluid channel. The radially inner surface of this fluid channel is defined by the housing 624, the radially outer surface is defined by the radially inner surface of the operating module. The lateral surface of the fluid channel is defined in particular by the vanes 1029.

[0210] The vanes 1029 shown in the figure do not extend to the support element 1069 in the proximal portion 1012. In particular, the proximal end portion 1073 of the vanes 1029 is kept at a distance from the support element 1069. In particular, the vanes 1029, in particular the proximal end portion 1073 of the vanes 1029, are kept at a distance from the support element 1069, so that the cooling fluid can flow along the circumferential side through the vanes 1029. Differently, circumferentially adjacent vanes 1029 extend from the support element 1069 up to a distal end portion, wherein this distal end portion is kept at a distance from the distal end face, so that the cooling fluid can flow along the circumferential side through the distal portion of the vanes 1029. The other vanes 1029 can extend in the same pattern, so that they are kept at a distance from the distal end face and from the support element alternately. In summary, the cooling fluid can be conducted in a labyrinth-like manner along the housing. The cooling fluid is guided by means of the hose 1071 to the coolant communication interface 1021, by means of which the accommodation space 1032 is evacuated.

[0211] Advantageously, a better cooling performance than with air cooling can be achieved with a liquid cooling fluid. Furthermore, the diameter of the operating module 1028 can be set smaller.

[0212] Figure 25 Another aspect of the endoscope 320 is shown in the form of a schematic view, comprising an operating module 328 and a base module 322. Figure 26A cross-sectional view of the proximal end side of the operating module 328 shows a schematic view of the operating module 328. An exemplary embodiment of the base module cooling is described in the following in connection with these two figures. It is noted that this form of base module cooling can be combined with other, in particular the operating module embodiments described herein. The endoscope 320 comprises a cooling module 122 for cooling the base module 322. The cooling module 122 can be arranged inside the handle 344. In particular, the cooling module 122 comprises a latent heat store 126. The latent heat store 126 is arranged within a housing of the cooling module 122. The housing has good heat conducting properties. The base body 330 of the operating module 328 defines a cooling module accommodation space 124 into which the cooling module 122 can be placed. Furthermore, the longitudinal axis of the handle 344 of the endoscope 320 is inclined with respect to the longitudinal axis of the accommodation space 334. In particular, the handle 344 is a pistol grip.

[0213] In particular, the user can place the cooling module into the cooling module accommodation 124 and / or establish an operable state. In the operable state, the cooling module 122 is in thermal contact with the base module 322 at least when the cooling module 122 is in the placed-in state. This can mean that the cooling module 122 is in thermal contact with the base module 322 indirectly, for example via a heat conducting element, in particular a copper element, or directly. In the shown form, the cooling module 122 can be placed into the holding portion 344, in particular the cooling module accommodation 124, from the side. Furthermore, the cooling module accommodation 124 opens into the accommodation 332 of the operating module 328. In the operable state, by placing the cooling module 122 into the cooling module accommodation 124, it can be brought into physical and thermal contact with the base module 322. Further, the base module 322 and / or the cooling module 122 has a heat conducting deformable element 128, which in the operable state and in the placed-in state fits onto the cooling module 122 or the base module 322. The heat conducting deformable element has similar properties as the elastic heat conducting element 352 and / or can for example consist of a heat conducting elastomer. In the present case, the heat conducting deformable element 128 is arranged on the cooling module 122. Waste heat is conducted away via the heat conducting element 128 and / or from the base module 322 to the cooling module 122. Furthermore, the heat conducting element 128 can clamp the base module 322, so that it is held securely in the accommodation 332. In particular, in the operable state and when the cooling module 122 is in the placed-in state, the cooling module 122 exerts a force on the base module 322. To maintain the exertion of this force, a securing mechanism 321 is provided. The securing mechanism 321 comprises two buttons 323, two catches 325 and catch holes 327. The buttons 323 are arranged on the side of the base body 344. Furthermore, the buttons are mechanically connected to the catches via a lever mechanism. A part of the catches 325 protrudes into the cooling module accommodation 124. By operating the buttons 323, the catches 325 can be removed at least substantially from the cooling module accommodation 124. Furthermore, by placing the cooling module 122 into the cooling module accommodation 124, the catches 325 can be removed from the cooling module accommodation 124. When the cooling module 122 is in the placed-in state, the catches 325 snap into the catch holes 327. In particular, the catches 325 hold the cooling module 122 in the cooling module accommodation 124 by back clamping. Furthermore, the user can exert pressure on the heat conducting deformable element 128 during the placement of the cooling module 122. The catches 325 are adapted to hold the cooling module 122 in the cooling module accommodation 124, so that the base module 322, in particular the heat conducting elastic element 128, is stressed. The user can manipulate the buttons 323 to remove the cooling module 122. The force to which the base module 322 is subjected in this case causes the cooling module 122 to be moved in a direction opposite to the direction of placement of the cooling module 122.

[0214] Figure 27 ,Figure 28 and Figure 29 A detailed illustration of the control assembly 65 and its associated control elements 64 is shown. Figure 27 A side view of a partial structure of the base module 22, of a partial structure of the base body 30 of the operating module 28 and of the control assembly 65 is shown. The overall structure of the control assembly 65 has already been described in connection with Figure 4 In Figure 27 it can be seen that the control assembly 65 can be manufactured separately from the base body 30. The control assembly 65 comprises a housing 69 and three control elements 64. Two of the control elements 64 are configured as push buttons 67. The third control element 64 is configured as a rotary knob 70.

[0215] The control elements 64, in particular the push buttons 67, each comprise a magnet 66, in particular a rare earth magnet comprising neodymium, dysprosium and / or samarium, for example. The magnet 66 of the push button 67 comprises two magnetic poles arranged one after the other in a radial direction in the illustrated embodiment. Furthermore, the push button 67 is guided in such a way that it can be moved in the radial direction. By manipulating, in particular pressing, the push button 67, the respective magnet 64 can be moved towards the associated control element 62 of the base module 22.

[0216] Furthermore, the rotary knob 70 comprises a magnet 66, in particular a rare earth magnet comprising neodymium, dysprosium and / or samarium, for example. The magnet 66 comprises two magnetic poles arranged one after the other in an axial direction. By manipulating, in particular pressing, the push button 67, the respective magnet 64 can be moved towards the associated control element 62 of the base module 22. By manipulating, in particular rotating, the rotary knob 70, the magnet 64 can be moved, in particular rotated, relative to the associated control element 62 of the base module 22, or in other words, can be moved to other rotational positions.

[0217] In principle, it is also possible to provide components made of ferromagnetic, ferrimagnetic and / or paramagnetic and / or other electrically conductive materials instead of at least one magnet 66.

[0218] At least one actuating element 62 includes a Hall sensor 68. In this embodiment, all actuating elements 62 each include a Hall sensor 68. The function of actuating element 62 is illustrated using one actuating element as an example. By means of an actuating element 62 including a Hall sensor 68, it is possible to measure, in particular, the local magnetic flux density of the magnet 66 of button 67. By knowing the magnetic flux density, it is possible to infer the radial relative position of button 67 and / or the magnet 66 associated with button 67 relative to the actuating element 62. Button 67 may, together with the actuating element 62, constitute a switch capable of switching between two positions. The switch may, in particular, be a proximity switch, such as a magnetic proximity switch, a capacitive proximity switch, an optical proximity switch, and / or an inductive proximity switch. Furthermore, the switch may be capable of switching between more than two positions, such as three, four, or five positions. These positions are defined by the radial relative position of button 67, in particular the corresponding magnet 66, relative to the actuating element 62, in particular the corresponding Hall sensor 68. Button 67 may include a reset element adapted to reset button 67 to its initial position after actuation. The reset element can be an elastic element, especially a spring element.

[0219] Furthermore, the rotational position of the knob 70 and / or the associated magnet 66 relative to the actuating element 62 can be deduced. The actuating element 62 may specifically include multiple, particularly two, three, or four Hall elements 62, to measure the rotational position. The actuating element 62 can be adapted to measure the rotational position with a resolution of, for example, 0.1° to 20°, particularly 0.5° to 10°, preferably 1.0° to 5°. The actuation of the associated actuating element 62 is performed based on the rotational position.

[0220] Figure 28 A schematic view of the control assembly 65 from the proximal side is shown. Specifically, a knob 70 including a magnet 66 and an actuation element 62 associated with the knob 70, the actuation element including at least one Hall sensor 68, can be seen. Furthermore, the combination... Figure 3 Another aspect already mentioned in the description. In Figure 28 In addition to the control element 62 associated with button 70, there is another control element 62, which is constructed to be structurally and / or functionally identical to the other control elements 62. This additional control element 62 is arranged opposite to the other control elements 62. By rotating the base module 22, which is particularly advantageous for the viewing direction of the endoscope 20, this additional control element 62 can be arranged relative to the control element 64, especially the knob 70, so that the additional control element can work in conjunction with the control element.

[0221] Figure 29A schematic top view of the display control assembly 65 is shown. Three control elements 64 can be seen, two of which are configured as push buttons 67 and one as a rotary knob 70. Furthermore, the housing 69 of the control assembly 65 can be seen, in which the control elements 64 are at least partially embedded. In embodiments not shown, the control assembly comprises one, two, four, five, six and / or seven control elements 64.

[0222] Figure 30 and Figure 31 Another aspect of the power cable 88 is shown, the respective shown embodiment differing only slightly. In connection with Figure 30 It can be seen that the power cable 88 comprises a plug 91 of a plug connector 90 already mentioned in connection with the description of Figure 3 The plug 91 extends along a longitudinal axis 96 of the base module (not shown). In the connected state with the base module, the power cable 88 is rotatable. Furthermore, it can be seen that the cable exit direction 94 of the power cable 88 from the base module is inclined with respect to the longitudinal axis 96 of the base module. In the shown case, the cable exit direction 94 is inclined by 90° with respect to the longitudinal axis 96. The inclination of the cable exit direction 94 is defined in particular by a transition portion 92 of the power cable 88, which adjoins the plug 91. In the present case, the transition portion 92 is composed of a hard plastic. Alternatively or additionally, the transition portion 92 can also be composed of rubber, some kind of plastic and / or metal. In particular, in a certain region of the transition portion 92, the power cable 88 is reinforced.

[0223] Figure 31 A part of essentially the same power cable 88 is shown. The difference is that the cable exit direction 94 is inclined by 45° with respect to the longitudinal axis 96.

[0224] Figure 32 A schematic view of a medical robot 132 is shown. The robot 132 comprises a robot arm 133, a robot control unit 129 and a holder 130. The holder 130 is arranged at a proximal end of the robot arm 133. The operating module 28 is adapted to be mounted on the holder 130 of the medical robot 132 and to enable the base module 22 to be operated by the robot 132. The holder 130 is configured in one piece with the operating module 28. In other embodiments, the holder is configured separately from the operating module. By means of the robot arm 133, the base module 22 can be moved in all spatial directions and / or can be swung about at least one, in particular adjustable, spatial point.

[0225] Figure 33 A schematic flow chart of a method of providing an endoscope 20 is shown. For a detailed description, reference is made to at least the description in connection with Figures 1 to 4The method comprises at least the step 1100 of providing the base module 22, the step 1102 of providing the operating module 28 and the step 1104 of placing the base module 22 into the operating module 28 by the user. It is understood that the described method can be transferred at least to all base modules and operating modules according to the present application and / or the embodiments shown.

[0226] In other words, the following aspects are described herein, inter alia.

[0227] The base module can comprise an endoscope shaft and a proximal end piece with a CCU (computer control unit) interface. The base module can further comprise sensors for detecting push button magnets. The image generating functions (camera and illumination) can be located within a hermetically sealed housing, ensuring that high pressure steam sterilization can be performed. One feature can be that the magnetic sensors are mounted in two opposite regions of the housing. This is advantageous for a tilted angle endoscope, as the user can determine whether the viewing direction is up or down with respect to the push button by inserting the endoscope into the handle with a respective deviation of 180°.

[0228] The cable interface is preferably constructed as a coaxial cable. This enables the non-0° cable exit to be rotated into the direction required for the respective application. Furthermore, the user can replace the cable if it fails, as the rotation angle on the shaft does not have to be taken into account during plugging. By means of a serializer in the base module and an additional filter for power transmission, a simple coaxial cable suffices for the connection to the CCU (computer control unit). The procurement costs for such a simple cable are extremely low, and even a single use can be considered. If the cable is made of a material that can be sterilized with high pressure steam, the plug-in state can be maintained at all times. The advantage of this solution is that the user does not have to make any further electrical connections in addition to the connection to be established with the CCU.

[0229] In hand-held applications, the grip piece takes over the tasks of endoscope guidance, thermal isolation and electrical function control (push buttons, scroll wheel).

[0230] In a partial variant, the base module with plug-in cable can be inserted into the handle from the proximal end to the distal end and locked.

[0231] When the base module is centrally located within the operating module, its power loss can be directly transferred to the flowing air. By completely eliminating electronic components in the operating module, it can be implemented as a disposable plastic component (the cost of any magnets involved is negligible). The low thermal conductivity of plastic isolates the user from the high temperature of the base module surface. This has a positive impact on heat dissipation, as the greater the temperature difference between the incoming cooling air and the base module surface, the better the convection. If LEDs are installed near the operating point, they can operate at higher power due to their superior heat dissipation, thus providing a lighting reserve in emergencies such as massive hemorrhage, or providing more adequate overall illumination of the surgical site.

[0232] Cooling fluid is introduced into the space between the base module and the gripping component via an inlet hose, and the heated cooling fluid flows out from the proximal end. Since the cooling fluid does not come into contact with the patient, room air can be used directly. The overall diameter of the gripping component can be reduced, which improves operational convenience.

[0233] If liquid cooling is used, a return channel and sealing structure can be provided in the near-end region. At the same volumetric flow rate, water or other coolants can remove far more heat than air due to their higher specific heat capacity. Therefore, this variation is suitable for high-performance LEDs mounted near the base module, which can render stationary light sources redundant in most applications.

[0234] When using media cooling, the operating module is preferably designed as a disposable product because the required inlet and outlet hoses can be integrated into the gripping component without causing problems during handling.

[0235] To achieve positioning within the operating module, a centering ramp can be provided at the front, which, together with the spring force of the rear guide structure and locking device, ensures a precise and secure position. Different implementations can be specifically constructed to be the same or similar, except for sealing. A snap-fit ​​spring can be provided at the rear, automatically locking upon insertion. To unlock and remove the base module, the spring must be manually pressed to move it to the unlocked position. A similar situation applies to a locking method where spring tension is generated by screwing into a slightly inclined track. The endpoint may be slightly deeper relative to the ramp, so the spring engages and can only be unlocked again by pressing and rotating. The options shown represent the basic solution, primarily aimed at facilitating operation during assembly in the surgical preparation phase.

[0236] In the pistol grip variant, button operation is achieved via a simple mechanical structure that moves a magnet to the correct position on the base module, thereby triggering the desired function. For the pistol grip, the cable exit is preferably located at the end of the grip and facing downwards. For this purpose, a cable variant can be equipped on the base module at an angle to the insert shaft.

[0237] As mentioned before, another grip variant is the pen grip. In this case the structure of the endoscope is constituted according to the type of so-called pen endoscopes. Here, the holding part of the set is prolonged forward. However, the diameter of the prolonged part is only slightly larger than the shaft diameter, so that the instrument can be held like a pencil between the thumb and the index finger and rotated. The larger diameter falls in the area between the thumb and the index finger of the palm. This variant is particularly preferred in neurosurgery.

[0238] In some variants, the dissipated power generated by the base module can be transferred to a cooling module filled with a phase change material. By means of the phase change, a large amount of energy can be stored in the cooling module in a small volume. This makes it possible, for example, to dispense with water cooling, which here requires additional hoses, a water reservoir and a pump. Since the cooling module can be easily replaced, the system can be operated without time restrictions. To achieve a better heat transfer, the contact surface of the cooling module to the base module can be equipped with a material that is elastic and has good thermal conductivity, thus ensuring a large or maximized heat exchange area.

[0239] In particular in the pistol grip variant, it can be provided that the pistol grip clamps the base module after the closure catch has been closed. In this case, the pistol grip can absorb the dissipated power via an elastic, thermally conductive material and distribute it to a larger surface. Since an elastic material is used, in some embodiments the base module can no longer be pushed in, but is more appropriately clamped. This principle is not limited to the pistol grip. Depending on the dissipated power required, it is sometimes sufficient to increase the diameter of the circular holding part in order to keep the temperature within the comfortable range for the user.

[0240] Based on the non-contact magnetic sensor technology, various user input elements can be used. In addition to the key function, an analog input can also be realized via a rotation angle sensor. This input is advantageous for controlling the image focus or the stepless electronic zoom. In particular, the rotation angle sensor is very sensitive to the correct distance in the Z-axis direction. In the sensor area, the circular base housing can have a flattened part, so that the magnet can be placed as close to the sensor as possible. The material of the base module housing can also be diamagnetic, for example steel.

[0241] If the key positions are to be selectable with respect to the oblique viewing direction and the Hall sensors are installed in a symmetrical manner, the possibility of input on both the upper and lower sides can be used to arrange functions that are less frequently used or should not be misoperated during operation, for example focusing by means of a jog wheel, on the respective side that is less easily accessible.

[0242] In principle, the insertion direction of the base module can also be reversed, i.e. insertion from the distal end to the proximal end. This insertion is more advantageous when the operating module, which serves as a receptacle, is equipped with electronic devices that cannot be subjected to high-pressure steam sterilization and must be covered with a drape each time it is used.

[0243] List of reference signs

[0244] 10 system

[0245] 12 power supply unit

[0246] 14 display unit

[0247] 16 anatomical structure

[0248] 20 endoscope

[0249] 22 base module

[0250] 24 housing

[0251] 26 control electronics

[0252] 28 operating module

[0253] 29 operating module

[0254] 30 base body

[0255] 32 accommodation space

[0256] 34 securing means

[0257] 36 pretensioning element

[0258] 38 retaining element

[0259] 42 base body part

[0260] 44 grip portion

[0261] 62 actuating element

[0262] 64 actuating element

[0263] 65 actuating assembly

[0264] 66 magnet

[0265] 67 pushbutton

[0266] 68 Hall sensor

[0267] 69 housing

[0268] 70 rotary knob

[0269] 70 shaft

[0270] 71 interface

[0271] 72 distal portion

[0272] 74 proximal portion

[0273] 78 camera

[0274] 80 light source

[0275] 82 optical element

[0276] 84 main viewing direction

[0277] 88 power supply cable

[0278] 90 plug connector

[0279] 91 plug

[0280] 92 transition portion

[0281] 94 cable exit direction

[0282] 96 longitudinal axis

[0283] 98 proximal end side

[0284] 100 opening

[0285] 104 sealing element

[0286] 122 cooling module

[0287] 124 cooling module accommodation space

[0288] 126 latent heat store

[0289] 128 thermally conductive deformable element

[0290] 129 robot control unit

[0291] 130 holder

[0292] 132 medical robot

[0293] 133 robot arm

[0294] 134 sterile disposable product

[0295] 136 sterile overpack

[0296] 148 image sensor

[0297] 150 electronic element

[0298] 152 heat pipe

[0299] 154 distal end opening

[0300] 156 distal end side

[0301] 158 actuating mechanism

[0302] 160 gap

[0303] 162 inclined portion

[0304] 163 inclined portion

[0305] 164 additional directional aid

[0306] 166 cable base

[0307] 169 support element

[0308] 220 endoscope

[0309] 222 base module

[0310] 224 housing

[0311] 228 operating module

[0312] 230 base body

[0313] 232 accommodation space

[0314] 244 grip

[0315] 252 diameter

[0316] 254 diameter

[0317] 320 endoscope

[0318] 321 fixation mechanism

[0319] 322 base module

[0320] 323 button

[0321] 325 snap

[0322] 327 snap hole

[0323] 328 operating module

[0324] 332 accommodation space

[0325] 334 fixation mechanism

[0326] 336 snap element

[0327] 338 snap seat

[0328] 340 base body part

[0329] 342 base body part

[0330] 344 grip

[0331] 346 longitudinal axis

[0332] 348 longitudinal axis

[0333] 350 hinge

[0334] 352 heat-conducting element

[0335] 362 actuating element

[0336] 364 control elements

[0337] 366 Magnet

[0338] 368 Hall Sensor

[0339] 404 sealing element

[0340] 422 Basic Module

[0341] 428 Operation Module

[0342] 432 storage space

[0343] 470 axis

[0344] 471 interface

[0345] 522 Basic Module

[0346] 528 Operation Module

[0347] 534 Fixed Mechanism

[0348] 540 Fixing Components

[0349] 570 axis

[0350] 622 Basic Module

[0351] 624 casing

[0352] 628 Operation Module

[0353] 632 storage space

[0354] 634 Fixed Mechanism

[0355] 636 preload element

[0356] 638 holding element

[0357] 640 Fixing Components

[0358] 643 guide rail

[0359] 645 buckle part

[0360] 670 axis

[0361] 688 Cable Supply

[0362] 696 longitudinal axis

[0363] 722 Basic Module

[0364] 724 casing

[0365] 728 Operation Module

[0366] 732 storage space

[0367] 758 guide fins

[0368] 761 guide grooves

[0369] 760 gap

[0370] 804 sealing element

[0371] 806 air inlet

[0372] 808 distal portion

[0373] 810 air outlet

[0374] 812 proximal portion

[0375] 814 air channel

[0376] 816 radially inner surface

[0377] 817 distal end face

[0378] 828 operating module

[0379] 832 accommodation space

[0380] 834 fixation mechanism

[0381] 838 holding element

[0382] 840 fixation element

[0383] 860 gap

[0384] 865 actuation assembly

[0385] 866 recess

[0386] 867 rib

[0387] 869 support element

[0388] 871 protrusion

[0389] 904 sealing element

[0390] 906 air inlet

[0391] 908 distal portion

[0392] 910 air outlet

[0393] 912 proximal portion

[0394] 914 air channel

[0395] 916 radially inner surface

[0396] 917 distal end face

[0397] 921 coolant communication interface

[0398] 928 operating module

[0399] 929 blade

[0400] 930 base body

[0401] 932 accommodation space

[0402] 934 fixation mechanism

[0403] 958 guide fins

[0404] 960 gap

[0405] 969 passage

[0406] 971 hose

[0407] 1004 sealing element

[0408] 1012 proximal portion

[0409] 1021 coolant communication interface

[0410] 1028 operating module

[0411] 1029 blade

[0412] 1032 accommodation space

[0413] 1060 gap

[0414] 1069 support element

[0415] 1071 hose

[0416] 1073 proximal end

[0417] 1100 step

[0418] 1102 step

[0419] 1104 step

Claims

1. An endoscope (20, 220, 320), comprising: The basic module (22, 622) includes: The outer casing (24, 624); and Control electronics (26, 626), wherein the housing (24, 624) encapsulates the control electronics (26, 626); and An operating module (28, 628, 828, 928, 1028) is adapted to make the base module (22, 622) operable, and the operating module includes a base (30, 630, 830, 930, 1030) that defines a receiving space (32, 632, 832, 932, 1032) for the base module (22, 622); In order to establish an operational state, the basic modules (22, 622) can be placed by the user into the receiving spaces (32, 632, 832, 932, 1032) of the operating modules (28, 628, 828, 928, 1028); and The operation modules (28, 628, 828, 928, 1028) and the base modules (22, 622) together constitute a fixing mechanism (34, 634, 834, 934, 1034). With the help of the fixing mechanism, the outer shell (24, 624) can be detachably fixed to the operation modules (28, 628, 828, 928, 1028).

2. The endoscope (20) according to claim 1. wherein The operation modules (28, 628, 828, 928, 1028) are adapted to enable the basic module (22, 622) to be operated and controlled by the user; and A controllable state can be established by placing the basic modules (22, 622) into the accommodating spaces (32, 632, 832, 932, 1032).

3. The endoscope (20) according to claim 1 or 2. wherein The base modules (22, 622) can be disassembled and / or attached to the operating modules (28, 628, 828, 928, 1028) without tools.

4. The endoscope (20) according to any one of the preceding claims, wherein The fixing mechanism (34, 634) includes pre-tightened and / or pre-tightened elements (36, 636).

5. The endoscope (20) according to any one of the preceding claims, wherein, The fixing mechanism (34, 634, 834, 934, 1034) includes retaining elements (38, 638, 838, 938, 1038) adapted to detachably fix the housing (24, 624) to the operating module (28, 628, 828, 928, 1028) via a back buckle.

6. The endoscope (20) according to any one of the preceding claims. wherein, The securing mechanism (634) has at least one rotatable securing element (640), wherein the rotatable securing element (640) is movable between a securing state and a release state by rotation.

7. The endoscope (320) according to any one of the preceding claims, wherein The accommodation space (332) is openable and closable.

8. The endoscope (320) according to claim 7, wherein In the open state of the accommodation space (332), the base module (322) is insertable into the accommodation space (332), and wherein, in the closed state of the accommodation space (332), the housing (324) is secured to the operating module (328).

9. The endoscope (320) according to claim 7 or 8, wherein The base body (330) comprises at least two base body parts (340, 342) which are connected to each other in a hinged manner and are movable relative to each other to achieve opening and closing of the accommodation space (332).

10. The endoscope (20) according to any one of the preceding claims, wherein The base body (30) comprises a grip portion (44).

11. The endoscope (20) of claim 10, wherein, In the operable state, the grip portion (44) at least partially surrounds the housing (24).

12. The endoscope (20) according to claim 10 or 11, wherein In the operable state, the grip portion (44) is at least partially arranged distally relative to the housing (24).

13. The endoscope (20) according to claim 10 or 11, wherein In the operable state, the grip portion (44) is at least partially arranged proximally relative to the housing (24).

14. The endoscope (20) according to any one of claims 10 to 13, wherein A longitudinal axis (46) of the grip portion corresponds to a longitudinal axis of the accommodation space (32).

15. The endoscope (320) according to any one of claims 10 to 14, wherein, A longitudinal axis of the grip portion (344) is inclined relative to a longitudinal axis of the accommodation space (334).

16. The endoscope (320) according to claim 15, wherein, The grip portion (344) is a pistol grip.

17. The endoscope (220) according to any one of claims 10 to 16, wherein A diameter (252) of the grip portion (244) is smaller than a diameter of the housing (24).

18. The endoscope (20) according to any one of claims 10 to 17, wherein, The grip portion (44) has an ergonomic outer shape.

19. The endoscope (20) according to any one of the preceding claims, wherein The operating module (28, 728) and the base module (22, 722) together constitute an orientation aid (56, 756) which defines a preferred position and / or a preferred orientation of the housing (24, 724) relative to the operating module (28, 728).

20. The endoscope (20) according to claim 19, wherein The orientation aid (56, 756) has at least one guide tab (758) and a guide groove (761) configured to correspond to the guide tab (758).

21. The endoscope (20) according to any one of the preceding claims, wherein The base module (22) comprises at least one actuating element (62) by means of which at least one function of the base module (22) can be controlled; and The operating module (28) comprises at least one operating element (64) which, in the operable state, acts on the actuating element (62) in such a way that an actuation of the operating element (64) triggers an actuation of the actuating element (62), in particular by a user.

22. The endoscope (20) according to claim 21, wherein The operating element is rotatable, and The actuation of the actuating element (62) is effected in dependence on the rotational position of the operating element (64).

23. The endoscope (20) according to claim 22, wherein The actuating element (62) and / or the operating element (64) comprises at least one magnet (66).

24. The endoscope (20) according to claim 23, wherein The actuating element (62) comprises a Hall sensor (68).

25. The endoscope (20) according to claim 23 or 24, wherein, The base module (22) comprises at least two functionally identical actuating elements (62) which are arranged at different circumferential positions, in particular opposite one another with respect to a longitudinal axis of the accommodation space (32), and which are each adapted to cooperate with the operating element (64).

26. The endoscope (20) according to any one of the preceding claims, wherein, The base module (22) further comprises a shaft (70) having a distal portion (72) and a proximal portion (74), wherein the proximal portion (74) is mounted on the housing (24).

27. The endoscope (20) according to claim 26, wherein The shaft (70) is configured as a replaceable shaft.

28. The endoscope (20) according to claim 26 or 27, wherein, The distal portion (72) comprises a camera (78) and / or a light source (80).

29. The endoscope (20) according to any one of claims 26 to 28, wherein The distal portion (72) comprises at least one optical element (82) which defines a main viewing direction (84), wherein the main viewing direction (84) is inclined with respect to a longitudinal axis (86) of the shaft.

30. The endoscope (20) according to any one of the preceding claims, Further comprising a power cable (88) which is connected and / or connectable with the base module (22).

31. The endoscope (20) according to claim 30, wherein The power cable (88) is permanently connected with the base module (22).

32. The endoscope (20) according to claim 30 or 31, wherein The base module (22) and the power cable (88) together form a plug connector (90).

33. The endoscope (20) according to any one of claims 30 to 32, wherein, The power cable (88) is a coaxial cable (92).

34. The endoscope (20) according to any one of claims 30 to 33, wherein, In the connected state, the power cable (88) is rotatable relative to the base module (22).

35. The endoscope (20) according to any one of claims 30 to 34, wherein, A cable exit direction (94) of the power cable (88) from the base module (22) is inclined with respect to a longitudinal axis (96) of the base module.

36. The endoscope (20) according to any one of the preceding claims, wherein The base body (30) constitutes an opening (100) at its proximal end side (98), through which the base module (22) can be introduced into the accommodation space (32).

37. The endoscope (20) according to any one of the preceding claims, wherein, The control electronics (26) are hermetically encapsulated.

38. The endoscope (20) according to any one of the preceding claims, wherein, The operating module (28) is adapted to be autoclaved and / or sterilized independently of the base module (22).

39. The endoscope (20) according to any one of the preceding claims, wherein, The operating module (28) is at least partially, in particular at least predominantly, made of plastic.

40. The endoscope (20) according to any one of the preceding claims, wherein, The base body (30) is made by means of injection molding and / or additive manufacturing.

41. The endoscope (20) according to any one of the preceding claims, wherein, The operating module (28) is a single-use product.

42. The endoscope (20) according to any one of the preceding claims, wherein In the operable state, the longitudinal axis (96) of the base module coincides with the longitudinal axis of the accommodation space (32).

43. The endoscope (20) according to any one of the preceding claims, wherein The operating module (28, 828, 928) has at least one sealing element (104, 804, 904, 1004) which forms a seal against the base module (22, 622) in the operable state.

44. The endoscope (20) according to any one of the preceding claims, wherein, The operating module (828, 928) further comprises at least one air inlet (806, 906) at a distal portion (808, 908) of the operating module (828, 928) and at least one air outlet (810, 910) at a proximal portion (812, 912) of the operating module (828, 928), wherein the at least one air inlet (806, 906) is in connection with the at least one air outlet (810, 910).

45. The endoscope (20) according to claim 44, wherein The at least one air inlet (806, 906) is connected with the at least one air outlet (810, 910) via an air channel (814, 914), wherein in the operable state, a radially inner surface (816, 916) of the air channel (814, 914) is defined by the housing (24, 624).

46. The endoscope (20) according to claim 45, wherein The air channel (814, 914) is hollow-cylindrical.

47. The endoscope (20) according to any one of the preceding claims, wherein, The operating module (28, 928, 1028) comprises a coolant communication interface (921, 1021) via which a cooling fluid can be introduced into the accommodation space (932, 1032).

48. The endoscope (20) according to any one of the preceding claims, wherein in an operable state, the accommodation space (32, 1032) is sealed against the environment.

49. The endoscope (320) according to any one of the preceding claims, further comprising a cooling module (122), wherein the base body (330) defines a cooling module accommodation space (124) into which the cooling module (122) can be placed, and wherein, in an operable state, the cooling module (122) and the base module (322) are at least in thermal contact when the cooling module (122) is in the placed state.

50. The endoscope (320) according to claim 49, wherein the cooling module (122) comprises a latent heat reservoir (126).

51. The endoscope (320) according to claim 49 or 50, wherein, the cooling module accommodation space (124) opens into the accommodation space (332), and wherein, in an operable state, the cooling module (122) by which it is placed into the cooling module accommodation space (124) can form physical and thermal contact with the base module (322).

52. The endoscope (320) according to any one of claims 49 to 51, wherein, the base module (322) and / or the cooling module (122) have a thermally conductive deformable element (128) which, in an operable state and in the placed state, fits against the cooling module (122) or the base module (322).

53. The endoscope (320) according to any one of claims 49 to 52, wherein, in an operable state and when the cooling module (122) is in the placed state, the cooling module (122) exerts a force on the base module (322).

54. The endoscope (20) according to any one of the preceding claims, wherein, the operating module (28) is adapted to be mounted on a stand (130) of a medical robot (132) and to enable the base module (22) to be operated by the robot (132).

55. A base module (22) for an endoscope (20) according to any one of the preceding claims.

56. An operating module (28) for an endoscope (20) according to any one of the preceding claims.

57. A sterile disposable product (134) comprising: an operating module (28) according to claim 56; and a sterile outer packaging (136), wherein the operating module (28) is packaged in the outer packaging (136) in a sterile state.

58. A system (10) comprising: a base module (22) according to claim 55; and at least two different operating modules (28), each being an operating module according to claim 56, wherein, in an operable state of the base module (22), the two operating modules (28) implement different functions. ​ ​ 59. A method of providing a user with an endoscope (20) according to any one of claims 1 to 54, comprising: providing a base module (22); providing an operating module (28); and placing the base module (22) by the user into the operating module (28).

60. A method of providing a user with an endoscope (20) according to any one of claims 1 to 54, comprising: providing a base module (22); providing an operating module (28); and placing the operating module (28) by the user into the base module (22).

61. A method of providing a user with an endoscope (20) according to any

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