Medical imaging instrument, connector, system and method for operating medical imaging instrument

Abstract

The invention relates to a medical imaging instrument (10), in particular an endoscope, comprising a handle (12) comprising at least one basic electronic device (14), an alternating shaft (16) releasably connected to the handle (12) and comprising at least one camera (18) arranged to generate image data, and a connection unit (20) arranged to connect the at least one basic electronic device (14) to the alternating shaft (16), the connection unit is arranged to connect the camera (18) to the basic electronic device (14) and to transmit image data from the camera (18) to the basic electronic device (14).

Description

[0001] The present invention relates to a medical imaging instrument, in particular an endoscope, a connector for a medical imaging instrument, a system, in particular a medical system, and a method for operating a medical imaging instrument.

[0002] Endoscopes are often used to perform diagnostic and / or therapeutic procedures on inaccessible parts of a patient's body. Inaccessible parts of the body are particularly cavities, such as body cavities and / or hollow organs. Endoscopes are configured so that they can be partially inserted into a patient's cavity to perform diagnostic and / or therapeutic procedures. For example, to visualize anatomical structures or to better monitor diagnostic and / or therapeutic procedures, endoscopes are typically configured to illuminate light into the patient's cavity.

[0003] An endoscope includes an elongated shaft that is partially inserted into a patient's cavity. To examine anatomical structures, the distal end of the shaft is aligned so that it points substantially in the direction of the anatomical structure. This allows for precise illumination of the anatomical structure. As a result of imaging, light reflected from the anatomical structure is collected by the distal end of the shaft. After imaging is complete, the anatomical structure can be displayed to the user.

[0004] Some endoscopes have an image sensor at the distal end of the shaft. This eliminates the need for optical components such as glass fibers, light guides, or rod lenses to guide the captured light to the proximal end of the shaft. This avoids imaging errors that could occur due to light guidance along the shaft. Furthermore, a small shaft diameter is possible, as the shaft only needs to contain electrical wiring and no optical components. Such endoscopes often also have a light-emitting element, such as an LED, at the distal end of the shaft. The connection of the light source and camera at the distal end also allows for flexible shafts for corresponding endoscopes.

[0005] Furthermore, endoscopes can define different primary viewing directions. For example, a primary viewing direction of 30° can be defined by the shape of the distal end and the specific arrangement of the optical elements and image sensor. On the other hand, different endoscopes can define different primary viewing directions, such as 0°. This can refer to an angle relative to the longitudinal axis of the endoscope's shaft. During the performance of diagnostic and / or therapeutic procedures, it may be necessary to observe anatomical structures from different perspectives and / or to observe different anatomical structures. This may mean that during the performance of diagnostic and / or therapeutic procedures, the entire endoscope must be replaced in order to be able to observe the body cavity from a different perspective.

[0006] In principle, when using medical imaging instruments, especially endoscopes, it is important to ensure that they are sterile and can be sterilized as easily and reliably as possible.

[0007] Starting from the prior art, one object of the present invention is to increase the flexibility, efficiency and / or reliability of medical imaging equipment.

[0008] According to the present invention, this object is achieved by a medical imaging instrument, a connector, a system and a method for operating a medical imaging instrument as described herein and defined in the claims.

[0009] The present invention provides a medical imaging instrument, in particular an endoscope. The medical imaging instrument comprises a handle comprising at least one basic electronic device, an alternating shaft releasably connected to the handle and comprising at least one camera configured to generate image data, and a connecting unit configured to connect the camera to the basic electronic device and transmit the image data from the camera to the basic electronic device.

[0010] The medical imaging instrument according to the present invention offers a high degree of flexibility, particularly when performing diagnostic and / or therapeutic procedures. Furthermore, the imaging instrument according to the present invention is efficient and reliable. Users of the imaging instrument save significant time when performing diagnostic and / or therapeutic procedures, and operation is cost-effective. Even in time-sensitive situations, the imaging instrument allows for flexible and effective responses to events, particularly during diagnostic and / or therapeutic procedures. Furthermore, it may be advantageous to use a handle to perform several procedures. In such cases, only alternating axes is possible. This increases the cost-effectiveness of the imaging instrument's operation. Furthermore, resources are advantageously saved, as fewer handles are required to perform multiple procedures over a day, week, or longer. This is particularly useful when medical imaging instruments must be sterile and / or easily sterilizable to suit patient procedures. The features of the present invention allow for individual cleaning, disinfection, and / or autoclaving. Rapid switching of axes, for example to accommodate different camera types, enables widespread use of the imaging instrument and increases its user-friendliness. This is particularly beneficial for the quality of patient procedures, as users do not need to adapt to a new handle after switching axes. This increases the user's focus, since he does not need to concentrate his attention on the changing operability, and the use of the imaging instrument is more intuitive.

[0011] The imaging instrument can be an endoscope and / or an exoscope. The handle essentially provides an interface for mechanical operation of the imaging instrument. For example, the handle can be grasped by a user and the imaging instrument can be moved in space. Furthermore, the imaging instrument can be connected to a robot, particularly a medical robot, and / or grasped and / or held by the robot via the handle. The robot can be configured to perform actions, particularly diagnostic actions and / or interventions. Furthermore, the imaging instrument can be connected to a holding arm via the handle. The holding arm can be configured to hold the imaging instrument, particularly to assist the user in performing actions. Furthermore, the handle can have an ergonomic shape for user convenience. This can particularly mean that the handle has a preferred alignment relative to the user's grip. Furthermore, the handle can include at least one operating element, such as one or more buttons, keys, switches, and / or rotary controls. These can be arranged to simplify operability. The handle can have a preferred rotational position. This can mean that at least one operating element is positioned on the side of the handle. Rotating the handle, particularly by approximately 180° about the longitudinal axis of the imaging instrument relative to the preferred rotational position, can complicate operability, for example because the operating element is now positioned on a side that is difficult for the user to reach.

[0012] The basic electronics may be configured to power and / or control the camera. Furthermore, the basic electronics may be configured to communicate with a display unit, in particular to forward information such as image data to the display unit. Furthermore, the basic electronics may include an interface configured to communicate with a user. The interface may include at least one operating element. The basic unit may include a computing unit, such as a processor, a storage unit, a communication unit, and / or adjustable and / or controllable power electronics.

[0013] According to some embodiments, the alternating axis may comprise at least one lighting element, such as a light-emitting element, such as an LED and / or a laser diode. At least one of the lighting elements may be a white light lighting element, in particular a white light LED. The basic electronics may be configured to provide application-specific and / or operating state-specific electrical energy to the lighting element. Application-specific / operating state-specific may particularly mean that the light intensity and / or the emission spectrum of the lighting element can be adjusted relative to the application / operating state. In some cases, this can be achieved by mixing light from different lighting elements and / or selectively enabling and / or deactivating certain lighting elements for different applications / operating states. The light intensity may be adjusted automatically and / or by the user.

[0014] The alternating axis may comprise lines for conducting electrical energy and / or digital and / or analog signals and heat pipes for discharging waste heat from the camera and / or lighting element. Furthermore, the alternating axis may comprise a distal end. Preferably, the camera and / or lighting element is arranged at the distal end of the alternating axis. Furthermore, the alternating axis may comprise an axis that is elongated along a longitudinal axis. In particular, the axis may be a rigid axis. This may mean that the axis is arranged not to deform or only to deform slightly during use. The length of the axis may be, for example, 5 cm to 200 cm, in particular 20 cm to 100 cm. In other embodiments, the alternating axis may be flexible and / or comprise a flexible axis.

[0015] In particular, releasably connectable can mean that the alternating shaft can be quickly, easily, and / or reversibly connected to the handle. In particular, the alternating shaft can be repeatedly connected to the handle and released from the handle without damage. For example, the alternating shaft can be connected and / or released within 30 seconds, in particular within 20 seconds. Preferably, it can simply mean that the alternating shaft can only be connected and / or released by one user. In the released state, the alternating shaft can be gas-tight and / or autoclavable.

[0016] The camera may include an image sensor and optical components. The image sensor may be, for example, a CCD chip or a CMOS chip. According to some embodiments, the camera may include more than one image sensor. For example, the camera may be a stereo camera and / or include two image sensors. In some embodiments, the camera may be configured to generate digital image data. Alternatively or additionally, the camera may be configured to generate analog image data. In particular, the camera may include a computing unit configured to generate digital image data from analog image data.

[0017] The medical instrument, in particular the alternating axis and / or the camera, can define a primary viewing direction. The primary viewing direction can be the central axis of the optical path of the light captured by the camera. The primary viewing direction can be oriented parallel to and / or coincident with the optical axis of the camera's optics. In particular, the light can include light reflected and / or emitted from the object under examination. According to some embodiments, the primary viewing direction can include an angle with the longitudinal axis of the alternating axis. The angle can be a reference measurement for the angular indication of the primary viewing direction. This may mean that if the primary viewing direction is parallel to the longitudinal axis of the alternating axis, the primary viewing direction is 0°. The primary viewing direction can typically be between 0° and 90°. Preferred primary viewing directions are at least 0°, 10°, 20°, 30°, 40°, 45°, 60°, 75°, and 90°. The primary viewing direction can be oriented within an angular range of + / - 5° from one of these values. The image sensor can be arranged orthogonally to the primary viewing direction. According to other embodiments, the image sensor can be arranged such that the longitudinal axis of the alternating axis extends partially along the image sensor. The camera can typically be configured to generate image data at a repetitive frequency. The repetition frequency can be set as required. In particular, the repetition frequency can be at least 25 Hz, in particular 30 Hz and / or the camera can be configured to generate video image data.

[0018] The connection unit can be specifically configured to transmit generated image data to the basic electronics in at least substantially real time when the axis is connected. In particular, the connection unit can be configured to connect the camera to the basic electronics in a manner that ensures full operability and / or controllability of the camera. In particular, in the connected state, no functional differences in the camera can be detected compared to a conventional endoscope with a camera in the axis. In this context, connection can mean that signals, particularly image data, can be transmitted from the camera to the basic electronics during the connected state, and / or that signals, control commands, and / or current can be transmitted from the basic electronics to the camera during the connected state. It should be understood that image data can be transmitted in analog and / or digital form. Furthermore, the connection unit can be configured to connect other electrical consumers and / or components, such as lighting elements, other lighting elements, motors, batteries, and / or signal transmission units, to the basic electronics.

[0019] Furthermore, the connection unit can be configured to transfer electrical energy from the base electronics to the camera. Furthermore, the connection unit can be configured to transfer electrical energy to other electrical consumers and / or components. Advantageously, a separate connection to a power source and / or an energy storage device within the switching axis are not required. In other words, the switching axis can be supplied and / or controlled solely by the connection unit. When the switching axis is connected, full operability of the camera and / or other electrical consumers is ensured, in particular without requiring further action by the user.

[0020] In addition, the connection unit may include a connector that is constructed separately from the handle and / or the alternating shaft. The separately constructed connector can be released from the handle and the alternating shaft without damage and / or completely. The connector may be necessary to establish an electrical and / or electronic connection between the handle and the alternating shaft. The handle, the alternating shaft, and the connector may be three different, mutually separate, and / or separable components of the imaging instrument. The connector may be configured to be arranged between the alternating shaft and the handle. In particular, the connector may be configured to connect the camera head and / or other electrical consumers and / or components to the basic electronic device. Thus, the mechanical structure can be advantageously simplified. In particular, the configuration of the alternating shaft and / or the handle can be relatively cost-effective and simple.

[0021] Furthermore, the connector can be designed for single use. The connector can be individually sterile-packaged. For example, the connector can be manufactured from cost-effective materials and / or components that are available as mass-produced products. In particular, this can mean that the connector can be provided using inexpensive, conventional components. Advantageously, the connector does not need to be constructed to be overly durable and / or long-lasting and / or designed to reliably withstand frequent connections of alternating shafts without compromising its functionality.

[0022] In particular, the connector can be individually autoclaved and / or sterilized. Advantageously, the connector can be provided in sterile packaging. This allows, for example, quick and reliable switching of shafts, particularly without the user having to worry about the sterility of the connector. The connector is always available and can be quickly prepared for use.

[0023] Furthermore, the connection unit may comprise a first immovable electrical contact which is part of the handle and is connected to the base electronic device, and the connector may comprise a first movable electrical contact, wherein, in the connected state of the alternating axis, the first movable electrical contact applies a force to the first immovable electrical contact. This may particularly mean that there are no movable and / or spring-loaded components on the handle for connecting the camera to the base electronic device. The first immovable electrical contact may be rigid.

[0024] Furthermore, the connection unit may comprise a second non-movable electrical contact which is part of the alternating axis and is connected to the camera, and the connector may comprise a second movable electrical contact, wherein, in the connected state of the alternating axis, the second movable electrical contact applies a force to the second non-movable electrical contact. This may particularly mean that no movable and / or spring-loaded member is provided on the alternating axis for connecting the camera to the base electronic device. The second non-movable electrical contact may be rigid.

[0025] Thus, all movable and / or spring-loaded components for connecting the camera to the base electronic device can be located on the connector. This allows for a high level of wear resistance for the handle and / or the alternating shaft. Furthermore, it can be simpler to provide the alternating shaft and / or the handle in a gas-tight and / or fluid-tight manner. In this regard, key components of the connection unit can be included in the connector. By applying force, it can be ensured that contact is maintained during operation.

[0026] Furthermore, the first and / or second immovable electrical contacts can be flat. This further simplifies the design of the connection unit and / or, in particular, the alternating shaft and / or the handle. Furthermore, the alternating shaft and / or the handle can be easier to clean. In particular, the risk of liquid, dust, etc. accumulating in the immovable electrical contacts can be reduced. The first and / or second immovable electrical contacts can be rigid, flat contact pads.

[0027] Furthermore, the handle can have an at least substantially flat distal surface into which the first non-removable electrical contact is integrated, and the alternating shaft can have an at least substantially flat proximal surface into which the second non-removable electrical contact is integrated. This can advantageously increase cleanability, wear resistance, and / or reliability. The distal surface having the non-removable electrical contact can be substantially planar.

[0028] Furthermore, in the connected state of the alternating shaft, the distal surface of the handle and the proximal surface of the alternating shaft can be arranged at least substantially parallel to each other. The connector can generally include a base body that can include side surfaces that are substantially aligned parallel to each other. In the connected state, the side surfaces of the base body that are substantially aligned parallel to each other can be arranged parallel to the distal surface and the proximal surface. This structure can advantageously remain simple and cost-effective.

[0029] Furthermore, the first movable electrical contact and the second movable electrical contact can be electrically connected to each other at least when the alternating axis is in the connected state. Furthermore, the first movable electrical contact and the second movable electrical contact can be electrically disconnected from each other when the alternating axis is in the released state. For example, the movable electrical contacts can be movable so as to establish electrical contact with each other. Thus, the reliability of the connector can be increased.

[0030] In addition, the first movable electrical contact and the second movable electrical contact can be arranged offset from each other relative to the longitudinal axis of the alternating shaft. Alternatively or additionally, the immovable contacts can be arranged offset from each other. For example, various alternating shafts and / or handles can have specific arrangements of immovable electrical contacts. For example, the connector can be configured to make various alternating shafts and / or handles compatible with each other. For example, the connector can be configured to be specific to the alternating shaft, specific to the handle, and / or specific to a combination of the alternating shaft and the handle. Thus, the flexibility of the imaging device can be increased.

[0031] Furthermore, the first movable electrical contact can protrude from a first side of the connector, in particular a first side of the base body, and the second movable electrical contact can protrude from a second side of the connector, in particular a second side of the base body, opposite the first side of the connector. In particular, the first side and the second side can be aligned parallel to each other. Advantageously, this allows for a simple and cost-effective design of the connector, which can also be distinguished by high reliability.

[0032] Furthermore, the first movable electrical contact and / or the second movable electrical contact may comprise a spring contact pin. Extensive experience exists in the manufacture of spring contact pins. Furthermore, they are both cost-effective and reliable. Furthermore, minimal structural space is required. The longitudinal axis of the spring contact pin may be oriented perpendicularly to the first side of the connector and / or the second side of the connector and / or to the mutually parallel, aligned sides of the base body. The spring contact pin may comprise at least one pin sleeve mounted on the base body and at least one pin element resiliently supported relative to the pin sleeve and accommodated in the pin sleeve. The spring contact pin may comprise at least one spring that applies a spring force to the pin element. The pin element may be pushed into the pin sleeve against the spring force. In the connected state of the alternating shafts, the spring contact pin may apply a contact force to a corresponding one of the immovable electrical contacts, in particular, the spring element pressing the pin element against the immovable electrical contact.

[0033] Furthermore, the handle and the alternate shaft can each include a plurality of electrical contacts, and the connector can include a plurality of first movable electrical contacts and a plurality of second movable electrical contacts arranged in pairs to form contact pairs. In the connected state of the alternate shaft, each contact pair connects one of the handle contacts to one of the alternate shaft contacts. Advantageously, several poles of the camera and / or other electrical consumers can be connected to the base electronics. Furthermore, electrical reference points can be provided for the camera and / or other electrical consumers. The connector can include, for example, 1 to 50, particularly 2 to 40, preferably 6 to 30, and particularly preferably 12 to 24 contact pairs.

[0034] Furthermore, the connection unit may include a receiving pocket, and when the alternating shaft is in the connected state, the connector is received by the receiving pocket. This can increase the operability of the connector. Other advantages may relate to operational safety and reliability. In some embodiments, the handle may form the receiving pocket. Alternatively or additionally, the alternating shaft may form the receiving pocket. Furthermore, the handle and the alternating shaft may together form the receiving pocket. The receiving pocket may include a bottom and / or at least one side wall. In some embodiments, the bottom may be formed by the distal surface of the handle or the proximal surface of the alternating shaft. The side wall may be configured as a housing portion that protrudes beyond the relevant end face and at least partially surrounds the relevant end face. The receiving pocket may have a depth corresponding to at least 30%, at least 50%, and preferably greater than 50% of the height of the connector. In particular, the depth of the receiving pocket may be selected so that when the connector is inserted into the receiving pocket, the base of the connector is at least partially retained by the side wall.

[0035] Furthermore, the connection unit, in particular the receiving pocket, may include at least one positioning aid configured to predetermine a preferred rotational position of the connector, in particular within the receiving pocket. This can reduce the risk of incorrect connector placement. A false positive may mean that the movable electrical contact does not contact the desired number of immovable electrical contacts. This can increase operational safety and / or reliability. Furthermore, for example, unwanted relative rotational movement of the connector relative to the handle and / or the alternating axis can be prevented. The positioning aid may include a groove and / or a protrusion. The connection unit may include at least one positioning element formed and / or surrounded by the receiving pocket. Alternatively or additionally, the connection unit may include at least one positioning element formed and / or surrounded by the connector, in particular its base body. The positioning elements of the receiving pocket and / or the connector may be configured as protrusions and / or grooves. In particular, the receiving pocket may form and / or include at least a first positioning element, and the connector, in particular the base body, may form and / or include a second positioning element, wherein the first and second positioning elements are configured to correspond to each other. The first and second positioning elements may be arranged and configured such that they define a preferred rotational position, in particular a single preferred rotational position.

[0036] Furthermore, the alternating shaft and handle can be configured to be autoclavable and / or sterilizable separately from each other. Furthermore, the alternating shaft and / or handle can be configured to be gas-tight and / or fluid-tight. Particularly advantageously, despite the provision of a connection element, particularly electrical contacts, the alternating shaft and / or handle can be sterilizable and / or autoclavable. This can mean, for example, that during patient treatment, a user can have a variety of sterile alternating shafts at their disposal. These can be connected to the handle if necessary. However, the user does not need multiple handles, which can reduce treatment costs. After treatment, the relevant handle and the relevant alternating shaft can each be autoclavable and / or sterilizable. They are therefore readily available for further treatment. This gives the operator greater flexibility in selecting the camera head, particularly the primary viewing direction, and eliminates the need to adapt to a new, particularly differently shaped, handle.

[0037] Furthermore, the alternating shaft can include a proximal portion configured as a connection portion for a handle, the handle including a distal portion configured as an alternating shaft connection portion, and when the alternating shafts are connected, the connection portion and the alternating shaft connection portion form a fluid-tight and / or gas-tight connection. Advantageously, this ensures a safe and reliable mechanical connection between the alternating shaft and the handle. This increases operational safety and reduces the likelihood of errors. Furthermore, inadvertent contact of liquids and / or gases with one of the electrical contacts can be prevented. For example, the occurrence of short circuits and the like can be prevented. For example, the connection portion and the alternating shaft connection portion can be jointly configured as a bayonet closure and / or a screw closure.

[0038] Furthermore, the connection unit can be configured to wirelessly transmit energy and / or image data between the camera and the base electronics. This should be understood as an alternative to or in addition to the connector. For example, the connection unit can be configured to wirelessly transmit energy and / or image data only between the camera and the base electronics. This can advantageously reduce the number of contact pairs required to operate the alternating axes and / or simplify the structure.

[0039] Furthermore, the connection state of the alternating shaft can be produced and released without tools. Operability can be very simple. In particular, tool-free can mean that the user does not need any further objects to connect and / or release the alternating shaft with the handle.

[0040] According to the present invention, a connector for a medical imaging instrument is also provided. The connector may be an imaging instrument connector and / or an alternating axis connector.

[0041] Furthermore, the present invention provides a system, in particular a medical system. The system includes a medical imaging instrument, a first alternating axis, and a second alternating axis, wherein the alternating axis has different configurations. During operation, a user can advantageously alternate between the alternating axes of different configurations at will. In particular, only a single handle is required.

[0042] Furthermore, the camera of a first alternating axis can define a first principal viewing direction, and the camera of a second alternating axis can define a second principal viewing direction, and the first principal viewing direction can be different from the second principal viewing direction. For example, the first principal viewing direction can be 0°, and the second principal viewing direction can be 30°. For example, when using the same method, different principal viewing directions can be suitable for observing different anatomical structures. Advantageously, by alternating from the first alternating axis to the second alternating axis, the user can flexibly respond to the anatomical structure. This can increase flexibility and user-friendliness.

[0043] The present invention also provides a method for operating an imaging instrument according to the present invention, the imaging instrument having a connector configured separately from a handle and / or an alternating shaft. The method comprises the steps of connecting the alternating shaft to the handle via a first connector, releasing the alternating shaft from the handle, and connecting the alternating shaft to the handle via a second connector. Advantageously, the alternating shaft can be quickly and reliably released and exchanged.

[0044] Furthermore, the method may comprise the step of removing the first connector and / or the second connector from the sterile packaging before connecting the alternating shaft to the handle using the first connector and / or the second connector. Advantageously, the connectors are at least almost immediately ready for use.

[0045] Furthermore, the method may include the step of disposing of the first connector after releasing the alternating shaft from the handle. The connector can be designed as a cost-effective, disposable item. Consequently, the operation of the medical instrument can be more efficiently designed. By using alternating shafts of different configurations, it is possible to avoid the need for an entire medical instrument of different configurations, instead using only one handle. Autoclaving and / or sterilization of the medical instrument can be generally cheaper and / or more efficient because the overall volume of the device can be reduced.

[0046] In this case, the apparatus and system according to the present invention and the method according to the present invention should not be limited to the above-mentioned applications and embodiments. In particular, in order to achieve the functions described herein, the number of these elements, components and units and method steps can be different from the numbers mentioned herein. In addition, within the value ranges specified in this disclosure, the values ​​included within the stated limits will be considered disclosed and can be used as needed.

[0047] In particular, it should be noted that all features and properties described with respect to the device and the method are transferable to the method and can be used within the meaning of the present invention and are considered to be jointly disclosed. This also applies in the reverse direction. This means that within the scope of the device claim, structural features related to the method can also be considered and claimed, i.e., structural features of the device, and can also be included in the disclosure.

[0048] The present invention is explained below by way of example with reference to the accompanying drawings. The drawings, the description, and the claims combine to contain many features. A person skilled in the art will readily consider these features individually and in any combination thereof within the scope of the claims.

[0049] If there are more than one copies of a given object, only one of them may be given a reference number in the drawings and description. The description of this copy can be transferred accordingly to the other copies of the object. If the objects are specifically named using numerical terms, such as the first, second, third object, etc., these are used to name and / or assign the objects. Thus, for example, the first and third objects may be included, but the second object may not be included. However, the number and / or sequence of the objects can also be derived from the numerical terms.

[0050] In the attached figure: Figure 1 shows a schematic diagram of the system; Figure 2 shows a side view of the medical instrument in a released state; Figure 3 shows a perspective view of the connector; Figure 4 A schematic plan view showing a distal end surface of the connecting unit; Figure 5 A schematic plan view showing a proximal surface of the connecting unit; Figure 6 shows a schematic side view of the distal end of an alternating shaft; Figure 7 shows a schematic side view of another embodiment of a connector; Figure 8 A schematic plan view showing a distal end surface of the connecting unit; Figure 9 A schematic plan view showing a distal end surface of another embodiment of a connecting unit; Figure 10 a schematic cross-sectional view showing a portion of an alternative connection unit; and Figure 11 A schematic flow chart of a method for operating a medical instrument is shown.

[0051] Figure 1 The system 60, in particular a medical system, is shown, comprising a supply unit 78, a display unit 80, a medical instrument 10, in particular an endoscope, and a sterile packaging 76. The medical instrument 10 comprises a handle 12, alternating shafts 16, and a connection unit 20. The handle 12 comprises basic electronics 14. Furthermore, the handle comprises an operating element 84. The handle 12 is connected to the supply unit 78 via a cable 82.

[0052] The alternating shaft 16 is shown in a state connected to the handle 12, in particular in a releasable state, and includes a camera 18 suitable for generating image data. The camera 18 is connected to the basic electronic device 14 via a connection unit 20, and the image data generated by the camera 18 is transmitted to the basic electronic device 14 via the connection unit 20. The image data can be transmitted from the handle 12 to the supply unit 78 via a cable 82. In addition, the handle 12 can be powered by the supply unit 78, for example via the cable 82, and can receive signals, in particular control signals. The image data can be processed by the supply unit 78 and / or transmitted to a display unit 80. The display unit 80 is configured to display the image data to a user.

[0053] The alternating shaft 16 includes a shaft 86 that includes a heat pipe (not shown) and a supply line (not shown). The alternating shaft 16, particularly the shaft 86, extends along the longitudinal axis 36. According to this embodiment, the length of the alternating shaft is 40 cm. The camera 18 is disposed at the distal end 88 of the alternating shaft 16. The alternating shaft 16, particularly the camera 18, defines a primary viewing direction 66 that extends at least substantially parallel to the longitudinal axis 36, particularly at 0°. Furthermore, the alternating shaft includes an illumination element 90, particularly at its distal end 88.

[0054] Functions of the camera 18, such as focusing, recording start and / or recording end, can be controlled by the operating element 84. Furthermore, for example, the function of the lighting element 90, in particular the brightness, can be controllable.

[0055] exist Figure 1 In the embodiment shown, the axis of alternation 16 is a first axis of alternation 62 , and the main viewing direction 66 of the axis of alternation 16 is a first main viewing direction 68 .

[0056] A second alternating axis 64 is also provided. It has substantially the same features as the first alternating axis 62. However, some features of the second alternating axis 64 are different. For example, the second alternating axis 64 is 25 cm long. Furthermore, the second alternating axis 64, and in particular its camera, defines a second main viewing direction 70, which is different from the first main viewing direction 68. In this example, the second main viewing direction 70 is 45°.

[0057] A user can use medical instrument 10 to perform diagnostic and / or therapeutic actions. For example, the user can insert shaft 36 into a patient's body cavity to view anatomical structure 94. Anatomical structure 94 is displayed to the user via display unit 80. When performing diagnostic and / or therapeutic actions, the user may be limited by first primary viewing direction 68 of first alternating shaft 62. Therefore, the user can provide a second alternating shaft 64 according to the present invention and connect it to handle 12.

[0058] The user can release the first alternating shaft 62 from the handle 12 and remove and dispose of the connector (not shown). In addition, the user can remove the connector 22, particularly the second connector 74, from the sterile packaging 76. To connect the second alternating shaft 64 to the handle 12, the user can insert the second connector 74 into a receiving pocket of the handle 12, as will be described in more detail in the following figures, and can connect the second alternating shaft 64 to the handle 12, particularly without the need for tools.

[0059] Figure 2 Shown in released state Figure 1 The medical device 10 comprises a handle 12, a connecting unit 20 and an alternating shaft 16, in particular a second alternating shaft 64. In addition, the medical device 10, in particular the connecting unit 20, comprises a connector 22. The handle 12 and the alternating shaft 16 are configured to be autoclaved and / or sterilized separately from each other. The alternating shaft 16 comprises a proximal portion 52 configured as a connecting portion 54 for the handle 12. The handle comprises a distal portion 56 configured as an alternating shaft connecting portion 58. In the connected state of the alternating shaft 16 (see Figure 1 ), the connecting portion 54 and the alternating shaft connecting portion 58 form a fluid-tight and / or gas-tight connection. The connecting portion 54 is configured to at least partially accommodate the alternating shaft connecting portion 58, in particular to establish the connected state of the alternating shaft 16. The alternating shaft connecting portion 58 includes at least one protrusion 98, which is engaged by a closing element (not shown), which is configured to engage the protrusion 98 in the connected state of the alternating shaft 16. The connecting portion 54 is at least partially rotatably supported and may include an operating element 96. The rotatably supported portion of the connecting portion 54 can be rotated by the operating element 96, in particular by a user, and is configured to move the closing element (not shown) into a rearwardly engaged position of the protrusion 98. In particular, this mechanical connection can be produced without tools.

[0060] Furthermore, the connection unit 20 includes a housing pocket 48. In a connected state of the alternating shaft 16, the connector 22 is housed in the housing pocket 48.

[0061] Reference Figure 3, describing the connector 22 in more detail. The connector 22 is constructed separately from the handle 12 and / or the alternating shaft 16 and / or is intended for single use. The connection unit 20, in particular the connector 22, is configured to transmit electrical energy from the basic electronic device 14 to the camera 18. The connector 22 comprises a base 100. The base 100 has two opposing sides, a first side 38 and a second side 40. The first side 38 faces the handle 12 and the second side 40 faces the alternating shaft 16. The connector 22 comprises a first movable electrical contact 26 protruding from the first side 38. Furthermore, the connector comprises a second movable electrical contact 30 protruding from the second side 40. The first movable electrical contact 26 and the second movable electrical contact 30 comprise spring contact pins 42. It should be noted that several spring contact pins 42 share one reference numeral.

[0062] The first movable electrical contact 26 and the second movable electrical contact 30 are arranged in pairs and / or together form a contact pair 46. The first movable electrical contact 26 and the second movable electrical contact 30 are electrically connected to each other. The connector 22 also includes further first and second movable contacts 26, 30, which include spring contact pins 42, which are arranged in pairs and / or form contact pairs. For the sake of clarity, not all of these are marked with reference numerals. In addition, the connector 22 includes a positioning aid 50. The positioning aid 50 is configured as a protrusion on a third side 102 that is different from the first side 38 in the second side 40. The receiving pocket 48 also includes a positioning aid 104 that interacts with the positioning aid 50. The positioning aids 50, 104 are configured to predetermine a preferred rotational position of the connector 22, in particular in the receiving pocket 48.

[0063] Reference Figure 4 and Figure 5 , a portion of the connection unit 20 assigned to the handle 12 can be seen ( Figure 4 ) and a portion of the connecting unit 20 assigned to the alternating shaft 16 ( Figure 5). A first, flat, immovable electrical contact 24 is integrated into an at least substantially flat distal surface 32 of the handle 12. A second, flat, immovable electrical contact 28 is integrated into an at least substantially flat proximal surface 34 of the alternating shaft 16. In the connected state of the alternating shaft 16, the distal surface 32 and the proximal surface 34 are arranged at least substantially parallel to one another. The first immovable electrical contact 24 is connected to the basic electronics 14, the second immovable electrical contact 28 is connected to the camera. The handle 12 and the alternating shaft 16 each comprise a plurality of electrical contacts 44, which are flat and integrated into one of the end surfaces 32, 34. In the connected state of the alternating shaft 16, a contact pair 46 of the connector 22 connects in each case one contact 44 of the handle 12 to one contact 44 of the alternating shaft 16. In particular, the contacts 44 are acted upon by forces. The contacts 44 of the alternating shaft 16 can also be connected to other electrical consumers, for example a lighting element 90 and / or a computing unit. This is particularly alternating-axis-specific. With the aid of Figure 6 The schematic overview of FIG. 8 shows the distal end 88 of the alternating shaft 16 as an example.

[0064] Special reference Figure 4 As can be seen, on the handle side, the connecting unit 20 comprises a first wall 106 forming the receiving pocket 48. It can also be seen that the connecting unit 20 comprises a positioning aid 104. The positioning aid 104 is designed as a recess in the first wall 106. The positioning aid 50 of the connector 22 and the positioning aid 104 can form a form-fitting connection, in particular for predetermining a preferred rotational position.

[0065] Reference Figure 5 , it can be seen that the connecting unit 20 comprises a second wall 108 on the alternating shaft side. In the connected state of the alternating shaft 16, the second wall 108 can at least partially accommodate the first wall 106.

[0066] Figure 6 A schematic diagram of the distal end 88 of the alternating shaft 16 is shown in side view. Figure 1 and Figure 2 As shown, the camera 18 defines a main viewing direction 66 of 45°. The camera 18 includes an optical system 110 and an image sensor 112. The optical system 110 can be an active optical system. This may mean that focusing can be performed with the aid of the optical system 110. The camera 18, in particular the image sensor 112, is at least partially connected to the electrical contacts 44 on the alternating axis side. In the connected state of the alternating axis 16, the camera 18 is connected to the basic electronics 14. The alternating axis 16 also includes further electrical consumers 92. These are also connected to the electrical contacts 44 on the alternating axis side. In particular, the alternating axis 16 includes an illumination element 90, which is also connected to the electrical contacts 44 on the alternating axis side.

[0067] Figure 7 Another embodiment of the connector 22' is shown. The connector 22' comprises at least one first movable electrical contact 26' and at least one second movable electrical contact 30', which are arranged offset from each other relative to the longitudinal axis 36'. By means of the offset arrangement, a part of the contact, such as the base of the spring contact pin, can be arranged in the base 50' of the connector 22' and / or fixed to the corresponding rear side. Thus, commercially available single-sided spring contact pins can be used, although the overall length of the connector 22' can still be small. The two electrical contacts 26', 30' are electrically connected to each other and / or form a contact pair 46'. The connector 22' comprises a further contact pair 46', the electrical contacts of which can also be arranged offset relative to each other. The connector 22' can also comprise at least one pair of contacts', the electrical contacts of which are arranged concentrically relative to each other.

[0068] Figure 8 Another embodiment of the handle side portion of the connecting unit 20" is shown. Figure 4 , 104 ′.

[0069] In some embodiments, one or more positioning aids can be designed asymmetrically, so that the connector can only be used in a specific rotational position and, in addition, only in a specific orientation. This can be advantageous if the connector is designed to connect only in one orientation. In principle, positioning aids can be provided that are designed according to the principle of poka-yoke.

[0070] Figure 9A schematic diagram of another embodiment of a connection unit 20"" is shown. The connection unit 20"" comprises a handle-side portion and an alternating-axis-side portion. Each portion comprises a signal transmission unit 114 and an energy transmission unit 116. The connection unit 20"" is configured to transmit image data from the alternating axis 16"" to the handle 12"" in particular wirelessly and / or to transmit electrical energy from the handle 12"" to the alternating axis 16" in particular wirelessly. The signal transmission unit 114 can operate according to at least any wireless signal transmission protocol. In some embodiments, the signal transmission unit 114 can also be configured for optical signal transmission. To this end, the connection unit 20"" can comprise suitable windows and / or optical ports on each component. The energy transmission unit 116 can operate inductively. In particular, these can comprise at least one transmitter coil and / or at least one receiver coil. The alternating-axis-side portion comprises a wall 118, which is configured to at least partially accommodate the handle-side portion, however, this is to be understood as merely exemplary.

[0071] Figure 10 A schematic cross-sectional view of an alternative connecting unit 20"" is shown. This is constructed essentially in the same way as the connecting unit described above. The connecting unit 20"" comprises a connector 20"" with a base body 50". The connector 20"" comprises a spring contact pin 42", which is designed as a double-sided spring pin. The spring contact pin 42"" comprises a pin sleeve 130"" and two pin elements 132", 134"" which are elastically supported in the pin sleeve 130". The two pin elements 132", 134"" are spring-preloaded by a common spring element 130"" arranged in the pin sleeve 130". In the connected state, the spring contact pin 42"" therefore contacts the two electrical contacts to be connected to each other.

[0072] In the present case, the connection unit 20"" further comprises at least one immovable electrical contact 24"", which can be formed, for example, on the handle or the interchanging shaft. The immovable electrical contact 24"" is designed to be concave and / or spherical and / or hemispherical. Thus, the correspondingly designed tip of the spring contact pin 42"" can be accommodated in the contact 24"" and / or centered by it. In this case, all contacts of the handle and / or interchanging shaft to be contacted by the connector can be designed in this way.

[0073] It should be understood that this type of contact design and the use of double-sided spring contact pins do not necessarily have to be used in combination. Therefore, double-sided spring contact pins can also be combined with contacts of different designs and / or concave contacts and connectors of different designs.

[0074] Independent of the specific design of the connection unit, in some embodiments, the corresponding alternating axis may also include an energy storage device, such as a battery. The energy storage device may be configured to provide electrical energy to the alternating axis's power components (e.g., a camera or lighting element) in at least one operating state. The energy storage device may be rechargeable via the connection unit. Alternatively, the energy storage device may be rechargeable in other ways and / or be interchangeable. The connection unit may then be configured to transmit only image data, without transmitting electrical energy to supply the alternating axis's power components.

[0075] It will be appreciated that the embodiments of the connection unit 20 described herein are not restrictive. In particular, it will be appreciated that in each case the described handle-side portions may be provided on alternating shaft sides and vice versa.

[0076] Figure 11 A method for operating the medical imaging apparatus 10 is shown. For a detailed description, please refer to Figure 1 The method described below may be performed in any desired, meaningful order and / or individual steps may be omitted. The method includes a step 120 of connecting the alternating shaft 16 to the handle 12 via the first connector 72, a step 122 of releasing the alternating shaft 16 from the handle 12, a step 124 of connecting the alternating shaft 16 to the handle 12 via the second connector 74, a step 126 of removing the first connector 72 and / or the second connector 74 from the sterile packaging 76 prior to use in connecting the alternating shaft 16 to the handle 12, and a step 128 of disposing of the first connector 72 after the alternating shaft 16 is released from the handle 12.

[0077] Reference Signs List 10. Medical imaging equipment; 12 handles; 14 basic electronic equipment; 16 alternating axes; 18 cameras; 20 connection units; 22 connectors; 24 first non-movable electrical contact; 26 first movable electrical contact; 28 second non-movable electrical contact; 30 second movable electrical contact; 32 distal surface; 34 proximal surface; 36 longitudinal axis; 38 first side; 40 second side; 42 spring contact pin; 44 electrical contacts; 46 contact pairs; 48 holding bag; 50 positioning auxiliary device; 52 proximal part; 54 connecting part; 56 distal part; 58 alternating shaft connection portion; 60 systems; 62 first alternating axis; 64 second alternating axis; 66 main viewing direction; 68 first principal viewing direction; 70 second principal observation direction; 72 first connector; 74 second connector; 76 sterile packaging; 78 supply units; 80 display units; 82 cables; 84 operating elements; 86 axis; 88 distal end; 90 lighting elements; 92 other electricity consumers; 94 anatomy; 96 operating elements; 98 protrusions; 100 matrix; 102 third side; 104 positioning auxiliary device; 106 first wall; 108 second wall; 110 optical devices; 112 image sensor; 114 signal transmission unit; 116 energy transmission unit; 118 wall; 120 method steps; 122 method steps; 124 method steps; 126 method steps; 128 method steps; 130 pin sleeve; 132 pin components; 134 pin components.

Claims

1. A medical imaging instrument (10), in particular an endoscope, comprising: a handle (12), said handle comprising at least one basic electronic device (14); an alternating shaft (16) releasably connected to the handle (12) and comprising at least one camera (18) configured to generate image data; and A connection unit (20) is configured to connect the camera (18) to the base electronic device (14) and transmit image data from the camera (18) to the base electronic device (14).

2. The medical imaging apparatus (10) according to claim 1, in, The connection unit (20) is configured to transmit electrical energy from the base electronic device (14) to the camera (18).

3. The medical imaging apparatus (10) according to claim 1 or 2, in, The connecting unit (20) includes a connector (22) that is constructed separately from the handle (12) and / or the alternating shaft (16).

4. The medical imaging apparatus (10) according to claim 3, in, The connector (22) is for disposable use.

5. The medical imaging apparatus (10) according to claim 3 or 4, in, The connection unit (20) comprises a first non-movable electrical contact (24) which is part of the handle (12) and is connected to the base electronic device (14), and The connector (22) comprises a first movable electrical contact (26), wherein in the connected state of the alternating shaft (16), the first movable electrical contact (26) applies a force to the first immovable electrical contact (24).

6. The medical imaging apparatus (10) according to any one of claims 3 to 5, in, The connecting unit (20) comprises a second non-movable electrical contact (28) which is part of the alternating axis (16) and is connected to the camera (18), and The connector (22) comprises a second movable electrical contact (30), wherein in the connected state of the alternating shaft (16), the second movable electrical contact (30) applies a force to the second immovable electrical contact (28).

7. The medical imaging apparatus (10) according to claim 5 or 6, in, The first non-movable electrical contact (24) and / or the second non-movable electrical contact (28) are flat.

8. The medical imaging apparatus (10) according to any one of claims 5 to 7, in, The handle (12) has an at least substantially flat distal surface (32), the first non-movable electrical contact (24) being integrated into the distal surface (32), and Therein, the alternating shaft (16) has an at least substantially flat proximal surface (34), the second non-movable electrical contact (28) being integrated into the proximal surface (34).

9. The medical imaging apparatus (10) according to claim 8, in, In the connected state of the alternating shaft (16), the distal surface (32) of the handle (12) and the proximal surface (34) of the alternating shaft (16) are arranged at least substantially parallel to each other.

10. A medical imaging apparatus (10) at least according to claims 5 and 6, in, The first movable electrical contact (26) and the second movable electrical contact (30) are electrically connected to each other at least in a connected state of the alternating shaft (16).

11. A medical imaging apparatus (10) at least according to claims 5 and 6, in, The first movable electrical contact (26) and the second movable electrical contact (30) are arranged offset from each other relative to a longitudinal axis (36) of the alternating shaft (16).

12. A medical imaging apparatus (10) at least according to claims 5 and 6, Claims in, The first movable electrical contact (26) protrudes from a first side (38) of the connector (22), and wherein the second movable electrical contact (30) protrudes from a second side (40) of the connector (22) opposite the first side (38) of the connector (22).

13. The medical imaging apparatus (10) according to any one of claims 5 to 12, in, The first movable electrical contact (26) and / or the second movable electrical contact (30) comprises a spring contact pin (42).

14. A medical imaging apparatus (10) at least according to claims 5 and 6, in, The handle (12) and the alternating shaft (16) each include a plurality of electrical contacts (44), and The connector (22) comprises a plurality of first movable electrical contacts (26) and a plurality of second movable electrical contacts (30) arranged in pairs to form contact pairs (46), wherein in the connected state of the alternating shaft (16), each contact pair (46) connects one of the contacts (44) of the handle (12) to one of the contacts (44) of the alternating shaft (16).

15. The medical imaging apparatus (10) according to any one of claims 3 to 13, wherein: The connecting unit (20) includes a receiving bag (48), and Wherein, in the connected state of the alternating shaft (16), the connector (22) is accommodated by the accommodating bag (48).

16. The medical imaging apparatus (10) according to any one of the preceding claims, in, The connecting unit (20), in particular the receiving pocket (48), comprises at least one positioning aid (50, 104) which is provided to predetermine a preferred rotational position of the connector (22), in particular in the receiving pocket (48).

17. The medical imaging apparatus (10) according to any one of the preceding claims, in, The alternating shaft (16) and the handle (12) are configured to be autoclaved and / or sterilized separately from each other.

18. The medical imaging apparatus (10) according to any one of the preceding claims, in, The alternating shaft (16) includes a proximal portion (52) configured as a connection portion (54) for the handle (12), wherein the handle (12) includes a distal portion (56) formed as alternating shaft connection portions (58), and Wherein, in the connected state of the alternating shaft (16), the connecting portion (54) and the alternating shaft connecting portion (58) form a fluid-tight and / or gas-tight connection.

19. The medical imaging apparatus (10) according to any one of the preceding claims, in, The connection unit (20) is configured to wirelessly transmit energy and / or image data between the camera (18) and the base electronic device (14).

20. The medical imaging apparatus (10) according to any one of the preceding claims, in, The connected state of the alternating shaft (16) can be produced and released without tools.

21. A connector (22) for a medical imaging instrument (10) according to any one of claims 1 to 20.

22. A system (60), in particular a medical system, comprising: The medical imaging apparatus (10) according to any one of claims 1 to 20, first alternating axis (62); and Second alternating axis (64); Therein, the alternating shafts (62, 64) have different configurations.

23. The system according to claim 22, in, The camera (18) of the first alternating axis (62) defines a first main viewing direction (68), wherein the camera (18) of the second alternating axis (16) defines a second main viewing direction (70), and Wherein, the first main observation direction (68) is different from the second main observation direction (70).

24. A method for operating a medical imaging apparatus (10) according to at least claim 3, the method comprising: connecting the alternating shaft (16) to the handle (12) via a first connector (72); releasing the alternating shaft (16) from the handle (12); and The alternating shaft (16) is connected to the handle (12) via a second connector (74).

25. The method according to claim 24, further comprising: Before the first connector (72) and / or the second connector (74) are used to connect the alternating shaft (16) to the handle (12), they are removed from the sterile packaging (76).

26. The method according to claim 24 or 25, further comprising: The first connector (72) is disposed of after releasing the alternating shaft (16) from the handle (12).

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