Components for use in medical diagnostic devices and systems for analyzing samples

Abstract

Disclosed is a component used in a medical diagnostic device and system for analyzing one or more samples. In one aspect of the present invention, the component includes: at least one extensible sample tray configured to hold one or more samples. Additionally, the component includes: at least one holding unit coupled to the at least one extensible sample tray, wherein the holding unit is configured to hold a calibration marker. Further, the extensible sample tray and the holding unit are arranged in the same plane, and when the extensible sample tray is extended, the at least one holding unit is brought into the field of view of an image capture unit.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 048,398, filed Jul. 6, 2020, under 35 USC § 119(e). The entire content of the above patent application(s) is hereby expressly incorporated by reference herein. Field of the Invention

[0002] The present disclosure relates to the field of medical diagnostic devices and systems for analyzing samples, and more particularly, to the field of components for use in medical diagnostic devices and systems for analyzing samples. Background of the Invention

[0003] There is a current need for efficient and accurate diagnosis of diseases. Medical diagnostic devices enable the analysis of a given sample to identify the presence or absence of a disease in an individual. For a medical diagnostic device to work accurately, calibration of the medical device is necessary. Calibration confirms the reliability of the results obtained from the medical device. Medical diagnostic devices, particularly bioanalyzers, are mainly colorimetric and thus use the color obtained from tests performed by the bioanalyzer to interpret the results. In such medical diagnostic devices, the placement of the calibration unit is critical because any spillage or splashing of the sample being tested can contaminate the medical device and impede or hinder the accuracy of the results. Additionally, medical diagnostic devices can be large in size and may require increased storage space.

[0004] Accordingly, there is a need for a medical diagnostic device in which the calibration unit can be positioned in such a way that the calibration unit remains untouched, clean, and undamaged. Additionally, there is a need for a medical diagnostic device with a smaller footprint. Summary of the Invention

[0005] Disclosed is a component for use in a medical diagnostic device for analyzing one or more samples. In one aspect, the component includes at least one extendable sample tray, wherein the sample tray can be configured to hold the one or more samples. The component further includes: at least one holding unit configured to hold a color check card. The at least one holding unit can be coupled to the at least one extendable sample tray. In particular, the at least one sample tray and the at least one holding unit are arranged in the same plane such that when the at least one sample tray is extended, the at least one holding unit is brought into the field of view of the image capture unit.

[0006] In another aspect, a medical diagnostic device for analyzing one or more samples is disclosed. The medical diagnostic device includes components for use in the medical diagnostic device, an image capture unit configured to capture one or more images of one or more samples, an illumination unit configured to illuminate one or more samples, and an analyzer unit configured to analyze one or more samples. The medical diagnostic device further includes a processing unit and a memory coupled to the processing unit. Additionally, the memory includes a module that can be configured to perform the extension of at least one extendable sample tray in the medical diagnostic device. Further, when the at least one extendable sample tray is extended, at least one holding unit is brought into the field of view of the image capture unit.

[0007] In yet another aspect, a system for analyzing one or more samples is disclosed. The system includes one or more servers and the medical diagnostic device according to claim 8. The medical diagnostic device can be communicatively coupled to the one or more servers. The one or more servers can include computer-readable instructions that, when executed by the one or more servers, cause the one or more servers to perform the extension of at least one extendable sample tray in the medical diagnostic device such that when the at least one extendable sample tray is extended, at least one holding unit is brought into the field of view of the image capture unit in the medical diagnostic device.

[0008] In another aspect, a non-transitory computer-readable storage medium has machine-readable instructions for performing the extension of at least one sample tray in a medical diagnostic device such that when the at least one sample tray is extended, at least one holding unit is brought into the field of view of the image capture unit in the medical diagnostic device.

[0009] The present invention content is provided to introduce in a simplified form a selected set of concepts that are further described below in the following description. The present invention content is not intended to identify the features or essential features of the claimed subject matter. Additionally, the claimed subject matter is not limited to implementations that solve any or all of the disadvantages mentioned in any part of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described below with reference to the illustrated embodiments shown in the accompanying drawings, in which:

[0011] Figure 1 A block diagram showing a client-server architecture for providing geometric modeling of components representing different parts of a real-world object according to an embodiment is shown.

[0012] Figure 2 A block diagram showing a medical diagnostic device for analyzing one or more samples according to an embodiment of the present invention is shown.

[0013] Figure 3 A block diagram of a medical diagnostic device for analyzing one or more samples according to an embodiment of the present invention is shown.

[0014] Figure 4A A top view of components for use in a medical diagnostic device for analyzing one or more samples according to a first embodiment of the present invention is shown.

[0015] Figure 4B A side view of components for use in a medical diagnostic device according to a first embodiment of the present invention is shown.

[0016] Figure 5 Components for use in a medical diagnostic device for analyzing one or more samples according to a second embodiment of the present invention are shown.

[0017] Figure 6A and 6B Multiple views of components for use in a medical diagnostic device for analyzing one or more samples according to a third embodiment of the present invention are shown. Detailed Description

[0018] Hereinafter, embodiments for implementing the present invention are described in detail. Various embodiments are described with reference to the accompanying drawings, in which like reference numerals are always used to refer to like elements. In the following description, for the purpose of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be apparent that such embodiments may be practiced without these specific details. In other instances, well-known materials or methods are not described in detail so as not to unnecessarily obscure the embodiments of the present disclosure. Although the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will be described in detail herein. However, it should be understood that there is no intention to limit the present disclosure to the particular forms disclosed, but on the contrary, the present disclosure will cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0019] Figure 1Provides an illustration of a block diagram of a client - server architecture according to an embodiment, which is a geometric modeling of components representing different parts of real - world objects. The client - server architecture 100 includes a server 101 and a plurality of client devices 107.1 - 107.2. Each of the client devices 107.1 - 107.2 is connected to the server 101 via a network 106, such as a local area network (LAN), wide area network (WAN), WiFi, etc. In one embodiment, the server 101 is deployed in a cloud computing environment. As used herein, "cloud computing environment" refers to a processing environment that includes configurable computing physical and logical resources (e.g., networks, servers, storage, applications, services, etc.) and data distributed over the network 106 (e.g., the Internet). The cloud computing environment provides on - demand network access to a shared pool of configurable computing physical and logical resources. The server 101 may include a database 102 that includes captured images of one or more samples. The server 101 may include a module 103 that may be configured to perform the stretching of at least one sample tray in a medical diagnostic device. Additionally, the server 101 may include a network interface 104 for communicating with the client devices 107.1 - 107.2 via the network 105.

[0020] The client devices 107.1 - 107.2 include a medical diagnostic device 107.1 for analyzing one or more samples. The device 107.1 may be configured to analyze one or more samples and capture images of one or more samples. Such images may be sent to the server 101 via the network interface. The client devices 107.1 - 107.2 also include a user device 107.2 used by a user. In an embodiment, the user device 107.2 may be used by the user to receive one or more information from the medical diagnostic device 107.1. The user may access one or more information via a graphical user interface of an end - user web (World Wide Web) application on the user device 107.2.

[0021] Figure 2 Is a block diagram of the system 200, where an embodiment may be implemented, for example, as a system for analyzing one or more samples, which is configured to perform the processes described herein. It is to be understood that the server 101 is Figure 2 an exemplary implementation of the system in Figure 2 In, the system 200 includes a processing unit 201, a memory 202, a storage unit 203, an input unit 204, an output unit 205, a network interface 104, a standard interface or bus 206. As an alternative, the system 200 may be a group of real or virtual computers (the technical term for a group of real computers is "cluster", and the technical term for a group of virtual computers is "cloud").

[0022] As used herein, processing unit 201 refers to any type of computing circuitry, such as but not limited to a microprocessor, a microcontroller, a complex instruction set computing microprocessor, a reduced instruction set computing microprocessor, a very long instruction word microprocessor, an explicitly parallel instruction computing microprocessor, a graphics processor, a digital signal processor, or any other type of processing circuitry. Processing unit 201 may also include an embedded controller, such as a general or programmable logic device or array, an application specific integrated circuit, a single-chip computer, and so on. Generally, processing unit 201 may include hardware elements and software elements. Processing unit 201 may be configured for multi-threading, i.e., processing unit 201 may simultaneously host different computing processes, execute in parallel, or switch between active and passive computing processes.

[0023] Memory 202 may be volatile memory and non-volatile memory. Memory 202 may be coupled for communication with processing unit 201. Processing unit 201 may execute instructions and / or code stored in memory 202. Various computer-readable storage media may be stored in and accessed from memory 202. Memory 202 may include any suitable elements for storing data and machine-readable instructions, such as read-only memory, random access memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, hard disk drives, removable media drives for handling optical discs, digital video discs, magnetic disks, magnetic tape cartridges, memory cards, and so on. In this embodiment, memory 202 includes module 103 stored in any of the above storage media in the form of machine-readable instructions, and may communicate with and be executed by processing unit 201. When executed by processing unit 201, module 103 causes processing unit 201 to perform the extension of at least one sample tray in medical diagnostic device 107.1.

[0024] Storage unit 203 may be a non-transitory storage medium storing database 102. Database 102 is a repository of images and other associated information associated with one or more samples analyzed by medical diagnostic device 107.1. Input unit 204 may include an input device capable of receiving an input signal, such as a keyboard, a touch-sensitive display, a camera, etc. Bus 206 serves as an interconnection between processing unit 201, memory 202, storage unit 203, communication interface 107, input unit 204, and output unit 205.

[0025] Those of ordinary skill in the art will understand Figure 2The hardware depicted may vary for a particular implementation. For example, other peripheral devices such as optical disc drives, etc., local area network (LAN) / wide area network (WAN) / wireless (e.g., Wi-Fi) adapters, graphics adapters, disk controllers, input / output (I / O) adapters, network connection devices may be used in addition to or in place of the depicted hardware. The examples depicted are provided for purposes of explanation only and are not meant to imply architectural limitations with respect to the present disclosure.

[0026] A system according to an embodiment of the present disclosure includes an operating system that employs a graphical user interface. The operating system allows multiple display windows to be presented simultaneously in the graphical user interface, where each display window provides an interface to a different application or to different instances of the same application. A cursor in the graphical user interface can be manipulated by a user via a pointing device. The position of the cursor can be changed, and / or an event such as clicking a mouse button is generated to initiate a desired response.

[0027] If appropriately modified, one of various commercial operating systems can be employed, such as a version of Microsoft Windows, a product of Microsoft Corporation, Redmond, Washington. As described, the operating system is modified or created according to the present disclosure. TM The version. As described, the operating system is modified or created according to the present disclosure.

[0028] The present invention is not limited to a particular computer system platform, processing unit, operating system, or network. One or more aspects of the present invention may be distributed among one or more computer systems (e.g., servers configured to provide one or more services to one or more client computers or to perform a complete task in a distributed system). For example, one or more aspects of the present invention may be executed on a client - server system that includes components distributed among one or more server systems, where the one or more server systems perform multiple functions according to various embodiments. These components include, for example, executable, intermediate, or interpreted code, and these components communicate via a network using a communication protocol. The present invention is not limited to being executable on any particular system or group of systems, and is not limited to any particular distributed architecture, network, or communication protocol.

[0029] Figure 3A block diagram of a medical diagnostic device 107.1 for analyzing one or more samples according to an embodiment is shown. The device 107.1 may include a housing 301 to hold one or more components associated with the medical diagnostic device 107.1. One or more components in the housing 301 may include an assembly of one or more components. The assembly includes at least one extendable sample tray 302 configured to hold one or more samples, at least one holding unit 303 configured to hold calibration marks, an illumination unit 305, an image capture unit 304, and an analyzer unit 306. The one or more samples may be, for example, a urine analysis cassette. Upon receiving a trigger, the extendable sample tray 302 may protrude or extend out from the housing of the medical diagnostic device 107.1. The trigger may be, for example, manual or a signal received from a processing unit associated with the medical diagnostic device 107.1. For example, a manual trigger may be provided by pressing one or more buttons on the medical diagnostic device 107.1, the buttons being configured to trigger the extension of the extendable sample tray 302. In an embodiment, such extension or protrusion of the extendable sample tray 302 may occur in a plane parallel to the plane of the surface on which the medical diagnostic device 107.1 is placed. At least one holding unit 303 may be coupled to the extendable sample tray 302 such that the extension of the extendable sample tray 302 brings at least one holding unit 303 into the field of view of the image capture unit 304. In an embodiment, the extendable sample tray 302 may have a width proportional to the average width of the one or more samples. The length of the extendable sample tray 302 may be, for example, in the range of 15 - 20 cm.

[0030] One or more marks may be present on the surface of the extendable sample tray 302 configured to receive one or more samples for further analysis. The one or more marks may be an indication of the locations on the extendable sample tray 302 where the one or more samples will be placed for further analysis. Thus, when the one or more samples are placed on the one or more marks, the closing of the extendable sample tray 302 causes the one or more samples to appear in the field of view of the image capture unit 304. In a further embodiment, the extendable sample tray 302 may have one or more arrangements for fixing the one or more samples to the surface of the extendable sample tray 302. Fixing the one or more samples to the surface of the extendable sample tray 302 may prevent the one or more samples from moving away from the designated area or spilling onto the assembly. When brought into the field of view of the image capture unit 304, the one or more samples may be illuminated using the illumination unit 305 in the medical diagnostic device 107.1. The illumination unit 305 may illuminate the one or more samples uniformly to effectively analyze the one or more samples. The illumination unit 305 may include, for example, one or more LED bulbs capable of producing light of a predetermined intensity and wavelength.

[0031] In an embodiment, at least one holding unit 303 may include a container for holding calibration marks. The calibration marks may include, for example, a color check card. The color check card may be used to perform calibration of the medical diagnostic device 107.1. The at least one holding unit 303 may be positioned in the same plane as the plane of the extendable sample tray 302. The container in the at least one holding unit 303 may be a notch in which the calibration marks may be placed. The size of the container may be proportional to the size of the calibration marks. In an alternative embodiment, the container may be capable of holding multiple calibration marks. In another embodiment, the holding unit 303 may be part of the extendable sample tray 302. In a further embodiment, the at least one holding unit 303 may have an arrangement for preventing any part of one or more samples from contacting the calibration marks due to sample spillage. The arrangement may include: a layered hydrophobic substance, which may prevent the sample from contacting the calibration marks. Alternatively, a bristled attachment may be positioned at the entrance of the holding unit, which may prevent one or more samples from contacting the calibration marks.

[0032] The image capture unit 304 may be positioned in a plane perpendicular to the plane of the at least one extendable sample tray 302 and the at least one holding unit 303. The image capture unit 304 may be positioned such that one or more samples on the extendable sample tray 302 or the calibration marks on the at least one holding unit 303 are entirely within the field of view of the image capture unit 304. The image capture unit 304 may include an imaging lens and an imaging sensor configured to capture an image of one or more samples. The imaging sensor may be, for example, a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). In a further embodiment, the image captured by the image capture unit 304 may be analyzed by the analyzer unit 306. The analyzer unit 306 may be configured to analyze one or more colors associated with one or more samples.

[0033] Figure 4A and 4BTop and side views are respectively shown of components 415, 420 for use in a medical diagnostic device 107.1 for analyzing one or more samples. In this embodiment, the extendable sample tray 401 is coupled on one side to a motorized gear 402. The motorized gear 402 can be, for example, a spur gear. The racks 403, 405 can be attached to the extendable sample tray 401 on both sides, i.e., along the height of the extendable sample tray 401. The motorized spur gear 402 can be coupled to the extendable sample tray 401 such that the teeth of the motorized spur gear 402 fit into at least one slot of the rack 403 attached to the extendable sample tray 401. Thus, a rack and pinion mechanism is implemented. The extendable sample tray 401 can be coupled on the opposite side of the motorized gear 402 to a non-motorized gear 404. The non-motorized gear 404 can have an arrangement similar to that of the rack 405 attached to the extendable sample tray 401 such that the teeth of the non-motorized gear 404 fit into the slots of the rack 405. The non-motorized gear 404 can be further coupled to an extension arm 406. The extension arm 406 is connected to at least one holding unit 407 that holds a calibration marker 409. In the embodiment, when the motorized gear 402 spins clockwise, the non-motorized gear 404 spins counterclockwise and vice versa. Thus, for example, as depicted in component 420, when the motorized gear 402 rotates counterclockwise, the extendable sample tray 401 extends out from the medical diagnostic device 107.1. Additionally, the extension of the extendable sample tray 401 causes the non-motorized gear 404 to rotate clockwise. Thus, the extension arm 406 attached to the non-motorized gear 404 moves clockwise, thereby bringing at least one holding unit 407 into the field of view 408 of an image capture unit 410 that may be located in a plane perpendicular to the extendable sample tray 401. A clockwise rotation of the motorized gear 402 will cause the extendable sample tray 401 to retract into the medical diagnostic device 107.1. Additionally, the non-motorized gear 404 rotates counterclockwise, thereby moving the extension arm 406 connected to at least one holding unit 407 out of the field of view of the image capture unit 410.

[0034] Figure 5Shows another embodiment of components used in a medical diagnostic device 107.1 for analyzing one or more samples. In this embodiment, within the housing 501 of the device 107.1, at least one holding unit 502 is connected to the extensible sample tray 503. Thus, at least one holding unit 502 is in the same plane as the plane of the extensible sample tray 503. At least one holding unit 502 is attached to one end of the extensible sample tray 503 such that when the extensible sample tray 503 extends, at least one holding unit 503 appears in the field of view 504 of the image capture unit 505 of the medical diagnostic device 107.1. The image capture unit 505 can be communicatively coupled to the analyzer unit 507. In a further embodiment, at least one holding unit 502 can be wound into a coil. Once wound, the holding unit 502 can be placed within the housing unit 506 such that when the extensible sample tray 503 extends, the holding unit 502 unwinds from the housing unit 506. The holding unit 502 can be made of a ductile material such that winding of the holding unit 502 can be achieved. For example, the holding unit 502 can be made of a synthetic polymeric material that can be wound but can maintain a stable shape when unwound. For example, the holding unit 502 can be composed of quartz fibers, polyethylene terephthalate (PET), polycarbonate (PC), etc. When the holding unit 502 is in the field of view of the image capture unit 505, calibration marks can be embedded or fixed on the surface of the holding unit 502 that can face the image capture unit 505. Thus, the winding of the holding unit 502 can also wind the calibration marks into the housing unit 506. In an embodiment, the housing unit 506 can have an opening through which the holding unit 502 enters and winds radially around the roller unit. The holding unit 502 can be engageable with the roller unit such that winding and unwinding of the holding unit 502 can be achieved. In an embodiment, a motor can be used to control the roller unit within the housing unit 506. The opening of the housing unit 506 can have a brush-like attachment 508 that can enable wiping of the holding unit 502 before the holding unit 502 is wound into the housing unit 506. The brush-like attachment 508 can also wipe the holding unit 502 when unwinding the holding unit 502 from the housing unit 506. Advantageously, any dust that may be present on the holding unit 502 is removed by the brush-like attachment 508.

[0035] Figure 6A and 6BShows multiple views of components for use in a medical diagnostic device 107.1 for analyzing one or more samples. The medical diagnostic device 107.1 includes an extensible sample tray 601 and at least one holding unit 602 that are aligned with each other and in the same plane. The extensible sample tray 601 is coupled to the at least one holding unit 602 such that extension of the extensible sample tray 601 brings the at least one holding unit 602 into the field of view of the image capture unit. The upper surface of the at least one holding unit 602 holds a calibration mark 603. Thus, at a given point in time, either the extensible sample tray 601 or the at least one holding unit 602 is in the field of view of the image capture unit. In the figure, the image capture unit is present within a housing 604 located above the extensible sample tray 601 and the coupled holding unit 602. In this embodiment, when triggered, the extensible sample tray 601 extends from a slot in the medical diagnostic device 107.1, as depicted in components 610, 620, 630, 640. When the extensible sample tray 601 extends, the at least one holding unit 602 is brought into the field of view of the image capture unit. Retracting the extensible sample tray 601 into the medical diagnostic device 107.1 brings the extensible sample tray 601 into the field of view of the image capture unit while moving the at least one holding unit 602 out of the field of view of the image capture unit, as depicted in component 610. The slot 605 can separate the extensible sample tray 601 and the at least one holding unit 602. In a further embodiment, the extension and retraction of the extensible sample tray 601 and the at least one holding unit 602 from the field of view of the image capture unit can be performed by a motor. Such a motor can be coupled to the extensible sample tray 601 and / or the at least one holding unit 602.

[0036] Advantages of the present invention are: reducing the overall footprint of the medical diagnostic device 107.1 in a laboratory facility. Thus, the medical diagnostic device 107.1 occupies less space. Additionally, the extensible sample tray and the holding unit can be arranged such that the holding unit does not block the field of view during image acquisition of one or more samples placed on the extensible sample tray. Further, since the movement of the extensible sample tray and the holding unit is automated, the need for manual handling and manual calibration of the device is eliminated. Thus, the accuracy of the post - analysis results of one or more samples is maintained. Additionally, the presence of the brush - type attachment avoids contact of spilled samples with the calibration mark. Thus, any contamination of the system is avoided.

[0037] The foregoing examples are provided for illustrative purposes only and should in no way be construed as a limitation of the invention disclosed herein. Although the invention has been described with reference to various embodiments, it is to be understood that the words used herein are words of description and illustration, not of limitation. Moreover, although the invention has been described herein with reference to specific apparatus, materials, and embodiments, the invention is not intended to be limited to the details disclosed herein; rather, the invention extends to all functionally equivalent structures, methods, and uses such as are within the scope of the appended claims. Those skilled in the art who have benefited from the teachings of this specification may make many modifications to this specification and may change its aspects without departing from the scope and spirit of the invention.

Claims

1. A component for use in a medical diagnostic device configured to analyze one or more samples, the component comprising: At least one extendable sample tray configured to hold the one or more samples; And At least one holding unit coupled to the at least one extendable sample tray, wherein the at least one holding unit is configured to hold calibration marks; Wherein the at least one extendable sample tray and the at least one holding unit are arranged in the same plane; and Wherein when the at least one extendable sample tray is extended, the at least one holding unit is brought into the field of view of an image capture unit, Wherein the at least one holding unit is automatically windable into a housing unit, and The holding unit is engageable with a roller unit such that winding and unwinding of the holding unit is achieved.

2. The component according to claim 1, wherein Extension of the at least one extendable sample tray winds out the at least one windable holding unit from the housing unit.

3. The component according to any one of the preceding claims 1 - 2, further comprising a brush - type attachment placed at an opening of the housing unit.

4. The component according to claim 1, further comprising one or more motorized gears coupled to the at least one extendable sample tray and the at least one holding unit for performing extension of the at least one extendable sample tray and movement of the at least one holding unit.

5. The component according to any one of the preceding claims 1-2, wherein, The image capture unit is positioned in a plane perpendicular to the plane of the at least one extendable sample tray and the at least one holding unit.

6. The component according to any one of the preceding claims 1-2, wherein, When the at least one extendable sample tray is brought into the field of view of the image capture unit, the one or more samples on the extendable sample tray are illuminated by a light source.

7. A medical diagnostic device for analyzing one or more samples, the device comprising: The component according to any one of claims 1 to 6; An image capture unit configured to capture one or more images of the one or more samples; A lighting unit configured to illuminate the one or more samples; An analyzer unit configured to analyze the one or more samples; A processing unit; And A memory coupled to the processing unit, the memory comprising modules, wherein the modules are configured to perform extension of the at least one extendable sample tray in the medical diagnostic device such that when the at least one extendable sample tray is extended, at least one holding unit is brought into the field of view of the image capture unit.

8. A system for analyzing one or more samples, the system comprising: One or more servers; And The medical diagnostic device according to claim 7, communicatively coupled to the one or more servers, wherein the one or more servers include computer-readable instructions that, when executed by the one or more servers, cause the one or more servers to perform the extension of at least one extendable sample tray in the medical diagnostic device, such that when the at least one extendable sample tray is extended, at least one holding unit is brought into the field of view of an image capture unit in the medical diagnostic device.

9. A non-transitory computer-readable storage medium having machine-readable instructions stored therein, the machine-readable instructions causing the server to perform the extension of at least one extendable sample tray in the medical diagnostic device according to claim 7 when executed by the server, such that when the at least one extendable sample tray is extended, at least one holding unit is brought into the field of view of an image capture unit in the medical diagnostic device, wherein, The at least one holding unit is automatically windable into a housing unit, and wherein the holding unit is engageable with a roller unit such that winding and unwinding of the holding unit are achieved.

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