JP2018005070A - Dermoscope adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To image a dermoscope image after imaging the carte and the clinical part (region of body such as the arms, the hands, and the back and the like imaged by the dermoscope) and, in this way, the image of the patient is imaged in a SD card and the like so that the image of the patient is specified, and this can prevent the patient and the imaged images for the patient from being mistaken each other.SOLUTION: A dermoscope adaptor is required to be fixed by an accurate positional relation when finally attached, and required to be not outside of the optical center. For this implementation, the magnet strongly attracting each other is required. A plurality of magnets is arranged on a cylindrical circumference so that a force attracting each other in parallel to the optical axis is exerted. Since a magnetic force is strong, the center of the magnet stops at the site by attracting each other. Depending on the arrangement site of the magnet, the accuracy of the fixed site is finally determined. When a cylinder is rotated counter-clock wise, the magnetic force of the magnet is laterally directed so that the magnetic force becomes weak and even the modest rotational force is not required to be easily capable of dislocating the magnet.SELECTED DRAWING: Figure 1

Description

   The present invention relates to an apparatus in which a digital camera and an adapter for a dermoscope can be easily detached with a dermoscope.

  Usually, a digital dermoscope (which enlarges and images pigmentation of a predetermined size of skin with a digital camera) is a system in which a dermoscope module is attached to a digital camera and the skin surface and dermis can be observed. When joining a digital camera and a module at this time, there is an optical lens in both, and it is necessary to optically deviate the optical axis as much as possible, and only the camera needs to be imaged. there is.

JP 2008-076916 A Japanese Patent Laying-Open No. 2015-022035

  The dermoscope is also used as a means of diagnosing cancer by observing skin pigmentation (such as a mole). At that time, the dermoscope is completed by attaching a dermoscope module to the digital camera. At that time, as a system function, the camera alone captures the chart and the clinical department (body area, arms, hands, back, etc. for taking a dermoscope image), and then uses the camera mounting screws After attaching the adapter mount, attach the camera adapter (dermoscope module) and take a dermoscope image. As a result, the images of the patient are specified because the images are taken sequentially on the SD card or the like. In order to prevent the patient and the captured image captured for the patient from being mixed up, a continuous image is used. It is necessary that the adapter can be easily exchanged with one touch. Therefore, a margin (backlash) is given in the dimensions, but the backlash is absorbed by the magnet. In addition, it is possible to realize that the lens of the module is aligned with the optical center of the camera lens and that it is necessary for performance. In the above system, a system is constructed in which the two types of adapters can be easily removed and replaced with one touch, and the optical center does not shift.

   In the present invention, as a dermoscope, a dimensional tolerance is slightly increased in order to easily remove the camera and the dermoscope module. However, permanent magnets are used for final positioning.

A system in which the mount part can be attached to the digital camera and the dermoscope adapter can be easily attached / detached. Using a permanent magnet, it is possible to place a lens with precision, and by adopting plastic that is compatible with the magnet, it is compact. A digital dermoscope that is lightweight, can be easily handled by dermatologists with many female doctors, and can capture a single camera image and a dermoscope image can be realized.

Cross section of digital dermoscope Configuration diagram of module adapter and camera adapter Digital dermoscope cross section Camera adapter front view Module adapter front view Permanent magnet overview Stopper parts drawing

 The present invention will be described with reference to examples.

  An example of application to a digital dermoscope as shown in Fig. 1 is explained. The camera mount unit connected to the camera 1 in FIG. 1 and the camera adapter (dermoscope module) 4 in FIG. 1 are shown in the figure. The lens part of the camera comes in and out by zooming as shown in 7 in FIG. The camera adapter has an illumination LED (12 in FIG. 3) and its power supply, and can be turned ON / OFF by the switch 6 in FIG. The camera adapter has an optical lens (13 in FIG. 3) for enlargement. In addition, the markers 3 in FIG. 1 and the marker 5 in FIG. 1 are arranged for connecting the camera adapter. Figure 4 shows an enlarged view of the camera mount. In FIG. 5, ten protruding collars, concave portions and a plurality of permanent magnets at the connecting portion on the adapter side are arranged. As shown in Fig. 4, there is a part with a groove to receive the collar and a recessed part where the collar falls to the groove part. Similarly, multiple magnets are arranged. The opposite magnetic poles are arranged so that the magnetic poles of each permanent magnet (FIG. 6) attract each other. When the mount part and the adapter are aligned with the marker and connected, the convex part and the concave part engage with each other and the collar enters, and when the adapter is rotated clockwise, the collar enters the groove and rotates smoothly. The magnets facing each other attract each other, and the rotation stops and the state is maintained.

Usually, a gel is put on the glass on the front of the dermoscope, and it is pressed against the skin and brought into contact with the image. However, since it is installed in the same direction as the magnetic force attracted by the magnet, the magnetic force will not be weakened.
If a circular magnet is used and the diameter of the magnet is 4 mm, 5 to 6 pieces are required from the total magnetic force, and the magnets are arranged uniformly. When the diameter is 5 to 6 mm, about 3 to 4 magnets are required.

  Since the magnets are arranged with high accuracy, it is possible to obtain the accuracy with which the optical centers of the camera and adapter lenses coincide. In order to stop at just the right position, a stopper as shown in FIG. 7 can be installed in the groove of the collar. It is better to use neo-jum as a small and powerful magnet. The mount and camera adapter can be made lighter using plastic. Delrin is easy to cut.

DESCRIPTION OF SYMBOLS 1: Camera 2: Camera mount part 3: Mount part marker 4: Camera adapter part 5: Camera adapter part marker 6: Switch for illumination 7: Camera lens 8: Mount part permanent magnet 9: Groove 10: Brim which enters groove 11: Camera adapter part permanent magnet 12: LED for illumination

Claims (3)

A dermoscope adapter comprising a mount part and an adapter part used for a dermoscope for observing and recording skin, etc., including a positioning mark, a protruding part, an optical glass for skin contact, an illumination LED, an optical lens for enlargement, a plurality Plastic adapter part with a mount part with neodymium magnets of 3 to 7 mm in diameter spaced apart, a screw part for connecting to the camera, a fixing screw for fixing the camera, and a magnet provided on the adapter when locked An adapter for a dermoscope comprising: a neodymium magnet having a reverse polarity provided at a position corresponding to 1; a hollow portion located at a position corresponding to the protruding portion; and a plastic mount portion having a connection positioning mark. 2. The adapter for a dermoscope according to claim 1, wherein the adapter is a mount portion having stopper portions at both ends for stopping the adapter portion and the mount portion at opposite positions. A dermoscope camera comprising the dermoscope adapter according to claim 1 or 2 attached thereto.

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