JP2006095238A - Ophthalmological apparatus and ophthalmological image recording system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ophthalmological apparatus and an ophthalmological image recording system using the same by which ophthalmological images can be easily backed up without using a personal computer, an outboard recorder or the like. <P>SOLUTION: The ophthalmological apparatus has a shooting means (CCD 4) which is provided on an ophthalmological apparatus body and shooting eyes to be examined, a main image recording means (main image recording device 7) for recording the ophthalmological images from the shooting means (CCD 4), a recording medium (a recording media) attachable to and detachable from the main image recording means (main image recording device 7), a sub-image recording means (backup memory 8) for backup, and a control circuit (operation control unit 5). In addition, the control circuit (operation control unit 5) deletes image data from the sub-image recording means (backup memory 8) when the number of times of attachment/detachment of the recording medium(recording media) to/from the main image recording means (main image recording device 7) attains or exceeds a predetermined number. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ophthalmic apparatus using a portable backup image recording medium and an ophthalmic image recording system using the same.

  2. Description of the Related Art Conventionally, a fundus camera equipped with a recording medium is known which is connected to a personal computer and records a photographed fundus image for backup on the personal computer side (see, for example, Patent Document 1).

In medical examinations and the like, the place where the fundus image is taken is usually different from the person who makes a diagnosis based on the taken fundus image. That is, conventionally, a system has been adopted in which an ophthalmologic image such as a fundus image is photographed with a 35 mm film or a polaroid film at a medical examination site, and the photographed ophthalmologic image is delivered to a person making a diagnosis.
Japanese Patent Laid-Open No. 2002-32245

  By the way, in recent years, instead of taking ophthalmic images such as fundus images with 35 mm film or polaroid film, ophthalmic images such as fundus images are taken with a photographing means such as a CCD, and the taken ophthalmic images are taken as electronic data. It has also been done.

  However, an unexpected trouble such as damage or loss of the electronic data may occur before the electronic data of the photographed ophthalmic image is passed to a person who makes a diagnosis. On the side of the examination, the evaluation is based on a number called an interpretation rate (ratio at which image contents can be read). For these reasons, it is conventionally necessary to increase the risk management for data protection.

  However, the current fundus camera is actually connected to a personal computer as described above, and the photographed fundus image is recorded for backup on the personal computer side.

  Also, in group examinations, etc., since examinations are often performed in a limited space, it may not be possible to use personal computers or external recording devices that are equipment other than the fundus camera, resulting in inconvenience. It may end up.

  Moreover, even if backup is performed using such a system using a personal computer, setting and operation are complicated, and this has led to a delay in screening in a mass screening with a large number of patients.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an ophthalmic apparatus capable of easily backing up ophthalmic images without using a personal computer or an external recording apparatus, and an ophthalmic image recording system using the ophthalmic apparatus. is there.

  In order to achieve this object, the invention of claim 1 is directed to an imaging unit provided in an ophthalmologic apparatus body for imaging an eye to be examined, a main image recording unit for recording an ophthalmic image from the imaging unit, and the main image recording. An ophthalmologic apparatus having a recording medium detachable from the means, a backup sub-image recording means, and a control circuit, wherein the control circuit attaches or detaches the recording medium to the main image recording means a predetermined number of times. An ophthalmologic apparatus is provided that erases the image data from the sub-image recording means when the above is reached.

  According to a second aspect of the present invention, there is provided an imaging means provided in an ophthalmologic apparatus main body for imaging an eye to be examined, a main image recording means for recording an ophthalmic image from the imaging means, and a detachable from the main image recording means. An ophthalmologic apparatus comprising a recording medium capable of backup, a sub image recording means for backup, and a control circuit, wherein the control circuit records the record confirmation data when the ophthalmic image is recorded from the recording medium to an external image recording apparatus. An image recorded on a recording medium and having the recording confirmation data among a plurality of image data recorded on the recording medium when the number of times of attachment / detachment of the recording medium to / from the main image recording unit exceeds a predetermined number An ophthalmologic apparatus for erasing data from the sub-image recording unit is provided.

  Further, the invention of claim 3 is an imaging means provided in the ophthalmologic apparatus body for imaging the eye to be examined, a main image recording means for recording an ophthalmic image from the imaging means, and a detachable with respect to the main image recording means. An ophthalmologic apparatus having a possible recording medium, a backup sub-image recording means, and a control circuit, and an external image recording provided separately from the ophthalmologic apparatus for recording an ophthalmic image recorded on the recording medium An ophthalmic image recording system comprising an apparatus, wherein the control circuit records recording confirmation data on the recording medium when an ophthalmic image is recorded from the recording medium to the external image recording apparatus, and the recording medium includes the recording medium. Image data having the recording confirmation data among the plurality of image data recorded on the recording medium when the number of times of attachment / detachment to / from the main image recording means becomes a predetermined number or more Characterized in that the ophthalmological image recording system for erasing the image recording means.

  According to this configuration, an ophthalmic image can be easily backed up without using a personal computer or an external recording device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Constitution]
In FIG. 1, an ophthalmic image recording system according to the present invention includes a fundus camera 1 which is an ophthalmologic apparatus (ophthalmologic photographing apparatus) and an external image storage device (external image recording apparatus) 2. As the external image storage device (external image recording device) 2, an image recording / reproducing device (hard disk, magnetic disk device, magneto-optical disk device, etc.) of a hospital ophthalmic personal computer (computer system) PC can be used.

  The fundus camera 1 has a fundus camera body (not shown), a photographing optical system 3 built in the fundus camera body, and an ophthalmic image such as a fundus image is formed by a photographing light beam from the photographing optical system 3. CCD (imaging means) 4 and an arithmetic control unit (arithmetic control circuit) 5 to which an image signal from the CCD 4 is input.

  The fundus camera main body has a slide base that can be moved back and forth and left and right, and an apparatus main body attached to the slide base. The photographing optical system 3 is built in the apparatus main body. The CCD (imaging means) 4 uses a CCD of a television camera that is built in the apparatus main body or attached to the outside of the apparatus main body via a relay lens unit or the like. A well-known structure can be adopted as such a structure.

  The arithmetic control unit 5 is provided with a temporary memory 6 for temporarily storing a fundus still image (ophthalmologic image). A main image recording device (main image recording means) 7 and a backup memory (sub image recording means) 8 are connected to the temporary memory 6 via the arithmetic control unit 5. Further, the above-described external image storage device 2 is connected to the arithmetic control unit 5 via a DAC (Digital analog converter) 9.

  As the main image recording device 7, a magnetic disk device, a magneto-optical disk device, a memory card reader, or the like can be used. In the case of this magnetic disk device, magneto-optical disk device, etc., a removable recording medium (recording medium) such as a magnetic disk, a magneto-optical disk, or a memory card reader can be used for recording and reproducing images.

  Reference numeral 10 denotes a monitor (display device, display means) connected to the arithmetic control circuit 5 via a digital video converter [DAC (Digital analog converter)] 9.

  Further, by pressing the photographing switch S of the fundus camera 1, the signal of the photographing switch S is transmitted to the arithmetic control unit 5, and the arithmetic control unit 5 transmits the signal of the CCD 4 and the xenon flash F of the illumination optical system (not shown). Synchronizing the light emission timing, the xenon flash (xenon lamp) F is emitted.

In addition, if necessary as preparations before imaging, an examination code indicating the location and individual information such as a patient ID, sex, and name are input. This input operation is performed using an input device such as a panel SW, a numeric keypad, a bar code reader, and a magnetic card reader (not shown) in the retinal camera 1, photographing list data prepared in advance, and the like.
[Action]
Next, the operation of the ophthalmic image recording system having such a configuration will be described.

  Next, the fundus of the patient is photographed. First, the aim of the photographing optical system of the fundus camera 1 is set to 3 with the fundus of the eye to be examined, and when this is completed, the photographing switch S of the fundus camera 1 is pressed. Then, the signal of the imaging switch S is transmitted to the arithmetic control unit 5, and the arithmetic control unit 5 synchronizes the signal of the CCD 4 and the light emission timing of the xenon flash F, causes the xenon flash F to emit light, and the fundus of the eye to be examined (the eye to be examined). Illuminate the fundus).

  Thereby, the reflected light from the fundus is guided to the CCD 4 via the photographing optical system 3 and a fundus image is formed on the CCD 4. An image signal is input from the CCD 4 to the arithmetic control unit 5, and fundus image data based on the image signal is stored in the temporary memory 6 as a still image.

  Since the image stored in the temporary memory 6 is output as an analog video signal via the digital video converter 9, it is possible to simultaneously confirm the photographing result on the monitor 10 connected thereto.

 If the result of this confirmation is that the shooting has not failed (blinks, eyelashes, insufficient light quantity, etc.), the shooting switch S is pressed again, and the main image recording device (main image recording means) 7 causes the recording medium (optical disk, magnetic disk, The image information (recording medium such as a memory card) is recorded together with image information (left and right eyes, fixation position information, photographing light quantity, CCD gain, CCD white balance, photographing mode data).

  At this time, a switch for recording may be provided separately from the photographing switch S. In addition, another switch may be provided in the same manner when shooting has failed and deletion is performed.

  Furthermore, in addition to the individual information described above, the captured images are classified and stored by “instrument number” and “imaging date” unique to each fundus camera. At this time, the same image as that recorded on the recording medium by the main image recording device (main image recording means) 7 is recorded in the backup memory 8.

  The backup memory 8 is a memory having a capacity capable of storing, rewriting, and erasing about 1000 images, for example, since it is sufficient to store images during the period from imaging to interpretation at the examination site. A thing is mounted on the fundus camera body (not shown) of the fundus camera 1.

  The memory to be mounted may be a semiconductor memory, but it is desirable that it be detachable from the fundus camera body in consideration of expandability and the like.

  When a problem occurs in the actually captured image, the data is taken out from the backup memory 8, but the backup memory 8 is connected to a personal computer (connected using COM communication, USB, IEEE1394, LAN, etc.). Thus, a necessary image can be taken out by operating the screen of the monitor 10 or from a personal computer, or by taking out the backup memory 8 by using the backup memory 8 as a recording medium.

  Here, an example of operation using the screen of the monitor 10 of FIG. 2 will be introduced. First, use the ↑ or ↓ key in the backup data list to select the item you want to search. After selecting an item, use the selection key to move to the item screen. Here, a case where “list list” is selected will be described.

  When the “list list” in FIG. 2 is selected, the “list list” screen shown in FIG. 3 is displayed. Select the data to be transferred from the “list list” screen in FIG. 3, and a transfer key (not shown). ), Data is transferred to the personal computer PC.

  Such an operation may be performed from the personal computer PC side, or the backup memory 8 may be recognized as a removable disk and data may be taken in from the personal computer PC side.

  The data search when the backup memory 8 is used as a recording medium is the same except that the operation is performed on the personal computer PC.

  Further, the backup data stored in the backup memory 8 is intended to be stored for a certain period as described above, and data that has passed that period can be deleted. However, it is desirable to check double or triple when deleting data so that necessary data is not deleted by mistake.

Further, since it is assumed that the erasing timing varies depending on the environment used, an erasing method suitable for the environment can be selected. Here, as an example, there are three types of erasing methods shown in FIG. These three types of erasing methods can be selected from the items shown in FIG.
・ Erase by list:
In this deletion by list, as shown in FIG. 5, the data to be deleted (the fundus image and character data recorded in association with the fundus image) is selected and deleted from the list selected in the same manner as the backup data list. It is a method to do.
・ Erasing specified date:
This date designation deletion is a function for automatically deleting backup data older than the date designated on the screen as shown in FIG.

  However, if it is actually deleted, a message or the like is again displayed on the screen of the monitor 10 to confirm whether or not it is really deleted.

It is more desirable to be able to see a list of data to be deleted when checking.
・ Erasing data on recording media:
As shown in FIG. 7, the data erasure of the recording medium is performed by detecting the number of times of inserting / removing the backup memory 8 as the recording medium and deleting data exceeding the designated number of times of insertion / removal.

  In this case as well, it is desirable that confirmation can be made in the case of actual deletion. Moreover, it is desirable that the data to be deleted after confirming that the fundus image data photographed by the fundus camera 1 is recorded in the external image storage device (external image recording device) 2.

  In this case, confirmation is made when the fundus image data photographed by the fundus camera 1 is recorded in the external image storage device (external image recording device) 2 via the arithmetic control unit 5 of the fundus camera 1. The main image recording means) 7 is controlled so as to set a recording confirmation flag “1” for confirming that the fundus image data is recorded in the external image storage device (external image recording device) 2. An image recording means) 7 is used to record confirmation data on a removable recording medium (recording medium). The confirmation data is recorded for each of a plurality of fundus image data.

  Then, the arithmetic control unit 5 removes the fundus image data from the removable recording medium (recording medium) of the main image recording device (main image recording unit) 7 and removes the recorded fundus image data. When the number of insertion / removal of the recording medium (recording medium) in the fundus camera body exceeds the designated number of insertions / removals (predetermined number), and it is determined that the recording confirmation flag “1”, which is transfer recording data, is present The fundus image data corresponding to the recording confirmation flag “1” is erased from the backup memory 8.

  Further, in actual backup, since the backup memory 8 has a limited capacity, there is a possibility that the capacity becomes full during shooting. In this case, it is considered that the problem can be solved without any major trouble by automatically or manually executing the avoidance means designated in advance.

  For example, firstly, it is conceivable to display a remaining amount on the monitor 10 or to notify with a warning lamp or a warning sound when the specified number of sheets is cut. Furthermore, in this case, it may be possible to automatically shift to the above-mentioned deletion, but if the user sets, simply delete the oldest backup image automatically and backup the latest image sequentially in that area. A way to do this is also possible.

In order to effectively operate the avoidance function as described above, it is best to provide a function of reducing the data size of the data to be backed up and reduce such troublesome work as much as possible. Here, as an example, two types, a method of changing the compression rate and a method of changing the image size, will be described.
(Compression rate)
・ Change the compression ratio of images to be automatically backed up by specifying the number of backups ・ Specify the compression ratio of images to be backed up arbitrarily.
(Image size)
Further, when the fundus image data is backed up to the backup memory 8 without increasing the compression rate, in order to increase the number of images to be backed up, the image size of FIG. 8 is changed or the fundus image 11 by the mask of FIG. 8 is changed. It is also conceivable to delete only the fundus image 11 shown in FIG. 9 by deleting the mask outer portion 12. When deleting the mask outer portion 12, it is preferable to add the image of the mask outer portion 12 when the image data is extracted from the backup memory 8.

  However, there is a drawback in that it takes time to shoot one image for backup, compared to when backup is not performed. As a solution to this, it is conceivable to back up data in the background.

  For example, at the time of writing to the recording medium using the main image recording device (main image recording means) 7, the backup target [the image recorded in the temporary memory 6 or the main image recording device (main image recording means) is not performed. The backup of the image already saved in the recording medium in step 7) is preferably started in the time (background) until the next subject's eye is photographed after the photographing is completed.

  Further, the fundus camera 1 requires “preparation for photographing” and “sighting” as described above. Even when continuous imaging is performed with a single patient, if the fundus camera 1 is a non-mydriatic fundus camera, the pupil of the patient is mitochondria due to imaging. For this reason, when the fundus camera 1 is a non-mydriatic fundus camera, a certain shooting interval is required. The above problem can be solved by performing backup using the time (background) of the photographing interval.

  Furthermore, when performing backup in the background, it is conceivable to turn off the main power of the fundus camera simultaneously with the last shooting.

  To cope with this situation, a secondary power supply is prepared as a backup power supply separately from the main power supply.If the main power supply is turned on, backup is performed with the main power supply. When it is turned off, data can be protected by backing up with this secondary power supply.

  In addition, since the backup is affected by the operation of the system on the user side, it is assumed that an existing device is used as a backup device.

  In this case, the fundus camera (imaging device) 1 side of the backup device (for example, an external recording device such as a PC, an optical disk recording device, a magnetic disk recording device, or a printer) has a port other than the existing digital data transfer port. Analog video output (composite, Y / C, RGB, etc.) and control signals (parallel, serial control) and control signals (parallel, serial control) can be prepared as analog data transfer ports, and the backup target can be selected in advance. . For this purpose, for example, as shown in FIG. 10, it is preferable to provide an item that enables selection of a backup target.

  In the case of internal backup in FIG. 10, in addition to the main image recording device (main image recording means) 7 described above, a backup image recording device similar to this is provided, and the backup image recording device is selected ( ON) or not (OFF) can be selected.

  Further, the external backup function 1 is assigned a selection of whether to use (ON) or not (OFF) the external recording device (backup device) 13 such as a printer shown in FIG.

  Further, in the external backup function 2, a backup image recording device 14 similar to the main image recording device (main image recording means) 7 is externally attached to the fundus camera 1 as a backup device. Is assigned (ON) or not (OFF).

  Further, when shooting is performed, a control signal is output so as to automatically back up in synchronization with the timing of storing the image on the image recording medium of the main body. In addition to this, a function (background, dedicated switch, etc.) that can arbitrarily set the backup timing may be prepared and a control signal for backup may be output at that timing.

  When the dedicated switch is used, a message as to whether to perform backup is displayed on the screen of the monitor 10 so as not to forget the backup. It is also conceivable to know the state of the device from the backup device, and to control the fundus camera side according to the display of the state (during transfer, writing, power ON / OFF, printing, etc.) and the operation status.

  As the external image storage device 2, for example, a recording device of a host computer in a hospital or the like can be used.

  Alternatively, a plurality of memories such as a CF card may be prepared as removable recording media (recording media), and the plurality of memories may be used properly. In this case, the storage capacities of recording media (recording media) such as CF cards may be the same or different.

  Further, the arithmetic control unit 5 of the fundus camera 1 is configured such that when a recording medium (recording medium) such as a CF card is mounted on a memory mounting unit (not shown) of the fundus camera 1, a recording medium (recording medium) such as a CF card is recorded. Confirm the ID of the medium. If the recording medium (recording medium) such as the CF card has an ID, the arithmetic control unit 5 records the image data as described above on the recording medium (recording medium) such as the CF card. Further, if the recording medium (recording medium) such as the CF card does not have an ID, the arithmetic control unit 5 displays a message such as “Please attach an ID” on the monitor 10 to prompt the input of the ID. The user inputs the ID according to this message. This input may be performed, for example, by providing a touch panel type keyboard (input means) on the monitor 10, or using an input means such as a mouse or a light pen. The input of the ID may be automatically given by the arithmetic control unit 5. In this case, an ID used for a recording medium (recording medium) such as a CF card is recorded in the backup memory 8, and an ID that has not been used is added.

  Further, when an image as backup data is transferred from a recording medium (recording medium) such as a CF card to another external image recording apparatus 2, transfer information is associated with the transferred image and recorded on a recording medium (recording medium such as a CF card). Medium). This recording is performed by the main image recording device 7 or the external image recording device 2.

  On the other hand, when the recording medium (recording medium) such as a CF card in which the transfer information is recorded is mounted on the main image recording device 7, the arithmetic control unit 5 may, for example, “There is backup data. Do you want to delete it?” Is displayed on the monitor 10. At this time, the arithmetic control unit 5 displays information such as “shooting date (how many days to what number), number of sheets, shooting location” on the monitor 10 and displays “YES” and “NO” for confirmation of deletion. Let Although there is a method of displaying a compressed image on the monitor 10 for confirmation of erasure, in this case, it takes time to display. In this respect, it takes no time if only the character information such as the shooting date, the number of images, and the shooting location is displayed.

  In addition, when transfer information (recording confirmation flag “1”) is attached to image data recorded on a recording medium (recording medium) such as a CF card, the recording medium (recording medium) such as a CF card is used as the main image. Each time the recording device 7 is mounted, the image data in the backup memory 8 corresponding to the image data to which the transfer information (recording confirmation flag “1”) is attached is compressed to ½. It is also possible to delete the image data in the backup memory 8 when the time has elapsed.

  Furthermore, after the recording capacity of the backup memory 8 is exhausted and the image data recorded in the backup memory 8 has transfer information, the image data may be erased in order from the oldest one.

  As described above, the ophthalmologic apparatus according to the embodiment of the present invention records the ophthalmologic image from the imaging means (CCD4) and the imaging means (CCD4) provided in the ophthalmologic apparatus body for imaging the eye to be examined. Main image recording means (main image recording apparatus 7), a recording medium (recording medium) detachable from the main image recording means (main image recording apparatus 7), a sub image recording means for backup (backup memory 8), And a control circuit (arithmetic control unit 5). In addition, the control circuit (arithmetic control unit 5), when the number of times of attachment / detachment of the recording medium (recording medium) to the main image recording means (main image recording device 7) becomes equal to or greater than a predetermined number, The sub-image recording means (backup memory 8) is erased.

  According to this configuration, an ophthalmic image can be easily backed up without using a personal computer or an external recording device. Here, the predetermined number of times may be one. In this case, when a recording medium (recording medium) is mounted on the main image recording means (main image recording apparatus 7), a message “Are you sure you want to delete the backup image?” Is displayed, By confirming whether or not the image can be erased, it is possible to prevent the backup image from being erased by mistake.

  In addition, when the predetermined number of times is set to one, a message “Are you sure you want to delete the backup image?” Every time the recording medium (recording medium) is loaded into the main image recording means (main image recording device 7). The image data recorded in the sub image recording means (backup memory 8) can be erased each time the recording medium is mounted on the main image recording means (main image recording device 7) without displaying the image.

  Incidentally, there may be a case where the image data recorded on the recording medium is broken for some reason and the image data cannot be recorded on another external recording device or the like. In this case, every time the recording medium (recording medium) is attached to the main image recording means (main image recording device 7), the message “Are you sure to delete the backup image?” If the image data recorded in the sub image recording means (backup memory 8) is deleted every time the main image recording means (main image recording device 7) is mounted, the image data will be lost.

  Therefore, when it is known in advance that the image data recorded on the recording medium is broken for some reason and the image data cannot be recorded on another external recording device or the like, the recording medium is stored in the main image recording means (main image recording means). It is also possible to provide an erasure release button (erase release switch) or the like for preventing the image data recorded in the sub-image recording means (backup memory 8) from being erased when it is attached to the apparatus 7).

  In this case, after the erasure release button (erase release switch) is pressed, the recording medium is loaded into the main image recording means (main image recording device 7), and recorded in the sub image recording means (backup memory 8). The image data is not erased.

  As a result, it is possible to perform an operation of copying the image data recorded in the sub image recording means (backup memory 8) to a recording medium mounted on the main image recording means (main image recording device 7). In this case, an image data selection switch, a copy operation switch, and the like are provided in the ophthalmic apparatus main body, and necessary image data is selected from the sub image recording means (backup memory 8) using these switches, and the main image recording is performed. It is preferable to copy to a recording medium mounted on the means (main image recording apparatus 7).

  The operation of copying the image data recorded in the sub image recording means (backup memory 8) to the recording medium mounted on the main image recording means (main image recording device 7) is performed by pressing the erasure release button (erase release switch). Thereafter, it may be automatically executed when the recording medium is mounted on the main image recording means (main image recording device 7).

  An ophthalmologic apparatus according to an embodiment of the present invention includes an imaging means (CCD4) provided in an ophthalmologic apparatus main body for imaging an eye to be examined, and a main image recording means for recording an ophthalmic image from the imaging means (CCD4). (Main image recording device 7), a recording medium (recording medium) removable from the main image recording means (main image recording device 7), a backup sub image recording means (backup memory 8), and a control circuit ( An arithmetic control unit 5); Moreover, the control circuit (arithmetic control unit 5) records recording confirmation data on the recording medium (recording medium) when an ophthalmic image is recorded on the external image recording device (2) from the recording medium (recording medium). A plurality of images recorded on the recording medium (recording medium) when the recording medium (recording medium) is attached to or detached from the main image recording means (main image recording apparatus 7) more than a predetermined number. Among the data, the image data having the recording confirmation data is erased from the sub image recording means (backup memory 8).

  According to this configuration, an ophthalmic image can be easily backed up without using a personal computer or an external recording device. In addition, since the image same as the transferred image can be erased from the sub-image recording means (backup memory 8) after the image data is reliably transferred to the other recording means, the image data that has not been transferred to the other recording means is mistakenly displayed. Even if the image data is erased, the same image data as the accidentally erased image data is prevented from being erased from the sub-image recording means (backup memory 8), and the same image data as the image data accidentally erased is deleted. It can be taken out from the sub image recording means (backup memory 8).

  Further, even if the transferred image data is accidentally erased after the image data is reliably transferred to another recording means, the main image recording means (main image recording device) of the recording medium (recording medium) Since the same image as the transferred image is not erased from the sub-image recording means (backup memory 8) unless the number of attachments / detachments to / from 7) exceeds a predetermined number, the predetermined number is a plurality of times (for example, 3 to 5 times), etc. If it is set to, even if the transferred image data is accidentally erased after moving to another recording means, the same image data as the accidentally erased image data is sub-image recording means (backup The probability that it can be taken out from the memory 8) is increased.

  Furthermore, the ophthalmic image recording system according to the embodiment of the present invention includes an imaging unit (CCD4) provided in the ophthalmic apparatus main body for imaging the eye to be examined, and a main image for recording an ophthalmic image from the imaging unit (CCD4). Recording means (main image recording device 7), recording medium (recording medium) removable from the main image recording means (main image recording device 7), backup sub image recording means (backup memory 8), and control An ophthalmologic apparatus having a circuit (arithmetic control unit 5) and an external image recording apparatus 2 provided separately from the ophthalmologic apparatus for recording an ophthalmologic image recorded on the recording medium (recording medium). Yes. Moreover, the control circuit (arithmetic control unit 5) transfers recording confirmation data to the recording medium (recording medium) when the ophthalmic image is transferred and recorded from the recording medium (recording medium) to the external image recording device (2). A plurality of recording media (recording media) recorded on the recording medium (recording medium) when the number of times of attachment / detachment of the recording medium (recording media) to the main image recording means (main image recording device 7) is equal to or greater than a predetermined number. The image data with the recording confirmation data is erased from the sub image recording means (backup memory 8).

  According to this configuration, an ophthalmic image can be easily backed up without using a personal computer or an external recording device. In addition, since the image same as the transferred image can be erased from the sub-image recording means (backup memory 8) after the image data is reliably transferred to the other recording means, the image data that has not been transferred to the other recording means is mistakenly displayed. Even if the image data is erased, the same image data as the accidentally erased image data is prevented from being erased from the sub image recording means (backup memory 8), and the same image data as the accidentally erased image data is deleted. It can be taken out from the sub image recording means (backup memory 8).

  Further, even if the transferred image data is accidentally erased after the image data is reliably transferred to another recording means, the main image recording means (main image recording device) of the recording medium (recording medium) Since the same image as the transferred image is not erased from the sub-image recording means (backup memory 8) unless the number of attachments / detachments to / from 7) exceeds a predetermined number, the predetermined number is a plurality of times (for example, 3 to 5 times), etc. If it is set to, even if the transferred image data is accidentally erased after moving to another recording means, the same image data as the accidentally erased image data is sub-image recording means (backup The probability that it can be taken out from the memory 8) is increased.

1 is a circuit diagram of an ophthalmologic apparatus and an ophthalmic image recording system according to the present invention. It is explanatory drawing which shows an example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows an example of a fundus image. FIG. 9 is an explanatory diagram of a fundus image excluding the mask image of FIG. 8. It is explanatory drawing which shows the other example of the screen of the monitor of FIG. It is explanatory drawing which shows the other example of the screen of the monitor of FIG.

Explanation of symbols

1 ... Fundus camera (ophthalmic device)
2 ... External image recording device 4 ... CCD (photographing means)
5. Calculation control unit (control circuit)
7. Main image recording device (main image recording means)
8 ... Backup memory (sub-image recording means)

Claims (3)

Imaging means provided in the ophthalmologic apparatus main body for imaging the eye to be examined, main image recording means for recording an ophthalmic image from the imaging means, a recording medium removable from the main image recording means, a backup sub An ophthalmic apparatus having an image recording means and a control circuit,
The ophthalmologic apparatus, wherein the control circuit erases the image data from the sub-image recording means when the number of times of attachment / detachment of the recording medium to / from the main image recording means becomes a predetermined number or more. Imaging means provided in the ophthalmologic apparatus main body for imaging the eye to be examined, main image recording means for recording an ophthalmic image from the imaging means, a recording medium removable from the main image recording means, a backup sub An ophthalmic apparatus having an image recording means and a control circuit,
The control circuit records recording confirmation data on the recording medium when an ophthalmic image is recorded on the external image recording apparatus from the recording medium, and the number of times the recording medium is attached to and detached from the main image recording unit is a predetermined number of times or more. The ophthalmic apparatus is characterized in that the image data having the recording confirmation data among the plurality of image data recorded on the recording medium is erased from the sub image recording means. Imaging means provided in the ophthalmologic apparatus main body for imaging the eye to be examined, main image recording means for recording an ophthalmic image from the imaging means, a recording medium removable from the main image recording means, a backup sub An ophthalmic apparatus having an image recording means and a control circuit;
An ophthalmologic image recording system comprising an external image recording apparatus provided separately from the ophthalmologic apparatus for recording an ophthalmologic image recorded on the recording medium,
The control circuit records recording confirmation data on the recording medium when an ophthalmic image is recorded on the external image recording apparatus from the recording medium, and the number of times the recording medium is attached to and detached from the main image recording unit is a predetermined number of times. An ophthalmic image recording system, wherein the image data having the recording confirmation data among the plurality of image data recorded on the recording medium is erased from the sub image recording means.

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