Intraocular observation system

Abstract

To provide an intraocular observation system which can easily determine whether or not an intraocular endoscope assuming the plural times of use can be used.SOLUTION: An intraocular observation system 1 comprises: an intraocular endoscope 10; a tag holder 20 which includes an RFID tag 21 that stores relevant information of the intraocular endoscope 10 and can be read out by wireless communication and which is connected to the intraocular endoscope 10 via a connection cable 22; and a control device 30. The control device 30 comprises: a communication unit 34 which performs wireless communication with the RFID tag 21; a calculation unit 31 which determines whether the usable number of times of the intraocular endoscope 10 is equal to or greater than 1 or is 0 with reference to the relevant information acquired from the RFID tag 21 via the communication unit 34; and an image signal generation unit 33 which generates an image signal indicating an observation image obtained by the intraocular endoscope 10 when it is determined that the usable number of times is equal to or greater than 1, and generates an image signal indicating use impossibility of the intraocular endoscope 10 when it is determined that the usable number of times is 0.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an intraocular observation system. [Background technology]

[0002] An endoscope has an insertion section that houses an observation optical system including an objective lens and an optical fiber bundle, and a base section that supports the insertion section and is held by an operator such as a surgeon. The light of the observation image that enters the observation optical system is received by an image fiber and image sensor built into the endoscope and converted into an image signal. A controller connected to the endoscope converts the image signal into a video signal that can be displayed on a monitor and outputs it to the monitor.

[0003] As the number and types of endoscopes increase, the management burden tends to increase. The endoscope disclosed in Patent Document 1 has an RFID (Radio Frequency Identification) tag embedded in the endoscope connector that connects to the processor. The RFID tag stores the endoscope's attributes, machine identification number, cleaning and disinfection history, etc. This information is read by the processor via wireless communication and then transmitted to a database that manages the endoscopes. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-225725 Summary of the Invention [Problem to be solved by the invention]

[0005] Intraocular endoscopes used in ophthalmic surgery have traditionally been discarded after each surgery. One reason for this is that the insertion tube of an intraocular endoscope, which is inserted into the eyeball, is extremely thin and long—approximately 0.4 mm in diameter and several centimeters in length. Compared to other types of endoscopes, this makes it more susceptible to deformation and wear due to surgical manipulation and subsequent sterilization and cleaning. While some degree of deformation and wear is unavoidable, improvements in the quality and functionality of components are expected to enable intraocular endoscopes to be reused multiple times within acceptable performance limits. Reusable intraocular endoscopes can contribute to reducing surgical costs and medical waste. Furthermore, if an intraocular endoscope system could manage multiple uses, it could also contribute to reducing the management workload of medical professionals.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide an intraocular observation system that makes it easy to determine whether an intraocular endoscope designed for multiple uses can be used. [Means for solving the problem]

[0007] An intraocular observation system according to one aspect of the present invention comprises an intraocular endoscope, a tag holder connected to the intraocular endoscope via a connecting cord, the tag holder including an RFID tag that stores relevant information about the intraocular endoscope and can be read by wireless communication, and a control device, the control device including a communication unit that performs wireless communication with the RFID tag, a calculation unit that acquires the relevant information from the RFID tag via the communication unit and determines whether the number of times the intraocular endoscope can be used is 1 or more or 0 by referring to the acquired relevant information, and an image signal generation unit that generates an image signal that shows an observation image obtained by the intraocular endoscope when it is determined that the number of times it can be used is 1 or more, and generates an image signal that shows that the intraocular endoscope cannot be used when it is determined that the number of times it can be used is 0.

[0008] When the calculation unit determines that the number of times that the RFID tag can be used is 1 or more and that the RFID tag has been in a state in which it can communicate with the communication unit for a predetermined continuous period of time or more, the calculation unit may subtract 1 from the number of times that the RFID tag can be used and write the value to the RFID tag via the communication unit.

[0009] The RFID tag may store the number of times it can be used as the related information.

[0010] The control device may further include a storage unit. In this case, the RFID tag may store identification information of the intraocular endoscope as the related information, the storage unit may store the identification information of the intraocular endoscope and the number of times it can be used associated with the identification information, and the calculation unit may refer to the number of times it can be used stored in the storage unit as a reference to the related information.

[0011] When the calculation unit determines that the number of times that the RFID tag can be used is 1 or more and that the RFID tag has been in a state in which it can communicate with the communication unit for a predetermined continuous period of time or more, the calculation unit may subtract 1 from the number of times that the RFID tag can be used that is stored in the memory unit.

[0012] The intraocular observation system may further include a display unit that displays the number of times the device can be used. The intraocular observation system may further include an alarm unit that issues an alarm sound when the number of times the device can be used is 0. The tag holder may be formed as a plug that is insertable into a socket provided in the control device so as to be lockable. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide an intraocular observation system that can easily determine whether an intraocular endoscope designed for multiple uses is usable. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a diagram showing an example of the configuration of an intraocular observation system according to an embodiment of the present invention. [Figure 2]1 is a diagram showing an example of the configuration of an intraocular endoscope according to an embodiment of the present invention. [Figure 3] 3A and 3B are cross-sectional views of an insertion portion of an intraocular endoscope according to one embodiment of the present invention, where FIG. 3A is a cross-sectional view taken along line IIIA-IIIA in FIG. 2, and FIG. 3B is a cross-sectional view taken along line IIIB-IIIB in FIG. [Figure 4] FIG. 1 is a perspective view showing an example of a tag holder according to the present embodiment. [Figure 5] 10 is a flowchart showing the operation of the intraocular observation system according to the present embodiment. [Figure 6] FIG. 10 is a diagram showing an example of an image indicating that use is prohibited. DETAILED DESCRIPTION OF THE INVENTION

[0015] An embodiment of the present invention will be described below with reference to the drawings. The same functions and configurations are denoted by the same or similar reference numerals, and their description will be omitted as appropriate. In the following description, the term "operator" refers to a person who uses the intraocular observation system according to this embodiment, such as a surgeon, an assistant, or other support person.

[0016] The intraocular observation system according to this embodiment is a device that displays an observation image obtained by an intraocular endoscope on a monitor. The intraocular endoscope according to this embodiment is also reusable after being cleaned, disinfected, and otherwise treated. However, each intraocular endoscope has a predetermined number of times it can be used. Therefore, if the intraocular endoscope is used more than this number of times, the intraocular observation system will not display the observation image on the monitor and will notify the operator that the number of times has been exceeded. This operation allows the operator to easily determine whether an intraocular endoscope designed for multiple uses is usable.

[0017] Fig. 1 is a diagram showing an example of the configuration of an intraocular observation system 1 according to this embodiment. As shown in Fig. 1, the intraocular observation system 1 includes an intraocular endoscope 10, a tag holder 20 including an RFID tag 21, and a control device 30.

[0018] First, the intraocular endoscope 10 will be described. Fig. 2 is a diagram showing an example of the configuration of the intraocular endoscope 10. Fig. 3 is a cross-sectional view of the insertion portion 11 of the intraocular endoscope 10, Fig. 3(a) is a cross-sectional view taken along IIIA-IIIA in Fig. 2, and Fig. 3(b) is a cross-sectional view taken along IIIB-IIIB in Fig. 2.

[0019] The intraocular endoscope 10 is an endoscope that is inserted into a human eyeball to observe fundus tissues such as the retina. As shown in Fig. 2, the intraocular endoscope 10 includes an insertion section 11, a base section 12, a cord (cable) 13, and two plugs 14A and 14B.

[0020] The insertion section 11 has a tubular shape to be inserted into the eyeball, and includes an outer tube (skin) 15 that defines its outer shape. The outer tube 15 is a hollow tubular member that houses an observation optical system 40 (described below) and other components inside. The outer diameter of the outer tube 15 is, for example, 0.4 mm to 0.9 mm (i.e., 27 G to 20 G). The outer tube 15 according to this embodiment is made of a metal such as stainless steel or titanium. However, the material of the outer tube 15 may also be hard plastic, metal, or a composite material thereof.

[0021] As shown in Figures 3(a) and 3(b), the intraocular endoscope 10 includes an observation optical system 40 housed inside the outer casing 15. As shown in Figure 3(b), the observation optical system 40 includes an objective lens 41 and an optical fiber bundle 42. The objective lens 41 is attached to the distal end 11a of the insertion section 11, and focuses reflected light from the observation target onto the optical fiber bundle 42, while also functioning as an observation window. The objective lens 41 is, for example, at least one GRIN (G Radiant Index Lens) lens, spherical lens, or aspherical lens.

[0022] The optical fiber bundle 42 of the observation optical system 40 is composed of, for example, several thousand to several tens of thousands of optical fibers 43 and has a substantially circular cross section. The optical fiber bundle 42 extends from the tip 11a to the plug 14A via the cord 13 and transmits light collected by the objective lens 41 to the control device 30.

[0023] The intraocular endoscope 10 may include an illumination optical system 45 housed inside the outer tube 15. Like the observation optical system 40, the illumination optical system 45 is also composed of an optical fiber bundle 46 including a large number of optical fibers 47. The optical fiber bundle 46 of the illumination optical system 45 has a sector-shaped cross section with a central notch cut out, and is provided along the inner circumferential wall of the outer tube 15, between the inner circumferential wall and the optical fiber bundle 42 of the observation optical system 40. The observation optical system 40 extends from the distal end 11a via the cord 13 to the plug 14B, and transmits light emitted from the light source 38 to the distal end 11a, illuminating the observation area. The light source 38 may be built into the control device 30 (see FIG. 1), for example, or may be provided as a device separate from the control device 30.

[0024] The base 12 is a rod-shaped member that is thicker than the insertion portion 11, and supports the insertion portion 11 while functioning as a gripping portion that is gripped by the surgeon. The length of the base 12 along the extension direction is, for example, 40 mm to 60 mm. The diameter of the base 12 is, for example, 5 mm to 15 mm. The base 12 according to this embodiment is made of hard plastic. However, the material of the base 12 may also be a metal such as stainless steel, or a composite material of such a metal and hard plastic.

[0025] The base 12 accommodates the optical fiber bundle 42 of the observation optical system 40 and the optical fiber bundle 46 of the illumination optical system 45, and leads these to a cord 13 connected to the base 12. The cord 13 branches into a cord 13a that accommodates the optical fiber bundle 42 of the observation optical system 40 and a cord 13b that accommodates the optical fiber bundle 46 of the illumination optical system 45.

[0026] A plug 14A is attached to the end of the cord 13a, and the plug 14A is inserted into a socket (not shown) provided in the control device 30. This optical fiber bundle 42 is optically coupled to the optical path to an image sensor 35, such as a CCD (Charge Coupled Device), provided in the control device 30. Similarly, a plug 14B is attached to the end of the cord 13b, and the plug 14B is inserted into a socket (not shown) provided in the control device 30. This optical fiber bundle 46 is optically coupled to the optical path from a light source 38 provided in the control device 30.

[0027] The intraocular endoscope 10 can be reused after being cleaned, disinfected, etc. However, the number of times it can be used is determined in advance in consideration of durability, etc. This number is the number of times it can be used N, which will be described later, and is stored in the RFID tag 21, for example.

[0028] Next, the tag holder 20 will be described. 1, the tag holder 20 includes an RFID tag 21 that can be read by wireless communication with a communication unit 34 (described later) of the control device 30. In other words, the tag holder 20 accommodates (holds) the RFID tag 21 therein.

[0029] The tag holder 20 is connected to the intraocular endoscope 10 via a connecting cord 22. The connecting cord 22 connects, for example, the gripping portion 23 of the tag holder 20 to the plug 14A of the intraocular endoscope 10. The connecting cord 22 is a flexible single wire, braided wire, or twisted wire. The connecting cord 22 may be made of any of metal, resin, and natural materials. The connecting cord 22 may be formed linearly, or may be formed spirally to improve flexibility, or may have other shapes. By connecting to the intraocular endoscope 10 via the connecting cord 22, it is possible to avoid an increase in the size of the plug 14A, etc., compared to when the RFID tag 21 is embedded in the plug 14A, etc.

[0030] 4 is a perspective view showing an example of tag holder 20 according to this embodiment. As shown in this figure, tag holder 20 is formed as a cylindrical plug that is inserted into socket 39 of control device 30. However, the shape of tag holder 20 is arbitrary as long as it has a shape that allows it to be temporarily held in control device 30. For example, tag holder 20 may be shaped like a rectangular card having a predetermined thickness. The control device 30 side is also not limited to the socket 39 described above, and may have a mechanism for temporarily holding tag holder 20 depending on the shape of tag holder 20.

[0031] The tag holder 20 is inserted into the socket 39 so as to be lockable. That is, after the tag holder 20 is inserted into the socket 39, it is temporarily locked by a locking mechanism 24 provided on the tag holder 20 and the socket 39. This prevents the tag holder 20 from unintentionally coming off the socket 39. The locking mechanism 24 is composed of, for example, a groove 25 formed in the tag holder 20 and a ball plunger 26 provided on the peripheral wall of the socket 39. When the tag holder 20 is inserted to a predetermined position in the socket 39, part of the ball of the ball plunger 26 fits into the groove 25. This prevents the tag holder 20 from falling off the socket 39.

[0032] The RFID tag 21 is an electronic tag of a well-known configuration that includes an antenna, a communication unit that uses the antenna to communicate with a communication unit 34 (described later) of the control device 30, a memory unit, and a control unit that controls these. The RFID tag 21 is a so-called passive tag, and stores information related to the above-mentioned intraocular endoscope 10. The RFID tag 21 may be a so-called active tag, but from the perspective of making the tag holder 20 smaller and lighter, a passive tag that does not require a battery is advantageous.

[0033] The RFID tag 21 is housed in a position where it can communicate wirelessly with the communication unit 34 when the tag holder 20 is properly inserted into the socket 39. Such a position is, for example, the tip end of the tag holder 20 as shown in FIG. 4. The position of the RFID tag 21 within the tag holder 20 can be set arbitrarily as long as it can communicate with the communication unit 34. However, in either case, the surrounding area of ​​the RFID tag 21 is made of a non-magnetic material so that wireless communication can be performed between the tag holder 20 and the communication unit 34.

[0034] The RFID tag 21 stores the number of times N that the intraocular endoscope 10 can be used as related information of the intraocular endoscope 10. The number of times N that the intraocular endoscope 10 can be used is the current number of times (i.e., the remaining number) that the intraocular endoscope 10 can be used, and its initial value (i.e., maximum value) is set in advance. The related information is sent to the calculation unit 31 of the control device 30 via the communication unit 34.

[0035] Next, the control device 30 will be described. 1, the control device 30 includes a calculation unit 31, a storage unit 32, an image signal generation unit 33, and a communication unit 34. The calculation unit 31 includes a calculation circuit including a CPU, and reads programs stored in the storage unit 32 to execute various processes and control each circuit. The storage unit 32 is configured with memories such as RAM and ROM, and stores at least the programs executed by the calculation unit 31. The calculation unit 31 also includes a timer circuit that measures time. The timer circuit may be constructed using a timer element, or may be constructed virtually by executing software.

[0036] The image signal generating unit 33 includes an image signal processing circuit including an analog front end (AFE) and a digital signal processor (DSP), and converts the detection signal of the observation image output by the image sensor 35 into an image signal of the observation image. The image signal generating unit 33 can also receive image data stored in the storage unit 32 via the calculation unit 31 and generate an image signal of an image based on the image data. The image signal generating unit 33 also includes an interface circuit that outputs an image signal representing the observation image to the monitor 50.

[0037] The communication unit 34 is a so-called RFID reader / writer, and includes an antenna (or coil) and a transmitting / receiving circuit, and performs wireless communication with the RFID tag 21. This wireless communication is near field communication (NFC) defined by standards such as ISO / IEC or JIS.

[0038] The control device 30 may be equipped with a count display unit (display unit) 36. The count display unit 36 ​​is a display circuit configured with a 7-segment LED or a liquid crystal panel, etc. The count display unit 36 ​​displays the number of times N that the intraocular endoscope 10 can be used based on the control of the calculation unit 31. The number of times N that the intraocular endoscope 10 can be used may be displayed on the monitor 50 by an image signal generated by the image signal generation unit 33. In this case, the number of times display unit 36 ​​may be omitted. In either case, the remaining number of times that the intraocular endoscope 10 can be used can be intuitively understood.

[0039] The control device 30 may include an alarm unit 37. The alarm unit 37 is a sound wave generating circuit such as a speaker or buzzer. When the usable number of times N is zero, the alarm unit 37 generates an alarm sound under the control of the calculation unit 31. A warning using sound is more likely to attract the operator's attention than a display of the usable number of times N. Therefore, it is possible to strongly urge the operator to replace the intraocular endoscope 10.

[0040] Next, the operation of the intraocular observation system 1 will be described. 5 is a flowchart showing the operation of the intraocular observation system 1. In the initial state of the intraocular observation system 1, the plug 14A of the observation optical system and the plug 14B of the illumination optical system of the intraocular endoscope 10 are already inserted into the sockets of the control device 30. On the other hand, the tag holder 20 is not inserted into the socket 39.

[0041] In the above-described state, the calculation unit 31 first attempts to detect the RFID tag 21 by transmitting a data read command or the like to the RFID tag 21 via the communication unit 34 (step S11). While communication is not established (NO in step S11), this transmission continues in parallel with the processing of step S12 described below.

[0042] In the initial state, the tag holder 20 is not inserted into the socket 39, and the communication unit 34 has not yet established communication with the RFID tag 21. While this initial state continues, the image signal generation unit 33 does not start generating an image signal (step S12). Alternatively, the image signal generation unit 33 may use image data stored in advance in the storage unit 32 to display on the monitor 50 an image indicating that the tag holder 20 is not attached.

[0043] When the tag holder 20 is inserted to a predetermined position in the socket 39, communication (e.g., reading) is established between the communication unit 34 and the RFID tag 21. When this communication is established, the calculation unit 31 determines that the RFID tag 21 has been detected (YES in step S11).

[0044] After the RFID tag 21 is detected, the calculation unit 31 reads out the usable number N of the intraocular endoscope 10 from the RFID tag 21 via the communication unit 34 to acquire information related to the intraocular endoscope 10 (step S13). The image signal generation unit 33 outputs an image signal indicating the usable number N to the monitor 50 (step S14). If the number display unit 36 ​​is provided, the number display unit 36 ​​displays the usable number N.

[0045] The value displayed on the monitor 50 or the count display unit 36 ​​is the remaining number of uses of the intraocular endoscope 10, including the current surgery. Because this value is not the cumulative number of uses, the operator can immediately understand how many times the intraocular endoscope 10 currently being used can be used.

[0046] Next, the calculation unit 31 references the usable count N read from the RFID tag 21 as the related information, and determines whether the usable count N is 1 or greater or 0 (step S15). If it is determined that the usable count N is 1 or greater (YES in step S15), the calculation unit 31 determines whether the RFID tag 21 has been in a state in which it can communicate with the communication unit 34 for a predetermined continuous time or longer (step S16). In other words, it determines whether the tag holder 20 has been inserted to a predetermined position in the socket 39 for a predetermined time or longer. This determination can be made, for example, by determining whether the continuous communication time between the communication unit 34 and the RFID tag 21 has exceeded a predetermined time. The predetermined time can be set arbitrarily, for example, about 30 seconds, taking into consideration the time it takes to notice an incorrect insertion of the tag holder 20.

[0047] When it is determined that the RFID tag 21 has not been placed in a state in which it can communicate with the communication unit 34 for a predetermined continuous period of time or longer (NO in step S16), the calculation unit 31 checks whether the communication unit 34 is still able to communicate with the RFID tag 21. That is, it determines whether the RFID tag 21 has still been detected (step S17).

[0048] If the RFID tag 21 is still detected (YES in step S17), the process returns to step S16. On the other hand, if the RFID tag 21 is not detected (NO in step S17), the calculation unit 31 determines that the tag holder 20 has come off the socket 39 or has shifted from a predetermined position within the socket 39, and ends the series of processes. This prevents the subtraction of the usable count N (step S18) from being performed due to accidental insertion, removal, or positional shift of the tag holder 20.

[0049] When it is determined that the RFID tag 21 has been in a state in which it can communicate with the communication unit 34 for a predetermined continuous time or longer (YES in step S16), the calculation unit 31 subtracts 1 from the usable number of times N (step S18) and writes the value (=N-1) to the RFID tag 21 via the communication unit 34 (step S19). That is, the usable number of times N stored in the RFID tag 21 is updated to a value obtained by subtracting 1 from the usable number of times N.

[0050] After updating the usable number of times N, the image signal generating unit 33 outputs an image signal representing the observation image to the monitor 50 (step S20). This allows the operator to visually recognize the observation image displayed on the monitor 50.

[0051] Returning to step S15, if it is determined that the usable count N is not 1 or greater, i.e., that the usable count N is 0 (NO in step S15), the image signal generator 33 generates an image signal indicating that the intraocular endoscope 10 is unusable and outputs it to the monitor 50 (step S21). FIG. 6 is a diagram showing an example of an image displayed on the monitor 50 based on the image signal indicating unusable. This allows the operator to recognize that the intraocular endoscope 10 currently connected to the control device 30 has exceeded its usable count and is unusable. In other words, this embodiment provides an intraocular observation system that can easily determine whether an intraocular endoscope intended for multiple uses is usable. Furthermore, the operator can be prompted to replace an intraocular endoscope 10 that has been determined to be unusable.

[0052] The monitor 50 is originally intended to display an observation image. Therefore, the operator (especially the surgeon) often focuses on the monitor 50. Since the monitor 50 displays an image indicating that the intraocular endoscope 10 is unusable, the operator can immediately understand that the problem is not a malfunction of the intraocular observation system 1, but that the intraocular endoscope 10 is unusable.

[0053] If the alarm unit 37 is provided, an alarm sound may be output from the alarm unit 37 together with the image display in step S21 (step S22). Even if the operator overlooks the usable number of times N displayed on the number of times display unit 36 ​​or the monitor 50, or if the operator is in a location where the number of times display unit 36 ​​or the monitor 50 cannot be seen, the operator can immediately understand that the intraocular endoscope 10 cannot be used by the notification using sound.

[0054] The information related to the intraocular endoscope 10 stored in the RFID tag 21 and referenced by the calculation unit 31 may be information for specifying the number of times N that the intraocular endoscope 10 can be used. Such information is, for example, unique identification information given to the intraocular endoscope 10. Examples of the identification information include unique letters, numbers, symbols, or a combination of at least two of these that are given to the intraocular endoscope 10. In other words, this identification information functions as indirect information for specifying the number of times N that the intraocular endoscope 10 can be used, in other words, for referencing the number of times N that the intraocular endoscope 10 can be used.

[0055] When the RFID tag 21 stores the identification information of the intraocular endoscope 10 as related information, the storage unit 32 of the control device 30 stores the usable number N associated with this identification information. In this case, in step S13, the calculation unit 31 reads the identification information of the intraocular endoscope 10 from the RFID tag 21 via the communication unit 34 instead of the usable number N of the intraocular endoscope 10 (step S13'). In addition, in step S19, the calculation unit 31 writes a value obtained by subtracting 1 from the usable number N (=N-1) into the storage unit 32 (step S19'). That is, in step S19', the usable number N stored in the storage unit 32 is updated to a value obtained by subtracting 1 from the usable number N.

[0056] The present disclosure is not limited to the above-described embodiments, but is defined by the claims, and includes all modifications within the meaning and scope equivalent to the claims. [Explanation of symbols]

[0057] 1...intraocular observation system, 10...intraocular endoscope, 11...insertion section, 11a...tip section, 12...base section, 13...cord, 14A...plug, 14B...plug, 15...outer tube, 20...tag holder, 21...RFID tag, 22...connecting cord, 23...gripping section, 24...locking mechanism, 25...groove, 26...ball plunger, 30...control device, 31...computing section, 32...storage section, 33...image signal generating section, 34...communication section, 35...image sensor, 36...count display section, 37...alarm section, 38...light source, 39...socket, 40...observation optical system, 41...objective lens, 42...optical fiber bundle, 43...optical fiber, 45...illumination optical system, 46...optical fiber bundle, 47...optical fiber, 50...monitor

Claims

1. An intraocular endoscope, a tag holder including an RFID tag that stores information related to the intraocular endoscope and that can be read by wireless communication, the tag holder being connected to the intraocular endoscope via a connecting cord; Control device and Equipped with The control device a communication unit that wirelessly communicates with the RFID tag; a calculation unit that acquires the related information from the RFID tag via the communication unit and determines whether the number of times the intraocular endoscope can be used is 1 or more or 0 by referring to the acquired related information; an image signal generating unit that generates an image signal representing an observation image obtained by the intraocular endoscope when it is determined that the number of times the intraocular endoscope can be used is 1 or more, and generates an image signal representing that the intraocular endoscope cannot be used when it is determined that the number of times the intraocular endoscope can be used is 0; An intraocular observation system comprising:

2. When the calculation unit determines that the usable number of times is 1 or more and that the RFID tag has been placed in a state in which it can communicate with the communication unit for a predetermined continuous period of time or more, the calculation unit subtracts 1 from the usable number of times and writes the value to the RFID tag via the communication unit. The intraocular observation system according to claim 1 .

3. The RFID tag stores the number of times it can be used as the related information. The intraocular observation system according to claim 1 .

4. The RFID tag stores the number of times it can be used as the related information. The intraocular observation system according to claim 2 .

5. The control device further includes a storage unit, the RFID tag stores identification information of the intraocular endoscope as the related information; the storage unit stores the identification information of the intraocular endoscope and the number of times the intraocular endoscope can be used that is associated with the identification information; The calculation unit refers to the number of times the device can be used stored in the storage unit as the reference to the related information. The intraocular observation system according to claim 1 .

6. When the calculation unit determines that the usable number of times is 1 or more and that the RFID tag has been placed in a state in which it can communicate with the communication unit for a predetermined continuous period of time or more, the calculation unit subtracts 1 from the usable number of times stored in the storage unit. The intraocular observation system according to claim 5 .

7. The device further includes a display unit that displays the number of times the device can be used. The intraocular observation system according to claim 1 .

8. The device further includes an alarm unit that issues an alarm sound when the number of times the device can be used is 0. The intraocular observation system according to claim 1 .

9. The tag holder is formed as a plug that is inserted into a socket provided in the control device so as to be able to be locked. An intraocular observation system according to any one of claims 1 to 8.

Images