Endoscope sterilization device and endoscope sterilization system

Abstract

Provided are: a sterilization device for an endoscope; and a sterilization system for an endoscope. The device and system are capable of obtaining a high sterilization effect for an insertion part of an endoscope.　This sterilization device (50) for an endoscope irradiates a tip potion (12d) of an endoscope (12) with light for sterilization. The sterilization device (50) for an endoscope is provided with: a housing (51) which is in the shape of a bottomed cylinder having an opening section (51A), a circumferential surface section (51B), and a bottom surface section (51C), and into which the tip portion (12d) can be inserted through the opening section (51A); and light sources (52, 53) that are for sterilization and that are provided in the housing (51) to irradiate the tip portion (12d) inserted in the housing (51) with light for sterilization.

Description

[Technical Field]

[0001] The present invention relates to an endoscope sterilization device and an endoscope sterilization system. [Background technology]

[0002] In the medical field, endoscopic examinations are performed by inserting the insertion portion of an endoscope into a subject to perform observation. It is known that endoscopes are hung on hangers when in a standby state, such as before observation. Furthermore, hangers that hold endoscopes are often provided on endoscope carts that carry and transport the endoscope, a processor device, a light source device, and the like.

[0003] Patent Document 1 describes an endoscope cart equipped with a hanger for holding an endoscope. This endoscope cart is equipped with a hanger cover that covers the hanger and a heating means for raising the temperature around the endoscope held on the hanger, thereby aiming to keep the endoscope clean. Furthermore, the endoscope cart described in Patent Document 1 has a germicidal lamp installed inside the hanger cover to suppress the growth of bacteria inside the hanger cover.

[0004] In the endoscope cart described in Patent Document 2, a sanitary case is attached to the side of the endoscope cart body. Inside the sanitary case, a hanger, a support for supporting the hanger, and a germicidal lamp are provided. The support has an irradiation window, and the germicidal lamp is attached inside. When the germicidal lamp is turned on, ultraviolet light is irradiated through the irradiation window onto the endoscope hanging from the hanger, sterilizing the endoscope. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 5-95888 [Patent Document 2] Japanese Patent Application Publication No. 10-262902 Summary of the Invention [Problem to be solved by the invention]

[0006] In the medical field, there is a demand for further preventive measures against infectious diseases, and because the insertion portion of an endoscope is inserted into a subject for observation, it is important to sterilize bacteria such as viruses, and it is particularly required to sterilize immediately before entering the subject. However, even if a germicidal lamp is provided inside the hanger cover as in the endoscope cart described in Patent Document 1, it is the hanger cover that is primarily sterilized, and sterilization of the insertion portion of the endoscope is not taken into consideration.

[0007] On the other hand, in the endoscope cart described in Patent Document 2, a germicidal lamp is attached inside the support that supports the hanger, but the position and amount of ultraviolet light that hits the endoscope varies depending on how the endoscope is hung from the hanger, so a high germicidal effect cannot be achieved on the insertion part of the endoscope. In other words, the endoscope carts described in Patent Documents 1 and 2 do not take into consideration sterilizing the insertion part immediately before entering the body of the patient.

[0008] An object of the present invention is to provide an endoscope sterilization device and an endoscope sterilization system that can achieve a high sterilization effect on the insertion portion of an endoscope. [Means for solving the problem]

[0009] The endoscope sterilization device of the present invention is an endoscope sterilization device that irradiates the insertion portion of an endoscope with sterilizing light, and includes a housing portion and a sterilizing light source. The housing portion is a cylindrical portion with a bottom, having an opening, a peripheral portion, and a bottom portion, and at least a part of the insertion portion can be inserted through the opening. The sterilizing light source is provided in the housing portion and irradiates the insertion portion inserted into the housing portion with sterilizing light.

[0010] The sterilizing light source is preferably provided on the bottom surface or the peripheral surface. It is preferable that a reflective material is provided on at least one of the bottom surface and the peripheral surface.

[0011] Light emitted by a sterilizing light source teeth The ultraviolet light preferably has a central wavelength of 222 nm. The sterilizing light source is preferably an excimer lamp or an LED.

[0012] The container preferably includes a lid member that forms at least a portion of the bottom or peripheral portion, and the lid member is movable between a closed position that covers the inside of the container and an open position that exposes the inside of the container. The lid member is preferably detachable from the container.

[0013] It is preferable to provide an insertion length detector that detects the length of insertion of the insertion portion into the accommodation portion, and it is preferable to provide an insertion portion holder that holds the insertion portion inserted into the accommodation portion.

[0014] The endoscope sterilization system of the present invention is an endoscope sterilization system that irradiates the insertion portion of an endoscope with sterilizing light, and is equipped with an endoscope holding device provided with a hanger that holds the operating portion of the endoscope connected to the insertion portion, and the above-mentioned endoscope sterilization device.

[0015] The endoscope holding device is preferably an endoscope stand or an endoscope cart.

[0016] The opening preferably opens in a direction intersecting the hanging direction of the insertion part that hangs down due to its own weight when the operation part is held by the hanger.

[0017] It is preferable that the endoscope sterilizer and the endoscope holding device are provided with a detachable mechanism that allows them to be detached from each other.

[0018] The endoscope sterilization system of the present invention is an endoscope sterilization system that irradiates the insertion portion of an endoscope with sterilizing light, and includes an endoscope holding device and an endoscope sterilization device. The endoscope holding device is provided with a hanger that holds the operation portion of the endoscope connected to the insertion portion. The endoscope sterilization device is composed of at least a peripheral surface that faces the outer peripheral surface of the insertion portion that hangs down due to its own weight when the operation portion is held on the hanger, and includes a trough-shaped storage section that houses the insertion portion, and a sterilization light source that is provided in the storage section and irradiates sterilizing light to the insertion portion housed in the storage section.

[0019] The endoscope sterilization device of the present invention is an endoscope sterilization device that irradiates the insertion portion of an endoscope with sterilizing light, and includes an insertion portion and a sterilizing light source. The insertion portion has a peripheral surface that faces the insertion portion and can be inserted by the insertion portion. The sterilizing light source irradiates the insertion portion inserted into the insertion portion with sterilizing light.

[0020] The endoscope sterilization system of the present invention is an endoscope sterilization system that irradiates the insertion portion of an endoscope with sterilizing light, and includes an endoscope holding device, the endoscope sterilization device described above, and a sliding mechanism. The endoscope holding device is provided with a hanger that holds the operation unit of the endoscope connected to the insertion portion. When the operation unit is held by the hanger, the sliding mechanism holds the endoscope sterilization device so that it can slide along the hanging direction of the insertion portion that hangs down under its own weight.

[0021] The slide mechanism preferably includes a speed damping mechanism for damping the speed at which the endoscope sterilizer moves.The endoscope holding device is preferably an endoscope stand or an endoscope cart.

[0022] It is preferable that the insertion portion is provided with a grip portion that is provided integrally with the insertion portion. It is preferable that the insertion portion is provided with a cover member that is detachably attached to the insertion portion, and when the cover member and the insertion portion are integrated, the cover member forms a bottomed tubular container having an opening, a peripheral surface, and a bottom surface, and that at least a part of the insertion portion can be inserted through the opening. [Effects of the Invention]

[0023] According to the present invention, a high sterilization effect can be obtained on the insertion part of an endoscope. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a perspective view of an endoscope system and an endoscope sterilization system. [Figure 2] FIG. 2 is a perspective view of the endoscope sterilization device. [Figure 3] FIG. 2 is a cross-sectional view of the main part of the endoscope sterilization device. [Figure 4] 2 is a block diagram showing an outline of the electrical configuration of the endoscope sterilization device. FIG. [Figure 5] FIG. 10 is a perspective view of an endoscope sterilization system according to a second embodiment. [Figure 6] FIG. 4 is a cross-sectional view of a main part of a second embodiment of an endoscope sterilizer. [Figure 7] FIG. 10 is a perspective view of the endoscope sterilization apparatus according to the third embodiment. [Figure 8] FIG. 10 is a schematic diagram showing the configuration of an insertion portion holding portion and an insertion length detection portion in an endoscope sterilization device and an endoscope sterilization system according to a first modified example. [Figure 9] FIG. 10 is a perspective view of a second modified example of an endoscope sterilization system. [Figure 10] FIG. 10 is a perspective view showing a state in which a part of the endoscope sterilization device is removed in the endoscope sterilization system of the second modified example. [Figure 11] FIG. 10 is a cross-sectional view of a main part of a second modified example of an endoscope sterilization system. [Figure 12] FIG. 10 is a perspective view of an endoscope sterilization system according to a fourth embodiment. [Figure 13] FIG. 10 is a perspective view of the endoscope sterilization apparatus according to the fourth embodiment. [Figure 14] FIG. 10 is a cross-sectional view of a main part of a fourth embodiment of an endoscope sterilizer. [Figure 15] FIG. 10 is a perspective view of an endoscope sterilization system according to a fifth embodiment. [Figure 16] FIG. 10 is a perspective view of the endoscope sterilization apparatus according to the fifth embodiment. [Figure 17]FIG. 10 is a perspective view of the endoscope sterilization apparatus of the sixth embodiment. [Figure 18] FIG. 13 is a perspective view showing the state in which the cover member is separated from the sterilizer body of the endoscope sterilizer of the sixth embodiment. [Figure 19] 10A and 10B are perspective views of a third modified example of an endoscope sterilization device, showing a form used for sterilizing an endoscope (A) and a form used for sterilizing endoscopic equipment (B). [Figure 20] FIG. 10 is a perspective view showing an example in which the endoscope sterilization device of the third modified example is used to sterilize a processor device. [Figure 21] FIG. 13 is a perspective view showing an endoscope sterilization system according to a seventh embodiment. [Figure 22] FIG. 13 is a side view showing an endoscope sterilization system according to a seventh embodiment. [Figure 23] FIG. 13 is a perspective view of the endoscope sterilizer of the seventh embodiment, viewed from the rear side. [Figure 24] FIG. 11 is a perspective view of the endoscope sterilizer of the fourth modified example, as viewed from the rear side. DETAILED DESCRIPTION OF THE INVENTION

[0025] [First embodiment] As shown in FIG. 1, the endoscope system 10 includes an endoscope 12, a light source device 14, a processor device 15, a display 16, a keyboard (not shown), an endoscope sterilization device 18, and an endoscope cart 20 on which these devices are placed and transported. The endoscope cart 20 constitutes an endoscope holding device as defined in the claims. The endoscope 12 photographs an object to be observed. The light source device 14 emits illumination light to irradiate the object to be observed. The processor device 15 controls the endoscope system 10. The display 16 is a display unit that displays an observation image based on an endoscopic image, etc. The keyboard is an input device for inputting settings to the processor device 15, etc.

[0026] The endoscope 12 has a flexible section 12a, an operating section 12b connected to the base end of the flexible section 12a, a bending section 12c (see FIG. 2) provided on the distal side of the flexible section 12a, and a distal end section 12d (see FIG. 2). The insertion section of the endoscope 12 is composed of the flexible section 12a, the bending section 12c, and the distal end section 12d. By operating an angle knob 12e of the operating section 12b, the bending section 12c is bent. As a result, the distal end section 12d is oriented in a desired direction. The endoscope 12 has a cord 12f connected to a light source device 14 and a processor device 15, and is optically connected to the light source device 14 and electrically connected to the processor device 15.

[0027] The endoscope sterilization device 18 and the endoscope cart 20 constitute an endoscope sterilization system as defined in the claims. The endoscope cart 20 includes a frame base 21, four casters 22, support columns 23 and 24, a top plate 26, shelf boards 27 and 28, a stand 29, and two hangers 30. The frame base 21 is formed in a substantially rectangular shape, with casters 22 provided at its four corners. The support columns 23 and 24 are columnar members erected upward from both side ends of the frame base 21. The top plate 26 is formed in a substantially rectangular shape and is disposed at the upper ends of the support columns 23 and 24. Both side ends of the top plate 26 are fixed to the inside of the upper ends of the support columns 23 and 24.

[0028] The shelf boards 27, 28 are formed in a substantially rectangular shape and are fixed to the inside of the middle parts of the support columns 23, 24. The shelf boards 27, 28 separate the frame base portion 21 and the top plate 26. Each caster 22 is provided with a stop lever 22a for restricting its rotation. When the stop lever 22a is in the lowered position, the rotation of the caster 22 is restricted, and when the stop lever 22a is in the raised position, the caster 22 is allowed to rotate.

[0029] The top plate 26 and shelves 27 and 28 are panels on which endoscopic equipment and the like are placed. In the example shown in FIG. 1, the processor device 15 and the light source device 14 are placed on the top surface of the shelf 27, and the endoscopic sterilization device 18 is placed on the top surface of the shelf 28.

[0030] A handle 26a is provided on the front of the top panel 26. A user can easily move the endoscope cart 20 by holding the handle 26a. A drawer section 26b is provided on the underside of the top panel 26. The drawer section 26b stores a keyboard and other components used for inputting data to the processor device 15 and other components. The display 16 is fixed to a stand 29 attached to the upper end of the left-side support column 24, and is connected to the processor device 15 via wiring within the stand 29 and the support column 24.

[0031] The hanger 30 is attached to the upper end of the right-side support column 23 via a hanger stand 31. The hanger stand 31 is composed of an L-shaped stand member 31a and a linear stand member 31b. One end of the stand member 31a is rotatably attached to the support column 23. The hanger 30 is fixed to the stand member 31b. The hanger 30 holds the operation unit 12b of the endoscope 12, as described below. The stand member 31b is rotatably connected to the other end of the stand member 31a. This makes it possible to adjust the positions of the hanger 30 and the endoscope 12 held by the hanger 30 by rotating the stand members 31a and 31b relative to the support column 23.

[0032] The hanger 30 has a notch or groove, and the operation section 12b of the endoscope 12 can be held in the notch or groove to hang the endoscope 12 on the hanger 30. When the operation section 12b is held on the hanger 30, the hanging direction of the flexible section 12a, which hangs down due to its own weight, becomes parallel to the vertical direction Z. The hanger 30 is adjusted to a position where the tip section 12d does not contact the floor surface when the endoscope 12 is hung. Note that the number of hangers 30 is not limited to two, and an appropriate number of hangers 30 can be provided depending on the purpose of use of the endoscope 12 and the dimensions of the endoscope cart 20 and hanger stand 31.

[0033] As shown in Fig. 2, the endoscope sterilization device 18 includes a housing 41 as a storage section, sterilization light sources 42 and 43, a light source control section 44 (see Fig. 4), and a power switch 45. The endoscope sterilization device 18 sterilizes at least a part of the insertion section of the endoscope 12. In this embodiment, the endoscope sterilization device 18 mainly sterilizes the tip section 12d.

[0034] The housing 41 is formed in a cylindrical shape with a bottom, and has an opening 41A, a peripheral portion 41B, and a rear portion 41C. The peripheral portion 41B is formed in a rectangular cylindrical shape that constitutes the top and bottom surfaces and the left and right side surfaces of the housing 41. The rear portion 41C closes the rear end of the peripheral portion 41B. The rear portion 41C corresponds to the bottom portion in the claims.

[0035] The interior of the housing 41, surrounded by the peripheral surface portion 41B and the rear surface portion 41C, is a sterilization space 41D, which is a space irradiated with sterilizing ultraviolet light (described later). The sterilization space 41D is formed with dimensions at least larger than the outer diameter and axial length of the distal end portion 12d, and can accommodate the distal end portion 12d. The opening 41A is located on the front surface of the peripheral surface portion 41B and is a circular through-hole with an inner diameter at least larger than the outer diameter of the distal end portion 12d. The opening direction of the opening 41A, i.e., the direction parallel to the central axis CL (see FIG. 3) of the opening 41A, intersects with the vertical direction Z, which is the hanging direction of the flexible portion 12a. Note that the opening direction of the opening 41A can be changed as appropriate depending on the orientation of the endoscope sterilizer 18. However, in this embodiment, for convenience of explanation, the opening direction of the opening 41A is defined as the front-rear direction X of the endoscope cart 20. At least a part of the insertion portion, ie, the tip portion 12d, can be inserted into the sterilization space 41D through the opening 41A from outside the housing 41. A power switch 45 is provided near the opening 41A.

[0036] Sterilization light source 42 is provided on rear surface 41C of housing 41. Sterilization light source 42 uses an ultraviolet light source. Sterilization light source 42 is either an excimer lamp or an ultraviolet LED (Light Emitting Diode). An excimer lamp is a discharge lamp that takes advantage of the characteristic of dielectric barrier discharge, which generates multiple short-term discharges, to emit light from rare gas atoms or excimers formed by rare gas atoms and halogen atoms, and is available in double-cylindrical and flat-plate structures. For example, a flat-plate excimer lamp is used as sterilization light source 42.

[0037] The excimer lamp preferably emits ultraviolet light (first ultraviolet light) with a peak wavelength of 222 nm (±10 nm) and a wavelength band of 200 nm to 280 nm, more preferably a wavelength band of 200 nm to 230 nm. The biological transmittance of the first ultraviolet light is lower than that of ultraviolet light (specific ultraviolet light) at 254 nm, which has a higher light intensity. For example, the transmittance of the cornea of ​​the eye (the proportion of light absorbed by the cornea out of light incident on the cornea) is 0.01 for first ultraviolet light and 30% for specific ultraviolet light. Therefore, first ultraviolet light is safe for the skin and eyes of humans and animals while retaining the sterilizing and virus inactivating capabilities inherent to ultraviolet light.

[0038] The ultraviolet LED preferably emits second ultraviolet light, which is deep ultraviolet light with a wavelength band of 300 nm or less. The second ultraviolet light has the function of destroying the genetic information of viruses and bacteria, and therefore has a sterilizing effect on water and air. For example, the second ultraviolet light has a high sterilizing effect on the human coronavirus (HCoV-229E) as a virus. In addition, the ultraviolet LED preferably has functions such as waterproofing and heat dissipation. Compared to mercury lamps, ultraviolet LEDs have a smaller impact on the environment.

[0039] The sterilization light source 42 is exposed from the innermost surface of the sterilization space 41 D. The sterilization light source 42 includes an optical member (not shown) and diffuses and irradiates ultraviolet light into the sterilization space 41 D, and can diffuse the ultraviolet light over an irradiation range that encompasses at least the entire surface of the tip 12 d.

[0040] The sterilization light source 43 is provided on the peripheral surface 41B of the housing 41. In the example shown in Figures 2 and 3, the sterilization light source 43 is an elongated sterilization light source provided on the top and bottom surfaces and the left and right sides of the sterilization space 41D, and is arranged parallel to the front-rear direction X. The sterilization light source 43 uses an ultraviolet light source similar to the sterilization light source 42 described above, but it is preferable to use a cylindrical excimer lamp.

[0041] 4, the sterilization light sources 42, 43 are controlled by a light source control unit 44. The sterilization light sources 42, 43, which are controlled by the light source control unit 44 and have started emitting ultraviolet light, automatically stop emitting ultraviolet light when a predetermined time (several seconds to several minutes) has elapsed as measured by a timer built into the light source control unit 44. Note that the control of the sterilization light sources 42, 43 by the light source control unit 44 is not limited to this. For example, the sterilization light sources 42, 43 may be controlled such that the housing 41 is provided with an optical or physical sensor that detects the insertion state of the insertion part, and the sensor turns on when it detects that the insertion part (any of the flexible section 12a, the bending section 12c, and the tip end portion 12d) has been inserted into the housing 41 and starts emitting ultraviolet light, and turns off when it detects that the insertion part has been removed from the housing 41 and stops emitting ultraviolet light.

[0042] Note that the control of the sterilization light source 42 by the light source controller 44 is not limited to the above, and for example, the irradiation of ultraviolet light may be stopped if a predetermined condition is met even before a predetermined time has elapsed. The predetermined condition here means, for example, that the endoscope sterilization device 18 is provided with an optical or physical sensor that detects the insertion state of the insertion portion in the housing 41, and when the insertion portion is removed from the housing 41, the light source controller 44 determines that the predetermined condition is met and stops the irradiation of ultraviolet light.

[0043] Furthermore, when the light source control unit 44 temporarily stops ultraviolet radiation before a predetermined time has elapsed because the above-described predetermined condition has been met, and the actual radiation time is shorter than the preset time, the light source control unit 44 controls the sterilization light source 42 to notify the user of this fact. After making the notification, if the predetermined condition is canceled, the light source control unit 44 resumes ultraviolet radiation from the sterilization light source 42. An example of a case where the predetermined condition is canceled is when it is detected that the insertion part has been reinserted into the housing 41. Note that the notification that the radiation time is short can be made by, for example, emitting a sound or changing the display on the indicator.

[0044] The operation of the above configuration will now be described. Before observation using the endoscope 12, the operating section 12b of the cleaned endoscope 12 is held by the hanger 30. When the operating section 12b is held by the hanger 30, the flexible section 12a hangs down due to its own weight. The user, a doctor or medical staff member, operates the power switch 45 of the endoscope sterilizer 18 to turn on the power. Then, the tip section 12d is inserted into the housing 41, i.e., the sterilization space 41D, from the opening 41A. Ultraviolet light is irradiated from the sterilization light sources 42, 43 onto at least a part of the insertion section, including the tip section 12d. The tip section 12d is reliably sterilized by the irradiation of ultraviolet light, and a high sterilization effect can be achieved.

[0045] Furthermore, the ultraviolet light used to irradiate at least a part of the insertion portion from sterilization light sources 42 and 43 has a wavelength band of 200 nm to 280 nm, so sterilization can be achieved more reliably.

[0046] [Second embodiment] In the first embodiment, the endoscope sterilizer 18 is exemplified as being mounted on an endoscope cart 20, but this is not limiting, and in the second embodiment described below, an endoscope sterilizer attached to an endoscope cart 20 will be described. The configuration of the endoscope cart 20 is the same as in the first embodiment, and so description thereof will be omitted.

[0047] As shown in Figure 5, the endoscope sterilization device 50 is attached to the support 23 of the endoscope cart 20. The endoscope sterilization device 50 and the endoscope cart 20 constitute an endoscope sterilization system as defined in the claims. The endoscope sterilization device 50 is disposed below the hanger 30. That is, when the operation part 12b is held by the hanger 30, the endoscope sterilization device 50 is located at the distal end side in the hanging direction (i.e., the vertical direction Z) in which the flexible part 12a hangs down due to its own weight, and when the operation part 12b of the endoscope 12 is held by the hanger 30, the distal end 12d is inserted.

[0048] The endoscope sterilization apparatus 50 includes a housing 51 as a storage section, sterilization light sources 52 and 53, a light source control section (not shown), and a power switch 54. The endoscope sterilization apparatus 50 sterilizes at least a part of the insertion section of the endoscope 12. In this embodiment, the endoscope sterilization apparatus 50 mainly sterilizes the tip section 12d. The housing 51 has a space capable of accommodating multiple tip sections 12d, and in the example shown in FIG. 5, the endoscope sterilization apparatus 50 sterilizes two tip sections 12d simultaneously.

[0049] As shown in FIG. 6, the housing 51 is formed in a cylindrical shape with a bottom, having an opening 51A, a peripheral surface 51B, and a bottom surface 51C. The peripheral surface 51B is formed in a rectangular cylindrical shape that constitutes the front and rear surfaces and the left and right side surfaces of the housing 51. The bottom surface 51C closes the lower end of the peripheral surface 51B. do.

[0050] The interior of the housing 51, surrounded by the peripheral surface portion 51B and the bottom surface portion 51C, is a sterilization space 51D, which is a space irradiated with sterilizing ultraviolet light. The sterilization space 51D is formed with dimensions at least larger than the outer diameter and axial length of the tip portion 12d, and can accommodate multiple tip portions 12d. The opening 51A is located on the upper surface of the peripheral surface portion 51B and is a rectangular through-hole that allows multiple tip portions 12d to pass through. The opening direction of the opening 51A is parallel to the vertical direction Z, which is the hanging direction of the flexible portion 12a. This allows the tip portion 12d to be inserted into the sterilization space 51D from outside the housing 51 through the opening 51A. A power switch 54 is provided near the opening 51A.

[0051] The sterilization light source 52 is provided on the bottom surface 51C of the housing 51. The sterilization light source 52 uses an ultraviolet light source. The sterilization light source 52 is exposed from the lowest surface of the sterilization space 51D. The sterilization light source 52 includes an optical member (not shown) that diffuses and irradiates ultraviolet light into the sterilization space 51D, and can diffuse the ultraviolet light over an irradiation range that encompasses at least the entire surface of the tip 12d. In the example shown in FIG. 6, two sterilization light sources 52 are provided to match the position where the tip 12d is inserted.

[0052] Sterilization light source 53 is provided on peripheral surface 51B of housing 51. Sterilization light source 53 is an elongated sterilization light source provided on the front, rear, left, and right sides of sterilization space 51D, and is arranged parallel to the up-down direction Z. Note that sterilization light sources 52, 53 use ultraviolet light sources similar to sterilization light sources 42, 43 in the first embodiment, but it is preferable to use a flat excimer lamp as sterilization light source 52 and a cylindrical excimer lamp as sterilization light source 53.

[0053] The sterilizing light sources 52, 53 are controlled by a light source control unit. The light source control unit of this embodiment performs the same control as the light source control unit 44 of the first embodiment, and automatically stops the ultraviolet light emission from the sterilizing light sources 52, 53 after a predetermined time (several seconds to several minutes) has elapsed. The control of the sterilizing light sources 52, 53 by the light source control unit is not limited to this. The endoscope sterilizing device 50 or the endoscope cart 20 may be provided with a human presence sensor that detects the presence of a person around the casing 51, and the light source control unit may start emitting ultraviolet light when it detects that a person is around the casing 51, and stop emitting ultraviolet light when it detects that the person is no longer around the casing 51.

[0054] Furthermore, the light source controller controls the sterilization light sources 52, 53 in such a way that if a predetermined condition is met before a predetermined time has elapsed, the light source controller stops emitting ultraviolet light, or if the actual irradiation time is shorter than the preset time when the predetermined condition is met and the irradiation is temporarily stopped before the predetermined time has elapsed, the light source controller notifies the user of this fact. As in the above embodiment, when the insertion section is removed from the housing 51, the light source controller may determine that the predetermined condition is met and stop emitting ultraviolet light, or the light source controller may determine that the predetermined condition is met and stop emitting ultraviolet light when a human presence sensor or the like is provided in the endoscope sterilization device 50 or the endoscope cart 20 and detects that no one is around the housing 51.

[0055] The operation of the above configuration will now be described. Before observation using the endoscope 12, when the operating section 12b of the endoscope 12 is held by the hanger 30, as described above, the endoscope sterilizer 50 is positioned in the direction in which the flexible section 12a hangs down due to its own weight. As a result, when the operating section 12b is held by the hanger 30, the endoscope sterilizer 50 is positioned near the tip end 12d, so the user, i.e., a doctor or medical staff member, can easily insert the tip end 12d through the opening 51A into the interior of the housing 51, i.e., into the sterilization space 51D. The doctor or medical staff member then operates the power switch 54 of the endoscope sterilizer 50 to turn on the power. As in the first embodiment, the tip end 12d is reliably sterilized by irradiation with ultraviolet light, achieving a high sterilization effect.

[0056] [Third embodiment] In a third embodiment described below, in addition to the configurations of the first and second embodiments, a lid member may be provided that forms at least a part of the bottom or peripheral surface and that is movable to expose the inside of the storage unit. The endoscope sterilization apparatus 60 of this embodiment shown in Figure 7 may be placed on the endoscope cart 20 as in the first embodiment, or may be attached to the endoscope cart 20 as in the second embodiment.

[0057] The endoscope sterilizer 60 comprises a housing 61 as a storage section, sterilization light sources 62 and 63, a light source control section (not shown), a cover member 64, and a power switch 65. The endoscope sterilizer 60 sterilizes at least a part of the insertion section of the endoscope 12, and mainly sterilizes the tip section 12d. The housing 61 has a space large enough to store multiple tip sections 12d.

[0058] The housing 61 is formed in a cylindrical shape with a bottom, having an opening 61A, a peripheral surface 61B, and a bottom surface 61C. The peripheral surface 61B is formed in a cylindrical shape extending in the vertical direction Z. The bottom surface 61C closes the lower end of the peripheral surface 61B. The interior of the housing 61, surrounded by the peripheral surface 61B and the bottom surface 61C, is a sterilization space 61D, which is a space irradiated with sterilizing ultraviolet light. The sterilization space 61D is formed to have dimensions greater than at least the outer diameter and axial length of the tip portion 12d. The opening 61A is located on the upper surface of the peripheral surface 61B and is a circular through-hole that allows multiple flexible portions 12a to pass through. This allows flexible portions 12a to be inserted into the sterilization space 61D from outside the housing 61 through the opening 61A. A power switch 65 is provided near the opening 61A.

[0059] The sterilization light source 62 is provided on the bottom surface 61C of the housing 61. The sterilization light source 62 uses an ultraviolet light source. The sterilization light source 62 is exposed from the lowest surface of the sterilization space 61D. The sterilization light source 62 includes an optical member (not shown) that diffuses and irradiates ultraviolet light into the sterilization space 61D, and can diffuse the ultraviolet light over an irradiation range that includes at least the entire surface of the tip end 12d.

[0060] The sterilization light source 63 is provided on the peripheral surface 61B of the housing 61. The sterilization light source 63 is an elongated sterilization light source provided on the inner peripheral surface of the sterilization space 61D and is arranged parallel to the up-down direction Z. As will be described later, the cover member 64 constitutes part of the peripheral surface 61B, and therefore some of the multiple sterilization light sources 63 are provided on the inner peripheral surface of the cover member 64. The sterilization light sources 62 and 63 use ultraviolet light sources similar to the sterilization light sources 42, 43, 52, and 53 in the first embodiment, but it is preferable to use a flat excimer lamp as the sterilization light source 62 and a cylindrical excimer lamp as the sterilization light source 63. The sterilization light sources 62 and 63 are controlled by a light source controller. The light source controller in this embodiment performs control similar to that of the light source controller 44 in the first embodiment, and therefore a description thereof will be omitted.

[0061] The lid member 64 constitutes at least a part of the peripheral surface portion 61B and is provided movably relative to the housing 61; specifically, it is rotatably connected to the housing 61 via a rotation shaft 64A. The lid member 64 is rotatable between a closed position (position indicated by a two-dot chain line) in which it covers the sterilization space 61D of the housing 61, and an open position (position indicated by a solid line) in which it exposes the sterilization space 61D of the housing 61. This provides the effects of the first and second embodiments, and in addition, when cleaning the endoscope sterilizer 60, the lid member 64 can be moved to the open position to expose the inside of the housing 61, i.e., the sterilization space 61D. This makes it easier to clean the endoscope sterilizer 60.

[0062] The lid member 64 may also be configured to be detachably separated from the housing 61. In this case, for example, a locking claw may be provided on one of the housing 61 and the lid member 64 and a locking hole may be provided on the other, and the housing 61 and the lid member 64 may be integrated by locking them together, and the locking may be released to separate the housing 61 and the lid member 64.

[0063] In the first to third embodiments, a sterilization light source is provided on each of the peripheral and bottom surfaces of the housings 41, 51, 61, but the present invention is not limited to this. For example, a sterilization light source may be provided on only one of the peripheral and bottom surfaces of the housings 41, 51, 61, and a reflector may be provided inside the other (at a position facing the sterilization space 41D, 51D, 61D) to reflect ultraviolet light from the sterilization light source.

[0064] [First Modification] As a modification, in addition to the configuration of the endoscope sterilization device and endoscope sterilization system of the first to third embodiments, an insertion portion holding unit 66 and an insertion length detection unit 67 may be provided, as shown in FIG. 8.

[0065] The insertion section holding section 66 (see also FIG. 5) is provided, for example, on the endoscope cart 20. The insertion section holding section 66 is disposed near the hanger 30. Specifically, when the operation section 12b is held on the hanger 30, the insertion section holding section 66 is disposed so as to align with the position of the hanging flexible section 12a (the position indicated by the solid line in FIG. 8). In the example shown in FIG. 5, the insertion section holding section 66 holds the flexible section 12a housed in the housing 51 of the endoscope sterilizer 50. The insertion section holding section 66 is formed with, for example, an opening 66a having an inner diameter that matches the outer diameter of the flexible section 12a, and a notch 66b cut from the side surface of the insertion section holding section 66 toward the opening 66a. As a result, the flexible section 12a inserted through the notch 66b is held in the opening 66a of the insertion section holding section 66.

[0066] When applied to the example shown in FIG. 5 , the insertion length detection unit 67 detects the insertion length of the flexible section 12 a into the housing 51 of the endoscope sterilization apparatus 50. The insertion length detection unit 67 has the same configuration as a well-known unit that detects the insertion length of an insertion section into a subject. A measurement scale 12 g for measuring the insertion length of the insertion section into the subject is provided on the outer peripheral surface of the flexible section 12 a of the endoscope 12. The insertion section holding unit 66 is provided with a scale detection sensor 71 that detects the measurement scale 12 g. The scale detection sensor 71 transmits a detection signal for the detected measurement scale 12 g to the insertion length detection unit 67. Because the positional relationship between the housing 51 and the insertion section holding unit 66 is predetermined, the insertion length detection unit 67 detects the insertion length of the flexible section 12 a into the housing 51 from the detection signal of the scale detection sensor 71.

[0067] For example, the insertion length detection unit 67 transmits the detected insertion length of the insertion portion of the endoscope 12 to the light source control unit of the endoscope sterilization device 50. The light source control unit of the endoscope sterilization device 50 controls the sterilization light sources 52, 53 according to the insertion length of the insertion portion detected by the insertion length detection unit 67, and, for example, controls the sterilization light sources 52, 53 to start irradiating ultraviolet light when the insertion length of the insertion portion into the housing 51 is equal to or greater than a certain value, and to stop irradiating ultraviolet light when the insertion length of the insertion portion into the housing 51 is less than the certain value.

[0068] In the example shown in Figures 5 and 8, the insertion portion holding unit 66 and the insertion length detection unit 67 are applied to the endoscope sterilization device 50 and endoscope sterilization system of the second embodiment, but they may also be applied to the endoscope sterilization device and endoscope sterilization system of the first and third embodiments.

[0069] Furthermore, in the above-described modified example, when the operation section 12b is held by the hanger 30, the insertion section holding section 66 is arranged to match the position of the hanging flexible section 12a (the position of the flexible section 12a shown by the solid line in FIG. 8). On the other hand, if the position of the insertion section holding section 66 does not match the position of the flexible section 12a hanging from the holding position of the hanger 30 (the position of the flexible section 12a shown by the two-dot chain line in FIG. 8), the insertion section holding section 66 may be used as a positioning section to bend a part of the flexible section 12a and hold it in the opening 66a to position it. This makes it possible to determine the position of the flexible section 12a so that it can be inserted into the housing section of the endoscope sterilizer.

[0070] [Second Modification] In each of the above embodiments, the endoscope sterilizer is used as a separate unit from the endoscope cart 20 serving as an endoscope holding device, or is always fixed to the endoscope cart 20, but the present invention is not limited to this, and part or all of the endoscope sterilizer may be detachable from the endoscope cart 20. In the example shown in Figures 9 and 10, a housing 76 serving as a storage section constituting an endoscope sterilizer 75 is detachable from the endoscope cart 20.

[0071] The endoscope sterilization apparatus 75, like the endoscope sterilization apparatus 50 in the second embodiment, is attached to the support column 23 of the endoscope cart 20. The endoscope sterilization apparatus 75 comprises a housing 76 and a light source unit 77. Like the housing 51 of the endoscope sterilization apparatus 50 in the second embodiment, the housing 76 is formed in the shape of a closed-end tube having an opening 76A, a peripheral surface 76B, and a bottom surface 76C.

[0072] As shown in Fig. 11, the peripheral surface portion 76B has a fitting opening 76D formed in a position facing the support 23. The fitting opening 76D is an opening cut out from the outer circumferential surface of the peripheral surface portion 76B and has a square cross section. A transmission window 76E is provided in the inner circumferential surface of the peripheral surface portion 76B at a position facing the fitting opening 76D. The transmission window 76E transmits ultraviolet light from a sterilization light source 78, which will be described later. The transmission window 76E may also function as a diffusion plate that diffuses ultraviolet light.

[0073] Furthermore, a reflecting material 76F is provided on the inner peripheral surface of the peripheral surface portion 76B. The reflecting material 76F reflects ultraviolet light from a sterilization light source 78, which will be described later. The configuration of the fitting opening 76D is not limited to that described above, and the fitting opening 76D may be a through-hole that penetrates from the outer peripheral surface to the inner peripheral surface of the peripheral surface portion 76B without providing the transmission window 76E.

[0074] The light source unit 77 includes a sterilizing light source 78 and a fitting member 79 that holds the sterilizing light source 78, and is fixed to the support column 23. The fitting member 79 has an outer shape with a rectangular cross section that fits into the fitting opening 76D. The housing 76 can be detachably attached to the endoscopic cart 20 by fitting the fitting member 79 into the fitting opening 76D. When the fitting opening 76D is fitted into the fitting member 79, the sterilizing light source 78 is exposed inside the housing 76 through the transmission window 76E. The sterilizing light source 78 uses an ultraviolet light source similar to the sterilizing light sources 42 and 43 in the first embodiment. The reflector 76F reflects ultraviolet light from the sterilizing light source 78, allowing ultraviolet light to be irradiated onto the entire interior of the housing 76. As described above, because the housing 76 is detachable from the endoscopic cart 20, the sterilizing light source 78 is provided only on the endoscopic cart 20, thereby reducing costs. Furthermore, the endoscope sterilizer 75 can be easily cleaned.

[0075] In the example shown in Figures 9 to 11, a part of the endoscope sterilization device is detachable from the endoscope cart 20, but this is not limited to this, and the entire endoscope sterilization device may be detachable from the endoscope cart 20.

[0076] [Fourth embodiment] In the above first to third embodiments, the endoscope sterilization device and endoscope sterilization system sterilize at least a part of the flexible section 12a of the endoscope 12, and mainly sterilize the tip section 12d, but the present invention is not limited to this and the entire flexible section 12a may also be sterilized. The fourth embodiment described below shows an endoscope sterilization system that is provided with a slide mechanism and sterilizes the entire flexible section 12a by sliding the endoscope sterilization device with this slide mechanism.

[0077] As shown in Figure 12, the endoscope sterilization device 80 and slide mechanism 81 are attached to the endoscope cart 20. The configuration of the endoscope cart 20 is the same as that of the first embodiment, and therefore a description thereof will be omitted. The endoscope sterilization device 80, slide mechanism 81, and endoscope cart 20 constitute an endoscope sterilization system as defined in the claims.

[0078] 13, endoscope sterilization device 80 includes an insertion section 82, sterilization light sources 83 and 84, a light source control section (not shown), an attachment piece 85, and a power switch 86. Endoscope sterilization device 80 is disposed below hanger 30. That is, when operation section 12b is held by hanger 30, it is disposed at a position corresponding to flexible section 12a in the hanging direction (i.e., vertical direction Z) in which flexible section 12a hangs down due to its own weight.

[0079] The insertion portion 82 is formed in a U-shape and has at least a peripheral surface portion 87 that faces the flexible portion 12a. As described above, the endoscope sterilizer 80 is disposed below the hanger 30, so when the operation portion 12b of the endoscope 12 is held by the hanger 30, the flexible portion 12a can be inserted through the insertion portion 82.

[0080] In this embodiment, the linear portions 87A of the peripheral surface portion 87 facing each other are arranged parallel to the front-rear direction X of the endoscope cart 20. The inside of the insertion portion 82 surrounded by the peripheral surface portion 87 is a sterilization space 87B, which is a space into which sterilizing ultraviolet light is irradiated by the sterilizing light sources 83, 84. As a result, when the operation portion 12b is held by the hanger 30, the flexible portion 12a hangs down due to its own weight, and the sterilization light sources 83, 84 can irradiate at least a portion of the flexible portion 12a inserted into the insertion portion 82 with sterilizing ultraviolet light. The sterilization space 87B is formed to have dimensions larger than at least the outer diameter and axial length of the tip portion 12d.

[0081] An ultraviolet light source is used as the sterilization light source 83. One or more sterilization light sources 83 are provided on the peripheral surface portion 87, and are exposed from the innermost surface of the sterilization space 87B. The sterilization light source 83 includes an optical member (not shown), and diffuses ultraviolet light to irradiate the sterilization space 87B.

[0082] Sterilization light source 8 4 is provided on the linear portion 87A of the peripheral surface portion 87. 4 are elongated sterilization light sources provided at positions facing each other in the sterilization space 87B, and are arranged parallel to the front-rear direction X. The sterilization light sources 83, 84 use ultraviolet light sources similar to the sterilization light sources 42, 43 in the first embodiment, but it is preferable to use a flat excimer lamp as the sterilization light source 83 and a cylindrical excimer lamp as the sterilization light source 84. The sterilization light sources 83, 84 are controlled by a light source controller. The light source controller in this embodiment performs control similar to that of the light source controller 44 in the first embodiment, and therefore a description thereof will be omitted.

[0083] The mounting piece 85 is provided integrally with the insertion portion 82. The mounting piece 85 is formed in a plate shape extending in the front-rear direction X. A fitting member 88 (see FIG. 14) that constitutes the slide mechanism 81 is provided integrally with the mounting piece 85. The fitting member 88 will be described later. The mounting piece 85 also has a recess 85A that is recessed one step from the surrounding area, making it easy for the user to place their hand on it. A power switch 86 is also provided on the mounting piece 85.

[0084] The slide mechanism 81 includes a fitting member 88, a slide groove 89, and a speed attenuation mechanism 91. The slide groove 89 is a linear groove formed on the side surface of the support 23 and extending in the up-down direction Z. The fitting member 88 is disposed in a position facing the slide groove 89 on the mounting piece 85. The fitting member 88 is integrally formed with a fitting portion 88A formed to match the width of the slide groove 89 and a retaining portion 88B formed larger than the width of the slide groove 89. The retaining portion 88B prevents the fitting member 88 from coming off the slide groove 89.

[0085] 14, the fitting portion 88A is slidably fitted into the slide groove 89. This allows the endoscope sterilization device 80 to be held slidably in the up-down direction Z relative to the slide groove 89. In other words, the endoscope sterilization device 80 is slidable along the hanging direction of the flexible section 12a that hangs down due to its own weight.

[0086] The speed reduction mechanism 91 reduces the sliding speed of the endoscope sterilizer 80. Specifically, the speed reduction mechanism 91 is made up of, for example, a gas spring, and is disposed between the endoscope sterilizer 80 and the support column 23. Although the speed reduction mechanism 91 is shown disposed on the outside of the support column 23 for convenience of illustration in Figures 13 and 14, in reality it is disposed in a position that cannot be seen from the outside, such as inside the support column 23.

[0087] As is well known, a gas spring is a spring that utilizes a reaction force based on the elasticity of gas when compressed. The gas spring is attached in a contracted state in the direction of compression, compressing the gas, and always generates a reaction force on the endoscope sterilizer 80 in a direction opposite to the downward movement due to its own weight, i.e., in the direction of upward movement of the endoscope sterilizer 80. The speed damping mechanism 91 is not limited to the above configuration and may be any mechanism that damps the sliding speed of the endoscope sterilizer 80. For example, a member with high friction resistance may be used for either the slide groove 89 or the fitting member 88, and the sliding speed of the endoscope sterilizer 80 may be damped by the frictional force generated between the slide groove 89 and the fitting member 88.

[0088] The operation of the above configuration will now be described. Before observation using the endoscope 12, when the operating section 12b of the endoscope 12 is held by the hanger 30, the flexible section 12a can be inserted into the insertion section 82, as described above. Then, the user, a doctor or medical staff member, operates the power switch 86 of the endoscope sterilization device 80 to turn on the power. The sterilization light sources 83, 84 can then irradiate sterilizing ultraviolet light onto at least a portion of the flexible section 12a inserted into the insertion section 82. The doctor or medical staff member holds the endoscope sterilization device 80 and, for example, slides it to the top end of the slide groove 89, thereby releasing the hold of the endoscope sterilization device 80 and gradually lowering it under its own weight. As the endoscope sterilization device 80 slides, the sterilization light sources 83, 84 irradiate the flexible section 12a with sterilizing ultraviolet light, thereby sterilizing the entire flexible section 12a. Irradiating the ultraviolet light reliably sterilizes the entire flexible section 12a, achieving a high sterilization effect.

[0089] In the above fourth embodiment, the slide mechanism 81 is exemplified as one in which the user manually slides the endoscope sterilization device 80, but this is not limiting. Instead of the above configuration, for example, a slide mechanism may be used which includes a motor as a drive source and a transmission mechanism that converts the rotational motion of the motor into linear motion, and which automatically slides the endoscope sterilization device 80.

[0090] [Fifth embodiment] The above fourth embodiment illustrates an endoscope sterilization system in which the endoscope sterilizer is slid by a slide mechanism to sterilize the entire flexible section 12a of the endoscope 12, but the present invention is not limited to this, and the endoscope sterilizer may be held by a user to sterilize the entire flexible section 12a of the endoscope 12. The fifth embodiment described below illustrates an endoscope sterilizer and endoscope sterilization system that are integrally provided with a grip that is held by the user.

[0091] As shown in Figure 15, the endoscope sterilization apparatus 100 is used together with an endoscope cart 20. To avoid complication, the display 16 is not shown in Figure 15. The endoscope sterilization apparatus 100 and the endoscope cart 20 constitute an endoscope sterilization system as defined in the claims. The configuration of the endoscope cart 20 is the same as that of the first embodiment, and therefore a description thereof will be omitted.

[0092] 16, the endoscope sterilizer 100 includes an insertion part 101, sterilization light sources 102 and 103, a light source control unit (not shown), a grip part 104, and a power switch 105. The insertion part 101 is U-shaped and has at least a peripheral part 106 that faces the flexible part 12a. When the operation part 12b of the endoscope 12 is held by the hanger 30 and the insertion part 101 is arranged around the flexible part 12a, the flexible part 12a can be inserted through the insertion part 101.

[0093] Peripheral surface portion 106 has straight portions 106A facing each other. The inside of insertion portion 101 surrounded by peripheral surface portion 106 is sterilization space 106B, which is a space into which sterilizing ultraviolet light is irradiated from sterilizing light sources 102 and 103. As a result, when operation portion 12b is held by hanger 30 and insertion portion 101 is arranged around flexible portion 12a (at a position facing the outer peripheral surface of flexible portion 12a), flexible portion 12a hangs down due to its own weight, and sterilization light sources 102 and 103 can irradiate at least a portion of flexible portion 12a inserted into insertion portion 101 with sterilizing ultraviolet light. Sterilization space 106B is formed to have dimensions larger than at least the outer diameter and axial length of tip portion 12d.

[0094] An ultraviolet light source is used as the sterilization light source 102. One or more sterilization light sources 102 are provided on the peripheral surface 106, and are exposed from the innermost surface of the sterilization space 106B. The sterilization light source 102 includes an optical member (not shown), and diffuses ultraviolet light to irradiate the sterilization space 106B.

[0095] Sterilization light source 10 3 is provided on the linear portion 106A of the peripheral surface portion 106. 3 are elongated sterilization light sources provided at positions facing each other in the sterilization space 106B. The sterilization light sources 102 and 103 use ultraviolet light sources similar to the sterilization light sources 42 and 43 in the first embodiment, but it is preferable to use a flat excimer lamp as the sterilization light source 102 and a cylindrical excimer lamp as the sterilization light source 103. The sterilization light sources 102 and 103 are controlled by a light source controller. The light source controller in this embodiment performs control similar to that of the light source controller 44 in the first embodiment, and therefore a description thereof will be omitted.

[0096] The grip portion 104 is provided integrally with the insertion portion 82. The grip portion 104 is formed in a plate shape. The grip portion 104 is formed to have a size and thickness that allows it to be easily gripped by an average human hand. The grip portion 104 also has a recess 104A that is recessed from the surrounding area, making it easy for the user to place their hand on it. The grip portion 104 also has a power switch 105 provided thereon.

[0097] The operation of the above configuration will now be described. Before observation using the endoscope 12, the operating section 12b of the endoscope 12 is held by the hanger 30. The user, a doctor or medical staff member, holds the gripping section 104 of the endoscope sterilization apparatus 100 (held by doctor D in FIG. 15 ), allowing the flexible section 12a to pass through the insertion section 101. Next, the power switch 105 of the endoscope sterilization apparatus 100 is operated to turn on the power. The sterilization light sources 102, 103 can then irradiate at least a portion of the flexible section 12a inserted through the insertion section 101 with sterilizing ultraviolet light. While maintaining this state, the doctor or medical staff member holds the gripping section 104 of the endoscope sterilization apparatus 100 and, for example, gradually lowers the flexible section 12a from the base end to the tip, or gradually raises it from the tip to the base end. When manually moving the endoscope sterilization device 100, the entire flexible section 12a can be sterilized by irradiating the flexible section 12a with sterilizing ultraviolet light from the sterilization light sources 102 and 103. The entire flexible section 12a is reliably sterilized by irradiation with ultraviolet light, and a high sterilization effect can be achieved.

[0098] [Sixth embodiment] In the above fifth embodiment, an endoscope sterilization device that is manually moved and used only to sterilize the entire flexible section 12a was exemplified, but the present invention is not limited to this, and the device may be configured to be changeable between a mode in which the tip end 12d is inserted to perform sterilization and a mode in which the tip end 12d is manually moved to perform sterilization of the entire flexible section 12a. The sixth embodiment described below shows an endoscope sterilization device and an endoscope sterilization system that, when in a stationary state, can be configured to insert the tip end 12d to perform sterilization and, when in a state in which the user holds it, can be configured to be manually moved to sterilize the entire flexible section 12a.

[0099] As shown in Figures 17 and 18, the endoscope sterilization apparatus 110 is composed of a sterilization apparatus main body 111 and a cover member 112. The sterilization apparatus main body 111 has the same configuration as the endoscope sterilization apparatus 100 of the fifth embodiment described above, and includes an insertion section 101, sterilization light sources 102 and 103, a grip section 104, a light source control section, and a power switch 105, so the same reference numerals are used and their explanations are omitted. The endoscope sterilization apparatus 110 is used together with an endoscope cart 20. The endoscope sterilization apparatus 110 and the endoscope cart 20 constitute an endoscope sterilization system as defined in the claims. The configuration of the endoscope cart 20 is the same as that of the first embodiment described above, so its explanation is omitted.

[0100] The cover member 112 is formed in a U-shape corresponding to the peripheral surface portion 106 of the sterilizer main body 111, and an open portion of one cover member or peripheral surface portion 106 is filled in by the other cover member or peripheral surface portion 106, thereby forming a storage portion 113 (see Figure 14). A protruding portion 112B, which is a one-step protrusion, is formed on the inner side of the straight portions 112A of the cover member 112 that face each other. For example, by fitting the protruding portion 112B between the straight portions 106A of the peripheral surface portion 106, the cover member 112 and the insertion portion 101, i.e., the sterilizer main body 111, can be integrated.

[0101] When the cover member 112 and the insertion portion 101 are integrated, the storage portion 113 is formed in a cylindrical shape with a bottom, having an opening 113A, a peripheral portion 113B, and a rear portion 113C. The peripheral portion 113B is formed in a rectangular cylindrical shape that constitutes the top and bottom surfaces and the left and right side surfaces of the storage portion 113. The rear portion 113C closes the rear end of the peripheral portion 113B. The rear portion 113C corresponds to the bottom portion in the claims.

[0102] The interior of the storage section 113, surrounded by the peripheral surface section 113B and the rear surface section 113C, is the sterilization space 106B of the insertion section 101, and is a space into which sterilizing ultraviolet light is irradiated from the sterilization light sources 102 and 103 provided in the sterilizer body 111. The sterilization space 106B is formed with dimensions larger than at least the outer diameter and axial length of the tip section 12d, and can accommodate the tip section 12d. The opening 113A is located in front of the peripheral surface section 113B and is a circular through-hole with an inner diameter larger than at least the outer diameter of the flexible section 12a. At least a portion of the flexible section 12a can be inserted into the sterilization space 106B from outside the storage section 113 through the opening 113A.

[0103] The operation of the above configuration will now be described. When the cover member 112 and the insertion section 101 are integrated, the endoscope sterilization device 110 includes the storage section 113 and the sterilization light sources 102 and 103. Therefore, like the endoscope sterilization device 18 of the first embodiment, it can be used as a stationary endoscope sterilization device that is placed on the endoscope cart 20 for use. That is, before observation using the endoscope 12, the user, a doctor or medical staff member, turns on the power switch 105 of the endoscope sterilization device 110 after holding the control section 12b of the endoscope 12 on the hanger 30. Then, the distal end 12d is inserted through the opening 113A into the storage section 113, i.e., into the sterilization space 106B. Ultraviolet light is irradiated from the sterilization light sources 102 and 103 onto at least a portion of the flexible section 12a, including the distal end 12d. The distal end 12d is reliably sterilized by the ultraviolet light irradiation, achieving a high sterilization effect.

[0104] On the other hand, when the cover member 112 and the insertion part 101 are separated, the sterilization device main body 111 has the same configuration as the endoscopic sterilization device 100 of the above-mentioned fifth embodiment. Therefore, when a doctor or medical staff holds the grip part 104 of the sterilization device main body 111 and manually moves the sterilization device main body 111, the sterilization light sources 102, 103 irradiate the flexible part 12a with sterilizing ultraviolet light, thereby sterilizing the entire flexible part 12a.

[0105] As described above, by simply attaching and detaching the cover member 112, the form can be changed between inserting the tip portion 12d for sterilization and manually moving it to sterilize the entire flexible portion 12a.

[0106] In the fourth to sixth embodiments, multiple sterilization light sources are provided in the insertion sections 82, 101, but the present invention is not limited to this, and for example, a reflector may be provided in place of at least some of the multiple sterilization light sources to reflect ultraviolet light from the sterilization light sources. Also, in the sixth embodiment, a reflector may be provided inside the cover member 112 (at a position facing the sterilization space 106B).

[0107] [Third Modification] In the modified examples described below, in addition to the configurations of the fifth and sixth embodiments, it is possible to change the configuration to be used for sterilizing endoscopic equipment. As shown in Fig. 19(A), the insertion part 101 is provided with a rotation shaft 115 that rotates the straight part 106A outward by 90°.

[0108] As shown in Figure 19(B), by rotating the straight line portions 106A outward by 90 degrees, the straight line portions 106A facing each other become aligned in a straight line, and all the sterilizing light sources 102, 103 are lined up on one side. This makes it possible to sterilize endoscopic equipment having a larger surface area than the flexible section 12a of the endoscope 12, such as the light source device 14 and the processor device 15. The sterilizer body 111 20 shows an example of the sterilizer body 111 of this modified example being used to sterilize a processor device 15, in which a user can hold the grip part 104 and point the sterilization light sources 102, 103 toward the operation panel 15A of the processor device 15 to irradiate it with ultraviolet light. This makes it possible to sterilize even an object with a large surface area such as the operation panel 15A. However, this is not limiting, and the sterilizer body 111 of this modified example may also be used to sterilize the operation switch 15B, etc.

[0109] [Seventh embodiment] In the fourth to sixth embodiments, an endoscope sterilization device and an endoscope sterilization system are exemplified that sterilize the entire flexible section 12a by moving the device relative to the flexible section 12a, but the present invention is not limited to this, and the entire flexible section 12a may be sterilized by covering the entire flexible section 12a. In an endoscope sterilization system 120 of this embodiment shown in Figures 21 to 23, a hanger 122 and an endoscope sterilization device 121 that sterilizes the flexible section 12a are provided integrally, and the entire flexible section 12a is sterilized.

[0110] As shown in Figure 21, the hanger 122 provided integrally with the endoscope sterilizer 121 is attached to an endoscope cart 123, and like the hanger 30 provided on the endoscope cart 20 in the first embodiment, has a notch or groove (in the example shown in Figure 23, a notch 122A is provided), and the operation section 12b of the endoscope 12 can be held in the notch or groove to hang the endoscope 12. The hanger 122 is attached to the upper end of the right-side support 23 via a hanger stand 31. When the operation section 12b is held by the hanger 122, the hanging direction of the flexible section 12a hanging down due to its own weight is parallel to the vertical direction Z.

[0111] In this embodiment, two endoscope sterilizers 121 and two hangers 122 are provided for one endoscope cart 123, but the number of endoscope sterilizers 121 and hangers 122 is not limited to two, and an appropriate number of hangers 30 may be provided depending on the purpose of use of the endoscope 12 and the dimensions of the endoscope cart 123 and hanger stand 31. When the operation section 12b of the endoscope sterilizer 121 is held by the hanger 122, the flexible section 12a is positioned in a hanging direction in which it hangs down due to its own weight.

[0112] The endoscope cart 123 has a hanger 122 attached to the right-hand support 23, which is integral with the endoscope sterilizer 121, and a hanger 30 similar to that of the endoscope cart 20 in the first embodiment attached to the left-hand support 24 via a hanger stand 31. Other than these, the endoscope cart 123 is similar in configuration to the endoscope cart 20 in the first embodiment, and the same parts are designated by the same reference numerals and will not be described again.

[0113] 22, the endoscope sterilizer 121 includes a housing section 125, a sterilization light source 126, and a power switch 127. The housing section 125 includes at least a peripheral surface section 128 extending in the up-down direction Z, and houses the flexible section 12a of the endoscope 12. The endoscope sterilizer 121 also includes a bent section 129 that smoothly connects the hanger 122 and the peripheral surface section 128. The power switch 127 is provided on the side of the bent section 129, for example.

[0114] The peripheral surface portion 128 is gutter-shaped with a groove 128A (see Figure 23) formed along the vertical direction Z, and when the operating portion 12b is held by the hanger 122, it faces the outer peripheral surface of the flexible portion 12a that hangs down due to its own weight.

[0115] Sterilization light source 126 is arranged inside groove 128A of peripheral surface portion 128 along the up-down direction Z. Sterilization light source 126 irradiates flexible portion 12a with sterilizing light. Note that, although multiple sterilization light sources 126 are provided for one peripheral surface portion 128 in FIGS. 22 and 23 , this is not limiting, and only one long sterilization light source 126 may be provided for one peripheral surface portion 128. Note that, although an ultraviolet light source similar to sterilization light sources 42 and 43 in the first embodiment is used as sterilization light source 126, it is preferable to use a cylindrical excimer lamp as sterilization light source 126.

[0116] The operation of the above configuration will now be described. As shown in Figure 23, when the operating section 12b of the endoscope 12 is held by the hanger 122 before observation with the endoscope 12, the endoscope sterilizer 121 is positioned in a direction in which the flexible section 12a hangs down due to its own weight, as described above, so that the user, i.e., a doctor or medical staff member, can easily insert the flexible section 12a into the groove 128A of the endoscope sterilizer 121. The doctor or medical staff member then operates the power switch 127 of the endoscope sterilizer 121 to turn on the power. The entire flexible section 12a is reliably sterilized by irradiation with ultraviolet light, thereby achieving a high sterilization effect.

[0117] The used endoscope 12 has the operation part 12b held by a hanger 30 attached to the left support 24. R The hanger 30 is provided at a distance from the endoscope sterilizer 121 mounted on the right-hand support 23, so that the endoscope sterilizer 121 is kept clean and does not become contaminated with body fluids or the like.

[0118] [Fourth Modification] In the seventh embodiment, the entire endoscope sterilizer 121 is formed in a gutter shape, but this is not limiting. As shown in Fig. 24, the upper part of the endoscope sterilizer 121 may be formed in a gutter shape and the lower part in a cylindrical shape. Specifically, the lower part 128B (the part in which at least the tip part 12d is housed) of the peripheral part 128 of the endoscope sterilizer 121 is formed in a cylindrical shape with a square cross section, and the flexible part 12a can be inserted into it. This makes it possible to cover the outer peripheral surface of the flexible part 12a, thereby further improving the sterilization effect. The lower part 128B is not limited to a cylindrical shape with a square cross section, and may be formed in a cylindrical shape with the flexible part 12a inserted into it. Enter Any shape can be used as long as it can be used, for example, a cylindrical shape.

[0119] In the above-described embodiments and their modifications, an endoscope cart is exemplified as an endoscope holding device, but the endoscope holding device is not limited to this, and may be an endoscope stand provided with a hanger for holding the operation unit of the endoscope. Furthermore, in the above-described embodiments and their modifications, the reflective material provided inside the storage section may be, for example, a metal sheet with a mirror-finished surface or a member with a plated surface.

[0120] Furthermore, in the above embodiment, the endoscope 12 to be combined with the endoscope sterilization device or endoscope sterilization system of the present invention is not specified, but it may be any endoscope equipped with an insertion section, such as a bronchoscope, an upper gastrointestinal endoscope, or a lower gastrointestinal endoscope.

[0121] In each of the above embodiments, the hardware structure of a processing unit that executes various processes, such as a light source control unit, is various processors as follows: The various processors include a CPU (Central Processing Unit), which is a general-purpose processor that executes software (programs) and functions as various processing units, a GPU (Graphical Processing Unit), a programmable logic device (PLD), which is a processor whose circuit configuration can be changed after manufacturing, such as an FPGA (Field Programmable Gate Array), and a dedicated electric circuit, which is a processor having a circuit configuration designed specifically for executing various processes.

[0122] A single processing unit may be configured with one of these various processors, or may be configured with a combination of two or more processors of the same or different types (for example, multiple FPGAs, a combination of a CPU and an FPGA, or a combination of a CPU and a GPU). Also, multiple processing units may be configured with a single processor. Examples of multiple processing units configured with a single processor include, first, a configuration in which one or more CPUs and software are combined to form a single processor, as typified by client or server computers, and this processor functions as multiple processing units. Second, a configuration in which a processor is used to realize the functions of an entire system including multiple processing units on a single IC (Integrated Circuit) chip, as typified by a system-on-chip (SoC). In this way, the various processing units are configured with one or more of the above-mentioned various processors as a hardware structure.

[0123] Furthermore, the hardware structure of these various processors is, more specifically, an electric circuit in the form of a combination of circuit elements such as semiconductor elements. [Explanation of symbols]

[0124] 10 Endoscopy System 12 Endoscopy 12a Insertion part 12b Operation section 12c curved section 12d Tip 12e Angle Knob 12f code 12g measuring scale 14 Light source device 15 Processor unit 15A Operation Panel 15B Operation switch 16 Display 18 Endoscope sterilizer 20 Endoscopy Cart 21 Frame base 22 Caster 22a Stop lever 23, 24 posts 26 Top plate 26a Toride 26b Drawer section 27, 28 Shelves 29 Stand 30 hanger 31 Hanger Stand 31a, 31b Stand members 41 Case 41A opening 41B Peripheral part 41C Rear section 41D Sterilization space 42, 43 Light source for sterilization 44 Light source control unit 45 Power switch 50 Endoscope sterilizer 51 Case 51A opening 51B Peripheral part 51C Bottom part 51D Sterilization space 52, 53 Light source for sterilization 54 Power switch 60 Endoscope sterilizer 61 Case 61A opening 61B Peripheral part 61C Bottom part 61D Sterilization space 62, 63 Light source for sterilization 64 Lid member 65 Power switch 64A Rotating shaft 66 Insertion part holding part 66a opening 66b Notch 67 Insertion amount detection unit 71 Scale detection sensor 75 Endoscope sterilizer 76 Case 76A opening 76B Peripheral part 76C Bottom part 76D fitting hole 76E Reflective material 77 Light source unit 78 Sterilization light source 79 Fittings 80 Endoscope sterilizer 81 Slide mechanism 82 Insertion part 83 Sterilization light source 84 Sterilization light source 85 Mounting piece 85A Recess 86 Power switch 87 Peripheral part 87A Straight section 87B Sterilization space 88 Fitting member 88A mating part 88B Exit Stopper 89 Slide groove 91 Speed ​​damping mechanism 100 Endoscope sterilizer 101 Insertion part 102, 103 Light source for sterilization 104 Gripping part 104A Recess 105 Power switch 106 Peripheral part 106A Straight section 106B Sterilization space 110 Endoscope sterilizer 111 Sterilizer body 112 Cover member 112A Straight section 112B convex part 113 Storage Unit 113A opening 113B Peripheral part 113C Rear section 115 Rotational Axis 120 Endoscope Sterilization System 121 Endoscope sterilizer 122 Hanger 122A Notch 123 Endoscopy Cart 125 Storage unit 126 Sterilization light source 127 power source 128 weeks facial 128A Ditch 128B lower part 129 Flexion part CL central axis Physician D X Forward and backward directions Y (left and right directions) Z (Up / Down Direction)

Claims

1. An endoscope sterilization device that irradiates an insertion portion of an endoscope with sterilizing light, a cylindrical storage section having an opening, a peripheral surface, and a bottom surface, wherein at least a portion of the insertion section can be inserted through the opening; a sterilization light source provided in the storage section and irradiating the insertion section inserted into the storage section with sterilization light; an insertion amount detection unit that detects an insertion amount of the insertion portion into the accommodation portion; An endoscope sterilization device that starts irradiating the sterilizing light when the insertion amount is equal to or greater than a certain value, and stops irradiating the sterilizing light when the insertion amount is less than the certain value.

2. The endoscope sterilizer according to claim 1, further comprising an insertion portion holding portion for holding the insertion portion inserted into the accommodation portion.

3. An endoscope sterilization system that irradiates an insertion portion of an endoscope with sterilizing light, an endoscope sterilization device including: a housing portion that is a cylindrical container with a bottom and has an opening, a peripheral surface, and a bottom surface, into which at least a part of an insertion portion can be inserted through the opening; and a sterilization light source that is provided in the housing portion and that irradiates sterilizing light onto the insertion portion inserted into the housing portion; an endoscope holding device provided with a hanger for holding an operation section of an endoscope connected to the insertion section, the endoscope sterilizer comprises a housing having the opening, the peripheral surface, and the bottom surface, and a light source unit having the sterilizing light source and a fitting member that holds the sterilizing light source; the light source unit is fixed to the endoscope holding device, The endoscope sterilization system allows the endoscope sterilization device and the endoscope holding device to be detachable by fitting or not fitting the fitting member into the housing.

4. 4. An endoscope sterilization system according to claim 3, wherein the endoscope holding device is an endoscope stand or an endoscope cart.

5. 5. The endoscope sterilization system according to claim 3, wherein the opening is open in a direction intersecting a hanging direction of the insertion section that hangs down due to its own weight when the operation section is held by the hanger.

6. An endoscope sterilization device that irradiates an insertion portion of an endoscope with sterilizing light, an insertion portion having a peripheral surface portion facing the insertion portion and capable of being inserted by the insertion portion; a sterilization light source that irradiates the insertion portion inserted into the insertion portion with sterilization light; a gripping portion integrally formed with the insertion portion, the insertion portion is formed in a U-shape and has a peripheral surface portion branched into two from the grip portion so that the insertion portion can be inserted therethrough; The endoscopic sterilization device has one branched peripheral surface portion on which the sterilization light source is provided, and the other branched peripheral surface portion on which the sterilization light source is provided faces the sterilization light source provided on the branched peripheral surface portion.

7. 7. An endoscope sterilizer according to claim 6, wherein the light emitted by the sterilizing light source is ultraviolet light having a central wavelength of 222 nm.

8. 8. The endoscopic sterilizer according to claim 7, wherein the sterilizing light source is an excimer lamp or an LED.

9. An endoscope sterilization system that irradiates an insertion portion of an endoscope with sterilizing light, an endoscope holding device provided with a hanger for holding an operation unit of an endoscope connected to the insertion unit; an endoscope sterilization device including an insertion section having a peripheral surface facing the insertion section and capable of being inserted by the insertion section, and a sterilization light source that irradiates sterilizing light onto the insertion section inserted into the insertion section; and a slide mechanism that holds the endoscope sterilization device so that it can slide when the operating section is held by the hanger, with the insertion section inserted into the insertion section along the hanging direction of the insertion section that hangs down due to its own weight.

10. 10. An endoscope sterilization system according to claim 9, wherein the slide mechanism includes a speed attenuation mechanism for attenuating the speed at which the endoscope sterilization device moves.

11. 11. An endoscope sterilization system according to claim 9, wherein the endoscope holding device is an endoscope stand or an endoscope cart.

12. An endoscope sterilization device that irradiates the insertion portion of an endoscope with sterilizing light, an insertion portion having a peripheral surface portion facing the insertion portion and capable of being inserted by the insertion portion; a sterilization light source that irradiates the insertion portion inserted into the insertion portion with sterilization light; a gripping portion integrally formed with the insertion portion; a cover member detachably provided on the insertion portion, When the cover member and the insertion portion are integrated, the endoscopic sterilization device forms a bottomed tubular container having an opening, a peripheral surface, and a bottom surface, and forms a storage portion into which at least a portion of the insertion portion can be inserted through the opening.

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