JP6116381B2 - Endoscope system - Google Patents

Description

  The present invention relates to an endoscope system in which two or more types of adapters can be individually attached and detached at the distal end in the insertion direction of an insertion portion of an endoscope.

  As is well known, endoscopes are widely used in the medical field and the industrial field. Endoscopes used in the medical field are treatments in which an elongated insertion portion is inserted into a body cavity that is a subject, thereby observing an organ in the body cavity or inserting it into an insertion channel of a treatment instrument as necessary. Various kinds of treatments can be performed using tools.

  Endoscopes used in the industrial field are used to observe wounds and corrosion in a subject and perform various treatments by inserting a long and thin insertion portion into a jet engine or a pipe of a factory. Etc. can be performed.

  An imaging unit including an objective lens unit and an imaging element such as a CCD is provided in the distal end portion located on the distal end side in the insertion direction of the insertion portion of the endoscope (hereinafter simply referred to as the distal end side). A configuration in which an illumination unit or the like for illuminating the inside of a subject is provided is well known.

  Further, a configuration in which the objective lens unit and the illumination unit are provided in a known optical adapter (hereinafter simply referred to as an adapter) that is detachably attached to the distal end portion of the insertion portion is also well known.

  If a light source such as a light emitting element is provided in the adapter or the distal end portion of the insertion portion, it is difficult to reduce the diameter of the adapter or the distal end portion. A light guide that guides the illuminated illumination light to the distal end surface located at the distal end of the distal end in the insertion direction (hereinafter simply referred to as the distal end) is inserted, and the illumination light emitted from the distal end of the light guide is inserted into the adapter. A configuration in which an illumination optical system that receives incident light and supplies illumination light into the subject is also well known.

  Further, as the adapter, a direct-view adapter for observing the front of the insertion portion in the insertion direction (hereinafter simply referred to as the front) and a side-view adapter for observing a side different from the insertion direction are well known. Each adapter is properly used according to the observation object and application.

  Further, in each of the direct-view adapter and the side-view adapter, there are a plurality of adapters having different viewing angles, and these are also properly used according to the observation object and application. Therefore, a plurality of types of adapters can be individually attached to and detached from the tip portion.

  Here, when a direct-view adapter having an objective lens having a viewing angle of 160 °, for example, is attached to the tip portion to observe the inside of the subject and a wound or the like is found in the subject, If you accidentally record the adapter you used, for example, if you mistakenly record that you used a side-view adapter with an objective lens with a viewing angle of 100 °, When performing a re-examination, a side-view adapter having an objective lens having a viewing angle of 100 ° is attached to the tip, so that even if observation is performed under the same conditions as the previous time, the same observation state as the previous time can be reproduced. There was a problem that it could not be done.

  In view of such a problem, in Patent Document 1, an identification resistor having a different resistance value is provided for each adapter in a plurality of adapters detachably attached to the tip, and provided in the tip when the adapter is attached to the tip. When the identification resistor comes in contact with the resistance identification terminal, the CPU electrically connected to the terminal reads the resistance value in the control unit to which the endoscope is connected, and the resistance value is attached to the tip portion. A configuration is disclosed that automatically detects the type of adapter used and records the type of adapter used in the recording medium.

  Therefore, since the operator can easily confirm the type of the adapter used last time from the recording medium, the same observation state as the previous time can be easily reproduced.

JP 2007-37565 A

  By the way, the objective lens unit provided in the adapter, the lens used in the illumination optical system, and the illumination light guide member have higher performance as the diameter becomes larger.

  However, when the identification resistor is provided in a limited space in the adapter as in the configuration disclosed in Patent Document 1, the objective lens unit, the illumination optical system, and the illumination light guide member have large diameters. There is a problem that the performance of the endoscope cannot be used and the diameter of the lens provided in the adapter is increased, so that the adapter is increased in diameter.

  In addition to the imaging unit and light guide, various channels and the like are provided in the distal end portion. Therefore, if an identification terminal is provided in the distal end portion, a large-diameter lens cannot be used in the imaging unit like the adapter. In addition, there has been a problem that the imaging device has to be reduced in size, and the performance of the endoscope is lowered, or the tip portion is enlarged in diameter to secure a terminal arrangement space.

  Therefore, there has been a demand for a configuration that can detect the type of adapter attached to the tip without increasing the diameter of the adapter and the tip. Furthermore, not only the type of adapter, but also a configuration capable of detecting the adapter mounting time or the mounting / dismounting state with respect to the tip portion has been desired.

  The present invention has been made in view of the above circumstances, and does not increase the diameter of the distal end portion and reduces the performance of the endoscope, and at least the types of adapters attached to the distal end portion of the insertion portion. It is an object of the present invention to provide an endoscope system having a configuration capable of detecting the above.

  In order to achieve the above object, an endoscope system according to an aspect of the present invention is an endoscope system in which two or more types of adapters can be individually attached and detached at the distal end in the insertion direction of the insertion portion of the endoscope. A light source provided in any one of the operation portion of the endoscope to which the proximal end of the insertion portion of the insertion portion is connected, and the apparatus main body to which the endoscope is connected, and at least the insertion A first light guide member that guides illumination light emitted from the light source to the distal end of the insertion portion, inserted in the portion, and attached to the distal end of the insertion portion provided in each adapter The illumination light irradiated from the distal end and incident illumination optical system for supplying the illumination light into the subject, and the distal end of the insertion portion provided in each adapter. The illumination leaked from the illumination optical system when mounted And a second guide that guides return light that is inserted through at least the insertion member and is transmitted through or reflected from the identification member. An optical member, a detection member that is provided inside the operation unit or the apparatus main body, detects the return light guided by the second light guide member, and is provided inside the operation unit or the apparatus main body. A storage unit having a table in which the type of the adapter associated with the type of the identification member is provided; and the detection unit provided in the operation unit or the apparatus main body. A control unit that detects the type of the identification member from the return light and collates with the table of the storage unit to detect at least the type of the adapter.

  According to the present invention, an endoscope having a configuration capable of detecting at least the type of adapter attached to the distal end portion without increasing the diameter of the adapter and the distal end portion and without reducing the performance of the endoscope. A system can be provided.

The perspective view of the endoscope system which shows 1st Embodiment. The partial perspective view which expands and shows the front end side of the insertion part of FIG. 1 is an enlarged perspective view of the adapter shown in FIG. 1 viewed from the direction III in FIG. 2 is a cross-sectional view taken along line IV-IV in FIG. 2 when the adapter of FIG. 3 is attached to the tip of FIG. 2 is a cross-sectional view taken along the line V-V in FIG. 2 when the adapter of FIG. 3 is attached to the tip of FIG. The figure which shows schematically the structure for detecting the kind of adapter in the endoscope system of FIG. 1 in the state by which the adapter was mounted | worn by the front-end | tip part. The figure which shows an example of the table which the memory | storage part of FIG. 6 has. The fragmentary perspective view which expands and shows the front end side of the insertion part of the endoscope in the endoscope system of 2nd Embodiment. The perspective view which expands and shows the adapter in the endoscope system of 2nd Embodiment. FIG. 8 is a cross-sectional view taken along line XX in FIG. 8 when the adapter of FIG. 9 is attached to the tip of FIG. The fragmentary perspective view which expands and shows the modification of the front end side of the insertion part of the endoscope in the endoscope system of 1st, 2nd embodiment. FIG. 11 is a diagram showing only the integrated light guide of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, the endoscope system will be described by taking an industrial endoscope system as an example.

(First embodiment)
FIG. 1 is a perspective view of an endoscope system showing the present embodiment.
As shown in FIG. 1, the endoscope system 100 includes a main part that includes an endoscope 20, an apparatus main body 50 connected to the endoscope 20, and two or more types of adapters 1. Hereinafter, in order to simplify the drawings and description, the adapter 1 is common to all two or more types of adapters.

  The endoscope 20 has an elongated and flexible insertion portion 10 and an operation portion having a grip portion 15h connected to a proximal end (hereinafter simply referred to as a proximal end) of the insertion portion 10 in the insertion direction S. 15 and a universal cord 17 extending from the gripping part 15h of the operation part 15 constitutes a main part.

  In order from the distal end side of the insertion portion 10 to the insertion portion 10, two or more types of adapters 1 can be individually attached and detached, and a joystick 15j provided in the operation portion 15 is operated, for example, up, down, left and right 4 A bending portion 12 that can be bent in a direction and a long flexible tube portion 13 formed of a flexible member are connected to each other, and a proximal end of the flexible tube portion 13 is connected to the operation portion 15. ing.

  In addition to the joystick 15j, the operation unit 15 is provided with various switches (not shown) for instructing an imaging operation in an imaging unit 25 (see FIG. 4), which will be described later, provided in the distal end portion 11.

  The apparatus main body 50 has, for example, a box shape, and an endoscope image captured by the imaging unit 25 (see FIG. 4) of the endoscope 20 is placed on an exterior housing 50g configured by, for example, magnesium die casting. A monitor 55, which is a notification unit to be displayed, is fixed so as to be openable and closable with respect to the exterior housing 50g, for example. The monitor 55 may be detachable from the outer casing 50g, or may be fixed with the monitor surface exposed at all times.

  Next, the structure of an adapter and the structure of a front-end | tip part are demonstrated using FIGS. 2 is an enlarged partial perspective view showing the distal end side of the insertion portion of FIG. 1, and FIG. 3 is an enlarged perspective view of the adapter of FIG. 1 viewed from the direction III in FIG.

  4 is a cross-sectional view taken along the line IV-IV in FIG. 2 when the adapter of FIG. 3 is attached to the tip of FIG. 2, and FIG. 5 is a diagram of the adapter of FIG. It is sectional drawing along the VV line | wire in FIG. 2 at the time of mounting | wearing.

  As shown in FIG. 4, the tip portion 11 includes a tip portion main body 11p formed in a substantially columnar shape. As shown in FIGS. 2 and 4, a protrusion 11 d that protrudes forward from the tip surface 11 ps is formed on the tip surface 11 ps of the tip body 11 p.

  When the adapter 1 is mounted on the distal end portion 11, the convex portion 11 d is fitted into a concave portion 1 d formed on a base end surface of an adapter main body 1 p described later of the adapter 1, thereby positioning the adapter 1 with respect to the distal end portion 11. It is a member which performs.

  As shown in FIG. 4, the distal end portion 11 includes a lens unit 16 for observing the inside of the subject, and an imaging element 22 such as a CCD or C-MOS for imaging an observation site in the subject. An imaging unit 25 is provided.

  Specifically, the lens unit 16 includes a plurality of lenses 16a and 16b, and is fixed in the convex portion 11d so that the lens 16a is exposed to the protruding surface 11ds. Note that the number of lenses constituting the lens unit 16 is not limited to two.

  The imaging element 22 is fixed at the imaging position of the lens unit 16 in the distal end main body 11p. A signal line 21 extends from the image sensor 22 to the rear in the insertion direction S (hereinafter simply referred to as the rear), and the signal line 21 is provided in the insertion unit 10, the operation unit 15, and the universal cord 17. The extended end is connected to an image processing unit (not shown) in the apparatus main body 50.

  As shown in FIGS. 2 and 4, the first light guide member inserted through the universal cord 17, the operation unit 15, and the insertion unit 10, as shown in FIG. The front end side of the light guide 30 is fixed so that the front end of the light guide 30 is exposed to the front end surface 11 ps.

  The light guide 30 guides illumination light emitted from a light source 52 (see FIG. 6), which will be described later, provided in the apparatus main body 50 to the distal end of the insertion portion 10, that is, the distal end surface 11ps of the distal end portion 11. .

  Further, as shown in FIGS. 2 and 5, the second light guide member inserted into the distal end main body 11 p and into the universal cord 17, the operation portion 15, and the insertion portion 10 as shown in FIG. 6 described later. These optical fibers 31 and 32 are fixed so that the tip ends of the optical fibers 31 and 32 are exposed to the tip surface 11 ps.

  As shown in FIG. 2, a concave groove 11dk is formed on the side surface of the convex portion 11d facing the front end of the light guide 30, and the front ends of the optical fibers 31 and 32 are recessed on the front end surface 11ps. It is exposed to a space 11dh (see FIG. 4) in the groove 11dk. Further, the optical fibers 31 and 32 are formed with a smaller diameter than the light guide 30. Specifically, it has a very small diameter of 1 mm or less.

  The optical fibers 31 and 32 detect the colored return light transmitted through the coloring member 5 (see FIG. 4), which will be described later, into the apparatus main body 50 via the insertion unit 10, the operation unit 15, and the universal cord 17. The light is guided to 53 (see FIG. 6).

  As shown in FIG. 4, the adapter 1 includes an adapter main body 1p formed in a substantially columnar shape.

  As shown in FIGS. 3 and 4, on the base end surface of the adapter main body 1p, when the adapter 1 is attached to the tip end portion 11, the adapter body 1p is moved forward from the base end surface along the insertion direction S to a position facing the convex portion 11d. A recessed portion 1d formed in a recessed manner is formed.

  The concave portion 1d is a portion into which the convex portion 11d is fitted as described above when the adapter 1 is attached to the distal end portion 11.

  Further, in the adapter main body 1p, the objective lens unit 3 for observing the inside of the subject constituted by the lenses 3a, 3b, 3c is positioned at the position overlapping the concave portion 1d along the insertion direction S, and the lens 3a is the tip of the adapter 1. It is fixed so as to be exposed to the surface 1s. The number of lenses constituting the objective lens unit 3 is not limited to three.

  Therefore, when the adapter 1 is attached to the distal end portion 11, the observation site in the subject is imaged by the imaging element 22 via the objective lens unit 3 and the lens unit 16.

  Further, in the adapter main body 1p, when the adapter 1 is mounted on the distal end portion 11, the elongated rod lens 2r along the insertion direction S and the illumination lens 2t are disposed at a position facing the distal end of the light guide 30. The configured illumination optical system 2 is fixed so that the illumination lens 2t is exposed to the tip surface 1s.

  The illumination optical system 2 receives illumination light irradiated from the tip of the light guide 30 when the adapter 1 is attached to the tip 11 and supplies illumination light to the subject. Specifically, the illumination lens 2t irradiates the subject with an enlarged diameter of illumination light, and the rod lens 2r guides the illumination light emitted from the tip of the light guide 30 to the illumination lens 2t. To do.

  Further, in the adapter main body 1p, when the adapter 1 is attached to the distal end portion 11, the types of the adapters 1 are different from each other at the outer peripheral surface 2rg of the rod lens 2r facing the space 11dh in the concave groove 11dk. Specifically, a thin plate-like coloring member 5 which is an identification member having a different color for each of the plurality of adapters 1 is fixed.

  The coloring member 5 is composed of, for example, a light-transmitting color filter, and the color is different for each of the plurality of adapters 1.

  Further, the coloring member 5 is provided when the adapter 1 is mounted on the distal end portion 11 and the illumination light irradiated from the distal end of the light guide 30 enters the illumination optical system 2 and is irradiated into the subject from the illumination lens 2t. The illumination light leaked from the rod lens 2r is a member that is irradiated.

  The illumination light leaking from the rod lens 2r passes through the coloring member 5 and is colored, and then enters the space 11dh in the concave groove 11dk, and then the optical fibers 31 and 32 exposed to the tip surface 11ps. The light enters the optical fibers 31 and 32 from the tip of the optical fiber.

  Next, an internal structure of the apparatus main body 50 that supplies illumination light to the light guide 30 and detects return light from the optical fibers 31 and 32 to detect the type of adapter will be described with reference to FIGS. explain.

  6 is a diagram schematically showing a configuration for detecting the type of adapter in the endoscope system of FIG. 1 in a state where the adapter is attached to the distal end portion, and FIG. 7 is provided in the storage unit of FIG. It is a figure which shows an example of a table.

  As shown in FIG. 6, the interior of the apparatus main body 50 covered with the outer casing 50 g includes a control unit 51, a light source 52, a detection member 53, a storage unit 54, a monitor 55, and a storage unit 56. Is provided.

  The light source 52 is positioned to face the base end of the light guide 30, and causes illumination light to enter the light guide 30 through drive control of the control unit 51 through the base end.

  The detection member 53 is composed of a light receiving element such as an optical wavelength analyzing element, for example, a color photodiode, and detects colored return light guided by the optical fibers 31 and 32.

  The storage unit 54 includes a table 54t in which the types of the plurality of coloring members 5, that is, the types of adapters 1 (adapter A, B, C, D,...) Associated with each color are stored as shown in FIG. In addition, the type of the adapter 1 detected by the control unit 51 is stored, and further, the mounting time of the adapter 1 and the loading / unloading state of the adapter 1 are stored.

  The storage unit 56 stores the type of the adapter 1 detected by the control unit 51, and further stores the mounting time of the adapter 1 and the loading / unloading state of the adapter 1.

  The controller 51 detects the type of the colored member 5 from the return light detected by the detection member 53, that is, the color of the colored member 5, matches the table 54t of the storage unit 54, and is mounted on the distal end portion 11. Is to detect the type of.

  Further, the control unit 51 stores the detected type of the adapter 1 in the storage unit 54 or the storage unit 56 and performs operation control for displaying the detected type of the adapter 1 on the monitor 55 to the user. Do. The notification of the type of the adapter 1 to the user is not limited to display, and may be sound or the like.

  Further, the control unit 51 may perform the detection operation of the type of the adapter 1 every set time.

  Note that the control unit 51 detects the color of the coloring member 5 from the return light detected by the detection member 53 and collates it with the table 54t of the storage unit 54, whereby the type of the adapter 1 attached to the distal end portion 11 is determined. In addition, the attachment / detachment state and attachment time of the adapter 1 with respect to the distal end portion 11 may be detected.

  Further, the control unit 51 saves the detected attachment / detachment state and attachment time of the adapter 1 in the storage unit 54 or the storage unit 56, and also notifies the user of the attachment / detachment state and attachment time of the adapter 1 detected by the monitor 55. Operation control for performing display to be notified may be performed. The notification of the attachment / detachment state and the attachment time of the adapter 1 to the user is not limited to the display, and may be sound or the like.

  Further, the control unit 51 may perform an operation for detecting the attachment / detachment state and the attachment time of the adapter 1 every set time.

  If the color of the detected coloring member 5 is not on the table 54t, the control unit 51 detects that the adapter 1 is not attached to the distal end portion 11, and uses a warning display on the monitor 55 or sound. It also controls the operation to notify the person.

  Next, the operation of detecting the type, loading / unloading state, and wearing time of the adapter 1 attached to the distal end portion 11 will be described using the configuration shown in FIGS. The operation when detecting only the type of the adapter 1 is the same as the following, except that the controller 51 does not detect the loading / unloading state and the mounting time.

  First, when the adapter 1 is attached to the distal end portion 11, the control unit 51 drives and controls the light source 52 to emit illumination light from the light source 52. The light source 52 may always emit illumination light.

  As a result, the illumination light is guided from the proximal end of the light guide 30 to the distal end of the light guide 30, emitted from the distal end of the light guide 30, and then enters the rod lens 2 r, and then from the illumination lens 2 t. Irradiated into the subject.

  At this time, the illumination light leaked from the rod lens 2r is irradiated to the coloring member 5 through the space 11dh in the concave groove 11dk, and the colored return light colored by passing through the coloring member 5 is converted into the optical fiber 31. , 32 is incident on the tip.

  The colored return light is guided to the apparatus main body 50 through the optical fibers 31 and 32 and detected by the detection member 53. The two optical fibers are provided as the second light guide member. Even if the optical fiber 31 is bent and the return light cannot be guided to the detection member 53, another optical fiber is provided. This is because the return light can be guided to the detection member 53 by the fiber 32.

  Therefore, the number of optical fibers is not limited to two, and three or more optical fibers may be provided, or one optical fiber may be used in consideration of the fact that return light due to breakage cannot be detected.

  Thereafter, the control unit 51 detects the color of the colored member 5 from the colored return light detected by the detection member 53, and collates with the table 54t of the storage unit 54 shown in FIG. Detect state and wearing time.

  Specifically, when the control unit 51 detects that the color of the coloring member 5 is, for example, blue, the table 54t is checked, and the adapter 1 attached to the distal end portion 11 is the adapter A. To detect.

  The controller 51 detects that the adapter 1 is attached to the tip 11 when the detected color of the coloring member 5 is on the table 54t, and the adapter 1 is detected when the color is not on the table 54t. It is detected that the tip is not attached.

  In addition, the control unit 51 detects the mounting time of the adapter 1 with respect to the distal end portion 11 by detecting the time from when it is detected that the adapter 1 is mounted on the distal end portion 11 until it is detected that the adapter 1 is not mounted. To do.

  In addition, you may perform the detection of the adapter 1 by the control part 51 in multiple times for every setting time. Further, the control unit 51 detects the type, loading / unloading state, and mounting time of the adapter 1 and then saves them in the storage unit 54 or the storage unit 56 and displays them on the monitor 55 to notify the user. Take control.

  Thus, in the present embodiment, the light source 52 is provided in the apparatus main body 50, and the illumination light emitted from the light source 52 when the adapter 1 is attached to the distal end portion 11 is the light guide 30. It is shown that the object is irradiated through the illumination optical system 2.

  Further, when the adapter 1 is attached to the distal end portion 11, the colored member 5 is irradiated with the illumination light leaking from the rod lens 2 r in the adapter 1, and is colored by passing through the coloring member 5. The light is detected by the detection member 53 in the apparatus main body 50 via the optical fibers 31 and 32, the color of the coloring member 5 is detected by the control unit 51 from the colored return light, and the control unit 51 further includes a storage unit. It is shown that at least the type of the adapter 1 is detected by checking the table 54t of 54.

  According to this, a simple configuration in which the thin plate-like colored member 5 is provided at a position where the illumination light leaks from the rod lens 2r in the adapter 1 and the small-diameter optical fibers 31 and 32 are provided in the endoscope 20 is provided. Thus, since at least the type of the adapter 1 can be detected, it is not necessary to provide a large identification resistor in the adapter 1 in order to detect the type of the adapter 1 as in the prior art. There is no need to provide a contact terminal. Further, since the light source 52 and the detection member 53 are provided in the apparatus main body 50, it is not necessary to provide a light source in the distal end portion 11 or the adapter 1, and it is also necessary to provide the detection member 53 in the distal end portion 11. Absent.

  Therefore, without increasing the diameter of the adapter 1 and the distal end portion 11, the lenses 3 a to 3 c constituting the objective lens unit 3 provided in the adapter 1 and the lens units 16 provided in the distal end portion 11. Since the lenses 16a to 16b having a diameter as large as possible can be used, the performance of the endoscope 20 is improved.

  Furthermore, only a thin plate-like colored member 5 is provided in the adapter 1, only small-diameter fibers 31 and 32 are inserted into the insertion portion 10, and further, a light source 52 and Since the detection member 53 is provided in the apparatus main body 50, the adapter 1 and the distal end portion 11 do not increase in diameter.

  In the present embodiment, the control unit 51 stores the type of the adapter 1 in the storage unit 54 or the storage unit 56. Therefore, when a reexamination is performed at a later date, the user selects the storage unit 54 or the storage unit. If 56 is read, the adapter used for the previous inspection can be easily and accurately recognized, and the same observation state as the previous time can be easily reproduced.

  As described above, the adapter 1 and the distal end portion 11 do not have a large diameter, and at least the type of the adapter 1 attached to the distal end portion 11 can be detected without degrading the performance of the endoscope 20. An endoscope system 100 can be provided.

(Second Embodiment)
FIG. 8 is an enlarged partial perspective view showing the distal end side of the insertion portion of the endoscope in the endoscope system according to the present embodiment, and FIG. 9 is an enlarged view of the adapter in the endoscope system according to the present embodiment. FIG. 10 is a cross-sectional view taken along line XX in FIG. 8 when the adapter of FIG. 9 is attached to the distal end portion of FIG.

  Compared with the endoscope system of the first embodiment shown in FIGS. 1 to 7 described above, the configuration of the endoscope system of the second embodiment is such that the coloring member is formed on the bottom surface of the recess in the adapter. Is different. Therefore, only this difference will be described, the same reference numerals are given to the same components as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIGS. 9 and 10, in the present embodiment, when the adapter 1 is attached to the distal end portion 11, the coloring member 5 ′ is a portion facing the distal end surface 11ps, specifically, the convex portion 11d. A portion facing the protruding surface 11ds, more specifically, the bottom surface 1dr of the recess 1d. The colored member 5 ′ provided on the bottom surface 1dr may be provided by being painted on the bottom surface 1dr, or may be provided by sticking a colored member different from the bottom surface 1dr to the bottom surface 1dr. It does not matter.

  Further, as shown in FIG. 8, in the present embodiment, two concave grooves 11dm are formed on the side surface of the convex portion 11d facing the tip of the light guide 30.

  In each groove 11dm, the distal end side of each optical fiber 31, 32 protruding forward from the distal end surface 11ps is fitted, and the distal end of each optical fiber 31, 32 is exposed to the projecting surface 11ds.

  Other configurations are the same as those in the first embodiment described above.

  In the present embodiment, as shown in FIG. 9, the illumination light leaking from the rod lens 2r is irradiated to the coloring member 5 ′ through the space 11dh in each groove 11dm, and is emitted from the coloring member 5 ′. The reflected light is incident on the tips of the optical fibers 31 and 32 exposed on the protruding surface 11ds. That is, in the present embodiment, the reflected light from the coloring member 5 ′ becomes return light.

  In addition, since the structure and effect | action which detect the kind of other adapter 1, an attachment / detachment state, and attachment time are the same as 1st Embodiment mentioned above, the description is abbreviate | omitted.

  Even with such a configuration, the same effect as that of the first embodiment described above can be obtained, and in the present embodiment, a space for fixing the coloring member to the outer peripheral surface of the rod lens 2r becomes unnecessary. Thus, the adapter 1 can be made smaller than the first embodiment.

  Hereinafter, a modification will be described with reference to FIGS. 11 is an enlarged partial perspective view showing a modification of the distal end side of the insertion portion of the endoscope in the endoscope system of the first and second embodiments, and FIG. 12 is an integrated light guide of FIG. It is a figure which extracts and shows only.

  In the above-described embodiment, the light guide 30 and the optical fibers 31 and 32 are provided separately in the insertion portion 10.

  11 and 12, the light guide 131 that is the first light guide member and the optical fiber 132 that is the second light guide member are integrally formed as an integrated light guide 130. It may be formed.

  The integrated light guide 130 is branched on the base end side in the insertion direction S. As shown in FIG. 12, the base end of the light guide 131 faces the light source 52 and the base of the optical fiber 132 is provided. The end faces the detection member 53.

  The function of the light guide 131 is the same as the function of the light guide 30 described above, and the function of the optical fiber 132 is the same as the functions of the optical fibers 31 and 32 described above.

  According to such a configuration, in the first and second embodiments described above, the light guide 30 and the optical fibers 31 and 32 are inserted into the insertion portion 10 by three operations in the manufacturing process. Although a process is required, in this configuration, workability is improved because the integrated light guide 130 having the functions of the light guide and the optical fiber can be inserted by only one operation.

  Moreover, since the number inserted through the insertion portion 10 is changed from three to one, the diameter of the insertion portion 10 can be reduced. This is because the outer circumference of the light guide 30 and the optical fibers 31 and 32 is usually covered with a tube, so that covering each of the three guides greatly decrements the space in the insertion portion 10, thus increasing the diameter of the insertion portion 10. However, if only one integrated light guide 130 is used, only one tube needs to be covered. Therefore, the space in the insertion portion 10 can be reduced without increasing the diameter of the insertion portion 10. This is because the larger number can be secured by the reduced number.

  Other configurations are the same as those of the first and second embodiments described above.

Hereinafter, another modification will be described.
In the first and second embodiments described above, the identification member is a colored member having a different color for each of the plurality of adapters, and the second light guide member is a colored return from the colored member 5 or 5 ′. It is an optical fiber that guides light to the detection member 53, and the detection member 53 is shown to be composed of a light receiving element such as an optical wavelength analyzing element that detects colored reflected light, for example, a color photodiode.

  In addition, the control unit 51 detects the type of the coloring member 5 from the return light detected by the detection member 53, that is, the color of the coloring member 5, and matches the table 54t of the storage unit 54 to be attached to the distal end portion 11. It was shown that at least the type of adapter 1 was detected.

  Not limited to this, the identification member whose type is different for each of the plurality of adapters may be a member whose shape is different for each of the plurality of adapters instead of the colored member, and the second light guide member is the identification member. The image guides 31 and 32 may transmit the shape of the identification member to the detection member 53 using the reflected light reflected from the light. Further, the detection member 53 detects the shape of the identification member from the reflected light. Alternatively, an image sensor such as a CCD or C-MOS may be used.

  In addition, as a shape of the identification member which changes for every adapter 1, an index | index, a number, a pattern, the shape of adapter itself, etc. are mentioned.

  In addition, the control unit 51 detects the type of the colored member 5 from the return light detected by the detection member 53, that is, the shape of the colored member 5, and compares the detected color with the table 54t of the storage unit 54 and is attached to the distal end portion 11. At least the type of adapter 1 may be detected.

  In this case, the table 54t stores a plurality of types of identification members, that is, types of the adapter 1 associated with each shape.

  The same applies to the case where the controller 51 detects the attachment / detachment state and the attachment time of the adapter 1.

  Even with this configuration, the same effects as those of the first and second embodiments described above can be obtained. Also in this configuration, the integrated light guide shown in FIGS. 11 and 12, that is, a light guide and an image guide integrally formed may be used.

  In the first and second embodiments described above, as shown in FIG. 6, the control unit 51, the light source 52, the detection member 53, the storage unit 54, the monitor 55, and the storage unit 56 are provided in the apparatus main body 50. However, the present invention is not limited to this, and it is needless to say that these may be provided in the operation unit 15.

  In the first and second embodiments described above, an industrial endoscope system has been described as an example. However, it goes without saying that the present invention may be applied to a medical endoscope system. Absent.

DESCRIPTION OF SYMBOLS 1 ... Adapter 1dr ... Bottom face of recessed part 2 ... Illumination optical system 2rg ... Outer peripheral surface of rod lens 5 ... Coloring member (identification member)
5 '... coloring member (identification member)
10 ... Insertion part 11ds ... Projection surface of convex part (tip surface of insertion part)
DESCRIPTION OF SYMBOLS 15 ... Operation part 20 ... Endoscope 30 ... Light guide (1st light guide member)
31: Optical fiber / image guide (second light guide member)
32. Optical fiber / image guide (second light guide member)
DESCRIPTION OF SYMBOLS 50 ... Apparatus main body 51 ... Control part 52 ... Light source 53 ... Detection member (light receiving element) (image sensor)
54 ... Storage unit 54t ... Table 55 ... Monitor (notification unit)
56 ... Another storage unit 100 ... Endoscope system 131 ... Light guide (first light guide member)
132: optical fiber (second light guide member)
S ... Insertion direction

Claims (15)

An endoscope system in which two or more types of adapters are detachable individually at the distal end of the insertion portion of the endoscope,
A light source provided in any one of the operation portion of the endoscope to which the proximal end of the insertion portion in the insertion direction is connected; and the apparatus main body to which the endoscope is connected;
A first light guide member that is inserted into at least the insertion portion and guides illumination light emitted from the light source to the tip of the insertion portion;
An illumination optical system that is provided in each of the adapters and that receives the illumination light irradiated from the distal end and that supplies the illumination light into the subject when attached to the distal end of the insertion portion; ,
An identification member provided in each adapter, when the illumination light leaked from the illumination optical system is applied when attached to the distal end of the insertion portion, and a different type for each of the plurality of adapters,
A second light guide member that is inserted through at least the insertion portion and guides return light that is transmitted through or reflected from the identification member;
A detection member for detecting the return light guided by the second light guide member, provided in the operation unit or the apparatus main body;
A storage unit provided inside the operation unit or the apparatus main body, and having a table in which the type of the adapter associated with the type of the identification member is stored;
The type of the identification member is detected from the return light detected by the detection member provided in the operation unit or the apparatus main body, and at least the type of the adapter is compared with the table of the storage unit. A control unit to detect;
An endoscope system comprising: The identification member is a colored member having a different color for each of the plurality of adapters, and the second light guide member is an optical fiber that guides the colored return light from the color member to the detection member. Yes,
The endoscope system according to claim 1, wherein the detection member is a light receiving element that detects the colored return light.   The endoscope system according to claim 2, wherein the coloring member is fixed to a part of an outer peripheral surface of the illumination optical system.   The endoscope system according to claim 2, wherein the coloring member is configured at a portion facing a distal end surface of the distal end of the insertion portion in each adapter. The identification member has a different shape for each of the plurality of adapters, and the second light guide member guides the shape of the identification member to the detection member using the return light from the identification member. Image guide to
The endoscope system according to claim 1, wherein the detection member is an image sensor that detects a shape of the identification member from the return light.   The endoscope system according to any one of claims 1 to 5, wherein the second light guide member includes a plurality of light guide members.   The endoscope system according to any one of claims 1 to 5, wherein the second light guide member is formed integrally with the first light guide member.   The endoscope system according to claim 1, wherein the control unit stores the detected type of the adapter in the storage unit or a storage unit different from the storage unit. . Further comprising a notification unit for notifying the operator of the type of the detected adapter;
The endoscope system according to any one of claims 1 to 8, wherein the control unit controls the operation of the notification unit after detecting the type of the adapter.   The endoscope system according to claim 1, wherein the control unit performs a detection operation of the type of the adapter every set time.   The control unit detects the type of the identification member from the return light detected by the detection member, collates with the table of the storage unit, and further determines whether the adapter is attached or detached and the adapter installation time. The endoscope system according to any one of claims 1 to 10, wherein the endoscope system is detected.   The endoscope system according to claim 11, wherein the control unit stores the detected mounting time and attachment / detachment state of the adapter in the storage unit or the storage unit different from the storage unit. It further comprises a notification unit for notifying the operator of the detected mounting time and mounting / dismounting status of the adapter,
The endoscope system according to claim 11 or 12, wherein the control unit controls the operation of the notification unit after detecting the mounting time and the mounting / dismounting state of the adapter.   The endoscope system according to any one of claims 11 to 13, wherein the control unit performs an operation of detecting an attachment / detachment state of the adapter and an attachment time of the adapter every set time.   The endoscope system according to any one of claims 11 to 14, wherein the controller detects that the adapter is not attached when the detected identification member is not in the table. .

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