JP5160020B2 - Endoscope device - Google Patents

Description

  The present invention relates to an endoscope apparatus that observes the inside of, for example, a living organ or is used for treatment of an operation site.

  In general, in an endoscopic device, an insertion unit to be inserted into a living organ or the like is attached to the endoscope body, and by operating the operation unit disposed on the endoscope body, Desired treatment is performed. This insertion part is provided with a flexible part with an objective part at the tip, and is detachably assembled to an operation part constituting the endoscope body via a lock cover (see, for example, Patent Document 1). . For example, the insertion unit is inserted into a living organ or the like, illuminates a predetermined part via the objective unit, captures the optical image, converts the optical image into an electrical signal by the imaging unit, and manipulates the electrical signal. It is transmitted to the part side and acquired as a display image.

By the way, after such an endoscope apparatus is used for observation and treatment, for example, the lock cover is removed and the insertion part is separated from the endoscope body, and each part is subjected to cleaning, disinfection, and sterilization processing. It is used for observation and treatment.
JP 2001-258818 A

  However, in the above endoscope apparatus, since the separate lock cover has to be attached / detached each time the insertion portion is attached / detached to / from the endoscope main body, the work is troublesome and the usability is inferior. Have

  The present invention has been made in view of the above circumstances, and is an endoscope apparatus that is easy to use and can be easily and easily attached / detached with a simple configuration, thereby improving usability. The purpose is to provide.

The present invention is inserted into a body cavity, and is connected to a positioning guide portion formed by either one of a plurality of rod-shaped protruding guide portions or a plurality of concave guide receiving portions at the rear end, and an interior body. And an insertion portion provided with an elastically deformable coupling portion surrounding the connection guide portion and the positioning guide portion, and an engagement with the positioning guide portion of the insertion portion so as to be movable and guided in the axial direction. positioning guide portion formed in the other of the projecting guide portions of the plurality of rod-shaped or a plurality of concave guide receiving portion, the connecting portion to be connected to the connection portion of the insertion portion, coupling portion of the insertion portion is to be to be A joint portion that is worn and watertightly coupled and an operation portion that operates the insertion portion are provided, and the positioning guide portion of the insertion portion is engaged with the positioning guide portion to be moved and guided; the connecting portion Connecting portion of the insertion portion is connected to Rutotomoni, endoscopic coupling portion of the insertion portion with respect to the coupling portion and a endoscope body, wherein the insertion portion is coupled in a watertight state Ru is mounted A mirror device was constructed.

  According to the above configuration, when the positioning guide portion is slidably engaged with the positioning guide portion of the endoscope main body, the connecting portion faces the connecting portion of the endoscope main body, and the positioning guide By attaching and moving the part along the positioning guide part of the endoscope main body, mounting of the connection parts is completed. As a result, it is possible to simply and easily perform the attaching / detaching operation of the insertion portion to the endoscope body, and the usability can be improved.

  As described above, according to the present invention, it is possible to provide an endoscope apparatus that is easy to use and can be easily and easily attached and detached with a simple configuration. be able to.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 shows an endoscope apparatus according to a first embodiment of the present invention. An insertion portion 20 to be inserted into an organ (not shown), for example, is attached to and detached from an endoscope main body 10.

  That is, the endoscope body 10 is provided with a connecting portion 100 at its tip as shown in FIGS. 2 and 3, and the tip of the connecting portion 100 has first to third fittings as connecting recesses. Holes 101-103 are provided. The first to third fitting holes 101 to 103 are provided with guide portions 101a to 103a that are inclined narrowly in the depth direction from the opening end. The optical transmission path base 111, the channel base 121, and the connection connector 131 are attached to the base end portions of the first to third fitting holes 101 to 103. The optical transmission path base 111, the channel base 121, and the connection connector 131 are attached to the distal ends of the optical transmission path 11, the channel 12, and the connection cable 13, which are light guide fibers for illumination light transmission, which are interior bodies.

  And in this endoscope main body 10, the concave guide receiving part 105 which constitutes the coupling concave part 104 and the positioning guide part which constitute the coupling mechanism around the first to third fitting holes 101 to 103, A plurality are provided at predetermined intervals.

  The insertion portion 20 is configured by connecting, for example, a distal end portion 201, a bending portion 202, and a flexible tube portion 203 (see FIG. 1), and an optical transmission path 21, a channel 22, and a connection cable 23 are provided as an interior body, A connecting portion 204 is provided at the base end. An optical transmission path base 211, a channel base 221 and a connection connector 231 which are hard members constituting the connection convex portion are provided at the distal end of the connection portion 204 of the insertion portion 20 for optical transmission of the endoscope body 10. The optical transmission path 21, the channel 22, and the connection cable 23 are provided in correspondence with the optical path 111, the channel base 121, and the connection connector 131. Is installed.

  Similarly, in the insertion portion 20, an elastically deformable coupling portion 205 constituting a coupling mechanism and a rod-shaped protruding guide portion 206 constituting a positioning guide portion are opposed to the guide receiving portion 105 of the endoscope body 10. Are provided. The protruding guide part 206 protrudes from the connection part 204 at the tip thereof compared to the tips of the optical transmission path base 211, the channel base 221 and the connection connector 231. Thereby, when the protruding guide part 206 is engaged with the guide receiving part 105 of the endoscope body 10, the insertion part 20 has the optical transmission path base 211, the channel base 221 and the connection connector of the connection part 204. Reference numeral 231 faces each guide portion of the first to third fitting holes of the endoscope body 10.

  Here, when the insertion portion 20 is pushed in the direction of the endoscope body 10, the protruding guide portion 206 is guided by the guide receiving portion 105 of the endoscope body 10 and moved in the same direction. 211, the channel cap 221 and the connection connector 231 are reliably inserted into the first to third fitting holes 101 to 103 of the endoscope body 10 through the guide portions 101a to 103a, and are used for the optical transmission path. It is connected to the base 111, the channel base 121 and the connection connector 131. At the same time, the insertion portion 20 is mounted in a state where the coupling portion 205 is elastically engaged with the coupling recess 104 of the endoscope body 10 by its elastic force and is positioned and coupled to the endoscope body 10 (see FIG. 3). . The coupling portion 205 may be hard and the coupling portion 205 and the coupling recess 104 may be screwed together.

  In addition, the endoscope body 10 is provided with an operation unit 1, such as a bending lever, which can be operated, and the operation unit 1 allows the bending unit of the insertion unit 20 attached to the connection unit to be operated. A bending operation of 202, a function switching operation of the insertion unit 20, and the like are performed. The light guide connector 3 is connected to the proximal end of the endoscope body 10 via the universal cord 2. The light guide connector 3 is provided with a light input unit 4, and the light input unit 4 is connected to a light source (not shown). A video connector 5 is connected to the light guide connector 3 via a video cable 6, and the video connector 5 is connected to a video processor (not shown).

  In the above configuration, when the insertion portion 20 is mounted on the endoscope main body 10, the insertion portion 20 inserts the tip of the protruding guide portion 206 into the guide receiving portion 105 of the endoscope main body 10. The base 211, the channel base 221 and the connection connector 231 are opposed to the guide portions 101a to 103a of the first to third fitting holes 101 to 103 of the endoscope body 10 (see FIG. 2). When the protruding guide portion 206 is pushed into the guide receiving portion 105 of the endoscope main body 10, the insertion portion 20 has the optical transmission path base 211, the channel base 221, and the connection connector 231 connected to the endoscope main body 10. The first through third fitting holes 101 to 103 are moved through the guide portions 101 a to 103 a and connected to the optical transmission path base 111, the channel base 121 and the connection connector 131.

  At this time, the insertion portion 20 is inserted into the plurality of guide receiving portions 105 of the endoscope body 10 so that the rotation of the insertion portion 20 with respect to the endoscope body 10 is restricted, and a desired rotation position is obtained. Is retained. The optical transmission path base 211, the channel base 221, and the connection connector 231 of the insertion part 20 are guided by the guide parts 101 a to 101-103 with respect to the first to third fitting holes 101 to 103 of the endoscope body 10. Even in the case where the position shift is caused by the action of 103a, the first guide hole 101 to the third fit hole 101 to 103 can be guided and surely enter.

  In a state where the optical transmission path base 211, the channel base 221 and the connection connector 231 of the insertion portion 20 are connected and coupled to the optical transmission path base 111, the channel base 121 and the connection connector 131 of the endoscope body 10, The insertion portion 20 is mounted by the coupling portion 205 being elastically engaged with the coupling concave portion 104 of the endoscope main body 10 by its elastic force and positioned and coupled to the endoscope main body 10 (see FIG. 3).

  As described above, in the endoscope apparatus, the protruding guide portion 206 is provided in the insertion portion 20 so as to protrude from the optical transmission path base 211, the channel base 221 and the connection connector 231, and the endoscope body 10 is provided. The guide receiving portion 105 is arranged corresponding to the protruding guide portion 206, and the protruding guide portion 206 is guided by the guide receiving portion 105 and the insertion portion 20 is moved, whereby the optical transmission path base 211, channel The base 221 and the connection connector 231 are configured to be attached to the optical transmission path base 111, the channel base 121 and the connection connector 131 of the endoscope body 10.

  According to this, the protruding guide portion 206 of the insertion portion 20 is moved closer to the guide receiving portion 105 of the endoscope body 10 and moved so that the optical transmission path base 211, the channel base 221 and the connection connector are connected. 231 includes a mounting guide structure mounted on the optical transmission path base 111, the channel base 121, and the connection connector 131 disposed in the first to third fitting holes 101 to 103 of the endoscope body 10. The insertion / removal operation of the insertion portion 20 to the endoscope main body 10 can be performed easily and easily, and the usability can be improved.

  In the above embodiment, as the connection structure, the endoscope body 10 is provided with the first to third fitting holes 101 to 103, and the optical transmission path base 211, the channel base 221 and the insertion part 20 are provided. The case where the connecting connector 231 is protruded and arranged to be attached to each other has been described. However, the present invention is not limited to this, and a fitting hole is provided in the connecting portion 204 of the insertion portion 20 so that the endoscope main body is provided. In addition, the optical transmission path base 111, the channel base 121, and the connection connector 131 may be arranged to protrude.

(Second Embodiment))
FIG. 4 shows a main part of an endoscope apparatus according to the second embodiment of the present invention. However, in FIG. 4, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, in the second embodiment, the positioning guide portion disposed in the insertion portion 20 is similarly provided with the projection guide portion 206a protruding in a ring shape, the optical transmission path base 211, the channel base 221 and the connection connector. The positioning guide part formed by projecting as compared with H.231 and arranged in the endoscope body 10 is configured by arranging a guide receiving part 105a having a ring-shaped groove shape.

  The protrusion guide portion 206a is provided with an engagement convex portion 206b that is a rotation restricting portion (see FIG. 5), and the guide receiving portion 105a is provided with an engagement recess portion 105b that is a rotation restricting portion. It is provided so as to face the mating convex portion 206b. As a result, when the insertion portion 20 is mounted on the endoscope main body 10, the protruding guide portion 206a is first guided to the guide receiving portion 105a of the endoscope main body 10 and the engagement of the protruding guide portion 206a. The rotation is restricted and moved by the engaging action of the convex portion 206b and the engaging concave portion 105b of the guide receiving portion 105a, and the same effect as the above embodiment is expected.

(Third embodiment)
FIG. 6 shows a main part of an endoscope apparatus according to the third embodiment of the present invention. However, in FIG. 6, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, in the third embodiment, the optical transmission path base 111a, the channel base 121a, and the connection connector 131a are arranged substantially flush with the connection portion 100 of the endoscope body 10, and this optical transmission path base is provided. The leading ends of the optical transmission line 11, the channel 12, and the connection cable 13 are attached to the 111a, the channel cap 121a, and the connection connector 131a. The connecting portion 100 is provided with, for example, a plurality of guide receiving portions 105c constituting a positioning guide portion.

  Further, a coupling recess 104a that constitutes a coupling mechanism extends around the connection portion 100 of the endoscope body 10, and an O-ring 30 that is a watertight member for coupling watertightness is formed on the inner wall of the coupling recess 104a. It is provided opposite to the periphery of the connection portion 204 of the insertion portion 20.

  On the other hand, the optical transmission path base 211a, the channel base 221a, and the connection connector 231a are connected to the connection section 204 of the insertion section 20, the optical transmission path base 111a, the channel base 121a, and the connection connector of the endoscope body 10. Corresponding to 131a, it is provided substantially flush. The optical transmission path 21, the channel 22 and the connection cable 23 are attached to the optical transmission path base 211a, the channel base 221a and the connection connector 231a, respectively. In this connection portion 204, for example, a plurality of protruding guide portions 206a constituting a positioning guide portion correspond to the guide receiving portion 105c of the connection portion 100 of the endoscope body 10, and the optical transmission path base 211a, It is provided so as to protrude from the channel cap 221a and the connection connector 231a.

  In addition, the insertion portion 20 is provided with a coupling portion 205a that is elastically deformable on the peripheral wall of the connection portion 204 corresponding to the coupling recess 104a of the endoscope body.

  With the above configuration, when the insertion portion 20 inserts the distal end of the protruding guide portion 206a into the guide receiving portion 105c of the endoscope body 10, the optical transmission path base 211a, the channel base 221a, and the connection connector 231a are internally viewed. Opposite the optical transmission path base 111a, the channel base 121a and the connection connector 131a of the mirror body 10. When the protruding guide portion 206a of the insertion portion 20 is pushed into the guide receiving portion 105c of the endoscope main body 10, the optical transmission path base 211a, the channel base 221a, and the connection connector 231a are connected to the endoscope main body 10. The optical transmission path base 111a, the channel base 121a, and the connection connector 131a are connected and coupled.

  At this time, the insertion portion 20 is inserted into the plurality of guide receiving portions 105c of the endoscope body 10 by the plurality of protruding guide portions 206a, so that the rotation with respect to the endoscope body 10 is restricted, and a desired rotation position is obtained. Is held and moved. In the state where the mounting is completed, the insertion portion 20 is elastically engaged with the coupling recess 104a of the endoscope body 10 by the elastic force of the coupling portion 205a, and is positioned and coupled to the endoscope body 10.

  Further, in the state where this mounting is completed, the O-ring 30 disposed on the inner wall of the coupling recess 104a of the connection portion 100 of the endoscope body 10 is kept watertight between the connection portion 204 of the insertion portion 20. It is. By arranging the O-ring 30 that is a watertight member in the endoscope main body 10 in this way, especially when replacement due to breakage of the insertion portion 20 becomes necessary, or in addition, for example, different specifications are different. Even in a case where the insertion portion is applied to an endoscope system in which the insertion portion is mounted in an exchangeable manner, the O-ring 30 can be shared.

  Moreover, as said watertight coupling | bonding structure, you may comprise as shown, for example in FIG.7 and FIG.8, and the substantially same effect is anticipated. However, in FIG. 7 and FIG. 8, the same reference numerals are given to the same parts as those in FIG.

  In the watertight coupling configuration of FIG. 7, for example, a cylindrical coupling member 31 is wound around the outer peripheral portion of the connection portion 204 of the insertion portion 20 so as to be movable in the axial direction. The coupling member 31 is provided with an elastically deformable coupling portion 311 at one end thereof corresponding to the coupling recess 104a of the endoscope body 10, and a locking portion 312 at the other end. It is provided corresponding to the arranged locking portion 207. Further, an O-ring 32 that is a watertight member is provided on the inner wall of the coupling member 31 at a predetermined interval corresponding to the outer peripheral wall of the connecting portion 204 of the insertion portion 20 and the outer peripheral wall of the connecting portion 100 of the endoscope body 10. Is provided.

  With the above configuration, when the protruding portion 206a of the insertion portion 20 is engaged with the guide receiving portion 105c of the endoscope body 10 and the protruding portion 206a is pushed into the guide receiving portion 105c, the insertion portion 20 is moved. The optical transmission path base 211a, the channel base 221 and the connection connector 231 are connected and coupled to the optical transmission path base 111a, the channel base 121a and the connection connector 131a of the endoscope body. Subsequently, when the insertion part 20 is moved in the direction of the endoscope body 10 until the locking part 312 is locked to the locking part 207 of the insertion part 20, the coupling part 311 is moved to the inside. The insertion portion 20 and the endoscope body 10 are integrally coupled by being elastically engaged with the coupling recess 104 a of the endoscope body 10. Here, the O-ring 32 of the coupling member 31 is pressed against the outer peripheral walls of the connection portion 204 of the insertion portion 20 and the connection portion 10 of the endoscope main body 10 to hold each other in a watertight state.

  Further, in the watertight coupling configuration of FIG. 8, cover glasses 33 and 34 for protecting the optical transmission path are respectively embedded in the connection portion 204 of the insertion portion 20 and the connection portion 100 of the endoscope body 10. The optical transmission path caps 211a and 111a are optically connected to each other through the connector 34. The water-tight coupling configuration of FIG. 8 is configured in substantially the same manner as in FIG. 6 except for the cover glasses 33 and 34, and is similarly water-tight via the O-ring 30 with the insertion portion mounted on the endoscope body. Attached to the state.

  That is, one end of the optical transmission path base 211a of the insertion portion 20 is placed in contact with one cover glass 33, and the channel base 221a and the connection connector 231a are inserted, for example, via an adhesive. It is watertight. Note that, for example, it may be hermetically fixed via solder or solder. The optical transmission path 21a, the channel 22a, and the connection cable 23 are attached to the optical transmission path base 211a, the channel base 221a, and the connection connector 231a.

  On the other cover glass 34, the tip of the optical transmission path base 111a of the endoscope main body 10 is placed in contact, and the channel base 121a and the connection connector 131a are inserted, for example, watertight via an adhesive. Fixed. Note that, for example, it may be hermetically fixed via solder or solder. The optical transmission path 11, the channel 12, and the connection cable 13 are attached to the optical transmission path base 111a, the channel base 121a, and the connection connector 131a.

With the above configuration, when the protruding guide portion 206a of the insertion portion 20 is engaged with the guide receiving portion 105c of the endoscope body 10 and inserted to the mounting position as described above, the coupling portion 205a is inserted into the endoscope body 10. It is elastically engaged with the coupling recess 104a to complete the mounting. Here, the cover glass 33, 34 is brought into contact with the insertion portion 20 and the endoscope body 10, and the optical transmission path caps 211 a, 111 a are optically connected via the cover glass 33, 34. At the same time, the mutual channel caps 221a and 121a and the mutual connection connectors 231a and 131a are respectively connected. When the insertion portion 20 is completely attached to the endoscope main body 10, the coupling portion 205 a is coupled to the coupling concave portion 104 a of the endoscope main body 10, and the inner wall of the coupling concave portion 104 a of the endoscope main body 10. The O-ring 30 disposed on the insertion part 20 is kept in a watertight state between the connection part 204 of the insertion part 20 and the insertion part 20 and the endoscope main body 10 have the connection surfaces of the optical transmission paths 21 and 11 thereof. By being protected independently through the cover glasses 33 and 34, for example, dirt can be prevented in a separated state such as when the insertion portion 20 is attached or detached, so that a desired light transmission efficiency can be ensured in the attached state. It can be secured.

(Fourth embodiment)
FIG. 9 shows an endoscope apparatus according to the fourth embodiment of the present invention. However, in FIG. 9, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, in the fourth embodiment, the protruding guide portion 206 of the insertion portion 20 is formed of a metal material, and the conductive member 36 is attached to the internal metal 35 such as a serpentine blade disposed in the insertion portion 20. Electrical connection through On the other hand, a conductive member 38 is disposed on the bottom surface of the guide receiving portion 105 of the endoscope main body 10, and the conductive member 38 is electrically connected to the internal metal 37 in the endoscope main body 10. Configure. The internal metal 35 of the insertion portion 20 is electrically connected to the tip frame 39. The internal metal 37 is electrically connected to the ground of the patient circuit of the video processor (not shown).

  With the above-described configuration, the insertion part 20 and the endoscope main body 10 discharge the internal metals 35 and 37 from the projecting guide part 206 and the guide receiving part 105 via the conductive members 36 and 38 due to the attachment / detachment. In addition, a strong shield structure is formed by the internal metals 35 and 37, and its electrical and electromagnetic stability is ensured.

  In addition, the shield structure may be configured as shown in FIG. 10, for example, and further effective effects are expected.

  That is, in the shield structure of FIG. 10, the internal metal 35 such as the serpentine blade of the insertion portion 20 is electrically connected to the protruding guide portion 205 of the insertion portion 20 via the conductive member 36. The shield part 232 of the connection cable 23 which is an interior body is electrically connected. For example, the connection cable 23 is electrically connected to an image pickup device 41 disposed to face the object optical system 40 disposed at the distal end portion 201 of the insertion portion 20.

  Further, a conductive member 38 is disposed on the bottom surface of the guide receiving portion 105 of the endoscope main body 10, and the conductive member 38 is electrically connected to the internal metal 37 in the endoscope main body 10. At the same time, it is electrically connected to the shield part 132 of the connection cable 13 which is the interior body of the endoscope body 10.

  Furthermore, as the shield structure, in addition, the shield body 232 of the connection cable 23 that is the interior body of the insertion portion 20 is electrically connected to the protruding guide portion 206 of the insertion portion 20, and the endoscope body The shield part 132 of the connection cable 13 that is the interior body of the endoscope main body 10 may be electrically connected to the ten guide receiving parts 105.

  In the second and fourth embodiments, the first to third fitting holes 101 to 103 are formed in the connection portion of the endoscope main body 10 as a connection structure as in the first embodiment. The optical transmission path base 211, the channel base 221 and the connection connector 231 are arranged so as to protrude from the insertion portion 20 and are attached to each other. However, the present invention is not limited to this. It is also possible to provide a fitting hole in the connection portion 204 of the insertion portion 20 so that the optical transmission path base 111, the channel base 121, and the connection connector 131 protrude from the endoscope body. .

  Therefore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

  For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, the problems described in the column of problems to be solved by the invention can be solved, and the effects described in the effects of the invention can be obtained. In some cases, a configuration from which this configuration requirement is deleted can be extracted as an invention.

  In addition, according to each of the embodiments described above, the present invention can also obtain the following configuration.

(Appendix 1)
An insertion portion that is inserted into the body cavity and provided with a positioning guide portion and a connecting portion of the interior body at the rear end;
The positioning guide portion with which the positioning guide portion of the insertion portion is engaged, and after the positioning guide portion of the insertion portion is engaged with the positioning guide portion so as to be capable of guiding, the connection portion of the insertion portion is connected. An endoscope main body provided with an operation portion for operating the insertion portion provided with the connecting portion of the interior body;
An endoscope apparatus comprising:

(Appendix 2)
A coupling mechanism that removably couples the insertion guide while the positioning guide of the insertion portion is guided by the positioning guide of the endoscope body and the connection portion is mounted on the connection portion of the endoscope body. The endoscope apparatus according to appendix 1, characterized by comprising:

(Appendix 3)
The endoscope apparatus according to appendix 2, wherein the coupling mechanism includes a watertight member that connects the connection portion of the insertion portion and the connection portion of the endoscope main body in a watertight state.

(Appendix 4)
The endoscope apparatus according to appendix 3, wherein the watertight member of the coupling mechanism is disposed in the endoscope body.

(Appendix 5)
The endoscope apparatus according to any one of appendices 2 to 4, wherein the coupling mechanism is movably disposed in the insertion portion.

(Appendix 6)
The endoscope apparatus according to any one of appendices 1 to 5, wherein the connection portion of the insertion portion and the connection portion of the endoscope main body are formed in a watertight structure by being covered with a cover glass.

(Appendix 7)
The connection part of the insertion part and the connection part of the endoscope body are formed with a connection convex part on one side and a connection concave part provided with a guide part inclined narrower in the depth direction from the opening end on the other side. The endoscope apparatus according to any one of appendices 1 to 6, wherein the endoscope apparatus is provided.

(Appendix 8)
The endoscope device according to appendix 7, wherein the connecting portion of the insertion portion and the connecting portion of the endoscope main body are each provided with a hard member on at least one connection convex portion.

(Appendix 9)
The endoscope apparatus according to appendix 7, wherein the connection convex portion and the connection concave portion are formed by a pair of connection connectors.

(Appendix 10)
The positioning guide part of the insertion part is electrically connected to the internal metal of the insertion part, and the positioning guide part of the endoscope body is electrically connected to the internal metal of the endoscope body. The endoscope apparatus according to any one of appendices 1 to 9, characterized in that

(Appendix 11)
The endoscope apparatus according to any one of appendices 1 to 9, wherein the positioning guide portion of the insertion portion and the positioning guide portion of the endoscope body are electrically connected to a shield portion of a connection cable that is an interior body. .

(Appendix 12)
The positioning guide portion of the insertion portion is electrically connected to the inner metal of the insertion portion and the shield portion of the connection cable that is the interior body, and the positioning guide portion of the endoscope body is connected to the endoscope body. The endoscope apparatus according to any one of appendices 1 to 9, wherein the endoscope apparatus is electrically connected to an internal metal and a shield portion of a connection cable that is an interior body.

(Appendix 13)
One of the positioning guide portion of the insertion portion and the positioning guide portion of the endoscope main body is formed with a plurality of rod-shaped protruding guide portions, and the other is formed with a plurality of concave guide receiving portions. The endoscope apparatus according to any one of appendices 1 to 12.

(Appendix 14)
One of the positioning guide part of the insertion part and the positioning guide part of the endoscope body is formed with a protruding guide part protruding in a ring shape having a rotation restricting part, and the other is engaged with the one rotation restricting part. The endoscope apparatus according to any one of appendices 1 to 12, wherein a guide receiving portion having a ring-shaped groove having a rotation restricting portion is formed.

1 is a plan view showing an external configuration of an endoscope apparatus according to a first embodiment of the present invention. FIG. It is sectional drawing which shows the principal part of the state which made the insertion part of FIG. 1 detach | leave from the endoscope main body. It is sectional drawing which showed the mounting state of FIG. It is sectional drawing which took out and showed the principal part of the endoscope apparatus which concerns on 2nd Embodiment of this invention. FIG. 5 is a cross-sectional view taken along a line AA in FIG. 4. It is sectional drawing which took out and showed the principal part of the endoscope apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which showed the modification of the endoscope apparatus which concerns on 3rd Embodiment shown in FIG. It is sectional drawing which showed the other modification of the endoscope apparatus which concerns on 3rd Embodiment shown in FIG. It is sectional drawing which took out and showed the principal part of the endoscope apparatus which concerns on 4th Embodiment of this invention. It is sectional drawing which showed the modification of the endoscope apparatus which concerns on 4th Embodiment shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Operation part, 2 ... Universal cord, 3 ... Light guide connector, 4 ... Light input part, 5 ... Video connector, 6 ... Video cable, 10 ... Endoscope main body, 100 ... Connection part, 101-104 ... 1st Thru | or 3rd fitting hole, 101a-103a ... guide part, 104, 104a ... coupling | bonding recessed part, 105, 105a, 105c ... guide receiving part, 105b ... engagement recessed part, 11 ... optical transmission path, 111, 111a ... optical transmission Road cap, 12 ... channel, 121, 121a ... channel cap, 13 ... connection cable, 131,131a ... connector, 132 ... shield portion, 20 ... insertion portion, 201 ... tip portion, 202 ... curved portion, 203 ... Soft tube 204, connecting portion 205, 205a, coupling portion 206, 206a, protruding guide portion 206b, engaging convex portion, 207, locking portion, 21 ... light transmission Path, 211, 211a ... base for optical transmission path, 22 ... channel, 221, 221a ... base for channel, 23 ... connection cable, 231, 231a ... connection connector, 232 ... shield part, 30 ... O-ring, 31 ... coupling member 311 ... coupling part, 312 ... locking part, 32 ... O-ring, 33, 34 ... cover glass, 35, 37 ... internal metal, 36, 38 ... conductive member, 39 ... tip frame, 40 ... objective optical system, 41: Image sensor.

Claims (2)

Be one that is inserted into a body cavity, the connecting portion and is connected positioning guide portion formed at one of the protruding guide portion or a plurality of concave guide receiving portion of the plurality of bar-like, the inner body to the rear end An insertion portion provided with an elastically deformable coupling portion surrounding the positioning guide portion and the connection portion ;
Positioning guide portion formed in the other of the insertion portion projecting guide portions of the plurality of rod-shaped or a plurality of concave guide receiving portion which is engaged moved and guided freely engaged in the axial direction relative to the positioning guide portion of the insertion A connecting portion connected to the connecting portion of the connecting portion, a connecting portion to which the connecting portion of the inserting portion is attached and watertightly connected, and an operating portion for operating the inserting portion. the positioning guide portion of the insertion portion is moved guided in engagement, the connecting portion of the insertion portion connected Rutotomoni to said connecting portion, coupling portion of the insertion portion with respect to the coupling portion with respect to an endoscope main body, wherein the insertion portion is coupled in a watertight state Ru is mounted,
An endoscope apparatus comprising: One of the positioning guide portion of the insertion portion and the positioning guide portion of the endoscope body is formed by a protruding guide portion protruding in a ring shape having a rotation restricting portion, and the other is engaged with the one rotation restricting portion. rotation regulating portion endoscope apparatus according to claim 1, wherein the formed by the guide receiving portion in which the groove-like ring-shaped and wherein Rukoto having a being.

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