JPH04322632A - Endoscope - Google Patents

Abstract

PURPOSE:To achieve a higher workability of washing work of pipelines by arranging a fluid supply port body of a sub fluid supply pipeline on the side of an operating section body to facilitate work of connecting the side of the operating body to the side of a grip section. CONSTITUTION:A sub feed water port 26 of a sub feed water pipeline 25 is arranged on the side of an operating section body 3a. As a result, in the working of connecting the side of the operating section body 3a to the side of a grip section 51, all is done simply by performing a work of connecting a first connecting end part 101a of a pipeline connecting device 101 to one pipeline structure body 5a of a down stream side feed water pipeline 5a thereby facilitating the work of connecting the side of the operating section body 3a to the side of the grip 51. This also can simplify the pipeline structure in the operating section body 3a thereby facilitating the work of washing the pipelines assembled into the operating section 3 with a brush.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope having a fluid supply conduit provided with an auxiliary fluid supply conduit for supplementary fluid supply.

0002

[Prior Art] Generally, an observation window and a nozzle for spraying cleaning water onto the observation window are provided at the distal end of the insertion section, and a water supply pipe connected to the nozzle is provided inside the insertion section, and the water supply pipe is passed through the observation window. 2. Description of the Related Art Endoscopes configured to supply cleaning water to the nozzle side are known.

[0003] However, in the above structure, the amount of cleaning water sprayed from the nozzle onto the observation window is limited to a certain amount, and there is a problem that powerful water cannot be supplied. Therefore, as shown in Japanese Patent Laid-Open No. 63-35226, for example, an auxiliary fluid supply pipe is provided which is connected to the water supply pipe in the insertion section, and this sub-fluid supply pipe connects the water supply pipe with an auxiliary fluid supply pipe. A system has been developed that allows a larger amount of water to be delivered than usual by supplying fluid. In this case, a conduit switching valve for switching the connection state of the water supply conduit is disposed in the operating unit main body of the endoscope. Further, a hand-held grip section is connected to the operation section main body, and a fluid supply port body of the auxiliary fluid supply conduit is provided in this grip section.

0004

[Problems to be Solved by the Invention] In the endoscope having the above-mentioned conventional structure, the fluid supply port body of the auxiliary fluid supply conduit is provided in the hand-held grip connected to the operating unit main body. A pipe such as a water supply pipe connected to a pipe switching valve is installed on the side, and a sub-fluid supply pipe connected to the fluid supply port body is installed on the grip side. Therefore, when assembling the endoscope, when connecting the operation part main body side and the grip part side, it is necessary to connect the water supply pipe etc. on the operation part main body side and the auxiliary fluid supply pipe on the grip part side. Since it is necessary to carry out a troublesome work of connecting, the work of connecting the operation part main body side and the grip part side becomes complicated, and there is a problem that the workability is poor.

[0005]Furthermore, since it is difficult to clean each conduit built into the operating section by brushing it with a brush, there is a problem in that the cleaning work for each conduit built into the operating section becomes troublesome.

[0006] The present invention has been made in view of the above-mentioned circumstances, and can facilitate the work of connecting the main body side of the operating section and the side of the grip section, improve the workability, and It is an object of the present invention to provide an endoscope that can improve the workability of cleaning each duct.

[0007]

[Means for Solving the Problems] In the present invention, a hand-held grip section is connected to an operating section main body, and a fluid supply conduit extending through the grip section and extending toward the insertion section side is connected to the operating section main body. In the endoscope, the endoscope is provided with a pipe switching valve for switching, and a sub-fluid supply pipe connected to the fluid supply pipe and supplementally supplying fluid to the fluid supply pipe. The fluid supply port body of the fluid supply conduit is arranged on the operation section main body side.

[0008]

[Operation] In the above configuration, the operation can be performed by connecting the pipe line connected to the pipe line switching valve and the sub-fluid supply pipe line connected to the sub-fluid supply port body when assembling the main body of the operating section. When working to connect the part body side and the grip part side, the work of connecting the pipe line connected to the pipe line switching valve and the sub-fluid supply pipe line connected to the sub-fluid supply port body is omitted,
Facilitates the connection work between the operating unit main body side and the grip unit side,
This is intended to improve the workability and the workability of cleaning each conduit built into the operating section.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of the entire endoscope 1. As shown in FIG. In FIG. 1, 2 is the insertion section of the endoscope 1, 3 is the operation section, and 4 is the insertion section of the endoscope 1.
is a universal code.

A connector portion 9 is provided at the tip of the universal cord 4 to be connected to a light source device (not shown). By connecting this connector portion 9 to a light source device, illumination light is supplied from the light source in the light source device to the incident end surface of the light guide disposed in the endoscope 1. This light guide is composed of a fiber bundle, transmits the illumination light supplied from the light source device to the incident end surface, and is connected to the other fiber bundle (not shown) fixed to the distal end surface of the distal end component 31 of the insertion section 2 shown in FIG. Illumination light is emitted from the output end face toward the subject in front.

The main body 31a of the distal end component 31 is connected to an air/water supply hole 32, an objective optical system mounting hole 33, an illumination optical system mounting hole (not shown), and an upstream suction pipe 17a which also serves as the treatment instrument insertion channel 18. A suction hole is formed in each case. A proximal end portion of the air/water nozzle 7 is inserted into the tip side of the air/water feeding hole 32, and one end of the connecting pipe 37 is inserted into the rear end side of the air/water feeding hole 32 and fixed thereto.

Further, a tip cover 39 is attached to the outer surface of the tip component main body 31a. The tip cover 39 has openings that communicate with the air and water supply hole 32, the objective optical system mounting hole 33, the illumination optical system mounting hole (not shown), and the suction hole of the tip component main body 31a.

Furthermore, an observation window 8 is attached in a watertight manner to the opening of the tip cover 39 that communicates with the objective optical system mounting hole 33 of the tip component main body 31a. Around this observation window 8, the output end face of the light guide, the opening of the upstream suction pipe 17a, and the injection nozzle 7 are arranged.

Further, an opening 40 formed in the tip cover 39 and communicating with the air/water supply hole 32 of the tip component body 31a is filled with an adhesive 41 for adhesively fixing the air/water nozzle 7. There is. The injection port 7a on the tip side of the air/water feeding nozzle 7 is bent toward the observation window 8 and fixed to the tip cover 39 side with an adhesive 41. In this case, as shown in FIG. 3A, the adhesive 41 is filled without leaking into the gap between the joint between the tip cover 39 and the air/water nozzle 7. This prevents dirt, bacteria, etc. from accumulating in the gaps between the

As shown in FIG. 3(B), grooves 42 and 43 are formed in the tip cover 39 at positions corresponding to the edge areas on both sides of the air/water supply nozzle 7 to prevent the adhesive from peeling off. A configuration may be adopted in which adhesive is filled in the grooves 42 and 43 to prevent the adhesive from peeling off.

Furthermore, an objective lens system 34 is disposed in the objective optical system mounting hole 33 at the back of the observation window 8. Then, the object illuminated by the illumination light from the output end face of the light guide is detected by the solid-state image sensor ( SID) 35. This SID
The optical image photoelectrically converted by 35 becomes an electric signal,
Via the electrical cable 36, it is led to the electrical contacts of the connector part 9.

Also, inside the insertion section 2, there is a downstream water supply pipe (fluid supply pipe) 5a for supplying water, a downstream air supply pipe 6a for supplying air, and a suction pipe that also serves as a treatment instrument insertion channel 18. Upstream suction pipes 17a are provided respectively for carrying out the following steps.

The distal ends of the downstream water supply pipe 5a and the downstream air supply pipe 6a merge near the distal end of the insertion section 3 to form one common air and water supply pipe 38, and this air supply The tip of the water pipe line 38 is connected to the connecting pipe 37 of the air/water supply hole 32 . Then, gas or liquid (such as cleaning water) supplied through the air/water pipe 38 and sent through the air/water nozzle 7 can be sprayed onto the outer surface of the observation window 8. There is.

Further, the tip side of the upstream suction conduit 17a is communicated with the suction hole of the tip component main body 31a. Furthermore, the proximal end side of this upstream suction line 17a is connected to a forceps introduction cap 70 that forms a treatment instrument insertion channel 18 via a line connector 71 having a substantially Y-shaped branch passage 72 as shown in FIG.
and one end of the suction connection conduit 72, respectively. This conduit connector 71 is formed with first, second, and third conduit connecting portions 71a, 71b, and 71c, respectively. The first pipe connection part 71a has a forceps introduction cap 70, the second pipe connection part 71b has a suction connection pipe 72,
The upstream suction pipes 17a are connected to the third pipe connection portions 71c via fixing nuts 73, respectively.

Furthermore, the other end of the forceps introduction mouthpiece 70 is connected to a treatment instrument introduction port body 69 that projects from the grip section 51 of the operating section 3. Furthermore, a forceps plug mounting seat is formed at the other end edge of the forceps introduction mouthpiece 70. A forceps plug 19 made of an elastic material is removably connected to this forceps plug mounting seat. This forceps plug 19 has a slit formed therein through which a treatment tool such as forceps is inserted. This slit is normally held closed by the elasticity of the forceps plug 19, except when the treatment instrument is inserted.

The other end of the suction connection pipe 72 and the rear ends of the downstream water supply pipe 5a and the downstream air supply pipe 6a are disposed within the universal cord 4 extending from the operating section 3. A suction switching valve 21 and an air/water supply switching valve (pipe switching valve) 22 provided in the operating section main body 3a on the downstream side suction pipe 17b, the upstream water supply pipe 5b, and the upstream air supply pipe 6b.
are connected to each other via.

Furthermore, an air supply mouthpiece 10, an air and water supply mouthpiece 11, and a suction mouthpiece 12 are respectively provided protruding from the connector portion 9 at the tip of the universal cord 4. In this case, the air and water supply mouthpiece 11 is provided with a water supply port 13 and an air supply port 14, which are connected to the upstream water supply pipe 5b and the upstream air supply pipe 6b, respectively. A connecting pipe (not shown) on the water tank side is connected to the air/water supply mouthpiece 11 . Note that the rear end side of the upstream air supply pipe line 6b is branched, and the air supply pipe 6b is branched.
It is also connected to 0.

Further, the rear end of the downstream suction pipe 17b is connected to the suction mouthpiece 12. A suction pump (not shown) and a suction tube communicating with a suction bottle are connected to this suction mouthpiece 12.

By connecting the connector portion 9 to the light source device, the thin tube-shaped air supply cap 10 protruding from the connector portion 9 is connected to an air pump (not shown) in the light source device, and this air pump The air supplied from the air supply pipe 6b side via the air supply mouthpiece 10 or the air and water supply mouthpiece 1
1 to the air supply port 14 side.

Further, a water supply tank is connected to the air and water supply mouthpiece 11 via a connecting pipe. This connector is provided with a water supply tube connected to the water supply port 13 of the air and water supply mouthpiece 11 and an air supply tube connected to the air supply port 14. In this case, the lower end of the water supply tube extends to a portion near the inner bottom of the water supply tank, and is immersed in the wash water in the water supply tank. Furthermore, the lower end of the air supply tube is fixed to the upper part of the water supply tank. The air and water supply cap 11 is connected to the connecting pipe, and air is supplied into the water tank through the air supply tube, so that the air in the water tank is pressurized.

[0026] Also, the suction switching valve 21 of the operating section main body 3a
is provided with a stopper formed within the operating section main body 3a. As shown in FIG. 5, a cylinder mouthpiece 21a is provided protruding from the opening edge of this suction cylinder. A suction button unit 23 is removably attached to the cylinder cap 21a.

The suction button unit 23 includes a suction piston that is slidably mounted within the suction cylinder of the operation section main body 3a, a suction button formed on the head of the piston, and
Components such as a suction button mounting rubber and a return spring are provided. By operating the suction button of the suction switching valve 21, the suction can be switched.

The air/water switching valve 22 is provided with an air/water cylinder formed within the operating section main body 3a. A cylinder mouthpiece 22a is provided protruding from the opening edge of this air/water supply cylinder. An air/water supply button unit 24 is removably attached to the cylinder cap 22a.

The air and water supply button unit 24 includes an air and water supply piston that is slidably mounted in the air and water supply cylinder of the operation section main body 3a, an air and water supply button formed on the head of the piston, and an air and water supply button formed on the head of the piston. Components such as pneumatic water button mounting rubber and return spring are provided. By operating the air/water supply button of the air/water supply switching valve 22, air supply and water supply operations can be switched.

[0030] Also, a suction switching valve 2 is provided in the operation section main body 3a.
1 and the air/water supply switching valve 22, a cylindrical sub-water supply mouthpiece (fluid supply port body) 27 is provided which forms a sub-water supply port 26 that supplementally supplies fluid to the downstream water supply pipe 5a. .

One end side of this sub-water supply cap 27 is shown in FIG.
As shown in A), a protrusion protruding to the outside of the operation section main body 3a is provided, and a sub-water supply port plug mounting groove 27a is formed on the outer peripheral surface of this protrusion. Further, a male threaded portion 2 is provided on the outer circumferential surface of the other end side of the sub water supply cap 27.
7b is formed.

A female threaded threaded portion 81a formed on the inner circumferential surface of one end of the cylindrical auxiliary water port fixture 81 is screwed into the threaded portion 27b of the auxiliary water supply mouthpiece 27. moreover,
One end of a connecting pipe 81b is fixed to the other end side of this sub-water supply cap fixture 81. One end of the sub-water supply pipe (sub-fluid supply pipe) 25 is connected to the other end of the connecting pipe 81b. The other end of this sub-water pipe 25 is the downstream water pipe 5
connected to a. As shown in FIG. 11, a substantially Y-shaped pipe connector 101 is interposed at the connecting portion between the sub-water supply pipe 25 and the downstream water supply pipe 5a. This conduit connector 101 has first, second, and third connecting ends 101a,
101b and 101c are formed, respectively.

[0033] Further, the downstream water supply pipe 5a is divided into two parts in the middle. The first connecting end 101a of the pipe connector 101 has one pipe constituting part 5a1 of the downstream water pipe 5a, and the second connecting end 101b has the other pipe constituting part 5a1 of the downstream water pipe 5a. The other end of the sub-water supply pipe 25 is connected to the pipe forming part 5a2 and the third connecting end 101c, respectively.

Furthermore, a sub-water port plug 82 made of an elastic material such as rubber is fitted into the sub-water port plug mounting groove 27a of the sub-water port 27. This sub-water supply port plug 82 has a ring-shaped partition portion 83 formed on the inner circumferential surface of a substantially cylindrical main body 82a and projecting inward. A seal hole 83a is formed in the center of the partition portion 83. And the partition part 83 of the sub-water supply port plug main body 82a
The sub-water supply port plug mounting groove 27 of the sub-water supply cap 27 is located on the lower part of the sub-water supply spout 27.
A first engaging portion 84 is formed to be removably engaged with a.

Further, a plug body 87 is connected to the outer circumferential surface of the sub-water supply port plug main body 82a via a connecting arm portion 86. This plug body 87 is fitted into a recessed fitting recess 85 formed in the upper part of the partition portion 83 of the sub-water supply port plug main body 82a. Furthermore, a slit 88 shown in FIG. 10(B) is formed in this plug body 87. When the slit 88 is not inserted with the auxiliary water supply tube cap 92 connected to the external auxiliary water supply tube 91, the slit 88 is closed and sealed by the elasticity of the stopper 87 itself, as shown in FIG. 10(A). It is designed to withstand pressure from the water pipe 25. Then, the sub water supply tube 9 is inserted into this slit 88.
As the first sub-water supply tube cap 92 is inserted, it is elastically deformed and opened as shown in FIG. 10(C).

It should be noted that an annular gripping rubber ring 93 is fitted onto the outer circumferential surface of the auxiliary water supply tube cap 92. Further, a tapered surface 27c is formed on the inner circumferential surface of the sub-water inlet 26 of the sub-water inlet 27, the inner diameter of which gradually increases toward the outside. In this case, a tapered surface having a shape corresponding to this tapered surface 27c is formed on the outer circumferential surface of the distal end portion of the sub-water-feeding tube cap 92 of the sub-water-feeding tube 91. When the sub water feeding tube cap 92 of the sub water feeding tube 91 is inserted into the slit 88, the joint surface between the tapered surface of the sub water feeding tube cap 92 and the tapered surface 27c of the sub water feeding port 26 of the sub water feeding cap 27. , and the outer peripheral surface of the sub-water supply tube cap 92 and the seal hole 83a of the partition portion 83,
A watertight state is maintained by the joint surface with the slit 88.

On the other hand, the operation section main body 3a of the operation section 3 is shown in FIG.
As shown in the figure, a suction switching valve 21, an air/water supply switching valve 22,
An exterior case main body 53 to which the sub-water supply mouthpiece 27 and the eyepiece part 52, etc. are attached, an operation part lid body 54 to which the universal cord 4 is attached, and a hand-held grip part 51 arranged on the insertion part 2 side are respectively included. It is provided.

As shown in FIG. 5, the outer case body 53 has a grip attachment opening 53a formed therein. An annular grip connecting portion 53b is provided protruding from the mouth edge of the grip attachment opening 53a. A sealing member 55 such as an O-ring is attached to the joint between the grip connecting portion 53b and the open end of the grip portion 51 for sealing.

A substantially L-shaped fixing plate 56 is provided on the inner surface of the outer case body 53, as shown in FIG. This fixing plate 56 is located between the outer case body 53 and an eyepiece mounting seat 57 provided on the outer surface side of the outer case body 53.
Fixing screw 58a and nut 58b are sandwiched between the walls of
It is fixed by In this case, an insulating member 58c is inserted under the nut 58b to electrically insulate the inside and outside of the outer case body 53.

Further, one end portion of a mounting board 59 is fixed to the fixing plate 56 with fixing screws 60. As shown in FIG. 7, the other end of the mounting board 59 protrudes outside the grip mounting opening 53a of the outer case body 53 (inside the grip 51). The protruding end portion of this exterior case body 53 is screwed to the base end portion of a frame 61 disposed within the grip portion 51.

Further, as shown in FIG. 8, the distal end of the frame 61 is screwed and fixed to the connecting portion main body 64 via a connecting ring 62 with a fixing screw 63. As a result, the connecting portion main body 64 is integrally assembled and fixed to the outer case main body 53 via the mounting board 59. and,
The grip part 51 is placed over this fixed assembly part, and the open end of the grip part 51 is inserted up to the grip part connection part 53b of the grip part attachment port 53a of the outer case body 53, and then tightened with a tightening screw. The portion 51 is fixed to the outer case body 53.

Note that the insertion portion 2 on the distal end side of the grip portion 51
A fixing ring 65 is disposed at the connecting portion with the bending prevention portion 68 . A connecting portion body 64 is provided on the outer peripheral surface side of this fixed ring 65.
is fixed in an inserted state, and an insertion tube body 66 is fixed in an inserted state on the inner peripheral surface side of this fixed ring 65.

Furthermore, the outer case main body 53 is shown in FIG.
As shown in ), an operation section lid mounting opening 53b is formed. In this case, the operation unit lid 54 is placed on the mounting board 59.
A fixing fitting 74 is screwed and fixed by a fixing screw 75. This fixing fitting 74 has an operation unit lid attachment port 5.
A fixing portion 74a of the operating portion lid 54 is provided extending from the outer case body 53 to the outside of the outer case body 53.

[0044] The universal cord 4 also includes a protective tube 7.
6 are integrally provided. As shown in FIG. 9(B), the protective tube 76 is fixed to the fixing portion 74a of the fixing fitting 74 with a fixing screw 77.

Furthermore, the operation section lid 54 is provided with a first opening 54a into which the protective tube 76 is inserted and a second opening 54b into which the fixing part 74a of the fixing fitting 74 is inserted. Further, a male thread-shaped connecting screw portion 76a is formed on the outer circumferential surface of the protection tube 76. This connecting screw part 76
A female screw thread 78a formed on the inner circumferential surface of a connecting ring 78 disposed on the proximal end side of the bending stopper 79 of the universal cord 4 is screwed onto a. An engaging portion that is engaged with the operating section lid 54 is formed at the end of the connecting ring 78 on the operating section main body 3a side.
In accordance with the tightening operation of step 8, the operation section lid body 54 is fixed to the exterior case body 53 side.

It should be noted that the joint surface between the peripheral edge of the first opening 54a in the operation section lid 54 and the connecting ring 78 is connected to the O-ring 81, and the joint surface between the peripheral edge of the operation section lid attachment port 53b in the outer case body 53 and the operation surface are connected to each other. An O-ring 82 is attached to the joint surface of the lid body 54 with the peripheral edge of the second opening 54b, and an O-ring 83 is attached to the joint surface between the connecting ring 78 and the protective tube 76, and there is a gap between these joint surfaces. Watertightly sealed.

The upstream suction pipe 17a, which also serves as the treatment instrument insertion channel 18, has a configuration shown in FIG. 12(A). That is, the tube body 111 of the upstream suction conduit 17a is formed of a relatively hard synthetic resin material such as Teflon. This tube body 111
As shown in FIG. 12(A), a substantially spiral groove 111a is formed on the outer circumferential surface of. A metal coil 112 made of stainless steel or the like is mounted inside the spiral groove 111a.

Furthermore, after the metal coil 112 is attached, a soft adhesive 113 is applied to the outer peripheral surface of the tube body 111, and before this soft adhesive 113 hardens, a pre-formed silicone tube 114 is covered, and this silicone tube is The soft adhesive 113 is hardened after the outer diameter of the adhesive 114 is minimized.

Therefore, in the above structure, the sub water supply mouthpiece 27 of the sub water supply pipe 25 is disposed on the side of the operating section main body 3a, so that the air/water supply switching valve 22 is closed during the assembly work of the operating section main body 3a. The pipe constituting portion 5a2 of the downstream water supply pipe 5a connected to the second connecting end 10 of the pipe connector 101
1b, and the connection operation between the sub water supply pipe 25 connected to the sub water supply mouthpiece 27 and the third connection end 101c of the pipe line connector 101 can be performed. Therefore, when working to connect the operating part main body 3a side and the grip part 51 side, the first connecting end 101 of the conduit connector 101
Since it is only necessary to perform the connection work between the downstream side water supply pipe 5a and one pipe component 5a1 of the downstream water supply pipe 5a, the downstream water supply pipe 5a connected to the air/water supply switching valve 22 as in the conventional case is
It is possible to omit the complicated pipe connection work for connecting the sub-water supply pipe 25 connected to the sub-water supply pipe 27 to the sub-water supply pipe 27. Therefore, it is possible to facilitate the connection work between the operating section main body 3a side and the grip section 51 side.
It is possible to improve the workability of the connection work between the a side and the grip portion 51 side.

[0050] Furthermore, since the conduit structure within the operating section main body 3a can be simplified compared to the conventional one, the work of brushing and cleaning each of the conduits built into the operating section 3 with a brush is facilitated. Can be done.

Furthermore, the cleaning brush is inserted into the sub-water supply conduit 25 from the sub-water supply cap 27 by removing the sub-water supply port plug 82 attached to the sub-water supply port plug mounting groove 27a of the sub-water supply cap 27. Therefore, it is possible to improve the workability of cleaning the inside of the sub-water supply pipe 25.

Furthermore, by making the sub water supply port plug 82 disposable and always using a new sterilized sub water supply port plug 82 during endoscopy, it is possible to eliminate the risk of infection and improve hygiene. .

Furthermore, since the tube body 111 of the upstream suction conduit 17a, which also serves as the treatment instrument insertion channel 18, is made of a relatively hard synthetic resin material such as Teflon, the inner circumferential surface of the treatment instrument insertion channel 18 is prevented from slipping. It is possible to ensure hardness, abrasion resistance, and smoothness. In addition, a silicon tube 114 is attached to the outer peripheral surface of the tube body 111.
Since this is bonded, it is possible to improve the slipperiness of the outer circumferential surface of the upstream suction pipe 17a.

FIG. 13A shows a lens cleaner unit that prevents the observation window 8 of the objective optical system from fogging up when the endoscope 1 is used. This lens cleaner unit includes a sterilization pack 121 made of, for example, a synthetic resin film, and a cotton swab 12 as shown in FIG. 13(B).
A lens cleaner main body 124 impregnated with a cleaning liquid containing a surfactant is housed in the cotton portion 123 of No. 2 .

Therefore, the lens cleaner body 124 having the above structure is disposable each time it is used, and a new lens cleaner body 124 can always be taken out from the sterilization pack 121 when cleaning the observation window 8, so that it can be stored easily. It is possible to reliably prevent the lens cleaner main body 124 from being contaminated by germs. Furthermore, the lens cleaner body 124 used once
By preventing the lens cleaner body 124 from being reused, it is possible to reliably prevent the lens cleaner body 124 itself from becoming contaminated and infecting the endoscope 1 during the next cleaning operation of the observation window 8 of the endoscope 1. can.

Further, FIG. 14(A) shows a cosmetic soap 133 containing a surfactant that forms the lens cleaner body, formed into a tablet shape, and after sterilization, PTP (press thr
A lens cleaner unit 131 wrapped in a large pack 132 is provided. This PTP1
32 is a housing section 132a for housing the toilet soap 133.
is formed. When using this lens cleaner unit 131, as shown in FIG. 14(B), the housing part 132a of this PTP 132 is pressed with a finger or the like to break the back side and take out the toilet soap 133 inside. . Therefore, in this case as well, the same effect as in FIG. 13 can be obtained.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the invention.

[0058]

[Effects of the Invention] According to the present invention, since the fluid supply port body of the auxiliary fluid supply conduit is arranged on the operating section main body side, the work of connecting the operating section main body side and the grip section side can be facilitated. This makes it possible to improve the workability and the workability of cleaning each conduit built into the operating section.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing the arrangement of internal channels of an endoscope according to an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view of the main parts showing the distal end component of the endoscope.

[Figure 3] This shows the fixed state of the air and water supply nozzle.
(A) is a longitudinal sectional view of the main part showing the state in which the jet nozzle of the air and water supply nozzle is glued and fixed to the tip cover, and (B) is a longitudinal sectional view of the main part showing the state in which the air and water supply nozzle is glued and fixed. FIG. 3 is a longitudinal cross-sectional view of the main part showing a state in which the injection port of the nozzle is adhered and fixed to the tip cover.

FIG. 4 is a perspective view showing the appearance of the operating section.

FIG. 5 is a cross-sectional view showing how the suction switching valve, the air/water switching valve, and the sub-water supply mouthpiece are attached to the operating unit main body.

FIG. 6 is a vertical sectional view of the main parts showing the fixed state of the mounting board.

FIG. 7 is a cross-sectional view showing a state in which the operating section main body and the grip section are connected.

FIG. 8 is a vertical cross-sectional view of the main part showing the connection part between the forceps introduction mouthpiece and the suction connection conduit.

[Fig. 9] Shows the state of connection between the outer case body and the operation part lid; (A) is a longitudinal cross-sectional view of the main part, and (B) is the main part showing the state of fixation between the fixing metal fittings and the protective tube. Cross section.

[Figure 10] This shows the installation status of the sub-water supply port plug.
(A) is a vertical sectional view of the main part showing the state where the sub water supply tube is not connected to the sub water supply port plug, (B) is a plan view showing the slit of the sub water supply port plug, and (C) is the sub water supply port plug. FIG. 3 is a vertical cross-sectional view of the main part showing a state in which the sub-water supply tube is connected to the sub-water supply tube.

FIG. 11 is a vertical cross-sectional view of a main part showing a connecting portion between a water supply pipe and a sub-water supply pipe.

[Figure 12] This shows the treatment instrument insertion channel.
A) is a vertical cross-sectional view, and (B) is a vertical cross-sectional view of the main part, which is an enlarged view of part K in FIG.

FIG. 13 shows the first lens cleaner (
A) is a perspective view showing a lens cleaner unit in which a lens cleaner main body is accommodated in a sterilization pack, and (B) is a perspective view showing a state in which the lens cleaner main body is removed from the sterilization pack.

FIG. 14 shows a second lens cleaner (
A) is a perspective view showing a lens cleaner unit in which a lens cleaner main body is accommodated in a PTP, and (B) is a perspective view showing a state in which the lens cleaner main body is taken out from the PTP.

[Explanation of symbols]

2... Insertion section, 3a... Operating unit main body, 5a... Downstream water supply pipe (fluid supply pipe), 22... Air/water supply switching valve (pipe switching valve), 25... Sub-water supply pipe (sub-fluid supply pipe) Road), 26...
Sub-water supply port, 27...Sub-water supply mouthpiece (fluid supply port body), 51...
grip part.

Claims (1)

[Claims] 1. A hand-held grip part is connected to the operating part main body, and the operating part main body is provided with a conduit switching valve for switching the connection state of a fluid supply pipe extending through the grip part and extending to the insertion part side. In the endoscope, the endoscope is provided with a sub-fluid supply conduit connected to the fluid supply conduit and supplementarily supplies fluid to the fluid supply conduit. An endoscope characterized in that a mouth body is disposed on the side of the operating section main body.