CN103006167B - Fluid circuit switching device shifter and endoscope - Google Patents
Fluid circuit switching device shifter and endoscope Download PDFInfo
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- CN103006167B CN103006167B CN201210311048.5A CN201210311048A CN103006167B CN 103006167 B CN103006167 B CN 103006167B CN 201210311048 A CN201210311048 A CN 201210311048A CN 103006167 B CN103006167 B CN 103006167B
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Abstract
The invention provides a kind of fluid circuit switching device shifter, in the fluid circuit switching device shifter being used in endoscope, when carrying out the handling of piston, the situation that filler contacts with the connecting hole be formed on working cylinder can be prevented, thus can prevent filler from damaging.This fluid circuit switching device shifter possesses: the button with piston and multiple containment member; Along the direction of insertion progressively undergauge and be formed with the working cylinder of the connecting hole be connected with fluid circuit on side of piston; For the stopper limited the lower end position of piston, multiple containment member be progressively attenuate towards front and by working cylinder along axis direction be separated component, the diameter of containment member than piston to carry out the internal diameter of the epimere of the section slidingly contacted little with containment member, and for the more forward side of the lower end position of the containment member slidingly contacted is carried out than with corresponding section respectively in the position of each fluid circuit and the connecting hole that working cylinder connects, thus solve described problem.
Description
Technical field
The present invention relates to for the water button etc. of supplying gas/send of endoscope fluid circuit switching device shifter and have employed the endoscope of this fluid circuit switching device shifter.
Background technology
As everyone knows, endoscope be used in insert human body etc. organism in carry out in the middle of the diagnosis of internal organs or inspection etc.
Endoscope substantially by insert human body insertion section, carry out the operation of the operation of insertion section or the endoscope of water etc. of supplying gas/send operating portion, with to supply gas mechanism, water-absorption mechanism, the formations such as the adapter (LG (LightGuide) adapter) that suction pump etc. connect and general flexible cord (LG bending section) that adapter, operating portion and insertion section are connected.
In addition, insertion section has: the leading section being incorporated with the image unit or illuminating lens etc. with ccd sensor; The bending section of the strip of base end side; Be arranged on the turning part bent between leading section and bending section and according to the operation in the operating portion of endoscope.
As previously mentioned, the image unit with ccd sensor etc., the illuminating lens (observation window) etc. irradiated to check point for the light propagated in the leading section of photoconduction (optical fiber) and photoconduction is incorporated with in the leading section of insertion section.
And then, be also provided with in the leading section of insertion section for the treatment tool of biopsy pliers etc. is inserted by the pliers hole in disposal portion (pliers passage) or for carry out illuminating lens or by the cleaning in disposal portion, body cavity is expanded and/the delivery nozzle (plenum duct) of supplying gas of supplying gas that field of view is broadened etc.
Have have employed supply gas/endoscope of the function of the water of supplying gas/send of delivery nozzle in, generally speaking, flexual flexible pipe is inserted to leading section from adapter by general flexible cord, operating portion and insertion section.Supply from the source of supplying gas be connected with adapter or the air inhaling water source supply or water and eject to the leading section of insertion section by this flexible pipe.
In addition, in operating portion, being provided with (fluid) pipeline reversing service with this soft pipe connection, by operating this pipeline reversing service, thus the on/off supplying gas and send water can being carried out.
This pipeline reversing service is as an example, as as shown in patent documentation 1 or patent documentation 2, comprise with insert from aforesaid adapter to leading section hose connection working cylinder and comprise piston that the axis direction along this working cylinder movably inserts, doctor carries out the button that operates.
In these pipeline reversing services, by the piston of button is inserted working cylinder, and button bearing piece is fixed on the assigned position in endoscopic procedure portion, forms pipeline reversing service thus and be arranged in endoscope.
In the pipeline reversing service of endoscope, by the obturation of the pressing (pressure) of button or release, the air tap be formed on button and button head or release etc., the operation of the button that make use of button head, thus the on/off can carrying out supplying gas, send the on/off of water, supply gas and send the switching etc. of water.
In addition, the periphery of piston is provided with the roughly cylindric filler (containment member) be separated along axis direction in the space between working cylinder and piston.
In pipeline reversing service, be separated by the stream of this filler by the water formed in the space between working cylinder with piston and air, and carry out the switching for the stream in the pipeline reversing service of the flexible pipe be connected with working cylinder based on the operation of button.
[at first technical literature]
[patent documentation]
[patent documentation 1]: Japanese Unexamined Patent Publication 9-294714 publication
[patent documentation 2]: Japanese Unexamined Patent Publication 2005-006822 publication
In pipeline reversing service as described above, when the operation by button makes piston move, when filler contacts with the connecting hole be formed on working cylinder (being connected with the hole of fluid circuit), damage can be attached with to filler.Therefore, as described in Patent Document 2, by forming connecting hole in the position making the region of filler movement different from the operation by button, do not contact with connecting hole to make filler.
But, in endoscope apparatus, need when carrying out the inspection based on endoscope at every turn the cleaning carrying out endoscope.When carrying out the cleaning of endoscope, piston (button) being unloaded down from working cylinder and cleans, and again piston (button) being assembled in working cylinder after the washing.
In endoscope apparatus, because the frequency of the handling carrying out piston is many, therefore when carrying out the handling of piston in the cleaning in order to carry out endoscope, when filler contacts with the connecting hole on the internal diameter being formed in working cylinder, still can to filler additional injury, cause the reduction of sealing property or the fracture of filler, thus likely cannot carry out the switching of suitable pipeline.
But, when the handling of piston, and reckon without the situation that filler contacts with the connecting hole be formed on working cylinder.
Summary of the invention
Target of the present invention is problem points in order to solve described prior art and provides the fluid circuit switching device shifter of a kind of utilization in water button of supplying gas/send of endoscope etc., in the fluid circuit switching device shifter of endoscope-use, when loading and unloading piston, prevent the filler of piston from contacting with the connecting hole be formed on working cylinder, the reduction of sealing property preventing the damage of filler from bringing or the fracture of filler, thus the switching suitably can carrying out pipeline.
In order to realize described target, the invention provides a kind of fluid circuit switching device shifter, be connected with the fluid circuit of endoscope and the connected state of multiple fluid circuit is switched, it is characterized in that, have: button, it has piston and is arranged on the multiple containment members on piston; Working cylinder, it inserts for piston, along the direction of insertion progressively undergauge of piston, and on side, is formed with the connecting hole be connected respectively with multiple fluid circuit; Stopper, it is for limiting lower end position when being pressed in working cylinder by piston, multiple containment member be progressively attenuate towards the front of the direction of insertion of piston and working cylinder inner surface with between outer surface of piston by working cylinder along the component that axis direction is separated, and the diameter of containment member than piston to carry out the internal diameter of the epimere of the section slidingly contacted little with containment member, for the more forward side of the lower end position of the containment member slidingly contacted is carried out than with corresponding section respectively in the position of each fluid circuit and the connecting hole that working cylinder connects.
In such the present invention, preferably, piston has the axial separation configuration along piston and more forward side configures four containment members more diminished, and working cylinder has four regions of carrying out respectively with four of piston containment members slidingly contacting, and is respectively: the first area of front; Adjoin with first area and the second area in footpath larger than first area; Adjoin with second area and the 3rd region in footpath larger than second area; With the 3rd area adjacency and than the 4th region in the 3rd large footpath, region.
In addition, preferably, multiple fluid circuit is four fluid circuits, and respectively with bottom, second area, the 3rd region, the 4th joint area.
In addition, preferably, described working cylinder has bottom in front, and the region between first area and bottom forms to obtain footpath larger than first area.
In addition, preferably, stopper is the component abutting with the step on the border as second area and the 3rd region and limit the lower end position of piston, and for abutting with the step on the border as second area and the 3rd region on lower end position and the containment member hermetic will be separated between second area with the 3rd region.
In addition, preferably, piston has slide block, and this slide block contacts with the inner surface of working cylinder all the time, and guides piston to make it only move along the axis direction of working cylinder.
In addition, the invention provides a kind of endoscope, have and be inserted into endoceliac insertion section, for ejecting multiple pipeline of fluid and the fluid circuit switching device shifter for changing the fluid ejected from leading section from the leading section of this insertion section, and by insertion section is inserted in body cavity, observed portion is observed, it is characterized in that, fluid circuit switching device shifter has: button, and it has piston and is arranged on the multiple containment members on piston; Working cylinder, it inserts for piston, along the direction of insertion progressively undergauge of piston, and on side, is formed with the connecting hole be connected respectively with multiple fluid circuit; Stopper, it is for limiting lower end position when being pressed in working cylinder by piston, multiple containment member be progressively attenuate towards the front of the direction of insertion of piston and working cylinder inner surface with between outer surface of piston by working cylinder along the component that axis direction is separated, the diameter of containment member than piston to carry out the internal diameter of the epimere of the section slidingly contacted little with containment member, and for the more forward side of the lower end position of the containment member slidingly contacted is carried out than with corresponding section respectively in the position of each fluid circuit and the connecting hole that working cylinder connects.
In such endoscope of the present invention, preferably, the piston of fluid circuit switching device shifter has the axial separation configuration along piston and more forward side configures four containment members more diminished, working cylinder has four regions of carrying out respectively with four of piston containment members slidingly contacting, and is respectively: the first area of front; Adjoin with first area and the second area in footpath larger than first area; Adjoin with second area and the 3rd region in footpath larger than second area; With the 3rd area adjacency and than the 4th region in the 3rd large footpath, region.
In addition, preferably, multiple fluid circuit is four fluid circuits, and respectively with bottom, second area, the 3rd region, the 4th joint area.
In addition, preferably, working cylinder has bottom in front, and the region between first area and bottom forms to obtain footpath larger than first area.
In addition, preferably, stopper is the component abutting with the step on the border as second area and the 3rd region and limit the lower end position of piston, and for abutting with the step on the border as second area and the 3rd region on lower end position and the containment member hermetic will be separated between second area with the 3rd region.
In addition, preferably, piston has slide block, and this slide block contacts with the inner surface of working cylinder all the time, and guides piston to make it only move along the axis direction of working cylinder.
Invention effect
As mentioned above, fluid circuit switching device shifter of the present invention is utilize the component in the middle of the water button of supplying gas/send etc. of endoscope, its by be connected with multiple fluid circuit working cylinder and with can the piston (button) inserted in working cylinder be formed along the state of axis direction movement.
Structure of the present invention is, possesses: the button with piston and multiple containment member in the fluid circuit switching device shifter of such endoscope-use; Along the direction of insertion progressively undergauge and be formed with the working cylinder of the connecting hole be connected with fluid circuit on side of piston; For the stopper limited the lower end position of piston, multiple containment member be progressively attenuate towards front and by working cylinder along axis direction be separated component, the diameter of containment member than piston to carry out the internal diameter of the epimere of the section slidingly contacted little with containment member, and for the more forward side of the lower end position of the containment member slidingly contacted is carried out than with corresponding section respectively in the position of each fluid circuit and the connecting hole that working cylinder connects.
Therefore, according to the present invention, when carrying out the handling of piston, the situation that the filler of piston contacts with the connecting hole be formed on working cylinder can be prevented.Therefore, it is possible to the situation of the reduction of sealing property preventing the damage of filler from bringing or the fracture of filler, thus suitably can carry out the switching of pipeline.In addition, due to the damage of filler can be prevented, therefore the long lifetime of filler can be realized.
Accompanying drawing explanation
Fig. 1 is the figure of the example conceptually representing the endoscope of the present invention utilizing fluid circuit switching device shifter of the present invention.
Fig. 2 is the concept map of the leading section of the insertion section of the endoscope shown in Fig. 1.
Fig. 3 is the concept map for the fluid circuit in endoscope.
Fig. 4 (A) is the figure conceptually represented for the button of water button of supplying gas/send in the endoscope shown in Fig. 1 and the section of button bearing piece, and Fig. 4 (B) is the figure of the section conceptually representing this water button of supplying gas/send.
Fig. 5 (A) and (B) are for the concept map be described for the effect of supplying gas/sending water button in the endoscope shown in Fig. 1.
Symbol description
10 endoscopies
12 insertion sections
14 operating portions
14a wall portion
16 general flexible cords
18LG adapter
20 video-frequency connectors
24 leading sections
26 turning parts
28 bending sections
32 forceps channels
34 attract button
36 supply gas/send water button
38LR knob
40UD knob
42LR brake
46UD brake
48 attract adapter
48L attraction channel
50 send water connector
50i, 52i inflow entrance
50j flow export
50L send aquaporin
52 supply gas adapter
52j outlet
52L plenum duct
54LG bar
60 illuminating lenss
62 pliers holes
62L pliers passage
64 supply gas/delivery nozzle
64L supplies gas/send aquaporin
68 buttons
70 button bearing pieces
72 working cylinders
72a large-diameter area
72b central diameter region
72c path region
The most path region of 72d
72e water introduction part
76 pistons
76a minor diameter part
76b elongated hole
76c, 76d, 78a, 98a through hole
78 button heads
80a rib
80b, 80c, 84,90 recesses
80d flange
82a, 82b, 82c, 82d filler
86 slide blocks
92 baffle plates
98 (button bearing piece) main body
100 mounting cups
Detailed description of the invention
Below, according to the preferred embodiment shown in the accompanying drawing added, fluid circuit switching device shifter of the present invention and endoscope are described in detail.
An example of the endoscope of the present invention utilizing fluid circuit switching device shifter of the present invention is conceptually illustrated in Fig. 1.
Endoscope 10 shown in Fig. 1 carries out in the treatment of body cavity (digestive tube, otorhinolaryngology etc.) etc. or the disposal portion of inspection for being inserted in, thus carries out the component of disposal etc. of observation in body, still image or the photography of dynamic image, the collection of bio-tissue etc.
Endoscope 10 is so-called " endoscope of electronic observation type " of photography adopting ccd sensor the image of check point to be carried out to the observation of check point, dynamic image or still image as shooting (photography).This endoscope 10, in the same manner as common endoscope, has insertion section 12, operating portion 14, general flexible cord 16, LG adapter 18 and video-frequency connector 20.
In addition, insertion section 12 is inserted in the check point waited in body cavity, and it has the leading section 24 of front end (end opposite of the front end=operating portion 14 of inserting side), turning part 26 and bending section 28 on the position of strip in the same manner as known endoscope.
Operating portion 14 is the position that endoscope 10 carries out operating.
In the same manner as common endoscope, in operating portion 14, be configured with forceps channel 32, for carrying out from the attraction button 34 of the attraction of leading section 24 and for carrying out supplying gas and sending the water button 36 etc. of supplying gas/send of water from leading section 24.
This water button of supplying gas/send is the fluid circuit switching device shifter of endoscope-use of the present invention.Endoscope 10, except as the water button 36 and utilize except fluid circuit switching device shifter of the present invention of supplying gas/send being located at operating portion 14, is essentially known endoscope.
Also be provided with in operating portion 14 turning part 26 is bent in the lateral direction LR knob 38, make this turning part 26 UD knob 40 that vertically (direction orthogonal with described left and right) is bending and for keeping LR brake 42 and the UD brake 46 of turning part 26 in the bent state.
And then, in as the endoscope 10 of electronic observation device except these operating mechanisms, be also provided with Zoom switch, the photography switch of still image, the photography switch of dynamic image, the switch etc. that fixes, the various switches that adopt image unit (ccd sensor) to have the endoscope that image is observed/photographed.
LG (LightGuide: photoconduction) adapter 18 be for by the attraction source used in the facility of endoscope, send water source, source of supplying gas etc. and endoscope 10 carry out the position that is connected.Therefore, be provided with in LG adapter 18 the attraction adapter 48 for endoscope 10 is connected with attraction source (attracting mechanism), for by this endoscope 10 with send water source (watering=water-absorption mechanism) to be connected send water connector 50 and the adapter 52 etc. of supplying gas for this endoscope 10 being connected with the source of supplying gas (mechanism of supplying gas).
In addition, in LG adapter 18, being provided with LG bar 54 for connecting lighting source or connecting the S terminal etc. of S flexible cord when using electric mes.
As previously mentioned, endoscope 10 is electronic observation device, therefore on LG adapter 18, be connected with the video-frequency connector 20 with being connected with endoscope 10 by processor device.The various instructions that ccd sensor 52 is made a video recording in the image (view data) or operating portion 14 that arrive by data cable, and via this LG adapter 18 from video-frequency connector 20 to outputs such as processor devices.
General flexible cord (LG bending section) 16 is the position be connected with operating portion 14 by LG adapter 18.
Accommodate/insert in this general flexible cord 16 and the attraction channel 48L, photoconduction, data cable etc. that send Aquaporin-5 0L, the plenum duct 52L be connected with adapter 52 of supplying gas, be connected with attraction adapter 48 that send water connector 50 to be connected.
As previously mentioned, the insertion section 12 of endoscope 10 has leading section 24, turning part 26 and bending section 28 and forms.
Turning part (bending section) 26 is to make leading section 24 insert to target location or being arranged in target location and by the operation of the LR knob 38 of operating portion 14 etc. up and down and left and right (4 orthogonal directions) bending region.
Bending section 28 is the position linked in leading section 24 and turning part 26 and operating portion 14, and it presents the shape relative to the insertion to check point with sufficient flexual strip.
The front (front end face of insertion section 12) of leading section 24 is conceptually illustrated in Fig. 2.
In the endoscope 10 of illustrated example, in leading section 24, be incorporated with the photographic lens 58 and illuminating lens 60 with image unit.
Blocking is realized by the element needed for the photography that loads ccd sensor or photographic lens 58 etc. or optics etc.The holding wire of the image of photographing for carrying image unit is via insertion section 12 (turning part 26 and bending section 28), operating portion 14, general flexible cord 16, LG adapter 18 and insert to video-frequency connector 20.
The lens that illuminating lens 60 irradiates to examined portion for the light for being propagated by photoconduction (such as thin optic fibre bundle).Photoconduction inserted insertion section 12 (ditto), operating portion 14, general flexible cord 16 and the LG bar 54 inserted to LG adapter 18.
In addition, pliers hole 62 is formed in the leading section 24 of insertion section 12, for carrying out supplying gas and sending/the delivery nozzle 64 of supplying gas of water.
The fluid circuit in endoscope 10 is conceptually illustrated in Fig. 3.
Aforesaid forceps channel 32 is communicated with pliers hole 62 by pliers passage 32L.
The attraction adapter 48 of LG adapter 18 is connected with attraction channel 48L.Attraction channel 48L inserted general flexible cord 16 from LG adapter 18 and arrived operating portion 14, and was connected with attraction button 34 in operating portion 14.And then attraction channel 48L is connected from attraction button 34 with pliers passage 32L.
In addition, the water connector 50 that send of LG adapter 18 is connected with sending Aquaporin-5 0L.Send Aquaporin-5 0L inserted general flexible cord 16 from LG adapter 18 and arrived operating portion 14, and be connected with water button 36 of supplying gas/send in operating portion 14.And then, send Aquaporin-5 0L to be connected from water button 36 of supplying gas/send with the aquaporin 64L that supplies gas/send.
On the other hand, the adapter 52 of supplying gas of LG adapter 18 is connected with plenum duct 52L.Plenum duct 52L also inserted general flexible cord 16 and arrived operating portion 14, and was connected with water button 36 of supplying gas/send in operating portion 14.And then plenum duct 52L is also connected from water button 36 of supplying gas/send with the aquaporin 64L that supplies gas/send.
Be connected with and send the aquaporin 64L that supplies gas/send of Aquaporin-5 0L and plenum duct 52L to insert insertion section 12 (bending section 28 and turning part 24), and in the leading section 24 of insertion section 12 with supply gas/delivery nozzle 64 is connected.
The general profile chart of this water button 36 of supplying gas/send has been shown in Fig. 4.
This water button 36 of supplying gas/send is made up of button 68, button bearing piece 70 and working cylinder 72 substantially.It should be noted that, in the diagram, figure (A) represents button 68 and button bearing piece 70, figure (B) represent comprise working cylinder 72, water button 36 of supplying gas/send is loaded into the state of the operating portion 14 of endoscope 10.
As shown in Fig. 4 (B), working cylinder 72 is the inaccessible and component in metal general cylindrical shape of lower surface.It should be noted that, in the present invention, D score refers to the private side (that is, the pressing direction of button 68) of endoscope 10 (operating portion 14), " on " refer to the outer side (that is, from the release direction of this pressing) of endoscope 10.
Be formed with circular through hole in endoscope 10 in the assigned position of operating portion 14 and erect around this through hole and be provided with cylindric wall portion 14a.Ridge is formed at the inner surface of this wall portion 14a.On the other hand, also ridge is formed with in the upper-end outer surface of working cylinder 72.In endoscope 10, by screwing togather the outer surface of the upper end of working cylinder 72 at the inner surface of this wall portion 14a, thus working cylinder 72 is fixed on operating portion 14.
Working cylinder 72 has bottom, its inside towards axis direction below and make diameter diminish (large-diameter area 72a, central diameter region 72b, path region 72c and most path region 72d) gradually in four-stage, and to become large (water introduction part 72e) at lowest end diameter.
It should be noted that, working cylinder 72 is consistent with the axis direction (centerline direction) of the piston 76 of button 68 described later, therefore in the following description, is only referred to as " axis direction " in this direction.
In working cylinder 72, be formed with the inflow entrance 50i of water at the water introduction part 72e of lowest end, and be connected with at this entrance side sending Aquaporin-5 0L.In addition, be formed with the flow export 50j of water in the bottom of path region 72c, and be connected with at this outlet side sending Aquaporin-5 0L.
And then, in working cylinder 72, be formed with the inflow entrance 52i of air in the bottom of central diameter region 72b, and be connected with the entrance side of plenum duct 52L at this.In addition, be formed with the outlet 52j of air at large-diameter area 72a, and be connected with the outlet side of plenum duct 52L at this.
Button 68 is made up of piston 76 and button head 78.
Piston 76 is the component of metal roughly cylinder, and is configured to minor diameter part 76a near bottom.Piston 76 except a part for upper end, all can be housed in working cylinder 72 along the mode of axis direction movement.
In addition, the elongated hole 76b (perforation) extended along axis direction is formed at the center of piston 76.As shown in Fig. 4 (B), under the state that this elongated hole 76b is not pressed at button 68, be formed as lower end and be positioned near the bottom of central diameter region 72b of working cylinder 72.
In addition, the lower end of elongated hole 76b is formed as, and is positioned at the path region 72c (with reference to figure 5 (B)) of working cylinder 72 when button 68 is pressed into bottom.
It should be noted that, in the following description, conveniently, the state that button 68 is not pressed be referred to as " settling position ", state button 68 being pressed into bottom is referred to as " pressing position (lower end position) ".
Be formed with two through hole 76c and 76d isolated in the axial direction in the through mode to elongated hole 76b in piston 76.
The through hole 76c of top is formed as, and is positioned at the large-diameter portion 72a of working cylinder 72, and under pressing position, is positioned at the central diameter region 72b of working cylinder 72 under settling position.
The through hole 76d of downside is formed on the bottom of elongated hole 76b.As previously mentioned, at steady state, the lower end part of elongated hole 76b is in the bottom of central diameter region 72b.Thus, the through hole 76d on the downside of this, under pressing position, is positioned at the path region 72c of working cylinder 72.
Two the rib 80a isolated in the axial direction are circumferentially formed the whole of the bottom of piston 76.In addition, between this rib 80a, embed/maintain cylindric filler (containment member) 82a, this filler 82a has protuberance in periphery.
Filler 82a is by rubber or have elastic resin to be formed.This filler 82a is by abutting with the whole circumference of the inner surface of working cylinder 72, thus the space between working cylinder 72 inner surface and piston 76 outer surface is liquid-tight and be separated airtightly along axis direction.
In addition, the abutting part at least abutted with working cylinder inner surface in filler 82a, under settling position and pressing position, also can be formed as being positioned at assigned position shown below.
About this point, filler (containment member) 82b ~ 82d for other is also same.
Rib 80a and filler 82a is formed as, and under settling position, filler 82a is positioned at the most path region 72d of working cylinder 72, and filler 82a is positioned at the water introduction part 72e of working cylinder 72 under pressing position.
In addition, the external diameter (maximum diameter) of filler 82a is larger and less than the internal diameter of water introduction part 72e than the internal diameter of most path region 72d.That is, filler 82a is liquid-tight and be separated airtightly along axis direction by the space between working cylinder 72 inner surface of most path region 72d and piston 76 outer surface.
It should be noted that, in the following description, conveniently, space between working cylinder 72 inner surface and piston 76 outer surface is referred to as " in working cylinder 72 ", the liquid-tight and airtight separation of the axis direction in this working cylinder 72 realized by filler is referred to as " being separated along axis direction ".
Whole directly over the minor diameter part 76a of piston 76 is circumferentially formed with recess 80b.In this recess 80b, embed/maintain the filler 82b of the cylindrical shape in periphery with protuberance.
Recess 82b and filler 82b is formed as, and filler 82b all the time (no matter being under settling position or under pressing position) is positioned at the path region 72c of working cylinder 72.In addition, the external diameter of filler 82b is larger than the internal diameter of path region 72c.That is, the path region 72c in working cylinder 72 is separated along axis direction by filler 82b.
Whole on the recess 80b of piston 76 and between through hole 76c and 76d is circumferentially formed with recess 80c.In this recess 80c, embed/maintain the filler 82c of the cylindrical shape in periphery with protuberance.
Recess 80c and filler 82c is formed as, and filler 82c is positioned at central diameter region 72b all the time.The external diameter of filler 82c is larger than the internal diameter of central diameter region 72b.That is, the central diameter region 72b in working cylinder 72 is separated along axis direction by filler 82c.
In addition, recess 80c and filler 82c is formed as, and under pressing position, the bottom of filler 82c abuts with the step of the boundary line of the central diameter region 72b and path region 72c that are configured to working cylinder 72, and is separated in working cylinder 72 along axis direction under this position.
That is, filler 82c also has the effect as the stopper for limiting the pressing position (lower end position) of button 86 (piston 76).
The flange part 80d at upper and lower side with rib is formed on the recess 80c of piston 76 and the through hole 76c of upside.Between the rib of this flange part 80d, embed/maintain the filler 82d in periphery with the cylindrical shape of protuberance.
Flange part 80 and filler 82d are formed as, and filler 82d is positioned at the large-diameter area 72a of working cylinder 72 all the time.In addition, the external diameter of filler 82d is larger than the internal diameter of large-diameter area 72a.That is, the large-diameter area 72a in working cylinder 72 is separated along axis direction by filler 82d.
As previously mentioned, the inside of working cylinder 72 is large-diameter area 72a, central diameter region 72b, path region 72c and most path region 72d from upper progressively undergauge.
In addition, as mentioned above, for the filler be arranged on piston 76, large-diameter area 72a is separated along axis direction by the filler 82d of topmost, central diameter region 72b is separated along axis direction by the filler 82c below it, path region 72c is separated along axis direction by the filler 82b below it, and most path region 72d is separated along axis direction by filler 82a below it.
That is, in illustrated example, progressively undergauge downward in working cylinder 72, be arranged on filler on piston 76 also with its correspondingly, make downward external diameter diminish.
As described above, in endoscope apparatus, each checked by endoscope time need to carry out the cleaning of endoscope.When carrying out the cleaning of endoscope, piston (button) being unloaded down from working cylinder and cleans, after the washing, again piston (button) being assembled on working cylinder.
Like this, in endoscope apparatus, because the frequency of the handling carrying out piston is many, therefore when carrying out the handling of piston in the cleaning in order to carry out endoscope, when filler contacts with the connecting hole on the internal diameter being formed in working cylinder, to filler additional injury, the reduction of sealing property or the fracture of filler can be caused, thus likely cannot carry out the switching of suitable pipeline.
Corresponding thereto, structure of the present invention is, progressively undergauge downward in working cylinder 72, be arranged on filler on piston 76 also correspondingly, be formed as the shape making downward external diameter diminish, and make the link position of fluid circuit carry out the pressing position (lower end position) of the filler slidingly contacted more on the lower (front) than with corresponding section respectively, thus when button 68 (piston 76) is loaded working cylinder 72, filler and the inflow entrance 50i be formed on the inner surface of working cylinder 72 can be prevented, 52i, flow export 50j and outlet 52j (namely, connecting hole) edge situation about slidingly contacting.
Namely, according to this structure, when button 68 being unloaded in the cleaning in order to carry out endoscope 10 etc. and wait again button installation 68 after cleaning terminates, can prevent from producing damage to filler in the connecting hole (edge etc. in hole) in working cylinder 72, can prevent the reduction of sealing property or the fracture of filler, thus can suitably carry out can the switching of pipeline.In addition, due to the damage of filler can be prevented, therefore the long lifetime of filler can be realized.
Piston 76, whole between recess 80b (filler 82b) and the bottom of elongated hole 76b be circumferentially formed with recess 84.In this recess 84, embed/maintain roughly cylindric slide block 86.
Slide block 86 is the resinous component of hard.In addition, recess 84 and slide block 86 are formed as, and slide block 86 is positioned at the path region 72c of working cylinder 72 all the time.
At this, slide block 86 has the path region 72c and the external diameter roughly the same with the internal diameter of path region 72c that can insert working cylinder 72.Thus, when pressing button 68/discharge, slide block 86 abuts with the whole circumference of the path region 72c inner peripheral surface of working cylinder 72, and carries out slidingly contacting and moving along axis direction.
That is, slide block 86 is the guiding elements guided the movement of button 68 (piston 76), and it carrys out call-on button 68 only to make button 68 along the mode of axis direction movement.
And then, on the recess 80c (filler 82c) of piston 76, be formed with recess 90.In this recess 90, embed/maintain baffle plate 92.
Baffle plate 92 is bottom wall thickness and the component of the roughly cylindric rubber of undergauge gradually near upper end.Baffle plate 92 embeds in recess 90 by making the wall thickness of its bottom, thus remains on piston 76.In addition, recess 90 and baffle plate 92 are formed as, and baffle plate 92 covers the through hole 76c of the upside of piston 76, and the upper end of baffle plate 92 abuts with the whole circumference in the periphery of piston on through hole 76c.
This baffle plate 92 has and is similar to the such effect of the valve rubber (valverubber) that uses in the tire of so-called bicycle.
That is, baffle plate 92 to be abutted with the outer peripheral face of piston 76 by upper end and covers through hole 76c airtightly, but its upper end is configured to free end.Therefore, baffle plate 92, when from through hole 76c air-out, makes upper end broaden due to the pressure from inside, and air is discharged to the outside of baffle plate 92.On the contrary, when being applied with pressure to baffle plate 92 from outside, keeping the state being covered with through hole 76c, thus playing a role as check-valves.
It should be noted that, in illustrated example, baffle plate 92 and the filler 82c split below it are formed, but the present invention is not limited thereto.
That is, according to working cylinder 72 or the shape of piston 76 or the difference of structure, baffle plate 92 and the filler 82c below it also can be integrally formed.
The button head 78 of the upper end covering piston 76 is installed in the upper end of button 68.Button head 78 (its upper surface) in the middle of the diagnosis etc. that have employed endoscope 10 doctor directly contact and position that water button 36 of supplying gas/send is operated.
In illustrated example, button head 78 is few in two stages ground Zhu Jian Minus downward and have the roughly cylindric component of through hole at center for external diameter, and it is such as arranged on by screwing togather on the upper end of piston 76.Button head 78 is formed by resin etc. usually.
As an example, in the through hole of button head 78, top is configured to minor diameter part 78a, and below is configured to large-diameter portion 78b, and the upper end of the large-diameter portion 78b of below and piston 76 screws togather.
On the other hand, the minor diameter part 78a of the top of the through hole of button head 78 is when being arranged on piston 76 consistent with the elongated hole 76b be formed in piston 76 (connection) by button head 78.
Button 68 for can move along axis direction for being remained by button 68, and is arranged on the component on the operating portion 14 (wall portion 14a) of endoscope 10 by button bearing piece 70.
In illustrated example, button bearing piece 70 is made up of the mounting cup 100 of the button bearing piece main body 98 and this button bearing piece main body 98 coating of inserting button 68.
Button bearing piece main body 98 (following, to be referred to as " main body 98 ") is metal component, and it has dual pipe shape (toroidal that section is a substantially U-shaped) inaccessible near bottom.That is, main body 98 has circular through hole 98a at center.
Button 68 is inserted through in this through hole 98a, and can be maintained on button bearing piece 70 along the mode of axis direction movement.
At this, as shown in Figure 4, the external diameter of the second segment (hypomere of axis direction) of button head 78 is larger than the internal diameter of the through hole 98a of main body 98.In addition, the external diameter being provided with the flange 80d of the filler 82d of the top of piston 76 is also large than the internal diameter of the through hole 98a of main body 98.
Thus, button 68 can not by mistake come off from main body 98 (button bearing piece 70).
In addition, spring 102 is configured with between the lower surface in the inaccessible face near the bottom of main body 98 and the maximum diameter portion of button head 78.
This spring 102 pairs of button heads 78 exert a force upward.Button 68 is exerted a force upward by this spring 102, and the position abutted with the lower surface (forming the lower end of the cylinder of through hole 98a) of main body 98 at flange 80d stops, thus remains on settling position.
Mounting cup 100 is the roughly cylindric component of rubber.
This mounting cup 100 in cylinder above, the button bearing piece main body 98 of described dual pipe shape is accommodated/is coated to, thus the elasticity by self carrys out hold button bearing piece main body 98.
In addition, the internal diameter of mounting cup 100 is roughly the same with the external diameter of the wall portion 14a of the cylindrical shape be formed on aforesaid operating portion 14.And then.At the whole installation portion 100a being circumferentially formed with convex of the inner lower end position of mounting cup 100.
As previously mentioned, mounting cup 100 cylindrically and contain wherein dual pipe structure main body 98.Thus, by carrying out coating wall portion 14a by mounting cup 100, thus the through hole 98a of main body 98 is communicated with the working cylinder 72 be arranged on wall portion 14a is interior.
The piston 76 of button 68 is inserted working cylinder 72 by the water button 36 of supplying gas/send of illustrated example, the coating outside being formed at the wall portion 14a of operating portion 14, and engages with the installation portion 100a of mounting cup 100 and wall portion 14a.
Supplying gas/sending in water button 36, operating portion 14 Shangdi whereby button 68 and button bearing piece 70 being detachably arranged on endoscope 10 forms water button 36 of supplying gas/send.
It should be noted that, in illustrated example, button bearing piece 70 is formed by the mounting cup 100 of metal main body 98 and this main body 90 coating, but the present invention is not limited thereto.
That is, in the present invention, the button bearing piece inserting button 68 also can be such as integrally formed by the shaping etc. that make use of resin.Now, button bearing piece to handling being fitted through freely of endoscope same with button bearing piece 70 utilize elastic method, utilize screw togather or the concavo-convex installation being fitted together to, have employed fixed component etc., known method carries out.
Below, with reference to figure 5, by being described the effect of water button 36 of supplying gas/send, thus liquid line switching device shifter of the present invention is illustrated in greater detail.
As shown in Fig. 5 (A) (Fig. 4 (B)), at steady state, button 68 by spring 102 effect and exerted a force upward and kept.
At steady state, the water introduction part 72e from the water sending Aquaporin-5 0L to supply from inflow entrance 50i to working cylinder 72 send water.
At steady state, the filler 82a being configured in the bottom of piston 76 is positioned at the most path region 72d on water introduction part 72e.As previously mentioned, this filler 82a, at the assigned position place of most path region 72d, is separated in working cylinder 72 along axis direction.
Thus, at steady state, the water sending into water introduction part 72e stops in this water introduction part 72e, does not carry out sending water to position in addition.
On the other hand, the air supplied from plenum duct 52L is supplied gas in working cylinder 72 from introducing port 52i.
At steady state, the position being formed with this introducing port 52i is in the below of introducing port 52i, and working cylinder 72 is separated along axis direction by the filler 82b being positioned at path region 72c.On the other hand, above introducing port 52i, working cylinder 72 is separated along axis direction by the filler 82c being positioned at central diameter region 72b.
Thus, the air of supplying gas in working cylinder 72 from introducing port 52i is supplied gas from the through hole 76d of the bottom being positioned at central diameter region 72b to the elongated hole 76b of piston 76, and the outside to water button 36 (button 68) of supplying gas/send is discharged via elongated hole 76b and the through hole 78a of button head 78.
At this, under this steady statue, the doctor that endoscope 10 carries out operating carrys out the through hole 78a of block push button head 78 by finger.
Thus, the air sent in the elongated hole 76b of piston 76 loses whereabouts, from the through hole 76c of the upside of piston 76, companding carried out to baffle plate 92 and supply gas in working cylinder 72, and supplying gas from being formed in the plenum duct 52L of the outlet 52j working cylinder 72 to outlet side.
The air sent in plenum duct 52L is then supplied gas to the aquaporin 64L that supplies gas/send, and from supplying gas/and delivery nozzle 64 ejects.
And then, when doctor presses button head 78, be configured to the pressed state shown in Fig. 5 (B).
In this condition, in most path region 72d by the filler 82a be separated along axis direction in working cylinder 72 to it below water introduction part 72e move.As previously mentioned, the diameter of filler 82a is less than the internal diameter of water introduction part 72e.Thus, the water sent in water introduction part 72e is fed through and is separated by the filler 82b of most path region 72d and path region 72c the region obtained.
At this, be formed with flow export 50j in the bottom of the path region 72c of working cylinder 72, and be connected with the outlet side sending Aquaporin-5 0L herein.Thus, the water sent in the 72c of path region send water to sending Aquaporin-5 0L.
The water in Aquaporin-5 0L is sent then to send water to the aquaporin 64L that supplies gas/send, and from supplying gas/delivery nozzle 64 ejects.
At this, as previously mentioned, filler 82c, under pressing position, makes the bottom of filler 82c abut with the step of the boundary line of the central diameter region 72b and path region 72c と that are configured to working cylinder 72, thus is separated in working cylinder 72 along axis direction in this position.
In addition, under pressed state, the through hole 76d of downside is positioned at path region 72c.On this basis, water is stopped by the filler 82b being positioned at the below of through hole 76c.
Thus, under pressed state, the air of supplying gas out from the inflow entrance 52i be connected with plenum duct 52L can not be supplied gas from through hole 76c to the elongated hole 76b in piston 76.That is, according to supplying gas/sending water button 36, under pressed state, can cover and supply gas and suitably only send water.
And then when the pressing of doctor's release-push head 78, under the effect of spring 102, button 68 is moved upward and is configured to steady statue.
Then, the handling about piston 76 (button 68) illustrate in greater detail.
As shown in Fig. 4 (B), in the most path region 72d that the filler 82a of front slidingly contacts, do not form the connecting hole be connected with fluid circuit, in addition, the internal diameter of the working cylinder 72 in the region more closer to the top than most path region 72d is larger than filler 82a.Thus, when loading and unloading piston 76, filler 82a can not contact with connecting hole (flow export 50j etc.).
Then, be formed and the outlet 50j sending Aquaporin-5 0L to be connected in the path region 72c that slidingly contacts of filler 82b of the second order from front.As shown in Fig. 5 (B), this outlet 50j is formed in the position of filler 82b when being in pressing position than piston 76 more on the lower (front).Thus, do not form in the upside of the filler 82b of path region 72c the connecting hole be connected with fluid circuit, in addition, the internal diameter of the working cylinder 72 in the region more closer to the top than path region 72c is larger than filler 82b.Thus, when loading and unloading piston 76, filler 82b can not contact with connecting hole (inflow entrance 52i etc.).
Similarly, in the central diameter region 72b that slidingly contacts of filler 82c of the 3rd order from front, the inflow entrance 52i be connected with plenum duct 52L is formed with.As shown in Fig. 5 (B), this inflow entrance 52i is formed in the position of filler 82c when being in pressing position than piston 76 more on the lower (front).Thus, do not form in the upside of the filler 82c of central diameter region 72b the connecting hole be connected with fluid circuit, in addition, the internal diameter of the working cylinder 72 in the region more closer to the top than central diameter region 72b is larger than filler 82c.Thus, when loading and unloading piston 76, filler 82c can not contact with connecting hole (outlet 52j etc.).
In addition, in the large-diameter area 72a that slidingly contacts of filler 82 of the 4th order (the top) from front, the outlet 52j be connected with plenum duct 52L is formed with.As shown in Fig. 5 (B), this outlet 52j is formed in the position of filler 82d when being in pressing position than piston 76 more on the lower (front).Thus, do not form in the upside of the filler 82d of large-diameter area 72a the connecting hole be connected with fluid circuit.Thus, when loading and unloading piston 76, filler 82d can not contact with connecting hole (outlet 52j etc.).
Like this, according to structure of the present invention, when button 68 being unloaded in the cleaning in order to carry out endoscope 10 etc. and wait again button installation 68 after cleaning terminates, the situation that the edge etc. due to the connecting hole in working cylinder 72 makes filler damage can be prevented, need in the endoscope apparatus carrying out cleaning carrying out checking at every turn, the damage of filler when can prevent the handling of piston, can prevent the reduction of sealing property or the fracture of filler, thus suitably can carry out the switching of pipeline.In addition, due to the damage of filler can be prevented, therefore the long lifetime of filler can be realized.
Above, the liquid line switching device shifter of endoscope-use of the present invention and endoscope are explained, but the present invention is not limited to above-described embodiment, in the scope not exceeding purport of the present invention, various changes can be carried out or improvement is self-evident.
[industrial applicibility]
Can preferably utilize in the endoscope for various diagnosis and treatment or inspection.
Claims (12)
1. a fluid circuit switching device shifter, is connected with the fluid circuit of endoscope and switches the connected state of multiple fluid circuit, it is characterized in that having:
Button, its multiple containment members that there is piston and isolate along the direction of principal axis of described piston and be arranged on described piston;
Working cylinder, it inserts for described piston, along the direction of insertion of described piston according to the number of described containment member periodically undergauge correspondingly, and be formed with the connecting hole being connected to described multiple fluid circuit in side;
Stopper, it is for limiting the lower end position when being pressed in described working cylinder by described piston,
The front that the diameter of described multiple containment member is more configured in the direction of insertion of described piston is less,
Described working cylinder has the different multiple regions of internal diameter that described multiple containment member slidingly contacts respectively, and than forward side, the region of most path, there is bottom, region between the region of described most path and described bottom forms to obtain footpath larger than the region of described most path
Described containment member be described working cylinder inner surface with between outer surface of piston by described working cylinder along the component that axis direction is separated, and the diameter of described containment member than in described piston, the internal diameter on the upper strata of layer that described containment member slidingly contacts is little
Region between the region of each layer beyond the region of most path described in described connecting hole is respectively formed at and described most path and described bottom,
Side more forward than the region from the base end side of this layer to the lower end position of the described containment member slidingly contacted with this layer is laid respectively at for the position of the described connecting hole be connected with described working cylinder by each fluid circuit.
2. fluid circuit switching device shifter as claimed in claim 1, wherein,
Described piston has the direction of principal axis isolation configuration along described piston and four the described containment members periodically attenuated towards front,
Four regions that four described containment members that described working cylinder has described piston slidingly contact respectively, are respectively: the first area of front; Adjoin with described first area and the second area in footpath larger than described first area; Adjoin with described second area and the 3rd region in footpath larger than described second area; With described 3rd area adjacency and than the 4th region in described 3rd large footpath, region.
3. fluid circuit switching device shifter as claimed in claim 2, wherein,
Described multiple fluid circuit is four fluid circuits, and the region respectively and between described first area and described bottom, described second area, described 3rd region, described 4th joint area.
4. fluid circuit switching device shifter as claimed in claim 2, wherein,
Described stopper is the component abutting with the step of the boundary as described second area and described 3rd region and limit the described lower end position of described piston, and for abut with the step of the boundary as described second area and described 3rd region at described lower end position and by the airtight containment member be separated between described second area with described 3rd region.
5. fluid circuit switching device shifter as claimed in claim 3, wherein,
Described stopper is the component abutting with the step of the boundary as described second area and described 3rd region and limit the described lower end position of described piston, and for abut with the step of the boundary as described second area and described 3rd region at described lower end position and by the airtight containment member be separated between described second area with described 3rd region.
6. the fluid circuit switching device shifter according to any one of Claims 1 to 5, wherein
Described piston has slide block, and this slide block contacts with the inner surface of described working cylinder all the time, and guides described piston to make it only move along the axis direction of described working cylinder.
7. an endoscope, have and be inserted into endoceliac insertion section, for ejecting multiple fluid circuit of fluid and the fluid circuit switching device shifter for changing the fluid ejected from described leading section from the leading section of this insertion section, and by described insertion section insertosome intracavity is observed observed portion
The feature of described endoscope is,
Described fluid circuit switching device shifter has: button, and it has piston and is arranged on the multiple containment members on described piston; Working cylinder, it inserts for described piston, along the direction of insertion of described piston according to the number of described containment member periodically undergauge correspondingly, and be formed with the connecting hole being connected to described multiple fluid circuit in side; Stopper, it is for limiting the lower end position when being pressed in described working cylinder by described piston,
The front that the diameter of described multiple containment member is more configured in the direction of insertion of described piston is less, described working cylinder has the different multiple regions of internal diameter that described multiple containment member slidingly contacts respectively, and than forward side, the region of most path, there is bottom, region between the region of described most path and described bottom forms to obtain footpath larger than the region of described most path, described containment member be described working cylinder inner surface with between outer surface of piston by described working cylinder along the component that axis direction is separated, the diameter of described containment member is than in described piston, the internal diameter on the upper strata of the layer that described containment member slidingly contacts is little, each layer beyond the region of most path described in described connecting hole is respectively formed at, and the region between the region of described most path and described bottom, and lay respectively at side more forward than the region from the base end side of this layer to the lower end position of the described containment member slidingly contacted with this layer for the position of the described connecting hole be connected with described working cylinder by each fluid circuit.
8. endoscope as claimed in claim 7, wherein,
The described piston of described fluid circuit switching device shifter has the direction of principal axis isolation configuration along described piston and more configures by described front four the described containment members more diminished,
Four regions that four described containment members that described working cylinder has described piston slidingly contact respectively, are respectively: the first area of described front; Adjoin with described first area and the second area in footpath larger than described first area; Adjoin with described second area and the 3rd region in footpath larger than described second area; With described 3rd area adjacency and than the 4th region in described 3rd large footpath, region.
9. endoscope as claimed in claim 8, wherein,
Described multiple fluid circuit is four fluid circuits, and the region respectively and between described first area and described bottom, described second area, described 3rd region, described 4th joint area.
10. endoscope as claimed in claim 8, wherein,
Described stopper is the component abutting with the step of the boundary as described second area and described 3rd region and limit the described lower end position of described piston, and for abut with the step of the boundary as described second area and described 3rd region at described lower end position and by the airtight containment member be separated between described second area with described 3rd region.
11. endoscopies as claimed in claim 9, wherein,
Described stopper is the component abutting with the step of the boundary as described second area and described 3rd region and limit the described lower end position of described piston, and for abut with the step of the boundary as described second area and described 3rd region at described lower end position and by the airtight containment member be separated between described second area with described 3rd region.
12. endoscopies according to any one of claim 7 ~ 11, wherein,
Described piston has slide block, and this slide block contacts with the inner surface of described working cylinder all the time, and guides described piston to make it only move along the axis direction of described working cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011209239A JP5414759B2 (en) | 2011-09-26 | 2011-09-26 | Fluid line switching device and endoscope |
| JP2011-209239 | 2011-09-26 |
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| Publication Number | Publication Date |
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| CN103006167A CN103006167A (en) | 2013-04-03 |
| CN103006167B true CN103006167B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210311048.5A Active CN103006167B (en) | 2011-09-26 | 2012-08-28 | Fluid circuit switching device shifter and endoscope |
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| JP6057823B2 (en) * | 2013-04-18 | 2017-01-11 | オリンパス株式会社 | Endoscope pipe switching device, endoscope provided with endoscope pipe line switching device, and method for manufacturing endoscope pipe line switching device |
| CN106132271B (en) * | 2014-08-07 | 2018-05-01 | 奥林巴斯株式会社 | Endoscope-use pipeline switching device |
| JP6125134B1 (en) * | 2016-02-29 | 2017-05-10 | オリンパス株式会社 | Pipe line control device |
| WO2017149828A1 (en) * | 2016-02-29 | 2017-09-08 | オリンパス株式会社 | Conduit control apparatus |
| WO2018003185A1 (en) * | 2016-06-29 | 2018-01-04 | オリンパス株式会社 | Endoscope button |
| JP2018121926A (en) * | 2017-02-01 | 2018-08-09 | オリンパス株式会社 | Air/water supply valve for endoscope and endoscope |
| JP2018121924A (en) * | 2017-02-01 | 2018-08-09 | オリンパス株式会社 | Endoscope air supply/water supply valve and endoscope |
| TWI698236B (en) * | 2019-03-15 | 2020-07-11 | 施長碧 | Nasogastric tube |
| CN110522396B (en) * | 2019-09-04 | 2021-11-16 | 重庆金山医疗技术研究院有限公司 | Medical endoscope and aqueous vapor diverter valve thereof |
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| JPH0332633A (en) * | 1990-06-18 | 1991-02-13 | Olympus Optical Co Ltd | Feeding gas/feeding water switching device for endoscope |
| US5840016A (en) * | 1995-10-24 | 1998-11-24 | Olympus Optical Co., Ltd. | Line changeover device for endoscope |
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| CN1951312A (en) * | 2005-10-17 | 2007-04-25 | 奥林巴斯医疗株式会社 | Endoscope |
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| JPS62125501U (en) * | 1986-01-30 | 1987-08-10 | ||
| JPH02168926A (en) * | 1988-12-22 | 1990-06-29 | Asahi Optical Co Ltd | Air and water supplying device for endoscope |
| JP3434562B2 (en) * | 1994-04-04 | 2003-08-11 | オリンパス光学工業株式会社 | Endoscope conduit switching device |
| JP3689200B2 (en) * | 1996-09-26 | 2005-08-31 | オリンパス株式会社 | Endoscope conduit or prevention device |
| JPH10248791A (en) * | 1997-03-12 | 1998-09-22 | Olympus Optical Co Ltd | Endoscope device |
| JP3880478B2 (en) * | 2002-07-18 | 2007-02-14 | オリンパス株式会社 | Endoscope |
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| JPH0332633A (en) * | 1990-06-18 | 1991-02-13 | Olympus Optical Co Ltd | Feeding gas/feeding water switching device for endoscope |
| US5840016A (en) * | 1995-10-24 | 1998-11-24 | Olympus Optical Co., Ltd. | Line changeover device for endoscope |
| CN1714738A (en) * | 2004-06-29 | 2006-01-04 | 日本缆绳系统株式会社 | Moving device in pipe lines |
| CN1951312A (en) * | 2005-10-17 | 2007-04-25 | 奥林巴斯医疗株式会社 | Endoscope |
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| JP2013066666A (en) | 2013-04-18 |
| CN103006167A (en) | 2013-04-03 |
| JP5414759B2 (en) | 2014-02-12 |
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