CN102697445A - Absorbing button for endoscope - Google Patents
Absorbing button for endoscope Download PDFInfo
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- CN102697445A CN102697445A CN2011103038581A CN201110303858A CN102697445A CN 102697445 A CN102697445 A CN 102697445A CN 2011103038581 A CN2011103038581 A CN 2011103038581A CN 201110303858 A CN201110303858 A CN 201110303858A CN 102697445 A CN102697445 A CN 102697445A
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Abstract
The present invention provides an absorbing button for an endoscope. The absorbing button is arranged between an absorbing channel and a discharging channel and used for controlling absorption of an absorbing mouth formed on the front end of the endoscope. The absorption button is provided with a cylinder with a cylinder pipeline, and a connecting plunger piston slidingly embedded into the cylinder pipeline. The connecting plunger piston is provided with a valve body part and a pressing operation part. The valve body part is inserted into the cylinder pipeline from a first cylinder opening. The pressing operation part is connected with the valve body part from a second cylinder opening side, and can be protruded outside from the cylinder main body in a pressing way.
Description
Technical field
The present invention relates to a kind ofly attract button from the endoscope-use that the attraction mouth at the front opening of insertion section attracts the attraction operation of liquid etc. to control to being used for.
Background technology
In the medical field,, use widely in the endoscopic observation body cavity in order to diagnose or to treat.This endoscope possesses the operating portion that is inserted in endoceliac insertion section and is used to operate the insertion section is arranged.In the insertion section, be provided with towards the attraction passage of the attraction mouth of its front end face.This attraction passage is connected in the attraction button that is arranged on operating portion.And, be provided with the pliers passage of the injection of inserting logical or rinse water etc. that is used in treatment tools such as pliers in the endoscope.For the insertion section is attenuated, mostly dual-purpose pliers passage with attract passage.At this moment, attract the midway conduct special-purpose attraction channel branch of passage from the pliers passage.
Attract to attract also to be connected with the passage except being connected with on the button towards the passing away of negative pressure sources such as suction pump.Attract button to be communicated with through pressing operation and attract passage and passing away and mouthful attract from attracting, when this pressing operation was disengaged, blocking attracted the connection of passage and passing away also to stop from the attraction of attraction mouth.(for example, disclosing clear 62-189041 communique) with reference to the open 2007-185276 communique of Japan Patent, the openly flat 5-161599 communique of Japan Patent, the openly flat 6-070880 communique of Japan Patent, the openly flat 11-318908 communique of Japan Patent, Japan Patent.
Shown in Figure 15 A, Figure 15 B, attraction button in the past is made up of cylinder 101, plunger 103.Form the earthen pipe road 102 of both ends open on the cylinder 101, its lower end is connected in and attracts path 10 0.Plunger 103 is embedded in the earthen pipe road 102, and between closed position and open position, moves.Lid 104 links cylinder 101 and plunger 103 and covers the upper part of cylinder.
Shown in Figure 15 A, when being the attraction OFF of not pressing operation leading section 110a, valve portion 111 is connected to valve seat 105, thereby blocking attracts being communicated with of path 10 0 and passing away 107.At this moment, passing away 107 is through gap, cylinder opening 106 and passage 112 etc. and the atmosphere of plunger 103 with earthen pipe road 102.This is because because button start all the time, therefore if exhaust passage 107 not with atmosphere, the load that then puts on suction pump can increase.Therefore, can suppress the increase of the load of suction pump through making exhaust passage 107 and atmosphere.
On the other hand, shown in Figure 15 B, when being the attraction ON of pressing operation upper end 110a, valve portion 111 is communicated with attraction path 10 0 and passing away 107 thus away from valve seat 105.Meanwhile, the O type circle 113 that is flush-mounted in upper end 110a is crimped on cylinder opening 106 and stops up cylinder opening 106, thereby blocking passing away 107 is communicated with atmospheric.Thus, lead to the negative pressure suction force in each pipeline of passing away 107, begin from the attraction of the attraction mouth of endoscope distal end through the attraction increase of suction pump.
In the attraction button in the past, when plunger when attracting OFF is set in the closed position, interdicts and attract being communicated with of path 10 0 and passing away 107 through making valve portion 111 be connected to valve seat 105.At this moment, if the size of valve portion 111 is less, then when rocking of form error that valve seat 105 takes place or plunger 103 waited, interdicts and become insufficient.At this moment, although do not hope to attract, also can attract endoceliac body fluid etc. from the attraction mouth of endoscope distal end.In order to prevent that this mistake from attracting, the maximum diameter of preferred valve portion 111 is bigger.But, if increase the maximum diameter of valve portion 111, then can't pass through valve seat 105, therefore can't plunger 103 be assembled in cylinder 101.
Summary of the invention
Although the object of the present invention is to provide a kind of valve portion is that the endoscope-use that major diameter also can be like a cork be assembled in cylinder with plunger attracts button.
To achieve these goals, endoscope-use of the present invention attracts button to possess to have to link in valve body the plunger (below, be called and link plunger) of press operating part.This binding plunger is embedded in the earthen pipe road of cylinder sliding freely.Said endoscope has operating portion and is inserted in endoceliac insertion section.Be provided with attraction passage and passing away at said operating portion, dispose said cylinder between these.Said attraction channel connection is in the attraction mouth at the front opening of said insertion section, and said passing away is connected in negative pressure source.
Said cylinder has the cylinder main body that forms said earthen pipe road, the valve seat that is disposed in the said earthen pipe road reaches the passing away inlet in the road upper shed of said earthen pipe.Said earthen pipe road has the 1st cylinder opening and the 2nd cylinder opening.Said the 1st cylinder open communication is in said attraction passage.
Said valve body is inserted in the said earthen pipe road from said the 1st cylinder opening.Said press operating part is positioned at said the 2nd cylinder open side, and is outstanding from said cylinder main body with the state that is linked to said valve body.Said valve body has the valve portion that can be contacted with said valve seat.When not pushing the attraction OFF of said press operating part, said binding plunger is set in the closed position, and when when pushing the attraction ON of said press operating part, said binding plunger is set in open position.In the said closed position, said valve portion is contacted with said valve seat and interdicts said passing away and said attraction passage.In the said open position, said plunger is to moving towards the direction of said 1 cylinder opening from said the 2nd cylinder opening, through making said valve portion away from said valve seat, thus through said passing away inlet with said attraction channel connection in said passing away.
In order to link said valve body and said press operating part, connecting hole or engaging recessed part preferably are set in one of which side, the opposing party the card claw stop is set.The preferred deformable lid that is linked to said press operating part and said cylinder main body that is provided with.This blanketing cover said press operating part around with the residing cylinder of said the 2nd cylinder opening upper end.And when pushing of said press operating part was disengaged, said lid was put on said press operating part come through elastic force, so that said binding plunger is back to said closed position.Said card claw stop preferably the opposition side of said valve portion with to above outstanding mode be arranged at said valve body, said connecting hole or engaging recessed part are arranged at said press operating part.
In the preferred implementation of the present invention, be formed with the patchhole that extends to the glide direction of said binding plunger in the bottom of said press operating part, so that insert said card claw stop.Said connecting hole with the mode of opening in the outside of said patchhole and said press operating part to extending with the orthogonal direction of the glide direction of said binding plunger.Card only is inserted in the said claw of the said card claw stop of said patchhole on this connecting hole.
Preferably the periphery at said lid forms passage.When said binding plunger was set in said closed position, this passage was through the part sealing of said lid.And, preferably between said the 2nd cylinder opening and said binding plunger, form the gap.When said binding plunger was set in said open position, this gap allowed that the air that gets in the said lid from said passage flows into said passing away.Preferred said passage and said connecting hole are opposed, so that can confirm that from the outside of said lid the said connecting hole and the card of card claw stop end state through said passage.At this moment, the rotation limiting mechanism is set, this rotation limiting mechanism prevents that the relative rotation of said binding plunger and said lid is so that keep the opposed relationship of said passage and said connecting hole.Push said claw through said passage and said connecting hole, the card that can remove said card claw stop and said connecting hole thus ends.
In another preferred implementation of the present invention, be provided with the patchhole that runs through said press operating part and extend, so that insert said card claw stop to the glide direction of said binding plunger.Said engaging recessed part forms with the mode of surrounding said patchhole on the top of said press operating part, hangs up the said claw of the said card claw stop that is inserted in said insertion section.Said card claw stop is provided with 2 in the position of departing from 180 degree, when the said claw of said 2 card claw stops is pinched when operation folder, can remove engaging of each claw and said engaging recessed part.
Preferred said passing away inlet is formed between said valve seat and said the 2nd cylinder opening.And preferred said valve portion is positioned at the lower end of said valve body.Preferably between the upper end of said valve portion and said plunger to form the plunger stream with the said passing away opposed mode that enters the mouth.This plunger stream forms through the outer peripheral face to the shaft portion of the said valve body of axial incision, and air is flowed in cylinder like a cork.
Preferred said valve seat and said valve portion are from said the 1st cylinder opening towards said the 2nd cylinder opening and the taper shape that diameter narrows down.Use suction pump as said negative pressure source.
Attraction button of the present invention links from the 2nd cylinder open side in the valve body that is inserted in the earthen pipe road from the 1st cylinder opening has press operating part, does not therefore need as serving as to insert plunger in the guiding earthen pipe road earlier from the 2nd cylinder open side with valve portion in the past.Its result even fully strengthen the size of valve portion with respect to valve seat, also can carry out the assembling of plunger like a cork.
In addition, if seperating vale body and press operating part then can unload the binding plunger from cylinder.The cleaning and sterilizing that at this moment, can fully link plunger is handled.In addition, only, therefore operate extremely simple through embedding the assembling of the binding plunger just can carry out after cleaning and sterilizing is handled to cylinder.
Description of drawings
Fig. 1 is the synoptic diagram of endoscope.
Fig. 2 is the sectional view that is in the attraction button that attracts the OFF state.
Fig. 3 is the sectional view that is in the attraction button that attracts the ON state.
Fig. 4 is the axonometric chart of cylinder.
Fig. 5 A and Fig. 5 B are the axonometric charts of the binding plunger observed the other way around.
Fig. 6 A is the axonometric chart of lid, and Fig. 6 B is the sectional view of lid.
Fig. 7 is the sectional view that expression links the decomposing state of plunger.
Fig. 8 is the sectional view of state that expression can link the linking portion of plunger with Visual Confirmation.
Fig. 9 is the amplification sectional view that expression attracts the attraction button of OFF state.
Figure 10 is the amplification sectional view that expression attracts the attraction button of ON state.
Figure 11 is the sectional view of the related attraction button of expression the 2nd embodiment, and expression attracts the OFF state.
Figure 12 is the sectional view of the related attraction button of expression the 2nd embodiment, and expression attracts the ON state.
Figure 13 A and Figure 13 B are the axonometric charts of observing the plunger of the 2nd embodiment the other way around.
Figure 14 A and Figure 14 B are the sectional views of elaborative sequence that is used to explain the binding plunger of the 2nd embodiment.
Figure 15 A is in the sectional view that in the past attracts button that attracts the OFF state, and Figure 15 B is and the identical sectional view that attracts the ON state.
The specific embodiment
[the 1st embodiment]
As shown in Figure 1; Endoscope 10 is inserted in the body cavity the for example bronchoscope of trachea, possesses operating portion 12 that the rear end part that is inserted in endotracheal insertion section 11, is connected with in the insertion section 11 is arranged and the general flexible cord 13 that is connected in not shown processor device or light supply apparatus etc.
Insertion section 11 is provided with the pliers passage 14 that is used to insert treatment tools such as pliers.One end of this pliers passage 14 is connected in the attraction/forceps channel (below, only be called attract mouthful) 15 of the front end face that is arranged on insertion section 11, and the other end is connected in the pliers inlet 16 that is arranged on operating portion 12.This pliers inlet 16 seals through pliers bolt (not shown) when inserting treatment tool.In addition, connect cylinder (not shown) at pliers inlet 16, during from rinse water such as this cylinder injection normal saline, this rinse water is passed through pliers passage 14 from attracting mouthful 15 ejections.
In addition, attract also to be provided with camera window or illuminating window (not shown) the mouth 15 except being provided with on the front end of insertion section.The behind of camera window disposes optical system or solid-state imager (not shown) etc.The behind of illuminating window disposes light optics and fiber optic cables (not shown).The holding wire of solid-state imager or fiber optic cables through the insertion section 11 or general flexible cord 13 etc. be connected in said processor device and light supply apparatus respectively.
Pliers passage 14 is as being used for from attracting mouthfuls 15 to attract the passage of solids such as dirt in body fluid such as blood or the body etc. to use.In operating portion 12, be provided with from pliers passage 14 ramose attraction passages 17.This attraction passage 17 is connected in the attraction button 18 that is arranged on operating portion 12.
Among Fig. 3 of state when Fig. 2 of the state when expression attracts OFF and expression attract ON, attract button 18 by the cylinder that is installed on operating portion 12 (valve guiding parts) 24, be inserted in binding plunger 25 in this cylinder 24, and the lid 26 that links cylinder 24 and link plunger 25 constitute.Said cylinder 24, link plunger 25 and for example make by resin.In addition, cylinder 24 can be hard resin, links plunger 25 and can be soft resin.Lid 26 is made by the rubber elastomeric material.In addition, below in the explanation, upper side is called upper end side among the figure, and lower side is called lower end side among the figure.
Be penetrated with the valve chest 27 of generally tubular on the basket 28 of operating portion 12.Be formed with screw thread on the periphery of this valve chest 27, and screwed togather nut 30, in order to avoid come off from basket 28.In valve chest 27, be formed with the pipeline 31 that axially extends more longways to it.In addition, be provided with the attraction connector 32 that is connected in attraction passage 17 in the bottom of valve chest 27, attract connector 32 connecting pipelines 31 and attract passage 17 through this.
Below said cylinder 24, be fixed with installing ring 29 through Screw.Inner peripheral surface at this installing ring 29 is formed with screw thread.Installing ring 29 is screwed into valve chest 27, thereby cylinder 24 is fixed in valve chest 27.Like this, attract button 18 to be installed on the outside of operating portion 12 with outstanding state through valve chest 27.Under this state, be embedded in the top of the pipeline 31 of valve chest 27 in the cylinder 24 the bottom watertight of cylinder main body.
Be formed with the earthen pipe road 41 that is straight tube-like that links to each other with the pipeline 31 of valve chest 27 on the said cylinder main body.In addition, the upper end upper shed of cylinder main body is useful on and makes the outstanding upper end side cylinder opening (the 2nd cylinder opening) 35 in upper end that links plunger 25.
As shown in Figure 4,24a last and periphery upper end side cylinder opening 35 in the upper surface of cylinder 24 (below, be called the cylinder upper surface) is provided with and covers 26 banded cylindrical portion 37.Be formed with flange 38 on the outer peripheral face of the upper end of this cylindrical portion 37.On the flange 38 through its part being cut into the plane lid standstill face 38a that is formed for carrying out with lid 26 spline.In addition, cover 26 banded roughly cyclic cylinders with covering mounting groove 39 through the outer peripheral face and the cylinder upper surface 24a formation following, cylindrical portion 37 of flange 38.
Part in the side that is positioned at earthen pipe road 41 of cylinder 24 is provided with the connection pipeline 44 that is connected in passing away 21.This connects pipeline 44 to extending more longways with respect to the roughly orthogonal direction in earthen pipe road 41, constitutes the part of passing away 21.The inwall upper shed on earthen pipe road 41 has leads to the connector (passing away inlet) 45 that connects pipeline 44.
Be formed with tapered valve seat 42 in the bottom on earthen pipe road 41.Its lower end of valve seat 42 is open as lower end side cylinder opening (the 1st cylinder opening) 46.At this valve seat 42 along being formed with the 1st tapered portion 47 and the 2nd tapered portion 48 towards the direction of upper end side cylinder opening 35 from lower end side cylinder opening 46.The 1st tapered portion 47 is a valve seat, along with towards upper end side cylinder opening 35 and diameter narrows down gradually.The 2nd tapered portion 48 is along with towards upper end side cylinder opening 35 and the shape that diameter broadens gradually.
Among Fig. 2, Fig. 3, Fig. 5 A and Fig. 5 B, linking plunger 25 can be embedded in cylinder 24 movably to above-below direction, through pressing operation or push releasing to attracting being communicated with/interdicting and switching of passage 17 and passing away 21.Link the press operating part 25b that plunger 25 possesses has valve body 25a and loading and unloading to be linked to this valve body freely.Valve body 25a possesses the valve portion of main body axial region 50 and general conical shape (poppet valve) 51 is arranged.Main body axial region 50 is inserted in the earthen pipe road 41 from lower end side cylinder opening 46, and when for attraction OFF, its 1st upper end 50a arrives near upper end side cylinder opening 35.Said valve portion 51 is arranged at the 1st bottom 50b of main body axial region 50.Valve portion 51 is along the shape of the inwall of the 1st tapered portion 47, and its maximum diameter is greater than the internal diameter of the 1st tapered portion 47.
Be provided with from said the 1st upper end 50a to the long card claw stop 52 that extends in top.When for attraction OFF, card claw stop 52 is outstanding from upper end side cylinder opening 35.Be formed with claw 52a toward the outer side on the leading section of this card claw stop 52.Card claw stop 52 is provided with 2 departing from 180 degree positions, but also can a side only be made as guide rod.And card claw stop 52 can be 3.
Press operating part 25b is to protrude in the state and the coaxial extension of valve body 25a on the upper end side cylinder opening 35.The 2nd upper end 54a of press operating part 25b is provided with the discoideus head 55 of the operation that is pressed when attracting ON.Be formed with the patchhole 56 that axially extends and insert a pair of card claw stop 52 to it more longways on the 2nd bottom 54b of press operating part 25b.The internal diameter of this patchhole 56 is less than the distance between the outside of a pair of claw 52a.And, be formed with a pair of connecting hole 58 on the side of the 2nd bottom 54b towards patchhole 56.Each connecting hole 58 forms with 180 degree at interval, hangs up the claw 52a of a pair of card claw stop 52 on its limit respectively.Thus, a pair of claw 52a is sticked in connecting hole 58, and press operating part 25b is linked to valve body 25a.
In addition, between the 2nd upper end 54a and the 2nd bottom 54b, be provided with brake portion 60 (with reference to figure 5A, Fig. 5 B).Brake portion 60 has along with the cone-shaped of hole enlargement gradually away from upper end side cylinder opening 35.In the time of in press operating part 25b is pressed into upper end side cylinder opening 35, this brake portion 60 be connected to upper end side cylinder opening 35 and the restriction further be pressed into.
In the said binding plunger 25, when head 55 not being carried out pressing operation, when promptly being set in closed position (attracting OFF), valve portion 51 is connected to valve seat 42 (inwall of the 1st tapered portion 47 in detail).Thus, closed lower side cylinder opening 46 and become the blocking state that is communicated with (with reference to figure 2) that blocking attracts passage 17 and passing away 21.And, link plunger 25 if, then link plunger and be set in open position (attracting ON) through to the pressing operation of head 55 and press operating part 25b is pressed into scheduled volume in upper end side cylinder opening 35.In this open position, valve portion 51 is open lower side cylinder opening 46 away from valve seat 42, is communicated with the connected state (with reference to figure 3) that attracts passage 17 and passing away 21 thereby become.And, be meant that for example brake portion 60 is connected to upper end side cylinder opening 35 and the be pressed into amount of restriction till further being pressed at this said scheduled volume.
Be formed with the plunger stream 61 that axially extends more longways to it on the outer peripheral face of main body axial region 50.The length of plunger stream 61 is adjusted to following length: when binding plunger 25 switched to connected state, stream upper end 61a was positioned at roughly the place ahead of passing away inlet 45, and stream bottom 61b is positioned at than valve seat 42 more near pipeline 31 sides.In addition, as long as have the gap between earthen pipe road 41 and the main body axial region 50, then can there be plunger stream 61.But as long as have a plunger stream 61 this moment, then channel widens, so air flows and becomes easily, and discharges the solids that attracted etc. easily.
Be formed for carrying out the lid spline groove 62 (with reference to figure 5B) with lid 26 spline at head 55 through a part of cutting its peripheral part.And, between head 55 and brake portion 60, be formed with to be used to link and cover 26 annular cover mounting groove 63.
Among Fig. 2 and Fig. 3, lid 26 forms discoideus top 65 that is linked to head 55 and the edge part 66 that is linked to cylindrical portion 37.Edge part 66 is barrel shape, so that surround top 65, press operating part 25b and cylindrical portion 37, is linked to cylindrical portion 37.
Shown in Fig. 6 A, on top 65, be formed with head 55 chimeric embedded hole 67.The internal perisporium of this embedded hole 67 is provided with the spline of the lid spline groove 62 that is sticked in head 55 with projection 68.Thus, stop the relative rotation that links between plunger 25 and the lid 26.
The bottom central of embedded hole 67 be formed with press operating part 25b a part chimeric through hole 69.The inner wall part 70 of this through hole 69 is embedded in and covers mounting groove 63.Link plunger 25 and top 65 thus.
Shown in Fig. 6 B, on the edge of the bottom of portion 66 be provided with have cylindrical portion 37 the cyclic bottom 73 of chimeric embedded hole 72.Be formed with on 73 the internal perisporium of bottom the upper surface that is embedded in the fitting portion 73a that cover mounting groove 39 and covering cylindrical portion 37 outer peripheral portion and and fitting portion 73a between seize the annular convex 73b of flange 38 on both sides by the arms.Be embedded in the state and bottom 73 bindings of embedded hole 72 thus with cylindrical portion 37.In addition, be formed with a pair of passage 75 of spending pitches and atmosphere on the edge part 66 with 180.
Be formed with the guiding parts standstill face 73c that is plane on the part of the internal perisporium of bottom 73, so that be connected to the lid standstill face 38a of flange 38.Thus, between cylinder 24 and lid 26, stop rotation relatively.In addition, limit cylinder 24 and the relative rotation that links plunger 25 indirectly through covering 26.Can be through these 2 rotation limiting mechanisms, the stream upper end 61a of the plunger stream 61 when making connected state roughly is opposite to passing away inlet 45.Meanwhile, can make the connecting hole 58 of press operating part 25b be opposite to passage 75.
On the bottom surface at top 65 and be positioned at annular convex 73b above part, be provided with cyclic cyclic rib 77, so that surround the periphery of press operating part 25b.This cyclic rib 77 forms with lid 26.This cyclic rib 77 is as along with near press operating part 25b and away from the concave cone shape of the bottom surface at top 65.
Be back to Fig. 2 and Fig. 3, lid 26 carries out reinforcing towards the top to linking plunger 25, is maintained the blocking state thereby should link plunger 25.When through to the pressing operation of head 55 and press operating part 25b when being pressed in upper end side cylinder opening 35, move towards cylindrical portion 37 at top 65.
Then, with reference to figure 7, the assembling that links plunger 25 is described.At first, make a pair of card claw stop 52 up, in earthen pipe road 41, insert valve body 25a from lower end side cylinder opening 46.It is outstanding from upper end side cylinder opening 35 that the insertion of this valve body 25a proceeds to a pair of card claw stop 52.
Then, press operating part 25b is moved to the below from the top of upper end side cylinder opening 35, a pair of card claw stop 52 is inserted in the patchhole 56 of press operating part 25b.And as long as adjust the direction of press operating part 25b with the connecting hole 58 opposed modes of the claw 52a of a pair of card claw stop 52 and press operating part 25b, then claw 52a just gets in the connecting hole 58.That is and since a pair of card claw stop 52 in patchhole 56, become to each other near the state of direction strain, therefore block claw stop 52 through spring return, claw 52a hangs on the connecting hole 58.Thus, through a pair of card claw stop 52 and connecting hole 56, press operating part 25b is linked to valve body 25a.
At this, limit the relative rotation that links plunger 25 and cylinder 24 indirectly through covering 26, so that the connecting hole 58 of press operating part 25b is opposed with the passage 75 of lid 26 all the time.Therefore, passage 75 keeps all the time and connecting hole 58 opposed states.Thus, as shown in Figure 8, can end state with the card of Visual Confirmation card claw stop 52 through passage 75 and connecting hole 58.
When the binding plunger 25 of 2 segmenting structures is assembled in cylinder 24,, therefore need not to make valve portion 51 through in the valve seat 42 owing in lower end side cylinder opening 46 side direction cylinders 24, insert valve body 25a.Its result is even if the diameter d 1 that makes valve portion 51 during fully greater than the inner diameter d 2 of the 1st tapered portion 47, also can be assembled in cylinder 24 with linking plunger 25 like a cork.
In addition; In the above-mentioned explanation; Situation to after valve body 25a being inserted in the cylinder 24 press operating part 25b being linked to valve body 25a is illustrated; But after can be earlier being inserted in the 2nd upper end 54b of press operating part 25b in the upper end side cylinder opening 35, valve body 25a being inserted in being linked to press operating part 25b in the earthen pipe road 41.
To link plunger 25 and be assembled in after the cylinder 24, lid 26 is linked to respectively and links plunger 25 and cylinder 24.Through the elastic force of this lid 26, link plunger 25 and remain in closed position (attracting the OFF state).To link plunger 25 and be installed on after the cylinder 24, installing ring 29 is screwed into valve chest 27, thereby cylinder 24 be fixed in valve chest 27.Then, as long as will constitute the hose connection of passing away 21, then accomplish of the installation of attraction button 18 to operating portion 12 in connecting pipeline 44.
Then, the effect to the attraction button 18 of said structure describes.During splanchnoscopy, insertion section 11 is inserted in the trachea.Take look-out station by the solid-state imager that is disposed at forward end section of endoscope, the pictorial display of acquisition is on display.When observing this display, in the inspection trachea.At this moment, well-known as long as operating portion is operated, then change the direction of insertion section front end, and can observe desirable look-out station.
During this splanchnoscopy, carry out attraction all the time based on suction pump 20.Link plunger 25 and be set in during the closed position, valve as shown in Figure 9 portion 51 presses on valve seat 42 according to lid 26, become the attraction OFF state that is communicated with that blocking attracts passage and passing away (among Fig. 9, by attach * double dot dash line represent).
At this moment, the periphery wall of valve portion 51 adheres to the inwall of the 1st tapered portion 47.And, because the diameter d 1 that can make valve portion 51 is fully greater than the inner diameter d 2 of the 1st tapered portion 47, even if therefore produce valve seat 42 or the 1st tapered portion 47 shape error or when linking rocking of plunger 25 etc., also can stop up lower end side cylinder opening 46 reliably.Therefore, although do not attract operation, can not attract various body fluid or solids (below, be called attract thing) from attracting mouthfuls 15 yet.And,, then also can avoid in attracting the OFF state valve portion 51 to cross valve seat 42 as long as utilize bigger valve portion 51.
In addition, attract in the OFF state and since cyclic rib 77 to the top of annular convex 73b away from, be formed with the space between the two, so upper end side cylinder opening 35 is through passage 75 and atmosphere.Thus, through space, the upper end side cylinder opening 35 and the gap and the passage 75 that link plunger 25 that forms by passing away inlet 45, earthen pipe road 41 and plunger stream 61, passing away 21 and atmosphere (representing with solid arrow among Fig. 9).Its result prevents suction pump 20 is applied load.
Shown in figure 10, when attracting, push head 55 and press operating part 25b is pressed in upper end side cylinder opening 35.Thus, lid 26 top 65 when cylindrical portion 37 moves, edge part 66 strains.If the cyclic rib midway 77 that moves at this top 65 is contacted with above the annular convex 73b, and lasting pressing operation, then cyclic rib 77 is crimped on annular convex 73b.This pressing operation lasts till that brake portion 60 is connected to upper end side cylinder opening 35.
If brake portion 60 is connected to upper end side cylinder opening 35, then link plunger 25 and be set in open position, valve portion 51 is away from the inwall of the 1st tapered portion 47, thus open lower side cylinder opening 46.Thus, be communicated with attraction passage 17 and passing away 21 (representing with solid arrow among Figure 10).And, interdict being communicated with of upper end side cylinder opening 35 and passage 75 owing to be crimped on annular convex 73b through cyclic rib 77, therefore interdict passing away 21 and atmospheric the connection (among Figure 10, by attach * double dot dash line represent).
Be communicated with to attract passage 17 and passing away 21, and blocking passing away 21 is communicated with atmospheric, thereby increases in the passing away 21 and attract the negative pressure suction forces in the passage 17, from attracting mouthful endoceliac material of 15 attractions.The material that is attracted (attraction thing) is expelled to the outside of endoscope 10 through earthen pipe road 41, plunger stream 61, passing away inlet 45 and passing away 21 after attracting passage 17, attracting connector 32 and pipeline 31.
When stopping to attract, remove pressing operation to head 55.Thus, through covering 26 restoring force, link plunger 25 and move to the top, valve portion 51 adheres to inwall and the shut off valve of the 1st tapered portion 47.Thus, blocking attraction passage 17 is communicated with passing away 21, and passing away 21 stops with atmosphere from attracting the attraction of mouth 15.
The every use of endoscope is once just cleaned with cleaning machine, links plunger 25 but take off from cylinder 24 this moment.At first, take off passing away 21 from connecting pipeline 44.Then, attract button 18 if rotate, then installing ring 29 breaks away from from valve chest 27.Thus, unload suction pump 18 from operating portion 12.Then, make and cover 26 strains and close from cylinder 24 and to link plunger 25 and take off.As long as pin is inserted into connecting hole 58 and is pressed into claw 52a, then block claw stop 52 and just break away from from connecting hole 58, remove the binding of press operating part 25b and valve body 25.As long as, then can extract valve body 25a from cylinder 24 with the below that valve body 25a is pulled to cylinder 24.
To attract button 18 to be separated into cylinder 24, valve body 25a, press operating part 25b and cover after 26, and together put into cleaning machine with endoscope and carry out cleaning and sterilizing and handle.Can come to implement effectively the cleaning and sterilizing processing of plunger through seperating vale body 25a and press operating part 25b.Carry out after this disinfecting and washing, as previously mentioned, assembling attracts button 18 and is installed on operating portion 12, will connect pipeline 44 at last and be linked to attraction button 18.At this moment, can link the assembling of plunger 25 simply by the user.In addition, during owing to cleaning endoscope, in pipeline, inject cleanout fluid or disinfectant solution, therefore can directly carry out cleaning and sterilizing with the state that will attract button 18 to be installed on operating portion 12 to endoscope.
[the 2nd embodiment]
The card claw stop 52 of valve body 25a is contained in the inside of press operating part 25b in the attraction button 18 of the 1st embodiment, but attracts the front end of a pair of card claw stop portion in the button 80 to be exposed to outside the press operating part in the 2nd embodiment.
Among Figure 12 of state when Figure 11 of the state when expression attracts OFF and expression attract ON, as long as the different this point of structure that attract button 80 except linking plunger 81, the structure with the attraction button 18 of the 1st embodiment is identical basically.In addition, to part identical on function or the structure with attracting button 18, additional same-sign and omit its explanation.
Linking plunger 81 connecting valve body 81a and press operating part 81b forms.Shown in Figure 13 A and Figure 13 B, valve body 81a has main body axial region 50, valve portion 51 and plunger stream 61 with the valve body 25a of the 1st embodiment identically.But, quite be longer than the 1st embodiment from a pair of card claw stop 82 that the 1st upper end 50a is outstanding.Roughly the axial length with press operating part 81b is identical for the length of these card claw stops 82.Each blocks and is formed with the claw 82a that protrudes in the outside on the front end of claw stop 82 respectively.
Be formed with on the press operating part 81b to its patchhole that axially runs through 83.And, be formed with incision on the head 55 of press operating part 81b except its part and recess 85 of forming peripheral part.The part of the opening edge through cutting patchhole 83 on this recess 85 forms the engaging recessed part 86 that hangs up claw 82a.And, on patchhole 83,, in recess 85, be formed with and cut apart plate 87 recess 85 is divided into 2 mode.In addition, cut apart in the plate 87 outstanding a little and get in the patchhole 83 with patchhole 83 opposed parts.
The order that the binding plunger 81 of said structure is assembled in cylinder 24 is identical with the 1st embodiment, in lower end side cylinder opening 46 side direction earthen pipe roads 41, inserts after the valve body 81a a pair of card claw stop 82 of insertion to the patchhole 83 of press operating part 81b in.Thus, the claw 82a of a pair of card claw stop 82 hangs over engaging recessed part 86, thus connecting valve body 81a and press operating part 81b.Valve portion 51 is because not through in the 1st tapered portion 47, the diameter that therefore can make valve portion 51 obtains the effect identical with the 1st embodiment fully greater than the internal diameter of the 1st tapered portion 47.
A pair of card claw stop 82 runs through patchhole 83, and its claw 82a is exposed on the head 55.As representing with arrow among Figure 14 A, when decomposing for washing and sterilizing etc. when attracting button 18, through pinching a pair of card claw stop 82 of folder, shown in Figure 14 B, a pair of card claw stop 82 breaks away from from engaging recessed part 86.Under this state, can move press operating part 81b and valve body 81a in the other direction, thereby separate both.
In addition, because the effect that attracts button 80 is identical with the effect of the attraction button 18 explained in above-mentioned the 1st embodiment basically, therefore omit explanation.And, in the 2nd embodiment length of a pair of card claw stop 82 press operating part 81b axially on roughly the same, but can make the length of a pair of card claw stop 82 be longer than press operating part 81b.
In above-mentioned each embodiment, a pair of card claw stop 52,82 that is arranged at valve body 25a, 81a is sticked in connecting hole 56, the engaging recessed part 83 that is arranged on press operating part 25b, 81b, thereby distinguishes connecting valve body 25a, 81a and press operating part 25b, 81b.In addition, valve body and the binding of press operating part such as can utilize screw thread to combine, sell to link at connect mechanism arbitrarily.
In the above-mentioned embodiment; To link plunger 25 through the elastic restoring force of covering 26 edge part 66 and be maintained the OFF state that attracts; But for example also can between the front end of top 65 and cylinder 24, load onto helical spring etc., be made as the OFF state that attracts through this helical spring reinforcing.
In the above-mentioned embodiment, attract button to constitute, but can set arbitrarily the form of valve portion and valve seat, the form on earthen pipe road by the plunger with valve portion 51 25, cylinder 24 with earthen pipe road 41 and valve seat 42.
In above-mentioned each embodiment; There are valve body 25a, 81a and press operating part 25b, 81b near the binding respectively of upper end side cylinder opening 35; But can suitably change the axial length of valve body and press operating part, link above upper end side cylinder opening 35 or in the earthen pipe road 41.
In the above-mentioned embodiment; For example understand the attraction button 18 that is arranged at the endoscope 10 that is inserted into trachea, but can also apply the present invention to be arranged at the attraction button that is used to switch attraction ON/OFF of the various endoscopies such as big intestinal endoscopy that for example are inserted into large intestine.
Claims (17)
1. attraction button that is used for endoscope; Said endoscope has operating portion and is inserted in endoceliac insertion section; Be provided with at said operating portion and attract passage and passing away, said attraction channel connection is in the attraction mouth at the front opening of said insertion section, and said passing away is connected in negative pressure source; Wherein, said attraction button possesses:
Cylinder; Be arranged at said operating portion; Have the cylinder main body, run through this cylinder main body the earthen pipe road, be disposed at the valve seat in this earthen pipe road and be formed at the passing away inlet in the said earthen pipe road; Said earthen pipe road has the 1st cylinder opening and the 2nd cylinder opening, and said the 1st cylinder open communication is in said attraction passage; And
Link plunger; Be embedded in said earthen pipe road sliding freely, this binding plunger possesses the press operating part that is inserted in the valve body in the said earthen pipe road and gives prominence to from said cylinder main body with the state that is linked to this valve body in said the 2nd cylinder open side from said the 1st cylinder opening, and said valve body has the valve portion that can be contacted with said valve seat; When not pushing said press operating part; Said binding plunger is set in the closed position, if push said press operating part, then said binding plunger is set in open position; In the said closed position; Said valve portion is contacted with said valve seat and interdicts said passing away and said attraction passage, and in said open position, said plunger is to moving towards the direction of said the 1st cylinder opening from said the 2nd cylinder opening; Through making said valve portion away from said valve seat, thus through said passing away inlet with said attraction channel connection in said passing away.
2. attraction button as claimed in claim 1 wherein, further has:
Connecting hole or engaging recessed part are formed at a side of said valve body and said press operating part; And
Block claw stop, be formed at the opposing party of said valve body and said press operating part, can be sticked in said connecting hole or engaging recessed part.
3. attraction button as claimed in claim 2, wherein,
Be linked to the deformable lid of said press operating part and said cylinder main body, cover said press operating part around with the residing cylinder of said the 2nd cylinder opening upper end.
4. attraction button as claimed in claim 3, wherein,
When pushing of said press operating part was disengaged, said lid was put on said press operating part come through elastic force, so that said binding plunger is back to said closed position.
5. attraction button as claimed in claim 3, wherein,
Said card claw stop the opposition side of said valve portion with to above outstanding mode be arranged at said valve body,
Said connecting hole or engaging recessed part are arranged at said press operating part.
6. attraction button as claimed in claim 5, wherein,
Further possess patchhole, this patchhole is formed at the bottom of said press operating part to insert the mode of said card claw stop, and extends to the glide direction of said binding plunger.
7. attraction button as claimed in claim 6, wherein,
To extending with the orthogonal direction of the glide direction of said binding plunger, card only is inserted in the said claw of the said card claw stop of said patchhole to said connecting hole on the said connecting hole with the mode of the opening in the outside of said patchhole and said press operating part.
8. attraction button as claimed in claim 7 wherein, further possesses:
Passage is formed at the periphery of said lid, when said binding plunger is set in said closed position, through the part sealing of said lid; And
The gap is formed between said the 2nd cylinder opening and the said binding plunger, and when said binding plunger was set in said open position, the air that gets in the said lid from said passage flowed into said passing away through said gap.
9. attraction button as claimed in claim 8, wherein,
Said passage and said connecting hole are opposed, so that can confirm that from the outside of said lid the said connecting hole and the card of card claw stop end state through said passage,
Be provided with the rotation limiting mechanism, this rotation limiting mechanism prevents the relative rotation of said binding plunger and said lid, so that keep the opposed relationship of said passage and said connecting hole.
10. attraction button as claimed in claim 9, wherein,
Push said claw through said passage and said connecting hole, the card that can remove said card claw stop and said connecting hole thus ends.
11. attraction button as claimed in claim 5, wherein,
Further possess patchhole, this patchhole runs through said press operating part with the mode of inserting said card claw stop, and extends to the glide direction of said binding plunger.
12. attraction button as claimed in claim 11, wherein,
Said engaging recessed part is adjacent to said patchhole on the top of said press operating part and forms, and hangs up the said claw of the said card claw stop that is inserted in said insertion section.
13. attraction button as claimed in claim 12, wherein,
Said card claw stop is provided with 2 in the position of departing from 180 degree, when the said claw of said 2 card claw stops is pinched when operation folder, can remove engaging of each claw and said engaging recessed part.
14. attraction button as claimed in claim 5, wherein,
Said passing away inlet is formed between said valve seat and said the 2nd cylinder opening,
Said valve portion is positioned at the lower end of said valve body.
15. attraction button as claimed in claim 14, wherein,
Further possess the plunger stream, this plunger stream is formed between the upper end of said valve portion and said plunger, and is opposed with said passing away inlet, forms through the outer peripheral face that cuts said valve body.
16. attraction button as claimed in claim 14, wherein,
Said valve seat and said valve portion are from said the 1st cylinder opening towards said the 2nd cylinder opening and the taper shape that diameter narrows down.
17. attraction button as claimed in claim 14, wherein,
Said negative pressure source is a suction pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-219441 | 2010-09-29 | ||
| JP2010219441A JP5552014B2 (en) | 2010-09-29 | 2010-09-29 | Endoscope suction button |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102697445A true CN102697445A (en) | 2012-10-03 |
| CN102697445B CN102697445B (en) | 2015-03-04 |
Family
ID=46167499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110303858.1A Expired - Fee Related CN102697445B (en) | 2010-09-29 | 2011-09-28 | Absorbing button for endoscope |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5552014B2 (en) |
| CN (1) | CN102697445B (en) |
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| CN106413515A (en) * | 2014-01-23 | 2017-02-15 | 数字内镜检查股份有限公司 | Fluid block for endoscope control part and endoscope |
| US9955856B2 (en) | 2013-12-19 | 2018-05-01 | Digital Endoscopy Gmbh | Device and a method for manufacturing an elongated hollow profile element, an elongated hollow profile element, and a bending section for an endoscope |
| US10076233B2 (en) | 2013-10-30 | 2018-09-18 | Digital Endoscopy Gmbh | Device for transmitting a deflection movement, endoscope bending control unit, and endoscope |
| US10080483B2 (en) | 2013-10-30 | 2018-09-25 | Digital Endoscopy Gmbh | Secondary endoscope mountable to a mother endoscope and a combination of a mother endoscope and a secondary endoscope |
| US10092171B2 (en) | 2013-10-30 | 2018-10-09 | Digital Endoscopy Gmbh | Deflection movement transmission device, endoscope bending controller and endoscope |
| US10441142B2 (en) | 2013-07-22 | 2019-10-15 | Digital Endoscopy Gmbh | Sealing component for an endoscope connector |
| US10441152B2 (en) | 2014-01-24 | 2019-10-15 | Digital Endoscopy Gmbh | Tracking the fundamental frequency of a voice signal in real time |
| CN110430797A (en) * | 2017-03-20 | 2019-11-08 | 柯惠有限合伙公司 | The reusable operation device of endoscope |
| US10939803B2 (en) | 2013-12-02 | 2021-03-09 | Digital Endoscopy Gmbh | Endoscope head and endoscope |
| US11278187B2 (en) | 2015-08-07 | 2022-03-22 | Digital Endoscopy Gmbh | Endoscope head |
| CN115486795A (en) * | 2022-11-22 | 2022-12-20 | 浙江华诺康科技有限公司 | Endoscope handle and suction valve |
| WO2023071853A1 (en) * | 2021-10-28 | 2023-05-04 | 湖南省华芯医疗器械有限公司 | Suction valve assembly and endoscope |
| WO2023071852A1 (en) * | 2021-10-28 | 2023-05-04 | 湖南省华芯医疗器械有限公司 | Suction button, suction valve assembly and endoscope |
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| JP6945073B2 (en) * | 2018-05-21 | 2021-10-06 | オリンパス株式会社 | Method for Manufacturing Endoscope Pipeline Switching Device, Endoscope, and Endoscope Pipeline Switching Device |
| DE102020129208A1 (en) | 2020-11-05 | 2022-05-05 | Ambu A/S | Endoscope with a suction valve with sealing button |
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| CN106413515B (en) * | 2014-01-23 | 2019-02-05 | 数字内镜检查股份有限公司 | Bulk fluid and endoscope for endoscopic procedure component |
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| CN115486795A (en) * | 2022-11-22 | 2022-12-20 | 浙江华诺康科技有限公司 | Endoscope handle and suction valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012071023A (en) | 2012-04-12 |
| JP5552014B2 (en) | 2014-07-16 |
| CN102697445B (en) | 2015-03-04 |
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