CN102415868B - Endoscope - Google Patents
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- CN102415868B CN102415868B CN201110286688.0A CN201110286688A CN102415868B CN 102415868 B CN102415868 B CN 102415868B CN 201110286688 A CN201110286688 A CN 201110286688A CN 102415868 B CN102415868 B CN 102415868B
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- thread part
- insertion section
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Abstract
The invention provides a kind of endoscope, it is fully large relative to the maximum adjustment amount of the intrusion of operating portion for adjusting insertion section.Intrusion adjustment part possesses side, insertion section link, operating portion side link and adjustment circle.The rearward end of described insertion section is fixed on side, described insertion section link.Described operating portion side link is fixed on the housing of described operating portion.First internal thread part of described adjustment circle is formed at inner peripheral surface, and the first external thread part being left-hand thread relative to the first internal thread part is formed at outer peripheral face.Second external thread part of described first internal thread part and side, described insertion section link screws togather, and the second internal thread part of described first external thread part and described operating portion side link screws togather.If make described adjustment enclose to rotate, then move described insertion section side link and described operating portion side link to mutual rightabout.
Description
Technical field
The present invention relates to the endoscope of a kind of adjustable insertion section relative to the intrusion of operating portion.
Background technology
Therapeutic medical endoscope has insertion section in insertosome and is arranged at the operating portion of rear end side of insertion section.Insertion section is made up of hard tip portion, bending section and flexible portion.Hard tip portion is the resin material of hard, is made the cylindrical shape that front end is closed, wherein accommodates imaging apparatus and lighting lens etc. such as thing lens, ccd image sensors.
Bending section is made up of interconnected multiple joint components, bends up and down to change the direction of hard tip portion.Flexible portion is made up of microscler flezxible coupling, between attended operation portion and bending section.This flezxible coupling metal strip material is being rolled into the tubular dictyosome of coated braided metal line or resin thread on spiral helicine serpentine pipe and at its outer peripheral face with the coated tubing of the exodermis be made up of resin.Further, flezxible coupling was fitted together to mouthpiece at two ends before coated exodermis.This flezxible coupling, owing to being have flexual structure, therefore there is deviation in length sometimes.
In insertion section interpolation have the steel wire for making bending section bend or for transmit image pickup signal from imaging apparatus and transmission drive the signal cable of the control signal of imaging apparatus, for illuminating window transmission from the photoconduction of the illumination light of light supply apparatus and the inner matter for the isometric shape of pliers passage that the treatment tools such as pliers guided to the pliers outlet being arranged at hard tip portion.
In the assembling procedure of the housing for insertion section being linked to operating portion, the inner matters such as steel wire, signal cable, photoconduction, pliers passage being inserted enclosure interior, and the rearward end of flezxible coupling is inserted and is fixed on the front of housing.Now, due to the size of flezxible coupling existing deviation, therefore inner matter occurs lax, or inner matter does not arrive the precalculated position of operating portion or adapter etc. sometimes.In this case, have to regulate the length of inner matter to carry out cutting off or re-assemblying insertion section, very bothersome.
In addition, in endoscope, sometimes there is the change in size of flezxible coupling or inner matter because of deterioration all the year round.Therefore, when carrying out the maintenance work of endoscope, have to according to the length of the change in size adjustment inner matter caused because of deterioration all the year round, identically with assembling procedure also bothersome in maintenance work.
Therefore, in the clear 62-164432 publication of Japanese Patent Publication, record and possess the endoscope of change insertion section relative to the mechanism of the intrusion (insertion) of operating portion in order to maintenance work can be carried out like a cork.Have in the endoscope of this intrusion change mechanism, near rear end, split flezxible coupling, form the external thread part in left-hand thread respectively in the periphery of 2 ends that this has been split.The external screw thread of these 2 ends links by adjusting circle.The rear end side inner circumferential of this adjustment circle and front inner circumferential are formed with the internal thread part screwed togather with each external thread part respectively.If adjustment circle rotates, then each external thread part is in the relation of left-hand thread mutually, and therefore 2 ends can be moved round about and pull open its interval or close.Further, when carrying out assembling procedure or maintenance work, when the inner matter appearance in insertion section is lax or inner matter does not arrive at precalculated position, adjustment circle is rotated and adjusts the intrusion of insertion section relative to operating portion.
But, in the endoscope recorded in the clear 62-164432 publication of Japanese Patent Publication, owing to being formed with 2 internal thread parts of left-hand thread form at the inner peripheral surface of adjustment circle, therefore the changing range of the intrusion of insertion section, the axial length that namely maximum adjustment amount is defined in adjustment circle deducts adjustment circle and each external thread part screws togather the size of the amount of required axial length.Therefore, relaxing or adjusting the intrusion of insertion section until when inner matter arrives at the precalculated position of operating portion or adapter, adjustment amount is abundant not sometimes at removal inner matter.Further, configuration adjustment circle operating portion front due to the inner space of configuration component limited, be therefore difficult in order to increase maximum adjustment amount lengthen adjustment circle axial length.
Summary of the invention
The object of the present invention is to provide a kind of can fully increase for the endoscope of adjustable insertion section relative to the maximum adjustment amount of the intrusion of operating portion.
To achieve these goals, endoscope of the present invention has side, the insertion section link of the rearward end being fixed on insertion section, the operating portion side link being fixed on the housing of operating portion and adjustment circle.First internal thread part of described adjustment circle is formed at inner peripheral surface, and the first external thread part being left-hand thread relative to described first internal thread part is formed at outer peripheral face.One side and described first internal thread part of described insertion section side link and described operating portion side link screw togather, and the opposing party and described first external thread part of described insertion section side link and described operating portion side link screw togather.Described insertion section is disposed with hard tip portion, bending section and flexible portion from front.Described insertion section is linked to described operating portion by side, described insertion section link, described operating portion side link and described adjustment circle.Described insertion section and described operating portion are inserted with end winding support in the inner matter of the microscler shape of described hard tip portion.
Described first internal thread part and described first external thread part are preferably disposed on overlapped position.Preferably form the second external thread part screwed togather with described first internal thread part at side, described insertion section link, be formed with the second internal thread part screwed togather with described first external thread part at described operating portion side link.
The pitch of described first internal thread part of preferred described adjustment circle is different from the pitch of described first external thread part.Further, the preferred described pitch of pitch wider than described first external thread part adjusting described first internal thread part of circle.
Preferably in the leading section of described operating portion, cylindric guard block is installed.This guard block holds side, described insertion section link, described adjustment circle and described operating portion side link.Preferably load onto O type circle in the leading section of side, described insertion section link, watertightness is contacted with the inner peripheral surface of described guard block to carry out waterproof countermeasure.
The first locking nut that the state preferably possessing to be connected to the front end of described adjustment circle is screwed together in described second external thread part and the second locking nut being screwed together in described first external thread part with the state of the front end being connected to described operating portion side link relax to prevent threaded portion.
According to the present invention, owing to forming internal thread part at the inner peripheral surface of adjustment circle, form external thread part at outer peripheral face, make side, insertion section link be screwed together in these a side, operating portion side link is made to be screwed together in the opposing party, therefore, it is possible to guarantee the maximum adjustment amount of abundant length.Thus, in most cases without the need to cutting off the length of the inner matter of microscler shape, therefore the assembling procedure of endoscope or maintenance procedures become light.
Accompanying drawing explanation
Fig. 1 is the key diagram of the structure summarily representing endoscope;
Fig. 2 is the front view of hard tip portion;
Fig. 3 is the sectional view of flexible portion;
Fig. 4 be represent operating portion front end near sectional view;
Fig. 5 is the axonometric chart representing intrusion adjustment part;
Fig. 6 is the sectional view of adjustment circle; And
Fig. 7 is the key diagram of the maximum adjustment amount for illustration of intrusion adjustment part.
Detailed description of the invention
In Fig. 1, endoscope 10 possesses the insertion section 11 being inserted in body cavity (such as large intestine) and the operating portion 12 be connected with in this insertion section 11.Connection universal flexible cord 13 on operating portion 12, the front end of general flexible cord 13 is provided with light source adapter 14.In addition, cable 15, from light source adapter 14 branch, is provided with processor adapter 16 in the front end of this cable 15.Light source adapter 14 and processor adapter 16 are detachably connected to light supply apparatus 17 and processor device 18 respectively.
Operating portion 12 is provided with angle knob 20 or for from the front end of insertion section 11 ejection air, the supplying gas or send water button 21, attract button 22 and insert the forceps channel 23 of the treatment tools such as electric mes of water.Forceps channel 23 is connected to the pliers passage 24 (with reference to figure 3 and Fig. 4) be disposed in insertion section 11.
Insertion section 11 is made up of hard tip portion 25, bending section 26 and flexible portion 27 successively from front end.Flexible portion 27 has the length of about 1.3m ~ 1.6m in order to make hard tip portion 25 arrive the destination locations in body.Hard tip portion 25 is resin or the metal material of hard, is formed as the tubular that front end is closed.As everyone knows, in bending section 26, multiple joint component is interconnected, and with the operations linkage of angle knob 20 and push-and-pull operates steel wire 45, flexure operation is carried out in direction vertically and horizontally.
As shown in Figure 2, the front end face 25a of hard tip portion 25 is provided with camera window 31, illuminating window 32, supplies gas or delivery nozzle 33 and pliers outlet 34 etc.Illuminating window 32 is configured with 2 in its both sides in the mode clipping camera window 31.Camera window 31 is equipped with a part for the imaging len of the picture light for reading in endoceliac look-out station.As everyone knows, in the depths of imaging len, be assembled with the imaging apparatus such as ccd image sensor or cmos image sensor to take the image of look-out station.
Illuminating window 32 is assembled with a part for lighting lens.The behind of lighting lens is equipped with the exit end guided from the photoconduction 42 (with reference to figure 3 and Fig. 4) of the illumination light of the radiation source of light supply apparatus 17.Pliers outlet 34 is communicated with the forceps channel 23 being arranged at operating portion 12 by pliers passage 24.Supply gas or delivery nozzle 33 by being arranged at supplying gas or sending water button 21 to operate to spray washings or the air of the dirt for washing camera window 31 off of operating portion 12.
As shown in Figures 3 and 4, form the flezxible coupling 36 of flexible portion 27 have the serpentine pipe 37 being positioned at inner side, this serpentine pipe 37 coated tubular dictyosome 38, be embedded in the mouthpiece 39 at two ends and cover the resin-made exodermis 40 of outer peripheral face.Metal strip material is wound into helical form and is formed by serpentine pipe 37, gives pliability and protection inside.Tubular dictyosome 38 is the parts guipure woven by metal wire or resin thread being wound in coiled type.
Flexible portion 27 is insert photoconduction 42, pliers passage 24 in the inside of flezxible coupling 36, supply gas or send the structure of aquaporin-4 3, multicore cable 44 and multiple inner matters such as operation steel wire 45 etc.
One end of multicore cable 44 is connected to imaging apparatus; it is be mainly used in sending signal for driving imaging apparatus from processor device 18; and for the image pickup signal from imaging apparatus being delivered to the cable of processor 18, in the structure being covered multiple holding wire by protection tunicle.Processor 18 carries out various image procossing to the image pickup signal from endoscope 10 and converts video signal to.This video signal delivers to the display 46 being connected to processor device 18, as the display of observation image.
Gap be inserted in the photoconduction 42 of the inside of flezxible coupling 36, pliers passage 24, supply gas or send aquaporin-4 3, multicore cable 44, the isometric shape of operation steel wire 45 the end winding support of inner matter one side in hard tip portion 25.Further, pliers passage 24 and supply gas or send the end winding support of its opposing party of aquaporin-4 3 in the inside of operating portion 12.Photoconduction 42, multicore cable 44 pass through the inside of operating portion 12 and general flexible cord 13, the end winding support of the opposing party of photoconduction 42 in the inside of adapter 14, multicore cable 44 further by the inside of adapter 14 and cable 15 and the end winding support of the opposing party in the inside of adapter 16.
As shown in Figures 4 and 5, the front of the housing 49 of operating portion 12 is provided with intrusion adjustment part (insertion guiding mechanism) 50, guard block 51 and anti-folding rubber 52.Insertion section 11 is linked to housing 49 by intrusion adjustment part 50.Housing 49 is assembled angle knob 20, supply gas or send water button 21 and attract button 22 etc., and hold the flexure operation mechanism (not shown) etc. of the operation push-and-pull operation steel wire 45 according to angle knob 20.The end of the opposing party of operation steel wire 45 links in the inside of housing 49 and bending actuating mechanism.
Intrusion adjustment part 50 has side, insertion section link 53, operating portion side link 54, adjustment circle 55 and locking nut 56,57 etc.Adjustment circle 55 is the cylinders forming the first internal thread part 61 at inner peripheral surface and form the first external thread part 62 at outer peripheral face.This first external thread part 62 is left-hand thread relative to the first internal thread part 61.At this, left-hand thread refers to that guiding direction is contrary screw thread, and when a side is right-hand thread, the opposing party is left-hand thread, and on the contrary, when a side is left-hand thread, the opposing party is right-hand thread.Screwed portion side link 53 on first internal thread part 61, and the first external thread part 62 screws togather operating portion side link 54.
Side, insertion section link 53, in roughly cylindric, is formed with the second external thread part 64 in the periphery of rear end side.This second external thread part 64 screws togather with the first internal thread part 61 of adjustment circle 55.Further, the inner peripheral surface of the front of side, insertion section link 53 forms insertion section maintaining part 63.The internal diameter of this insertion section maintaining part 63 determines according to the external diameter of flezxible coupling 36.The internal diameter of the inner peripheral surface of side, insertion section link 53, diminishing side more rearward than the part forming insertion section maintaining part 63, is formed with ladder on the border with insertion section maintaining part 63 and differs from 65.In insertion section 11, the rearward end of flezxible coupling 36 is embedded in insertion section maintaining part 63, and press-in extremely differs from the position of 65 collisions with ladder, such as, be fixed on side, insertion section link 53 by screw thread or binding agent etc.
In addition, side, insertion section link 53 is provided with flange part 66 at front end 53a.This flange part 66 has pair of flanges, between be formed with groove 66a.The O type circle 67 of waterproof is embedded with in this groove 66a.O type circle 67 is made up of elastomeric elements such as rubber, carries out watertightness maintenance between guard block 51.
Operating portion side link 54 forms the second internal thread part 68 screwed togather with the first external thread part 62 of adjustment circle 55 at inner peripheral surface, be formed with large-diameter portion 69 at outer peripheral face.This operating portion side link 54 is fitted together to large-diameter portion 69 at the peristome 49a of housing 49, is fixed on housing 49 by screw thread or binding agent etc.
First internal thread part 61 of adjustment circle 55 is screwed together in the second external thread part 64 of side, insertion section link 53, is screwed together in the second internal thread part 68 of operating portion side link 54 relative to first external thread part 62 of the first internal thread part 61 in left-hand thread.By rotating adjustment circle 55, side, insertion section link 53 and operating portion side link 54 move mutually round about, its narrower intervals or broaden.Thereby, it is possible to adjustment insertion section 11 is relative to the intrusion (the outstanding length in intubating length or housing) of operating portion 12.
Adjustment circle 55 is disposed in the first internal thread part 61 and the second external thread part 62 is adjusting position overlapped on the radial direction of circle 55.In present embodiment, the overall length throughout the inner peripheral surface of adjustment circle 55 is formed with the first internal thread part 61, and the overall length throughout outer peripheral face is formed with the first external thread part 62.And, because adjustment circle 55 has the first internal thread part 61 at inner peripheral surface, at outer peripheral face, there is the first external thread part 62, therefore, it is possible to processing when carrying out formation first internal thread part 61 and the first external thread part 62 like a cork, and the pitch of the first internal thread part 61 and the first external thread part 62 can be set arbitrarily.In present embodiment, the pitch P of the first internal thread part 61 in adjustment circle 55
abe formed as the pitch P wider than the first external thread part 62
b(with reference to figure 6).Further particularly, the ratio of the pitch of the first internal thread part 61 and the first external thread part 62 becomes P
a: P
b=2: 1.Thus, with regard to the amount of movement of the rotation amount relative to adjustment circle 55, side, insertion section link 53 is comparatively large, and operating portion side link 54 diminishes.
Locking nut 56,57 uses to prevent from adjusting the lax of circle 55 and operating portion side link 54.Locking nut 56,57 is relative with the front end face adjusting circle 55 and operating portion side link 54 is always screwed together in the second external thread part 64 and the first external thread part 62 respectively.Thus, adjustment circle 55 not easily relaxes relative to side, insertion section link 53, and operating portion side link 54 not easily relaxes relative to adjustment circle 55.
Guard block 51 is installed on the leading section of housing 49, covers the outer peripheral face of intrusion adjustment part 50.This guard block 51 is such as fixed by the leading section screwing in housing 49.Guard block 51 is formed with the movable passageway 70 of side, insertion section link 53 movement in the front of inner peripheral surface.This movable passageway 70 adheres to above-mentioned O type circle 67.Thus, be watertightness structure in the front of operating portion 12, prevent body fluid or water from entering the inside of operating portion 12.In addition, the minor diameter fit due to movable passageway 70 is flush-mounted in the O type circle 67 of side, insertion section link 53 and is formed, and the adjustment circle 55 that therefore external diameter is greater than side, insertion section link 53 cannot move in the inside of movable passageway 70.
Anti-folding rubber 52 is arranged to cover near the rearward end of flezxible coupling 36 from the outer peripheral face of guard block 51, and is formed as external diameter and reduces gradually towards flezxible coupling 36 side from housing 49 side.
Then, the assembling of insertion section 11 and housing 49 is described.This insertion section 11 is provided with hard tip portion 25, bending section 26 and flexible portion 27 on the assembly line of insertion section.And in following state: assemble each assemblies such as imaging len, imaging apparatus and lighting lens in hard tip portion 25, fixing photoconduction 42, pliers passage 24, supply gas or send the end of a side of inner matter of aquaporin-4 3, multicore cable 44 and the isometric shape of operation steel wire 45, and in flezxible coupling 36 interpolation inner matter.
In addition, operating portion 12 is in following state: on the assembly line of operating portion, the state of intrusion adjustment part 50 is linked relative to housing 49, namely operating portion side link 54 is fixed on housing 49, connect side, insertion section link 53 and operating portion side link 54 by adjustment circle 55, and prevent from relaxing by locking nut 56,57.The position of intrusion adjustment part 50 to adjustment circle 55 adjusts, to be positioned at the centre position of such as maximum adjustment amount, i.e. and the position of the spaced furthest of side, insertion section link 53 and operating portion side link 54 and the centre of hithermost position.Further, now, guard block 51 and anti-folding rubber 52 are not contained in housing 49 and intrusion adjustment part 50.In addition, the push-and-pull operation bending actuating mechanism of steel wire 45 or bent angle turn round 20, button 21,22 etc. is not yet assembled in housing 49.
In the assembling of insertion section 11 and housing 49, first the rear end side of the inner matter of insertion section 11 is inserted in the inside of housing 49 by the inside of side, insertion section link 53, operating portion side link 54 and adjustment circle 55.In addition, in following state: by insertion section 11 is pressed into housing 49 side, and the rearward end of flezxible coupling 36 insertion insertion section maintaining part 63 to mouthpiece 39 and ladder are differed from the position of 65 collisions, thus link insertion section 11 and housing 49 by intrusion adjustment part 50.
Linking insertion section 11 with under the state of housing 49, after lax locking nut 56,57, the adjustment circle 55 of intrusion adjustment part 50 is rotated, adjustment insertion section 11 is relative to the intrusion of operating portion 12.Now, the inner matter of microscler shape is inserted through the inside of housing 49.Measure the length that is inserted through the inner matter of this housing 49 or the length from the outstanding inner matter of housing 49, according to these length, adjustment insertion section 11 is based on the intrusion of intrusion adjustment part 50.That is, when inner matter occurs lax, relative movement is carried out to the direction pulling open side, insertion section link 53 and operating portion side link 54.On the contrary, when the length of inner matter does not arrive at precalculated position, adjustment circle 55 is rotated to the direction near side, insertion section link 53 and operating portion side link 54, adjustment insertion section 11 is relative to the intrusion of operating portion 12.After carrying out the adjustment based on this intrusion adjustment part 50, tightening retaining nuts 56,57.Guard block 51 and anti-folding rubber 52 are loaded on the outer peripheral face of intrusion adjustment part 50.Finally, bending actuating mechanism, angle knob 20, button 21,22 etc. are assembled in housing 49, and link cable, adapter class, the assembling of endoscope 10 can be completed.
As mentioned above, owing to being formed with the first internal thread part 61 and the first external thread part 62, therefore, it is possible to fully guarantee the intrusion of insertion section 11 relative to operating portion 12 at the inner peripheral surface and outer peripheral face that adjust circle 55 respectively.In present embodiment, owing to being formed with the first internal thread part 61 and the first external thread part 62, therefore, it is possible to make the value that maximum adjustment amount becomes fully large in mode overlapping on the radial direction of adjustment circle 55.In addition, in Fig. 7, show the maximum adjustment amount L in the intrusion adjustment part 50 of present embodiment.When changing intrusion according to intrusion adjustment part 50, this maximum adjustment amount L is for insertion section 11 is relative to the position (position shown in Fig. 7 (A)) of the most forward side of operating portion 12 and the difference leaning on inboard position (position shown in Fig. 7 (B)) most.In addition, in Fig. 7, in order to prevent the complicated of accompanying drawing, omit the inner matter etc. of insertion section 11.
In endoscope in the past, owing to being formed with 2 internal thread parts mutually in left-hand thread at the inner peripheral surface of adjustment circle, therefore the axial length that the axial length adjusting circle deducts the amount that each external thread part screws togather is of a size of maximum adjustment amount, but the maximum adjustment amount of present embodiment can be greater than the axial length of adjustment circle 55.
In addition, in present embodiment, form the second external thread part 64 screwed togather with the first internal thread part 61 at side, insertion section link 53, form the second internal thread part 68 screwed togather with the first external thread part 62 at operating portion side link 54.Namely; because side, insertion section link 53 is positioned at the inner peripheral surface side of adjustment circle 55; operating portion side link 54 is positioned at the outer peripheral face side of adjustment circle 55; therefore, it is possible to widely form the inner space of operating portion side link 54; such as, assembly beyond the inner matter that can also configure flezxible coupling 36, such as, guide the guiding parts of operation steel wire 45 or fixing or protection photoconduction 42 or multicore cable 44 parts etc.
In addition; as above-mentioned; because guard block 51 and the O type circle 67 being flush-mounted in side, insertion section link 53 adhere to; therefore the internal diameter of the movable passageway 70 of front is formed smaller; and adjustment circle 55 cannot move in this movable passageway 70, but the adjustment circle 55 of present embodiment is due to the pitch P of the first internal thread part 61
abe formed as the pitch P being greater than the first external thread part 62
b, therefore as the relative amount of movement relative to operating portion side link 54, side, insertion section link 53 can be made to move significantly relative to the amount of movement of adjustment circle 55.Therefore, it is possible to form movable passageway 70 longlyer, and adjustment circle 55 can be made to move on the position of not interfering relative to movable passageway 70.Like this, form by longer the movable passageway 70 adhered to O type circle 67, thus the watertightness of operating portion 12 can be kept in the gamut of the maximum adjustment amount L of intrusion adjustment part 50.
In addition, in above-mentioned embodiment, when exemplifying the assembling procedure carrying out endoscope 10, according to the length of the inner matter of insertion section 11, adjustment insertion section 11 is relative to the situation of the intrusion of operating portion 12, but when carrying out maintenance work, the present invention can also be utilized when adjusting according to the change in size of the flezxible coupling 36 caused because of deterioration all the year round or inner matter.At this moment; by dismounting guard block 51 and anti-folding rubber 52; or move to the front of insertion section 11, thus the adjustment circle 55 of intrusion adjustment part 50 can be made to expose, and make adjustment circle 55 rotate to adjust the intrusion of insertion section 11 relative to operating portion 12 like a cork.
In above-mentioned embodiment, except the first internal thread part 61 adjusting circle 55 to screw togather with side, insertion section link 53 and except the structure that screws togather of the first external thread part 62 and operating portion side link 54, also the first external thread part 62 of adjustment circle 55 can be made to screw togather with side, insertion section link 53, the first internal thread part 61 is screwed togather with operating portion side link 54.Further, in above-mentioned embodiment, the pitch P of the first internal thread part 61 of adjustment circle 55
abe formed as the pitch P being greater than the first external thread part 62
bbut, also can be formed as the pitch P of the first external thread part 62
bbe greater than the pitch P of the first internal thread part 61
a.
In addition, in above-mentioned embodiment, with the fujinon electronic video endoscope observed the image utilizing imaging apparatus to take the state of subject for example, but the present invention can also be applied to the fibre scope adopting optical image to lead the state of observing subject.
Claims (8)
1. an endoscope, possesses: insertion section, divides into hard tip portion, bending section, flexible portion successively from front; Operating portion, connects described flexible portion; And microscler shape inner matter, inside insert in described insertion section and described operating portion, and extend from described hard tip portion, it is characterized in that possessing:
Side, insertion section link, is fixed on the rearward end of described insertion section;
Operating portion side link, is fixed on the housing of described operating portion; And
Adjustment circle, first internal thread part is formed at this inner peripheral surface throughout the overall length of the inner rim of described adjustment circle, this outer peripheral face is formed at relative to the overall length of the first external thread part that described first internal thread part is left-hand thread throughout the neighboring of described adjustment circle, one side of described first internal thread part and described insertion section side link and described operating portion side link screws togather, and the opposing party of described first external thread part and described insertion section side link and described operating portion side link screws togather.
2. endoscope as claimed in claim 1, is characterized in that,
Described first internal thread part of described adjustment circle and described first external thread part configure in overlapped mode on the radial direction of described adjustment circle.
3. endoscope as claimed in claim 2, is characterized in that,
Be formed with the second external thread part screwed togather with described first internal thread part at side, described insertion section link, be formed with the second internal thread part screwed togather with described first external thread part at described operating portion side link.
4. endoscope as claimed in claim 2, is characterized in that,
The pitch of described first internal thread part of described adjustment circle is different from the pitch of described first external thread part.
5. endoscope as claimed in claim 4, is characterized in that,
The pitch of described first internal thread part of described adjustment circle is greater than the pitch of described first external thread part.
6. endoscope as claimed in claim 3, is characterized in that,
Possess the guard block of the cylindrical shape of the leading section being fixed on described operating portion, this guard block holds side, described insertion section link, described adjustment circle and described operating portion side link.
7. endoscope as claimed in claim 6, is characterized in that,
Load onto O type circle in the leading section of side, described insertion section link, this O type circle contacts with the inner peripheral surface watertightness of described guard block.
8. endoscope as claimed in claim 7, is characterized in that possessing
First locking nut, is screwed together in described second external thread part with the state of the front end being connected to described adjustment circle; And
Second locking nut, is screwed together in described first external thread part with the state of the front end being connected to described operating portion side link.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-213742 | 2010-09-24 | ||
| JP2010213742A JP5457318B2 (en) | 2010-09-24 | 2010-09-24 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102415868A CN102415868A (en) | 2012-04-18 |
| CN102415868B true CN102415868B (en) | 2015-09-16 |
Family
ID=45940695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110286688.0A Expired - Fee Related CN102415868B (en) | 2010-09-24 | 2011-09-23 | Endoscope |
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| Country | Link |
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| JP (1) | JP5457318B2 (en) |
| CN (1) | CN102415868B (en) |
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|---|---|---|---|---|
| CN103908213A (en) * | 2012-12-29 | 2014-07-09 | 上海澳华光电内窥镜有限公司 | Detachable endoscopic device |
| CN109303543A (en) * | 2018-12-04 | 2019-02-05 | 杭州好克光电仪器有限公司 | Electronic hysteroscope |
| CN110367907B (en) * | 2019-08-07 | 2024-04-12 | 湖南省华芯医疗器械有限公司 | Hand-held end of endoscope |
| CN112965235B (en) * | 2021-02-04 | 2022-09-30 | 深圳市微视光电科技有限公司 | Endoscope probe |
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| JP2000237120A (en) * | 1999-02-24 | 2000-09-05 | Toshiba Corp | Endoscope |
| DE10018742B4 (en) * | 2000-04-15 | 2004-09-16 | OKIN Gesellschaft für Antriebstechnik mbH & Co. KG | Device for adjusting parts which are movable relative to one another |
| JP4311949B2 (en) * | 2003-02-26 | 2009-08-12 | Ｈｏｙａ株式会社 | Endoscopic clip device |
| JP4589664B2 (en) * | 2004-06-17 | 2010-12-01 | Ｈｏｙａ株式会社 | Endoscope treatment device raising device |
| JP2006020885A (en) * | 2004-07-09 | 2006-01-26 | Pentax Corp | Treating tool raising device for endoscope |
| JP4794934B2 (en) * | 2005-07-22 | 2011-10-19 | オリンパスメディカルシステムズ株式会社 | Endoscope |
| JP4848390B2 (en) * | 2008-04-15 | 2011-12-28 | 吉原鉄道工業株式会社 | Telescopic mechanism |
-
2010
- 2010-09-24 JP JP2010213742A patent/JP5457318B2/en not_active Expired - Fee Related
-
2011
- 2011-09-23 CN CN201110286688.0A patent/CN102415868B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610709A (en) * | 2007-03-29 | 2009-12-23 | 奥林巴斯医疗株式会社 | Articulated bending mechanism and the articulated medical device that possesses articulated bending mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102415868A (en) | 2012-04-18 |
| JP5457318B2 (en) | 2014-04-02 |
| JP2012065880A (en) | 2012-04-05 |
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