CN103908305B - Ultrasonic endoscope - Google Patents

Ultrasonic endoscope Download PDF

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Publication number
CN103908305B
CN103908305B CN201410003337.8A CN201410003337A CN103908305B CN 103908305 B CN103908305 B CN 103908305B CN 201410003337 A CN201410003337 A CN 201410003337A CN 103908305 B CN103908305 B CN 103908305B
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China
Prior art keywords
disposal appliance
platform
leading section
section
main body
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CN201410003337.8A
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CN103908305A (en
Inventor
森本康彦
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Fujifilm Corp
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Fujifilm Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/00071Insertion part of the endoscope body
    • A61B1/0008Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00098Deflecting means for inserted tools

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Present invention offer is a kind of can be made to flow to the ultrasonic endoscope that ground wire is suitably become separated in flight to the electric leakage for erecting platform leakage in the use of high-frequency treatment apparatus etc..Configured in the leading section (34) of ultrasonic endoscope (1) erect platform (60) and its drive mechanism is integratedly assembled into by the part of electric conductivity and erects platform component (72), and the resettlement section collecting holding formed by the leading section main body (36) by insulating properties.The chimeric square ring (front end ring) (250) foremost for having a bending section (32) of the base end side peripheral part of main body (36) in leading section, the front end ring (250) and erects platform component (72) (module body 80) by being embedded into screw (270) connection of the electric conductivity in via hole (220).Square ring is connected with ground wire (GND), is made to leak into the leakage current for erecting platform (60) from disposal appliance and is released via the square ring of bending section (32) to ground wire.

Description

Ultrasonic endoscope
Technical field
The present invention relates to ultrasonic endoscope, more particularly to possess and make the disposal appliance leading-out portion from the leading section of insertion section The disposal appliance that derived disposal appliance is erected erects the ultrasonic endoscope of platform.
Background technology
In the past, in ultrasonic endoscope, it is known to following structure:Have in the leading section for the insertion section inserted into body cavity It is standby to erect platform, make to dispose derived from the disposal appliance leading-out portion of leading section through disposal appliance insert passage by erecting platform Apparatus is erected, and it is (literary for example, referring to patent to change the export direction for erecting the erecting angle of platform and can adjusting disposal appliance Offer 1).
According to the endoscope of patent document 1, provided with platform is erected on disposal appliance leading-out portion, erected at this on platform via rotation Rotating shaft and link and erect bar.Link operation metal wire on bar is erected, the operation metal wire with the base end part of insertion section by connecting If operating portion operation and by push-and-pull.
Therefore, when the operation by operating portion and push-and-pull operation metal wire when, erect bar rotation, when erect bar rotate when, Platform is erected to rotate via rotary shaft and carry out erecting action.
【Citation】
【Patent document】
【Patent document 1】Japanese Unexamined Patent Publication 2005-287593 publications
【The summary of invention】
【The invention problem to be solved】
In recent years, having used the disposal of ultrasonic endoscope increases, and uses high-frequency treatment apparatus as disposal appliance Situation also increases.
On the other hand, in patent document 1 possesses erect the ultrasonic endoscope of platform like that, it is used as what is configured in leading section The driving part that platform erects platform with this is erected, mostly the conductive metal material high and easy to manufacture using intensity is passed through The part of (stainless steel etc.) shaping.
In addition, in ultrasonic endoscope, the driving voltage of the ultrasonic transducer configured in leading section turns into high pressure.Cause This, leading section main body insulating materials as plastics that the component parts of preferred pair leading section house holding is formed, and is come Realize the sufficient insulation of ultrasonic transducer or the distribution extended from ultrasonic transducer.
In such ultrasonic endoscope, in the case where having used high-frequency treatment apparatus, it may be used from high-frequency treatment Have to the leakage current for erecting platform leakage high frequency.Now, leak into and erect the leakage current of platform and erecting platform and the drive of platform is erected to this Dynamic component do not flowed in the leading section main body of the insulating properties of collecting holding.
Peeped accordingly, it is considered to which platform will be erected by the operation metal wire of the electric conductivity of the driving part link with erecting platform with interior Ground wire (GND) connection of the operating portion of mirror, make to leak into the leakage current for erecting platform by driving part and operation metal wire to Ground wire is become separated in flight.
However, because operation metal wire is thin, therefore conducting resistance is high, electric current is difficult to flow.Thus, even if making operation metal Being electrically connected to ground for line and operating portion, may can not also make the electric leakage from disposal appliance flow to ground wire and suitably flow.
On the other hand, when making operation metal wire thicker to make electric current easily flow, there is the particle size for causing insertion section So the problem of.
The content of the invention
The present invention in view of such situation and make, it is a kind of in the use of high-frequency treatment apparatus etc. its object is to provide It can make to flow to the ultrasonic endoscope that ground wire is suitably become separated in flight to the electric leakage for erecting platform leakage.
【Solution】
To achieve these goals, the ultrasonic endoscope of a form of the invention possesses:In inserting for being inserted into body cavity Enter the leading section main body of the insulating properties of the front-end configuration in portion;By the ultrasonic transducer of leading section body abutment;That can erect Mode be arranged at the disposal appliance of leading section main body and erect platform;Link with the base end side of leading section main body and electrically grounded conduction The tubular element of property;And disposal appliance is erected to the connecting elements of the electric conductivity of platform and tubular element electrical connection.
According to the form of the present invention, disposal appliance erects platform and is grounded via connecting elements and tubular element, therefore, i.e., Make to erect to disposal appliance in the use of high-frequency treatment apparatus etc. in the case that platform have leaked leakage current, the leakage current also can be to The tubular element linked with the base end side of leading section flows, and is flowed from tubular element to ground wire (GND).Therefore, it is possible to make to come The disposal appliance that leaks into of self-disposal apparatus erects the electric leakage of platform and flows to ground wire and suitably become separated in flight.
In the disposal appliance endoscope apparatus of another form of the present invention, the portion of being preferably inserted into has and leading section main body The bending section being made up of multiple square rings (section ring) that base end side links, and tubular element is the angle of the front in multiple square rings Ring.
It is preferred that the disposal appliance endoscope apparatus of the another form of the present invention is also equipped with drive mechanism portion, the drive mechanism portion The disposal appliance is erected into platform supporting for that can rotate, and houses the driving for maintaining and making the disposal appliance erect platform rotation Portion, the drive mechanism portion erects platform with the disposal appliance and conducted, and by the leading section main body keep, tubular element with The base end side peripheral part connection of leading section main body, connecting elements is with through the Kong Eryu drive mechanisms formed in the main body of leading section The mode of portion and tubular element contact is configured.
In the disposal appliance endoscope apparatus of another form of the present invention, form can be formed as, i.e. driving machine Structure portion possesses:The rotary shaft that disposal appliance is erected into platform supporting to rotate;By the driving force transmitted by operation metal wire, And erect the bar component that platform can integratedly be rotated relative to rotary shaft with disposal appliance;And e axle supporting will be rotated can to turn It is dynamic, and the main part housed to bar component.
In the disposal appliance endoscope apparatus of another form of the present invention, preferably connecting elements is contacted with main part.
In the disposal appliance endoscope apparatus of the another form of the present invention, form can be formed as, i.e. main part With disposal appliance is erected into disposal appliance inserting hole derived from the space of platform to disposal appliance is configured with, the disposal appliance is passed through The disposal appliance configured in the inside of insertion section inserts road.
【Invention effect】
According to the present invention, the leakage current that platform leakage is erected to disposal appliance can be made in the use of high-frequency treatment apparatus etc. Suitably become separated in flight to ground wire.
Brief description of the drawings
Fig. 1 is loaded into the overall diagram that disposal appliance of the invention erects the ultrasonic endoscope of device.
Fig. 2 is the stereogram of the outward appearance for the leading section for representing insertion section.
Fig. 3 is the plan (top view) of the outward appearance for the leading section for representing insertion section.
Fig. 4 is the stereogram for representing to erect platform component.
Fig. 5 is the 5-5 regarding sectional views in Fig. 3.
Fig. 6 is the figure for erecting bar of indication rod resettlement section.
Fig. 7 is the stereogram for representing to erect platform component and the linking part of bending section.
Fig. 8 is Fig. 7 8-8 regarding sectional views.
【Symbol description】
1 ... ultrasonic endoscope (endoscope), 10 ... operating portions, 12 ... insertion sections, 14 ... general flexible cords, 16 ... bent angles Button, 18 ... erect action bars, 20 ... aspirated and water sending buttons, 22 ... attraction buttons, 24 ... disposal appliance introducing ports, 30 ... flexibilities Portion, 32 ... bending sections, 34 ... leading sections, 36 ... leading section main bodys, 40 ... base portions, 42 ... extensions, 44 ... observation windows, 46R, 46L ... illuminating windows, 48 ... aspirated and water sending nozzles, 50 ... ultrasonic transducers (ultrasonic oscillator), the export of 58 ... disposal appliance Portion, 60 ... erect platform, and 62 ... disposal appliance erect space, 64 ... disposal appliance inserting holes, 66 ... disposal appliance export mouths, 70 ... Disposal appliance erects device, and 72 ... erect platform component, 74 ... controlling cables, and 76 ... erect platform operating portion, 80 ... module bodies, 82 ... abutment portions, 84 ... bar resettlement sections, 86 ... disposal appliance insertion portions, 90 ... rotary shafts, 92 ... fillers (O-ring), 96 ... stand Rise bar, 110 ... coupling members, 120 ... operation metal wires, 180 ... cylindrical members, 200 ... linking parts, 202 ... middle footpath portions, 204 ... minor diameter parts, 220 ... via holes, 220a ... through holes, 220b ... screwed holes, 250 ... front end rings, 260 ... exodermises, 270 ... screws.
Embodiment
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.
Fig. 1 is the overall diagram for being applicable the ultrasonic endoscope 1 of the present invention.
Ultrasonic endoscope 1 (hreinafter referred to as endoscope 1) in the figure includes:The people for implementing operation holds and carried out The operating portion 10 of various operations;The insertion section 12 inserted into the body cavity of patient;Constitute the processing (not shown) of endoscopic system Device;And the general flexible cord 14 for the system constituent apparatus such as endoscope 1 and light supply apparatus to be connected.
The various control members operated by the people for implementing operation are provided with operating portion 10, for example, provided with angle knob (angle adjustment knob) 16, erect action bars 18, aspirated and water sending button 20, attract button 22 etc..
In addition, on operating portion 10 be provided with disposal appliance introducing port 24, the disposal appliance introducing port 24 make disposal appliance to Through disposal appliance insert road (the disposal appliance insert passage) insertion in insertion section 12.
Extend from the front end of operating portion 10 insertion section 12.The generally thin footpath of insertion section 12 and be formed as strip.
In addition, insertion section 12 is sequentially main by flexible part 30, bending section 32, the structure of leading section 34 from base end side towards front Into.
Flexible part 30 occupies the major part since base end side of insertion section 12, with scratching for being bent to arbitrary direction Property.When insertion section 12 is inserted into body cavity, flexible part 30 is bent along towards endoceliac insertion path.
The rotation process for the angle knob 16 that bending section 32 passes through operating portion 10 and vertically and left and right directions carry out it is curved Song action, by making bending section 32 carry out flexure operation, thus enables that leading section 34 towards desired direction.
Leading section 34 possesses as its detailed construction is aftermentioned:Shooting for shooting endoceliac observation image Portion and Lighting Division;Obtain the ultrasonic transducer of ultrasonography;The disposal appliance inserted from disposal appliance introducing port 24 is led The disposal appliance leading-out portion gone out;And the disposal appliance that disposal appliance is erected derived from disposal appliance leading-out portion is erected platform Deng.
General flexible cord 14 is interior internally to be surrounded by electric wire, photoconductive tube, fluid hose.At the end (not shown) of the general flexible cord 14 Portion possesses connector, by making the connector and processing unit, light supply apparatus etc. constitute the defined system structure of endoscopic system Into device connection, the required electric power of the utilization of endoscope 1, control signal, photograph are thus supplied from system constituent apparatus to endoscope 1 Mingguang City, liquefied gas etc., also, obtained by the data of the observation image obtained by image pickup part or by ultrasonic transducer The data of ultrasonography transmitted from endoscope 1 to system constituent apparatus.It should be noted that being sent to system constituent apparatus Observation image or endoscopic images show on a monitor so that implementing people etc. of operation can be observed.
Then, the structure to the leading section 34 of insertion section 12 is illustrated.Fig. 2, Fig. 3 are the outward appearances for representing leading section 34 Stereogram and plan (top view).
Leading section 34, which has, forms its outer wall, the leading section main body (framework) 36 in internal next door, by leading section master Each component parts for keeping being configured at leading section 34 is housed in the resettlement section (reception room) that body 36 is marked off.
Although details omit, leading section main body 36 can using one part as separation block and with detachable side Formula is dismantled, and each component parts can be assembled in into defined resettlement section in the state of after dismantling separation block.By respectively Component parts is assembled in after resettlement section, separation block is installed on into leading section main body 36, thus by each component parts by resettlement section House and keep and be fixed on leading section 34.
Leading section main body 36 is as the insulating materials with insulating properties, such as methacrylic resin or makrolon The resin material of plastics etc. is formed.
As shown in Figure 2 and Figure 3, leading section 34 has base portion 40 and from the extended extension 42 in side forward of base portion 40.
The camber that will send the multiple ultrasonic oscillator assortments for receiving ultrasonic wave into convex-shaped is configured with extension 42 Ultrasonic transducer 50.By the ultrasonic transducer 50, obtain generating the data of the ultrasonography of in-vivo tissue.
Observation window 44, illuminating window 46R, 46L, aspirated and water sending nozzle 48, disposal appliance leading-out portion 58 are provided with base portion 40.
Observation window 44 is arranged on towards on the left side inclined-plane 41L of front oblique upper in fig. 2, as the observation window 44 Rear side base portion 40 inside, the imaging optical system and solid-state imager of image pickup part will be constituted as integratedly assembling Camera system unit and housed.Thus, the light of the subject from the field range as image pickup part is by from Window 44 is taken into, and forms subject picture by imaging optical system, and shot as observation image by solid-state imager.
Illuminating window 46R, 46L are separately positioned on right side inclined-plane 41R and above-mentioned left side towards front oblique upper in fig. 2 On inclined-plane 41L, the light for constituting Lighting Division is contained in the inside of the base portion 40 of the rear side as above-mentioned illuminating window 46R, 46L Exit portion.The illumination light transmitted from the light supply apparatus being connected with general flexible cord 14 by photoconductive tube is projected from light exit portion, should Illumination light is irradiated via illuminating window 46R, 46L to the subject of the field range of image pickup part.
Aspirated and water sending nozzle 48 is arranged on the inclined-plane 41L of left side in fig. 2, is pressed by the aspirated and water sending of operating portion 10 The operation of button 20, from aspirated and water sending nozzle 48 towards the cleaning of the injection water of observation window 44 or air to carry out observation window 44 etc..
Disposal appliance leading-out portion 58 is arranged on the central portion of base portion 40, is inserted from the disposal appliance introducing port 24 of operating portion 10 Disposal appliance exported from the disposal appliance leading-out portion 58.
Concave disposal appliance is formed with disposal appliance leading-out portion 58 and erects space 62, apparatus is put in this place and erects sky Between 62 base end side be provided with disposal appliance inserting hole 64.
Disposal appliance inserting hole 64 through disposal appliance insert road (disposal appliance insert passage) in insertion section 12 with connecting Logical, the disposal appliance inserted from the disposal appliance introducing port 24 of operating portion 10 is stood from the disposal appliance inserting hole 64 to disposal appliance Space 62 is played to export.
The position in the front (front) as disposal appliance inserting hole 64 in space 62 is erected in disposal appliance provided with vertical Play platform (disposal appliance erects platform) 60.
Erect platform 60 to be formed by stainless steel and other metal materials, in fig. 2, there is the cardinal extremity from leading section 34 in upper surface side The guide surface 60a for the concave shape that side is bent upward towards front.From disposal appliance derived from disposal appliance inserting hole 64 Along guide surface 60a, the axis direction (lengthwise direction of insertion section 12) relative to leading section 34 be bent upwards and from into The upside outward opening portion export in space 62 is erected for the disposal appliance of disposal appliance export mouth 66.
Carry out erecting action by the operation for erecting action bars 18 of operating portion 10 in addition, erecting platform 60, by making to stand Platform 60 erect acting to adjust erects angle from what lodging state was started at, so as to adjust from disposal appliance leading-out portion The export direction (export angle) of disposal appliance derived from 58.
It should be noted that disposal appliance insert road also links with attraction channel, pass through the attraction button to operating portion 10 22 are operated, and the attraction of body fluid etc. can also be carried out from disposal appliance leading-out portion 58.
Then, illustrate at leading section 34 to erect platform 60 supported and drive erect platform component 72.
Fig. 4 is to represent to erect the overall stereogram of platform component 72, and Fig. 5 is the 5-5 regarding sectional views in Fig. 3.
Platform component 72 is erected integratedly to assemble as shown in Figure 4.Platform component 72 is erected as shown in Figure 5, by forming leading section 34 Outer wall, the defined resettlement section of the leading section main body 36 in internal next door houses and keeps and be fixed in leading section 34.
In addition, erecting the metal material as stainless steel of the assembling parts in addition to containment member described later of platform component 72 Material is formed, overall to be conducted.
As shown in figure 4, erect platform component 72 by erecting platform 60, platform 60 will be erected support module body 80 for that can rotate (drive mechanism portion) is constituted.
Module body 80 includes:The abutment portion 82 configured in the downside for erecting platform 60;In abutment portion 82 and erect platform 60 The bar resettlement section 84 of sidepiece configuration;And be extended and configure from the rear end side (base end side) of abutment portion 82 and bar resettlement section 84 To the disposal appliance insertion portion 86 for the rear side (base end side) for erecting platform 60.
Abutment portion 82 is overall, the outer wall section of bar resettlement section 84 and disposal appliance insertion portion 86 are overall by metal component It is integrally formed.
As shown in Fig. 2, Fig. 3 (and Fig. 5), (leading section main body 36 is housed into leading section 34 this is erected into platform component 72 Defined resettlement section) in the state of, as shown in Figure 4, Figure 5, pass through the wall of the upside of the abutment portion 82 of module body 80 82a, the wall 84a for erecting the side of platform 60 of bar resettlement section 84, the wall 86a (ginsengs for erecting the side of platform 60 of disposal appliance insertion portion 86 According to Fig. 4) and leading section main body 36 wall part 36a wall 36b (reference picture 5), formed and the disposal of platform 60 erected to being configured with Apparatus erects the wall that space 62 is divided.
It should be noted that in Figure 5, symbol 38 represents to constitute the imaging optical system of image pickup part, in leading section 34 The resettlement section for housing the resettlement section for erecting platform component 72 and collecting camera system component is isolated by wall part 36a, and wherein this is taken the photograph As system component is by the way that the component parts of image pickup part is integratedly assembled.
As shown in Figure 4, Figure 5, it is formed with the abutment portion 82 of module body 80:With the sidepiece provided with bar resettlement section 84 On the sidepiece of opposite side along leading section 34 axis direction recess 82b;And in the axis direction with leading section 34 It is columned that spatial portion 84b (reference picture 5) on the direction being substantially orthogonal from recess 82b to the inside of bar resettlement section 84 is connected Axis hole 82c.
The support 60b that the embedded oriented downside for erecting platform 60 is provided projectingly in recess 82b, is passed through in axis hole 82c The rotary shaft 90 that can be rotated.Also, the leading section 90a of rotary shaft 90 with formed on the support 60b for erecting platform 60 it is embedding Hole 60c is closed to be fitted together to.
Thus, erect platform 60 and rotary shaft 90 links, and erect platform 60 via orthogonal with the axis direction of leading section 34 The rotary shaft 90 in direction and support to rotate freely by abutment portion 82.Also, erect the rotation of platform 60 and rotary shaft 90 interlock and Rotated centered on rotary shaft 90 and (erect action).
Pass through it should be noted that erecting the support 60b of the platform 60 embedded hole 60c and leading section 90a of rotary shaft 90 Keyway or screw threads for fastening etc. and be fixed.
In addition, the peripheral part in rotary shaft 90 is formed with circumferential groove 90b (reference picture 5), the embedded filler in groove 90b (O-ring) 92 is used as containment member.Thus, between the axis hole 82c inner peripheral surface and the outer peripheral face of rotary shaft 90 of abutment portion 82 Be pressed into filler 92, come prevent gap of the fluid between axis hole 82c inner peripheral surface and the outer peripheral face of rotary shaft 90 and from disposal Apparatus erects the situation that space 62 is flowed into the spatial portion 84b of bar resettlement section 84.
The bar resettlement section 84 of module body 80 internally has spatial portion 84b as described above, as shown in Figure 5, Figure 6, Housed in spatial portion 84b and erect bar 96 (bar component) (driving part).It should be noted that Fig. 6 is from bar resettlement section 84 It is configured with the figure that the opposite side surface side for the wall 84a sides for erecting platform 60 will be had an X-rayed and be shown in spatial portion 84b.
Erect bar 96 and be formed as long plate shape, the end side (base end part side) of a side of its length direction and the rotation of abutment portion 82 The base end part of rotating shaft 90 links.Thus, the rotation for erecting bar 96 and rotary shaft 90 is interlocked and turned centered on rotary shaft 90 It is dynamic.
Therefore, rotated by erecting bar 96, thus rotary shaft 90 rotates and makes to erect platform 60 and carry out erecting action.
It should be noted that rotary shaft 90 and the component that bar 96 can be formed as one is erected, can also be by the structure of split Part integratedly links.
In addition, wall member 84c (reference picture 5) can be dismantled from bar resettlement section 84, wherein, wall member 84c is from erecting When bar 96 is observed, erect the wall 84a sides of platform 60 relative to being configured with for bar resettlement section 84 and form opposite wall, pass through shape As the state after dismounting wall member 84c, so as to house rotary shaft 90 into bar resettlement section 84, erect bar 96 etc..
As shown in figure 5, the groove 96a in the direction orthogonal with rotary shaft 90 is formed with the leading section for erecting bar 96, such as Fig. 6 institutes Show, be formed with the groove 96a positions intersected from the preceding surface of bar 96 is erected to the through hole of the back side cylindrical ground insertion 96b。
The columned cylindrical member 180 for the roughly the same diameter that can be rotated is embedded with through hole 96b, in the circle The operation metal wire 120 of controlling cable 74 is installed on post component 180.
Thus, when operating metal wire 120 to carry out advance and retreat mobile (push pull maneuver), bar 96 is erected centered on rotary shaft 90 (swing) is rotated, platform 60 is erected and is interlocked with it, carries out erecting action via rotary shaft 90.For example, in figure 6, erecting Platform 60 can carry out erecting action in the range of from lodging state shown in solid to the raised state shown in double dot dash line.
Controlling cable 74 is passed through in insertion section 12 and configured from the operating portion 10 of endoscope 1, and front is as Fig. 4, Fig. 6 It is connected with the side of sidewall portion 84d of bar resettlement section 84.
Controlling cable 74 is by that can slide in tubulose and in the tube chamber with flexible coiled casing (guiding tube) Mode is constituted through configuration operation metal wire 120.
Operation metal wire 120 for example passes through the twisted twisted metal wires of the raw material line that will be made up of multiple metal fines Formed.Coiled casing is for example formed by covering heat-shrinkable flexible pipe on the contiguity coil of tubulose.
At the side of sidewall portion 84d of controlling cable 74 Yu bar resettlement section 84 connecting portion, bar is fixed in the end of coiled casing The side of sidewall portion 84d of resettlement section 84.
On the other hand, operation metal wire 120 passes through the inserting hole (not shown) formed on side of sidewall portion 84d and housed to bar The spatial portion 84b insertions in portion 84, and cylindrical member 180 is fixed on as described above.
The base end side of controlling cable 74 connects in the inside of operating portion 10 via Poewr transmission mechanism with erecting action bars 18 Connect, operation metal wire 120 and erect action bars 18 swinging operation (slide) interlock and in the axial direction (insertion section 12 Lengthwise direction) carry out moving back and forth.
Thus, when implement operation people to operating portion 10 erect action bars 18 carry out swinging operation (slide) when, In the presence of the operating physical force, operation metal wire 120 carries out advance and retreat movement, so as to erect bar 96 as described above with rotary shaft 90 Centered on rotated (swing) make to erect platform 60 carry out erect action.
As shown in figure 4, the disposal appliance insertion portion 86 in module body 80 is formed with the disposal appliance of cylindrical insertion Inserting hole 64.
The front that the coupling member 110 of cylindrical shape is embedded in and fixed in apparatus inserting hole 64 is put in this place.Linking structure The rear end side (base end side) of part 110 is outer and installs the leading section for the flexible pipe 112 for forming disposal appliance insert road.
Thus, make it is above-mentioned like that from the disposal appliance introducing port 24 of operating portion 10 be inserted through disposal appliance insert road i.e. Disposal appliance in flexible pipe 112 erects space 62 to disposal appliance via coupling member 110 and disposal appliance inserting hole 64 and exported.
Then, erected to disposal appliance the disposal appliance after space 62 is exported erected by erecting platform 60 and from disposal appliance Space 62 is erected to export to outside.
What is constituted like that above erects platform component 72 to obtain high intensity, makes the assembling parts beyond filler 92 by gold Category material is formed, and entirety is conducted.
When using high-frequency treatment apparatus as from disposal appliance derived from disposal appliance leading-out portion 58 etc., used from disposal Have to erecting in the case that platform 60 flows through leakage current, pass through leading section 34 described below and the knot of the linking part of bending section 32 Structure, come make the electric leakage flow to bending section 32 square ring (section ring) flowing, and from square ring via the metal outer pipe of flexible part 30 to The ground wire of operating portion 10 is released.
Suitably become separated in flight thereby, it is possible to make to leak into the leakage current for erecting platform 60 from disposal appliance to ground wire.
Structure to the linking part of the bending section 32 of leading section 34 is illustrated.Fig. 7 is to represent leading section 34 from base end side Stereogram, Fig. 8 is 8-8 regarding sectional views in Fig. 7.
Connect figure 7 illustrates the module body 80 for erecting platform component 72 with being kept by the leading section main body 36 of leading section 34 The controlling cable 74 and formation disposal appliance that connect insert the flexible pipe 112 on road, and they pass through the inside of bending section 32.
The linking part 200 linked with bending section 32 is formed with the base end side peripheral part of the base portion 40 of leading section 34, even It is formed with knot 200:Make the outer peripheral face of leading section main body 36 than the middle footpath portion 202 of front undergauge;And in middle footpath Minor diameter part 204 of the base end side in portion 202 than the middle undergauge of footpath portion 202.
The front end ring 250 for the bending section 32 for having endoscope 1 is fitted together in the peripheral part of the minor diameter part 204 of the linking part 200.And And, it will be screwed into what is formed on minor diameter part 204 through the screw (not shown) after the inserting hole 252 formed on front end ring 250 Screwed hole 210 (reference picture 7), minor diameter part 204 is fixed on by front end ring 250.
Here, the front end ring 250 of bending section 32 represents rotationally link the (not shown) of configuration at bending section 32 Square ring foremost in multiple circular square rings (section ring).
Due to known, therefore detailed description is omitted, but the multiple square rings linked the angle knob 16 that passes through operating portion 10 Operation, the operation metal wire that push-and-pull is installed on front end ring 250, so that overall bend vertically and horizontally.
Above-mentioned square ring is formed by metal material and mutually conducted respectively, and with the flexibility of the base end side of bending section 32 Metal outer pipe (by helically wound helix tube of the metallic coil of the banding etc.) electrical connection in portion 30.Also, the metal of flexible part 30 The ground wire (GND) of outer tube and operating portion 10, the component for becoming earthing potential are connected.
In addition, being formed with via hole 220 on minor diameter part 204 and the front end ring 250 chimeric with minor diameter part 204.
As shown in figure 8, via hole 220 includes:The through hole 220a of the truncated cone formed on front end ring 250;With passing through Through hole 220a is connected and containing from the outer peripheral face of minor diameter part 204 to leading section main body 36 erects the resettlement section of platform component 72 and passed through Logical through hole 220b;And connected with through hole 220a, 220b and erecting the (disposal appliance of module body 80 of platform component 72 The wall portion of insertion portion 86) on the screwed hole 220c that is formed (also referring to Fig. 4).
The embedded metal screw (for example, sunk screw) 270 (reference picture 7) in the via hole 220, screw 270 is (even Connection member) through front end ring 250 through hole 220a and leading section main body 36 through hole 220b and with the spiral shell of module body 80 Pit 220c is screwed togather and fixed.Now, the head of screw 270 is embedded in the through hole 220a of front end ring 250.
Thus, the screw 270 of electric conductivity is contacted with module body 80 and front end ring 250, makes module body 80 and front end ring 250 conduct via screw 270.
Peripheral part in the middle footpath portion 202 of linking part 200, covers (the reference picture of exodermis 260 of the periphery of bending section 32 8) be fitted together to and installed in the way of crossing the front end of front end ring 250 and extending, and coating by kinking or bonding agent etc. and fix Peripheral part in middle footpath portion 202.
Leading section 34 and the structure of the linking part 200 of bending section 32 more than, in making because of high-frequency treatment apparatus etc. With and flow direction of leaking electricity is erected in the case that platform 60 leaks, the leakage current is from erecting module body 80 that platform 60 conducts via upper State screw 270 and flowed to the front end ring 250 of bending section 32.
Because the square ring of front end ring 250 and its back segment is connected with the ground wire (GND) of operating portion 10 together, therefore flow to front end Leakage current in ring 250 is released to ground wire.
Therefore, even if from disposal appliance to erecting in the case that platform 60 flows through leakage current, the electric leakage can also flowed to Ground wire is become separated in flight.
In addition, the heat produced by other component parts such as image pickup part (shooting module) for being configured in leading section 34 is passed through Radiated to the square ring of bending section 32 from erecting platform component 72 and screw 270, thus also have leading section 34 is cooled down it is such Effect.
In the above embodiment, module body 80 and bending are made by the screw 270 being embedded into via hole 220 The front end ring 250 in portion 32 is turned on, but is not limited to screw 270, as long as making the component and module body 80 and front end ring of electric conductivity 250 contacts.
For example, via hole 220 can not be fixed on by screw component of electric conductivity with reference to as by screw 270, and The pin of electric conductivity is pressed into via hole 220 and fixed, through hole can not also be formed on front end ring 250 or module body 80 220a or screwed hole 220c, and through hole 220b is formed only in leading section main body 36, and make to be embedded into through hole 220b The component of electric conductivity only contacted with the inner peripheral surface of front end ring 250 and the outer surface of module body 80.
In addition, the exodermis 260 of bending section 32 is for example in the presence of by the periphery of netted pipe (braiding layer) and the netted pipe of covering The situation that the crust of such as fluorubber is constituted, the netted pipe covers the periphery of square ring and is made up of the braiding of metal wire rod. In this case, module body 80 and front end ring 250 can not also be connected by the component of electric conductivity, and by the He of module body 80 The netted pipe of exodermis 260 is connected by the component of electric conductivity.
For example, can be mode as follows:At the middle footpath portion 202 of the linking part 200 of leading section 34 formed from Outer peripheral face to the insertion of module body 80 via hole, and by the Component Embedding of the wire-conducting performance via hole by module body 80 and net Shape pipe is electrically connected.
That is, in the outer tube of bending section 32 is the inscape of square ring or exodermis 260, as long as either one is metal Outer tube (tubular element) and module body 80 are connected and conducted by the component of electric conductivity.
In addition, as long as the component of electric conductivity is conducted relative to the position for erecting the contact of platform component 72 with erecting platform 60 Position, can be arbitrary position.
In addition, in the above-described embodiment, to the present invention is entered suitable for the embodiment of the situation of ultrasonic endoscope Go explanation, but the present invention will erect platform component by the leading section main body of insulating properties in above-mentioned embodiment and house what is kept like that It can be also applicable in endoscope.

Claims (7)

1. a kind of ultrasonic endoscope, it possesses:
In the leading section main body of the insulating properties of the front-end configuration for the insertion section inserted into body cavity;
By the ultrasonic transducer of the leading section body abutment;
The disposal appliance that the leading section main body is arranged in the way of it can erect erects platform;
The tubular element of the electric conductivity of base end side link and electrical ground with the leading section main body;And
The disposal appliance is erected to the connecting elements of the electric conductivity of platform and tubular element electrical connection.
2. ultrasonic endoscope according to claim 1, wherein,
The insertion section has the bending section being made up of multiple section rings that the base end side with the leading section main body links,
The tubular element is the multiple section ring for saving the front in ring.
3. ultrasonic endoscope according to claim 1 or 2, wherein,
The ultrasonic endoscope is also equipped with drive mechanism portion, and it is energy that the disposal appliance is erected platform supporting by the drive mechanism portion It is enough to rotate, and collecting maintains the drive division for making the disposal appliance erect platform rotation,
The drive mechanism portion erects platform with the disposal appliance and conducted, and is kept by the leading section main body,
The tubular element is connected with the base end side peripheral part of the leading section main body,
The connecting elements is with through drive mechanism portion and the tubulose described in the Kong Eryu formed in the leading section main body The mode of component contact is configured.
4. ultrasonic endoscope according to claim 3, wherein,
The drive mechanism portion possesses:
The rotary shaft that the disposal appliance is erected into platform supporting to rotate;
By the driving force transmitted by operation metal wire, and platform is erected integratedly relative to the rotary shaft with the disposal appliance The bar component that can be rotated;And
By the rotation e axle supporting can to rotate, and to main part that the bar component is housed.
5. ultrasonic endoscope according to claim 4, wherein,
The connecting elements is contacted with the main part.
6. ultrasonic endoscope according to claim 4, wherein,
The main part, which has, inserts disposal appliance to being configured with the disposal appliance and erect disposal appliance derived from the space of platform Through hole, the disposal appliance that the disposal appliance passes through the inside in the insertion section to configure inserts road.
7. ultrasonic endoscope according to claim 5, wherein,
The main part, which has, inserts disposal appliance to being configured with the disposal appliance and erect disposal appliance derived from the space of platform Through hole, the disposal appliance that the disposal appliance passes through the inside in the insertion section to configure inserts road.
CN201410003337.8A 2013-01-08 2014-01-03 Ultrasonic endoscope Active CN103908305B (en)

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