CN1550203A - Airbag type endoscope - Google Patents

Airbag type endoscope Download PDF

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Publication number
CN1550203A
CN1550203A CNA2004100431244A CN200410043124A CN1550203A CN 1550203 A CN1550203 A CN 1550203A CN A2004100431244 A CNA2004100431244 A CN A2004100431244A CN 200410043124 A CN200410043124 A CN 200410043124A CN 1550203 A CN1550203 A CN 1550203A
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China
Prior art keywords
air
air bag
pipe
pressure
endoscope
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Granted
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CNA2004100431244A
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Chinese (zh)
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CN100522043C (en
Inventor
关口正
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Fuji Film Co
SRJ Corp
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Fuji Photo Optical Co Ltd
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Priority claimed from JP2003132501A external-priority patent/JP3787723B2/en
Priority claimed from JP2003135758A external-priority patent/JP3922211B2/en
Application filed by Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Publication of CN1550203A publication Critical patent/CN1550203A/en
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Publication of CN100522043C publication Critical patent/CN100522043C/en
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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
    • A61B1/012Instruments 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 characterised by internal passages or accessories therefor
    • A61B1/015Control of fluid supply or evacuation

Abstract

A warning unit outputs an alert when a first abnormality detector and a second abnormality detector determine detachment or loosening of a tube (110) that can cause abnormal pressure in each balloon (20,54).

Description

Airbag type endoscope
Technical field
The present invention relates to a kind of airbag type endoscope, relate in particular to the endoscope that is located at the endoscope insertion part front end with air bag that can free harmomegathus.In addition, the invention still further relates to the air-bag control device of the double-balloon endoscope of the safety in the time of can realizing improving the use double-balloon endoscope.
Background technology
As the device that replaces little intestinal endoscopy in the past, double-balloon endoscope is known by everybody.This double-balloon endoscope, by be provided with at endoscope distal end air bag and can be to the endoscope of this air bag air supply sucking-off air with as the sleeve pipe of the insertion section that can insert endoscope, be provided with air bag and can (for example constitute at the front end of pipe to the sleeve pipe of this air bag air supply sucking-off air, Japanese kokai publication sho 51-11689 communique (page 2, the 1st figure)).
On each air bag of double-balloon endoscope, connecting air-bag control device, carrying out the sucking-off of air air supply to each air bag respectively, so that each airbag inflation and contraction.
When double-balloon endoscope is inserted small intestinal,, make telescopic air bag contraction and sleeve pipe is advanced to front end air bag place along endoscope insertion part at the airbag inflation that makes endoscope and after being fixed on the intestinal tube.And then make telescopic airbag inflation, and sleeve pipe is fixed on the intestinal tube, the air bag of endoscope is shunk and endoscope insertion part is inserted to the deep.Carry out and to advance while moving to the deep by the fixed fixing point of air bag while repeating above operation.When endoscope insertion part has formed complicated flexagon, under the state of the airbag inflation that makes two sides, with endoscope sleeve pipe is spurred at leisure.By this operation, can not extract endoscope distal end and flexagon is oversimplified, shorten the intestinal tube that is inserted into, so that it can be folded on the sleeve pipe.Repeat above-mentioned sequence of operations, can make the flexagon that intestinal tube is folded in the intestinal tube on the sleeve pipe oversimplify and insert to the small intestinal deep.
On the other hand, at the air supply plant that is used in the past to air fed endoscope of the endoscope with air hose, have the compressor of detection in install to connection tube that endoscope is connected confined space pressure, make this detected pressure carry out the pressure adjustment with becoming setting pressure and when the detected pressure anomaly, can remove the device (TOHKEMY 2000-217779 communique) of abnormality.
The air bag of aforesaid endoscope or telescopic air bag are owing to make its expansion and as fulcrum, so damage because of applying abnormal pressure sometimes.In case air bag damages, the air in attracting air bag and when air bag is shunk then can be attracted to body fluid, the danger that this body fluid flows backwards and frozen plug arranged or electromagnetic valve is produced baneful influence to suction pump.
In addition, has endoscope as the described air hose of TOHKEMY 2000-217779 communique, be the device of in the body cavity of stomach etc., discharging the air of all discharge pressures in order to check the affected part state, Yi Bian can not be as the insertion of alternately expanding mutually of double-balloon endoscope ground.
On the other hand, be inserted on one side under the situation of the double-balloon endoscope in the deep of small intestinal in mutual alternately expansion on one side, when each balloon rupture, or come off or during bad connection when the pipe that is connected with airbag type endoscope and telescopic air bag air taking port, pressure with air bag does not reach the problem that regulation applies pressure pressure (being fixed in the needed pressure pressure that applies of intestinal wall), in addition, also has the too high problem of damaging intestinal tube of gasbag pressure that is caused because of the action of the control system of the vermicular movement of small intestinal or air-bag control device is bad etc.
In addition, when double-balloon endoscope is inserted into small intestinal, stomach or large intestine, particularly large intestine in also making airbag inflation sometimes and inserting on the way, because its bending, so the situation of not using air bag then can not insert is more.Utilize air bag to the solid periodic setting pressure of intestinal wall, though be set to the certain pressure that is suitable for people's intestinal tube, when being the bigger large intestine of lumen diameter, though then there is the size of air bag to reach the problem that tube chamber pressure can not rise to setting pressure.
And, air being supplied with attraction, the possibility with each pipe wrong is arranged with pipe, when being connected with airbag type endoscope and telescopic each air bag air taking port respectively.
The present invention, in view of such situation, its purpose is to provide a kind of body fluid that can stop when balloon rupture to supply with the airbag type endoscope that suction device flows backwards to air, and the air-bag control device of the safety the during use that can realize improving double-balloon endoscope, double-balloon endoscope simultaneously easy to use.
Summary of the invention
In order to achieve the above object, the airbag type endoscope that the present invention's 1 provides, be provided with air bag at the endoscope insertion part front end, and air is supplied with withdrawing device, be connected with this air bag and supply with and deflate and make air bag harmomegathus by air flow circuit by supply with withdrawing device by this air, it is characterized in that: the part midway at described air flow circuit is connected with the liquid collecting jar.
In order to achieve the above object, the double-balloon endoscope that the present invention's 2 provides, supply with withdrawing device by be provided with the 1st air bag and air at the endoscope insertion part front end, be connected with the 1st air bag by air flow circuit, make the airbag type endoscope of the 1st air bag harmomegathus by supplying with the withdrawing device supply by this air and deflating, with be the sleeve pipe that can insert described endoscope insertion part, be provided with the 2nd air bag and air supply withdrawing device at this sleeve pipe front end, be connected with the 2nd air bag and supply with and deflate the sleeve pipe of the 2nd air bag harmomegathus is constituted by air flow circuit by supply with withdrawing device by this air, it is characterized in that:, be connected with the liquid collecting jar respectively in the part midway of the described air flow circuit of described airbag type endoscope and the part midway of described telescopic described air flow circuit.
According to the present invention 1 and 2, when by the balloon rupture of endoscope's side and/or sleeve pipe side when air bag attracts body fluid be connected in air flow circuit midway in the liquid collecting jar of part because this body fluid is left on, flow backwards so can stop body fluid to supply with withdrawing device to air.
In addition according to the present invention 3, because when the time from air supply withdrawing device, by the 1st air flow circuit attraction air, the 1st check-valves that is located on the 1st air flow circuit is opened, and be located at the 2nd closure of check ring on the 3rd air flow circuit, so through liquid collecting jar and the 1st air flow circuit, air is extracted out from the 2nd air flow circuit.At this moment, at balloon rupture the time, the body fluid that is attracted is left in the liquid collecting jar.
On the other hand, because when supplying with withdrawing device to the 1st air flow circuit air supply from air, be located at the 1st closure of check ring on the 1st air flow circuit, the 2nd check-valves that is located on the 3rd air flow circuit is opened, thus can be from the 1st air flow circuit through the 3rd air flow circuit and the 2nd air flow circuit to the air bag air supply.At this moment, even body fluid is stayed in the liquid collecting jar, air also can be walked around the liquid collecting jar and flow to the 2nd air flow circuit, so the liquid collecting jar is not by air pressurized.Therefore, can stop the body fluid that lodges in the liquid collecting jar to flow backwards to endoscope's side and/or sleeve pipe side.
In order to achieve the above object, the present invention's 4 is air-bag control devices of a kind of double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with the airbag type endoscope deflate and be the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope, it is characterized in that, have: the 1st pipe and the 2nd pipe that is connected with described airbag type endoscope and telescopic air bag air taking port respectively, with by the described the 1st, the 2nd pipe is respectively to the described the 1st, the 2nd air bag carries out air and supplies with the pump machanism of extracting out, with can detect the described the 1st, the 2nd balloon rupture, pressure anomaly and the described the 1st, the 2nd pipe the 1st unusual abnormality detection mechanism and the 2nd abnormality detection mechanism and when detect the unusual abnormal alarm mechanism of report when unusual by the described the 1st and the 2nd abnormality detection mechanism such as come off.
That is, when making each air bag or expansion or shrinking, come off etc. unusually in case detect each balloon rupture, pressure anomaly and pipe, then report occurs unusually, can take the measure of avoiding dangerous with this.Unusual warning, for example can send buzzer etc. alarm sound, light alarm lamp, alarm indicator etc.In addition, also can light alarm lamp or alarm indicator being used to observe on the monitor of capsule formula endoscopic images.
The air-bag control device of 4 described double-balloon endoscopes according to the present invention, the present invention's 5, it is characterized in that: also have: respectively described the 1st air bag and the 2nd air bag are indicated the operating mechanism that pressurizes and reduce pressure, detect the 1st pressure transducer and the 2nd pressure transducer of the pressure in described the 1st pipe and the 2nd pipe respectively, and controlling organization, this controlling organization, when by described operating mechanism indication pressurization or decompression, according to the described the 1st, the detected pressure of the 2nd pressure transducer is controlled from described pump machanism to described the 1st pipe, the 2nd pipe is supplied with and is deflated, so that the described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure.
The air-bag control device of 5 described double-balloon endoscopes according to the present invention, the present invention's 6, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization, the change of the detected pressures of described the 1st, the 2nd pressure transducer, be center and so that the speed certain time is above fast with predefined moulding pressure, then detect unusual for because of the described the 1st and the 2nd balloon rupture.Because the pipe diameter from airbag type endoscope and telescopic air bag air taking port to air bag is littler than the diameter of the 1st, the 2nd pipe, so with respect to the detected pressure of above-mentioned the 1st, the 2nd pressure transducer, the pressure variation in each air bag has temporal hysteresis.Even balloon rupture during pressurization utilizes the pressure in detected the 1st, the 2nd pipe of the 1st, the 2nd pressure transducer, also to rise to predefined pressure, consequently, stop compression motion.But when balloon rupture, because the pressure in the 1st, the 2nd pipe descends and begin compression motion once more, the therefore detected pressure of above-mentioned the 1st, the 2nd pressure transducer is center and with speed fluctuation fast with predefined pressure.During particularly owing to balloon rupture, pressure continues change, so, when the pressure oscillation certain time, then be detected as and follow the unusual of balloon rupture.
The air-bag control device of 5 described double-balloon endoscopes according to the present invention, the present invention's 7, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization, when described the 1st, the 2nd pressure transducer detects than the high specification exception pressure of predefined moulding pressure, or the detection of this abnormal pressure then detects to unusual when having kept certain hour.
The air-bag control device of 5 described double-balloon endoscopes according to the present invention, the present invention's 8, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization or in the decompression, the detected pressures of described the 1st, the 2nd pressure transducer when not reaching predefined moulding pressure or negative pressure pressure behind the certain hour, then detect unusual for what come off because of described the 1st, the 2nd pipe.
The air-bag control device of 5 described double-balloon endoscopes according to the present invention, the present invention's 9, it is characterized in that: also have the shutdown switch of the abnormal alarm of removing described abnormal alarm mechanism, when the described shutdown switch of operation, described abnormal alarm mechanism stops abnormal alarm.
The air-bag control device of 9 described double-balloon endoscopes according to the present invention, the present invention's 10, it is characterized in that: described controlling organization, in by described pump machanism pressurization, detect with described abnormality detection mechanism unusual after, when the described shutdown switch of operation, make described pump machanism do the decompression action.
The air-bag control device of 5 described double-balloon endoscopes according to the present invention, the present invention's 11, it is characterized in that: also have the intervalometer mechanism that detected unusual institute's elapsed time moment carries out timing to from described abnormality detection mechanism, described abnormal alarm mechanism, after having carried out the timing of stipulated time, then stop abnormality alarm by described intervalometer mechanism.
The air-bag control device of 11 described double-balloon endoscopes according to the present invention, the present invention's 12, it is characterized in that: described controlling organization, in by the pressurization of described pump machanism, by described abnormality detection mechanism detect unusual after, after having carried out the timing of stipulated time, make described pump machanism do the decompression action by described intervalometer mechanism.That is, as the present invention 8,9 as described in, even without carrying out the unusual measure of avoiding energetically, along with the disposal that can automatically stop unusual warning the time lapse from unusual generation or reduce pressure etc.
The present invention's 13, it is a kind of air-bag control device of double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with the airbag type endoscope deflate and be the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope, it is characterized in that, have: the 1st pipe and the 2nd pipe that is connected with described airbag type endoscope and telescopic air bag air taking port respectively, with by the described the 1st, the 2nd pipe is respectively to the described the 1st, the 2nd air bag carries out air and supplies with the pump machanism of extracting out, respectively described the 1st air bag and the 2nd air bag are indicated the operating mechanism that pressurizes and reduce pressure, indication stop to pressurize the 2nd operating mechanism of decompression to described the 1st air bag and the 2nd air bag respectively, detect the 1st pressure transducer and the 2nd pressure transducer of the pressure in described the 1st pipe and the 2nd pipe respectively, and controlling organization, this controlling organization, when by described the 1st operating mechanism indication pressurization or decompression, according to the described the 1st, the detected pressure of the 2nd pressure transducer, control from described pump machanism to described the 1st pipe, the 2nd pipe is supplied with and is deflated, the so that the described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure, and by described the 2nd operating mechanism indication stopping pressurization or decompression the time, can keep current pressure and temporarily stop pressurization decompression by described pump machanism.
Promptly, except making the pressure of each air bag, indication reaches the 1st operating mechanism of predefined moulding pressure or negative pressure pressure, also be provided with and indicate the 2nd operating mechanism that stops each air bag pressurization decompression, when the 2nd operating mechanism is operated, can temporarily stop pressurization or decompression action, and keep current pressure.
The present invention's 14, it is a kind of air-bag control device of double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with the airbag type endoscope deflate and be the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope, it is characterized in that, have: be the 1st pipe and the 2nd pipe that is connected with described airbag type endoscope and telescopic air bag air taking port respectively, and mutual color, shape or the 1st pipe that varies in size and the 2nd pipe of style or the joint that is connected with the air bag air taking port, with by the described the 1st, the 2nd pipe is respectively to the described the 1st, the 2nd air bag carries out air and supplies with the pump machanism of extracting out, respectively described the 1st air bag and the 2nd air bag are indicated the operating mechanism that pressurizes and reduce pressure, detect the 1st pressure transducer and the 2nd pressure transducer of the pressure in described the 1st pipe and the 2nd pipe respectively, and controlling organization, this controlling organization, when by described operating mechanism indication pressurization or decompression, according to the described the 1st, the detected pressure of the 2nd pressure transducer, control from described pump machanism to the described the 1st, the 2nd pipe is supplied with and is deflated, so that the described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure.
By making color, the style of above-mentioned the 1st pipe and the 2nd pipe, or the shape of the joint that is connected with the air bag air taking port or vary in size, can prevent the connection error of each air bag air taking port of the joint of the 1st, the 2nd pipe and double-balloon endoscope.
As described above, according to airbag type endoscope of the present invention, when because of the balloon rupture of endoscope's side and/or sleeve pipe side, when body fluid is attracted from air bag, because this body fluid is deposited in the liquid collecting jar that partly is connected with air flow circuit midway, flow backwards so can stop body fluid to supply with withdrawing device to air.
In addition, according to the present invention, when supplying with withdrawing device from air and supply air to the 1st air flow circuit, owing to be located at the 1st closure of check ring of the 1st air flow circuit, the 2nd check-valves that is located at the 3rd air flow circuit is opened, so air is fed into the air bag through the 3rd air flow circuit and the 2nd air flow circuit from the 1st air flow circuit.At this moment, even body fluid is deposited in the liquid collecting jar, air also can be walked around the liquid collecting jar and flow to the 2nd air flow circuit, so that the liquid collecting jar does not have is pressurized, therefore, can stop the body fluid that lodges in the liquid collecting jar to flow backwards to endoscope's side and/or sleeve pipe side.
As described above, according to the present invention, since have each balloon rupture, pressure anomaly that detects double-balloon endoscope and the pipe that is connected with the air bag air taking port come off etc. unusual and report this unusually, in addition, before reaching the setting pressure of regulation, temporarily stop the pressurization of air bag or the pause function that reduces pressure and move, so can improve the double-balloon endoscope safety in utilization.In addition, can prevent when respectively pipe being connected with airbag type endoscope and telescopic each air bag air taking port, the connection error of each pipe.
Description of drawings
Fig. 1 is a structure chart of using the endoscope apparatus system of airbag type endoscope of the present invention.
Fig. 2 is the enlarged drawing of telescopic major part.
Fig. 3 is the amplification stereogram of expression endoscope insertion part front-end architecture shown in Figure 1.
Fig. 4 is the profile of insertion section front end shown in Figure 2.
Fig. 5 is the air flow circuit structural map of liquid collecting jar.
Fig. 6 is the structural map of the embodiment of other air flow circuit structures.
Fig. 7 is the endoscope apparatus system construction drawing that comprises the air-bag control device of double-balloon endoscope of the present invention.
Fig. 8 is the structure instance graph that expression air bag air taking port and pipe front end are pegged graft.
Fig. 9 is the block chart of internal structure of the air-bag control device of expression double-balloon endoscope of the present invention.
Figure 10 is that sequencer shown in Figure 9 moves schematic flow chart.
Figure 11 is used to illustrate that the sequencer shown in 9 does the flow chart of decompression action.
Figure 12 is used to illustrate that the sequencer shown in 9 does the flow chart of compression motion.
Figure 13 is the flow chart that is used to illustrate action when the sequencer shown in 9 is done the time-out processing.
The specific embodiment
Below, the embodiment of the airbag type endoscope that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the system construction drawing of the endoscope apparatus that is made of airbag type endoscope of the present invention and air-bag control device.
Endoscope apparatus shown in this figure has the double-balloon endoscope and the air-bag control device 100 that are made of airbag type endoscope 10 and sleeve pipe 50.
Airbag type endoscope 10 is fujinon electronic video endoscopes that 12 front end is provided with object lens optical system 76 (with reference to Fig. 3) and imaging apparatus (CCD) etc. in the insertion section, observes picture by the CCD imaging by object lens optical system 76, and carries out opto-electronic conversion at this.Expression is by the signal of telecommunication of the observation picture of opto-electronic conversion, through insertion section 12 and the electric wire in the operating portion 14 at hand, is output in the not shown processor, and is carried out appropriate signals at this and handles backward supervision device TV output.Can on monitor TV, show the observation picture with this.
In addition, front end side in airbag type endoscope 10 insertion sections 12, be formed with air and supply with extraction mouth 16, on the other hand, operating portion 14 sides are provided with air bag air taking port 18 at one's fingertips, by along the insertion section 12 set internal diameters be about 0.8mm air supply pipe 19 (with reference to Fig. 4: air flow circuit) connect air supply with extract out mouthfuls 16 with air bag air taking port 18.
When this airbag type endoscope 10 is used as double-balloon endoscope, cover insertion section front end 70 with air bag (the 1st air bag) 20, and with fixing the two ends that fix air bag 20 with rubber.Therefore, from air bag air taking port 18, by air supply with to extract out mouthfuls 16 to air bag 20 in air supply air bag 20 is expanded, or extract the air in the air bag 20 out and make air bag 20 contractions.
Sleeve pipe 50 shown in Figure 2, be with airbag type endoscope 10 co-operatings and be used for the insertion section 12 of airbag type endoscope 10 is inserted the device in small intestinal deeps, it has the big slightly internal diameter of external diameter than airbag type endoscope 10 insertion sections 12, and has the flexibility same with the insertion section 12 of airbag type endoscope 10.On the front end side of sleeve pipe 50, be formed with air and supply with extraction mouth 52, around the pipe front end, be provided with and can surround the air bag (the 2nd air bag) 54 that mouth 52 is extracted in this air supply out.In addition, be provided with air bag air taking port 56, by along the integrally formed internal diameter of the periphery of sleeve pipe 50 being air supply pipe (air flow circuit) 58 these air bag air taking ports 56 of connection and the air supply extraction mouth 52 about 1mm at the rear portion of sleeve pipe 50.Utilize this structure, or supply with through air supply pipes 58, air from air bag air taking port 56 and to extract mouthfuls 52 out and air bag 54 is expanded, or extract the air in the air bag 54 out and air bag 54 is shunk to air bag 54 air supplies.In addition, symbol 60 is the water filling ports that are used for injecting lubricant (water) in sleeve pipe 50.In order visually to distinguish this water filling port 60 and air taking port 56, its shape and varying in color.
Air-bag control device 100 shown in Figure 1, be to carry out that the air air supply is extracted out so that the device that the air bag 54 of the front end of the air bag 20 of the insertion section front end 70 of airbag type endoscope 10 and sleeve pipe 50 alternately expands to be shunk to each air bag 20,54 respectively, and hand held switch 104 formations of using by device body 102 that is provided with pump 101 (with reference to Fig. 5: air is supplied with withdrawing device) and sequencer etc. and remote control.
On the front panel of the device body 102 of air-bag control device 100, be provided with the Pressure gauge 106 of on and off switch SW1, shutdown switch SW2, air bag 20 usefulness, the Pressure gauge 108 of air bag 54 usefulness etc.
In addition, on the front panel of device body 102, the pipe (the 2nd air flow circuit) 110,120 that is used for extracting out to each air bag 20,54 air air supplies usefulness is installed.That is, the front end of pipe 110 is connected with air supply pipe 19 by air bag air taking port 18, and the front end of pipe 120 is connected with air supply pipe 58 by air bag air taking port 56.In addition, the joint of each front end of pipe 110,120 and the joint of junction that connects these joints are by color separation or be formed different shapes, in order to avoid with the junction wrong of pipe 110,120.
The radicle of each pipe 110,120, connected respectively and be used to prevent the endoscope-use liquid collecting jar 130 that body fluid flows backwards when air bag 20,54 breaks and overlap effective liquid collecting jar 140, each liquid collecting jar 130,140 can be installed on the front panel of device body 102 with freely loading and unloading.
On the other hand, on hand switch 104, be provided with and be located at the same shutdown switch SW3 of the shutdown switch SW2 of device body 102 sides, the side air bag 20 pressurization/decompressions of indication endoscope endoscope's on/off switch SW 4, be used to keep endoscope's side air bag 20 pressure pause switch SW5, indicate the sleeve pipe on/off switch SW 6 of sleeve pipe side air bag 54 pressurization/decompressions and be used to keep the pause switch SW7 of sleeve pipe side air bag 54 pressure, this hand switch 104 is electrically connected with device body 102 implementations by cable 150.
Fig. 3 is the axonometric chart of insertion section front end 70, and Fig. 4 is the profile of insertion section front end 70.Insertion section front end 70 on this figure is made of bending section 72 and front end hard portion 74, and bending section 72 is connected the front end of soft part 13 of the insertion section 12 of pie graph 1.Front end hard portion 74, portion has closely disposed object lens optical system 76, a pair of illumination with camera lens 78,78, pliers passage (not shown) and the aquaporin (not shown) etc. of supplying gas within it.Ejaculation in object lens optical system 76 is distolateral, is provided with CCD by means of prism 80.
With on the camera lens 78, the ejecting end of light pilot cable 82 is installed in illumination.Light pilot cable 82 and passes insertion section 12 and not shown light guide rod and is connected.This light guide rod is connected with light supply apparatus, transmits light from light supply apparatus with this, and by illumination with the ejecting end irradiation subject of camera lens 78 from light pilot cable 82.
On insertion section front end 70, be provided with thin film air bag 20 with the free harmomegathus of energy of natural rubber system.This air bag 20 is arranged on the position of a part of the part that covers bending section 72 and front end hard portion 74.
In addition, in the inboard of insertion section front end 70, disposed the air supply pipe 19 of supplying with and deflating to air bag 20.And as shown in Figure 4, the radicle 19A of air supply pipe 19 is fixed on the connector bend 84 (fluid passage), and connector bend 84 is fixed in the embedded hole 87 that is formed at the pipe connecting portion 86 in the front end hard portion 74 by chimeric.Pipe connecting portion 86 is communicated with by recess 88 and the air supply extraction mouth 16 that is communicated with embedded hole 87, and this air is supplied with extraction mouth 16 and is opened on the outer peripheral face of front end hard portion 74.
Form air and supply with and extract mouthfuls 16 position out, the position that is covered by air bag 20, and be to be used to smear the position that links the outer pipe 73 that constitutes bending section 72 and the bonding agent 90 of front end hard portion 74.From the kinking portion 92 of each linking part of fixed bend pars convoluta 72 and front end hard portion 74, smear this bonding agent 90, and in kinking portion 92 and near it, solidify, form the portion of heaving at the Zhou Fangxiang of front end hard portion 74.
In addition, heaving in the portion of bonding agent 90, formed with the air supply and extracted mouthful 16 slot parts that are communicated with 94 out, by this slot part 94, air is supplied with and is extracted mouth 16 out from heaving portion's opening.
Below, illustrate that with reference to Fig. 5 the air flow circuit of liquid collecting jar 130,140 is constructed.Because liquid collecting jar 130, and the air flow circuit of liquid collecting jar 140 structure identical, so at air flow circuit structure of this explanation liquid collecting jar 130, and the explanation of omitting liquid collecting jar 140 air flow circuits structure.
The air flow circuit structure of the liquid collecting jar 130 shown in this figure is made of pipe (the 1st air flow circuit) 160, pipe (the 2nd air flow circuit) 110, bypass pipe (the 3rd air flow circuit) 162, check-valves (the 1st check-valves) 164 and check-valves (the 2nd check-valves) 166.
Pipe 160, its radicle is connected with pump 101, and its leading section connects and connection liquid collecting jar 130.In addition, pipe 110, its leading section is connected with the air bag air taking port 18 of air bag 20 sides, and its radicle connects and connection liquid collecting jar 130.And bypass pipe 162 makes a circulation in the leading section of pipe 160 and the radicle of pipe 110, and pipe 160 and pipe 110 are connected.
Check-valves 164 is arranged on the leading section of pipe 160, closes and opens when deflating by pump 101 air supplies the time.In addition, check-valves 166 is arranged on the bypass pipe 162, opens and closes when deflating by pump 101 air supplies the time.And the also two-way valve that can be made of air supply valve and air suction valve in the radicle setting of pipe 160 is connected the air supply valve side of two-way valve, air suction valve side is connected with the air suction pump with the air supply pump.
According to the air flow circuit structure of the liquid collecting jar 130 of such formation, when deflating when driving pump 101 and by pipe 160, the check-valves 164 that is located on the pipe 160 is opened, and the check-valves 166 that is located on the bypass pipe 162 cuts out.Therefore, air is attracted by pump 101 through liquid collecting jar 130 and pipe 160 from pipe 110.At this moment, when air bag 20 breaks,, can stop body fluid to flow backwards to pump 101 owing to be left on the liquid collecting jar 130 from the body fluid of pipe 110 attractions.
On the other hand, when from pump 101 during to pipe 160 air supplies, the check-valves 164 that is located on the pipe 160 cuts out, and the check-valves 166 that is located on the bypass pipe 162 is opened.Thus, come the air of self-pumping 101 to be fed into air bag 20 sides through bypass pipe 162 and pipe 110 from pipe 160.At this moment, even have body fluid in the liquid collecting jar 130, flow to pipe 110 owing to walking around liquid collecting jar 130, so liquid collecting jar 130 is not by air pressurized.Therefore, can stop the body fluid that is deposited in the liquid collecting jar 130 to flow backwards to endoscope's 10 sides.
Fig. 6 is the 2nd embodiment of the air flow circuit structure of liquid collecting jar 130.This air flow circuit structure is the structure of simple type, bypass pipe shown in Figure 5 162 or check-valves 164,166 are not set, and the front end of pipe 160 is directly run through and be connected on the liquid collecting jar 130, and, the radicle of pipe 110 is directly run through and be connected on the liquid collecting jar 130.
According to the air flow circuit structure of Fig. 6, when deflating when driving pump 101 and by pipe 160, air is attracted by pump 101 through liquid collecting jar 130 and pipe 160 from pipe 110.At this moment, when air bag 20 breaks,, can stop body fluid to flow backwards to pump 101 owing to be left on the liquid collecting jar 130 from the body fluid of pipe 110 attractions.
In addition, when from pump 101 during to pipe 160 air supplies, air is fed into air bag 20 sides from pipe 160 through liquid collecting jars 130 and pipe 110.In addition, under the situation that the air flow circuit of Fig. 6 is constructed, consider the body fluid that resides in liquid collecting jar 130, must be from the tank bottoms leading section of pipe 160 and the radicle of pipe 110 fully installed of liquid collecting jar 130 with leaving.
Fig. 7 is the endoscope apparatus system construction drawing that comprises the air-bag control device of double-balloon endoscope of the present invention.
As shown in the drawing, the double-balloon endoscope and the air-bag control device 300 that are made of airbag type endoscope 210 and sleeve pipe 250 constitute this endoscope apparatus.
Airbag type endoscope 210 is that 212 front end is provided with pick-up lens and imaging apparatus (for example, fujinon electronic video endoscope CCD) is observed picture by pick-up lens imaging on CCD, and is carried out opto-electronic conversion at this in the insertion section.By the signal of telecommunication of the observation picture of opto-electronic conversion, through insertion section 212 and at hand the electric wires in the operating portion 214 be output in the not shown processor, and carry out appropriate signals at this and handle backward supervision device TV output.Can on monitor TV, show the observation picture with this.
In addition, on the side of the insertion section of airbag type endoscope 210 212 front ends, be provided with air and supply with extraction mouth 216, on the other hand, operating portion 214 sides are provided with air bag air taking port 218 at one's fingertips, by 212 internal diameters that are provided with are air supply pipe about 0.8mm along the insertion section, connect air supply with extract out mouthfuls 216 with air bag air taking port 218.
When this airbag type endoscope 210 is used as double-balloon endoscope, with the front end of air bag 220 covering insertion sections 212, and with fixing the two ends of using rubber fixation balloon 220.Therefore, supply with to extract mouthfuls 216 from air bag air taking port 218 out by air and air bag 220 is expanded, deflate in the air bag 220 and make air bag 220 shrink (being close to the insertion section front end) to air bag 220 air supplies.
Sleeve pipe 250, be with airbag type endoscope 210 co-operatings, be used for the device in small intestinal deep is inserted in the insertion section 212 of airbag type endoscope 210, it has the big slightly internal diameter of external diameter than airbag type endoscope 210 insertion sections 212, and has the flexibility same with the insertion section 212 of airbag type endoscope 210.
On the front end side of this sleeve pipe 250, be provided with air and supply with extraction mouth 252, around the pipe front end, be provided with and can surround the air bag 254 that mouth 252 is extracted in this air supply out.In addition,, be provided with air bag air taking port 256, by being that air supply pipe 258 about 1mm connects these air bag air taking ports 256 and air and supplies with and extract mouthfuls 252 out along the integrally formed internal diameter of the periphery of sleeve pipe 250 at the rear portion of sleeve pipe 250.Utilize said structure, or from air bag air taking port 256 through air supply pipes 258, air supply with extract out mouthfuls 252 to air bag 254 in air supply, air bag 254 is expanded, or extract air in the air bag 254 out, make air bag 254 contractions.In addition, symbol 260 is the water filling ports that are used for injecting lubricant (water) in sleeve pipe 250.
Air-bag control device 300, be to carry out the air air supply to each air bag 220,254 respectively to extract out so that the alternately expansible device of air bag 254 of the air bag 220 of the insertion section front end of airbag type endoscope 210 and sleeve pipe 250 front ends is made of the device body 302 that is provided with air pump and sequencer etc., the hand switch 304 that remote control is used.
On the front panel of the device body 302 of air-bag control device 300, be provided with on and off switch SW1, operated shutdown switch SW2, the Pressure gauge 306 of air bag 220 usefulness, the Pressure gauge 308 of air bag 254 usefulness are taking place when unusual etc.
In addition, on the front panel of device body 302, the pipe 310,320 that is used for using to 220, the 254 supply extractions of each air bag air has been installed.In addition, the internal diameter of each pipe 310,320 is about 6mm.
At each pipe 310,320 midway, be respectively arranged with and be used to prevent the liquid collecting jar 330 of the endoscope-use of body fluid refluence when balloon rupture and overlap effective liquid collecting jar 340, each liquid collecting jar 330,340 can load and unload on the front panel that is installed in device body 302 freely.
For the connection error that prevents or pipe 310 is connected with sleeve pipe side air bag air taking port 256 or pipe 320 is connected with the air bag air taking port 218 of endoscope side, above-mentioned pipe 310 is different with color, style that pipe 320 is formed each pipe, and different shape such as shape of joint 312,322, size.
What represent on Fig. 8 is the joint (air bag air taking port) 256 of sleeve pipe side, and the example of the joint 322 of pipe 320 front ends.
As shown in the drawing, on an end of joint 256, formed pin thread 256A, and the center that comprises the joint 256 of this pin thread 256A is formed hollow, and is connected with pipe 257 on being connected sleeve pipe 250.
On the other hand, on the joint 322 of pipe 320 front ends, formed the bonded female thread 322A of pin thread 256A screw thread with above-mentioned joint 256,, formed the interior protuberance 323 of pin thread 256A that can insert above-mentioned joint 256 at the center of this female thread 322A.The center that comprises the joint 322 of this protuberance 323 is formed hollow, and is connected with pipe 320.
Above-mentioned joint 256 and 322 also can have air-tightness with the bonded method connection of mutual screw thread.
At this moment, as shown in Figure 7, the joint 312 of endoscope's side pipe 310 with the joint 322 (with reference to Fig. 8) of pipe 320, is formed different joint geometry and size (comprising the diameter of thread and spacing etc.) mutually.With this, can not mistakenly joint 312 be connected with sleeve pipe side air bag air taking port 256, or joint 322 is connected (can prevent connection error) with the air bag air taking port 218 of endoscope side.
And the joint (air bag air taking port) 256 of the joint of endoscope's side (air bag air taking port) 218 and sleeve pipe side also forms different mutually joint geometry and size etc., so that can connect with corresponding joint 312,322.
In addition, in order to prevent to be located at the connection error of joint 256 and water filling port 260 on the sleeve pipe 250, it forms shape and size or pipe color, different these air bag air taking ports 256 and the water filling port 260 of style.
On the other hand, on hand switch 304, be provided with and be located at the sleeve pipe on/off switch SW 6 of the same shutdown switch SW3 of the shutdown switch SW2 of device body 302 sides, endoscope's on/off switch SW 4 of indication endoscope side air bag 220 pressurization/decompressions, the pause switch SW5 that is used to keep endoscope's side air bag 220 pressure, the 254 pressurization/decompressions of indication sleeve pipe side air bag and be used to keep the pause switch SW7 of sleeve pipe side air bag 254 pressure, and this hand switch 304 passes through cable 350 and is electrically connected with device body 302 implementations.
Below, the operation the when double-balloon endoscope that uses said structure is described.
The insertion section 212 of airbag type endoscope 210 is inserted in the sleeve pipes 250, the pipe 310 of air-bag control device 300 is connected with the air bag air taking port 218 of endoscope side, pipe 320 is connected with the air bag air taking port 256 of sleeve pipe side.
Then, process stomach or large intestine are inserted into small intestinal with the insertion section of double-balloon endoscope, when when being inserted into the small intestinal deep, air bag 220,254 are alternately expanded.That is, endoscope's on/off switch SW 4 of hand switch 304 is placed " connection " and send the pressurization instruction, from the device body 302 of air-bag control device 300 air is supplied with to air bag 220 by pipe 310, and made air bag 220 expand into predefined normal pressure.With this, the insertion section front end of airbag type endoscope 210 is fixed on the intestinal wall.On the other hand, the sleeve pipe on/off switch SW 6 of hand switch 304 is placed disconnection and sends the decompression instruction, pipe 320 grades that are connected with air bag 254 attracted to predefined negative pressure, and air bag 254 is shunk, and are in sleeve pipe 250 and can carry out state to moving to intestinal tube.
Under this state, advance sleeve pipe 250 so that the front end of sleeve pipe 250 arrives near the front end of airbag type endoscope 210.
Then, opposite with above-mentioned situation, the sleeve pipe on/off switch SW 6 of hand switch 304 placed connect and send the pressurization instruction, from device body 302 air is supplied with to air bag 254 by pipe 320, and made air bag 254 expand into predefined normal pressure.With this, the front end of sleeve pipe 250 is fixed on the intestinal wall.On the other hand, endoscope's on/off switch SW 4 of hand switch 304 is placed disconnection and sends the decompression instruction, pipe 310 grades that are connected with air bag 220 attracted to predefined negative pressure, air bag 220 is shunk, make the insertion section 212 of airbag type endoscope 210 be in the state that relatively moves, and advance the insertion section 212 of airbag type endoscope 210 with intestinal tube.
Repeat above operation on one side, move to the deep step by step, and the front end of double-balloon endoscope is advanced Yi Bian make by the fixed fixing point of each air bag.When being advanced to when forming complicated flexagon place, make both sides' air bag 220,254 be in expansion state and at leisure with airbag type endoscope 210 with sleeve pipe 250 pullings.By this operation, can not extract endoscope distal end, and flexagon is oversimplified, can shorten the intestinal tube that is inserted into and it is stacked on the sleeve pipe 250.Repeat above-mentioned a series of operation, intestinal tube is folded on the sleeve pipe 250, while make flexagon oversimplify the insertion of carrying out to the small intestinal deep.
Below, the internal structure of air-bag control device 300 is described.Fig. 9 is the block chart of air-bag control device 300 internal structure embodiment.
As shown in the drawing, the device body 302 of air-bag control device 300 is mainly by power circuit 360, sequencer 370, endoscope-use control system A with overlap effective control system B and constitute.
Power circuit 360 is the devices that the commercial power from the supply socket input are converted to the dc source of required voltage and each supply in device body 302, and it has electric fuse, mains transformer, AC/DC transducer etc.In addition, in the distribution way of power circuit 360, be provided with on and off switch SW1.Also can use Switching Power Supply to replace mains transformer, AC/DC transducer.
Sequencer 370 according to the various instructions from hand switch 304, is controlled endoscope-use control system A respectively and is overlapped effective control system B, and makes buzzer call when detecting pressure anomaly etc. or abnormality detection.In addition, the detailed action of sequencer 370 will be in aftermentioned.
Endoscope-use control system A, mainly the decompression that drives with pump PA1, by motor A2 by the pressurization that is driven by motor A1 with pump PA2, in the future the air of self-pumping PA1 supply with on/off electromagnetic valve VA1, will attract the electromagnetic valve VA2 of on/off, electromagnetic valve VA3 and the detection that is used to switch pressurization/decompression to constitute to pressure transducer SA1, the SA2 of pipe 310 pressure of air bag 220 air supplies attraction air by pump PA2 by collecting tubule M.
Pressurization is started/is stopped by sequencer 370 controls with pump PA1 and decompression pump PA2.In addition, pressurization is adjusted with potentiometer VR2 with potentiometer VR1 and decompression and is adjusted with pump PA1 and decompression pump PA2, respectively pressurized adjustment, to obtain needed pressurization and decompression.If can obtain needed pressurization and decompression, also can omit to press to adjust and use potentiometer VR2 with potentiometer VR1 and decompression adjustment.
3 electromagnetic valve VA1, VA2 and VA3, all be 23 to electromagnetic valve, when making the solenoid action of each electromagnetic valve VA1, VA2, VA3 according to driving signal from sequencer 370, be in connection and be switched to position a, when cancellation during solenoidal action, then be in disconnection and be switched to position b.
Each electromagnetic valve VA1, VA2, VA3 shown in Figure 9 are in off-state respectively, under this state, use pump PA2 by driving decompression, can attract the air of air bag 220.In addition, when electromagnetic valve VA3 being placed when connecting and driving pressurization with pump PA1 from state shown in Figure 9, can be to air bag 220 air supplies.
Pressure transducer SA1 can detect predefined moulding pressure P 1(for example, than atmospheric pressure high 5.6 kPas (Kpa) pressure) and be higher than moulding pressure P 1Abnormal pressure P 2(for example, than the pressure of atmospheric pressure high by 8.2 (Kpa)), pressure transducer SA2 can detect predefined negative pressure pressure P 3(for example, forcing down the pressure of 6.0 dried handkerchiefs (Kpa)) than atmosphere.In addition, because pressure transducer SA1, SA2 are the pressure transducers that can only detect two pressure respectively, so, though in order to detect above-mentioned 3 pressure P 1, P 2, P 3And used two pressure transducers, but if can detect 3 pressure P 1, P 2, P 3, then also can use 1 pressure transducer.
With the detected pressure of pressure transducer SA1, SA2, pass to sequencer 370.And,, pass to piezometer 306, and be represented as the pressure of air bag 202 with the detected pressure of pressure transducer SA1.In addition, piezometer 306, shown in green usually, but at abnormal pressure P 2The Shi Bianwei redness.
In addition, overlap effective control system B, A is the same with the endoscope-use control system, its detailed description of Therefore, omited.
Below, endoscope-use liquid collecting jar 330 is described.Supply with the pipe 310 that deflates to air bag 220, have the pipeline that is connected with the air bag air taking port 218 of airbag type endoscope 210 by check-valves 332, pass through the pipeline that check-valves 334 and liquid collecting jar 330 are connected with air bag air taking port 218.
To air bag 220 air supplies the time, air supplies to air bag 220 through check-valves 332, during air in extracting air bag 220 out, attracts air from air bag 220 through airtight liquid collecting jar 330 and check-valves 334.
When attracting under air bag 220 disruptive states, body fluid also is attracted with air, but because the liquid collecting jar 330 of said structure, body fluid is left in the liquid collecting jar 330.Therefore, can prevent that body fluid from flowing in the air-bag control device 300.In addition, because the structure of the effective liquid collecting jar 340 of cover is also identical with endoscope-use liquid collecting jar 330, its detailed description of Therefore, omited.
Below, describe the action of sequencer 370 in detail with reference to the flow chart of Figure 10~Figure 13.In addition owing to utilize the air bag controlled of endoscope's side that sequencer 370 carries out identical with the air bag controlled of sleeve pipe side, so below the air bag controlled of endoscope's side only is described.
Figure 10 is the general flowchart of expression sequencer 370 actions.On this figure, sequencer 370 judges whether to have imported from hand switch 304 the decompression instruction (that is the disconnection of endoscope's on/off switch SW 4) (step S10) of air bag 220.When having imported the decompression instruction, then carry out reduced pressure treatment shown in Figure 11.
Equally, sequencer 370, judge whether to have imported the pressurization instruction (that is the connection of endoscope's on/off switch SW 4) of air bag 220 and whether imported the pause instruction (connection of pause switch SW5) (step S20, S30) that keeps air bag 220 pressure from hand switch 304.Then, when having imported the pressurization instruction, carry out pressurized treatments shown in Figure 12, when having imported pause instruction, carry out time-out shown in Figure 13 and handle.
In addition, on the key top of endoscope's on/off switch SW 4 and endoscope-use pause switch SW5, be respectively equipped with as shown in Figure 9 green LED, White LED, this green LED, White LED are lighted when switch connection.In addition, on sleeve pipe on/off switch SW 6, the effective pause switch SW7 of cover, also be respectively equipped with green LED, White LED.
Below, with reference to the flowchart text reduced pressure treatment of Figure 11.
At first, sequencer 370, the time T that will be used for the intervalometer of timing is returned zero (step S102), then, makes the control system A action (step S104) of reducing pressure.That is, as illustrated in fig. 9 electromagnetic valve VA1, VA2 and VA3 are disconnected respectively and drive decompression pump PA2.
Subsequently, according to detection signal, judge whether the pressure in the pipe 310 has reached predefined negative pressure pressure P from pressure transducer SA2 3(step S106) is when reaching the negative pressure pressure P 3The time, stop decompression action (step S108).
Then, make the solenoid action of electromagnetic valve VA2, and switch to position a stopping with the action of reducing pressure.And, because along the diameter of the set air supply pipe in the insertion section 212 of airbag type endoscope 210, fully littler than the diameter of pipe 310, so Once you begin attract (decompression), then the pressure at air bag 220 reaches the negative pressure pressure P 3Before, the pressure in the pipe 310 reaches the negative pressure pressure P earlier 3, and stop the decompression action.But, when the pressure of air bag 220 does not reach the negative pressure pressure P 3The time, the pressure in the pipe 310 can rise once more, and becomes than negative pressure pressure P 3Greatly.At this moment, sequencer 370 begins the decompression action once more according to the detection signal of pressure transducer SA2.Repeat to reduce pressure so repeatedly action beginning with stop, then can making the pressure of air bag 220 reach the negative pressure pressure P 3
On the other hand, do not reaching the negative pressure pressure P 3The time, judge from the time T of decompression action beginning whether reached 30 seconds (step S110).Subsequently, reaching before 30 seconds, when repeating step S104, S106, S110 handle, judging whether unusual (for example, pipe 310 breaks away from air bag air taking port 218).
Above-mentioned when unusual when detecting, the time T of intervalometer is returned zero, and buzzer call (step S112, S114).In addition, be configured in the shutdown switch SW2 that is located on the device body 302 and the red LED be located on each the key top of the shutdown switch SW3 on the hand switch 304 is lighted.
Then, judged whether to press any one (step S116) among shutdown switch SW2 or the SW3,, stopped buzzer call (step S118) when being judged as when pressing.On the other hand, when shutdown switch SW2 or shutdown switch SW3 are not pressed, judge and whether passed through 20 seconds from the time of buzzer call, when having passed through 20 seconds, automatically stop buzzer call.
In above-mentioned decompression action, in case reported unusually with buzzer, usually, the operator of double-balloon endoscope after pressing shutdown switch SW2 or shutdown switch SW3, confirms whether pipe 310 comes off.
Below, with reference to the flowchart text pressurized treatments of Figure 12.
At first, sequencer 370 returns the time T of intervalometer to zero (step S202), then, makes the control system A action (step S204) of reducing pressure.That is, electromagnetic valve VA3 is connected, and drive pressurization pump PA1.
Subsequently, according to detection signal, judge whether the pressure in the pipe 310 has reached predefined moulding pressure P from pressure transducer SA1 1(step S206) is when reaching moulding pressure P 1The time, further judge whether to reach abnormal pressure P 2(step S208).And, when not reaching abnormal pressure P 2The time, stop compression motion (step S210).
Then, make the solenoid action of electromagnetic valve VA1 and switch to position a, to stop to carry out compression motion.And fully littler than the diameter of pipe 310 because along the diameter of the set air supply pipe in the insertion section 212 of airbag type endoscope 210, so air supply (pressurization) Once you begin, then the pressure at air bag 220 reaches moulding pressure P 1Before, the pressure in the pipe 310 reaches moulding pressure P earlier 1, and stop compression motion.But, when the pressure of air bag 220 does not reach moulding pressure P 1The time, the pressure in the pipe 310 can reduce once more, and becomes than negative pressure pressure P 1Little.At this moment, sequencer 370 according to the detection signal of pressure transducer SA1, begins compression motion once more.The beginning that so repeatedly repeats compression motion with stop, then can making the pressure of air bag 220 reach moulding pressure P 1
On the other hand, or when carrying out vermicular movement or not stopping compression motion because of unusual (for example, electromagnetic valve VA1's is unusual) of device body 302 because of small intestinal, the pressure in the pipe 310 reach abnormal pressure P sometimes 3At this moment, enter step S212, and judge abnormal pressure P at this moment from step S208 3Whether continued for 5 seconds.
If abnormal pressure P 3Continued for 5 seconds, then the time T of intervalometer has been returned zero, and the buzzer that pipes (step S214, S216).Simultaneously, the red LED that is configured on each key top of shutdown switch SW2, SW3 is lighted.
Then, judge whether among shutdown switch SW2 or the shutdown switch SW3 any one is pressed (step S218), when having been pressed, stop buzzer call (step S220).Then, the action (step S222) of reducing pressure is up to abnormal pressure P 2Reach moulding pressure P 1This action of reducing pressure disconnects electromagnetic valve VA3 and switches to position b and goes up and carry out.At this moment, for example,, also can reduce pressure by switching solenoid valve VA3 even when electromagnetic valve VA1 breaks down and stopped compression motion.
Then, the time T of intervalometer is returned zero (step S224), the operation (step S226) of other switch SW that the disconnection (decompression) that judges whether endoscope's on/off switch SW 4 is operated etc.During 20 seconds after stopping buzzer call certainly, when other switch SW are not operated (step S228), enter step S230, and the action of reducing pressure is up to reaching the negative pressure pressure P 3Till.In addition, in step S226, when judgement has the operation of other switch SW, then carry out air bag controlled according to the instruction of this switch SW.
In addition, in step S218,, then judge whether then to have the operation (step S232) of other switch SW when being judged as shutdown switch SW2 or SW3 when not pressed.In addition,, then stop buzzer call (step S236) if when the state of not pressing shutdown switch SW2, SW3 and not operating other switch SW from buzzer call has been kept 20 seconds (step S234), and the action of reducing pressure, up to the negative pressure pressure P that reduces pressure 3Till (step S230).
On the other hand, return step S206, when the pressure of pipe in compression motion 310 does not reach moulding pressure P 1The time, judge whether the time T that begins from compression motion has reached 60 seconds (step S238).And, before time T has reached 60 seconds, during the processing of repeating step S204, S206, S238, be judged as unusual (for example, pipe 310 is thrown off with air bag air taking port 218).
As mentioned above,, then the time T of intervalometer is returned zero if detect unusually, and buzzer call (step S240, S242).Simultaneously, the red LED that is configured on each key top of shutdown switch SW2, SW3 is lighted.
Then, judge whether among shutdown switch SW2 or the SW3 any one is pressed (step S244), when having been pressed, stop buzzer call (step S246).Subsequently, the time T of intervalometer is returned zero (step S248), and judge whether the operation (step S250) of other switch SW.When not having the operation of other switch SW during 20 seconds after stopping buzzer call certainly (step S252), enter step S230, and the action of reducing pressure, up to reaching the negative pressure pressure P 3Till.
On the other hand, in rapid S244, when shutdown switch SW2 or SW3 are not pressed, judge whether the time T of buzzer call has passed through 20 seconds (step S254), if passed through for 20 seconds, then after automatically stopping buzzer call (step S256) enters step 230, and the action of reducing pressure is up to the negative pressure pressure P that reduces pressure 3Till.
Below, the abnormality detection when air bag 220 breaks is described.
Because along the diameter of the set air supply pipe in the insertion section 212 of airbag type endoscope 210, littler than the diameter of pipe 310, (diameter of pipe 310 is about 6mm, the diameter of air supply pipe is about 0.8mm), when beginning air supply when (pressurization), reach moulding pressure P at the pressure of air bag 220 1Before, the pressure in the pipe 310 reaches moulding pressure P earlier 1, and stop compression motion.But, when the pressure of air bag 220 does not reach moulding pressure P 1The time, because the air in the pipe 310 supply with to air bag 220 by air supply pipe,, and become than moulding pressure P so the pressure in the pipe 310 can reduce once more 1Little.At this moment, sequencer 370 begins compression motion once more according to the detection signal from pressure transducer SA1.
When air bag 220 does not break, the beginning that repeatedly repeats above-mentioned compression motion with stop, then can making the pressure of air bag 220 reach moulding pressure P 1, but when air bag 220 breaks, reach moulding pressure P even repeat the pressure that compression motion can not make air bag 220 for a long time 1
At this moment, in the present embodiment, beginning and stopping (promptly with short period repetition compression motion, the on/off vibration of electromagnetic valve VA1), but the time that the duration of oscillation that has produced when having continued the compression motion of the normal air bag 220 of ratio contraction is fully grown (for example, 40 seconds) time, then be judged as air bag 220 and break, and buzzer call.
Below, handle with reference to the flowchart text time-out of Figure 13.
Sequencer 370, the input (connection of pause switch SW5) of pause instruction that judge to keep the pressure of air bag 220 be in the decompression action, or compression motion in (step S302).And, when in the decompression action, having imported pause instruction, make the solenoid action of electromagnetic valve VA2, electromagnetic valve VA2 is switched on position a, and stop decompression action (step S304).
On the other hand, when in compression motion, having imported pause instruction, make the solenoid action of electromagnetic valve VA1, electromagnetic valve VA1 is switched on position a, and stop compression motion (step S306).
This pause function, for example, while when making airbag inflation that double-balloon endoscope is inserted in big enteral, use.That is, in compare the big large intestine of intestinal tube diameter with small intestinal, the size of air bag has reached tube chamber, and the pressure of air bag does not also rise to predefined moulding pressure P sometimes 1, at this moment use above-mentioned pause function and stop compression motion.
In addition, when the operation double-balloon endoscope, usually,, can judge whether air bag has expanded fully at big enteral according to this fluoroscopy images owing to observe fluoroscopy images.
In addition, in temporarily stopping in decompression action or compression motion, in case Push switch SW5 once more, decompression action or compression motion before then recovering temporarily to stop.And, in temporarily the stopping of decompression action or compression motion, in case pressed pressurization or relief cock (endoscope's on/off switch SW 4), then according to the switch of being pressed, preferential action.
In this embodiment, be at endoscope-use control system A and overlap among the effective control system B, be provided with pressurization respectively and use pump, but also these pumps can be common to endoscope-use and overlap effective with pump and decompression.
In addition, moulding pressure P 1, abnormal pressure P 2, the negative pressure pressure P 3, can distinguish endoscope and sleeve pipe and setting at random.And, make the control of each air bag or expansion or contraction, except the pressure that detects according to pressure transducer carries out, also can detect the air mass flow of supplying with or extracting out from air bag and control to air bag.

Claims (14)

1. an airbag type endoscope is provided with air bag at the endoscope insertion part front end, and air supply withdrawing device, is connected with this air bag by air flow circuit, and makes air bag harmomegathus by being supplied with withdrawing device supply by this air and deflating, and it is characterized in that:
Part midway at described air flow circuit is connected with the liquid collecting jar.
2. airbag type endoscope, by: the endoscope insertion part front end be provided with that the 1st air bag and air supply with that withdrawing device is connected with the 1st air bag by air flow circuit and by by this air supply withdrawing device supply and deflate the airbag type endoscope that makes the 1st air bag harmomegathus and
As the sleeve pipe that can insert described endoscope insertion part, be provided with that the 2nd air bag and air supply with that withdrawing device is connected with the 2nd air bag by air flow circuit and by by this air supply withdrawing device supply and deflate the sleeve pipe of the 2nd air bag harmomegathus is constituted, it is characterized in that at this sleeve pipe front end:
In the part midway of the described air flow circuit of described airbag type endoscope and the part midway of described telescopic described air flow circuit, be connected with the liquid collecting jar respectively.
3. airbag type endoscope according to claim 1 and 2 is characterized in that: described air flow circuit has:
Radicle and described air supply with that the withdrawing device side is connected and leading section and tank connected the 1st air flow circuit of described liquid collecting and
Leading section be connected with described air bag side and radicle and tank connected the 2nd air flow circuit of described liquid collecting and
With make a circulation in the mode of the radicle of the leading section of described the 1st air flow circuit and the 2nd air flow circuit connect the 1st air flow circuit and the 2nd air flow circuit the 3rd air flow circuit and
Be located at described the 1st air flow circuit leading section and the 1st check-valves of when supplying with the withdrawing device air supply, closing, when deflating, opening by described air and
Be located on described the 3rd air flow circuit and the 2nd check-valves of when supplying with the withdrawing device air supply, opening, when deflating, closing by described air.
4. the air-bag control device of a double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with the airbag type endoscope deflate and as the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope is characterized in that, has:
Respectively the 1st pipe that is connected with described airbag type endoscope and telescopic air bag air taking port and the 2nd pipe and
By described the 1st, the 2nd pipe respectively to described the 1st, the 2nd air bag carry out pump machanism that air supply with to extract out and
Can detect described the 1st, the 2nd balloon rupture, pressure anomaly and described the 1st, the 2nd pipe come off etc. the 1st unusual abnormality detection mechanism and the 2nd abnormality detection mechanism and
When detect the unusual abnormal alarm mechanism of unusual time report by the described the 1st and the 2nd abnormality detection mechanism.
5. the air-bag control device of double-balloon endoscope according to claim 4 is characterized in that, also has:
Respectively to the operating mechanism of described the 1st air bag and the 2nd air bag indication pressurization decompression and
Detect respectively the 1st pressure transducer of the pressure in described the 1st pipe and the 2nd pipe and the 2nd pressure transducer and
Controlling organization, this controlling organization, when by described operating mechanism indication pressurization or decompression, control to supply with to described the 1st pipe, the 2nd pipe according to the detected pressure of described the 1st, the 2nd pressure transducer and deflate, so that described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure from described pump machanism.
6. the air-bag control device of double-balloon endoscope according to claim 5, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization, the change of the detected pressures of described the 1st, the 2nd pressure transducer, be center and so that the speed certain time is above fast with predefined moulding pressure, then detect unusual for because of the described the 1st and the 2nd balloon rupture.
7. the air-bag control device of double-balloon endoscope according to claim 5, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization, when described the 1st, the 2nd pressure transducer detects than the high specification exception pressure of predefined moulding pressure, or when certain hour has been kept in the detection of this abnormal pressure, then detect to unusual.
8. the air-bag control device of double-balloon endoscope according to claim 5, it is characterized in that: described the 1st, the 2nd abnormality detection mechanism, when by in the pump machanism pressurization or in the decompression, the detected pressures of described the 1st, the 2nd pressure transducer when not reaching predefined moulding pressure or negative pressure pressure behind the certain hour, then detect unusual for what come off because of described the 1st, the 2nd pipe.
9. the air-bag control device of double-balloon endoscope according to claim 5, it is characterized in that: the shutdown switch that also has the abnormal alarm of the described abnormal alarm of releasing mechanism, when operation during described shutdown switch, described abnormal alarm mechanism stops abnormal alarm.
10. the air-bag control device of double-balloon endoscope according to claim 9, it is characterized in that: described controlling organization, in by the pressurization of described pump machanism, after detecting unusually with described abnormality detection mechanism, when the described shutdown switch of operation, make described pump machanism do to reduce pressure action.
11. the air-bag control device of double-balloon endoscope according to claim 5, it is characterized in that: also have the intervalometer mechanism that carries out timing to from the detected unusual moment institute's elapsed time of described abnormality detection mechanism, described abnormal alarm mechanism, after having carried out the timing of stipulated time, then stop abnormality alarm by described intervalometer mechanism.
12. the air-bag control device of double-balloon endoscope according to claim 11, it is characterized in that: described controlling organization, in by the pressurization of described pump machanism, by described abnormality detection mechanism detect unusual after, after having carried out the timing of stipulated time, make described pump machanism do the decompression action by described intervalometer mechanism.
13. the air-bag control device of a double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with the airbag type endoscope deflate and as the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope is characterized in that, has:
Respectively the 1st pipe that is connected with described airbag type endoscope and telescopic air bag air taking port and the 2nd pipe and
By described the 1st, the 2nd pipe respectively to described the 1st, the 2nd air bag carry out pump machanism that air supply with to extract out and
Respectively to the operating mechanism of described the 1st air bag and the 2nd air bag indication pressurization decompression and
Respectively to described the 1st air bag and the 2nd air bag indication stop to pressurize decompression the 2nd operating mechanism and
Detect respectively the 1st pressure transducer of the pressure in described the 1st pipe and the 2nd pipe and the 2nd pressure transducer and
Controlling organization, this controlling organization, when by described the 1st operating mechanism indication pressurization or decompression, according to the detected pressure of described the 1st, the 2nd pressure transducer, control is supplied with and is deflated to described the 1st pipe, the 2nd pipe from described pump machanism, so that described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure, and the time, can keep current pressure and temporarily stop pressurization decompression by described pump machanism by described the 2nd operating mechanism indication stopping pressurization or decompression.
14. the air-bag control device of a double-balloon endoscope, this double-balloon endoscope, by the 1st air bag being installed at endoscope distal end and can having been supplied with by the airbag type endoscope that goes out air and be the sleeve pipe of the insertion section that can insert described airbag type endoscope and the sleeve pipe formation that is provided with the 2nd air bag and can deflates to the supply of the 2nd air bag at this sleeve pipe front end to the 1st air bag; The air-bag control device of this double-balloon endoscope is characterized in that, has:
For the 1st pipe that is connected with described airbag type endoscope and telescopic air bag air taking port respectively and the 2nd pipe, and the shape of mutual color, style or the joint that is connected with the air bag air taking port or the 1st pipe that varies in size and the 2nd pipe and
By described the 1st, the 2nd pipe respectively to described the 1st, the 2nd air bag carry out pump machanism that air supply with to extract out and
Respectively to the operating mechanism of described the 1st air bag and the 2nd air bag indication pressurization decompression and
Detect respectively the 1st pressure transducer of the pressure in described the 1st pipe and the 2nd pipe and the 2nd pressure transducer and
Controlling organization, this controlling organization, when by described operating mechanism indication pressurization or decompression, according to the detected pressure of described the 1st, the 2nd pressure transducer, control is supplied with to described the 1st, the 2nd pipe from described pump machanism and is deflated, so that described the 1st, the 2nd air bag reaches predefined moulding pressure or negative pressure pressure.
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JP2003135758A JP3922211B2 (en) 2003-05-14 2003-05-14 Balloon control device for double balloon endoscope

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