CN1086288C

CN1086288C - Automatic colon radiography instrument

Info

Publication number: CN1086288C
Application number: CN96109024A
Authority: CN
Inventors: 李敬才
Original assignee: Children's Hospital Of Suzhou Medical College
Current assignee: Children's Hospital Of Suzhou Medical College
Priority date: 1996-07-26
Filing date: 1996-07-26
Publication date: 2002-06-19
Anticipated expiration: 2016-07-26
Also published as: CN1148506A

Abstract

The present invention discloses an automatic colon contrast instrument which is composed of an air compressor, a pressure sensor, a barium bottle, a flushing liquid bottle, a sewerage collecting bottle, a three-way anal tube, a tube joint, a one-way valve, an electromagnetic valve, an electric valve, a corresponding connection pipeline and an electric appliance control unit. The present invention is a novel instrument which integrates an optics technology, a mechanical technology and an electronic technology, and has the double functions of perfect remote control or machine room operation. The automatic colon contrast instrument is provided with an independent automatic suction system, and a suction path and an injection path are completely separated. The automatic colon contrast instrument is provided with a unique instrument self-flushing system, pressure control is reliable, and injection quantity can be controlled accurately. The present invention is an ideal automatic colon contrast instrument and can be used for curing infant's intussusception.

Description

Automatic colon radiography instrument

The present invention relates to the Medical Instruments technical field, specifically a kind of automatic colon radiography instrument.

For a long time, carry out barium enema, barium agent air double contrast radiography of colon both at home and abroad mainly by manual operation, one of its method is that the barium agent is contained in Enemator, hangs on eminence.The operator opens X line machine for the patient inserts good anal canal, under perspective, by the height of water, the barium agent is poured into patient's intestinal, and then pulls out anal canal, advises patient's row's barium of going to toilet; Behind row's barium, insert anal canal more again, pinch air bag to the intestinal gas injection by the anal canal hands.Sometimes, the patient arranges the barium difficulty, must go to toilet repeatedly, and increase operator's work load, and check that effect is often unsatisfactory.If the agent of retention barium is too much in the intestinal, be easy to cover focus, the interior barium agent of enteric cavity is very few, also makes pathological changes be difficult to show.Both of these case all can cause mistaken diagnosis, leads to grave consequences.In order to change this backward situation, domestic someone once carried out research, and desire adopts self-reacting device to replace traditional manual operations.For example, prior art CN2041557U and CN2093644U have provided " digitally controlled multifunctional medical instrument " and " automatic remote control double contrast radiograph enemator " respectively.Compare with manual operations, foregoing invention generally speaking has some progress like this: 1. adopt electronic method to replace manual operations, can annotate barium, gas injection from the trend intestinal; 2. can show automatically and controlled pressure; 3. can control automatically substantially and annotate barium dosage; 4. " automatic remote control double contrast radiograph enemator " adopts the method for wired remote control, can carry out remote manipulation more conveniently, and the medical worker of operation can avoid being subjected to the X line loss and hinder.Yet such scheme remains in such some shortcomings: one, and mode of operation is single, promptly or only is convenient to remote manipulation, or only is convenient to the machine room operation; Its two, do not possess the auto-pumping function, in other words, do not possess ideal auto-pumping function; Its three, no instrument self washing capacity; Its four, do not satisfactorily resolve accurate control injection rate as yet and effectively prevent the problem that the barium agent is backflowed.

The high reason of automatic colon radiography instrument development difficulty mainly contains some, the one, influenced by the physicochemical property of contrast media: the contrast agent that double contrast radiography of colon is commonly used is a barium sulfate suspension, this contrast agent is than great, easily precipitation is lumpd, and owing to contain more colloidal substance, adhesion is stronger, and difficult the cleaning has certain action of rust again to metallics; The 2nd, be subjected to the influence of colon anatomical factors: colon is the hollow viscera of expanding, be about 150cm, the nature volume can reach more than the 2000ml, full of twists and turns traveling, the position is fluctuated, for the caecum and the ascending colon of near-end, the barium agent be irritated into easy, but, eject but very difficult immediately in case irritate too much; The 3rd, to colon radiography, especially dual this inspection of amount radiography itself, the specification requirement height, operation is complicated.Double contrast radiograph claims double contrast radiography again, and its principle is that the materials of low density that will strengthen X line transmission effect organically combines with the high-density matter that intercepts X line transmission effect, to strengthen the recall rate to pathological changes.Because of its effect obviously is better than single contrast radiography, now generally be used for from the inspection of esophagus up to the whole digestive tube of colon.For double contrast radiography of colon, the normally barium agent of high density contrast agent that can intercept X line transmission effect of employing, and the low-density contrast medium that can strengthen X line transmission effect that adopts is an air, Here it is usually said barium agent-air double contrast radiography of colon.From specification requirement, need inject barium agent and two kinds of materials of air to colonic during radiography, the mutual ratio of two kinds of materials preferably can be adjusted under X line perspective at any time, when needs increase the barium agent, annotates barium to intestinal immediately, when needs reduce the barium agent, immediately with the barium agent from the enteral sucking-off, when needs increase gas, immediately to the intestinal gas injection, when needs reduce gas, immediately with gas from the enteral sucking-off; On speed, preferably can check a series of patients continuously apace, but must avoid causing cross infection.

The object of the present invention is to provide and a kind ofly have independently the auto-pumping system, have instrument self and wash system, can accurately control injection rate and effectively prevent the automatic colon radiography instrument that enteral prods backflows.

The objective of the invention is to be achieved through the following technical solutions, specifically comprise air compressor machine, pressure transducer, the barium bottle, cleaning liquid bottle, effluent-receiving flask, three rectal tub, pipe joint, check valve, electromagnetic valve, electrodynamic valve and corresponding connecting pipe, electrical control unit, the positive pressure side that it is characterized in that said air compressor machine (95) links to each other with the P mouth of second air bleeding valve by second check valve, the A mouth of second air bleeding valve links to each other with the upper end of barium bottle, the ascending pipe that inserts barium bottle bottom is through annotating the barium valve, second flushing valve, the ascending pipe joint links to each other with the injection end of three rectal tub, the aspiration end of three rectal tub is through the suction tube joint, second suction valve links to each other with the upper end of effluent-receiving flask, the P mouth of upper end first suction valve of effluent-receiving flask, the A mouth, the P mouth of intake valve, the A mouth, first check valve links to each other with the negative pressure end of air compressor machine, the A mouth of first suction valve links to each other with the negative pressure input of pressure transducer, the outfan of second check valve links to each other with the positive pressure input port of pressure transducer, the O mouth of first suction valve links to each other with the O mouth of second air bleeding valve, the bottom of barium bottle links to each other with the upper end of effluent-receiving flask by barium bottle dehydration valve, the A mouth of first air bleeding valve links to each other with the outfan of second check valve, its P mouth links to each other with the upper end of cleaning liquid bottle, the upper end of cleaning liquid bottle links to each other through the input of gas injection valve with second flushing valve, the syringe pipe that inserts the cleaning liquid bottle bottom links to each other through the input of first flushing valve with second flushing valve, above-mentioned parts, comprise connecting pipe and electrical control unit between them, form automatic colon radiography instrument jointly.

For the ease of sewage effluent, the present invention also can add sewage blow-down valve; In order to make the system gas pressure energy keep constant, so that each parts working stability, the present invention also can be provided with gas-storing bag.The connected mode of above-mentioned parts is: the bottom of said effluent-receiving flask is connected with sewage blow-down valve, and the P mouth of first air bleeding valve is connected with gas-storing bag.In addition, said three rectal tub is made up of house steward, threeway and two tail pipes, and house steward's front end has stomidium, and the front end side has side opening.

Compared with prior art, the present invention has following advantage:

1. has independently auto-pumping system

During colon radiography, for obtaining satisfied treatment effect, need to increase or reduce at any time barium, the tolerance of enteral, this not only needs instrument to annotate the barium gas injection to intestinal at any time, and needs instrument can be at any time that the agent of enteral barium, gas sucking-off is external.The instrument of existing design does not perhaps have pumping function completely, perhaps only can where come " suck-back " where.The instrument that does not have pumping function completely, Chang Keyin inject the barium agent of intestinal and too much cover focus; The instrument that has only " suck-back " function, the barium agent of injecting intestinal to be sucked out, in just can only sucked back barium bottle, this must cause the severe contamination of flow in pipes and barium bottle, first human, second just can not reuse, handle to such an extent that badly also can cause cross infection, as preventing cross infection, to check what patients at that time, must prepare what barium bottles and how many root pipes, in fact this be difficult to accomplish, promptly enable to accomplish, but handle a lot of barium bottles that are subjected to severe contamination afterwards again, this just also will bother than manual operations.

The present invention is provided with independently suction system, its suction approach separates fully with the injection approach, this not only makes the operator replenish or the minimizing contrast agent to intestinal at any time, obtaining best treatment effect, and can effectively prevent the pollution of barium bottle and flow in pipes, this just makes all pipelines and container except that anal canal, all become many patients' public equipment, the patient fully can be one by one use, and can not occur fully one personal, second just not reusable contamination phenomenon of people.

2. has unique instrument self rinse-system

The colon radiography instrument of existing design, all do not have instrument self rinse-system, the each inspection finishes, and the operator must take off artificial cleaning and sterilizing with barium bottle and various contaminated pipeline, again install to again during inspection on the machine, this is than adopting the manual radiography of traditional simple apparatus also will bother.

The present invention is reliability, convenience and a high efficiency of guaranteeing instrument, obviously alleviate medical workers, the spy is provided with unique instrument self rinse-system, this system has been arranged, the each inspection finishes, and all containers and pipeline all need not pull up artificial flushing, need only enable the automatic flush switch that is arranged on the main frame, the instrument that presets self flushing liquor will arrive the position that needs flushing rapidly according to instruction, finishes flushing process automatically.Through automatically flushing, except that pull up as disposable anal canal throw away, all pipeline and containers all intactly are connected on the machine, thereby make instrument be in good sanitary condition and upstate at any time all the time.

3. can accurately control injection rate and prevent that effectively enteral prods from backflowing

Accurately the control injection rate for colon radiography instrument, the most important thing is that in the time of need stopping to annotate barium, instrument can seal the pipeline that leads to intestinal immediately in annotating the barium process, makes the barium agent stop immediately flowing to intestinal.The angiographic instrument of existing design, after stopping to annotate the barium operation, the barium agent can not stop immediately to flowing of intestinal, equates just can stop but will arrive the interior pressure of intracolic pressure and barium bottle.The reason that this thing happens is, the angiographic instrument of existing design all will be annotated the barium control valve and be located on the pipeline between air compressor and the barium bottle.The method that enters the air-flow of barium bottle by blocking-up is controlled the barium dosage that enters intestinal indirectly.Adopt this control mode, when notes barium control valve was closed, though can stop high pressure draught to continue to flow to the barium bottle immediately, former established high pressure draught still can continue to push the barium agent to intestinal in the barium bottle.Because the instrument of existing design in use, is in connected state between barium bottle and the intestinal all the time, therefore, when inserting anal canal, because enteral pressure is higher than the barium bottle pressure, the phenomenon that the enteral flowing material backflows to barium bottle direction can appear also sometimes.Moreover, after notes barium stops,, just can the agent of enteral barium occur and in the barium bottle, backflow because the barium pressure of the inside of a bottle is lower than intestinal gradually as long as the barium bottle slightly leaks gas.These situations all can cause the pollution in barium bottle and titanate injecting barrel road, deal with improperly, will cause the cross infection between the patient.

The present invention changes traditional method for designing, directly control valve is located on the every pipeline that is communicated with anal canal, and which bar pipeline these control valves the blocking-up of the path of place pipeline, need open at ordinary times during work, and the control valve of which bar pipeline is just opened.Because having blocked those, control valve expands path between container (as barium bottle, self cleaning liquid bottle) and the intestinal, there is in the container high pressure draught to exist even expand, also can not there be barium agent or air to continue to flow to intestinal, enteral prods also can not occur and expand the phenomenon that container backflows to those, this has just fundamentally solved accurate control injection rate and has effectively prevented the problem that the enteral flowing material backflows.

The present invention has following accompanying drawing:

Fig. 1 automatic colon radiography instrument system forms sketch map

Fig. 2 flexible pipe electrodynamic valve structural representation

Fig. 3 mercury pressure sensor construction sketch map

Fig. 4 three rectal tub sketch map

The anal canal sketch map of Fig. 5 band air bag

Fig. 6 colon radiography instrument main frame sketch map

Fig. 7 cable controller sketch map

Fig. 8 infrared remote-control emitter sketch map

The external emitter sketch map of Fig. 9

Figure 10 Infrared Remote-Control Sending circuit diagram

Figure 11 infrared remote control receiving circuit sketch map

Figure 12 main circuit sketch map

Below in conjunction with accompanying drawing the present invention is described in further detail.

Fig. 1 forms sketch map for the automatic colon radiography instrument system, in fact, it can be described as one pneumatic, hydraulic control system, it constitutes all elements and is respectively the first suction control valve 80, effluent-receiving flask 19, sewage blow-down valve 81, effluent outfall 27, barium bottle dehydration valve 82, the second suction control valve 83, barium bottle 4, suction tube 28, annotate barium valve 84, first washing control valve 85, second washing control valve 86, ascending pipe joint 31, draft tube joint 29, three rectal tub 30, syringe pipe 87, ascending pipe 32, gas injection valve 89, instrument self cleaning liquid bottle 14, gas-storing bag 90, first air bleeding valve 91, second air bleeding valve 92, pressure transducer 93, second check valve 94, air compressor 95, first check valve 96, intake valve 97.Be connected with pipeline between above-mentioned all elements, automatically controlled device is connected with electrical control unit, forms automatic colon radiography instrument jointly.Operation principle of the present invention is as follows: air compressor 95 is power sources of the present invention, annotates barium, gas injection, suction, instrument self flushing, sewage discharge etc. and provides power by it.The direction of can only following the arrow check valve 94,96 control gases flows.The air that enters air compressor 95 is subjected to the first suction control valve 80 and intake valve 97 controls, and in annotating processes such as barium, gas injection, instrument self flushing and sewage discharge, this two valve makes the air-flow that enters air compressor 95 come from atmosphere; During suction, then make the gas source that enters air compressor 95 in effluent-receiving flask 19.First air bleeding valve 91 is the superpressure eduction valve, also is the only way which must be passed that leads to cleaning liquid bottle 14 and gas-storing bag 90, and when the machine internal pressure reached maximum limit pressure, this valve was descended pressure promptly to atmospheric exhaust.Second air bleeding valve 92 is introduced compressed air in the barium bottle 4 when annotating barium; When the barium bottle washes, the gas in the barium bottle 4 is arranged to the first suction control valve 80, arrange to atmosphere through intake valve 97 again.First suction control valve 80, the intake valve 97, first air bleeding valve 91, second air bleeding valve 92 all can adopt commercial two-position three way magnetic valve, Q23-XD type two-position three way pilot solenoid valve for example, and these four valves all are arranged on the pipeline of simple control pneumatic circuit.On the pipeline that controlling liquid is flowed through, then can adopt electrodynamic valve as shown in Figure 2, comprising sewage blow-down valve 81, barium bottle dehydration valve 82, the second suction control valve 83, notes barium valve 84, first washing control valve 85, second washing control valve 86 and gas injection valve 89.Be example now, sketch this 7 valve roles with the practical operation.Annotate barium: barium valve 84 is open, and second washing control valve 86 is open, and the barium agent in the barium bottle 4 enters colon through

valve

84,86, joint 31 and three rectal tub; Gas injection: gas injection valve 89 is open, and second washing control valve 86 is open, and the gas in the cleaning liquid bottle 14 enters colon through

valve

89,86, joint 31, three rectal tub 30; Suction: the second suction control valve 83 is open, and intracolic barium agent, gas are inhaled in the effluent-receiving flask 19 through three rectal tub 30, joint 29, valve 83; The far-end pipe flushing (closes the house steward of three rectal tub 30 earlier at the folder of position shown in the arrow with pliers 88, in case pipe flushing liquid enters intestinal): first flushing valve 85 is open, second flushing valve 86 is open, second suction valve 83 is open, instrument self flushing liquor in the cleaning liquid bottle 14 enters effluent-receiving flask 19 through

valve

85,86, joint 31, anal canal threeway, joint 29, valve 83, and contaminated suction channel is rinsed well; The far-end dehydration (is closed the house steward of three rectal tub 30 equally with pliers 88 folders, in case gas enters intestinal): gas injection valve 89 is open, second flushing valve 86 is open, second suction valve 83 is open, gas in the cleaning liquid bottle 14 enters in the effluent-receiving flask 19 through

valve

89,86, joint 31, anal canal threeway, joint 29, valve 83, thereby the hydrops in the suction tube is removed; The flushing of barium bottle: first flushing valve 85 is open, and it is open to annotate barium valve 84, and the liquid in the cleaning liquid bottle 14 enters barium bottle 4 through

valve

85,84, and the barium bottle is washed; The dehydration of barium bottle, gas injection valve 89 is open, and it is open to annotate barium valve 84, and barium bottle dehydration valve 82 is open, and the gas in the cleaning liquid bottle 14 enters barium bottle 4 through

valve

89,84, and the liquid in the barium bottle 4 is in valve 82 enters effluent-receiving flask 19, to remove hydrops in the barium bottle 4; Sewage discharge: barium bottle dehydration valve 82 is open, and sewage blow-down valve 81 is open, and gas enters barium bottle 4 through second air bleeding valve 92, enters effluent-receiving flask 19 through valve 82 again, and sewage is then outside valve 81, effluent outfall 27 discharge machines in the effluent-receiving flask 19.

The valve of conduit under fluid pressure of the present invention can adopt alligator clamp, distilled water folder or similar manual controller spare.For the ease of automatic control, the present invention has provided a kind of electrodynamic valve.The electrodynamic valve structural representation that the fluid break-make is used in the control flexible pipe that Fig. 2 provides for the present invention.Flexible pipe 64 is installed between depression bar 63 and the depression bar frame 62, and depression bar can adopt lever or frame depression bar.The both sides of frame depression bar 63 are passed depression bar frame 62 flexible pipe 64 are blocked, be provided with depression bar seat 70 below the depression bar 63, be provided with stage clip 65 between depression bar frame 62 and depression bar seat 70, be provided with the underframe 69 that is used to install electric magnet 67 below the depression bar frame 62, electric magnet 67 links to each other with depression bar seat 70 by push rod 68.Electric magnet can be made by oneself, also can select existing product for use, for example MFJ-3, MFJ-4.5 type AC solenoid for valve.In order to prevent that depression bar when motion from producing swing, between underframe and depression bar frame, be provided with depression bar positive stop 66.Its operation principle is: with must the control position elastic hose 64 be stuck in the depression bar 63 because the tension force of spring 65 makes loop bar 63 that the tube chamber of flexible pipe 64 is pressed off, thereby blocks the liquid communication at this place; When electric magnet 67 energising, electromagnet push-rod 68 outwards move, promotes flexible pipe depression bar seat 70, and with spring 65 compressions, the compressing of 63 pairs of elastic hoses 64 of flexible pipe compressing loop bar is removed, and elastic hose 64 tube chambers are opened, liquid this place's pipeline of can flowing through.

The advantage that designs above-mentioned control valve is: solved the control to liquid-working-medium smoothly.Any liquid medium in the colon radiography does not all allow directly to circulate in control valve, directly circulates in control valve and must cause pollution, obstruction, the corrosion of valve, loses switching capability, even causes circuit damage.And with liquid medium sealing in elastic hose, again by control valve, both solved the direct control of valve, any adverse effect of having avoided liquid medium to cause control valve again to liquid medium.

The pressure transducer 93 that uses among the present invention can be the same with prior art, adopts the pressure transducer of known solid piezoresistive transducer or other kind, and for example AKC2-63A, BP2 etc. also can adopt hydrargyrum differential manometer or similar parts.Yet the existing mercury pressure pick off that is used for radiography coloclysis instrument can only detect malleation, can not detect negative pressure; Hydrargyrum is excessive when preventing that instrument is inverted, be equipped with mercoid switch resemble the sphygomanometer, hydrargyrum is excessive when preventing that instrument is inverted, just must in advance switch cut out, with blocking-up hydrargyrum path, this has just brought the potential danger of maloperation under the mercoid switch closed condition, one and this situation occurs, the machine internal pressure will be out of control, and the unrestricted pressure that rises just may cause the perforation of patient's intestinal, causes lethal effect.For this reason, the present invention has provided a kind of new mercury pressure pick off, its structure is referring to Fig. 3, specifically comprise hydrargyrum storage tank 51, communicating pipe 49 and hydrargyrum 52, communicating pipes 49 upper end that links to each other with hydrargyrum storage tank 51 is provided with the anti-overflow groove 48 that prevents that hydrargyrum is excessive, anti-overflow groove 48 upper ends are provided with inserts its inner negative pressure input pipe 47, hydrargyrum storage tank 51 upper ends are provided with the malleation input pipe 50 of the portion of inserting into the inner, communicating pipes 49 the bottom-up base electrode 53 that is provided with relevant pressure less than 6kPa successively, relevant pressure is respectively the pressure of foundation control electrode 54 of 8KPa and 9KPa, 55, relevant pressure is the pressure control electrode 56 of 10KPa, relevant pressure is the valve open electrode 57 of 11KPa, relevant pressure is respectively 12KPa, 14KPa, the pressure control electrode 58 of 16KPa and 19KPa, 59,60,61.

The pick off positive and negative pressure that the present invention provides all can detect, owing to have the anti-overflow groove that prevents that specially hydrargyrum is excessive, and the lower end of positive and negative pressure input pipe is stretched into the inside of hydrargyrum storage tank and anti-overflow groove respectively, so no matter instrument is in any attitude, hydrargyrum all can be not excessive, thereby discarded mercoid switch, this just makes that whenever the hydrargyrum pipeline all is in connected state, has guaranteed that pick off is in reliable duty all the time.The existing instrument of pressure control of the present invention more reliably also finds expression in: pick off itself has not only participated in the composition of electrical equipment control pressurer system, also constituted the mechanicalness pressure relief system, its principle is just in case pressure control circuit is malfunctioning, the operator fails in time to find, still in blindly operation, at this moment, pressure will rise to the highest control point, surpass the highest control point, hydrargyrum will all be shifted onto to be prevented in the excessive storage tank of hydrargyrum, the negative pressure input of pick off good air vent, therefore as long as the maximum pressure control point is determined in safety range, just can avoid the dabbling danger of supertension.

Fig. 4, Fig. 5 are the two kind three rectal tub structural representations supporting with the present invention.Fig. 4 is the plain edition three rectal tub, is suitable for each age group and does colon radiography, and its primary structure comprises stomidium 71, side opening 72, house steward 73, threeway 74,

tail pipe

75,76; Fig. 5 is the three rectal tub of band air bag, be particularly suitable for the air enema diagnosis and treatment of intestinal intussusception, also be suitable for can not the partner double contrast radiograph, the main distinction between this anal canal and the plain edition three rectal tub shown in Figure 4 is, front end house steward has increased air bag 77, and afterbody has increased air sac sealing valve 78 and airbag inflation pipe 79.These two kinds of anal canals are inalienable parts of the present invention, and they are achieved some important performances of instrument.In use,

tail pipe

75,76 is linked to each other with suction tube 28, ascending pipe 32 by

joint

29,31 respectively.Since the present invention with anal canal house steward 73 as injection-sucking-off altogether through pipeline, but anal canal threeway 74 with closely will inject-suction extraction channel runs separates fully, its

tail pipe

75,76 has certain-length (it is long that the present invention respectively is decided to be 135mm with these two tail pipes) again, add these injection-suction extraction channel runs and be subjected to effective control of control valve as shown in Figure 2, therefore, guaranteed that fully ascending pipe 32 and joint 31 thereof in whole operating process, all can not be subjected to enteral prods and pollute; As for draft tube 28 and joint 29 thereof, in aspiration procedure, must be subjected to the pollution of enteral sucking-off material, but because the flow direction of its aspirate can only be towards the effluent-receiving flask direction, and can not backflow to flow in pipes through anal canal threeway place, therefore, when checking second patient, a three rectal tub need only be changed again, cross-contamination can be do not caused.In addition, before changing anal canal, can enable the far-end pipeline flushing device on the instrument, like this, when changing anal canal, operator's hands can not polluted yet.

For the use that makes angiographic instrument, control flexibly, convenient, the present invention is placed in all devices movably on the cart type main frame, the wired remote control of electrical control unit or Infrared Remote-Control Sending partly make portable remote controller (referring to Fig. 6～Figure 10).The colon radiography instrument of existing design perhaps only is convenient to the machine room operation, perhaps only is convenient to remote manipulation.For example " digitally controlled multifunctional medical instrument ", its main console switch all is located on the main frame, though also subsidiary remote controller has only an air pump starting switch on its remote controller, can not do any function conversion during remote manipulation, therefore, only is convenient to the machine room operation.And for example " automatic remote control double contrast radiograph enemator " then fully by the wired remote control operation, can not be operated at machine room.

The present invention fully according to the needs of practical operation, had both looked after with the X line machine with remotely controlling functional supportingly on control mode, looked after again and did not have the X line machine of remotely controlling functional supporting.Therefore, on switch was provided with, both requirement can remote manipulation for those, and the function key that requirement can the machine room operation is located on the hand-held infra-red remote control transmitter, without exception as long as hand-held transmitter just can be operated at any one again.This has just satisfactorily resolved the same topic of remote control and machine room dual operation function.For those function keys of pressing the necessary machine room operation of actual needs, then be located on the main frame without exception.

Fig. 6 is a main frame surface structure sketch map of the present invention.Its structure mainly contains: titanate injecting barrel 1, barium bottle seal cover 2, barium bottle air inlet pipe 3, barium bottle 4, barium bottle dehydrating tube 5, on and off switch 6, far-end pipe flushing key 7, far-end pipeline dehydration key 8, barium bottle flushing key 9, barium bottle dehydration key 10, sewage discharge key 11,12, instrument self cleaning liquid bottle seal bottle cap 13, instrument self cleaning liquid bottle 14,

roller

15,16,17,18, effluent-receiving flask 19,8kPa pressure of foundation display lamp 20,10kPa pressure indicator light 21,12kPa pressure indicator light 22,14KPa pressure indicator light 23,16kPa pressure indicator light 24,19kPa pressure indication beacon light 25, infra-red remote control receiver window 26, effluent outfall 27, suction tube 28, suction tube joint 29, three rectal tub 30, ascending pipe joint 31, ascending pipe 32.

Surface structure shows that main frame of the present invention is the go-cart type.Its advantage is to move lightly, and instrument is not placed on the X radiodiagnosis x bed, and the position of patient's position and X radiodiagnosis x bed thereof all can arbitrarily change in checking process, helps multi-faceted inspection, improves the diagnosis and treatment quality.Moreover this structure allows enough spaces and holds various control device, the automaticity of complete machine can be designed very high.In addition, this structure table top is succinct, can place relevant article during use temporarily, brings bigger convenience to operation.

Control of the present invention can be adopted the mode of wired remote control, as wired control mode of prior art.Fig. 7 has provided a kind of cable controller.

The present invention also can adopt wireless remote mode, for example the infrared remote control mode.Fig. 8, Fig. 9 have provided a kind of IR remote controller sketch map, and its primary structure comprises external emission socket 33, gas injection pressure control key 34,35,36,37, suction key 38, notes barium

pressure control key

39,40,41,42, this machine infrared emission tube 43, external infrared emission tube 44, external infrared ray emission lead 45, external infrared emission plug 46.

From the function setting of infra-red remote control transmitter, the present invention will annotate barium, gas injection, suction and corresponding pressure control key thereof and all be located on the emitter, and this just can satisfy whole needs of remote control angiographic procedure.The working environment of considering, on the wall between control room and the machine room, the lead glass position that infrared ray can see through is higher, the operator operates before being sitting in X line traffic control platform, the infrared ray wave beam of emission may be subjected to adiathermanous wall and block, therefore the ad hoc external discharger of infrared ray as shown in Figure 9 of having counted.The transmitting tube of this device can be fixed on the lead glass, also can establish a strut and fix on control station, and main frame is received as suitable its height in the machine room to make things convenient for.When need using this external discharger, as long as plug 46 is linked to each other with socket 33 on the emitter.At this moment, press the control key on the emitter, can pass through this machine transmitting tube 43, also can be by external infrared emission tube 44 to machine room emission remote signal, this has just strengthened the send-receive effect greatly.External emission plug 46 is pulled up from socket 33, emitter can be brought in the machine room operation.

Figure 10 is an infra-red remote control transmitter electrical schematic diagram of the present invention.The core parts of this circuit are three line concentration circuit, and wherein IC1:C334 is a 10-4 line encoder, and IC2:VD5026 is special infrared encoder, and IC3:CD4011 is the 4-2 input nand gate; Its operation principle is: represent the button SB1-SB9 of difference in functionality that signal is imported IC1 and encode, convert among the four parallel-by-bit sign indicating numbers input IC2 and encode once more, export from 17 feet of IC2 then, modulate by the modulation of infrared rays device that all doors of D2, D3, the D4 of IC3 and peripheral cell thereof are formed, carry out signal by VT again and amplify, launch by infrared emission tube VD10, VD11; When certain function key among the SB1-SB9 was pressed, corresponding high level signal made 14 feet of IC2 become low level through the door D1 who delivers to IC3 of switching diode VD1-VD9, and at this moment, 17 feet of IC2 are just exported corresponding serial code; When not having button, the output of the 17 foot no signals of IC2, IC3 does not work, and audion V1 is in cut-off state.

Figure 11 is an infrared remote control receiving circuit schematic diagram of the present invention.Its circuit core also is three integrated circuits (IC4, IC5, IC6), wherein IC4:CX20106 is special infrared pre-amplification circuit, IC5:VD5027 be with emitter in the paired special infrared decoder of VD5026, IC6:74LS145 is the decoding of 4-10 line, driver; Its operation principle is: infrared receiver diode VD12 delivers to IC4 with the signal of receiving, after IC4 and peripheral cell thereof are removed a series of processing such as noise, detection, integer to signal again, export the serial binary sign indicating number of process demodulation process from the 7th foot of IC4, decipher through IC5 again, drive corresponding relays action among the K1-K9, drive governor circuit work by corresponding relays again.K1-K10 is the midget relay with two groups of transfer contacts in the circuit, wherein self-locking and interlock circuit are formed in-2 contacts of K1 to K9, therefore, and when connecing down simultaneously on the remote controller a plurality of key, also have only that key of at first conducting to start to control making usefulness, thereby can not produce distant control function disorder and misoperation; K10 wouldn't work among the figure, and expanded function is used after only doing; Remote-control receiving circuit is by plug XP1-XP10 and the corresponding connection of socket XS1-XS10 in the governor circuit, and the The whole control circuit is combined together.

Figure 12 is a governor circuit schematic diagram of the present invention.This circuit mainly is made up of mu balanced circuit, sensing circuit, on-off circuit, signal circuit, arc-suppression circuit etc., wherein SB10 is a total power switch, SB11-SB14 is instrument self flushing, dehydration switch, SB15, SB16 are the sewage discharge switch, SP is the mercury pressure pick off, K14-K33 is a master relay, CA is an air compressor, YM1-YM11 is the electromagnetic valve in pneumatic, the hydraulic control circuit, H1 is a power supply indicator, H2-H7 is a pressure indicator light, and VD32-VD40 is a commutation diode, and SP is the mercury pressure pick off.C23-C36 is a relay contact arc extinguishing electric capacity.

Now the main circuit operation principle is summarized as follows:

Power connection: press power knob SB10, K14 (DJ)-1 conducting, the K14-2 conducting, the 220V control circuit is connected, and CA starts, YM1 (PF1) energising, YM2 (PF2) energising; When pressure rose to 9KPa, K30 (CYJ)-1 disconnected the CA stall; K30-2 introduces self-locking with the power supply of BKPa electrode; When pressure was lower than 8KPa, CA promptly started again.

Annotate barium, (is example with 14KPa pressure):

Press the 14KPa shelves and annotate the barium button, K27 (BJ)-1 conducting, YM6 (BF) is open; K27-2 disconnects, and CA starts; The K27-3 conducting, when pressure is raised to 10KPa, the K29-1 conducting, YM8 (CXF2) is open, and K29-2 will lead to the power supply introducing self-locking of K27, and when pressure rose to 14KPa, K16 (TJ) disconnected, the CA stall.

Gas injection: (being example still) with 14KPa pressure:

Press 14KPa retaining gas injection button, the K31-1 conducting, YM7 (QF) is open, K31-2 disconnects, CA starts, and the K31-3 conducting is when pressure rises to 10KPa, the K29-1 conducting, YM8 (CXF2) is open, and K29-2 will lead to the power supply introducing self-locking of K31, when pressure rises to 14KPa, K16 (TJ) disconnects, the CA stall.

Suction: (its negative pressure stuck-at-4KPa):

Press pumping button, K15 (CJ)-1 conducting, YM4 (CF2) is open, and YM3 (JQF) is open, and YM5 (CF1) is open; K15-2 disconnects, YM1 (PF1), YM2 (PF2) outage; K15-3 disconnects, and CA starts.

Far-end pipe flushing (its pressure fixing is at 16KPa):

Press far-end pipeline push button SB13, K21 (YCJ1)-1 disconnects, YM2 (PF2) outage, and YM4 (CF2) is open, YM5 (CF1) energising; K21-2 disconnects, YM3 (JQF) outage; K21-3 disconnects, and CA starts; K22 (YCJ2)-1 conducting, when pressure reaches 10KPa, K29 (CXFZJ)-1 conducting, YMB (CXF2) is open, the K29-2 conducting, the power supply that will lead to K21, K22 is introduced self-locking; The K22-2 conducting, when pressure reaches 11KPa, K26 (CXF1J)-1 conducting, YM9 (CXF1) is open, and K26-2 will lead to the power supply introducing self-locking of K21, K22; The K22-3 conducting, when pressure reached 16KPa, K16 disconnected, the CA stall.

Far-end pipeline dehydration (its pressure fixing is at 16KPa):

Press far-end pipeline dehydration button SB14, K23 (YTJ) action disconnects the circuit that the 11KPa electrode leads to K26 (CXF1J), connects the circuit that the 11KPa electrode leads to K31 (QJ) and K33 (QZJ); K21 (YCJ1)-1 action, YM2 (PF2) outage, YM4 (CF2) is open, YM5 (CF1) energising; K21-2 disconnects, YM3 (JQF) outage; K21-3 disconnects, and CA starts; K22 (YCJ2)-1 conducting, when pressure rises to 10KPa, K29 (CXF2J)-1 conducting, YM8 (CXF2) is open; The K29-2 conducting is introduced self-locking by VD37 with power supply; The K22-2 conducting is connected the 11KPa electrode jointly with K23 and is led to K31 (QJ), K33 (QZJ) circuit, when pressure rises to 11KPa, the K31-1 conducting, YM7 (QF) is open, the K33 conducting, to introduce towards K23 (YTJ) power supply, realize K31 (QJ), K33 (QZJ) self-locking; The K22-3 conducting, when pressure rose to 16KPa, K16 (TJ) disconnected, the CA stall.

Near-end pipe flushing (its pressure fixing is at 19KPa):

Press near-end push button SB11, K18 (JCJ)-1 action, YM2 (PF2) outage, YM6 (BF) is open; K18-2 disconnects, and CA starts; The K18-3 conducting, when pressure rises to 11KPa, K26 (CXF1J)-1 conducting, YM9 (CXF1) is open; The K26-2 conducting is introduced self-locking through VD34 with power supply; When pressure rose to 19KPa, K16 (TJ) disconnected, the CA stall; K32 (CPJ)-1 disconnects, YM1 (PF1) outage; K32-2 disconnects, YM3 (JQF) outage (when near-end washed, YM3 own just was in off-position, but quite different when suction).

Near-end pipeline dehydration (its pressure fixing is at 19KPa):

Press near-end pipeline dehydration button SB12, K19 (JTJ1)-1 conducting, YM10 (BTTF) is open, and K19-2 disconnects, YM2 (PF2) outage; The K19-3 action.YM5 (CF1) energising; K20 (JTJ2)-1 disconnects, and CA starts; The circuit that the 10KPa electrode leads to K17 (BFJ) is connected in the K20-2 conducting, when pressure rises to 10KPa, and the K17-1 conducting, YM6 (BF) is open, and the K17-2 conducting will be introduced self-locking towards the power supply of K19, K20; The circuit between 11KPa electrode and the K25 (QFJ) is connected in the K20-3 conducting, when pressure rises to 11KPa, and K25 (QFJ)-1 conducting, YM7 (QF) is open; The K25-2 conducting will be introduced self-locking towards the power supply of K19, K20; When pressure rose to 19KPa, K16 (TJ) disconnected, the CA stall; K32 (CPJ)-1 disconnects, YM1 (PF1) outage; K32-2 disconnects, YM3 (JQF) outage (when near-end dewatered, YM3 own just was in off-position, but quite different when suction).

Sewage discharge:

Press sewage discharge button SB15 and SB16 simultaneously, K24 (WPJ)-1 conducting, YM11 (WPF) is open; K24-2 disconnects, and CA starts; The circuit between 10KPa electrode and the K28 (BTFJ) is connected in the K24-3 conducting, when pressure rises to 10KPa, and K28 (BTFJ)-1 conducting, YM10 (BBTF) is open; The K28-2 conducting will be introduced self-locking towards the power supply of K24; When pressure rose to 19KPa, K16 (TJ) disconnected, the CA stall, and K32 (CPJ)-1 disconnects, YM1 (PF1) outage, K32-2 disconnects, YM3 (JQF) outage.

Be example with the practical operation now, the invention will be further described:

If the patient has first, second two people, first is the adult, and second is three years old child;

The barium bottle seal cover 2 of outwarding winding adds the barium liquid that modulates in the bottle, screws bottle cap again, makes it air tight; Instrument self the cleaning liquid bottle seal cover 13 of outwarding winding is filled it up with flushing liquor (available sterile saline, distilled water etc.) in advance in bottle, screw bottle cap, makes it air tight; Check patient's first earlier:

Two tail pipes of plain edition double contrast radiograph pipe are connected respectively on injection, the draft tube joint 29,31, for the patient inserts good anal canal;

(can hear slight compressor start sound this moment, and the expression instrument is carrying out the air pressure deposit, when the air pressure deposit reaches 9KPa to turn on the power switch 6, compressor operating just stops automatically), the operator leaves machine room and enters the control room, opens X line machine, by monitor observation and inspection situation;

Annotate barium: the operator is with the front end of remote control transmitter main frame direction in the machine room, press some notes barium pressure control keys on the emitter, for example press 12KPa key 40, infrared ray receiver window 26 receives and annotates the barium signal on the main frame, air compressor 95 starts immediately, barium valve 84 is open immediately, and gas enters barium bottle 4 through intake valve 97 → check valve 96 → air compressor 95 → check valve 94 → the second air bleeding valves 92; When pressure transducer 93 detected 10KPa pressure, even second flushing valve, 86 energisings are open, the barium agent was promptly passed through electrically-controlled

valve

84,86 from barium bottle 4, enters colon through three rectal tub 30 again; When pressure rose to 12KPa, pick off immediate command air compressor 95 shut down, and pressure is lower than 12KPa, and air compressor is starting again again, goes round and begins again, to keep constant compression force; If the barium amount is sufficient in the enteric cavity, release button, electrically-controlled

valve

84,86 can be closed immediately, and air compressor 95 can shut down immediately, annotates barium and promptly can stop automatically;

Gas injection: press certain the gas injection key on the remote controller, when for example pressing 10KPa gas injection key 37, main frame infrared ray receiver window 26 promptly can be received the gas injection signal, air compressor 95 starts immediately, air valve 89 is open immediately, gas enters cleaning liquid bottle 14 through intake valve 97 → the first check valves 96 → air compressor 95 → the second check valves 94, when the machine internal pressure reached 10KPa, even second flushing valve, 84 energisings are open, gas entered colon through this valve by three rectal tub, simultaneously, when pressure was raised to 10KPa, pick off 93 immediate command air compressors 95 shut down, when pressure is lower than 10KPa, compressor 95 starts again again, to keep constant pressure;

Suction: if think that the interior barium agent of enteric cavity is too much, when needing to reduce the barium amount, can press suction key 38, press this key, infrared ray receiver window 26 on the main frame receives the suction signal, air compressor starts immediately, the first suction control valve 80 and the second suction control valve 83 are open immediately, intracolic barium agent enters effluent-receiving flask 19 through anal canal 30 → suction tube 28 → the second suction control valves 83, and air is just arranged to atmosphere through first suction valve, 80 → intake valve, 97 → the first check valves, 96 → air compressor, 95 → the second check valves, 94 → the first air bleeding valves 91 in the effluent-receiving flask; The negative pressure control of suction is fixed on negative 14KPa retaining, when pressure transducer detects negative 14KPa pressure, promptly can order air compressor 95 to shut down, and when the not enough 14KPa of negative pressure, air compressor starts again immediately, to keep constant negative pressure;

In whole checking process, to annotate barium, gas injection, aspirate these control sequences and can adopt arbitrarily, arbitrarily combination is to reach best treatment effect.

Far-end pipe flushing: first patient's complete inspection is finished, the examiner gets back to machine room from the control room, before pulling out anal canal, closing the anal canal house steward with pliers apart from three commensurability 3cm places folder earlier, press the far-end flushing key 7 on the host panel then, air compressor 95 starts immediately, and first suction valve 80, second suction valve 83 are open immediately, and air compressor 95 is pressed to instrument self rinsing bottle 14 with gas; When pressure transducer 94 detects 10KPa pressure, even second flushing valve, 86 energisings are open, when pressure rises to 11KPa, even first flushing valve, 85 energisings are open, the liquid in the cleaning liquid bottle 14 just enters effluent-receiving flask through first flushing valve 85, second flushing valve 86, joint 31, anal canal threeway, joint 29, second suction valve 83; Momentariness, the white barium sulfate complete obiteration in promptly visible those transparent pipelines is replaced by the flushing liquor of infusing clearly, and can stop flushing this moment;

The dehydration of far-end pipeline: the far-end pipeline is after flushing, be full of flushing liquor in the tube chamber, at this moment, press far-end pipeline dehydration button 8 on the main frame, intraluminal hydrops can be removed, its process is: second suction valve 83 is at first open, second flushing valve 86 is open subsequently, gas injection valve 89 is open at last, air compressor is pressed to gas in the cleaning liquid bottle 14, and gas enters effluent-receiving flask 19 through gas injection valve 89, second suction valve 83 again, and the hydrops in the whole far-end pipeline just is eliminated, at this moment, anal canal can be pulled up from ascending pipe and suction tube joint; Through washing like this and processed, when pulling out anal canal, no sewage overflows, to operator itself, to instrument, to checking that table top all can not pollute.

Reexamine patient's second, because of second is three years old child, may be uncooperative when considering inspection, therefore adopt the three rectal tub of band air bag as shown in Figure 7, in case anal canal skids off external and the pollution table top is discharged in the barium agent; Insert good anal canal, and with airbag aeration with after carrying out the rectum sealing, the operator enters the control room, the overall process by the remote controller complete operation under the X line;

Check out patient's second, inspection work this time just is all over, next is exactly self washing of making instrument; The flushing of this moment had both comprised the flushing to the far-end pipeline, also comprised the cleaning to near-end pipeline and barium bottle; As for washing the distal tube road earlier, still wash the barium bottle earlier, be to dewater earlier or first flushing, can freely select by the operator, only do one herein for example:

(1) with pliers pressing from both sides and close the anal canal house steward apart from three commensurability 3cm places, anal canal is extracted in patient's body;

(2) dehydration in advance all is discharged into the barium liquid in barium bottle 4, ascending pipe 32 and the suction tube 28 in the effluent-receiving flask 19 in advance, and then with the flushing liquor flushing, like this, can obviously reduce expending of flushing liquor; Its method is that far-end dehydration key 8 on the main frame and 10 gradation of near-end dehydration key are pressed (noting: can not press simultaneously, in order to avoid cause dysfunction); Now the principle with the dehydration of barium bottle makes a presentation: press near-end dehydration key 10, air compressor 95 starts, barium bottle dehydration control valve 82 is open, compressed air arrives in instrument self cleaning liquid bottle 14 through second check valve, 94 → the first air bleeding valves 91, enter in the barium bottle 4 through air valve 89, barium valve 84 again, barium agent in the barium bottle is pressed in the effluent-receiving flask 19 through barium bottle dehydration valve 82; Press far-end flushing key 7 and near-end flushing key 9 more respectively, and enable far-end dehydration key 8 and near-end dehydration key 10 respectively, can will be infected with the whole pipelines and the barium bottle of barium agent rapidly and rinse well, reach hygienic requirements, and three rectal tub be pulled up done disposable use processing at last;

(3) sewage discharge: soil pipe 27 is placed sewage discharge place (as sewer, spittoon etc.), refer to press simultaneously sewage discharge button 11,12 with two, sewage blow-down valve 81 is open immediately, air compressor 95 just is pressed into the barium bottle with gas through second air bleeding valve 92), enter effluent-receiving flask 19 through barium bottle dehydration valve 82 again, with sewage in the bottle outside sewage blow-down valve 81 and effluent outfall 27 discharge machines; If need row flushing effluent-receiving flask again, as long as row is enabled near-end flushing, near-end dehydration and sewage discharge button again.

In sum, the present invention is that a kind of light harvesting is learned, machinery, electronic technology is in the new medical colon radiography instrument of one, this instrument both can be carried out the compartment remote manipulation easily, can carry out the machine room operation again easily, can in the trend intestinal, annotate barium, gas injection, automatic long-pending barium with enteral, the gas sucking-off is external, can effectively avoid the pollution of instrument, effectively avoid cross infection, can be automatic, control positive/negative pressure reliably, accurately control injection rate, can show positive/negative pressure automatically, automatically send acoustic signal, can also carry out self flushing the parts that instrument itself needs to clean, and can automatic sewage effluent.This instrument can be continuously, efficiently the patient is carried out batch inspection, when changing the patient, need only change an anal canal.Except that being used for colon radiography, also can be used for treating children intussusception, success rate reaches more than 95%.

Claims

1. automatic colon radiography instrument, comprise air compressor machine (95), pressure transducer (93), barium bottle (4), cleaning liquid bottle (14), effluent-receiving flask (19), three rectal tub (30), pipe joint, check valve, electromagnetic valve, electrodynamic valve and corresponding connecting pipe, electrical control unit, the positive pressure side that it is characterized in that said air compressor machine (95) links to each other with the P mouth of second air bleeding valve (92) by second check valve (94), the A mouth of second air bleeding valve (94) links to each other with the upper end of barium bottle (4), the ascending pipe (32) that inserts barium bottle bottom is through annotating barium valve (84), second flushing valve (86), ascending pipe joint (29) links to each other with the injection end of three rectal tub (30), the aspiration end of three rectal tub (30) is through suction tube joint (29), second suction valve (83) links to each other with the upper end of effluent-receiving flask (19), the P mouth of upper end first suction valve (80) of effluent-receiving flask (19), the A mouth, the P mouth of intake valve (97), the A mouth, first check valve (96) links to each other with the negative pressure end of air compressor machine (95), the A mouth of first suction valve (80) links to each other with the negative pressure input (47) of pressure transducer (93), the outfan of second check valve (94) links to each other with the positive pressure input port (50) of pressure transducer (93), the O mouth of first suction valve (80) links to each other with the O mouth of second air bleeding valve (92), the bottom of barium bottle (4) links to each other with the upper end of effluent-receiving flask (19) by barium bottle dehydration valve (82), the A mouth of first air bleeding valve (91) links to each other with the outfan of second check valve (94), its P mouth links to each other with the upper end of cleaning liquid bottle (14), the upper end of cleaning liquid bottle (14) links to each other through the input of gas injection valve (89) with second flushing valve (86), the syringe pipe (87) that inserts cleaning liquid bottle (14) bottom links to each other through the input of first flushing valve (85) with second flushing valve (86), above-mentioned parts, comprise connecting pipe and electrical control unit between them, form automatic colon radiography instrument jointly.

2. automatic colon radiography instrument according to claim 1, the bottom that it is characterized in that said effluent-receiving flask (19) is connected with sewage blow-down valve (81), the P mouth of first air bleeding valve (91) is connected with gas-storing bag (90), said three rectal tub (30) is made up of house steward (73), threeway (14) and two tail pipes (75,76), house steward's (73) front end has stomidium (71), and the front end side has side opening (72).

3. automatic colon radiography instrument according to claim 2 is characterized in that last the adding of said three rectal tub (30) has gas tube (79), and the front end of gas tube is provided with air bag (77), and its rear end is provided with seal valve (78).

4. according to claim 1 or 2 or 3 described automatic colon radiography instruments, it is characterized in that said notes barium valve (84), gas injection valve (89), first flushing valve (85), second flushing valve (86), sewage blow-down valve (81), second suction valve (83) and barium bottle dehydration valve (82) adopt by depression bar (63) and depression bar frame (62) and control flexible pipe (64) break-make between the two and the electrodynamic valve formed, the both sides of frame depression bar (63) are passed depression bar frame (62) flexible pipe (64) are blocked, be provided with depression bar seat (70) below the depression bar (63), between depression bar frame (62) and depression bar seat (70), be provided with stage clip (65), be provided with the underframe (69) that is used to install electric magnet (67) below the depression bar frame (62), electric magnet (67) links to each other with depression bar seat (70) by push rod (68).

5. according to claim 1 or 2 or 3 described automatic colon radiography instruments, it is characterized in that said pressure transducer (93) comprises hydrargyrum storage tank (51), communicating pipe (49) and hydrargyrum (52), communicating pipe (49) upper end that links to each other with hydrargyrum storage tank (51) is provided with the anti-overflow groove (48) that prevents that hydrargyrum is excessive, anti-overflow groove (48) upper end is provided with inserts its inner negative pressure input pipe (47), hydrargyrum storage tank (51) upper end is provided with the malleation input pipe (50) of the portion of inserting into the inner, communicating pipe (49) the bottom-up base electrode (53) that is provided with relevant pressure less than 6KPa successively, relevant pressure is respectively the pressure of foundation control electrode (54 of 8KPa and 9KPa, 55), relevant pressure is the pressure control electrode (56) of 10KPa, relevant pressure is the valve open electrode (57) of 11KPa, relevant pressure is respectively 12KPa, 14KPa, the pressure control electrode (58 of 16KPa and 19KPa, 59,60,61).

6. automatic colon radiography instrument according to claim 4, it is characterized in that said pressure transducer (93) comprises hydrargyrum storage tank (51), communicating pipe (49) and hydrargyrum (52), communicating pipe (49) upper end that links to each other with hydrargyrum storage tank (51) is provided with the anti-overflow groove (48) that prevents that hydrargyrum is excessive, anti-overflow groove (48) upper end is provided with inserts its inner negative pressure input pipe (47), hydrargyrum storage tank (51) upper end is provided with the malleation input pipe (50) of the portion of inserting into the inner, communicating pipe (49) the bottom-up base electrode (53) that is provided with relevant pressure less than 6KPa successively, relevant pressure is respectively the pressure of foundation control electrode (54 of 8KPa and 9KPa, 55), relevant pressure is the pressure control electrode (56) of 10KPa, relevant pressure is the valve open electrode (57) of 11KPa, relevant pressure is respectively 12KPa, 14KPa, the pressure control electrode (58 of 16KPa and 19KPa, 59,60,61).