CN87208231U - Microwave endoscope treatment instrument - Google Patents

Abstract

The utility model relates to microwave endoscope therapeutic instrument for stanching safely and quickly for the haemorrhage of stomach and intestinal tract and removing polypus, comprising a control part a safe timing device JSB, a power part, a microwave generator (magnetrons), a circuit protective device, a micro-wave output system and a microwave antenna head. The utility model has the function of stanching safely and quickly for the haemorrhage of stomach and intestinal tract and removing polypus, because of the preliminary clinical application, and the effect is good.

Description

Microwave endoscope treatment instrument

The utility model relates to a kind of stomach, intestinal bleeding of being mainly used in stops blooding safely and fast and burns and remove the microwave endoscope therapeutic instrument of polyp.

Prior art mainly is made up of major parts such as control, power supply, microwave source and antenna radiators.Because microwave and infrared, ultrashort wave etc. are relatively, it has darker penetration power, can accelerate blood circulates and advantage such as irradiation treatment.Yet it is confined to form of irradiation, high-powerly also can only carry out diathermanous treatment even add, and it can't carry out hemostasis to inner chamber, the treatment functions such as removing polyp of burning.

The purpose of this utility model is the problem at above-mentioned existence, proposes a kind of stomach, intestinal bleeding of can be used for and stops blooding safely and fast and burn and remove the microwave endoscope therapeutic instrument of polyp.

Technical solution of the present utility model and action principle thereof: basic structure is made up of control section and safe timing means JSB thereof, power pack, microwave generator (magnetron), the first-class institute of go in ring protector and microwave output system and special microwave antenna.Control section refers at power supply two ends serial connection Zero-point switch K ₁, two key switch AN ₁And AN ₂, the g-load relay J ₂And interchange contact-relay J ₁, and with display lamp ZD ₁Be in parallel; Safe timing means JSB mainly adopts the integrated circuit JEC-2B of highly sensitive low-power consumption ₂As triggering and driver element, control the contact with the contact of the small-sized middle power relay J of JZX-2F as output, they are serially connected in transformator B ₁Primary side AA and transformator B ₂Primary side BB between; Power supply: pressure regulator BT is serially connected between the 220V input voltage, the outfan of pressure regulator BT and transformator B ₁elementaryly join, magnetron heater transformator B ₂Secondary end and magnetron G ₅Filament join; Microwave output system and special microwave antenna head: by coaxial fitting A ₁, be the coaxial patch plug of 50 Ω N types of standard, be used for connecting microwave magnetron delivery and coaxial cable, standard 50 Ω coaxial cable A ₂, be used for Transmission Microwave, circulator A ₃Have three branches (11; 22; 33); be input to a certain ramose microwave; can only pass to another branch with the direction of going in ring counterclockwise; as 11 termination magnetrons input microwave; make 22 ends through circulator, the echo from 22 ends reflect can only pass to 33 ends; at the full matched load of 33 terminations; just can not get back to 11 ends, this has just protected the steady operation of magnetron, even the serious mismatch of 22 ends; do not damage magnetron yet; the technical specification that can reach is that the forward decay should be less than 0.5 decibel, and reverse attenuation should be greater than the 20-30 decibel, and standing-wave ratio should be no more than 1.25 less than 1.05 maximums; working band is wide, and frequency range is at 2450 ± 50MH _Z, bear more than the power 300W circulator A ₃Be exactly go in ring protector, standard 50 Ω transit joint A ₄, be used for standard 50 Ω coaxial cables carry out the transition to diameter only for the coaxial cable of 2.5mm, by the special thin coaxial cable A that transmits microwave of endoscope movable detecting hole ₅, it requires diameter less than 2.5mm, bears more than the power 300W, and is high temperature resistant more than 200 ℃, and its length is that the length that is used to control stomach is 1600mm, and the length that is used to control intestinal is 2000mm, a special antenna treatment A ₆, hollow and coaxial inner conductor link into an integrated entity in it, adopt the red copper material to guarantee the conversion of good power delivery and heat, to be used for its end of hemostatic A ₇, be the knob shape, seven parts such as tip body of removing polyp that are used for burning are formed.Its action principle: as key switch AN ₁Close, filament begins preheating, simultaneously low pressure display lamp ZD ₁Bright, the adjusting knob of pressure regulator BT is transferred to zero-bit, make Zero-point switch K ₁Closing, treat to transfer BT after the preheating about 3 minutes, by silicon rectifier BG(1-4) negative high voltage after the rectification is added to magnetron G ₅Negative electrode on, the plus earth of magnetron, this moment HT pilot ZD ₂Bright, when negative high voltage reached starting of oscillation numerical value, magnetron was just started working.Transfer BT to arrive required magnitude of power again, its watt level is by ammeter CB(MA table), the output of magnetron is by circulator A ₃, coaxial output cable and active antenna head are treated affected part.Overcurrent protective device mainly is to utilize the g-load relay J ₂, it is serially connected with magnetron G ₅Outfan and ammeter CB between, when the anode current of magnetron surpasses rating number, KJ ₂Disconnect J ₁Quit work KJ ₁Just disconnect, cutoff high, the protection magnetron does not make damage, with the g-load relay J ₂Semi-fixed resistance R in parallel ₃Be in order to regulate J ₂Cross charged current, capacitor C ₁Be J ₂Bypass condenser.Blower fan D is magnetron cooling usefulness.After treatment finishes, recall to zero-bit to pressure regulator BT, press switch AN ₂, then to cut off the electricity supply, instrument quits work.Timing means utilizes the electric capacity charging time-delay principle of RC network, with the integrated circuit JEC-2B of highly sensitive low-power consumption ₂As triggering and driver element, the contact is controlled as output in contact with the small-sized middle power relay of JZX-2F, after the relay energized, the voltage of timing capacitor raises in time gradually, when reaching the motivation value of integrated circuit, thereby make integrated circuit drive output relay, switch external circuits and reach the time-delay purpose.Binding post D ₁, D ₈Be that 220V(exchanges) input, D ₅, D ₆For ※ inserts high-tension transformer B ₁In one end loop of input, after the safe timing of regulation arrives, terminal D ₅, D ₆Disconnect D ₆, D ₇Connect, and D ₆, D ₇Two ends are to receive " jingle " alarm device, in case timing is reminded the doctor who is operating to just connecting alarm device.

Accompanying drawing 1 is a block diagram of the present utility model.

Accompanying drawing 2 is electrical schematic diagrams of the present utility model.

Accompanying drawing 3 is JSB safety timing means electrical schematic diagrams.

Accompanying drawing 4 is microwave output system and special treatment head.

A in the accompanying drawing 1 is that control section and safe timing means, B are that power supply, C are that microwave generator (magnetron), D are that go in ring protector, E is microwave output system and special microwave antenna head.

AN in the accompanying drawing 2 ₁Be key switch 1, AN ₂Be key switch 2, R ₃Be that semi-fixed resistance CT is binding post, K ₁Be Zero-point switch, J ₁Be that model is J27 relay, J ₂Be that model is J ₅₂₂Relay, ZD ₁Be display lamp, D ₁Be that aerofoil fan, BT are pressure regulator, B ₁Be that model is B _2000V, 0.3A/220V transformator, B ₂Be B _5V, 5A/220V transformator, G _1-4Be silicon stack, G ₅Be that magnetron, CB are a milliampere ammeter, K ₂It is foot switch.

※ in the accompanying drawing 3 is safe timing means lug, D ₅, D ₆, D ₇Be binding post, JEC-2B ₂The integrated circuit that is highly sensitive low-power consumption is as triggering and driver element.

A in the accompanying drawing 4 ₁Be coaxial fitting, A ₂Be standard 50 Ω coaxial cables, A ₃Be circulator, A ₄Be standard 50 Ω transit joints, A ₅Be special thin coaxial cable, the A that transmits microwave by endoscope movable detecting hole ₆It is special antenna treatment head.

Accompanying drawing 5 is circulator A ₃Structure chart, have three branches 11,22,33,

Embodiment: power 20-200W, output frequency 2450MHz, the long 1.6-2.0m of concentric conductor, external diameter 2.5mm.Conductor wire end specialty metal end device, scope: homemade gastroscope XS-4, medicine: magnetic Formotal and heparin.

As follows with this utility model to dog gastric mirror biopsy wound hemorrhage and hemostatic result:

Microwave bleeding after No. six hemorrhage naturally microwave bleeding heparinizations

Nature bleeding time time

1 1′50″ 40～60×10″ >3′ 40～60×10

(mA) (mA)

The hemostasis immediately of hemostasis immediately

2 1′40″ ＂ ＂ 40～60×10′

～15′

Hemostasis immediately

3 1′10″ ＂ ＂ ＂

4 1′30″ ＂ ＂ ＂

Microwave bleeding after the hemorrhage naturally microwave bleeding heparinization of large size

Nature bleeding time time

5 1′ 40～60×10″ >3′ 40～60×10″

The hemostasis immediately of hemostasis immediately

6 1′50″ ＂ ＂ ＂

7 1′40″ ＂ ＂ ＂

8 1′30″ ＂ ＂ ＂

9 1′45″ 4～80×4～9″ 4～80×4～9″

The hemostasis immediately of hemostasis immediately

10 2′ ＂ ＂ ＂

11 1′35″ ＂ ＂ ＂

Time is all 10 " plays effect with interior

As seen, this utility model can reach the hemostasis purpose under scope in the experiment, even under the situation of heparinization, microwave still can play the effect of coagulation.From pathological section, microwave is only in top layer mucosa generation consolidation and deep layer does not have special change, this may be relevant with the applied microwave amount, but also is to confirm that its therapeutic dose is safe, can supply clinic trial, its suitable microwave amount 60-80MA.

Applied microwave treats acute activeness upper gastrointestinal hemorrhage by scope (XS-4, FG-34JA) and pipe intestinal polyp is feasible.Particularly wide base or the subzone polyp to snare TURP difficulty has than sound value.

Acute hemorrhage of upper gastrointestinal tract, acute active hemorrhage person's 4 examples of micro-wave therapeutic under the scope, applied microwave 80MA * 10 " * 2 times; 60MA * 10 " * 4 times, " the satisfied haemostatic effect of * 2 acquisitions, in the therapeutic process, the patient does not have any discomfort sensation in 70MA * 3.

Micro-wave therapeutic pipe intestinal polyp totally 13 examples under the scope, its result is as follows:

During the micro-wave therapeutic polyp, because gastrointestinal peristalsis, solidify head and be difficult for fixingly,, disappear substantially as fixing appropriate curdled appearance of promptly seeing that polyp pushes up or base portion is white in color for 1-2 time or polyp so the treatment number of times is more sometimes.There is 1 example not disappear in 13 examples, remakes micro-wave therapeutic through the check polyp, the polyp disappearance, polyposis intestinalis has 2 examples for multiple, has carried out the continuous microwave treatment, and it is very convenient to observe treatment satisfaction at that time, and the patient does not all have uncomfortable in the process of receiving treatment.

Claims (6)

1, a kind of microwave endoscope therapeutic instrument of being made up of control section, power pack, microwave source is characterized in that being made up of safety timing means JSB, go in ring protector and microwave output system and special microwave antenna head.

2, microwave endoscope therapeutic instrument according to claim 1 is characterized in that control section is meant at power supply two ends serial connection Zero-point switch K ₁, two key switch AN ₁And AN ₂, the g-load relay J ₂And contact-relay J ₁, and with display lamp ZD ₁Be in parallel.

3, microwave endoscope therapeutic instrument according to claim 1 is characterized in that safe timing means has adopted the integrated circuit JEC-2B of highly sensitive low-power consumption ₂As triggering and driver element, and with JZX-2F small-sized in the contact of power relay J as output control contact, they are serially connected in transformator B ₁Primary side AA and transformator B ₂Primary side BB between.

4, microwave endoscope therapeutic instrument according to claim 1 is characterized in that microwave output system is by coaxial fitting A, standard 50 Ω coaxial cable A ₂, circulator A ₃, standard 50 Ω transit joint A ₄, thin coaxial cable A ₅, special microwave antenna head A ₆And treatment end A ₇Form.

5, according to claim 1,4 described microwave endoscope therapeutic instruments, it is characterized in that circulator A ₃Be exactly the protector that goes in ring, it is made up of by counterclockwise going in ring 11,22,33 in three branches.

6, according to claim 1,4 described microwave endoscope therapeutic instruments, it is characterized in that treating end A ₇Be exactly special microwave antenna head, interior hollow and coaxial inner conductor link into an integrated entity.

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