CN102350003B - Hydrogen peroxide low-temperature sterilizing equipment and use method thereof - Google Patents
Hydrogen peroxide low-temperature sterilizing equipment and use method thereof Download PDFInfo
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- CN102350003B CN102350003B CN201110332486.5A CN201110332486A CN102350003B CN 102350003 B CN102350003 B CN 102350003B CN 201110332486 A CN201110332486 A CN 201110332486A CN 102350003 B CN102350003 B CN 102350003B
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 217
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 134
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000006200 vaporizer Substances 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 11
- 230000008016 vaporization Effects 0.000 claims description 8
- 238000009834 vaporization Methods 0.000 claims description 7
- 230000035611 feeding Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 abstract 1
- 229960002163 hydrogen peroxide Drugs 0.000 description 59
- 230000009286 beneficial effect Effects 0.000 description 16
- 239000011148 porous material Substances 0.000 description 14
- 238000009434 installation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 210000000281 joint capsule Anatomy 0.000 description 10
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The invention discloses hydrogen peroxide low-temperature sterilizing equipment and a use method thereof. The sterilizing equipment comprises a cavity body (1), an evaporator (5), a liquid feeder (6), a vacuum pump (7), a heater (8) and a high-efficiency filter (16), wherein the cavity body (1) is divided into a sterilizing cavity (18) and a transition cavity (19); the sterilizing cavity (18) is connected with the outlet end of the evaporator (5) through a sterilizing valve (9); the inlet end of the evaporator (5) is connected with the liquid feeder (6) through a liquid feeding valve (11); a heating sheet is arranged on the evaporator (5); the air suction end of the vacuum pump (7) is connected with the sterilizing cavity (18) through a vacuum valve (13); and the air outflow end of the vacuum pump (7) is connected with a decomposition filter (17). The sterilizing equipment can sterilize medical appliances at a low temperature, can carry out sufficient sterilization on the pipelines of the medical appliances with slender holes, and can also carry out filtration and decomposition on the used hydrogen peroxide vapor.
Description
Technical field
The present invention relates to a kind of bactericidal unit, relate in particular to a kind of hydrogen peroxide that adopts to medical apparatus and instruments carry out disinfection low-temperature sterilization equipment and the using method thereof of sterilizing, belong to the medical apparatus sterilizing field that learns a skill.
Background technology
At medical domain, the sterilization of medical apparatus and instruments is particularly important, current tool advantage and the most universal medical apparatus sterilizing sterilization method are for adopting the hydrogen peroxide sterilizing that carries out disinfection, for improving sterilization effect, shorten sterilization time, reducing sterilizing cost, conventionally all need to adopt the mode of heating or ionization hydrogen peroxide liquid is vaporized or plasma after, again to the medical apparatus and instruments sterilizing that carries out disinfection, at present, the Sterilization and Disinfection Equipment of hydrogen peroxide vaporization or plasma has become the first-selected device of medical apparatus sterilizing sterilizing.The advantage of existing hydrogen peroxide plasma sterilizing installation is that sterilization effect is good, sterilization time is short, shortcoming is that equipment cost is high, price is expensive, and before sterilizing, also need first medical apparatus and instruments to be carried out to dried, use trouble, when sterilizing, can cause the color change of part medical apparatus and instruments simultaneously.The advantage of existing hydrogen peroxide vaporization sterilizing installation is that cost is low, price is cheap, sterilization effect is good; The patent of invention that is 200580040368.X as China Patent No. discloses " hydrogen peroxide vapor sterilization device and use the sterilizing methods of this device ", this disclosure of the invention a kind of hydrogen peroxide that uses in reactor article are carried out to the device and method of sterilizing, reaction vessel interior space keeps below the vacuum pressure condition of hydrogen peroxide equilibrium vapour pressure; Reactor inner space temperature is heated to 30-60 ℃; Hydrogenperoxide steam generator is injected into the inner space of reactor; By the hydrogen peroxide evaporation in reactor; The inner space of sealed reactor also remains on article in the steam ambient of hydrogen peroxide; Then extraneous gas is imported in the inner space of reactor, the pressure of inner space is increased to the predetermined value that is not more than normal atmosphere, use the method and device under low-temp low-pressure state, hydrogen peroxide to be vaporized, to reach sterilization effect.
But all there is such deficiency in other hydrogen peroxide vaporization sterilizing installations of the method and prior art: can not carry out abundant sterilizing jointly to having the inner-walls of duct of the medical apparatus and instruments of elongated orifices, and the hydrogen peroxide after using without any processing, may cause Oxidative demage to other materials when discharge.
Summary of the invention
In order to solve prior art above shortcomings, special a kind of hydrogen peroxide low temperature sterilization device and the using method thereof of proposing of the present invention, this sterilizing installation comprises cavity, control system, display screen, pressure probe, vaporizer, charger, vacuum pump, heater and high efficiency particulate air filter, heater is arranged on around the outer wall of cavity, and is electrically connected to control system; Cavity is divided into sterilization chamber and adapter cavity, and sterilization chamber is connected by intake valve with adapter cavity; Adapter cavity is connected with high efficiency particulate air filter by new air-valve, and sterilization chamber connects the port of export of vaporizer by sterilizing valve, and the arrival end of vaporizer is connected with charger by charging valve, is provided with heating plate on vaporizer; The air draught end of vacuum pump is connected with sterilization chamber by vacuum valve, the outlet air end of vacuum pump is connected with decomposition filter, this invention can be carried out sterilizing to medical apparatus and instruments under low-temp low-pressure state, can carry out abundant sterilizing to thering is the pipeline of the medical apparatus and instruments of elongated orifices, the hydrogen peroxide gas after using can also be filtered to decomposition.
the present invention solves its technical problem, and the technical scheme adopting is:a hydrogen peroxide low temperature sterilization device, comprises cavity, control system, display screen, pressure probe, vaporizer, charger, vacuum pump, heater and high efficiency particulate air filter, and heater is arranged on around the outer wall of cavity, and is electrically connected to control system; In cavity and vaporizer, be provided with respectively temperature sensor, and be electrically connected to control system by temperature sensor; Pressure probe is arranged on cavity, pressure probe, display screen, charger and vacuum pump are electrically connected to control system respectively, cavity is provided with chamber door, its construction features is: cavity is divided into sterilization chamber and adapter cavity, sterilization chamber is connected by intake valve with adapter cavity, the door that described chamber door is sterilization chamber; Adapter cavity is connected with high efficiency particulate air filter by new air-valve; Sterilization chamber connects the port of export of vaporizer by sterilizing valve, the arrival end of vaporizer is connected with charger by charging valve, is provided with heating plate on vaporizer; The air draught end of vacuum pump is connected with sterilization chamber by vacuum valve, and the outlet air end of vacuum pump is connected with decomposition filter.
Above-mentioned hydrogen peroxide low temperature sterilization device is provided with altogether two heating plates on vaporizer, and two heating plates are separately positioned on top and the bottom of vaporizer outer wall, and is all electrically connected to control system.
Above-mentioned hydrogen peroxide low temperature sterilization device, described sterilizing valve, intake valve, new air-valve and vacuum valve all adopt electromagnetic valve, and are all electrically connected to control system.
Above-mentioned hydrogen peroxide low temperature sterilization device, described charging valve adopts Unidirectional solenoid valve.
Above-mentioned hydrogen peroxide low temperature sterilization device, is provided with respectively two pipelines that are connected with sterilization chamber at the air draught end of vacuum pump, and is all respectively provided with a vacuum valve in these two connecting pipe; In sterilization chamber, be correspondingly also provided with two interfaces that are connected with vacuum pump, any in these two interfaces or the inner of two are provided with adapter.
Above-mentioned hydrogen peroxide low temperature sterilization device, described adapter comprises axle and sealing ring, is provided with the axial hole of perforation on axle along its axial line, and is offering a plurality of radial holes that communicate with axial hole near on the circumference of axial end, sealing ring is arranged on the circumference of axle, is positioned at the rear of radial hole.
Use the method for above-mentioned hydrogen peroxide low temperature sterilization device to be: by needing the medical apparatus and instruments of sterilizing to put into sterilization chamber, to close chamber door; By control system heater and heating plate, respectively sterilization chamber, adapter cavity and vaporizer are heated, setting heating-up temperature is the some temperature values in 30 to 60 ℃; Heating reaches after setting value, by control system, open vacuum pump, vacuum valve and sterilizing valve, to sterilization chamber and vaporizer inner chamber evacuation, be evacuated to its atmospheric pressure value and by control system, closed sterilizing valve and opened charging valve after lower than 5000 handkerchiefs, the hydrogen peroxide liquid of set amount is just drawn into vaporizer inner chamber and is heated to form steam state from charger; By control system, close vacuum valve, vacuum pump and charging valve, and open sterilizing valve, hydrogen peroxide gas is just inhaled in sterilization chamber and medical apparatus and instruments is carried out to sterilizing; Reach after the sterilization time of setting, by control system, close sterilizing valve and open intake valve, hot-air in adapter cavity is just inhaled into sterilization chamber, medical apparatus and instruments in sterilization chamber is carried out to hydrogen peroxide gas pressurization sterilizing, reach after the sterilization time of setting, by control system, open vacuum valve and vacuum pump, used hydrogen peroxide gas in sterilization chamber is evacuated to decomposition filter and filters, decompose and discharge; The process of above-mentioned liquid feeding, vaporization, sterilizing can repeat, after sterilization of medical instrument finishes, by control system, close vacuum pump, vacuum valve, and open new air-valve, pure air after high efficiency particulate air filter sterilised filtration is just inhaled into sterilization chamber by adapter cavity, until that the air pressure in sterilization chamber returns to is consistent with external atmospheric pressure, open chamber door, take out sterilized medical apparatus and instruments.
compared with prior art, the invention has the beneficial effects as follows:the beneficial effect that the present invention arranges vacuum pump, vacuum valve is before sterilizing, sterilization chamber and vaporizer inner chamber are carried out to pumped down, air pressure in its sterilization chamber and vaporizer is down to below 5000 handkerchiefs, being beneficial to hydrogen peroxide liquid can fully vaporize in the temperature range of 30 to 60 ℃, and the beneficial effect that utilizes hydrogen peroxide gas sterilization is that sterilization effect is good, consumption is few, required time is short, it is residual to be difficult for; In 30 to 60 ℃ of temperature ranges, the beneficial effect of sterilizing is that hydrogen peroxide gas can enliven and energy effective sterilizing in this temperature range, and this temperature range can not cause hot injury to medical apparatus and instruments simultaneously.Heater is set, the beneficial effect of heating plate is by sterilization chamber, adapter cavity and vaporizer heat, heat sterilization chamber and vaporizer are in order to allow its 30 to 60 ℃ of temperature values that reach setting be beneficial to the abundant vaporization of hydrogen peroxide, higher concentration in sterilization chamber, more hypobaric hydrogen peroxide gas carries out disinfection after sterilizing to medical apparatus and instruments, hydrogen peroxide gas in sterilization chamber need to be improved to air pressure, and after diluted concentration, medical apparatus and instruments is carried out to sterilizing again, the effect of pressure-raising is to strengthen its sterilization effect, the effect of dilution is discharge and the decomposition of a step hydrogen peroxide gas after being beneficial to, the method of its pressure-raising and dilution is in sterilization chamber, to introduce the interim pure air aspirating into through high efficiency particulate air filter storing in adapter cavity, by the object of adapter cavity heating, be that the pure air in adapter cavity is heated, its beneficial effect is to avoid cold air to be introduced into the condensation that causes hydrogen peroxide gas after sterilization chamber.
Another effect of vacuum pump, vacuum valve is after sterilizing completes, need to open vacuum pump and vacuum valve used hydrogen peroxide gas in sterilization chamber is evacuated to decomposition filter, the beneficial effect that decomposition filter is set is to discharge after used hydrogen peroxide waste vapour is filtered, decomposed again, to avoid the hydrogen peroxide with high oxidation characteristic, after discharge, other materials are caused to Oxidative demage.
The beneficial effect that a heating plate is respectively set in top and the bottom of vaporizer outer wall is to be beneficial to whole vaporizer inner chamber all to obtain all even sufficient heating, to guarantee vaporizing completely and fully of its hydrogen peroxide.
Sterilizing valve, intake valve, new air-valve and vacuum valve all adopt electromagnetic valve, and the beneficial effect being electrically connected to control system be convenient to control system can automatically control each valve according to the requirement of setting promptly and accurately carry out break-make.
It is to avoid the hydrogen peroxide in vaporizer to be back to charger that charging valve adopts the beneficial effect of Unidirectional solenoid valve, and the quantity that is conducive to guarantee at every turn to enter into the hydrogen peroxide liquid in vaporizer is accurate.
The beneficial effect that two vacuum pump inlet scoops are set in sterilization chamber is to be conducive to improve the efficiency bleed, and can allow and bleed more evenly in sterilization chamber, can carry out sterilizing to general medical devices and the medical apparatus and instruments with slender pipeline simultaneously simultaneously.
The inner of one or two in two inlet scoops of sterilization chamber arranges adapter, and the beneficial effect that axially extending bore, radial direction through hole and sealing ring are set on adapter is to be connected special-purpose sterilization cassette by it, can guarantee to connect and seal reliable, in sterilization cassette, place the medical apparatus and instruments with slender pipeline, by the switching of sterilization cassette, can allow hydrogen peroxide gas must and can only from the elongated pore of medical apparatus and instruments, pump, realize the elongated pore of medical apparatus and instruments is carried out to abundant sterilizing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is three-dimensional structure diagram of the present invention.
Fig. 3 is the sectional structure chart of the adapter in the present invention.
Fig. 4 be with the present invention supporting the medical apparatus and instruments of elongated pore is carried out to the explosive view of the sterilized instrument box of sterilizing.
Fig. 5 is the sectional structure chart of the sterilized instrument box supporting with the present invention.
Fig. 6 is the sectional structure chart that adapter of the present invention and sterilized instrument box are connected.
In Fig. 1 to Fig. 3,1 is cavity, 2 is control system, 3 is display screen, 4 for pressure probe, 5 for vaporizer, 6 for charger, 7 for vacuum pump, 8 for heater, 9 for sterilizing valve, 10 for intake valve, 11 for charging valve, 12 for new air-valve, 13 for vacuum valve, 14 for adapter, 15 for heating plate, 16 for high efficiency particulate air filter, 17 for decompose filter, 18 for sterilization chamber, 19 for adapter cavity, 20 for chamber door, 30 for the axle of adapter, H be that axial hole, the B arranging on axle is that the radial hole, 31 arranging on axle is sealing ring.
Fig. 4 to Fig. 6 is the sterilized instrument box supporting with the present invention, and 100 is that box body, 150 is that lid, 160 is that non-woven fabrics drainage screen, 200 is that Connection Block, 300 is that pipe joint, 400 is that joint capsule, 500 is that back-up block, 600 is that spring, 700 is that push rod, 800 is that plug, 900 is that sprue, 950 is medical apparatus and instruments subject to sterilization; A is that connecting hole, the K on Connection Block is that pilot hole, Z on Connection Block is that main through hole, F on Connection Block is the spring base hole on Connection Block; C is the passage on pipe joint; D is the transitional pore on back-up block; E is the supported hole on push rod; G is the via hole on box body; M is that the hydrogen peroxide on lid injects window.
The specific embodiment
As shown in Figures 1 to 6, the first specific embodiment of the present invention is: a kind of hydrogen peroxide low temperature sterilization device, it is comprised of cavity 1, control system 2, display screen 3, pressure probe 4, vaporizer 5, charger 6, vacuum pump 7, heater 8, adapter 14, high efficiency particulate air filter 16 and decomposition filter 17, the profile of cavity 1 is cylindrical, heater 8 is arranged on around the outer wall of cavity 1, and is electrically connected to control system 2; The interior temperature sensor (not shown) that is provided with respectively of cavity 1 and vaporizer 5, and be electrically connected to control system 1 by temperature sensor; Pressure probe 4 is arranged on cavity 1, and pressure probe 4, display screen 3, charger 6 and vacuum pump 7 are electrically connected to control system 2 respectively; The inner chamber of cavity 1 is divided into sterilization chamber 18 and adapter cavity 19, and the inner chamber of sterilization chamber 18 is cylindric, and the inner chamber of adapter cavity 19 is annular cavities of a sealing, and sterilization chamber 18 is provided with chamber door 20, and realizes the airtight of sterilization chamber by closing chamber door 20.
One end of adapter cavity 19 is connected with high efficiency particulate air filter 16 by new air-valve 12, and the other end of adapter cavity 19 is connected with sterilization chamber 18 by the pipeline with intake valve 10, jointly forms air cleaning and the input system of present embodiment.Sterilization chamber 18 connects the port of export of vaporizer 5 by sterilizing valve 9, the arrival end of vaporizer 5 is connected with charger 6 by charging valve 11, top and bottom at vaporizer 5 outer walls are respectively provided with a heating plate 15, and be electrically connected to control system, and heater 8 has covered the outer wall of sterilization chamber 18, jointly form hydrogen peroxide input and the carburetion system of present embodiment.Vacuum pump 7 is provided with two air draught ends, connects respectively by vacuum valve 13 with two interfaces up and down corresponding in sterilization chamber 18, and the outlet air end of vacuum pump 7 is connected with and decomposes filter 17, jointly forms bleeding and waste vapour cleaning system of present embodiment.
In the present embodiment, sterilizing valve 9, intake valve 10, new air-valve 12 and vacuum valve 13 all adopt electromagnetic valves to be also electrically connected to control system 2 so that control system can automatically control each valve according to the requirement of setting promptly and accurately carry out break-make.Charging valve 11 adopts Unidirectional solenoid valve, from charger 6 to vaporizer 5 flow direction conductings, oppositely stops, to avoid the hydrogen peroxide in vaporizer 5 to be back to charger 6.
Above two air draught ends of present embodiment in sterilization chamber 18, on that interface, be provided with adapter 14, so that at the sterilization cassette of the interior reliable connection elongated tubular medical apparatus and instruments of sterilization chamber 18 of the present invention special use, the elongated pore of medical apparatus and instruments is carried out to abundant sterilizing to realize.Adapter 14 comprises axle 30 and sealing ring 31, on axle 30, along its axial line, be provided with the axial hole H of perforation, and offering six radial hole B that communicate with axial hole H near on the circumference of axial end, sealing ring 31 is arranged on the circumference of axle 30, is positioned at the rear of radial hole B.Sealing ring 31 coordinates with the connector of special-purpose sterilization cassette, can prevent that the vapour of pumping after adapter is connected with special-purpose sterilization cassette from leaking, by being communicated with of axial hole H, radial hole B and pipeline on special-purpose sterilization cassette, can allow the hydrogen peroxide gas of sterilization chamber 18 by the suction of vacuum pump 7, fully enter into the elongated pore of medical apparatus and instruments, thereby its elongated inner-walls of duct is carried out to effective sterilizing.
While using present embodiment to carry out disinfection sterilizing to general medical devices, first the medical apparatus and instruments that needs sterilizing is put into sterilization chamber 18, close chamber door 20; By control system 2 heater 8 and heating plate 15, respectively sterilization chamber 18, adapter cavity 19 and vaporizer 5 are heated, setting heating-up temperature is 55 ℃; Heating reaches after 55 ℃, by control system 2, open vacuum pump 7, vacuum valve 13 and sterilizing valve 9, to sterilization chamber 18 and vaporizer 5 inner chamber evacuation, being evacuated to its atmospheric pressure value is low to moderate the hydrogen peroxide liquid of closing sterilizing valve 9 by control system 2 after 4500 handkerchiefs and opening in 11, one capsule list lattice of charging valve and just from charger 6, is drawn into vaporizer 5 inner chambers and is heated to form steam state; By control system 2, close vacuum valve 13, vacuum pump 7 and charging valve 11, and open sterilizing valve 9, hydrogen peroxide gas is just inhaled in sterilization chamber 18 and medical apparatus and instruments is carried out to sterilizing; Reach the sterilization time of setting after 20 minutes, by control system 2, close sterilizing valve 9 and open intake valve 10, hot-air in adapter cavity 19 is just inhaled into sterilization chamber 18, medical apparatus and instruments in sterilization chamber 18 is carried out to hydrogen peroxide gas pressurization sterilizing, reach the sterilization time of setting after 10 minutes, by control system 2, open vacuum valve 13 and vacuum pump 7, used hydrogen peroxide gas in sterilization chamber 18 is evacuated to decomposition filter 17 and filters, decompose and discharge; According to the number of the medical apparatus and instruments of sterilization chamber 18 interior placements, can select to hold and whether the process of above-mentioned liquid feeding, vaporization, sterilizing be carried out to repetition, after sterilization of medical instrument finishes, by control system 2, close vacuum pump 7, vacuum valve 13, and open new air-valve 12, the pure air after high efficiency particulate air filter 16 sterilised filtrations is just inhaled into sterilization chamber 18 by adapter cavity 19, until that the air pressure in sterilization chamber 18 returns to is consistent with external atmospheric pressure, open chamber door 20, take out sterilized medical apparatus and instruments.
As shown in Figures 4 to 6, with the supporting sterilized instrument box of the present invention, comprise box body 100, lid 150, Connection Block 200, pipe joint 300, joint capsule 400, back-up block 500, spring 600, push rod 700, plug 800 and sprue 900, adopt bonding mode Connection Block 200 to be fixed on to the inner side of box body 100, box body 100 is complete boxes that all there is side plate on four limits, wherein on the side plate of fixed connecting base 200, has offered via hole G; On Connection Block 200, be provided with main through hole Z, connecting hole A, pilot hole K and spring base hole F, pilot hole K is arranged on the centre position of main through hole Z length direction, and the axis in pilot hole K and main through hole Z perforation and two holes is orthogonal; Via hole G on box body 100 is coaxial with pilot hole K on Connection Block 200 and communicate; Present embodiment is provided with altogether four connecting hole A that are arranged in parallel, the axis of these four connecting hole A is all vertical with the axis of main through hole Z, and connect with main through hole Z, in each connecting hole A, be provided with pipe joint 300, on each pipe joint 300, be all provided with the passage C running through; By the switching of Connection Block 200, the passage C on four pipe joints 300 all can with box body 100 on via hole G keep unimpeded.
Sprue 900 is solid cylinder, and the internal diameter of the main through hole Z on its external diameter and Connection Block 200 matches, by the two ends of the sprue 900 main through hole Zs of plug on Connection Block 200, in order to seal the two ends of main through hole Z.
Above in four pipe joints 300 three of present embodiment, be provided with respectively joint capsule 400, one end of joint capsule 400 is connected with pipe joint 300, the other end is connected with medical apparatus and instruments 950 subject to sterilization, by joint capsule 400, the passage C on pipe joint 300 is communicated with the inner cavity of pipe of medical apparatus and instruments 950, medical apparatus and instruments 950 is duct type medical apparatus and instruments with slightness hole; In another connects the passage C of pipe joint 300 of medical apparatus and instruments, do not filled in plug 800, plug 800 is solid cylinders, with the passage C on the idle pipe joint 300 of plug 800 sealings.Joint capsule 400 adopts elastomeric material to make, and for conventional various duct type medical apparatus and instruments 950, is provided with altogether the joint capsule 400 of ten kinds of sizes and shape, adapts to respectively the inner cavity of pipe of the medical apparatus and instruments of various shapes and size.
In the present embodiment, back-up block 500 is arranged on the via hole G place in box body 100 outsides, by screw, back-up block 500, box body 100 and Connection Block 200 are fixed together, on back-up block 500, be provided with transitional pore D, transitional pore D matches with the axle 30 of adapter on sterilizing installation, transitional pore D is coaxial with pilot hole K on Connection Block 200 and communicate, and the diameter of pilot hole K is greater than transitional pore D; Push rod 700 is tubular, and inside is provided with supported hole E, and supported hole E is the blind hole of one end sealing; The spring base hole F arranging on Connection Block 200 is also a blind hole, and coaxial with pilot hole K, one end of spring 600 is positioned at spring base hole F, the other end is positioned at the supported hole E of push rod 700, under the elastic force effect of spring 600, the end face of push rod 700 stretches in pilot hole K, and covers transitional pore D completely.
On lid 150, offered hydrogen peroxide and injected window M, at hydrogen peroxide, injected on window M and be provided with non-woven fabrics drainage screen 160, non-woven fabrics drainage screen can filter entering the gas of sterilization cassette, intercepts moisture content and antibacterial and enters in box body 100.
When need to be when thering is the duct type medical apparatus and instruments 950 of slightness hole and carry out sterilizing, first open the lid 150 of sterilized instrument box, to need a plurality of duct type medical apparatus and instruments 950 of sterilizing to be placed to one by one in box body 100, select the suitable joint capsule 400 of specification, and joint capsule 400 is installed on pipe joint 300, then one end of each medical apparatus and instruments 950 inner chamber is closely enclosed within on corresponding joint capsule 400, when the quantity of the pipeline medical apparatus and instruments 950 of laying is less than the quantity of pipe joint 300, plug 800 is filled on the passage C of vacant pipe joint 300, to seal idle passage.Cover the sterilized instrument box that after lid 150, this has been placed to medical apparatus and instruments subject to sterilization and push away the sterilization chamber bottom of putting hydrogen peroxide low temperature sterilization device into, push away and be put into behind position, the transitional pore D that the axle 30 of the adapter 14 on sterilizing installation just pierces into back-up block 500 removes propulsion arm 700, under the thrust of connector shaft, spring 600 is compressed, after push rod 700, move, open the main through hole Z on Connection Block 200, thereby the suction channel of open sterilizing gas, now, the slightness hole of duct type medical apparatus and instruments 950 subject to sterilization is just communicated with the axial hole H of adapter 14 through the switching of Connection Block 200 grades, thereby be communicated with the suction channel of sterilizing installation vacuum pump.Close the chamber door of sterilizing installation, start the sterilizing program of sterilizing installation, allow hydrogen peroxide sterilizing gas be covered with the sterilization chamber of sterilizing installation, and be covered with in sterilization cassette by the hydrogen peroxide injection window M on lid 150.Open the vacuum pump of sterilizing installation, aspirated for 5 to 15 seconds, after allowing hydrogen peroxide sterilizing gas in sterilization chamber and sterilization cassette by the elongated vestibule of abundant inspiration duct type medical apparatus and instruments, close vacuum pump, keep enough sterilization times, can carry out abundant sterilizing to thering is the inside and outside wall of the duct type medical apparatus and instruments of slightness hole, thereby solve the problem that prior art is difficult to carry out sterilizing to having the inner hole wall of the duct type medical apparatus and instruments of elongated orifices.
Above two air draught ends of present embodiment in sterilization chamber 18, that interface arranges adapter 14 connection sterilized instrument boxes, can carry out effective sterilizing to having the small sized pipeline inwall of the medical apparatus and instruments of elongated pore; Below the interface of that air draught end keep unimpeded, can carry out sterilizing to general medical devices, present embodiment can be to the sterilizing that carries out disinfection of the medical apparatus and instruments of general medical devices and elongated pore simultaneously.
Claims (4)
1. a hydrogen peroxide low temperature sterilization device, comprise cavity (1), control system (2), display screen (3), pressure probe (4), vaporizer (5), charger (6), vacuum pump (7), heater (8) and high efficiency particulate air filter (16), heater (8) is arranged on around the outer wall of cavity (1), and is electrically connected to control system (2); In cavity (1) and vaporizer (5), be provided with respectively temperature sensor, and be electrically connected to control system (1) by temperature sensor; Pressure probe (4) is arranged on cavity (1), pressure probe (4), display screen (3), charger (6) and vacuum pump (7) are electrically connected to control system (2) respectively, cavity (1) is provided with chamber door (20), it is characterized in that: cavity (1) is divided into sterilization chamber (18) and adapter cavity (19), sterilization chamber (18) is connected by intake valve (10) with adapter cavity (19), and described chamber door (20) is the door of sterilization chamber (18); Adapter cavity (19) is connected with high efficiency particulate air filter (16) by new air-valve (12); Sterilization chamber (18) connects the port of export of vaporizer (5) by sterilizing valve (9), the arrival end of vaporizer (5) is connected with charger (6) by charging valve (11), is provided with heating plate (15) on vaporizer (5); The air draught end of vacuum pump (7) is connected with sterilization chamber (18) by vacuum valve (13), the outlet air end of vacuum pump (7) is connected with and decomposes filter (17), air draught end at vacuum pump (7) is provided with respectively two pipelines that are connected with sterilization chamber (18), and is all respectively provided with a vacuum valve (13) in these two connecting pipes; In sterilization chamber (18), be correspondingly also provided with two interfaces that are connected with vacuum pump (7), any in these two interfaces or the inner of two are provided with the adapter (14) that comprises axle (30) and sealing ring (31), at axle (30), above along its axial line, be provided with axial hole (H), and offering a plurality of radial holes (B) that communicate with axial hole (H) near on the circumference of axial end, sealing ring (31) is arranged on the circumference of axle (30), is positioned at the rear of radial hole (B).
2. a kind of hydrogen peroxide low temperature sterilization device according to claim 1, it is characterized in that: charging valve (11) adopts Unidirectional solenoid valve, sterilizing valve (9), intake valve (10), new air-valve (12) and vacuum valve (13) all adopt electromagnetic valve, and are all electrically connected to control system (2).
3. a kind of hydrogen peroxide low temperature sterilization device according to claim 1, it is characterized in that: on vaporizer (5), be provided with altogether two heating plates (15), two heating plates (15) are separately positioned on top and the bottom of vaporizer (5) outer wall, and are all electrically connected to control system (2).
4. right to use requires the method for the hydrogen peroxide low temperature sterilization device described in 1, it is characterized in that: the medical apparatus and instruments that needs sterilizing is put into sterilization chamber (18), close chamber door (20); By control system (2) heater (8) and heating plate (15), respectively sterilization chamber (18), adapter cavity (19) and vaporizer (5) are heated, setting heating-up temperature is the some temperature values in 30 to 60 ℃; Heating reaches after setting value, by control system (2), open vacuum pump (7), vacuum valve (13) and sterilizing valve (9), to sterilization chamber (18) and vaporizer (5) inner chamber evacuation, be evacuated to its atmospheric pressure value and by control system (2), closed sterilizing valve (9) and opened charging valve (11) after lower than 5000 handkerchiefs, the hydrogen peroxide liquid of set amount is just drawn into vaporizer (5) inner chamber and is heated to form steam state from charger (6); By control system (2), close vacuum valve (13), vacuum pump (7) and charging valve (11), and open sterilizing valve (9), hydrogen peroxide gas is just inhaled in sterilization chamber (18) and medical apparatus and instruments is carried out to sterilizing; Reach after the sterilization time of setting, by control system (2), close sterilizing valve (9) and open intake valve (10), hot-air in adapter cavity (19) is just inhaled into sterilization chamber (18), medical apparatus and instruments in sterilization chamber (18) is carried out to hydrogen peroxide gas pressurization sterilizing, reach after the sterilization time of setting, by control system (2), open vacuum valve (13) and vacuum pump (7), used hydrogen peroxide gas in sterilization chamber (18) is evacuated to decomposition filter (17) and filters, decompose and discharge; The process of above-mentioned liquid feeding, vaporization, sterilizing can repeat, after sterilization of medical instrument finishes, by control system (2), close vacuum pump (7), vacuum valve (13), and open new air-valve (12), pure air after high efficiency particulate air filter (16) sterilised filtration is just inhaled into sterilization chamber (18) by adapter cavity (19), until the air pressure in sterilization chamber (18) returns to unanimously with external atmospheric pressure, open chamber door (20), take out sterilized medical apparatus and instruments.
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| CN201110332486.5A CN102350003B (en) | 2011-10-28 | 2011-10-28 | Hydrogen peroxide low-temperature sterilizing equipment and use method thereof |
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| CN102350003B true CN102350003B (en) | 2014-03-19 |
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| CN102631692B (en) * | 2012-04-16 | 2014-12-10 | 杭州泰林生物技术设备有限公司 | On-line sterilization method used for freeze dryers and device thereof |
| CN103182093B (en) * | 2013-04-11 | 2015-04-29 | 中国人民解放军军事医学科学院卫生装备研究所 | Hydrogen peroxide steam sterilizing device |
| CN103341192B (en) * | 2013-07-25 | 2015-04-29 | 山东新华医疗器械股份有限公司 | Sterilization method and application of hydrogen peroxide low-temperature plasma sterilizer |
| KR20160052697A (en) * | 2013-09-06 | 2016-05-12 | 떼에스오뜨로와 이엔쎄. | Sterilization methods and apparatus and adaptive control thereof |
| CN104174058B (en) * | 2014-09-05 | 2017-04-12 | 上海严复制药系统工程有限公司 | VHP sterilization device and method |
| WO2018006387A1 (en) * | 2016-07-08 | 2018-01-11 | 深圳市先赞科技有限公司 | Sterilization method, sealed chamber sterilization method, and ethylene oxide sterilization bag for medical endoscope |
| CN108686240B (en) * | 2017-04-10 | 2022-03-04 | 山东新华医疗器械股份有限公司 | Sterilization method and sterilization apparatus |
| CN114432479B (en) * | 2022-02-22 | 2024-08-06 | 湖北才风医疗科技有限公司 | Pulse type gas disinfection and sterilization method and disinfection system |
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| MY115198A (en) * | 1995-08-11 | 2003-04-30 | Nestle Sa | Process and apparatus for sterilising surfaces |
| CN1153668A (en) * | 1995-10-27 | 1997-07-09 | 庄臣及庄臣医药有限公司 | Vapor sterilization using inorganic hydrogen peroxide complexes |
| CN101065155A (en) * | 2004-11-26 | 2007-10-31 | 互曼迈迪泰克公司 | Hydrogen peroxide vapor sterilizer and sterilizing methods using the same |
| CN2832155Y (en) * | 2005-10-12 | 2006-11-01 | 孙建生 | Hydrogen dioxide plasma low temperature sterilization equipment |
| CN101618226B (en) * | 2009-08-12 | 2013-04-17 | 成都老肯科技股份有限公司 | Hydrogen peroxide plasma sterilizer and sterilizing method thereof |
| CN202283362U (en) * | 2011-10-28 | 2012-06-27 | 成都老肯科技股份有限公司 | Hydrogen peroxide low temperature sterilization device |
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