CN102423495B - Pulsed steam sterilization process and steam sterilizer thereof - Google Patents
Pulsed steam sterilization process and steam sterilizer thereof Download PDFInfo
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- CN102423495B CN102423495B CN201110379216.XA CN201110379216A CN102423495B CN 102423495 B CN102423495 B CN 102423495B CN 201110379216 A CN201110379216 A CN 201110379216A CN 102423495 B CN102423495 B CN 102423495B
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Abstract
The invention discloses a pulsed steam sterilization process suitable for sterilizing medical equipment and a steam sterilizer for the steam sterilization process. The sterilization process comprises the following steps of vacuumizing, preheating, sterilizing, performing vacuum drying and the like. The steam sterilizer comprises a steam sterilization box, a valve bank, an air filter, a steam generator, a vacuum pump and an automatic control system. Compared with the prior art, the invention has the advantages that: by the pulsed steam sterilization process and the steam sterilizer thereof, a sterilization apparatus can be transported without packaging, the temperature raising and reduction time of the sterilization is shortened, the sterilization time of the apparatus is shortened, the labor intensity of medical care personnel is reduced, and the disinfection and sterilization are more complete and have a better effect.
Description
Technical field
The sterilization and the sterilizing field that the present invention relates to medical apparatus and instruments, exactly refer to a kind of pulsation steam sterilization technique and steam autoclave thereof.
Background technology
At present, steam autoclave is widely used in the sterilizing of medical, but the restriction due to discharging modes and the degree of air, sterilizing intensification and temperature fall time are long, again because the apparatus of sterilizing is put instrumentation point by sterilizing and is had certain distance, for preventing pollution again in transit, all need sterilized instrument to be dried and to wrap up, parcel mode is wrapped up after generally adopting the front parcel of sterilizing and sterilizing, parcel before sterilizing, increased water vapour penetration difficulty, extended the sterilizing heating-up time, instrument bag after sterilizing simultaneously must be dried and can take out, parcel has increased dry difficulty, also extended drying time, cause sterilising cycle to extend.After sterilizing, wrap up, owing to being machine outer wrapping, high to environment cleanliness requirement, easily produce secondary pollution, meanwhile, the apparatus wrapping up after sterilizing needs dry equally, and sterilising cycle is extended.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is to provide a kind of pulsation steam sterilization technique and steam autoclave thereof, make sterilized instrument no longer need parcel just can implement transportation, accelerate the sterilizing heating-cooling time, to shorten the sterilization time of apparatus, alleviate medical personnel's labor intensity, and sterilization is more thorough, better effects if.
In order to solve above technical problem, pulsation steam sterilization technique provided by the invention, comprises the following steps:
1) medical apparatus and instruments is put into sterilization cassette, and sterilization cassette is put into steriliser, and the air feed duct of sterilization cassette is connected with steriliser air supply pipe, the duct of bleeding of sterilization cassette is connected with steriliser exhaust tube;
2) by steriliser, sterilization cassette is evacuated to pressure for-82kPa～-92kPa, then to sterilization cassette steam injection, when steam pressure is during to 75kPa～85kPa, pressure release is vented to 0～4kPa, then be evacuated to-77kPa～-87kPa;
3) repeating step 2) 1～3 time;
4) by steriliser to sterilization cassette steam injection, 121～138 ℃ of temperature, steam pressure is 100～240kPa, keeps 3～22min, temperature and pressure relation in direct ratio, the inversely proportional relation of temperature and time;
5) repeating step 3) 1～4 time;
6) discharge the steam in sterilization cassette;
7) evacuation, one feeds filtered air towards sterilization cassette, maintains 2～5min, then with steriliser, sterilization cassette is evacuated to pressure to be-then pressure release of 80kPa～-90kPa, until steriliser Pressure Drop is to 0kpa;
8) take out sterilization cassette.
Preferably, in step 4, by steriliser, to sterilization cassette steam injection, steam pressure is 100～140kPa, and 121～125 ℃ of temperature keep 20～22min.
Preferably, in step 4, by steriliser, to sterilization cassette steam injection, steam pressure is 200～240kPa, and 134～138 ℃ of temperature keep 3～4min.
Preferably, in step 3, repeating step 2) 1 time.
Preferably, in step 5, repeating step 2) 2 times.
Compared with prior art, adopt pulsation steam sterilization technique of the present invention, evacuation and steam TPER have been accelerated, adopt new supply gas and exhaust mode can make air feed, bleed evenly simultaneously, in sterilization cassette, do not have dead angle, by the way of evacuation～steam injection repeatedly, make the distribution of steam in steam sterilization box more even, shorten sterilized instrument and reached the required heating-up time of sterilising temp from room temperature, improved sterilizing efficiency, and sterilization is more thorough, better effects if.
In addition, the present invention also provides a kind of steam autoclave that adopts described pulsation steam sterilization technique, comprises at least one sterilization cassette, and this sterilization cassette comprises box body and lid, and described lid is fastened on box body, between box body and lid, is provided with hermetically-sealed construction;
In steam autoclave, be provided with the cavity that at least one holds sterilization cassette, in described cavity, be provided with and described air feed duct and air supply pipe and the exhaust tube that duct is corresponding and match of bleeding, described air supply pipe is provided with two arms, wherein an arm is connected in steam generator through stop valve, and another arm connects and air filter through stop valve; And described exhaust tube is also provided with two arms, wherein an arm is connected in an exhaustor from cavity through stop valve, and another arm is connected in vacuum pump from connecting sterilization cassette exhaust tube through stop valve;
The input port in described sterilization cassette air feed duct is located at a side of lid; Described hermetically-sealed construction is sealing ring, described sealing ring is arranged on the medial wall of described lid, described sealing ring comprises plate face, the first veneer and the second veneer, described the first veneer and the second veneer connect as one structure with plate face respectively, described the first veneer is fitted on described the second veneer to form leads vapour passage, described in lead vapour passage and communicate with the input port in described air feed duct;
There is closing element described input port, described closing element comprises described in draining pawl, returning spring, diaphragm seal and draining pawl fixture that draining pawl is arranged on described lid by described draining pawl fixture, described spring is conflicted between described draining pawl and described diaphragm seal, described draining pawl fixture is provided with the through hole of leading vapour passage described in being communicated in, and described diaphragm seal is over against described through hole;
The bleed delivery outlet in duct of described sterilization cassette is located on box body and the same side, described gateway, described delivery outlet has closing element, described closing element comprises described in draining pawl, returning spring, diaphragm seal and draining pawl fixture that draining pawl is arranged on described box body by described draining pawl fixture, described spring is conflicted between described draining pawl and described diaphragm seal, described draining pawl fixture is provided with the through hole that is communicated in box body inner side, and described diaphragm seal is over against described through hole.
Preferably, described air supply pipe and exhaust tube also comprise heating pipe joint and exhaust tube joint, and this heating pipe joint and exhaust tube joint are connected with described air feed duct and the duct of bleeding respectively, and at lateral opening, faces end head plugging.
Preferably, described sealing ring is arranged on described lid medial wall around.
Preferably, described diaphragm seal is connected with described spring by gasket seal.
Preferably, between described draining pawl and described box body, be provided with sealing strip.
Because the present invention is comprised of one or more movably steam sterilization boxes and steam autoclave main body.Movably sterilization cassette can be connected with steriliser main body quickly and easily, it is by making air feed duct be connected with exhaust tube with the air supply pipe of steam autoclave with the duct of bleeding, realization is to sterilization cassette rapid air feeding and bleeding, because the relatively common steriliser combustion space of sterilization cassette is little, easily realize the full of evacuation and steam, and intensification and temperature fall time that the special air feed that steriliser adopts and exhaust mode have shortened apparatus, again due to the input port of sterilization cassette and the special construction of delivery outlet, after making its air supply pipe and exhaust tube depart from sterilization cassette, can automatically close, cut off the circulation of sterilization cassette and extraneous air, make the apparatus after sterilizing in box, realize Preservation in sterile condition, convenient transportation, avoided the trouble of sterilized instrument parcel, reduced the channel of secondary pollution.The same side that the delivery outlet in the input port in air feed duct and the duct of bleeding sets up lid and the box body of steam sterilization box separately, can pulse by vacuum, steam injection imports to leading in vapour passage of sealing ring, when the steam in leading vapour passage reaches certain pressure, the first veneer and the second veneer open, steam, to the diffusion of lid surrounding, makes the distribution of steam in steam sterilization box more even.The input port of sterilization cassette and the special construction of delivery outlet, can make aspirating hole road open when exhaust tube inserts, and while extracting, closes, and guarantees sealing effect.
The support body being also provided with in steam sterilization box can facilitate putting of medical apparatus and instruments, and makes vapor stream clear and coherent smooth.When can preventing at evacuation, the steam cooling device arranging between vacuum pump and stop valve by steam suction vacuum pump, affects the life-span of vacuum pump.Stop valve adopts electric-control stop valve can realize automatic control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the open mode of steam sterilization box in the present invention;
Fig. 2 is the structural representation of the closure state of steam sterilization box in the present invention;
Fig. 3 is the structural representation of the delivery outlet of steam sterilization box in the present invention;
Fig. 4 is the cross section structure schematic diagram of the sealing ring of steam sterilization box in the present invention.
The specific embodiment
For those skilled in the art can understand technical scheme provided by the present invention better, below in conjunction with specific embodiment, set forth.
Refer to Fig. 1～Fig. 4, Fig. 1 is the structural representation of the open mode of steam sterilization box in the present invention; Fig. 2 is the structural representation of the closure state of steam sterilization box in the present invention; Fig. 3 is the structural representation of the delivery outlet of steam sterilization box in the present invention; Fig. 4 is the cross section structure schematic diagram of the sealing ring of steam sterilization box in the present invention.
The steam autoclave of employing pulsation steam sterilization technique provided by the invention, comprises at least one sterilization cassette, and this sterilization cassette comprises box body 3 and lid 2, and lid 2 is fastened on box body 3, between box body 3 and lid 2, is provided with hermetically-sealed construction;
In steam autoclave, be provided with the cavity that at least one holds sterilization cassette, in cavity, be provided with and air feed duct and air supply pipe and the exhaust tube that duct is corresponding and match of bleeding, air supply pipe is provided with two arms, wherein an arm is connected in steam generator through stop valve, and another arm connects and air filter through stop valve; And exhaust tube is also provided with two arms, wherein an arm is connected in an exhaustor from cavity through stop valve, and another arm is connected in vacuum pump from connecting sterilization cassette exhaust tube through stop valve.
The input port 24 in sterilization cassette air feed duct is located at the side on lid 2; Hermetically-sealed construction is sealing ring 1, sealing ring 1 is arranged on lid 2 medial wall around, sealing ring 1 comprises plate face 20, the first veneer 21 and the second veneer 22, the first veneer 21 and the second veneer 22 connect as one structure with plate face 20 respectively, the first veneer 21 is fitted on the second veneer 22 and forms and lead vapour passage, leads vapour passage and communicates with the input port 24 in air feed duct.
There is closing element input port 24, described closing element comprises draining pawl 12, returning spring 9, diaphragm seal 7 and draining pawl fixture 10, draining pawl 12 is arranged on lid 2 by draining pawl fixture 10, spring 9 is conflicted between draining pawl 12 and diaphragm seal 7, draining pawl fixture 10 is provided with and is communicated in the through hole of leading vapour passage, and diaphragm seal 7 is over against through hole; Diaphragm seal 7 is connected with spring 9 by gasket seal 8, between draining pawl 12 and box body 3, is provided with sealing strip 6.
The bleed delivery outlet 23 in duct of sterilization cassette is located on box body 3 and 24 the same sides, input port, delivery outlet 23 has closing element, described closing element comprises draining pawl 12, returning spring 9, diaphragm seal 7 and draining pawl fixture 10, draining pawl 12 is arranged on box body 3 by draining pawl fixture 10, spring 9 is conflicted between draining pawl 12 and diaphragm seal 7, draining pawl fixture 10 is provided with the through hole that is communicated in box body 3 inner sides, and diaphragm seal 7 is over against through hole; Diaphragm seal 7 is connected with spring 9 by gasket seal 8, between draining pawl 12 and box body 3, is provided with sealing strip 6.
Air supply pipe and exhaust tube also comprise heating pipe joint and exhaust tube joint, and this heating pipe joint and exhaust tube joint are connected with air feed duct and the duct of bleeding respectively, and at lateral opening, faces end head plugging.
The top of lid 2 is provided with lid handle 4 and lid handle hangers 5; The sidewall of lid 2 is provided with stainless steel wire 13, clip 14 and pulling buckle 15.The sidewall of box body is provided with card fixing head 16, pulling buckle ear code 17, side handle 19 and side handle fixed code 18.
Because the present invention is comprised of one or more movably steam sterilization boxes and steam autoclave main body.Movably sterilization cassette can be connected with steriliser main body quickly and easily, it is by making air feed duct be connected with exhaust tube with the air supply pipe of steam autoclave with the duct of bleeding, realization is to sterilization cassette rapid air feeding and bleeding, because the relatively common steriliser combustion space of sterilization cassette is little, easily realize the full of evacuation and steam, and intensification and temperature fall time that the special air feed that steriliser adopts and exhaust mode have shortened apparatus, again due to the input port of sterilization cassette and the special construction of delivery outlet, after making its air supply pipe and exhaust tube depart from sterilization cassette, can automatically close, cut off the circulation of sterilization cassette and extraneous air, make the apparatus after sterilizing in box, realize Preservation in sterile condition, convenient transportation, avoided the trouble of sterilized instrument parcel, reduced the channel of secondary pollution.Not the same side that the delivery outlet in the input port in air feed duct and the duct of bleeding sets up lid and the box body of steam sterilization box separately, can pulse by vacuum, steam injection imports to leading in vapour passage of sealing ring, when the steam in leading vapour passage reaches certain pressure, the first veneer and the second veneer open, steam, to the diffusion of lid surrounding, makes the distribution of steam in steam sterilization box more even.The input port of sterilization cassette and the special construction of delivery outlet, can make aspirating hole road open when exhaust tube inserts, and while extracting, closes, and guarantees sealing effect.
The present invention has also adopted new pulsation steam sterilization technique, comprise the following steps: 1) medical apparatus and instruments is put into sterilization cassette, and sterilization cassette is put into steriliser, and the air feed duct of sterilization cassette is connected with steriliser air supply pipe, the duct of bleeding of sterilization cassette is connected with steriliser exhaust tube; 2) by steriliser, sterilization cassette is evacuated to pressure for-82kPa～-92kPa, then to sterilization cassette steam injection, when steam pressure is during to 75kPa～85kPa, pressure release is vented to 0～4kPa, then be evacuated to-77kPa～-87kPa; 3) repeating step 2) 1 time; 4) by steriliser to sterilization cassette steam injection, 121～138 ℃ of temperature, steam pressure is 100～240kPa, keeps 3～22min, temperature and pressure relation in direct ratio, the inversely proportional relation of temperature and time; 5) repeating step 3) 2 times; 6) discharge the steam in sterilization cassette; 7) evacuation, one feeds filtered air towards sterilization cassette, maintains 2～5min, then with steriliser, sterilization cassette is evacuated to pressure to be-then pressure release of 80kPa～-90kPa, until steriliser Pressure Drop is to 0kpa; 8) take out sterilization cassette.
Wherein, step 4 is divided into two kinds of situations: (1), by steriliser to sterilization cassette steam injection, steam pressure is 100～140kPa, and 121～125 ℃ of temperature keep 20～22min.(2) by steriliser to sterilization cassette steam injection, steam pressure is 200～240kPa, 131～138 ℃ of temperature keep 3～4min.
Above pressure index is with respect to atmospheric pressure index.
The feature of this technique has been to adopt boxlike sterilization chamber to make the volume reducing of sterilization chamber, evacuation and steam TPER have been accelerated, adopt new supplying gas and exhaust mode simultaneously, shorten sterilized instrument and reached the required heating-up time of sterilising temp from room temperature, thereby improve the turnover rate of apparatus, and sterilization is more thorough, better effects if.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a steam autoclave for the steam sterilization technique of pulsing, is characterized in that, comprises at least one sterilization cassette, and this sterilization cassette comprises box body and lid, and described lid is fastened on box body, between box body and lid, is provided with hermetically-sealed construction;
In steam autoclave, be provided with the cavity that at least one holds sterilization cassette, in described cavity, be provided with and air feed duct and air supply pipe and the exhaust tube that duct is corresponding and match of bleeding, described air supply pipe is provided with two arms, wherein an arm is connected in steam generator through stop valve, and another arm connects and air filter through stop valve; And described exhaust tube is also provided with two arms, wherein an arm is connected in an exhaustor from cavity through stop valve, and another arm is connected in vacuum pump from connecting sterilization cassette exhaust tube through stop valve;
The input port in described sterilization cassette air feed duct is located at a side of lid; Described hermetically-sealed construction is sealing ring, described sealing ring is arranged on the medial wall of described lid, described sealing ring comprises plate face, the first veneer and the second veneer, described the first veneer and the second veneer connect as one structure with plate face respectively, described the first veneer is fitted on described the second veneer to form leads vapour passage, described in lead vapour passage and communicate with the input port in described air feed duct;
Described input port is provided with closing element, described closing element comprises draining pawl, returning spring, diaphragm seal and draining pawl fixture, described draining pawl is arranged on described lid by described draining pawl fixture, described spring is conflicted between described draining pawl and described diaphragm seal, described draining pawl fixture is provided with the through hole of leading vapour passage described in being communicated in, and described diaphragm seal is over against described through hole;
The bleed delivery outlet in duct of described sterilization cassette is located on box body and the same side, described gateway, delivery outlet has closing element, described closing element comprises described in draining pawl, returning spring, diaphragm seal and draining pawl fixture that draining pawl is arranged on described box body by described draining pawl fixture, described spring is conflicted between described draining pawl and described diaphragm seal, described draining pawl fixture is provided with the through hole that is communicated in box body inner side, and described diaphragm seal is over against described through hole;
Pulsation steam sterilization technique, comprises the following steps:
1) medical apparatus and instruments is put into sterilization cassette, and sterilization cassette is put into steriliser, and the air feed duct of sterilization cassette is connected with steriliser air supply pipe, the duct of bleeding of sterilization cassette is connected with steriliser exhaust tube;
2) by steriliser, sterilization cassette is evacuated to pressure for-82kPa～-92kPa, then to sterilization cassette steam injection, when steam pressure is during to 75kPa～85kPa, pressure release is vented to 0～4kPa, then be evacuated to-77kPa～-87kPa;
3) repeating step 2) 1～3 time;
4) by steriliser to sterilization cassette steam injection, 121～138 ℃ of temperature, steam pressure is 100～240kPa, keeps 3～22min, temperature and pressure relation in direct ratio, the inversely proportional relation of temperature and time;
5) repeating step 3) 1～4 time;
6) discharge the steam in sterilization cassette;
7) evacuation, one feeds filtered air towards sterilization cassette, maintains 2～5min, then with steriliser, sterilization cassette is evacuated to pressure to be-then pressure release of 80kPa～-90kPa, until steriliser Pressure Drop is to 0kpa;
8) take out sterilization cassette.
2. steam autoclave according to claim 1, it is characterized in that, described air supply pipe and exhaust tube also comprise heating pipe joint and exhaust tube joint, and this heating pipe joint and exhaust tube joint are connected with described air feed duct and the duct of bleeding respectively, and at lateral opening, faces end head plugging.
3. steam autoclave according to claim 1, is characterized in that, described sealing ring is arranged on described lid medial wall around.
4. steam autoclave according to claim 1, is characterized in that, described diaphragm seal is connected with described spring by gasket seal.
5. steam autoclave according to claim 1, is characterized in that, between described draining pawl and described box body, is provided with sealing strip.
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| CN201110379216.XA CN102423495B (en) | 2011-11-24 | 2011-11-24 | Pulsed steam sterilization process and steam sterilizer thereof |
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| CN201110379216.XA CN102423495B (en) | 2011-11-24 | 2011-11-24 | Pulsed steam sterilization process and steam sterilizer thereof |
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| CN102423495B true CN102423495B (en) | 2014-10-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104397616B (en) * | 2014-11-20 | 2016-10-19 | 中国农业科学院农产品加工研究所 | A kind of method of pressure reduction expansion drying fruit and vegerable of pulsing |
| US9931427B2 (en) | 2016-05-11 | 2018-04-03 | Ethicon, Inc. | Apparatus and method for detecting moisture in a vacuum chamber |
| CN109289067B (en) * | 2018-11-16 | 2023-10-10 | 成都九元科技有限公司 | Instrument sterilizer, instrument sterilization system and instrument sterilization method |
| CN111110883A (en) * | 2020-01-21 | 2020-05-08 | 山东新华医疗器械股份有限公司 | Card type pulsation vacuum sterilizer |
| CN113332459A (en) * | 2021-07-14 | 2021-09-03 | 上海可恩口腔门诊部有限公司 | Pulsating steam sterilization process and steam sterilizer thereof |
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| CN200970863Y (en) * | 2006-11-17 | 2007-11-07 | 王文增 | vulcanizing mould for groove pipe joint sealing ring |
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| KR100386012B1 (en) * | 2000-12-04 | 2003-06-02 | 주식회사 신흥 | sterilizer for medical appliance |
| US6818178B2 (en) * | 2001-08-16 | 2004-11-16 | Environmental Tectonics Corporation | Method for high vacuum sterilization of closures |
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|---|---|---|---|---|
| CN1293068A (en) * | 1999-11-05 | 2001-05-02 | 何小平 | Medical disinfector and method for disinfecting medical apparatus |
| CN1799632A (en) * | 2005-12-19 | 2006-07-12 | 何德贤 | Steam sterilization process and steam sterilization apparatus employed the same |
| CN2922903Y (en) * | 2005-12-19 | 2007-07-18 | 何德贤 | Steam sterilizing box and steam sterilizer with same |
| CN200970863Y (en) * | 2006-11-17 | 2007-11-07 | 王文增 | vulcanizing mould for groove pipe joint sealing ring |
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