CN1799632A - Steam sterilization process and steam sterilization apparatus employed the same - Google Patents

Steam sterilization process and steam sterilization apparatus employed the same Download PDF

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Publication number
CN1799632A
CN1799632A CN 200510134732 CN200510134732A CN1799632A CN 1799632 A CN1799632 A CN 1799632A CN 200510134732 CN200510134732 CN 200510134732 CN 200510134732 A CN200510134732 A CN 200510134732A CN 1799632 A CN1799632 A CN 1799632A
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China
Prior art keywords
steam
duct
steam sterilization
lid
bleeding
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CN 200510134732
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Chinese (zh)
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CN100374166C (en
Inventor
何德贤
何小平
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He Dexian
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Abstract

The invention relates to a steam sterilizing process for the disinfection of medical appliances in hospital, and the steam sterilizer employing the steam sterilizing process, which comprises the steps of vacuumizing, preheating, sterilizing and cooling down. The steam sterilizer comprises a steam sterilizing box, a valve group, an air filter, a steam generator, a vacuum pump and an automatic control system.

Description

Steam sterilization technology and adopt the steam autoclave of this technology
Technical field
The present invention relates to a kind of steam autoclave that is applicable to the sterilization process of hospital's sterilization of medical instrument and adopts this technology.
Background technology
At present, steam autoclave is widely used in the sterilization of hospital's medical apparatus and instruments, but because the discharging modes of air and the restriction of degree, sterilization intensification and temperature fall time are long, again because the apparatus of sterilization has certain distance by the sterilization point to the instrumentation point, for preventing pollution once more in transit, all need sterilized instrument is carried out drying and parcel, the parcel mode is wrapped up and sterilization back parcel the preceding parcel of sterilization before generally adopting sterilization, then increased the water vapour penetration difficulty, prolonged the sterilization heating-up time, the instrument bag after the sterilization must drying can be taken out simultaneously, and parcel has increased dry difficulty, also prolong drying time, caused sterilising cycle to prolong.Sterilization back parcel, then, high to the environment cleanliness requirement owing to being the machine outer wrapping, be easy to generate secondary pollution, simultaneously, the apparatus that wrap up the sterilization back needs drying equally, makes the sterilising cycle prolongation.
Summary of the invention
One object of the present invention is at the problems referred to above, and a kind of steam sterilization box that is applicable to hospital's sterilization of medical instrument is provided, and another object of the present invention is to provide a kind of steam autoclave that has the steam sterilization box.Make sterilized instrument no longer need parcel just can implement transportation, accelerate the sterilization heating-cooling time,, alleviate medical personnel's labor intensity to shorten the sterilization time of apparatus.
For achieving the above object, technical scheme of the present invention is: a kind of steam sterilization technology may further comprise the steps: 1) medical apparatus and instruments is put into hermetic container, and hermetic container is put into steriliser; 2) hermetic container is evacuated to pressure and is 2.0-8.0kPa till; 3) infeed steam to hermetic container, steam pressure is 0.20-0.22MPa, temperature 132-135 ℃, keeps 3-4min; 4) exhaust steam; 5) evacuation, one infeeds filtered air towards hermetic container, reduces to 60 ℃ until temperature; 6) take out hermetic container.
Steam sterilization technology of the present invention also comprises a preheating step: infeeded pressure 0.18-0.22Mpa steam to hermetic container earlier before step 3), discharge rapidly then, get rid of remaining cold air and condensed water.
Adopt steam sterilization technology of the present invention, evacuation and steam TPER have been accelerated, adopt new supply gas and exhaust mode can make air feed simultaneously, bleed evenly, no dead angle, by first evacuation, the way of steam of reinjecting makes the distribution of steam in the steam sterilization box more even, shortened sterilized instrument and reached the required heating-up time of sterilising temp from room temperature, what reach sterilization back apparatus reduces to 60 ℃ of required times from sterilising temp, reduce to 5 fens clock times of present less than from original 6-9 minute sterilization time, improve sterilizing efficiency, thereby improved the turnover rate of apparatus.
The present invention also provides a kind of steam autoclave that adopts above-mentioned steam sterilization technology, comprise at least one steam sterilization box, this steam sterilization box comprises box body and lid, described lid is fastened on box body, between box body and lid, be provided with hermetically-sealed construction and locker, on box body or lid, also be provided with the air feed duct and the duct of bleeding, on this air feed duct and the duct of bleeding, be provided with closure member; In steam autoclave, be provided with the cavity that at least one holds the steam sterilization box, in described cavity, be provided with and the described air feed duct and air supply pipe and the exhaust tube that the duct is corresponding and match of bleeding, described air supply pipe be connected in parallel steam generator and air filter, described exhaust tube be connected in parallel an exhaustor and a vacuum pump; Be respectively equipped with stop valve between air supply pipe and the steam generator and between air supply pipe and the air filter, be respectively equipped with stop valve at the front end of exhaustor and vacuum pump.
The input port in described steam sterilization box air feed duct is located at a side of lid, and the delivery outlet in its duct of bleeding is located at the opposite side of lid; Described hermetically-sealed construction is a rubber seal, and described locker is the coupling type locker.
The closure member of described steam sterilization box is made of spool, valve seat and back-moving spring, spool is positioned at an end of back-moving spring and is closed on the valve opening of valve seat, the lateral hole wall of described spool offers the passage that is communicated in the lid inboard, and this passage constitutes the part in the described air feed duct or the duct of bleeding; And 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 the described air feed duct and the duct of bleeding respectively, and at lateral opening, faces end head plugging.
In described steam sterilization box box body, can be provided with support body.
Between described vacuum pump and stop valve, can also be provided with the steam chiller.
Described stop valve can be automatically controlled stop valve.Described automatically controlled stop valve, vacuum pump and steam generator are controlled automatically by automatic control system.
Because the present invention is made up of one or more movably steam sterilization boxes and steam autoclave main body.Movably sterilization cassette can be connected with the steriliser main body quickly and easily, it is connected with exhaust tube with the air supply pipe of steam autoclave with the duct of bleeding by making the air feed duct, realization is to the quick air feed of sterilization cassette and bleeding, because the common relatively steriliser combustion space of sterilization cassette is little, realize the full of evacuation and steam easily, and intensification and temperature fall time that special air feed that steriliser adopts and exhaust mode have shortened apparatus, again because the closure member of sterilization cassette makes can close automatically behind its air supply pipe and the exhaust tube disengaging sterilization cassette, cut off the circulation of sterilization cassette and extraneous air, make the apparatus after the sterilization in box, realize aseptic preservation, convenient transportation, avoid the trouble of sterilized instrument parcel, reduced the channel of secondary pollution.In addition, the apparatus that adopts this sterilization cassette to preserve after sterilizing does not have dry requirement to apparatus, as long as can guarantee air supply opening and the dry sealing of bleeding point, has reduced the dry required time of apparatus.The both sides that the delivery outlet in the input port in air feed duct and the duct of bleeding sets up the steam sterilization box separately can make air feed, bleed evenly, and first evacuation can be passed through in addition in no dead angle, and the way of the steam that reinjects makes the distribution of steam in the steam sterilization box more even.Described closure member adopts spool, valve component can make the air vent road and open when air supply pipe and exhaust tube insertion in the duct of bleeding, and closes when extracting, and guarantees sealing effect.The support body that is provided with in the steam sterilization box can make things convenient for putting of medical apparatus and instruments, and makes vapor stream clear and coherent smooth.When can preventing at evacuation, the steam chiller that is provided with between vacuum pump and the stop valve, influences the life-span of vacuum pump with in the steam suction vacuum pump.Stop valve adopts automatically controlled stop valve can realize automatic control.
Description of drawings
Fig. 1 is the front view of steam sterilization box of the present invention.
Fig. 2 is the vertical view of steam sterilization box shown in Figure 1.
Fig. 3 is the left view of steam sterilization box shown in Figure 1.
Fig. 4 has the steam autoclave structural representation of steam sterilization box for the present invention.
Fig. 5 is the gas circuit structure sketch map of steam autoclave of the present invention.
Among the figure
1. steam sterilization box 2. valve groups 3. air filters 4. steam generators
5. vacuum pump 6. automatic control systems 7. cavitys 8. air supply pipes
9. exhaust tube 10. exhaustors
11. box body 12. lids 13. coupling type lockers 14. air feed ducts
Duct 16. spools 17. valve seats 18. back-moving springs 15. bleed
19. steam chiller
2a, 2b, the automatically controlled stop valve of 2c, 2d.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the steam sterilization box 1 of steam autoclave of the present invention, comprise box body 11 and lid 12, described lid 12 is fastened on box body 11, between box body 11 and lid 12, be provided with hermetically-sealed construction and locker, on lid 12, also be provided with the air feed duct 14 and the duct 15 of bleeding, on this air feed duct 14 and the duct 15 of bleeding, be provided with closure member.The input port in described air feed duct 14 is located at a side of lid 12, and described delivery outlet of bleeding duct 15 is located at the opposite side of lid 12.In Fig. 2, described closure member is made of spool 16, valve seat 17 and back-moving spring 18, spool 16 is positioned at an end of back-moving spring 18 and is closed on the valve opening of valve seat 17, described spool 16 lateral hole walls offer the passage that is communicated in lid 12 inboards, and this passage constitutes the part in the described air feed duct 14 or the duct 15 of bleeding.In Fig. 1, Fig. 2 and steam sterilization box 1 shown in Figure 3, air feed duct 14, the duct 15 of bleeding are located on the lid 12, and the in fact above-mentioned air feed duct 14 and the duct 15 of bleeding also can be located on the box body 11.Described closure member also can be check valve.In described box body 11, can be provided with support body.Described hermetically-sealed construction is a rubber seal, and described locker is a coupling type locker 13.
As shown in Figure 4, steam autoclave of the present invention comprises steam sterilization box 1, valve group 2, air filter 3, steam generator 4, vacuum pump 5 and automatic control system 6.In Fig. 4, be provided with at least one cavity that holds steam sterilization box 17 in the steam autoclave, referring to Fig. 5, in described cavity 7, be provided with air supply pipe 8 and exhaust tube 9 corresponding with described air feed duct 14 and the duct 15 of bleeding and that match, described air supply pipe 8 be connected in parallel steam generator 4 and air filter 3, described exhaust tube 9 be connected in parallel an exhaustor 10 and a vacuum pump 5; Between air supply pipe 8 and steam generator 4 and air supply pipe 8 and air filter 3, be respectively equipped with stop valve, front end at exhaustor 10 and vacuum pump 5 is respectively equipped with stop valve, at stop valve described in Fig. 5 is automatically controlled stop valve 2a, 2b, 2c, 2d, and each automatically controlled stop valve 2a, 2b, 2c, 2d and air supply pipe 8, exhaust tube 9 are formed valve group 2.Between described vacuum pump 5 and stop valve, also be provided with steam chiller 19.
Described air supply pipe 8 and exhaust tube 9 also comprise heating pipe joint and exhaust tube joint, this heating pipe joint and exhaust tube joint are connected with the described air feed duct and the duct of bleeding respectively, and at lateral opening, this opening is corresponding with steam sterilization box 1 passage, the faces end head plugging of heating pipe joint and exhaust tube joint.
The present invention has also adopted new intensification and cooling method, it adopts the mode that preheats earlier, promptly being evacuated to the less relatively sterilization cassette 1 of volume earlier is 2.0 1 8.0kPa, then to the sterilization cassette 1 rapid steam of importing, after steam pressure reaches 0.18-0.22Mpa, open the exhaust passage, make outside interior remaining cold air of box and the condensed water delivery cassette, after getting rid of cold air and condensed water, close the exhaust passage, continue to send steam, until reaching pressure 0.20-0.22MPa, temperature 132-135 ℃, keep 3-4min.This mode has guaranteed that the programming rate of apparatus in the box is fast.Following method is adopted in cooling behind the apparatus sterilizing: earlier steam is drained, being evacuated to the box inner air pressure then reaches most till the 2.0-8.0kPa, open the dry air inlet channel of band high efficiency particulate air filter, continue evacuation, make air pass through sterilization cassette rapidly, take away heat in the box through high efficiency filter.When temperature in the box is reduced to below 60 ℃, take out sterilization cassette, sterilization cycle is finished.The characteristics of this process have been to adopt the 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, shortened sterilized instrument and reached the required heating-up time of sterilising temp from room temperature, what reach sterilization back apparatus reduces to 60 ℃ of required times from sterilising temp, thereby improves the turnover rate of apparatus.
Steam autoclave work process of the present invention is as follows: open valve 2d and vacuum pump 5 earlier, shut off valve 2a, valve 2b, valve 2c, to less relatively sterilization cassette 1 evacuation of volume, when reaching the vacuum requirement in the box 1, shut off valve 2d and vacuum pump 5 again, open valve 2b, import steam rapidly to sterilization cassette 1, after steam pressure reaches the certain pressure value, open valve 2c, make outside interior remaining cold air of box and the condensed water delivery cassette, after getting rid of cold air and condensed water, shut off valve 2c continues to send steam, until reaching temperature (as 134 ℃) and the pressure (as 205.8kPa) that sterilization requires, heat-insulation pressure keeping 3-4 minute.Shut off valve 2b opens valve 2c, exhaust steam then; Shut off valve 2c opens valve 2d and vacuum pump 5 again, is evacuated to the box inner air pressure and reaches when vacuum requires in box, open valve 2a, the dry air inlet channel of band high efficiency particulate air filter 3 is opened, continue evacuation, make air pass through sterilization cassette 1 rapidly, take away heat in the box through high efficiency filter.When temperature in the box was reduced to below 60 ℃, shut off valve 2a, valve 2d and vacuum pump 5 took out sterilization cassette 1, and sterilization cycle is finished.
Describe the present invention with way of example above, but the invention is not restricted to above-mentioned specific embodiment, all protection domains that any improvement that the present invention did or modification are all belonged to claim of the present invention.

Claims (9)

1. a steam sterilization technology is characterized in that may further comprise the steps: 1) medical apparatus and instruments is put into hermetic container, and hermetic container is put into steriliser; 2) hermetic container is evacuated to pressure and is 2.0-8.0kPa till; 3) infeed steam to hermetic container, steam pressure is 0.20-0.22MPa, temperature 132-135 ℃, keeps 3-4min; 4) exhaust steam; 5) evacuation, one infeeds filtered air towards hermetic container, reduces to 60 ℃ until temperature; 6) take out hermetic container.
2. according to the described steam sterilization technology of claim 1, it is characterized in that also comprising a preheating step: before step 3), infeed pressure 0.18-0.22MPa steam to hermetic container earlier, discharge rapidly then, get rid of remaining cold air and condensed water.
3. steam autoclave that adopts the described steam sterilization technology of claim 1, it is characterized in that: comprise at least one steam sterilization box, this steam sterilization box comprises box body and lid, described lid is fastened on box body, between box body and lid, be provided with hermetically-sealed construction and locker, on box body or lid, also be provided with the air feed duct and the duct of bleeding, on this air feed duct and the duct of bleeding, be provided with closure member;
In steam autoclave, be provided with the cavity that at least one holds the steam sterilization box, in described cavity, be provided with and the described air feed duct and air supply pipe and the exhaust tube that the duct is corresponding and match of bleeding, described air supply pipe be connected in parallel steam generator and air filter, described exhaust tube be connected in parallel an exhaustor and a vacuum pump; Be respectively equipped with stop valve between air supply pipe and the steam generator and between air supply pipe and the air filter, be respectively equipped with stop valve at the front end of exhaustor and vacuum pump.
4. steam autoclave according to claim 3 is characterized in that: the input port in described steam sterilization box air feed duct is located at a side of lid, and the delivery outlet in its duct of bleeding is located at the opposite side of lid; Described hermetically-sealed construction is a rubber seal, and described locker is the coupling type locker.
5. steam autoclave according to claim 3, it is characterized in that: the closure member of described steam sterilization box is made of spool, valve seat and back-moving spring, spool is positioned at an end of back-moving spring and is closed on the valve opening of valve seat, the lateral hole wall of described spool offers the passage that is communicated in the lid inboard, and this passage constitutes the part in the described air feed duct or the duct of bleeding; And 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 the described air feed duct and the duct of bleeding respectively, and at lateral opening, faces end head plugging.
6. steam autoclave according to claim 3 is characterized in that: be provided with support body in described steam sterilization box box body.
7. steam autoclave according to claim 3 is characterized in that: also be provided with the steam chiller between described vacuum pump and stop valve.
8. steam autoclave according to claim 3 is characterized in that: described stop valve is automatically controlled stop valve.
9. steam autoclave according to claim 8 is characterized in that: described automatically controlled stop valve, vacuum pump and steam generator are controlled automatically by automatic control system.
CNB2005101347320A 2005-12-19 2005-12-19 Steam sterilization process and steam sterilization apparatus employed the same Expired - Fee Related CN100374166C (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101693116A (en) * 2009-10-12 2010-04-14 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN101693115A (en) * 2009-10-12 2010-04-14 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN102423495A (en) * 2011-11-24 2012-04-25 何小平 Pulsed steam sterilization process and steam sterilizer thereof
CN103330953A (en) * 2013-06-10 2013-10-02 山东威高集团医用高分子制品股份有限公司 Biosafety type pulsation vacuum sterilizer
CN106310302A (en) * 2015-06-17 2017-01-11 浙江医药股份有限公司新昌制药厂 RTP container and online sterilization and online drying device comprising RTP container and use method thereof
CN107046803A (en) * 2014-01-29 2017-08-15 特贝特手术有限公司 The method and apparatus of sterilizing
CN109289067A (en) * 2018-11-16 2019-02-01 成都凌英科技有限公司 A kind of instrument sterilizer, apparatus sterilizing system and apparatus sterilizing method
CN110326597A (en) * 2019-07-08 2019-10-15 郑州良弓工程有限公司 A kind of dust inactivation method of granulating
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
US10792602B2 (en) 2014-01-29 2020-10-06 Turbett Surgical, Inc. Sterilizing method and apparatus
US10881997B2 (en) 2014-01-29 2021-01-05 Turbett Surgical, Inc. Method of sterilization verification
US10987438B2 (en) 2014-01-29 2021-04-27 Turbett Surgical, Inc. Sterilizing method and apparatus
CN115068641A (en) * 2022-08-10 2022-09-20 绍兴迈亚塔菌检智能科技有限公司 Electric heating high-pressure sterilization equipment

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US4718463A (en) * 1985-12-20 1988-01-12 Mallinckrodt, Inc. Method of producing prefilled sterile plastic syringes
CN2293328Y (en) * 1996-12-24 1998-10-07 青岛市临床医学研究所 Ventilating efficient sterilizing box
CN2331360Y (en) * 1998-05-22 1999-08-04 徐浩 Medical miniature high-pressure steam sterilizer
JP3586430B2 (en) * 2001-02-23 2004-11-10 ハウス食品株式会社 Processing equipment using labyrinth seal

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101693116A (en) * 2009-10-12 2010-04-14 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN101693115A (en) * 2009-10-12 2010-04-14 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN101693115B (en) * 2009-10-12 2013-09-11 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN101693116B (en) * 2009-10-12 2014-03-05 张家港市华菱医疗设备制造有限公司 Sterilizing process of air filter in damp-warm steam sterilizing cabinet
CN102423495A (en) * 2011-11-24 2012-04-25 何小平 Pulsed steam sterilization process and steam sterilizer thereof
CN102423495B (en) * 2011-11-24 2014-10-01 何德贤 Pulsed steam sterilization process and steam sterilizer thereof
CN103330953A (en) * 2013-06-10 2013-10-02 山东威高集团医用高分子制品股份有限公司 Biosafety type pulsation vacuum sterilizer
CN103330953B (en) * 2013-06-10 2015-05-20 威海威高海盛医用设备有限公司 Biosafety type pulsation vacuum sterilizer
US10987438B2 (en) 2014-01-29 2021-04-27 Turbett Surgical, Inc. Sterilizing method and apparatus
CN107046803A (en) * 2014-01-29 2017-08-15 特贝特手术有限公司 The method and apparatus of sterilizing
US10792602B2 (en) 2014-01-29 2020-10-06 Turbett Surgical, Inc. Sterilizing method and apparatus
US10881997B2 (en) 2014-01-29 2021-01-05 Turbett Surgical, Inc. Method of sterilization verification
US11305222B2 (en) 2014-01-29 2022-04-19 Turbett Surgical, Inc. Sterilizing method and apparatus
US11819791B2 (en) 2014-01-29 2023-11-21 Turbett Surgical, Inc. Method of sterilization verification
CN106310302A (en) * 2015-06-17 2017-01-11 浙江医药股份有限公司新昌制药厂 RTP container and online sterilization and online drying device comprising RTP container and use method thereof
CN109289067A (en) * 2018-11-16 2019-02-01 成都凌英科技有限公司 A kind of instrument sterilizer, apparatus sterilizing system and apparatus sterilizing method
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
CN110326597A (en) * 2019-07-08 2019-10-15 郑州良弓工程有限公司 A kind of dust inactivation method of granulating
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
CN115068641A (en) * 2022-08-10 2022-09-20 绍兴迈亚塔菌检智能科技有限公司 Electric heating high-pressure sterilization equipment
CN115068641B (en) * 2022-08-10 2024-03-22 浙江迈亚塔菌检智能科技有限公司 Electrothermal high-pressure sterilizing equipment

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Assignee: Guangzhou Huili Medical Equipment Co., Ltd.

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