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WO2016127531A1 - Appareil de désinfection et de stérilisation par plasma de la surface d'un endoscope - Google Patents

Appareil de désinfection et de stérilisation par plasma de la surface d'un endoscope Download PDF

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Publication number
WO2016127531A1
WO2016127531A1 PCT/CN2015/081537 CN2015081537W WO2016127531A1 WO 2016127531 A1 WO2016127531 A1 WO 2016127531A1 CN 2015081537 W CN2015081537 W CN 2015081537W WO 2016127531 A1 WO2016127531 A1 WO 2016127531A1
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WO
WIPO (PCT)
Prior art keywords
insulating medium
speculum
insulating
high voltage
ground electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/081537
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English (en)
Chinese (zh)
Inventor
刘东平
张庆丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Dongda Cleaning Technology Co Ltd
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Dalian Dongda Cleaning Technology Co Ltd
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Filing date
Publication date
Application filed by Dalian Dongda Cleaning Technology Co Ltd filed Critical Dalian Dongda Cleaning Technology Co Ltd
Publication of WO2016127531A1 publication Critical patent/WO2016127531A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/14—Plasma, i.e. ionised gases

Definitions

  • the invention relates to the field of plasma disinfection, in particular to a plasma disinfecting device applied to disinfecting a speculum.
  • the speculum is the latest generation of optical fiberscopes with clear vision and simple operation. It is widely used in routine medical examinations such as nasopharyngeal, stomach, and intestines and in the field of minimally invasive surgery. However, due to the soft material, strong bending property, small diameter, and thin lumen of the speculum itself, it is difficult to clean and disinfect the speculum. At present, the number of clinical fiber speculum is limited, the cost of one-time use is high, and the risk of cross-infection is repeated for repeated use. Therefore, the speculum needs to be disinfected and sterilized.
  • the disinfection method mainly uses 2% alkaline glutaraldehyde to disinfect the speculum.
  • the existing disinfection technology can not meet the medical standards, and a new device dedicated to speculum sterilization is needed.
  • the object of the present invention is to provide a device for sterilizing and disinfecting the surface of a speculum by a plasma, which is compact in structure, convenient in use, obvious in effect, simple in process, low in cost, and hygienic and safe.
  • the present invention mainly includes a high voltage electrode, a ground electrode, an insulating medium tube, a wire, a power source, and a high voltage wire, and the ground electrode is made of a conductive metal mesh.
  • the electrode is closely attached to the inner wall of the insulating medium tube, the top end is flush with the top end of the insulating medium tube, the bottom end is protruded from the bottom end of the insulating medium tube, and the ground electrode is grounded through the wire;
  • the high voltage electrode is copper foil or aluminum foil, and the high voltage electrode is tight Wound around the outer wall surface of the insulating medium tube, the upper and lower ends of the high voltage electrode are lower than the nozzle of the insulating medium tube, and the high voltage electrode is connected to the power source through the high voltage line.
  • An insulating shell is arranged on the outside of the device, the insulating shell is a single-open tubular structure, and the top end opening is sleeved with a nut; at the bottom of the insulating shell, three layers of concentric retaining rings are provided, and the inner diameter of the three-layer retaining ring is from the top to the bottom
  • the lower layer is sequentially reduced, and the upper retaining ring cooperates with the high voltage electrode, the middle retaining ring cooperates with the insulating medium tube, and the lower retaining ring cooperates with the ground electrode.
  • the high voltage electrode is made of a metal material having good electrical conductivity, such as a copper foil or an aluminum foil.
  • the ground electrode is made of white steel or stainless steel material, and the ground electrode can change the area according to the diameter and length of the speculum.
  • the insulating medium tube is made of quartz or ceramic or polytetrafluoroethylene.
  • the power source is an alternating current power source or a pulse power source.
  • the length of the high voltage electrode is the same as the length of the speculum inserted into the insulating medium tube.
  • the insulating case is made of hard plastic or quartz or ceramic or polytetrafluoroethylene.
  • the voltage peak-to-peak adjustment range of the AC power source is 0 to 30 KV, and the frequency adjustment range is 1 to 30 KHz.
  • the voltage peak-to-peak adjustment range of the pulse power source is 0 to 20 KV, and the frequency adjustment range is 1 to 10 KHz.
  • the insulating medium tube and the conductive metal mesh are selected to match the size of the sight glass, and then the connected sterilization device is placed in the insulating housing and fixed.
  • the speculum which needs to be sterilized, is placed in a ground electrode inside the insulating medium tube, the ground electrode is made of a conductive metal mesh, and the metal mesh is grounded.
  • the high voltage electrode is connected to the power source to form a high voltage power supply portion, and the high voltage electrode provides a suitable frequency and discharge voltage to generate a plasma active material that can be used for sterilization, such as OH radicals, oxygen atoms, excited state germanium atoms, ozone, etc.
  • the strong electric energy contained in the conductive metal mesh is introduced into the ground through the grounding wire to avoid electrical damage on the surface of the speculum, and only the active material generated by the plasma is used to treat the speculum.
  • the present invention has the following advantages:
  • the atmospheric pressure low-temperature plasma is used to sterilize the speculum without complicated vacuum equipment. It is not only simple in structure, convenient in use, flexible in operation, low in cost, low in energy consumption and high in work efficiency;
  • the method of dielectric barrier discharge greatly increases the processing area of the plasma mirror, improves the sterilization efficiency, and can change the discharge area and shape according to the different treatment objects, which greatly increases the use. Flexibility;
  • the plasma generated by the discharge has a low temperature and does not damage the speculum surface.
  • Figure 1 is a front cross-sectional view of the apparatus of the present invention.
  • Figure 2 is a perspective view of the apparatus of the present invention.
  • Figure 3 is a structural view of the device and the insulative housing of the present invention assembled.
  • Figure 4 is a structural view of an insulating casing of the present invention.
  • Fig. 5 is a view showing the experimental results of Example 1 of the present invention.
  • Fig. 6 is a view showing the experimental results of Example 2 of the present invention.
  • the present invention mainly comprises a high voltage electrode 1, a ground electrode 2, an insulating medium tube 3, a wire 4, a power source 5, and a high voltage wire 6.
  • the ground electrode is made of a conductive metal mesh, and the ground electrode is closely attached.
  • the top end is flush with the top end of the insulating medium tube, the bottom end is protruded from the bottom end of the insulating medium tube, the ground electrode is grounded through the wire;
  • the high voltage electrode is copper foil or aluminum foil, and the high voltage electrode is tightly wound around the insulation
  • the outer wall surface of the dielectric tube, the upper and lower ends of the high voltage electrode are lower than the nozzle of the dielectric tube, and the high voltage electrode is connected to the power source through the high voltage line.
  • an insulating casing 7 is disposed on the outside of the device, the insulating casing is a single-open tubular structure, the top end opening is sleeved with a nut 8; and the bottom of the insulating casing is provided with three layers of concentric gears.
  • Circle 9 the inner diameter of the three-layer retaining ring is reduced from top to bottom, and the upper retaining ring is matched with the high-voltage electrode, and the middle retaining ring Cooperating with the insulating medium tube, the lower retaining ring cooperates with the ground electrode.
  • the ground electrode is made of white steel or stainless steel material, and the ground electrode can change the area according to the diameter and length of the speculum.
  • the insulating medium tube is made of quartz or ceramic or polytetrafluoroethylene.
  • the power source is an alternating current power source or a pulse power source.
  • the voltage peak-to-peak adjustment range of the AC power supply is 0 to 30KV, and the frequency adjustment range is 1 to 30KHz.
  • the voltage peak-to-peak adjustment range of the pulse power supply is 0-20KV, and the frequency adjustment range is 1-10KHz.
  • the length of the high voltage electrode is the same as the length of the speculum inserted into the insulating medium tube.
  • the insulating housing is made of hard plastic or quartz or ceramic or polytetrafluoroethylene.
  • a conductive metal mesh made of stainless steel is used as the ground electrode.
  • the conductive metal mesh has a thickness of 0.5 mm, a mesh diameter of 2 mm, a cylindrical diameter of 6 mm, and a cylindrical length of 30 cm.
  • a thin copper foil having a thickness of 0.3 mm was used as the high voltage electrode.
  • the insulating material tube is made of quartz material.
  • the length of the insulating medium tube is 30cm, and the inner diameter of the insulating medium tube is 7mm, the outer diameter is 7.5mm, and the wall thickness is 0.5mm.
  • the pulse power source is selected as the power source, and the discharge voltage of the pulse power source is 15 kV, and the discharge frequency is 10 kHz.
  • the selected speculum has a length of 30 cm and an outer diameter of 5 mm.
  • a medical speculum coated with E. coli was placed in a ground electrode made of a conductive metal mesh, and a voltage was applied with a peak-to-peak voltage of 15 kV and a discharge frequency of 10 kHz.
  • Fig. 5 is a set of experimental effect diagrams of the present invention for sterilization of E. coli-coated speculum.
  • the voltages are the same, the discharge frequency is the same, and the processing time is different.
  • the processing time is 0S, 10S, 20S, 30S, 45S, 60S, 90S, 120S, 180S, and 0S is an unprocessed sample. It can be clearly seen from FIG. 5 that the present invention can effectively realize the sterilization treatment of the speculum. Moreover, the longer the treatment time, the better the sterilization effect.
  • a conductive metal mesh made of a copper mesh is used as the ground electrode.
  • the conductive metal mesh has a thickness of 0.5 mm, a mesh diameter of 0.5 mm, a cylindrical shape of 4 mm in diameter, and a length of 40 cm.
  • a thin aluminum foil having a thickness of 0.2 mm was used as the high voltage electrode.
  • the insulating material tube is made of quartz material.
  • the length of the insulating medium tube is 40 cm, the inner diameter of the insulating medium tube is 4.5 mm, the outer diameter is 5.1 mm, and the wall thickness is 0.6 mm.
  • the AC power source is selected as the power source, and the discharge voltage of the AC power source is 10 kV, and the discharge frequency is 8 kHz.
  • the selected speculum has a length of 40 cm and an outer diameter of 2 mm.
  • Fig. 6 is another set of experimental effect diagrams of the present invention for sterilizing E. coli-coated speculum.
  • the discharge voltage is different, the discharge frequency is the same, and the processing time is the same.
  • the discharge frequency is 8 kHz, and the processing time is 1 min.
  • the discharge voltages were 5 kV, 6 kV, 7 kV, 8 kV, 9 kV, 10 kV, and 11 kV, respectively. It can be seen from FIG. 6 that the present invention can effectively realize the speculum sterilization treatment, and the higher the discharge voltage, the better the sterilization effect.

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

La présente invention concerne un appareil de désinfection et de stérilisation par plasma de la surface d'un endoscope qui comprend une électrode haute tension (1), une électrode de masse (2), un tuyau de milieu isolant (3), un fil (4), une alimentation électrique (5) et une ligne haute tension (6), l'électrode de masse (2) étant constituée d'un filet métallique conducteur, l'électrode de masse (2) est étroitement fixée sur la paroi interne du tuyau de milieu isolant (3), une extrémité supérieure de celle-ci étant au même niveau qu'une extrémité supérieure du tuyau de milieu isolant (3) et une extrémité inférieure de celle-ci étant en saillie d'une extrémité inférieure du tuyau de milieu isolant (3), et l'électrode de masse (2) est mise à la terre par l'intermédiaire du fil (4) ; et l'électrode haute tension (1) est une feuille de cuivre ou une feuille d'aluminium, l'électrode haute tension (1) est enroulée sur la surface de la paroi extérieure du tuyau de milieu isolant (3), les extrémités supérieure et inférieure de l'électrode haute tension (1) sont toutes les deux plus basses qu'une embouchure de tuyau du tuyau de milieu isolant (3), et l'électrode haute tension (1) est raccordée à l'alimentation électrique (5) par l'intermédiaire de la ligne haute tension (6). Une coque isolante (7) est emmanchée sur l'extérieur de l'appareil, la coque isolante (7) se trouvant dans une structure de tuyau à embouchure unique, et un écrou (8) est emmanché au niveau d'une ouverture d'une extrémité supérieure de la coque isolante (7) ; et trois couches de bagues de retenue concentriques (9) sont prévues au niveau de la partie inférieure de la coque isolante (7), les diamètres intérieurs des trois couches de bagues de retenue (9) diminuant successivement de haut en bas. L'appareil présente les avantages d'une construction simple, d'une praticité d'utilisation, d'un faible coût, d'une faible consommation d'énergie, d'un rendement élevé, de l'absence d'endommagement de l'endoscope, etc.
PCT/CN2015/081537 2015-02-09 2015-06-16 Appareil de désinfection et de stérilisation par plasma de la surface d'un endoscope Ceased WO2016127531A1 (fr)

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CN201510066970.6 2015-02-09
CN201510066970.6A CN104661422A (zh) 2015-02-09 2015-02-09 一种等离子体对窥镜表面消毒杀菌的装置

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Cited By (5)

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CN106231771A (zh) * 2016-08-31 2016-12-14 大连民族大学 一种等离子体喉镜杀菌装置的保护机构
WO2018202759A3 (fr) * 2017-05-05 2018-12-27 Creo Medical Limited Appareil de stérilisation d'un canal d'instrument d'un dispositif d'examen chirurgical
CN110572924A (zh) * 2019-08-15 2019-12-13 大连理工大学 一种滚动果蔬表面微生物控制的等离子体系统
CN115023018A (zh) * 2022-03-18 2022-09-06 大连理工大学 一种用于模拟边界局域模的放电电极
CN116647973A (zh) * 2023-06-08 2023-08-25 南通大学 一种在线处理大口径管状编织物常压等离子体装置

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CN104661422A (zh) * 2015-02-09 2015-05-27 大连民族学院 一种等离子体对窥镜表面消毒杀菌的装置
US11896204B2 (en) 2015-09-07 2024-02-13 Plasmatica Ltd. Methods and systems for providing plasma treatments to optical surfaces
US11896203B2 (en) 2015-09-07 2024-02-13 Plasmatica Ltd. Methods and systems for providing plasma treatments to optical surfaces
US11246480B2 (en) 2015-09-07 2022-02-15 Plasmatica Ltd. Preventing fog on a medical device viewport
CN105396227B (zh) * 2015-11-11 2018-09-21 大连民族大学 一种医用阵列式微等离子体皮肤治疗装置
CN105744713B (zh) * 2016-03-28 2018-10-23 大连民族大学 一种阵列针-板式液相等离子体射流发生装置
CN106115879A (zh) * 2016-08-11 2016-11-16 大连民族大学 一种对液体活化的等离子体发生装置
CN106729815A (zh) * 2016-12-12 2017-05-31 刘欣妮 一种挂壁式等离子体牙刷消毒器
KR102077208B1 (ko) * 2018-07-31 2020-02-14 한국기계연구원 저온 플라즈마 표면처리 장치
CN111150863B (zh) * 2020-02-26 2025-03-25 邦士医疗科技股份有限公司 一种大气压低温等离子体快速灭菌装置和灭菌方法
CN111432543A (zh) * 2020-03-23 2020-07-17 河北大学 一种产生大面积稳定可控等离子体的装置和方法
CN112843278B (zh) * 2021-04-12 2024-05-28 安徽工业大学 一种手持式医用冷密空气等离子体射流喷枪
EP4326349A4 (fr) 2021-04-22 2025-01-15 Plasmatica Ltd. Procédés et systèmes pour fournir des traitements par plasma à des surfaces optiques
CN114504668A (zh) * 2022-03-13 2022-05-17 赵益 一种用于耳鼻喉道的等离子体消毒杀菌装置
KR102674911B1 (ko) * 2022-09-01 2024-06-13 이태훈 저온상압 플라즈마를 이용한 임플란트 표면개질 방법

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CN106231771A (zh) * 2016-08-31 2016-12-14 大连民族大学 一种等离子体喉镜杀菌装置的保护机构
WO2018202759A3 (fr) * 2017-05-05 2018-12-27 Creo Medical Limited Appareil de stérilisation d'un canal d'instrument d'un dispositif d'examen chirurgical
US11541140B2 (en) 2017-05-05 2023-01-03 Creo Medical Limited Apparatus for sterilising an instrument channel of a surgical scoping device
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CN115023018A (zh) * 2022-03-18 2022-09-06 大连理工大学 一种用于模拟边界局域模的放电电极
CN115023018B (zh) * 2022-03-18 2024-04-16 大连理工大学 一种用于模拟边界局域模的放电电极系统
CN116647973A (zh) * 2023-06-08 2023-08-25 南通大学 一种在线处理大口径管状编织物常压等离子体装置

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