手提式高压蒸汽灭菌器（实验室级）法医实验室与刑事技术合规应用介绍
作者：毕思特科技 来源：毕思特科技 浏览数：13 发布时间：2026/4/9 8:57:24
手提式高压蒸汽灭菌器（实验室级）法医实验室与刑事技术合规应用介绍
【重要合规前置声明】本设备为法医 DNA 实验室、刑事技术检验专用的生物安全基础装备，仅面向具备法定法医物证鉴定、刑事技术检验资质的公安、检察、司法行政、司法鉴定等国家机关及授权实验室定向研发、生产与销售，不向任何个人、无资质企业及非授权单位提供。本设备的安装、操作与应用，必须严格遵守《中华人民共和国生物安全法》《中华人民共和国司法鉴定程序通则》《法庭科学 DNA 实验室规范》《医疗机构消毒技术规范》《实验室生物安全通用要求》等国家法律法规与行业技术标准，必须由经过专业培训的实验室人员规范操作，严禁无资质单位和个人违规使用，严禁因操作不当导致的生物安全风险与物证污染事故。
产品概述
手提式高压蒸汽灭菌器（实验室级），是一款采用电加热方式的专业压力饱和蒸汽灭菌设备，专为刑事科学技术实验室、法医司法鉴定机构的无菌化操作、生物检材处理全流程防污染需求深度定制。本设备的核心功能是通过密闭腔体产生的高温高压饱和蒸汽环境，对法医实验器械、玻璃器皿、生物物证采样工具、培养基及耐热物证处理耗材，进行快速、彻底、可重复的消毒灭菌处理，可高效灭活微生物、细菌芽孢、病毒、核酸酶及外源 DNA 污染，从根源上消除生物检材处理过程中的交叉污染风险。
作为刑事技术实验室生物安全体系的基础性核心装备，本设备是保障法医 DNA 分析、微生物检验、毒物毒品分析等鉴定工作科学性、准确性、可重复性的关键支撑，可有效杜绝外源污染导致的检验结果偏差、物证失效等问题，确保司法鉴定结果的法庭可采性，同时为实验室人员职业健康、实验室生物安全合规管理提供全面保障。设备采用手提式紧凑化设计，兼顾了实验室固定工位使用与移动实验室、现场勘查车的应急使用需求，完美适配刑事技术实验室、现场物证预处理中心等多元化应用场景。
技术原理
本设备核心基于压力饱和蒸汽高温湿热灭菌原理工作，其灭菌效果的稳定性、彻底性，是保障法医实验室防交叉污染、检验结果合规有效的核心基础，完全符合法庭科学实验室对无菌操作、物证无污染处理的严苛技术要求。
设备通过电加热元件，对密闭灭菌室内的定量纯化水进行加热，使其汽化产生饱和水蒸气；随着持续加热，密闭腔体内的蒸汽压力与温度同步上升，严格遵循饱和蒸汽压力 - 温度一一对应关系，在设定的 0.142MPa 工作压力下，灭菌室内温度可稳定达到 126℃，最高设计温度可达 128℃、设计压力 0.165MPa，可根据灭菌需求实现稳定的温压控制。
在此高温高压的湿热环境中，微生物（包括细菌、真菌、芽孢、病毒等）的蛋白质与核酸结构会发生不可逆的凝固变性，酶系统完全失活，遗传物质遭到不可逆破坏，从而在设定的灭菌时间内（通常 15-30 分钟）实现彻底的灭菌效果。同时，该高温高压饱和蒸汽环境可高效灭活法医微量 DNA 检验中最关键的核酸酶与外源游离 DNA，从根源上杜绝实验器械、耗材携带的外源污染对微量生物检材检验结果的干扰，确保 STR 分型、DNA 序列分析等鉴定结果的真实性与准确性。
核心功能与合规实战价值
食品级不锈钢腔体结构，彻底杜绝残留污染与腐蚀风险
设备灭菌内胆、锅体及所有与蒸汽、灭菌物品接触的关键部件，均采用食品级 SUS304 不锈钢材质，具备优异的耐酸、耐碱、耐腐蚀性能，可适配法医实验室含生物试剂、化学试剂的器械、耗材灭菌需求，长期频繁使用无锈蚀、无变形，使用寿命长。腔体内壁采用镜面抛光工艺，表面光滑无死角，易于清洁消毒，可有效防止灭菌后残留的外源 DNA、微生物、试剂成分造成的二次污染，完美适配法医微量生物检材检验对 “零污染” 的极致要求，从硬件层面保障每一次灭菌循环的洁净度与可靠性。
多重智能安全防护机制，全方位保障设备运行与人员操作安全
设备配备全套工业级安全防护系统，全方位覆盖运行全流程的安全风险防控：配备超压自动泄压安全阀，当腔体内压力超过安全阈值时可自动开启泄压，杜绝超压运行风险；搭载清晰易读的双刻度二类计数压力表，可实时、直观显示腔体内工作压力与对应温度，明确标注安全运行范围，操作人员可全程监控设备运行状态；内置低水位自动断电保护系统，当腔体水位低于安全阈值时，自动切断加热电源并发出预警，有效防止加热管干烧损坏，避免设备故障与安全事故；采用食品级自涨式硅胶密封圈，可随腔体内压力升高自动贴合密封面，有效保证腔体密封性，提升热效率与灭菌效果，同时大幅简化了密封盖的开启与闭合操作，降低操作门槛。
手提式便携紧凑设计，适配多场景灵活应用需求
设备整机采用紧凑化一体化设计，额定容积 18L，外形尺寸为直径约 390mm、高度约 530mm，采用加固型手提式结构，重量轻盈，便于在实验室不同功能分区之间移动，也可轻松收纳于实验室操作台、移动勘查车、现场移动实验室内。设备无需复杂的安装调试，接入标准 AC220V 市电即可快速启动运行，既适配法医 DNA 实验室、微生物检验室的固定工位常态化使用，也可满足偏远案发现场、重大突发案事件应急处置、野外移动实验室的现场灭菌需求，实现 “哪里需要、哪里部署” 的灵活应用，彻底解决了传统大型立式灭菌器无法移动、无法适配现场应急使用的痛点。
标准化稳定灭菌循环，契合司法鉴定全流程合规性要求
设备可提供稳定可控的灭菌参数，最高工作温度 126℃、对应工作压力 0.142MPa，完全符合《医疗消毒卫生标准》《法庭科学 DNA 实验室规范》对实验室器械、耗材灭菌的相关要求，可实现标准化、可重复的灭菌循环，确保每一批次的灭菌效果稳定、一致、可追溯。设备的灭菌参数、运行记录可同步存档，可与法医实验室 LIMS 信息管理系统对接，实现灭菌流程的全流程可追溯，完全符合司法鉴定机构资质认定、实验室认可对设备运行、检验流程可追溯的核心要求，保障每一份鉴定结果的合法性与法庭可采性。同时设备加热功率 2KW，升温速度快，可快速达到设定灭菌温压参数，大幅缩短灭菌周期，提升实验室物证处理与检验工作的整体效率。
法定授权范围内的合规应用场景
本设备所有应用场景均严格遵守国家生物安全相关法律法规与刑事技术实验室管理规范，仅可在具备法定资质的实验室、由专业培训人员规范操作，核心合规应用场景包括五大类：
法医 DNA 实验室器械与耗材标准化灭菌
作为法医 DNA 实验室的必备基础装备，主要用于 DNA 提取、扩增、分型检验全流程所用器械与耗材的灭菌处理，包括离心管、吸头、剪刀、镊子、研磨杵、组织匀浆器等塑料及金属器械，可彻底灭活器械上残留的外源 DNA、核酸酶与微生物，从根源上杜绝不同检材之间、不同批次实验之间的交叉污染，保障微量血迹、唾液斑、脱落上皮细胞等疑难微量检材的 STR 分型结果准确、可靠，避免因外源污染导致的检验结果错误、物证失效，为刑事案件个体识别、亲缘关系鉴定提供准确的科学依据。
法医微生物与毒物检验实验室无菌保障
在法医微生物检验、投毒案件、食物中毒案件、传染病相关案件的物证检验工作中，用于微生物检验用的培养皿、试管、采样棉签、生理盐水、培养基等耗材与试剂的高压灭菌，为微生物分离、培养、鉴定提供无菌的实验材料与器皿，杜绝外源微生物污染对检验结果的干扰；同时可对毒物毒品检验所用的容器、进样小瓶、研磨器械进行灭菌灭活处理，防止生物源性杂质、微生物代谢产物对毒物定性定量分析结果的干扰，保障毒理学分析、毒物检验结果的科学性与准确性。
刑事现场物证采集工具的规范化灭菌处理
针对刑事案件现场生物物证采集所用的止血钳、镊子、取样铲、物证卡尺、物证剪、可重复使用物证袋等重复使用的勘查工具，进行定期集中灭菌与跨现场使用前的彻底灭菌，可有效灭活工具上残留的前序现场生物检材、外源 DNA，防止不同案发现场之间、不同物证之间的交叉污染，确保现场提取的生物检材的原始性、唯一性，完全符合《公安机关刑事案件现场勘验检查规则》对物证提取、保全的规范性要求，保障现场提取的物证具备完整的司法证据效力。
实验室生物安全防护与废弃物无害化处理
用于法医实验室生物安全风险防控，对接触过人体组织、血液、体液等生物检材的废弃实验耗材（非锐器）、污染器械进行灭菌灭活处理，彻底灭活其中的病原微生物，降低实验室生物安全风险，防止实验室感染事件发生，完全符合《实验室生物安全通用要求》的相关管理规定；同时可对接触过烈性传染病、高致病性病原微生物相关检材的器械、废弃物进行彻底灭菌，保障实验室操作人员的职业健康与周边环境的生物安全，实现实验室废弃物的合规化预处理。
移动实验室与野外现场应急灭菌处置
依托手提式便携设计，可部署于现场勘查车、移动法医实验室、野外案发现场临时处置点，在偏远地区、重大突发案事件、灾害事故现场，对现场物证采集工具、一次性耗材、应急检验器械进行现场快速灭菌，保障现场应急物证采集、快速检验工作的规范性，防止现场环境中的外源污染对物证检验结果造成干扰，为现场快速侦查、应急处置提供及时的无菌保障，完美适配野外、无固定实验室条件下的应急勘查需求。
核心技术参数
灭菌方式为电加热产生压力饱和蒸汽湿热灭菌，额定容积 18 升，灭菌室内部尺寸为直径 280mm × 深度 290mm。工作温压参数方面，最高工作温度 126℃，对应工作压力 0.142MPa；设计温度 128℃，设计压力 0.165MPa。电源与功率参数为 AC 220V ±10%，50Hz ±2%，额定加热功率 2KW。主体结构材质方面，灭菌内胆、锅体均采用 SUS304 食品级不锈钢材质。安全防护装置包含超压自泄安全阀、双刻度二类计数压力表、低水位自动断电保护、食品级自涨式硅胶密封圈。整机外形尺寸为直径约 390mm，高度约 530mm，采用手提式一体化紧凑设计，支持固定工位使用与移动便携部署。
合规实战应用案例
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某市公安局刑事技术支队法医 DNA 实验室，主要承担全市刑事案件生物物证检验、DNA 数据库建设、未知名尸体身源认定等工作，日常需处理大量盗窃、性侵、命案等案件的微量脱落细胞、陈旧骨骼等疑难检材，对实验室防交叉污染要求极高。此前实验室使用的大型立式灭菌器仅能在核心实验区使用，无法满足样本预处理区、物证接收区的分散灭菌需求，且多次出现微量检材检验结果受外源 DNA 污染的问题，影响案件侦办效率。
该实验室引入本手提式高压蒸汽灭菌器后，分别部署于物证接收区、样本预处理区、DNA 提取区，实现了不同功能分区的独立灭菌处理，从根源上杜绝了器械、耗材跨区域流转造成的交叉污染。实验室人员针对微量检材处理所用的镊子、剪刀、研磨杵等器械，采用 126℃/30 分钟的标准化灭菌程序，可彻底灭活器械上残留的外源 DNA 与核酸酶，疑难微量检材的 STR 分型成功率从原来的 72% 提升至 94%，有效解决了外源污染导致的检验结果偏差问题。在后续的系列跨区域盗窃案件、命案侦办中，实验室通过该设备保障了检验全流程的无菌无污染，成功从多起案件的微量接触性检材中获得了完整的嫌疑人 DNA 分型，为案件侦破提供了关键的科学证据，同时设备的运行记录、灭菌参数可完整存档，完全符合司法鉴定资质认定的相关要求，保障了所有检验结果的法庭可采性。
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某市发生一起重大突发食品安全事件，涉及多个区县，大量受害人出现中毒症状，急需对涉案食品、呕吐物、环境样本进行微生物检验，锁定致病病原。事件发生地位于偏远区县，当地无符合资质的微生物检验实验室，需市公安司法鉴定中心派出移动检验团队赶赴现场开展应急检验。检验团队携带本手提式高压蒸汽灭菌器赶赴现场，在临时搭建的移动实验室内，快速完成了采样棉签、培养皿、试管、生理盐水等耗材的现场灭菌处理，为现场微生物分离培养、快速检验提供了无菌保障，有效杜绝了现场环境中的杂菌污染对检验结果的干扰。
通过该设备的现场快速灭菌，检验团队在 24 小时内完成了所有涉案样本的采集、接种、培养与检验，成功锁定了致病微生物与污染源头，为事件的应急处置、受害人救治、案件侦办提供了关键的科学依据。设备的手提式便携设计、快速启动能力、稳定的灭菌效果，完美适配了野外应急现场的使用需求，解决了无固定实验室条件下的无菌耗材供应难题，圆满完成了本次突发公共事件的应急检验保障任务。
Application Introduction of Portable Autoclave (Laboratory Grade) in Forensic Laboratory and Criminal Technology
【Important Compliance Pre-Declaration】This equipment is the basic biosafety equipment dedicated to forensic DNA laboratories and criminal technical inspection. It is only developed, produced and sold for state organs and authorized laboratories with legal forensic material evidence identification and criminal technical inspection qualifications, including public security organs, procuratorates, judicial administrative organs, and judicial authentication institutions, and will not be provided to any individual, unqualified enterprise or non-authorized unit. The installation, operation and application of this equipment must strictly abide by national laws, regulations and industry technical standards such as the Biosafety Law of the People's Republic of China, General Rules for Judicial Authentication Procedures of the People's Republic of China, Forensic Science DNA Laboratory Specification, Technical Specification for Disinfection of Medical Institutions, and General Requirements for Laboratory Biosafety. It must be operated in a standardized manner by professionally trained laboratory personnel. It is strictly prohibited for unqualified units and individuals to use it in violation of regulations, and it is strictly prohibited to cause biosafety risks and physical evidence pollution accidents due to improper operation.
Product Overview
The Portable Autoclave (Laboratory Grade) is a professional pressure saturated steam sterilization equipment adopting electric heating mode, which is deeply customized for the aseptic operation of criminal science and technology laboratories and forensic judicial authentication institutions, as well as the anti-pollution requirements of the whole process of biological evidence processing. The core function of this equipment is to carry out fast, thorough and repeatable disinfection and sterilization of forensic experimental instruments, glassware, biological evidence sampling tools, culture media and heat-resistant evidence processing consumables through the high-temperature and high-pressure saturated steam environment generated by the closed cavity. It can efficiently inactivate microorganisms, bacterial spores, viruses, nucleases and exogenous DNA pollution, and fundamentally eliminate the risk of cross-contamination in the process of biological evidence processing.
As the core basic equipment of the biosafety system of criminal technology laboratories, this equipment is the key support to ensure the scientificity, accuracy and repeatability of forensic DNA analysis, microbiological inspection, toxic and drug analysis and other identification work. It can effectively eliminate the deviation of inspection results and invalidation of physical evidence caused by exogenous pollution, ensure the court admissibility of judicial identification results, and provide comprehensive guarantee for the occupational health of laboratory personnel and the compliance management of laboratory biosafety. The equipment adopts a portable compact design, which takes into account the use of fixed stations in the laboratory and the emergency use needs of mobile laboratories and on-site investigation vehicles, and perfectly adapts to diversified application scenarios such as criminal technology laboratories and on-site evidence pretreatment centers.
Technical Principle
The core of the equipment works based on the high-temperature moist heat sterilization principle of pressure saturated steam. The stability and thoroughness of its sterilization effect are the core basis to ensure anti-cross contamination and compliance and effectiveness of inspection results in forensic laboratories, which fully meets the stringent technical requirements of forensic science laboratories for aseptic operation and pollution-free treatment of physical evidence.
The equipment heats the quantitative purified water in the closed sterilization chamber through the electric heating element, which is vaporized to produce saturated water vapor. With continuous heating, the steam pressure and temperature in the closed cavity rise synchronously, strictly following the one-to-one correspondence between saturated steam pressure and temperature. Under the set working pressure of 0.142MPa, the temperature in the sterilization chamber can stably reach 126℃, the maximum design temperature can reach 128℃, and the design pressure is 0.165MPa, which can realize stable temperature and pressure control according to sterilization requirements.
In this high-temperature and high-pressure moist heat environment, the protein and nucleic acid structure of microorganisms (including bacteria, fungi, spores, viruses, etc.) will undergo irreversible coagulation and denaturation, the enzyme system will be completely inactivated, and the genetic material will be irreversibly damaged, so as to achieve a thorough sterilization effect within the set sterilization time (usually 15-30 minutes). At the same time, the high-temperature and high-pressure saturated steam environment can efficiently inactivate nucleases and exogenous free DNA, which are the most critical in forensic trace DNA inspection, fundamentally eliminating the interference of exogenous pollution carried by experimental instruments and consumables on the inspection results of trace biological samples, and ensuring the authenticity and accuracy of identification results such as STR typing and DNA sequence analysis.
Core Functions and Compliance Practical Value
Food-Grade Stainless Steel Cavity Structure, Completely Eliminating Residual Pollution and Corrosion Risks
The sterilization inner tank, pot body and all key components in contact with steam and sterilized items are made of food-grade SUS304 stainless steel, which has excellent acid resistance, alkali resistance and corrosion resistance. It can adapt to the sterilization needs of instruments and consumables containing biological reagents and chemical reagents in forensic laboratories, without rust or deformation after long-term frequent use, and has a long service life. The inner wall of the cavity adopts mirror polishing technology, with smooth surface and no dead angle, which is easy to clean and disinfect, and can effectively prevent secondary pollution caused by residual exogenous DNA, microorganisms and reagent components after sterilization. It perfectly adapts to the extreme requirements of "zero pollution" for forensic trace biological evidence inspection, and ensures the cleanliness and reliability of each sterilization cycle from the hardware level.
Multiple Intelligent Safety Protection Mechanisms, Fully Ensuring Equipment Operation and Personnel Operation Safety
The equipment is equipped with a full set of industrial-grade safety protection systems, covering the safety risk prevention and control of the whole operation process. It is equipped with an overpressure automatic pressure relief safety valve, which can automatically open to release pressure when the pressure in the cavity exceeds the safety threshold to eliminate the risk of overpressure operation. It is equipped with a clear and easy-to-read double-scale type II counting pressure gauge, which can display the working pressure and corresponding temperature in the cavity in real time and intuitively, clearly mark the safe operation range, and the operator can monitor the equipment operation status throughout the process. It has a built-in low water level automatic power-off protection system. When the water level in the cavity is lower than the safety threshold, it automatically cuts off the heating power supply and sends out an early warning, effectively preventing dry burning damage of the heating tube and avoiding equipment failure and safety accidents. It adopts food-grade self-expanding silicone sealing ring, which can automatically fit the sealing surface with the increase of pressure in the cavity, effectively ensuring the sealing of the cavity, improving thermal efficiency and sterilization effect, and greatly simplifying the opening and closing operation of the sealing cover and reducing the operation threshold.
Portable Compact Design, Adapting to Flexible Application Requirements in Multiple Scenarios
The whole equipment adopts a compact integrated design with a rated volume of 18L, an overall size of about 390mm in diameter and 530mm in height. It adopts a reinforced portable structure with light weight, which is convenient to move between different functional areas of the laboratory, and can also be easily stored in the laboratory operating table, mobile investigation vehicle and on-site mobile laboratory. The equipment does not need complex installation and debugging, and can be quickly started and operated when connected to the standard AC220V mains power. It is not only suitable for the fixed station normal use of forensic DNA laboratories and microbiological inspection rooms, but also can meet the on-site sterilization needs of remote crime scenes, major emergency incidents, and field mobile laboratories, realizing the flexible application of "where needed, where deployed", and completely solving the pain point that traditional large vertical autoclaves cannot be moved and cannot adapt to on-site emergency use.
Standardized and Stable Sterilization Cycle, Meeting the Compliance Requirements of the Whole Process of Judicial Authentication
The equipment can provide stable and controllable sterilization parameters, with the maximum working temperature of 126℃ and corresponding working pressure of 0.142MPa, which fully complies with the relevant requirements of Medical Disinfection and Health Standard and Forensic Science DNA Laboratory Specification for the sterilization of laboratory instruments and consumables. It can realize standardized and repeatable sterilization cycles, ensuring that the sterilization effect of each batch is stable, consistent and traceable. The sterilization parameters and operation records of the equipment can be archived synchronously, and can be connected with the LIMS information management system of the forensic laboratory to realize the traceability of the whole sterilization process, which fully complies with the core requirements of the qualification certification of judicial authentication institutions and laboratory accreditation for equipment operation and inspection process traceability, and ensures the legality and court admissibility of each identification result. At the same time, the heating power of the equipment is 2KW, with fast heating speed, which can quickly reach the set sterilization temperature and pressure parameters, greatly shortening the sterilization cycle and improving the overall efficiency of physical evidence processing and inspection in the laboratory.
Practical Application Scenarios Within the Scope of Statutory Authorization
All application scenarios of this equipment strictly abide by the relevant national laws and regulations on biosafety and the management specifications of criminal technology laboratories, and can only be operated in a standardized manner by professionally trained personnel in laboratories with statutory qualifications. The core compliant application scenarios include five categories:
Standardized Sterilization of Instruments and Consumables in Forensic DNA Laboratory
As a necessary basic equipment for forensic DNA laboratories, it is mainly used for sterilization of instruments and consumables used in the whole process of DNA extraction, amplification and typing inspection, including plastic and metal instruments such as centrifuge tubes, pipette tips, scissors, tweezers, grinding pestles, tissue homogenizers, etc. It can completely inactivate exogenous DNA, nucleases and microorganisms remaining on the instruments, fundamentally eliminate cross-contamination between different samples and different batches of experiments, and ensure the accurate and reliable STR typing results of difficult trace samples such as trace blood stains, saliva stains, exfoliated epithelial cells, etc. It avoids the error of inspection results and invalidation of physical evidence caused by exogenous pollution, and provides an accurate scientific basis for individual identification and kinship identification in criminal cases.
Aseptic Guarantee of Forensic Microbiology and Toxicology Inspection Laboratory
In the inspection of forensic microbiology, poisoning cases, food poisoning cases, and infectious disease-related cases, it is used for autoclaving of consumables and reagents such as petri dishes, test tubes, sampling swabs, normal saline, and culture medium for microbiological inspection, providing sterile experimental materials and vessels for the isolation, culture and identification of microorganisms, and eliminating the interference of exogenous microbial pollution on the inspection results. At the same time, it can sterilize and inactivate the containers, injection vials and grinding instruments used in toxic and drug inspection, to prevent the interference of biological impurities and microbial metabolites on the qualitative and quantitative analysis results of poisons, and ensure the scientificity and accuracy of toxicological analysis and poison inspection results.
Standardized Sterilization of Criminal Scene Evidence Collection Tools
For the reusable investigation tools such as hemostatic forceps, tweezers, sampling shovels, evidence calipers, evidence scissors and reusable evidence bags used for biological evidence collection at criminal case scenes, regular centralized sterilization and thorough sterilization before cross-scene use are carried out, which can effectively inactivate the biological evidence and exogenous DNA of the previous scene remaining on the tools, prevent cross-contamination between different crime scenes and different physical evidence, ensure the originality and uniqueness of the biological evidence extracted on the scene, fully comply with the normative requirements of the Rules for On-Site Inspection of Criminal Cases of Public Security Organs for the extraction and preservation of physical evidence, and ensure that the physical evidence extracted on the scene has complete judicial evidence validity.
Laboratory Biosafety Protection and Harmless Treatment of Waste
It is used for the biosafety risk prevention and control of forensic laboratories, to sterilize and inactivate the waste experimental consumables (non-sharp instruments) and contaminated instruments that have been in contact with human tissues, blood, body fluids and other biological evidence, completely inactivate the pathogenic microorganisms in them, reduce the biosafety risk of the laboratory, prevent the occurrence of laboratory infection events, and fully comply with the relevant management regulations of the General Requirements for Laboratory Biosafety. At the same time, it can thoroughly sterilize the instruments and wastes that have been in contact with the samples related to virulent infectious diseases and highly pathogenic microorganisms, ensure the occupational health of laboratory operators and the biosafety of the surrounding environment, and realize the compliant pretreatment of laboratory wastes.
Mobile Laboratory and Field On-Site Emergency Sterilization Disposal
Relying on the portable design, it can be deployed in on-site investigation vehicles, mobile forensic laboratories, and temporary disposal points of field crime scenes. In remote areas, major emergencies, and disaster accident scenes, it can carry out on-site rapid sterilization of on-site evidence collection tools, disposable consumables, and emergency inspection instruments, ensure the standardization of on-site emergency evidence collection and rapid inspection work, prevent the interference of exogenous pollution in the on-site environment on the evidence inspection results, and provide timely aseptic guarantee for on-site rapid investigation and emergency disposal, perfectly adapting to the emergency investigation needs in the field and without fixed laboratory conditions.
Core Technical Parameters
The sterilization method is moist heat sterilization by pressure saturated steam generated by electric heating, with a rated volume of 18L, and the internal size of the sterilization chamber is 280mm in diameter × 290mm in depth. In terms of working temperature and pressure parameters, the maximum working temperature is 126℃, corresponding to the working pressure of 0.142MPa; the design temperature is 128℃, and the design pressure is 0.165MPa. The power supply and power parameters are AC 220V ±10%, 50Hz ±2%, with a rated heating power of 2KW. In terms of the main structure material, the sterilization inner tank and the pot body are made of food-grade SUS304 stainless steel. The safety protection devices include an overpressure self-relief safety valve, a double-scale type II counting pressure gauge, a low water level automatic power-off protection, and a food-grade self-expanding silicone sealing ring. The overall size of the machine is about 390mm in diameter and 530mm in height. It adopts a portable integrated compact design, supporting fixed station use and mobile portable deployment.
Compliance Practical Application Cases
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The Forensic DNA Laboratory of the Criminal Technology Detachment of the Municipal Public Security Bureau is mainly responsible for the biological evidence inspection of criminal cases in the city, the construction of DNA database, and the identification of unknown corpse sources. It daily needs to handle a large number of difficult samples such as trace exfoliated cells and old bones from theft, sexual assault and homicide cases, which has extremely high requirements for anti-cross contamination in the laboratory. Previously, the large vertical autoclave used in the laboratory could only be used in the core experimental area, which could not meet the decentralized sterilization needs of the sample pretreatment area and the evidence receiving area. There were many problems that the test results of trace samples were contaminated by exogenous DNA, which affected the efficiency of case investigation.
After the introduction of this Portable Autoclave, the laboratory deployed it in the evidence receiving area, sample pretreatment area and DNA extraction area respectively, realizing independent sterilization treatment in different functional areas, and fundamentally eliminating cross-contamination caused by the cross-regional circulation of instruments and consumables. For the instruments such as tweezers, scissors and grinding pestles used for the treatment of trace samples, the laboratory personnel adopted the standardized sterilization procedure of 126℃/30 minutes, which can completely inactivate the exogenous DNA and nuclease remaining on the instruments. The success rate of STR typing of difficult trace samples increased from 72% to 94%, effectively solving the problem of test result deviation caused by exogenous pollution. In the subsequent investigation of series cross-regional theft cases and homicide cases, the laboratory ensured the aseptic and pollution-free whole process of inspection through this equipment, successfully obtained the complete DNA typing of the suspect from the trace contact samples of many cases, provided key scientific evidence for the detection of the cases. At the same time, the operation records and sterilization parameters of the equipment can be completely archived, which fully complies with the relevant requirements of judicial authentication qualification certification, and ensures the court admissibility of all test results.
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A major sudden food safety incident occurred in a city, involving multiple districts and counties, and a large number of victims had poisoning symptoms. It was urgent to carry out microbiological inspection on the food involved, vomit and environmental samples to lock the pathogenic pathogens. The incident occurred in a remote district and county, and there was no qualified microbiological inspection laboratory in the local area. The mobile inspection team of the Municipal Public Security Judicial Authentication Center was required to rush to the scene to carry out emergency inspection. The inspection team carried this Portable Autoclave to the scene, and quickly completed the on-site sterilization of sampling swabs, petri dishes, test tubes, normal saline and other consumables in the temporarily built mobile laboratory, providing aseptic guarantee for on-site microbial isolation, culture and rapid inspection, and effectively eliminating the interference of miscellaneous bacteria in the on-site environment on the inspection results.
Through the on-site rapid sterilization of the equipment, the inspection team completed the collection, inoculation, culture and inspection of all involved samples within 24 hours, successfully locked the pathogenic microorganisms and pollution sources, and provided key scientific basis for the emergency disposal of the incident, the treatment of the victims and the investigation of the case. The portable design, fast start-up capability and stable sterilization effect of the equipment perfectly adapted to the use needs of the field emergency scene, solved the problem of aseptic consumables supply without fixed laboratory conditions, and successfully completed the emergency inspection and support task of this sudden public event.