厂家供应德国麦科听力计MA52
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厂家供应德国麦科听力计MA52
桂经理19117326863微xin同号
管理类别
第二类
型号规格
MA52
结构及组成/主要组成成分
该产品由主机、外置电源、患者应答器、耳机组成。
适用范围/预期用途
该系列产品用于人耳听力损失的诊断。
一、工作原理（Working Principle）
中文
纯音测听原理设备内置DSP 数字信号处理器生成高精度、低失真的纯音、脉冲音、啭音（5Hz 调频）等标准刺激信号。通过气导耳机（TDH39/DD45）、骨导振子（B71）或声场扬声器，将不同频率（125Hz~8kHz/20kHz）与强度（-10~120dB HL）的声音传递至被测耳。采用Hughson-Westlake（升 5 降 10）标准测听法，通过患者应答器判断最小可听阈值（听阈），从而绘制听力图，判断听力损失类型（传导性、感音神经性、混合性）与程度。
掩蔽原理当双耳听力差距较大时，为防止交叉听力（越耳听力）影响结果准确性，系统向非测试耳发送窄带噪声（NB）、白噪声（WN）或言语噪声（SN）进行掩蔽，确保测试耳结果独立可靠。支持自动与手动掩蔽。
言语测听原理通过内置麦克风或外接音源（CD / 磁带）播放标准言语测试材料，测试患者的言语识别阈（SRT）和最大言语识别率（WRS），评估在嘈杂环境中的言语感知能力及助听器选配效果。
阈上诊断原理通过SISI、ABLB、Stenger、Carhart 衰减、Langenbeck等特殊算法，测试耳蜗重振、病变部位、伪聋鉴别、听觉疲劳等听功能，为蜗后病变及非器质性听力损失提供诊断依据。
English
Pure-Tone Audiometry PrincipleThe built-inDSP (Digital Signal Processor)generates high-precision, low-distortion stimuli including pure tone, pulse tone, and warble tone (5Hz frequency modulation). Signals are delivered via air-conduction headphones (TDH39/DD45), bone oscillator (B71), or soundfield speakers across frequencies (125Hz~8kHz/20kHz) and intensities (-10~120dB HL).Using theHughson-Westlake (up 5dB, down 10dB)protocol, thresholds are determined via patient response, enabling audiogram plotting and classification ofconductive, sensorineural, or mixedhearing loss.
Masking PrincipleNarrow Band (NB), White (WN), or Speech (SN) noiseis presented to the non-test ear to eliminatecross-hearingartifacts when interaural asymmetry exists, ensuring accurate monaural results. Supports both automatic and manual masking.
Speech Audiometry PrincipleStandard speech materials are presented via a built-in microphone or external sources (CD/tape) to measureSpeech Reception Threshold (SRT)andWord Recognition Score (WRS), assessing speech perception abilities and hearing aid candidacy.
Suprathreshold Diagnostic PrincipleSpecialized algorithms (SISI, ABLB, Stenger, Carhart Decay, Langenbeck) evaluate recruitment, site-of-lesion, malingering, and auditory fatigue, providing evidence for cochlear/retrocochlear and non-organic disorders.
二、产品功能（Product Functions）
中文
1. 基础测听功能
气导测试：125~8000Hz（可选至 20kHz），-10~120dB HL，1/2/5dB 步进
骨导测试：250~8000Hz，-10~70dB HL
刺激类型：纯音、脉冲音、啭音、连续音
掩蔽噪声：窄带噪声（NB）、白噪声（WN）、言语噪声（SN）
双通道输出：双声道独立控制，支持双耳同步测试与对比
2. 言语测听功能
实时言语麦克风输入、外接 CD / 磁带输入
言语识别阈（SRT）、最大识别率（WRS）、舒适级（MCL）、不舒适阈（UCL）
内置言语测试词表，支持自动评分与结果统计
3. 阈上诊断功能
SISI（短增量敏感指数）：鉴别耳蜗病变
ABLB（双耳交替响度平衡）：检测响度重振现象
Stenger：伪聋 / 非器质性听力损失鉴别
Carhart Decay（音衰减测试）：蜗后病变筛查
Langenbeck：噪声中听力测试
MLB、MHA、TEN：助听器模拟、阈值均衡噪声测试
4. 数据与连接功能
5.7 英寸彩色 LCD 显示屏，实时显示听力图、测试参数
内置大容量存储（>10000 例患者数据）
支持 USB/SD 卡数据导出、PDF 报告生成、NOAH 兼容
内置对讲麦克风，医患双向沟通
自动计算平均听阈（PTA）、跟踪测试、数据互锁
English
1. Basic Audiometry Functions
Air Conduction: 125~8000Hz (optional 20kHz), -10~120dB HL, 1/2/5dB steps
Bone Conduction: 250~8000Hz, -10~70dB HL
Stimuli: Pure tone, pulse, warble, continuous tone
Masking: Narrow Band (NB), White (WN), Speech (SN) noise
Dual Channel: Independent control, binaural simultaneous testing & comparison
2. Speech Audiometry Functions
Live voice mic input, external CD/tape pｌayer input
SRT, WRS, Most Comfortable Level (MCL), Uncomfortable Level (UCL)
Built-in speech lists, automatic scoring & statistics
3. Advanced Suprathreshold Diagnostics
SISI: Short Increment Sensitivity Index (cochlear pathology)
ABLB: Alternate Binaural Loudness Balance (recruitment)
Stenger: Malingering/non-organic loss detection
Carhart Decay: Tone decay (retrocochlear screening)
Langenbeck: Tone-in-noise testing
MLB, MHA, TEN: Hearing aid simulation, threshold equalizing noise test
4. Data & Connectivity
5.7" color LCD, real-time audiogram & parameter display
Internal memory (>10,000 patients)
USB/SD card export, PDF reporting, NOAH-compatible
Built-in patient intercom
Automatic PTA calculation, tracking, interlock
三、产品特点（Product Features）
中文
德国精工，双通道设计：MAICO 原厂制造，双独立声道，临床诊断准
全功能诊断平台：纯音 + 骨导 + 言语 + 声场 + 全项阈上测试，一站式诊断
高频扩展：气导可选至20kHz，适用于耳毒性、噪声性听力损伤早期筛查
操作便捷：人体工学设计，大旋钮 + 快捷键，单手可完成全部操作
高清显示：5.7 英寸彩色 LCD，直观显示听力图、测试状态、实时曲线
便携耐用：整机约 5.8kg，一体化便携箱，适合出诊与移动诊断
数据强大：万级存储、USB/SD 传输、NOAH 兼容、自动报告
稳定：DSP 数字技术，低失真、高信噪比，符合 IEC/ANSI 国际标准
全中文界面：本土化操作系统，菜单简洁，适合国内临床使用
English
German Engineering, Dual-Channel: MAICO original manufacture, dual independent channels, gold-standard diagnostic
All-in-One Diagnostic: Pure-tone + bone + speech + soundfield + full suprathreshold tests
Extended High Frequency: Air conduction up to20kHzfor ototoxicity/noise-induced loss early detection
Ergonomic Operation: Large dials & hotkeys, one-hand full control
High-Res Display: 5.7" color LCD, clear audiogram & real-time curves
Portable & Robust: ~5.8kg, integrated carrying case, ideal for mobile clinics
Powerful Data: 10k+ memory, USB/SD, NOAH-compliant, auto-reporting
Precision & Stability: DSP tech, low distortion, high SNR, IEC/ANSI certified
Full Chinese Interface: Localized OS, intuitive menus for Chinese clinics
四、技术参数（Technical Specifications）
中文
| 频率范围 | 气导：125~8000Hz（可选 10k/16k/20k）；骨导：250~8000Hz |
| 强度范围 | 气导：-10~120dB HL；骨导：-10~70dB HL |
| 步进精度 | 1/2/5dB 可调 |
| 刺激信号 | 纯音、脉冲音、啭音（5Hz）、连续音 |
| 掩蔽噪声 | 窄带、白噪声、言语噪声（双通道独立） |
| 显示屏 | 5.7 英寸彩色 LCD，显示听力图、参数、状态 |
| 通道 | 双通道，独立控制 |
| 输入 / 输出 | 气导 / 骨导 / 插入式耳机、声场、应答器、对讲麦、CD / 磁带、USB、SD 卡、RS-232 |
| 数据存储 | >10000 例患者数据 |
| 尺寸 / 重量 | 约 40×30×15cm；约 5.8kg（含配件） |
| 电源 | 外接 AC 100~240V，50/60Hz |
| 标准 | IEC 60645-1、ANSI S3.6、CE 0123、MDD 93/42/EEC |
English
| Item | Specifications |
|---|---|
| Frequency Range | AC: 125~8000Hz (opt 10k/16k/20k); BC: 250~8000Hz |
| Level Range | AC: -10~120dB HL; BC: -10~70dB HL |
| Step Size | 1/2/5dB adjustable |
| Stimuli | Pure, pulse, warble (5Hz), continuous tone |
| Masking | NB, WN, SN (dual-channel independent) |
| Display | 5.7" color LCD, audiogram, parameters, status |
| Channels | Dual-channel, independent control |
| I/O | AC/BC/insert phones, soundfield, response button, intercom, CD/tape, USB, SD, RS-232 |
| Memory | >10,000 patient records |
| Dim/Weight | ~40×30×15cm; ~5.8kg (w/accessories) |
| Power | External AC 100~240V, 50/60Hz |
| Standards | IEC 60645-1, ANSI S3.6, CE 0123, MDD 93/42/EEC |
五、使用方法（Usage Method）
中文
准备工作
设备：开机自检，确认校准有效，连接耳机 / 骨导 / 应答器 / 麦克风
环境：进入标准测听室（背景噪声 <30dB (A)）
患者：讲解测试流程，指导使用应答器，保持安静放松
气导测试
选择测试耳 → 设定起始频率 / 强度 → 按 Hughson-Westlake 升降
双耳阈值差 > 40dB 时，启动自动掩蔽
依次测试 125~8000Hz，记录各频率阈值
骨导测试
骨导振子置于乳突部 → 测试 250~8000Hz → 分析气骨导差
言语 / 特殊测试
言语：选择 SRT/WRS，用麦克风或 CD 播放，记录识别率
诊断：选择 SISI/ABLB/Stenger 等，按屏幕指引完成
数据保存与报告
自动生成听力图 → 输入患者信息 → 保存至内存 / SD 卡
导出 PDF 或打印报告 → 清洁设备、关机
English
Preparation
Equipment: Power on self-test, verify calibration, connect transducers/response button/mic
Environment: Use soundproof booth (<30dB(A))
Patient: Instruct on response, ensure quiet & relaxed
Air Conduction
Select ear → set freq/level → follow Hughson-Westlake
Auto-maskif interaural difference >40dB
Test 125~8000Hz, record thresholds
Bone Conduction
Place oscillator on mastoid → test 250~8000Hz → analyze air-bone gap
Speech/Special Tests
Speech: Select SRT/WRS, use mic/CD, score recognition
Diagnostics: Run SISI/ABLB/Stenger per on-screen guide
Save & Report
Auto-generate audiogram → enter patient data → save to memory/SD
Export PDF/print → clean & power off
六、适应症（Indications）
中文
听力损失诊断：传导性、感音神经性、混合性耳聋，轻 / 中 / 重 / 极重度分级
中耳病变评估：中耳炎、耳硬化、听骨链异常、咽鼓管功能障碍
耳蜗及蜗后病变：梅尼埃病、耳毒性、噪声性聋、听神经瘤、脑干病变
言语能力评估：言语识别率、助听效果、中枢听觉处理障碍
特殊人群诊断：成人、儿童（配合者）、伪聋鉴别、职业健康体检
术前术后评估：人工耳蜗、中耳手术、听神经瘤手术前后监测
高频听力筛查：20kHz 扩展，适用于耳毒性药物、噪声暴露早期检测
English
Hearing Loss Diagnosis: Conductive, sensorineural, mixed; mild to profound
Middle Ear Evaluation: Otitis media, otosclerosis, ossicular chain disorders, ETD
Cochlear/Retrocochlear: Meniere’s, ototoxicity, noise-induced loss, acoustic tumor, brainstem lesions
Speech Assessment: WRS, hearing aid benefit, CAPD
Special Populations: Adults, cooperative children, malingering, occupational screening
Pre/Post-Op: Cochlear implant, middle ear surgery, tumor monitoring
High-Freq Screening: 20kHz extension for ototoxicity/noise early detection
七、禁忌症（Contraindications）
中文
绝对禁忌
急性外耳道炎、湿疹、严重耳痛、活动性耳道流脓
鼓膜穿孔急性期、外耳道闭锁 / 严重狭窄
骨导放置区皮肤感染、破损、过敏
癫痫发作期、严重精神障碍、无法配合
环境噪声 > 50dB (A)（测试结果无效）
相对禁忌
3 岁以下婴幼儿（无法主动配合，建议客观测试）
严重认知障碍、意识不清、不自主运动
感冒、严重鼻塞（中耳负压，结果偏差）
外耳道耵聍栓塞未清理
English
Absolute Contraindications
Acute otitis externa, eczema, pain, active otorrhea
Acute TM perforation, canal atresia/stenosis
Skin infection/breakdown at oscillator site
Active epilepsy, severe psychiatric disorder, uncooperative
Ambient noise >50dB(A) (invalid results)
Relative Contraindications
Infants <3y (uncooperative; ｏbjective tests recommended)
Severe cognitive impairment, unconscious, involuntary movement
Cold/severe congestion (middle ear artifact)
Impacted cerumen (uncleaned)
八、注意事项（Precautions）
中文
环境：必须在标准测听室（<30dB (A)），远离电磁干扰
校准：每年专业校准，每月自检；异常立即停用送检
操作：专业人员；严格按标准流程；规范使用掩蔽
患者：测试前 48h 禁酒 / 镇静剂；儿童需安抚；避免疲劳
配件：TDH39/B71 定期检查；耳机消毒；防止摔落
数据：及时备份；NOAH 传输复核；防止丢失
解读：结合耳镜、声导抗、OAE、ABR 综合诊断
English
Environment: Soundproof booth (<30dB(A)), EMI-free
Calibration: Annual professional cal; monthly self-check; service if faulty
Operation: Trained staff only; follow standards; proper masking
Patient: No alcohol/sedatives 48h prior; calm children; avoid fatigue
Accessories: Inspect TDH39/B71; disinfect; prevent shock
Data: Backup regularly; cross-verify via NOAH
Interpretation: Correlate with otoscopy, tympanometry, OAE, ABR
九、存储条件（Storage Conditions）
中文
温度：工作 10~35℃；存储 -20~+60℃
湿度：15~90% RH（无冷凝）
气压：86~106kPa
环境：干燥、通风、无尘；远离热源、腐蚀、强电磁、潮湿
设备：防尘罩；配件分类收纳；长期存放前清洁并充满电
English
Temperature: Operating 10–35℃; Storage -20–+60℃
Humidity: 15–90%RH (non-condensing)
Pressure: 86–106kPa
Environment: Dry, ventilated, dust-free; away from heat, corrosion, EMI, moisture
Equipment: Dust cover; organize accessories; clean & fully charge before long storage
十、说明书核心信息（Manual Core）
中文
制造商：MAICO Diagnostic GmbH（德国柏林）
型号：MA52 双通道诊断型听力计
标准认证：IEC 60645-1、ANSI S3.6、CE 0123、MDD 93/42/EEC
标准配置：主机、TDH39 气导耳机、B71 骨导振子、应答器、对讲麦克风、电源、USB 线、SD 卡、便携箱
维护保养：年度校准；每月自检；探头 / 耳机每年检查；外壳 75% 酒精擦拭
故障处理：无信号→查连接 / 校准；失真→换配件；噪声→屏蔽干扰
保修：整机 2 年；配件 1 年；人为损坏、非授权维修除外
安全等级：Class IIa 医疗设备，Type B 防电击；专业人员操作
English
Manufacturer: MAICO Diagnostic GmbH (Berlin, Germany)
Model: MA52 Two-Channel Diagnostic Audiometer
Certifications: IEC 60645-1, ANSI S3.6, CE 0123, MDD 93/42/EEC
Standard Package: Main unit, TDH39, B71, response button, intercom mic, power supply, USB cable, SD card, carrying case
Maintenance: Annual calibration; monthly self-test; annual transducer check; 75% alcohol wipe
Troubleshooting: No signal→check connections/cal; distortion→replace parts; noise→EMI control
Warranty: 2-year system; 1-year accessories; exclude damage/unauthorized repair
Safety: Class IIa, Type B; professional use only
Shanghai Kangshida Medical Devices Co., Ltd. is a professional company engaged in the sales of medical devices, focusing on the agency and distribution of renowned medical equipment brands from both domestic and international markets. Its core product range covers full-scenario medical devices for physical examination, diagnosis, emergency treatment, laboratory testing, ultrasound, medical analysis, life sciences, disinfection and sterilization, rehabilitation therapy, operating rooms, emergency rooms, consulting rooms and other fields. Relying on its strong product sales capacity, excellent commercial reputation and integrity-based operation philosophy, the company has won unanimous recognition and trust from medical institutions and partners.
The steady and rapid development of the company is attributed to its carefully selected high-quality product portfolio. It always takes customer needs as the core orientation and is committed to creating long-term value and practical benefits for customers. As an authorized and exclusive agent for many well-known domestic and international manufacturers, the company has established a complete supply system of medical devices with reliable quality, fully meeting the needs of clinical diagnosis and treatment.
The company always takes improving customer satisfaction as its core goal. To strictly adhere to product standards and exceed the expectations of customers and manufacturers, it regularly provides training on professional ethics and professional business skills, forging a highly competent, efficient and executive team covering business, technology and management. The team implements a 7×24-hour all-weather response mechanism to provide professional and high-quality after-sales service and technical support, efficiently solving various equipment operation and maintenance problems. At the same time, the company offers exclusive services including same-day delivery and free distribution, ｆorming a closed loop covering supply, distribution and after-sales service to fully ensure the stable supply and worry-free use of medical equipment for medical institutions.
Upholding integrity as the foundation of its business, the company selects high-quality medical devices and provides professional services for customers, helping to upgrade the quality of medical services and contributing to the high-quality development of China's medical industry.
Intellectual Property Infringement Complaint: Kangshida Medical does not manufacture medical products; all products are sourced from original manufacturers. We will promptly address any intellectual property infringement issues.The content published herein is for reference only.
热门标签：厂家供应德国麦科听力计MA52,麦科听力计MA52,麦科听力计
