Ambulatory Recorder Walk400h - Good

Cardioline Walk400h ECG Holter Recorder: Advanced Monitoring and Diagnostic Flexibility

The Walk400h, developed by Cardioline, is a next-generation ECG Holter recorder designed for extended patient monitoring, offering remarkable flexibility and cutting-edge diagnostic performance. Here is a detailed exploration of its features and technical specifications that make it an indispensable tool in modern medical practice.

Advanced Technical Features

The Walk400h allows ECG recording up to 12 leads using 5, 7, or 10-wire patient cables, enabling optimal adaptation to specific patient needs. Equipped with a 24-bit A/D converter, it ensures resolution finer than 1 μV/LSB with a dynamic range of +/- 400 mV, thereby guaranteeing precise and detailed capture of cardiac electrical signals. The sampling rate is adjustable by the user, offering options of 250, 500, or 1000 samples/second/channel for maximum flexibility in recording and data analysis.

The extended ECG bandwidth, from 0.05 to 300 Hz at 1000 samples/second, complies with the most rigorous diagnostic standards, ensuring high-quality data acquisition crucial for accurate detection of cardiac disorders. The device features a digital high-pass filter with linear phase, compliant with IEC 60601-2-25 2nd edition standard, ensuring optimal performance even in demanding clinical environments.

Intuitive User Interface

The Walk400h's user interface is designed for intuitive and efficient operation. A 2.2” TFT color screen displays up to 6 traces simultaneously, allowing physicians to monitor signal quality before and during recording. A 4-directional joystick and push-button facilitate menu navigation and device configuration. Green and blue LEDs provide clear visual indications of battery and device status, while an audible alarm alerts to anomalies or errors during recording.

Advanced Storage and Connectivity

Recorded data is securely stored on a 16 GB SD card, providing ample capacity for intensive clinical use. This data can be downloaded via USB cable to the Cardioline Cubeholter software or transferred remotely using Cardioline Webuploader software, facilitating access to crucial health information for healthcare professionals. Additionally, the recorder allows for voice recording of patient preparation messages, simplifying the identification and correlation of recorded events with reported symptoms.

Practical Power and Dimensions

Compact and lightweight at 96 x 65 x 20 mm and only 90 g, the Walk400h is designed for patient comfort throughout ambulatory recording. It operates on a standard AA battery, providing over 48 hours of recording with an alkaline battery (2500 mAh) or up to 7 days with a lithium battery (3000 mAh), reducing costs and enhancing convenience in various clinical and home settings.

Safety Standards and Compliance

The Walk400h complies with strict medical directives such as MDD 93/42/EEC and meets electrical safety standards (IEC 60601-1) and electromagnetic compatibility (IEC 60601-1-2). Classified as Class IIe with protection against accidental water or substance ingress (IP 4X), it ensures maximum safety for patients and users in all operating conditions.

Accessories and Environmental Adaptability

A range of accessories, including different patient cables and disposable electrodes, are available for the Walk400h, suitable for diverse clinical and home use scenarios. The device is designed to operate in a temperature range of 5º C to 40º C, ensuring reliable performance even in demanding clinical environments.

The Cardioline Walk400h represents a significant advancement in ambulatory monitoring, combining advanced technological capabilities with exceptional ease of use and strict compliance with international medical standards. Ideal for clinics, hospitals, and medical practitioners, it offers a comprehensive solution for precise and effective management of chronic and acute cardiac conditions.

ECG recording with up to 12 leads
Choice of patient cables: 5 wires (3 unipolar channels), 7 wires (3 bipolar channels), 10 wires (8 channels/12 leads)
CMRR > 85 dB
DC input impedance > 60 MOhm
24-bit A/D converter, 96000 samples/second/channel
Resolution <1 μV/LSB
Dynamic range +/- 400 mV
ECG bandwidth from 0.05 - 300 Hz (at 1000 samples/second)
Diagnostic linear-phase digital high-pass filter
Pacemaker recognition with digital convolution filter