ISO 9001
CE Certified
Make In India
Features
- Electronic stethoscopes incorporate technology to enhance functionality beyond simple acoustic physics.
Technical Specifications
| Frequency Range | Stethoscopes are optimized to capture specific frequencies relevant to body sounds. |
| Heart Sounds | Primary sounds (S1 and S2) have peak power between 10 and 400 Hz, while murmurs and additional sounds can range higher. |
| Lung Sounds | These typically range from less than 100 Hz to over 1000 Hz, with abnormal sounds like wheezing or crackles reaching as high as 1500 Hz. |
| Chestpiece | The primary sound receptor placed against the skin. |
| Diaphragm (flat side) | A plastic disc designed to detect high-frequency sounds when pressed firmly against the skin. |
| Bell (hollow cup side) | Used for capturing low-frequency sounds with light skin contact, as the skin itself forms the vibrating membrane. |
| Diameter | Standard adult diaphragm diameters are typically around 4.4 cm (45.5mm), while pediatric diaphragms are smaller, around 3.15 cm. |
| Tubing | Flexible, hollow tubing transmits sound waves to the ears. |
| Material | Commonly made of durable polyvinyl chloride (PVC), often latex-free. |
| Design | Dual-lumen tubing is preferred in high-end cardiology models to reduce sound interference from the tubes rubbing together, compared to single-lumen designs. |
| Length | Standard lengths range from 22 to 28 inches (approx. 56 cm), balancing acoustic performance with comfortable reach. |
| Headset | Includes metal ear tubes (binaurals) and soft-sealing eartips, designed for a snug fit to seal out ambient noise. |
| Amplification | Electronically amplifies body sounds, often up to 20-50 times the volume of an acoustic stethoscope, aiding in detecting faint sounds or for users with hearing impairments. |
| Noise Reduction | Utilizes active noise-cancelling technology to filter out ambient background noise prevalent in busy clinical settings (e.g., emergency rooms or during transport). |
| Transducers | Instead of simple air pressure transmission, these devices use advanced sensors like piezoelectric crystals or electromagnetic diaphragms to convert sound into electrical signals. |
| Frequency Filtering | Allows clinicians to switch between "bell," "diaphragm," and "extended range" modes electronically, applying specific digital filters to optimize sounds in desired frequency bands (e.g., 20-200 Hz for bell mode, 20-2000 Hz for diaphragm mode). |
| Recording and Analysis | Capable of recording heart and lung sounds as digital files (e.g., .wav format) for later analysis, sharing with specialists (telemedicine), or educational purposes. |
| Connectivity | Many advanced models feature Bluetooth or USB connectivity to sync data with smartphones, tablets, or computer software for visual display of waveforms (phonocardiography). |
