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Thinklabs One Digital Stethoscope is an amplifying stethoscope with features that have crossed over into a new era. Recording sounds and playing them back for patients or analysis is now possible with the device. There are other similar devices such as this already on the market but Thinklabs has offered the best solution for sound in a crystal-clear format. With over 100-times amplification, compared to traditional stethoscopes. The stethoscope takes sounds such as a heartbeat and relays it back as best as possible audio.
What's in the Box?
- Studio Performance In-Ear Headphones
- Spare Eartips (Small, Medium, Large)
- Thinklink connection system for iPhone, iPad, Android, PC/Mac
- USB-type Charger 100-240V
- Charger Cable
- Pocket Carrying Case
- Quick Reference Guide
- 2-Year Warranty
The volume control allows you to raise or lower the output of sound that is heard - while filtering can be adjusted to listen for low, mid-range, or high frequencies. Audio output is made through an auxiliary port and can connect to high-quality headphones with no disruption to sound.
Product Controls and Display
An auto shut-off can be set so battery life can last longer. Charging the device is performed through the connection port, cable and wall-charger are provided. The package includes what you would need to plug-and-play. The stethoscope displays LED lights, indicating the settings currently selected.
The use of the stethoscope is simple. Made to be user-friendly and compatible with recent mobile and computer operating systems. If you are a healthcare professional that constantly uses a traditional stethoscope, you can offer a better experience for your patients and retain recordings from patients for following up on progress just as you would with any other diagnostic tool.
There are numerous medical studies that examine the utility of digitized stethoscopes, some of which have also tested the Thinklabs Stethoscope. Below are some of the study findings.
Cardiovascular disease (CVD) is recognized as the leading cause of mortality throughout the world. About 1/3 of global mortality is attributable to CVD. In addition to clinical presentation, specific clinical exam findings can assist in treating and preventing CVD. CVD may initially manifest as pulmonary pathology, and thus, accurate cardiopulmonary auscultation is paramount to establishing an accurate diagnosis.1
The Thinklabs® One stethoscope is able to amplify sounds up to 100 times by applying capacitive transducer.20 This technology is able to employ ambient noise reduction but can also use specific heart sound extraction creating a rigorous tool to hear specific heart sounds such as valvular clicks as well as use specific computer algorithms to extrapolate frequencies to understand pulmonary pathology.2
A stethoscope has been designed to filter out ambient noise and reduce playback speed to better detect heart defect in newborns that have quick, quiet heartbeats. Results have shown improvements in regards to both sound optimizations.3
The stethoscope was designed for high power output, with dedicated headphone amplifiers and has fully adjustable volume levels (1-10). The device can produce very high sound pressure levels and can exceed 100 times the decibel level of a conventional stethoscope. Five different filters allow the user to switch between listening for heart and lung sounds. In addition to filtering operations, adjusting the amount of pressure applied to the diaphragm alters the frequency response. Filter one ranges from 30 to 500Hz and filter two ranges from 60 to 500Hz, these low-pitched filters provide optimal auscultation for heart sounds. Filter three ranges from 80 to 500Hz and filter four ranges from 100 to 1000Hz, these filters are at a higher pitch, providing optimal auscultation for lung sounds. The fifth filter is a broadband filter ranging from 20Hz to 2000Hz +/- 3dB. The broad range of this filter lacks the specificity to filter out ambient noise but is ideal for recordings. The unit allows providers to select two filters as their "favorites" and set them for easy transition between the two filters. The LED lights are to serve as a visual indicator that the stethoscope is functioning. These LEDs also serve to indicate the volume level, current filter selection, and the device’s battery life. The stethoscope contains a rechargeable lithium-ion battery that can be recharged through a USB port. A full battery charge provides four continuous hours of auscultation time, which provides 100+ patient assessments. To save battery life, it e has a customizable timer shut off that can be set between 1 and 10 minutes. If the user prefers, the stethoscope can be placed in a continuous "on" mode where the provider can manually turn the stethoscope off when not in use. It is designed to resemble the tactile shape and features of a traditional stethoscope, making it intuitive for users. The device was designed to be able to create audio recordings while auscultating. The stethoscope is compatible with both Mac and Android software. The manufacturer has designed an application (app) that allows audio recordings to be made with visual indicators.4
Although there is nothing wrong with traditional stethoscopes, taking the time to learn the nuances of computer-aided auscultation will improve your diagnostic capabilities. The stethoscope is perhaps the most iconic device associated with medical practice, and the most important part of the stethoscope will always be the part " between the ear tips."5
In this study, a single observer compared an analog stethoscope with the Thinklabs One electronic stethoscope in a clinical setting to determine if there was a significant difference in the diagnostic utility of the devices. Two hundred and nine patients were examined and the electronic stethoscope was felt to have superior sound quality in 65% of patients.6
Product Features and Benefits
- Amplify Heart and Lung Sounds
- Record and Playback
- Filter and Frequency Adjustment
- Adjust Volume Control
- Auto Shut-off Time
- Ergonomic Design
- Mobile Apps
- Compact Design
- Ambient Noise Reduction
- Versatile Functions
- 100x Amplification
- Electromagnetic Diaphram
- High Quality Headphones
- 3.5 External Jack to Accommodate Many Brands of Ear Buds and Headphones
Full Range of Features
- Product SKU: HC-TL1001
- Battery Level Indicator: Yes
- Volume Control: Yes
- Recording: Yes
- Type: Audio
- Connection: 10cm Male-to-Female Headphone
- 3.5 mm headphone jack
- Assembled in USA
- Manufacturer Warranty: 2 years
Thinklink Connection System
- Included is a connection device that shares sounds with your mobile device, laptop, or desktop.
- Thinklink allows external devices to capture and send sounds.
- Switch between listening to playback.
- View sound waves.
- Email to send recordings for telemedicine applications.
- Create online sound libraries.
- Collaborate globally.
- iOS Thinklabs Wave Download
- Android Thinklabs Downoad
- Remote diagnosis connectivity with direct analog audio output to operate as an external microphone for any system. No SDK, no special software, and no API requirements.
- This stethoscope acts as a simple external microphone.
- Integrates seamlessly with almost any video conferencing system, including Polycom, Cisco Group Series, VSee, Zoom, and others.
- Does not require a subscription or licensing fees.
- Offers superb audio clarity and quality, with more than 100x amplification. Clinicians can use any high-quality audio headphones to diagnosis their patients.
- The unique design of the stethoscope allows healthcare workers to perform auscultation while being protected in an isolation environment and can be used with protective covers to reduce contamination when pre-screening admissions.
- Has versatility, working with earbuds or headphones, Bluetooth transmitters, connected to a loudspeaker, or sending sounds via email or instant messaging on iPhone or iPad.
- The stethoscope and Bluetooth transmitter fits easily inside a sealed bag such as a Ziploc sandwich bag. This is ideal for emergency room and primary care use, where protection is crucial. The device can continue to function when placed into up to ten sealed bags.
- This device enables you to record heart and lung sounds.
- Share the sounds at the bedside or send it out for consultation.
- Capture auscultation sounds and store them in your electronic medical records to track a patient’s progress over time.
- Collect sounds for academic teaching, student evaluations, presentations, or documentations.
- Integrate with iPhone, iPad, Android, Tascam, Zoom, and a host of other devices.
- Label and add notes to wave patterns collected.
- Edit recordings.
- Take snapshots of the screen.
- Enter your diagnosis with tags.
- Intuitive and quick interface.
- Capture sound and tag it to the listening location.
- Record multiple locations with individual tags.
- Single touch recording and tagging.
- Automatically group recordings for the patient.
- Capture cardiac sounds.
- Capture pulmonary sounds.
User Hearing Impairment
- Works with headphones that allow you to wear the headphone over hearing aids.
- The sound level exceeds a standard stethoscope by 100 times.
- You may select sound ranges between 0-10. Levels 7 through 10 are sufficiently loud to feel low-frequency sound waves.
- Combine amplification, connectivity, and adaptability to meet the individual user needs for auscultation.
- Share diagnostic sounds with patients, with parents of pediatric patients, and with smokers reluctant to kick the habit.
- Share with medical and nursing students the exact sounds and what they mean.
- Veterinarians can share sounds with pet owners.
- Sharing diagnostic sounds can go a long way towards patient compliance as well as treatment agreement.
- Share diagnostic sounds with specialists and other doctors for a second opinion.
- Connect a headphone splitter and have a student listen on their headphones. At the same time, you auscultate or reverse roles to monitor the students' ability to place the stethoscope correctly and locate sounds.
- Students can listen to live streaming or record and listen via headphones on their iPads or phones.
- Live listening allows for on the spot instruction.
- Record the patient, and students can playback sounds multiple times.
- Broadcast sounds using iPad/iPhone/Mac or Android.
- Record sounds and share instantaneously via wifi sharing apps, Dropbox upload, etc.
Indications for Use
Thinklabs Electronic Stethoscope is for use as a diagnostic assessment device in patient diagnosis. It may amplify the sounds of the heart, lung, and other body sounds with selective frequency filtering. This product is not for any use except as indicated.
- Follow directions specified in the User Manual for use. Misuse of this device can result in damage to the product, malfunction, or compromise performance.
- Use only the battery charger provided. Meets safety requirements with the supplied charger. Other chargers could damage the battery or cause heat, fire, or explosion.
- The device will not function with a depleted battery.
- Do not sterilize this device or immerse it in liquids. Clean using alcohol swabs or non-abrasive cloth dampened with alcohol or water.
- Do not attempt to modify or repair this device yourself. This device should be repaired only by an authorized technician.
- Avoid use or storage in high humidity, high temperature, or dusty conditions. Do not leave the device in excessively hot or cold vehicles.
- Resistant to electromagnetic interference (EMI & ESD). However, it may be susceptible to stray electromagnetic fields. If unexpected sounds occur, move location, or away from possible sources of interference, such as cellular telephones or wireless devices.
- When the device is past its useful life, dispose, or recycle with local regulations.
Product Service and Warranty
This device warranty applies to manufacture or materials defects for two years from the invoice date. If a material or manufacturing defect occurs within the warranty period, repairs are free of charge by coordinating with the manufacturer. The warranty voids in cases of abuse, excessive or inappropriate use conditions, or accidental damage to the product. The manufacturer may replace the product at its discretion with a suitable equivalent model. The warranty is transferable to another owner at the manufacturers discretion only.
- 1 Swarup, Supreeya, and Amgad N. Makaryus. "Digital stethoscope: Technology update." Medical devices (Auckland, NZ) 11, 2018. page 30. (Last Accessed March-25-2020)
- 2 Swarup, page 34. (Last Accessed March-25-2020)
- 3 Cheung, Liam, Andy Hin, and Chris Wood. "Digital Stethoscope Design." 2010. page 2. (Last Accessed March-25-2020)
- 4 Fouts, Brittany, Melissa Wilson, and Charles Harding. Feasibility of Electronic Stethoscope for En Route and Combat Casualty Care. No. AFRL-SA-WP-SR-2019-0005. USAFSAM/FHE Wright-Patterson AFB United States, 2019. page 2. (Last Accessed March-25-2020)
- 5 Schuman, Andrew J. "Electronic stethoscopes: what's new for auscultation." Contemporary Pediatrics 32, 2015. page 1. (Last Accessed March-25-2020)
- 6 Silverman, Barry, and Michael Balk. "Digital stethoscope—Improved auscultation at the bedside." The American journal of cardiology 123.6, 2019. page 985. (Last Accessed March-25-2020)
- Pick, J. M., et al. "The feasibility of telemedicine in pediatric cardiology." Journal of Pediatrics & Neonatal Care 8.3 (2018): 121-124. (Last Accessed March-25-2020)
- Soroush, Layla. An exploratory investigation of usage of digital stethoscope by clinicians in telehealth setting through Information Systems success model. Diss. University of Southern Queensland, 2011. (Last Accessed March-25-2020)
- Hamidah, Amy, et al. "Effective heart sounds detection method based on signal's characteristics." 2016 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS). IEEE, 2016. (Last Accessed March-25-2020)
- Cheong, Jomini. "Technology and Innovation in General Practice." (2016). (Last Accessed March-25-2020)
- Chua, Jedd Emille, et al. "An Android phone Application for a health monitoring system with integrated medical devices and localized health information and database for healthy lifestyle changes." 2014 International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management (HNICEM). IEEE, 2014. (Last Accessed March-25-2020)
- Belloni, F., et al. "A new digital stethoscope with environmental noise cancellation." Proceedings of the 12th WSEAS International Conference on Mathematical and Computational Methods in Science and Engineering, Faro, Portugal. 2010. (Last Accessed March-25-2020)
How to Use Video (8:47 minutes)
Connection Options for Telemedicine Video (2:51 minutes)
Versatility of External Devices Video (0:49 minutes)
Cleaning and Care in Less Than 40 Seconds Video (0:38 minutes)
Zoom Integration Video (0:59 minutes)
Frequency Filters Video (2:11 minutes)
Filter Settings Video (1:11 minutes)
Presetting the Frequency Video (0:29 minutes)
Filters--Options, Pre-Sets, and Favorites Video (2:12 minutes)
Converting an Old School Doctor Video (0:48 minutes)
Sound of Normal Breathing Video (0:14 minutes)
Sound of Normal Heart Operation Video (0:10 minutes)
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