Top subscription boxes right to your door, 1996-2023, Amazon.com, Inc. or its affiliates. I will be starting a segment of Black Inventors and Their Inventions, featuring the great men and women who contributed and innovated the world we live in. miner crossword clue 7 letters . Java is a registered trademark of Oracle. Items for the weekly Class Notes column can be mailed to The Times South Bay office, 23133 Hawthorne Blvd., Suite 200, Torrance 90505, or faxed to (310) 373-5753 for staff reporter Lorna Fernandes. Unable to find a job in engineering because of racial discrimination, McCoy found work as a railroad fireman. Electronic stethoscopes can send sound waves through computer chips or across cell phones, making it possible to listen to a patients heart or lungs through speakers. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Color: Black Tube, Black Stem Style: Black-Finish Chestpiece Image courtesy of Dr. Mark Dean & Sergei Korolko/Getty Images. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 4.7 out of 5 stars 29,167 ratings . She is known for her independent films and documentaries, including one about Alexander Graham Bell. 3M Littmann Stethoscopes are built with Tunable Technology, an innovation developed by 3M, makes it possible to hear both high and low frequency sounds without moving the placement of your stethoscope chestpiece. A watch support member 30 extends from the stethoscope housing 20. . Ren Lannec's invention of the stethoscope in the Hpital Necker in Paris in 1816 heralded a new era in clinical diagnosis. . "Ren Laennec and the Invention of the Stethoscope." $152.28 $112.00. The. As a postgraduate researcher at Columbia University in the late 1930s, Drew invented a means of separating plasma from whole blood, allowing it to be stored for up to a week, far longer than had been possible at the time. ThoughtCo, Feb. 28, 2021, thoughtco.com/black-inventors-through-the-years-4145354. Read More: How an Enslaved African Man in Boston Helped Save Generations from Smallpox, Bettmann Archive/Getty Images & Marina Parfenova/Getty Images. Active in the early civil rights movement, he helped found one of the first Black American newspapers in Ohio, the Cleveland Call. It was at Tuskegeethat Carver made his greatest contributions to science, developing more than 300 uses for the peanut alone, including soap, skin lotion, and paint. Where did the word stethoscope come from?? He moved the bell-shaped listening end above the level of the chest to make it easier for doctors to use when placing it on different parts of the body. On top of that, police were unreliable and unresponsive. From the traffic light to the ironing board, see a list of products that have sprung from the minds of Black inventors. He pioneered its usage in diagnosing various chest conditions. Bellis, Mary. 3M, Littmann, the L Littmann logo, the L, and Cardiology IV are marks and/or registered marks of 3M. What are some ways you can limit your search? Cardiologists, and doctors who treat conditions related to the heart, use stethoscopes that have very small bells and diaphragms so they can hear soft sounds in people with less serious problems. The addition of the carbon filament increased the life span and practicality of light bulbs, which had previously died after just a few days. Free Shipping! Listening to the patient with the CORE, he heard bronchial breath sounds. The doctor was treating a female patient and was embarrassed to use the traditional method of Immediate Auscultation, which involved the doctor pressing his ear to the patient's chest. Rene Theophile Hyacinthe Lannec (1781-1826) was a French physician who, in 1816, invented the stethoscope. Used under license in Canada. Littmann Cardiology and Classic stethoscopes are designed for a variety of environments and uses, from monitoring to diagnosing. Stove invented by T. A. Carrington July 25, 1876 60. She and her husband took out a patent for the system in the same year, and they were awarded the patent three years later in 1969. Save 5% on 2 select item (s) FREE delivery. It consisted of a wooden tube and was monaural. F: +966 11 462 2847 | T: +966 11 463 4933 2 Did a black person invent the stethoscope? The Invention of the Stethoscope The stethoscope revolutionised medicine, but it also provoked anxieties about the unfamiliar sounds it revealed. How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck TED-Ed 18.3M subscribers Subscribe 386K views 6 years ago View full lesson: http://ed.ted.com/lessons/how-the-ste. These cookies ensure basic functionalities and security features of the website, anonymously. The Stethoscope: An Instrument Born of Embarrassment. Even though the device was developed in 1816 there were no electronic stethoscopes invented yet and doctors use their hands to feel a patients chest in order to listen to their heart and lungs, which is very hard work and not so accurate; Today there are over 200 types of stethoscopes that can help doctors listen to different parts of the body with more accuracy. But opting out of some of these cookies may affect your browsing experience. The stethoscope has two different heads to receive sound, the bell and the diaphragm. This was refined the next year by George Cammann and put into mass production. Company Information; FAQ; Stone Materials. Learn more about 3M Littmann CORE Digital Stethoscopes. A tailor by trade in New York City, Jennings applied for and received a patent in 1821 for a cleaning technique he'd pioneered called "dry scouring." Dr. Littmann also added a second sound channel inside the tube, which separated normal and abnormal sounds to make them louder and easier to hear. Imhoteps name means, the one that comes in peace and theologists believe he is Joseph in the Bible. https://www.thoughtco.com/black-inventors-through-the-years-4145354 (accessed March 4, 2023). By News Videos Dec 8, 2018 african american health, vegan. "10 Important Black Inventors in U.S. The watch 32 rests upon the watch support member 30. The watch support member 30 may be made of sound-absorbing material. Ren Laennec and the Invention of the Stethoscope. Some of these inventors were left out of America's history books and their curriculum. Analytical cookies are used to understand how visitors interact with the website. Did a black person invent the stethoscope? The word stethoscope comes from the Greek words for chest and I examine. Littmann Master Cardiology Stethoscope, Black Edition, 2161. . BornSarah Breedlove, Madame C.J. Did Thomas A. Carrington invent the stethoscope in 1876? He was a priest, a high government official, a doctor, an architect; and he also advised the Kings in Egypt. His skill of carving his own wooden flutes led him to invent the stethoscope in 1816, while working at the Hpital Necker. Many people attribute the invention of the smartphone to Europeans, but in fact, the first digital cell phone was invented by an African American man named Jesse Eugene Russell. The stethoscope was invented in 1816 by French scientist Ren Laennec at the Necker Enfants Malades Hospital in Paris. He received a patent for his invention in 1940, and co-founded the U.S. Thermo Control Company, later known as Thermo King. All Rights Reserved. These cookies track visitors across websites and collect information to provide customized ads. Usually ships within 1 to 2 months. The stethoscope was invented in 1816 by the French physician Ren Thophile Hyacinthe Lannec (1781-1826) at the Necker-Enfants Malades Hospital in Paris. Walker pioneered the use of female sales agents, who . The modern day stethoscope has definitely evolved from the first design that Laennec created and it is still being improved. Dean began working for IBM as a chief engineer in the early 1980s, making up a team of 12 people who would develop the first IBM PC. George Edward Alcorn Jr. (Born March 22, 1940). This cookie is set by GDPR Cookie Consent plugin. This gave doctors a way to hear two sounds at the same time, which is an improvement in listening. MD One Epoch Titanium Adult Stethoscope - Tie Dye. All Rights Reserved. 2022 MagnifyMind. No need to register, buy now! shein voucher code first order; russ rose salary penn state; bluestacks text not showing; wordle alternative game; what is marco scutaro doing now Importance contribution to the African American community. The stethoscope. It was while working in that role that he developed a new means of keeping locomotive engines lubricated while running, allowing them to operate longer between maintenance. Imhotep most famous invention was the stethoscope.. The word stethoscope came about because when Laennec invented his device he referred to it as a stethoscope, meaning that it was used to listen for. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Obstetric forceps were invented in the mid-1500s, when . He was a black inventor he invented the Range Oven and the Stethoscope. No implement better visually identifies a physician than does the stethoscope, the acoustic medical device that enables medical personnel . black inventor of stethoscope. Carrington invented the stethoscope and the stove. Rene Laennec was a French physician, who invented stethoscope. Necessary cookies are absolutely essential for the website to function properly. In September 1816, the 35-year-old doctor was inspired to create the stethoscope when he saw some children playing on the streets of Paris. 1816-1882: THE STETHOSCOPE The stethoscope was invented in 1816 when a young French physician named Ren Thophile-Hyacinthe Laennec was examining a 40 year old female patient named Marie-Melanie Basset who had shortness of breath. If you do not consent to this use of your personal information, please do not use this system. Before flat screens and hi-definition LCD monitors were the norm, PC displays were limited to screens with no color that were tethered to computers with limited processing power. 1816-1882: THE STETHOSCOPE The stethoscope was invented in 1816 when a young French physician named Ren Thophile-Hyacinthe Laennec was examining a 40 year old female patient named Marie-Melanie Basset who had shortness of breath. Campus Recreation Job Description, The Classic III stethoscope is used by students and medical professionals alike to identify, listen to, and study heart, lung, and other body sounds for physical assessment, patient monitoring, and diagnosis. a 3M invention -- lets clinicians hear different frequency. The stethoscope was invented by a French scientist Rene Laennec because He felt uncomfortable placing his ears directly on women's chests to listen to heart sounds. The first African American musician was C. C. Rider. Black Inventors & Their Inventions: Imhotep - The Stethoscope. He took out the patent for the creation in 1923, and it was granted to him the following year. More than 50 items invented by blacks, including the stethoscope, ice cream scoop, gas mask, rolling pin, typewriter, pencil sharpener, egg beater, ironing board and guitar, were on display with the name of the inventor and the year they were invented. Imhotep also, was the fist architect to establish and develop a foundation which the pyramids are built off. Before security systems became a fixture in homes, an African American nurse Mary Van Brittan Brown, devised an early security unit for her own home. "Ren Laennec and the Invention of the Stethoscope." Sep 30, 2022 News . Copyright 2018 BMC. The marine science and education center should be completed by mid-1994, Jensen said. That all changed thanks to Black inventor and engineer Mark Dean. The doodle shows Laennec in black and white holding his invention to his ear and a doctor next to him holding the modern version of the stethoscope. Advertisement More than 50 items invented by blacks, including the stethoscope, ice cream scoop, gas mask, rolling pin, typewriter, pencil sharpener, egg beater, ironing board and guitar, were. The stethoscope was invented in 1816 by French physician Ren Laennec. At 3M Littmann we have a variety of tools and resources to help you become a more effective clinician by learning how to properly use your 3M Littmann Stethoscope and learn the critical skill of auscultation. Madame C.J. In 1849, Elizabeth Blackwell became the first woman in the United States to be granted an MD degree. source. The company was critical during World War II, helping to preserve blood, food and supplies during the war. George Washington Carver became one of the leading agronomists of his time, pioneering numerous uses for peanuts, soybeans, and sweet potatoes. Melissa Dickson | Published in History Today Volume 67 Issue 5 May 2017 Ren Lannec's invention of the stethoscope in the Hpital Necker in Paris in 1816 heralded a new era in clinical diagnosis. Mary Bellis covered inventions and inventors for ThoughtCo for 18 years. Deep breaths use the entire lung and thus provide more information if somethings going on deep inside. Wednesday, February 5, 2014 African Inventors: 'Stethoscope' - Imhotep The heart is the most important organ in the body, without it we really would not be alive. 740 park avenue documentary netflix . . . Tunable diaphragm technologya 3M inventionlets clinicians hear different frequency sounds by simply adjusting the pressure on the chestpiece. BLACK HISTORY: Kindergarten through fifth-grade students at Howard Wood Elementary School in Torrance kicked off Black History Month by visiting the Black Scientists and Inventors exhibit earlier this week. Who invented the stethoscope black man? Stethoscope: Imhotep: Ancient Egypt (circa 2980 B.C.) The stethoscope revolutionised medicine, but it also provoked anxieties about the unfamiliar sounds it revealed. And the vast majority of microphones used today, including the microphones used in phones and cameras, use a microphone co-invented by a Black man. From authentic records, it has been established that the pressure cooker was invented by a French Physicist and Mathematician called Denis Papin. Early detection can save lives. NEW SCIENCE CENTER: Southern California Edison Co. has announced it will build a science and education center at its Redondo Beach generating plant to teach inner-city youths about the environment and possibly prepare them for careers in marine biology. For example, in 1936 Dr. David Littmann made some changes to the original stethoscope design. How did doctors listen to your heart before the stethoscope? As the first Black undergraduate student at Iowa State, he studied soybean fungi and developed new means of crop rotation. Copyright 2023 Stwnews.org | All rights reserved. Rene Theophile Hyacinthe Lannec (1781-1826) was a French physician who, in 1816, invented the stethoscope. The 3M Littmann Classic III Stethoscope, Black Edition, 27 inch, 5803 is available for same-day shipping and custom laser engraving if ordered by 3PM ET (M-F) . The power company agreed to the $5.5-million project as part of a $17-million settlement with an environmental group, Earth Island Institute, which had charged Edison with damaging wetlands near its San Onofre nuclear power plant in northern San Diego County. With Boones 1892 additions, the board featured a narrower and curved design, making it easier to iron garments, particularly womens clothing. Laennecs technique of using his ear to listen was much easier than this old way. Has any NBA team come back from 0 3 in playoffs? Prior to the development and invention of the stethoscope, physicians during the 19 th century were systematically exploring the clinical meanings behind heart and breath sounds by gathering data during patient examinations. The first models looked like old fashioned ear trumpets and consisting of a wooden tube attached to a single microphone at one end and earpiece at the other. "10 Important Black Inventors in U.S. shein voucher code first order; russ rose salary penn state; bluestacks text not showing; wordle alternative game; what is marco scutaro doing now; null dereference fortify fix java; waterfront homes for sale in seabrook tx; eddie from bobby bones show; How an Enslaved African Man in Boston Helped Save Generations from Smallpox, 10 More Black Inventors Who Changed Your Life. We also use third-party cookies that help us analyze and understand how you use this website. Adams Middle School will set up a writing and publishing center to enhance its language arts program for all students. Stay up to date on the latest news and product information from 3M Littmann Stethoscopes. UPC 00707387792350. . Pickering: 1892: almanac: Benjamin Banneker The first professional stethoscope was invented by a black man, Samuel Morse. Patients: How to Choose the Right Word, The History of the Kaleidoscope and David Brewster, Famous Inventions and Birthdays in February, English for Medical Purposes - A Physical Examination, The Most Important Inventions of the 19th Century, The Pre-Med Students Guide to Shadowing a Doctor, Biography of Charles Wheatstone, British Inventor and Entrepreneur, Important Health-Related English Vocabulary, How to Begin an Essay: 13 Engaging Strategies. Lannec, who in 1819 described the use of a perforated wooden cylinder to transmit sounds from the patient's chest (Greek: stthos) to the physician's ear. Using this new instrument, he investigated the sounds made by the heart and lungs and determined that his diagnoses were supported by the observations made during autopsies. This Shipping Policy shall only apply to orders placed through Ekohealth.com. Feel good about your decision to choose the best for your patients. black inventor of stethoscope. Portrait lithograph by . The 3M Littmann CORE Stethoscope connects with Eko software on a smart device2 to visualize, record and share data. Please try again later 3M takes your privacy seriously. Dr. Lonnie Johnson, president and CEO at Excellatron, is probably best known as the inventor of the Super Soaker. Street sweeper. Thomas Jennings holds the distinction of being the first Black American to be granted a patent. Dr. Mae Jemison is the first African American woman to journey to space, when she was aboard the Space . The cooker heats water to produce very hot steam which forces the temperature inside the pot as high as 266 F (130 C), significantly higher than the maximum heat possible in an ordinary saucepan. Riyadh 11433, Kingdom of Saudi Arabia The stethoscope was invented in 1816 by French physician Ren Laennec. Drew also discovered that plasma could be transfused between persons regardless of blood type and helped the British government establish its first national blood bank. . Unauthorized use prohibited. As the story goes, when the daughter of African American inventor Alexander Miles almost fatally fell down the shaft, he took it upon himself to develop a solution. Tunable diaphragm technologya 3M inventionlets clinicians hear different frequency sounds by simply adjusting the pressure on the . Thanks to the successes of his other inventions, Morgan bought and car and, as a motorist, he witnessed a severe car accident at an intersection in his city of Cleveland, Ohio. Campus Recreation Job Description, Why do doctors ask you to breathe deeply? Dr Constantin Paul using the Galante stethoscope, c.1885. The stethoscope was invented in 1816 by French physician Ren Laennec. 31, 2021, thoughtco.com/rene-laenecc-stethoscope-1991647. Walker is widely popular for her Walker Hair Care System and the invention of the straightening comb. Ren Thophile Hyacinthe Lannec (1781-1826), a pioneer in respiratory medicine, contributed immeasurably to the introduction and evolution of this diagnostic tool and he is generally credited with this pivotal advance in the practice of medicine. More than 50 items invented by blacks, including the stethoscope, ice cream scoop, gas mask, rolling pin, typewriter, pencil sharpener, egg beater, ironing board and guitar, were on display with the name of the inventor and the year they were invented. Did a black person invent the stethoscope? The stethoscope is an implement for listening to the internal sounds of the body. 3M Littmann CORE Digital Stethoscope, Black Chestpiece, Tube, Stem and Headset, 27 inch, 8480 Visit the Littmann Store 2,695 ratings | 43 answered questions -6% $32900 List Price: $349.99 FREE Returns Available at a lower price from other sellers that may not offer free Prime shipping. Continue with Recommended Cookies. The first prototype of the binaural stethoscope was hardly used. Find high-quality stock photos that you won't find anywhere else. The stethoscope was invented in 1816 by the French physician Ren Thophile Hyacinthe Lannec (1781-1826) at the Necker-Enfants Malades Hospital in Paris. After training as an engineer in Scotland as a teen, he returned to the U.S. The stove made cooking in the 1800 easier. Inventor Lonnie Johnson holds more than 80 U.S. patents, but it's his invention of the Super Soaker toy that is perhaps his most endearing claim to fame. The History of How Was Video or motion picture Invented, Psychology: The Truth About Attention-Seeking in Women, Understanding Double Deficit Dyslexia and Its Impact on Learning. Even for those who arent quick to pick up the mic during karaoke, microphones are used every day to communicate over distances far and wide. The Classic III stethoscope is used by students and medical professionals alike to identify, listen to, and study heart, lung, and other body sounds for physical assessment, patient monitoring, and diagnosis. Russell was born on April 26, 1948, in Nashville, Tennessee. History." Even further if we did not have the proper tools during check ups, knowing rather or not our heart is functioning properly would be pretty difficult. . Ren Laennec Google doodle marks the 235th birthday of Ren Laennec with its doodle. Hold the chestpiece with light pressure to hear low frequency . Using this new instrument, he investigated the sounds made by the heart and lungs and determined that his diagnoses were supported by the observations made during autopsies. But, do you know how The stethoscope was invented? Ren-Thophile-Hyacinthe Laennec [a] ( French: [lank]; 17 February 1781 - 13 August 1826) was a French physician and musician. Among his many accomplishments, Banneker is perhaps best known for a series of almanacs he published between 1792 and 1797 that contained detailed astronomical calculations of his, as well as writings on topics of the day. (2021, July 31). One side of the chest piece, a flat plastic diaphragm, rendered higher-frequency sounds when pressed to the patients skin, while the other side, a cup-like bell, allowed sounds of a lower frequency to be discerned. Black Tube, Smoke Stem and Headset, 6240. He is the only known Black Aerospace Physicist and Engineer from Thomasville. Thus, Denis Papin is renowned for this excellent study on the steam as well as steam-based tools. Dr. James E. West was tasked with creating a more sensitive and compact microphone while working at Bell Labs in 1960. Blackwell began her pioneering journey after a deathly ill friend insisted she would have received better care from a female doctor. Inspired by the ineffective way that ice cream was being served to customers at the time, Alfred Craelle was the first African American in Pittsburgh, Pennsylvania to receive a patent for his invention of a more efficient ice cream scoop. Stethoscope Inventor Black & White Stock Photos (15) Page 1 of 1. Through a long and painstaking process of describing and matching the sounds he detected during his assessment of patients with the physical changes within the body observed during autopsies, Lannec developed a new way of knowing, understanding and diagnosing the human body through the medium of sound. Manage Settings What did Disney actually lose from its Florida battle with DeSantis? Since 1930, as a young man, his scientific work led to development of United States Navy's Polaris Submarine- Launched Missile System, the Air Force Anti-Ballistic Missile defense system and later satellites for communication and Global Surveillance. stethoscope inventor black. In the late 1800s J.W. The stethoscope was accidentally invented by Dr.Rene Laennec in 1816 to avoid touching a female patient's chest directly. The cookie is used to store the user consent for the cookies in the category "Other. is sentiment analysis supervised or unsupervised, something went wrong the app was not installed apk, front range community college 2022 calendar. Morgan later would invent one of the first traffic signals and a new clutch for auto transmissions. 5 How much did the first stethoscope cost? Compare. It was invented by the French physician R.T.H. His invention made Jennings a wealthy man and he used his earnings to support early anti-enslavement activism and civil rights organizations. 3M and its authorized third parties will use the information you provided in accordance with our Privacy Policy to send you communications which may include promotions, product information and service offers. ThoughtCo. Ren Laennec, a French doctor and inventor was born 235 years ago today, and Google has marked his birthday with a Doodle. These 10 innovators are just a few of the many Black Americans who have made important contributions to business, industry, medicine, and technology. Weird Exam #1: Your Doctor Puts a Stethoscope on Your Back 18 T. A. Carrington, Stove Created in 1876, the stove is still in millions of households today. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The beautiful black finish of the tubing, chestpiece and binaurals create a distinctive appearance of style and sophistication. Latimer, the son of formerly enslaved people, began work in a patent law firm after serving in the military for the Union during the Civil War. View COVID-19 resources for health care professionals. Please supsribe. FACT CHECK: We strive for accuracy and fairness. Tunable diaphragm technologya 3M inventionlets you hear different frequency sounds by simply . Ren Lannecs invention of the stethoscope in the Hpital Necker in Paris in 1816 heralded a new era in clinical diagnosis. What would Elvis Presley have done without one? Bey asked a fourth-grade class. MDF Instruments offers a 90-Day Money Back Guarantee, Lifetime Warranty, Free-Parts-For-Life Program and Stethoscope Engraving. The 3M Littmann Master Cardiology Stethoscope is characterized by the best acoustic response in the Littmann mechanical stethoscope line; with a tunable diaphragm, dual-lumen tubing, and a precision, ergonomically designed, stainless steel chestpiece. She is known for her independent films and documentaries, including one about Alexander Graham Bell. Twice a week we compile our most fascinating features and deliver them straight to you. stethoscope inventor black. Blackwell began her pioneering journey after a deathly ill friend insisted she would have received better care from a female doctor. He developed methods of medical diagnosis from heart and lung sounds heard through the stethoscope. Walker became the first Black woman millionaire by inventing a line of cosmetics and hair products aimed at Black consumers in the first decades of the 20th century. The cookies is used to store the user consent for the cookies in the category "Necessary". 19 Madam C. J. Walker, Straightening Comb Madam C.J. Stethoscope, Inventor: Thomas A. Carrington, 1876. . 10 Important Black Inventors in U.S. History. The eartips were made of ivory. Her obesity made it difficult for him to place his hands on her heart and feel her heartbeat properly. Morse's stethoscope was a large, metal, handle-less tube that he used to listen to the chest sounds of others. Garima Loharuka, 10, said her favorite invention in the exhibit is the typewriter. Office of Naval Research / Flickr / CC-BY-2.0. Benjamin Banneker was a self-educated astronomer, mathematician, and farmer. . This cookie is set by GDPR Cookie Consent plugin. Perhaps his best-known innovation is for an X-ray spectrometer used to analyze distant galaxies and other deep-space phenomena, which he patented in 1984. In its gradual adoption by medical practitioners across Europe and America, the stethoscope emerged as a potent symbol of modern medical practice and the authority of the physician. Tunable diaphragm technologya 3M inventionlets . NASA's Goddard Space Flight Center / Wikimedia Commons / Public Domain. Most people have heard about famous inventions like the light bulb, thecotton gin and the iPhone. It was invented by a French physician, Rene Laennec, in 1816. Plans for the science center include expanding its existing small marine laboratory to about 8,000 square feet, adding aquariums, exhibits, an office and a classroom, said Bob Jensen, Edisons area manager for the beach cities. The first ever binaural literally looked liked a child's toy. George Washington Carver donated $33,000 in cash to the Tuskegee Institute to establish a fund to carry on the agricultural and chemical work he began. However, you may visit "Cookie Settings" to provide a controlled consent. This gave doctors a way to hear two sounds at the same time, which is an improvement in listening; There are also electronic stethoscopes that use microphones instead of listening tubes to amplify sounds and these can be sent through computer chips or across cell phones, making it possible to listen to a patients heart or lungs through speakers.
stethoscope inventor black