Whether you are a medical professional or a patient, you have probably heard of stethoscopes. But do you know the difference between an open bell and a closed bell stethoscope?
What is a bell in a stethoscope?
The bell is the small, cup-shaped piece at the end of the stethoscope. It amplifies sounds so that the user can hear them more clearly.
There are 2 types of bell designs – open and closed and their key difference lies in their design.
Summary of Open vs Closed Bell Stethoscopes:
An open bell stethoscope has a diaphragm that covers the entire surface of the bell. This design amplifies high-frequency sounds, making it ideal for listening to heart and lung sounds.
The open bell model is most effective in detecting lower pitch sounds, such as some heart murmurs and bowel sounds. It also can be used to detect bruits and for heart sound exams (when listening with the diaphragm, be sure to repeat with the bell).
A closed bell stethoscope has a small diaphragm that covers only part of the bell. This design amplifies both high- and low-frequency sounds, making it ideal for listening to both heart and lung sounds.
The closed bell model is most effective in detecting higher pitch sounds, such as some heart murmurs and bowel sounds. It also can be used to detect bruits and for heart sound exams (when listening with the diaphragm, be sure to repeat with the bell).
So, which type of stethoscope is right for you?
If you are looking for a versatile model that can be used for both heart and lung sounds, then a closed bell stethoscope is the way to go. If you are mainly interested in heart sounds, then an open bell stethoscope is a good choice. Whichever type you choose, be sure to get a high-quality model from a reputable manufacturer.
8 Key differences: Closed vs Open bell stethoscope:
1. Open bell stethoscopes have a diaphragm that covers the entire surface of the bell while closed bell stethoscopes have a small diaphragm that covers only part of the bell. For open bell stethoscopes, this design amplifies high-frequency sounds while for closed bell stethoscopes, this design amplifies low-frequency sounds.
2. Open bell stethoscopes are ideal for listening to heart and lung sounds while closed bell stethoscopes are ideal for listening to blood pressure and bowel sounds. It all has to do with the design of the diaphragm.
3. You can buy open bell stethoscopes that come with a second, smaller diaphragm that can be used for low-frequency sounds. This is not possible with closed bell stethoscopes.
4. Open bell stethoscopes are generally more expensive than closed bell stethoscopes.
5. Open bell stethoscopes are less likely to cause skin irritation than closed bell stethoscopes. This is because the diaphragm of an open bell stethoscope covers a larger surface area, making it less likely to come into contact with the skin.
6. Open bell stethoscopes are more likely to pick up ambient noise than closed bell stethoscopes. This is because the diaphragm of an open bell stethoscope is more sensitive to sound waves.
7. Open bell stethoscopes are more likely to get damaged than closed bell stethoscopes. This is because the diaphragm of an open bell stethoscope is more exposed and thus more vulnerable to being ripped or torn.
8. Open bell stethoscopes are less likely to transmit infection than closed bell stethoscopes. This is because the diaphragm of an open bell stethoscope is less likely to come into contact with the skin.
When using a double-sided Littmann stethoscope, you must open (or index) the side you want to use—bell or diaphragm—by rotating the chestpiece. If the diaphragm is open, the bell will be closed, preventing sound from coming in through the bell, and vice versa. This is not an issue with other brands of stethoscopes.
No matter what type of stethoscope you use, it is important to clean it after each use to prevent the spread of infection. You should also inspect your stethoscope regularly for signs of wear and tear. If you notice any damage, replace your stethoscope immediately.
https://over-the-counter-drug.com/# over the counter arthritis medicine
https://amoxil.science/# amoxicillin where to get
https://doxycycline.science/# online doxycycline
https://stromectol.science/# ivermectin lotion
Best and news about drug. Drug information.
stromectol 3 mg tablet
Actual trends of drug. Everything information about medication.
Read information now. Cautions.
ivermectin new zealand
Everything information about medication. Read information now.
Cautions. Everything what you want to know about pills.
ivermectin uk
Drugs information sheet. Get information now.
What side effects can this medication cause? Read information now.
https://stromectolst.com/# ivermectin stromectol
Get information now. Generic Name.
Comprehensive side effect and adverse reaction information. Comprehensive side effect and adverse reaction information.
https://stromectolst.com/# ivermectin where to buy
All trends of medicament. Everything information about medication.
Medscape Drugs & Diseases. Read now.
stromectol 3 mg tablet
Read information now. Read information now.
Read information now. Read information now.
https://stromectolst.com/# ivermectin 4000 mcg
Get information now. Some are medicines that help people when doctors prescribe.
Read information now. Everything what you want to know about pills.
https://stromectolst.com/# ivermectin canada
Read information now. Commonly Used Drugs Charts.
earch our drug database. safe and effective drugs are available.
stromectol 3mg cost
Everything what you want to know about pills. Get warning information here.
What side effects can this medication cause? Some trends of drugs.
https://stromectolst.com/# how much does ivermectin cost
Get warning information here. Get warning information here.
Medscape Drugs & Diseases. Learn about the side effects, dosages, and interactions.
ivermectin 5 mg
Cautions. Some trends of drugs.
Everything information about medication. Long-Term Effects.
ivermectin cost canada
What side effects can this medication cause? Everything what you want to know about pills.
Actual trends of drug. What side effects can this medication cause?
stromectol ivermectin
Long-Term Effects. Everything information about medication.
Generic Name. Everything information about medication.
ivermectin over the counter canada
What side effects can this medication cause? Comprehensive side effect and adverse reaction information.
Drug information. Top 100 Searched Drugs.
https://stromectolst.com/# ivermectin tablets order
Long-Term Effects. Prescription Drug Information, Interactions & Side.
All trends of medicament. Everything what you want to know about pills.
stromectol covid
All trends of medicament. Cautions.
Best and news about drug. Prescription Drug Information, Interactions & Side.
https://stromectolst.com/# buy ivermectin for humans uk
All trends of medicament. Get information now.
Everything information about medication. Everything about medicine.
where to buy stromectol
Drugs information sheet. Some are medicines that help people when doctors prescribe.
Good web site you’ve got here.. Itís hard to find high-quality
카지노사이트
writing like yours nowadays. I honestly appreciate people like
you! Take care!!
Everything what you want to know about pills. safe and effective drugs are available.
https://nexium.top/# can i order nexium without a prescription
Read information now. Read information now.
earch our drug database. Everything what you want to know about pills.
can you get cheap levaquin pills
Medicament prescribing information. safe and effective drugs are available.
safe and effective drugs are available. safe and effective drugs are available.
lisinopril 10 mg price
All trends of medicament. п»їMedicament prescribing information.
Get here. Drug information.
https://mobic.store/# can you get cheap mobic online
Get here. Drug information.
Commonly Used Drugs Charts. п»їMedicament prescribing information. can i get generic avodart without prescription
earch our drug database. Definitive journal of drugs and therapeutics.
Best and news about drug. Medscape Drugs & Diseases.
buying cheap levaquin tablets
Read information now. Comprehensive side effect and adverse reaction information.
Some trends of drugs. Read information now.
can you buy nexium for sale
All trends of medicament. Generic Name.
earch our drug database. Top 100 Searched Drugs.
lisinopril medication prescription
Comprehensive side effect and adverse reaction information. safe and effective drugs are available.
Get here. Learn about the side effects, dosages, and interactions.
where can i get generic nexium for sale
Actual trends of drug. Actual trends of drug.
Medscape Drugs & Diseases. drug information and news for professionals and consumers.
lisinopril 20 tablet
Read here. earch our drug database.
Some trends of drugs. Get here. generic avodart without dr prescription
Some trends of drugs. Drug information.
Some are medicines that help people when doctors prescribe. Drug information.
lisinopril 200mg
Get here. Read information now.
Top 100 Searched Drugs. Get here.
https://lisinopril.science/# lisinopril 2018
Medicament prescribing information. Definitive journal of drugs and therapeutics.
Best and news about drug. Everything about medicine.
buying levaquin without rx
Get warning information here. All trends of medicament.
Get warning information here. Long-Term Effects. where to get generic avodart
earch our drug database. earch our drug database.
Medicament prescribing information. Read now. amoxicillin online pharmacy
Learn about the side effects, dosages, and interactions. Commonly Used Drugs Charts.
Read information now. Medscape Drugs & Diseases.
can you buy generic clomid
п»їMedicament prescribing information. Actual trends of drug.
earch our drug database. Everything what you want to know about pills.
buy zithromax 1000mg online
Get information now. drug information and news for professionals and consumers.
Read now. Everything about medicine.
https://finasteridest.com/ get propecia without rx
Get here. Drugs information sheet.
Commonly Used Drugs Charts. Top 100 Searched Drugs.
get clomid no prescription
Commonly Used Drugs Charts. Generic Name.
drug information and news for professionals and consumers. drug information and news for professionals and consumers.
where can i buy generic propecia without a prescription
Learn about the side effects, dosages, and interactions. Read information now.
Read information now. Everything about medicine.
generic zithromax over the counter
Actual trends of drug. Get here.
Everything information about medication. Read now.
buy cheap clomid without dr prescription
Cautions. earch our drug database.
Generic Name. All trends of medicament.
order cheap clomid without dr prescription
Get warning information here. Prescription Drug Information, Interactions & Side.
Everything information about medication. Get warning information here.
buying cheap propecia online
earch our drug database. Actual trends of drug.
Read here. Everything about medicine.
how to buy cheap clomid price
Read information now. Generic Name.
Get here. Everything information about medication.
order zithromax without prescription
Generic Name. safe and effective drugs are available.
Medscape Drugs & Diseases. Read now.
how to buy propecia pill
Commonly Used Drugs Charts. safe and effective drugs are available.
Some trends of drugs. Medscape Drugs & Diseases.
https://clomiphenes.online cheap clomid prices
drug information and news for professionals and consumers. Prescription Drug Information, Interactions & Side.
Actual trends of drug. Get information now.
zithromax antibiotic without prescription
Everything information about medication. safe and effective drugs are available.
drug information and news for professionals and consumers. earch our drug database.
https://finasteridest.online can you get propecia without dr prescription
What side effects can this medication cause? Drug information.
Get here. Read here. amoxicillin canada price
Get here. Learn about the side effects, dosages, and interactions.
Some are medicines that help people when doctors prescribe. Commonly Used Drugs Charts.
https://edonlinefast.com best ed drug
Prescription Drug Information, Interactions & Side. Everything about medicine.
Actual trends of drug. drug information and news for professionals and consumers.
https://edonlinefast.com medicine for erectile
Some trends of drugs. Get information now.
Generic Name. Top 100 Searched Drugs.
the best ed pills
Commonly Used Drugs Charts. Read information now.
earch our drug database. Get here.
mens erection pills
Read now. safe and effective drugs are available.
Get warning information here. Read information now.
https://edonlinefast.com ed treatments
Drugs information sheet. Everything information about medication.
drug information and news for professionals and consumers. What side effects can this medication cause?
best pill for ed
Long-Term Effects. Everything information about medication.
Best and news about drug. Top 100 Searched Drugs.
medication for ed
Some trends of drugs. Top 100 Searched Drugs.
drug information and news for professionals and consumers. What side effects can this medication cause?
medications for ed
safe and effective drugs are available. Everything about medicine.
Drug information. Cautions.
https://canadianfast.com/# non prescription ed drugs
Learn about the side effects, dosages, and interactions. Long-Term Effects.
All trends of medicament. Read here.
https://canadianfast.com/# canadian drug prices
Top 100 Searched Drugs. Actual trends of drug.
Generic Name. Long-Term Effects.
global pharmacy canada
Definitive journal of drugs and therapeutics. safe and effective drugs are available.
Top 100 Searched Drugs. Everything information about medication.
canadian pharmacy online
Commonly Used Drugs Charts. Read here.
Long-Term Effects. Get here.
legal to buy prescription drugs from canada
Get warning information here. Get warning information here.
Long-Term Effects. Read now.
dog antibiotics without vet prescription
Commonly Used Drugs Charts. Definitive journal of drugs and therapeutics.
Learn about the side effects, dosages, and interactions. All trends of medicament.
https://canadianfast.com/# best ed pills non prescription
safe and effective drugs are available. Read here.
Some are medicines that help people when doctors prescribe. Get here.
https://canadianfast.com/# tadalafil without a doctor’s prescription
earch our drug database. drug information and news for professionals and consumers.
Read now. Read now.
canadian pharmacy cialis 20mg
Definitive journal of drugs and therapeutics. Everything information about medication.
Drug information. Get warning information here.
https://canadianfast.com/# prescription drugs online
Some are medicines that help people when doctors prescribe. Best and news about drug.
Read here. Drug information.
online canadian drugstore
Everything information about medication. Cautions.
Prescription Drug Information, Interactions & Side. Some are medicines that help people when doctors prescribe.
buy prescription drugs from canada
Commonly Used Drugs Charts. Read here.
Long-Term Effects. Read now.
cialis canadian pharmacy
Everything information about medication. Get here.
Read here. Actual trends of drug.
https://canadianfast.com/# anti fungal pills without prescription
Everything information about medication. Get information now.
Drugs information sheet. Everything what you want to know about pills.
canadian drugstore online
Drugs information sheet. Commonly Used Drugs Charts.
Best and news about drug. Definitive journal of drugs and therapeutics.
https://canadianfast.online/# ed meds online without doctor prescription
Get warning information here. earch our drug database.
Read information now. Medscape Drugs & Diseases.
sildenafil generic price uk
Read now. Some are medicines that help people when doctors prescribe.
Prescription Drug Information, Interactions & Side. Get information now.
usa over the counter sildenafil
Drug information. drug information and news for professionals and consumers.
Comprehensive side effect and adverse reaction information. Commonly Used Drugs Charts.
viagra 6 free samples
Some trends of drugs. Comprehensive side effect and adverse reaction information.
Medscape Drugs & Diseases. Prescription Drug Information, Interactions & Side.
https://viagrapillsild.com/# sildenafil buy canada
Get warning information here. Prescription Drug Information, Interactions & Side.
What side effects can this medication cause? Some are medicines that help people when doctors prescribe.
sildenafil 20mg brand name
Cautions. Read now.
Everything about medicine. Everything what you want to know about pills.
viagra online order mastercard accepted
Definitive journal of drugs and therapeutics. Get here.
Definitive journal of drugs and therapeutics. Get information now.
https://viagrapillsild.com/# sildenafil 105 mg
Cautions. Learn about the side effects, dosages, and interactions.
Comprehensive side effect and adverse reaction information. Cautions.
cialis dapoxetine online canada
Definitive journal of drugs and therapeutics. п»їMedicament prescribing information.
Learn about the side effects, dosages, and interactions. Actual trends of drug.
tadalafil 10mg generic
Everything about medicine. earch our drug database.
Get information now. п»їMedicament prescribing information.
https://tadalafil1st.com/# viagra cialis levitra trial pack
Top 100 Searched Drugs. Drug information.
Some trends of drugs. Learn about the side effects, dosages, and interactions.
whats better viagra or cialis
Actual trends of drug. Read information now.
Definitive journal of drugs and therapeutics. Prescription Drug Information, Interactions & Side.
https://tadalafil1st.online/# tadalafil price
Get information now. Some are medicines that help people when doctors prescribe.
Drugs information sheet. Comprehensive side effect and adverse reaction information.
buy tadalafil uk
drug information and news for professionals and consumers. Some are medicines that help people when doctors prescribe.
What side effects can this medication cause? Cautions.
generic cialis australia
Cautions. Top 100 Searched Drugs.
Medscape Drugs & Diseases. Commonly Used Drugs Charts.
cost of tadalafil in canada
Some are medicines that help people when doctors prescribe. Everything information about medication.
Generic Name. Long-Term Effects.
generic cialis 200 mg
Some are medicines that help people when doctors prescribe. Best and news about drug.
Everything about medicine. Read now.
buy tadalafil in usa
Get information now. Cautions.
Read now. Everything about medicine.
tadalafil soft gel capsule
Everything information about medication. earch our drug database.
safe and effective drugs are available. Read now.
https://tadalafil1st.com/# generic tadalafil no prescription
safe and effective drugs are available. Generic Name.
Some trends of drugs. Comprehensive side effect and adverse reaction information.
https://tadalafil1st.com/# oryginal cialis
earch our drug database. Everything about medicine.
Do you mind if I quote a couple of your articles as long asI provide credit and sources back to your website?My blog site is in the very same niche as yours and my users would certainly benefit from some of the information you present here.Please let me know if this okay with you. Thanks!
Best and news about drug. Top 100 Searched Drugs.
buy zithromax canada
Some are medicines that help people when doctors prescribe. п»їMedicament prescribing information.
Can lack of sleep cause high blood pressure – Buy Stromectol 3 mg online
Everything information about medication. Some are medicines that help people when doctors prescribe.
how to get generic clomid for sale
Read here. Generic Name.
Best and news about drug. Top 100 Searched Drugs.
where to buy clomid without prescription
Read information now. Everything information about medication.
Your explanation is organized very easy to understand!!! I understood at once. Could you please post about casinocommunity ?? Please!!
what is levitra cialis vs levitra levitra.
What is the ultimate goal of treatment in asthma albuterol 100mcg?
Best online kratom shop http://www.kratomcore.com
Pretty section of content. I simply stumbled upon your site and in accession capital to assert that I
get in fact loved account your weblog posts. Anyway I’ll be subscribing to“강남풀싸롱”your feeds or even I achievement you get entry to constantly rapidly.
le viagra http://parleviagra.com/ posologie viagra
How do you determine the quality of a medicine vardenafil cost?
how much is clomid prescription
hydroxychloroquine tablets plaquenil and weight loss buy hydroxychloroquine online
https://ventolin.club/ – What conditions does albuterol sulfate treat ventolin 2mg usa?
Is it OK to take painkillers with antibiotics order stromectol 12mg?
What Causes Love at first sight cialis Generic
Reading your article has greatly helped me, and I agree with you. But I still have some questions. Can you help me? I will pay attention to your answer. thank you.
metronidazole cystitis topical metronidazole and pregnancy metronidazole buying
Medicine information leaflet. What side effects can this medication cause? viagra tablet for men All back medicament. Read communication now.
Is there a pill I can take to suppress my appetite dapoxetine