Questions tagged [medical-device]

For questions about the usage of medical devices (e.g. CT, MRI, Orthoses, ...)

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58 views

Do US hospitals use pulse oximeter with sensor (not electronics) directly on wrist, base of the finger (ring), or on the chest?

I am trying to figure out why most hospital it still seems to predominantly use fingertip sensor (LED+photodiode) based oximeter for SpO2. I tried searching for example of FDA 510(k) cleared oximeter ...
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51 views

Why have we striven to accurately biosense things?

As you may know, there are medical devices to track things to some certain points, like glucometers. Question is why do we strive to track such things (take glucose level for example) more accurately? ...
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50 views

PR depressions on ECG when a patient has pericarditis

Can someone please explain why PR depressions are seen on an ECG when a patient has pericarditis? That is, from an electrophysiological perspective: What are the exact changes on the cell membrane ...
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28 views

Complexity and medical constraints vs Open Source Ventilator

This is a question to experts in medical engineering with specialization on lung ventilators. Let's take a "simpler" design than a full-featured ICU. We know typically medical devices are complex ...
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87 views

Why don't we use complete white medical suits to have full protection instead of only masks?

If Covid-19 can float in the air over particles and be there for up to 3 hours (1:50 minute), and if the virus could get into your system through eyes, nose or mouth (See Spread from contact with ...
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138 views

Why Aren't There Any OpenSource/OpenHardware Ventilators?

During the COVID-19 pandemic, ventilators are in short supply. As an engineer, I am interested in learning the risks/challenges of designing an OpenSource ventilator. And how it could be tested for ...
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26 views

Is it possible, and what would be required to modify a ventilator to support two patients concurrently?

An article from a pediatrician on NYT suggested this as a possibility, I'm keen to know if it could be done in an emergency/shortage situation. If so: What would the challenges be from a mechanical/...
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140 views

Technology prospects for genome sequencing at home and data protection

Ever since the end of the Human Genome project we have been witnessing the steady advance of genome sequencing technology and the decline of the price required to perform it. This lead to the advent ...
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38 views

How often is a microscope used

I am planning on studying Graduate Entry into Medicine (4 years instead of 6 for people that already have a degree) in the UK. Microscopes really irritate my eyes. I think in the UK we still have to ...
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114 views

Is ShockWave Therapy Useful For ED or not?

I read the following in an article from a Facebook page for a clinic in the Lebanon region, and I am trying to know if this choice is good or not?: Extracorporeal ShockWave Therapy, or ESWT, is a ...
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1answer
76 views

What software are there to use on laptop for blood analysis and diagnosis?

I wanted to know if there are any softwares that by installing on a notebook can allow me to do initial diagnosis of a patient at ordinary locations. Does anybody know what softwares are there or ...
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53 views

Operating principles of a ventilator in CPAP mode

On my book there are 8 rows about operating principles of a ventilator in CPAP mode (not pressure support in spontaneous mode): What does sensitivity level mean? In figure there is inspiration ...
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How to publish a new orthodontic technique/device? [closed]

I am not an orthodontist but a physicist. But while discussing a certain orthodontic technique with an experienced board-certified orthodontist (who graduated and practice in the US), it became ...
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417 views

Ice bath cryolipolysis?

I've been hearing advertisements for a new fat reduction treatment called CoolSculpting, in which areas of fat are brought down to below the freezing point of fat but above the freezing point of water,...
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29 views

Are there any real-world application in a bone fracture detection program?

Sorry if I'm asking in the wrong community, but here's where I think I can reach more people in the medical field. I am in engineering, for a project in my uni, I thought of doing a research on ...
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2answers
320 views

What CGM systems don't require fingerstick calibration?

Most continuous glucose monitoring (CGM) systems require you to still do fingerstick blood testing on a daily basis in order to calibrate them. But that defeats the purpose of why people want CGM ...
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127 views

Are there any insulin pumps which are attached for more than a few days?

People with Type II Diabetes requiring long-acting insulin can inject themselves once a day with a syringe or insulin pen, but there is an alternative to that: insulin pumps. Insulin pumps provide a ...
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1answer
67 views

Are there any non-injection methods of delivering long-acting insulin?

Affreza is an inhaler that delivers rapid-acting insulin through inhaling rather than injection. But my question is, are there any methods of delivering long-acting insulin that do not require an ...
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53 views

Mercury fails to rise in thermometer

I have a mercury (Hg) thermometer manufactured by Ballo Thermometers (in Leesburg, Florida) circa May 1969. On the backside is printed “MICH 42”, which is apparently the name of its stereotype. The ...
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49 views

How is the workflow of physical examination's documentation in the USA exactly?

e.g. do you use paperforms, EHR masks? Do you type directly into a physician letter? In Germany we use mostly a paper form in the first place and afterwards we document the results into a report. You ...
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1answer
740 views

Are cell phones still prohibited from the ER or other medical facilities? Why or why not?

A decade + ago, I've been told that cell phones disrupt the medical devices in medical facilities, especially in the ER; thus, cell phones have been prohibited from the ER or other designated areas ...
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47 views

How accurately can a smart phone measure pulse oximetry?

I want to create a medical application on Android and iOS, but I need to know what the difference is. I made a test, and know that the pulse oximeter is accurate. Is it possible for a smart phone to ...
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39 views

Efficacy of home radio frequency devices for skin treatment

I recently stumbled across a story about a new type of digital monopolar radio frequency device called Efficy that apparently combines several different methods for tightening existing collagen fibres ...
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1answer
91 views

Dataset for Tele-medicine Vital Signs

I'm a newbie to medical and healthcare informatics. I need to access some raw telemedicine dataset including vital signs for a single person over a specific period of time. Basically my questions are: ...
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Where to find a medical alert system without monthly payment?

I have been using alert1 for awhile, but recently my liabilities increase as my daughter suddenly got divorce. I am not sure how long will this last, but I plan to replace my mom's medical alert to ...
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1answer
156 views

What is the name of medical instruments for laparoscopy?

When you look at the following image, you can see at least two types of medical instruments for laproscopy: On the photo, there are: a scissor (the green one) tweezers (yellow and blue) I've also ...
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742 views

If sphygmomanometer literally cuts off the blood flow, is it gonna kill the patient if pressure is not released?

As the title says. I just learnt how sphygmomanometer works. If it cuts off the blood till I decrease the pressure to the highest blood pressure, then shouldn't it cause serious problems? Even in ...
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186 views

Mechanical cardio resuscitation for asystole

We have great machines for shocking a heart out of various malfunctions. But my understanding is that the only "machine" indicated for restarting a heart that has completely stopped (i.e., "flat-...
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1answer
392 views

Can Manual External Defibrillators "restart" a heart?

On TV it appears that every time a heartbeat monitor flat-lines they pull out the paddles of a manual external defibrillator (MED) and give a few shocks, often explicitly cranking up the output when ...
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1answer
48 views

Interpreting DXA results myself

I want to determine my body fat percentage. Every hospital here in Bangkok offers me the InBody method, which is based on Bio Electrical Impedance and highly sensitive to my hydration levels in the ...
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1answer
81 views

Why does hemodialysis need to done for so many hours?

Does hemodialysis take so many hours because the dialyser is inefficient (in other words, every time blood passes through the dialyser only a small fraction of the waste is removed) or because there ...
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1answer
1k views

What is proper capacity of adult non-rebreather masks?

I've looked at a few different brands of non-rebreather "adult" masks and all of them have reservoirs of about 1L. Even connected to 100% oxygen There is no way that's going to give an average adult ...
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18 views

Is multi-test II device the real deal for determining a person's allergies?

I have been experiencing chronic dizziness - most of the time, lightheadedness and seldomly with vertigo attacks since July 2015. I have already had my ear, eye, brain (mri), heart (2d echo, holter ...
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32 views

Should plasma and platelet donors be concerned about exposure to plasticizer compounds?

Once removed from the body, blood products have prolonged contact time with a large surface area of plastic: probably close to 2 metres of tubing, butterfly needle + attachment centrifuge bowl (...
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33k views

What does "sinus rhythm otherwise normal ECG" mean?

I just recently made an ECG to be able to participate in a study and I am curious what "sinus rhythm otherwise normal ECG" means. Is my sinus rhythm out of order? A doctor will be checking my ECG and ...
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118 views

Medical imaging - image quality?

Are there any resources or literature that spell out the factors affecting image quality for each of the main imaging techniques or can someone provide such a list?
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53 views

Do clear aligners really work?

My lower jaw is not perfectly aligned, especially the canine teeth(lower jaw) are a bit crumpled. I will turn 21 next month and opting for braces is not a viable choice for me. Someone, suggested me ...
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1answer
9k views

How can doctors remove a stye without damaging the eyeball?

I had a stye, and a doctor used a needle to remove it. The procedure was simple and didn't even cause any bleeding. How is this possible?
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1answer
113 views

Why is defibrillation commenced before CPR in ventricular fibrillation?

I know CPR is usually commenced before defibrillation in a medical emergency, however we learned that defibrillation should be done before CPR in the case of ventricular fibrillation. Is there a ...
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1answer
14k views

Difference between TENS and EMS electro stimulation?

Transcutaneous Electrical Nerve Stimulation (TENS) and Electrical Muscle Stimulation (EMS) are described by product manufacturers (and wikipedia!) as two separate things. However, I have been unable ...
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5k views

Can I hear ultrasounds?

I have noticed that every time I am in the same room as an operating ultrasound machine, I can hear it. And not the machine making noises, but the actual ultrasounds (I know because it decreases in ...