விரிவாக தெரிந்து கொள்ள வீடியோ வை கிளிக் செய்யவும்



Friday 31 January 2020

corona virus and Thermal Screening







Coronavirus and Thermal Screeing 

A coronavirus is a kind of common virus that causes an infection in your nose, sinuses, or upper throat. 

A coronavirus can infect both animals and humans.

Most coronaviruses spread the same way other cold-causing viruses do: 

through infected people coughing and sneezing, 

by touching an infected person's hands or face, 

or by touching things such as doorknobs that infected people have touched.



Common Symptoms of Coronavirus

The symptoms of most coronaviruses are similar to any other upper respiratory infection,including 

runny nose, 

coughing, 

sore throat 

and fever.



Thermal Cameras

All live objects emit infrared energy or heat. Unlike regular cameras that record 

light reflected by objects, thermal cameras use heat sensors that can record heat 

generated by the body of a person or an object to create a 2D image with differing temperature levels. 

When a person stands before the cameras, on the computer screens the hotter objects are 

highlighted with a different colour palette than the rest.These cameras can be calibrated 

to detect abnormal body temperatures such as over 101 degrees.



Thermal cameras are effective only to the point of telling 

who has a higher body temperature or is running a high fever. 

It may not mean the person is infected with coronavirus. 

Additional screening systems are needed for that. 

Friday 24 January 2020

லேப்பராஸ்கோப்பி அறுவை சிகிச்சை எப்படி செய்யப்படுகிறது? Laparoscopic surgery





Laparoscopy and Laparoscopic surgery 

Laparoscopy is a type of surgical procedure that allows a surgeon to access the 

inside of the abdomen (tummy) and pelvis without having to make large incisions in the skin.

This procedure is also known as keyhole surgery or minimally invasive surgery.

Large incisions can be avoided during laparoscopy because the surgeon uses an instrument called a laparoscope.This is a small tube that has a light source and a camera, 

which relays images of the inside of the abdomen or pelvis to a television monitor.



Procedure

During laparoscopy, the surgeon makes a small cut (incision) of around 1 to 1.5cm (0.4 to 0.6 inches), usually near your belly button.A tube is inserted through the incision, and carbon dioxide gas is pumped through the tube to inflate your tummy (abdomen). Inflating your abdomen allows the surgeon to see your organs more clearly and gives them more room to work. A laparoscope is then inserted through this tube. The laparoscope relays images to a television monitor in the operating theatre, giving the surgeon a clear view of the whole area.If the laparoscopy is used to carry out a surgical treatment, such as removing your appendix, further incisions will be made in your abdomen. Small, surgical instruments can be inserted through these incisions, and the surgeon can guide them 

to the right place using the view from the laparoscope. Once in place, the instruments can be 

used to carry out the required treatment.After the procedure, the carbon dioxide is 

let out of your abdomen, the incisions are closed using stitches or clips and a dressing is applied.

Wednesday 8 January 2020

உயிர் காக்கும் கருவி- AED - தெரிந்து கொள்வோம்---எப்படி இதயத்திற்கு ஷாக் கொடுக்கப்படுகிறது?





Automated External Defibrillator - Quick and Easy reference

An automated external defibrillator (AED) is a

lightweight, portable device that delivers an

electric shock through the chest to the heart. 



Sudden Cardiac Arrest occurs when the heart malfunctions and

stops beating unexpectedly. If not treated within

minutes, it quickly leads to death.

Most SCAs result from ventricular fibrillation (VF). 



How does an AED work?

A built-in computer checks a victim’s heart rhythm

through adhesive electrodes. The computer calculates

whether defibrillation is needed. If it is, a recorded

voice prompts the rescuer to press the shock button

on the AED. This shock momentarily stuns the heart

and stops all activity. It gives the heart the chance to

resume beating effectively. Audible prompts guide the

user through the process. AEDs advise a shock only

for ventricular fibrillation or another life-threatening

condition called pulseless ventricular tachycardia.



Non-medical personnel such as police, fire service

personnel, flight attendants, security guards and other lay

rescuers who have been trained in CPR can use AEDs.

Although formal training in the use of an AED is not

required, it is recommended to help the rescuer increase

their comfort and level of confidence. However, AEDs

are intended for use by the general public. Most AEDs

use audible voice prompts to guide the user through the

process.

முறிந்த எலும்புகள் எப்படி தன்னைத்தானே சரிபடுத்திக் கொள்கிறது? How does a bone heal?

How does a bone heal? The immediate response to a fracture is bleeding from the blood vessels dotted throughout our bones.New bone starts to...