How do endoscopes work




















The procedure is particularly useful in the diagnosis of injuries to the joint as well as any diseases that may affect the joints. Bronchoscopy - In bronchoscopy, the healthcare professional uses a bronchoscope to visualize the airway. The procedure allows the doctor to closely examine all the parts of the airway including the throat, the larynx as well as the trachea.

Bronchoschopy is divided into flexible and rigid bronchoscopy. Whereas a long, thin and flexible tube is used in flexible bronchoscopy, a straight and hollow metal tube is used in rigid bronchoscopy and requires the use of general anesthesia unlike with flexible bronchoscopy. Bronchoscopy is used to detect any problems with the airway system and thus treat the problem. Endoscope Biopsy - Using this procedure, the physician inserts an endoscope through a body opening or a tiny incision to reach the area of interest.

Laparoscopy - This is a procedure where the endoscope is inserted into the body through a tiny incision for the visualization of various abdominal organs as well as surgery if need be.

Return to Surgical Microscopes. Return from learning about Endoscopes to MicroscopeMaster Home. Methanobacteria is a class of the phylum Euryarchaeota within the domain Archaea. Read more here. The Islets of Langerhans is an endocrine tissue located within the pancreas. It consists of a variety of cells capable of producing different hormones.

Hydrogen-oxidizing Bacteria are species that can use gaseous hydrogen as the electron donor to oxidize hydrogen. The material on this page is not medical advice and is not to be used for diagnosis or treatment. Although care has been taken when preparing this page, its accuracy cannot be guaranteed. Scientific understanding changes over time.

MicroscopeMaster is not liable for your results or any personal issues resulting from performing the experiment. The MicroscopeMaster website is for educational purposes only. The ionising properties of X-rays mean that they can damage the DNA in cells. The ionising effect of X-rays is more damaging to actively dividing cells in the body.

Low doses of X-rays may cause cancer, whereas high doses may kill cancerous cells. Medical uses of optical fibres Endoscope Endoscopes use optical fibres to produce an image of inside the body.

CT scans Traditional X-ray imaging gives a two-dimensional 2D view of the body from one angle. Endoscope v CT scans Endoscopy is used to investigate specific areas of the body. CT scans produce 3D images of the body. Endoscopy produces 2D images of the body. As the capsule travels through the digestive tract, it takes thousands of pictures, which are transmitted to a device attached to a wearable belt.

Capsule endoscopy is used to image the small intestine, a region that is difficult to image using standard endoscopy. The capsule usually passes through the digestive system within hours. To date, more than , capsule endoscopy procedures have been carried out, and nearly 1, articles have been published covering its clinical use. The procedure does not require an overnight stay in the hospital and usually only takes around 1 hour to complete.

The doctor will provide instructions about the preparation for the procedure. For many types of endoscopy, the individual needs to fast for around 12 hours, though this varies based on the type. For procedures investigating the gut, laxatives may be taken the night before to clear the system.

A doctor will carry out an examination before the endoscopy. It is important to mention all current medications including supplements and any previous procedures. Sometimes, endoscopy will be combined with another procedure such as an ultrasound scan. It can be used to place the ultrasound probe close to organs that can be difficult to image, such as the pancreas. Modern endoscopes are sometimes fitted with sensitive lights that use narrow band imaging. This type of imaging uses specific blue and green wavelengths that allow the doctor to spot precancerous conditions more easily.

An endoscopy is typically performed while the patient is conscious, although sometimes the patient will receive local anesthetic commonly an anesthetic spray to the back of the throat ; often, the patient is sedated. For endoscopy procedures involving entry through the mouth, a mouth guard will be used to protect the teeth and lips as the tube is inserted.

Endoscopy has advanced in recent years, enabling some forms of surgery to be conducted using a modified endoscope; this makes the surgery less invasive. Procedures such as the removal of the gallbladder, sealing and tying the fallopian tubes and the removal of small tumors from the digestive system or lungs are now commonplace. A laparoscope is a modified endoscope used for keyhole surgery also referred to as laparoscopic surgery.

Laparoscopic surgery requires only a small incision and can be used for appendectomies removal of the appendix , hysterectomies removal of the uterus and prostatectomies removal of prostate tissue. Using this technique, patients lose less blood during and after surgery and can recover much faster compared with standard surgical procedures.



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