nèi kuī jìng
2 English Referencesplanchnoscope
an endoscope
An endoscope is introduced into the human body by using a natural orifice or incision in the surface of the body, and it can be used to examine tissues such as the esophagus, gastrointestinal tract, trachea, lungs, bladder, joints, and even tissues of the brain. Miniature endoscopes can be introduced into hard-to-reach places such as bile ducts and pancreatic ducts. Some endoscopes, such as the *** mirror can be used for surgical procedures such as ligation and contraception, in addition to checking gynecological diseases. Endoscopes play an important role in the diagnosis and treatment of diseases.
In 1881, the Polish surgeon Mikulich designed a set of gastric diagnostic tubes equipped with illumination and lenses. Later instruments were made to examine the large intestine and bladder. The modern sense of endoscopy evolved with the invention of the fiber-optic endoscope, a fully flexible endoscope first used by Dr. Herschwitz in Michigan in 1958.
A fiber-optic endoscope is a thin, flexible tube with a bundle of light-conducting glass fibers and a lens at each end. One end of the tube is inserted into the organ to be examined inside the body, and from the other end you can see inside the organ. Endoscopes are usually accompanied by an illuminating light source, and some are also equipped with instruments for surgical treatment, such as lasers.
A new type of charge-coupled device (CCD) endoscope was first developed in 1983 by Welch-Elling Instruments in New York State, U.S. The end of the CCD endoscope inserted into the body is fitted with a silicon chip on the integration of the CCD "lens", which is actually a new type of photoelectric image sensor. A new type of photoelectric image sensor, its function is similar to the TV camera. It can be investigated parts of the image into a digitalized electrical signals, images transmitted through the metal wire, similar to the TV receiver by the "image monitor" display. The application of this technology, so that the image of the storage, reproduction, consultation and computer management becomes possible.
4 M2A Micro-EndoscopeThe latest version of the M2A micro-endoscope can be taken like a pill. (AFP)
Internal structure of the M2A Micro-Endoscope: 1, optical round cover 2, lens fixation ring 3, lens 4, illuminating light-emitting diode 5, complementary metal-oxide semiconductor imager 6, battery 7, dedicated integrated circuit 8, antenna
The latest M2A Micro-Endoscope has been called a "camera in a pill.
The latest M2A micro-endoscope, known as the "camera in a pill".
Doctors at Louisville Jewish Hospital and UofL Health Care University Hospital in Kentucky, USA, are using this latest medical technology to examine patients.