Classification and application of endoscope

Endoscopic classification

 

In terms of application, it can be divided into two simple categories, namely, industrial endoscope and medical endoscope.

 

About the types of industrial endoscope, from the imaging form can be divided into: optical endoscope, optical fiber endoscope, electronic endoscope, CCD video endoscope, CMOS video endoscope, electric 360° endoscope .The types of endoscope light sources are divided into high frequency fluorescent lamp endoscope, fiber halogen lamp endoscope and LED endoscope .

 

Medical endoscope classification, according to its development :

Classification of imaging structure: it can be roughly divided into three categories:

 

hard tube endoscopy, optical fiber (flexible tube) endoscopy and electronic endoscopy.

 

There are many different types of endoscopes for medical examination, which are classified in different ways. Generally speaking, there are three types of endoscopes that are more common. In terms of marketing, the most commonly used types are divided into hard mirror and flexible mirror based on whether the direction can be changed clinically.

 

 

As per the function of the endoscope:

 

Divided into single function mirror and multi-function mirror. Single-function mirror refers to the observation mirror with no working channel and only optical system. In addition to the function of an observation mirror, a multifunctional mirror also has at least one or more working channels in the same body, with lighting, surgery, flushing and attracting functions.

 

As far as the endoscope goes:

According to the different parts of the endoscope to reach the classification: ear, nose and throat endoscope, oral endoscope, dental endoscope, neuroscope, urethral cystoscope, electric incision scope, laparoscope, arthroscope, sinus scope, laryngoscope, etc.

 

Clinical application of endoscopy:

 

1. Examination of gastrointestinal diseases

(1) Esophagus: chronic esophagitis, esophageal varices, esophageal hernia, esophageal leiomyoma, esophageal cancer and cardiac cancer, etc.

 

(2) Stomach and duodenum: chronic gastritis, gastric ulcer, benign gastric tumor, gastric duodenal ulcer, duodenal tumor.

 

(3) Small intestine: small intestine tumor, smooth muscle tumor, sarcoma, polyp, lymphoma, inflammation, etc.

 

2. Examination of pancreatic and biliary diseases: pancreatic cancer, cholangitis, cholangiocarcinoma, etc.

 

As a reliable optical products manufacturer, we can offer kinds of precision optical components for sale, anything you need, please contact us.

 

If you wan to know more kinds of precision optics, please visit our website.

 



评论

发表评论

此博客中的热门博文

Quarter-wave plate

图片
  The 1/4 wave plate uses the anisotropic characteristics of the material to have different refractive indexes and propagation speeds for light in different polarization directions, resulting in a phase difference between the two components, and converting linearly polarized light into circularly polarized light, or converting circularly polarized light into linearly polarized light.   The 1/4 wave plate can realize the mutual conversion between linearly polarized light and circularly polarized light. Clever use of wave plates can also generate optical isolators, or simultaneously change the propagation direction and polarization direction of light.   The 1/4 wave plate can be applied to the laser. In the laser cavity, two quarter-wave plates placed on both sides of the gain medium can achieve single-frequency operation. A half-wave plate is placed between the laser crystal and the resonator mirror to reduce the depolarization loss. The combination of a half-wave plate and a polarizer
阅读全文

Polarization Beamsplitter Cube (PBS)

图片
  Polarizing Cube Beamsplitters  Introduction Polarization beamsplitter cube  split randomly polarized beams into two orthog-onal, linearly, polarized components-S-polarized ligh is reflected at a 90°.   Angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angleprism cemented together with a dielectric coating on the hypotenuse of one of prism.   The coatings have been designed to hold both the S-and P-polarization components to the same ratio of reflection-to-transmission over aspecific laser wavelength region.   This means that they will not change the state of polarization of the incident beam. The low polarization dependence of the metallic-dielec-tric coating allows the transmission and reflection for S-and P-polarization states to be within 6% of each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating. We offer both broadband and single wavelength.   Standard
阅读全文

What is a Double Concave Lens?

图片
  1. Introduction to double concave lens A double concave lens is also called a negative spherical lens. The middle of the lens is thin, the edge is thick, and it is concave, so it is also called a concave lens, which has a divergent effect on light.   The imaging law of the concave lens is: when the object is a real object, it becomes an upright, reduced virtual image, and the image and the object are on the same side of the lens. The concave lens has a divergent effect on the light, so the lens is also called a divergent lens, a negative spherical lens.   2. Features of biconcave lens: A double concave lens is concave on both sides and has the same radius of curvature. A double concave lens with a negative focal length is usually used for beam collimation, increasing (decreasing) the focal length or enlarging (shrink) the image.   The double concave lens has a negative focal length and is often used in imaging or beam collimation applications. The coated lens is also widely used in v
阅读全文