Electronic laparoscope with front end LED illuminating function

Abstract

The invention provides an electronic laparoscope with a front end LED illuminating function. The electronic laparoscope comprises a tube assembly, and the tube assembly comprises an illuminating assembly, a connecting sleeve, a lens, an image sensor assembly, a heat insulation pad, a rear end heat radiator and a steel tube. The illuminating assembly is located at the front end of the tube assembly, and the illuminating assembly is fixed to the connecting sleeve. The connecting sleeve is connected with the rear end heat radiator. The rear end heat radiator is fixed into the tube, and the illuminating assembly is located at the front end of the tube. The lens, the image sensor assembly and the heat insulation pad are located in the tube. The front end of the lens and the front end of the image sensor assembly are in butt joint with the illuminating assembly, and the rear end of the lens and the rear end of the image sensor assembly are in attached connection with the heat insulation pad.The electronic laparoscope has the advantages that the problem heat radiating of the front end is hard is solved, and therefore application of front LED illumination in the electronic laparoscope isachieved.

Description

technical field [0001] The invention relates to an electronic laparoscope, in particular to an electronic laparoscope with LED lighting at the front end. Background technique [0002] The front-end illumination of the existing electronic laparoscope basically adopts a cold light source. The light from the cold light source light box is guided to the endoscope handle through the light guide, and then guided to the front end of the lens through the light guide inside the endoscope handle. [0003] Some electronic endoscopes place tiny LEDs directly on the front end without an independent cold light source. However, due to the heat generation of LEDs, it is difficult to handle, and excessive temperature will cause burns in human body tissues. Therefore, LED front-end technology is mostly used in the field of industrial endoscopes; [0004] For medical endoscopes, this method is mostly used for inspection endoscopes with relatively short distance, small operating space, and low...

AI Technical Summary

Problems solved by technology

[0007] 1. The cost of using cold light source light box lighting is relatively high;

[0008] 2. The guide beam is easy to break during use;

[0009] 3. The head temperature of the electronic inner lens is lower than the body temperature, and the lens protection window glass is easy to fog when the head is inserted into the human body without preheating;

[0010] 4. Some products solve the fogging problem of the protective window glass by adding a heating device on the head, which makes the head structure more complicated

[0012] 1: The heating of the LED during long-term work may cause the surface temperature of the head to greatly exceed 41 degrees Celsius, which may cause high-temperature burns to the tissues it touches. Therefore, the method of lighting the LED at the front end is mostly used for temperature control requirements such as industrial endoscopes Not a very strict product;

[0013] 2: The high temperature of the head may also cause the temperature of the nearby image sensor to rise, causing the thermal noise of the image sensor to increase, thereby affecting the image quality;

[0014] 3. High temperature also adversely affects the life of the lens and image sensor

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