The invention relates to a device for rercutaneous interventional minimally-invasive treatment of a 
tuberculosis focus 
in vivo, which comprises a 
fiberscope assembly with 
light guide, a 
light source generating device, an 
image processor, a negative pressure suction device, a high-pressure water pump, an 
air pump and the like, wherein the 
fiberscope assembly with the 
light guide comprises a 
quartz glass 
optical fiber lens for transmitting 
ultraviolet rays and illumination light, a lens body, a lens 
tail, a front tube of the lens body and a rear tube of the lens body, 
quartz glass optical cables for transmitting the 
ultraviolet rays and the illumination light are arranged in the front tube of the lens body and the rear tube of the lens body, the 
quartz glass optical cables are connected between the quartz glass 
optical fiber lens and the 
light source generating device, the 
light source generating device comprises an 
ultraviolet ray generator and an illumination light generator, and the ultraviolet 
ray generator and the illumination light generator are connected with the quartz glass optical cables in parallel. The device utilizes the quartz glass 
optical fiber lens and the quartz glass optical cables for transmitting the ultraviolet rays and radiating the 
tuberculosis focus 
in vivo, thereby killing mycobecterium 
tuberculosis of the tuberculosis focus 
in vivo, sucking and eliminating tuberculosis 
abscess in vivo through the negative pressure suction device and further realizing the minimally-invasive treatment of the tuberculosis focus in vivo.