Optical fiber laser treatment device capable of exchanging laser knife head

Abstract

The invention provides an optical fiber laser treatment device capable of exchanging a laser knife head. The optical fiber laser treatment device is characterized in that the knife head can be detachably connected with the laser conduction optical fiber, and the knife head can extend out of the working channel during treatment. The knife head is provided with a protection sleeve, which can preventcontamination of the working channel during treatment. After use, only the knife head can be replaced, and the expensive endoscope part can be reused.

Description

technical field [0001] The invention relates to the field of laser therapy, in particular to an optical fiber laser therapy device with a replaceable laser cutter head. Background technique [0002] Laser has been widely concerned in the field of surgery because of its excellent cutting ability, good coagulation effect and small thermal damage. The high-energy pulsed laser generated by the laser is transmitted through the optical fiber, and then the optical fiber enters the human body through the endoscope, and the energy of the laser is transmitted to the part that needs laser treatment. Features, effective and safe treatment for patients. Thulium-doped fiber lasers can output laser light with a wavelength of 1.65-2.1um, which is the widest among all rare earth ions. Compared with solid-state lasers, it has simple structure, high efficiency, good heat dissipation characteristics, narrow line width, and high-quality output laser beams. Therefore, the thulium fiber laser wi...

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Problems solved by technology

[0004] There are two kinds of laser cutter heads, contact type and non-contact type. The more common one is the non-contact type. For example, the patent document with the publication number CN204814176U discloses a fiber laser scalpel, and the outgoing light emitted by the laser fiber is irradiated through the transmission window. The target tissue, but this kind of cutter head has the problem of single outgoing light direction and cannot penetrate into the narrow part for treatment. The contact cutter head will contact the tissue during treatment, and it will pollute the working channel during use, resulting in the inclusion of the working channel. Endoscopes are single-use only or require complex cleaning and disinfection processes

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