Disposable laser metal thermal therapy target head

Abstract

The invention discloses a disposable laser metal thermal therapy target head. A target head main body comprises an aluminum-titanium alloy and a pure silver coating; the target head main body is a cylinder with a conical head at the front end and is made of aluminum-titanium alloy, and the outer wall of the front end of the target head main body is coated with a pure silver coating; the rear end of the target head main body is an extension plastic pipe, a plastic pipe vacuum heat preservation layer is arranged in the circumference of the section of the extension plastic pipe, and the space between the extension plastic pipe and the plastic pipe vacuum heat preservation layer is filled with a heat preservation material; an optical fiber hollow channel, a thermocouple channel and an automatic temperature control thermo-sensitive material channel are arranged at the rear part of the front end of the target head main body, and an optical fiber is connected to a laser emitter through an optical fiber connector; the rear end of a linear automatic temperature control thermo-sensitive material is inserted into an optical fiber wire connected to the laser emitter; and the laser emitter andthe temperature sensor are connected to a control computer through data transmission lines. According to the laser thermal therapy target head, the thermal therapy action area of the laser target headcan be remarkably increased, local heating caused by laser energy accumulation is avoided, and the laser thermal therapy treatment effect is enhanced.

Description

technical field [0001] The invention relates to a laser hyperthermia device, in particular to a disposable medical laser hyperthermia target head, which is mainly used in a laser hyperthermia optical fiber protection device. Background technique [0002] Prior art (Lee Chin, Mihaela Pop, et al.Optical method using fluence orradiance measurements to monitor thermal therapy [J]. Review of Scientific Instruments 74,393 (2003) 393-395; HabashRiadh W.Y., Bansal Rajeev, et al.Thermaltherapy, Part 1: An introduction to thermal therapy[J].Critical Reviews in Biomedical Engineering.2006,34(6)459-489.) According to tissue culture and clinical experiments, under the heat of 43-44℃ for 30-60 minutes, Tumor tissue will undergo degeneration or even necrosis, while normal tissue cells in the human body will be slightly damaged under such conditions. When the temperature of heat action is raised to 45-48°C, tumor tissue will immediately degenerate and necrosis. [0003] At present, the dom...

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Problems solved by technology

However, the laser irradiation effect of this technology is to directly irradiate the target area through the transparent medium on the laser target head. Due to the high concentration of the laser and the type of laser fiber used is 105 / 125 μm, it is actually on the target area. The formed spot (that is, the effective heat interaction cross-sectional area) is only π×(0.105 / 2) 2 ≈0.0087mm 2 , therefore, this technology has the problem of small laser target area

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