Boiling-water injection type probe-needle type thermal therapeutic instrument for local tumor treatment

Abstract

The boiling water injection probe type heat therapeutic apparatus for heat therapy of local tumor comprises needle and needle tube. Said needle comprises external shell, T-shaped internal shell with central blind hole inner cavity and piston push-injectiar bar which is mounted and tightly slided in the central blind hole iner cavity, the rear end of the external shell is fixedly welded on the lower end surface of rear portion flange of T-shaped internal shell, and the cylinderical front portion of T-shaped internal shell is concentrically positioned in the cylindrical external shell, and between the internal shell and external shell there is a vacuum chamber; the needle tube is fixed welded in the front end of the needle, and its needle head is formed from external tube, internal tube and welded component fixed in front end of needle head.

Description

technical field [0001] The invention relates to a hyperthermia device for local tumor hyperthermia, in particular to a thermotherapy instrument for local tumor hyperthermia that can inject high-temperature boiling water or high-temperature saline into the tumor site to be treated without thermal damage and insertion damage to healthy tissues along the way. The boiling water injection type micro-probe type hyperthermia device. Background technique [0002] Hyperthermia hyperthermia is another important tumor treatment method after radiotherapy and chemotherapy. The local, regional deep, limb and whole body hyperthermia methods using various energies such as microwave, radio frequency, ultrasound, light, etc. have been developed, but there is no general tumor that is suitable for all parts of the human body. The heat therapy machine appears. Generally, different heaters should be used for different parts of the human body to achieve a more satis...

AI Technical Summary

Problems solved by technology

Although various hyperthermia machines for superficial, intracavitary, and interstitial tumors have been developed, it is often difficult to achieve a satisfactory level of deep or regional heating.

Some typical hyperthermia methods have such and other deficiencies, such as commonly used microwave hyperthermia instruments, due to the interference of electromagnetic fields, the temperature measurement requirements must be increased (the temperature measurement needs to be free of interference), and protective devices must be used; while other methods such as radio frequency heating Therapy instrument, ultrasonic heat therapy instrument, etc., because there is no cold water cooling facility, it is easy to cause overheating pain, which often causes the healthy tissue to be scalded when the tumor to be treated has no killing effect

In particular, one of the common features of these devices is that the structure is complex and the price is very expensive

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