CN2579358Y - Controllable radio frequency cold and heat pole - Google Patents

Abstract

The utility model relates to a probe type controllable radio frequency cold and heat pole for matching a tumor therapy device. The utility model is mainly characterized in that an inner chamber body of a spiky tube type pole rod is provided with a gas expansion pore tube extending to a bare pole at the head and a pair of thermocouples; the inner chamber body of the pole rod is connected with a gas discharge tube. The utility model has the advantages that deep freezing or hot pole heating temperatures can be controlled on line to provide a novel structure which has dual functions of freezing tissues and preventing human body tissues from gasifying and carbonizing during heating to effectively kill cancer cells, that is, integration of gas freezing and radio-frequency heating.

Description

The cold and hot utmost point of controlled radio frequency

This utility model relates to medical apparatus and instruments, is the cold and hot utmost point of the controlled radio frequency of a kind of probe-type.

Tumor is the pathological proliferation of soma and tissue.Tumor has optimum and pernicious branch, and carcinoid organizational structure is similar with normal structure, and growth is slow, and there is peplos the outside, limitation ground propagation does not penetrate peplos, does not invade surrounding tissue, thereby clear with the boundary of surrounding tissue, do not form ulcer, generally do not recur behind the excision; The organizational structure of malignant tumor is different with normal cell, growth is very fast, the no peplos in tumor outside, and surrounding tissue is invaded and destroyed to oncocyte, thereby it is unclear with the surrounding tissue boundary, usually form rotten to the corn, ulcer, and transfer to the organ of partial lymph node and distal part, early operation excision through lymph or blood flow, though there is the part patient to cure, but recurrence is often arranged, and operation is complicated, mostly also needs to make complementary therapy with chemotherapy or radiotherapy.Along with tumor research deeply and development, find that cancerous cell is difficult to survive under the profound hypothermia or the condition of high temperature, cell is destroyed when being organized in the profound hypothermia state and rising to room temperature suddenly; When body temperature reached more than 42 ℃, cancerous cell just may large quantities of death in addition.Therefore, the cold and hot treatment technology of malignant tumor also just becomes the important research object of current treatment of cancer, and has obtained good effect.The existing cold and hot treatment therapy equipment of tumor consists predominantly of the cold and hot utmost point two major parts of lesions position monitoring, positioner and probe-type, and the cold and hot utmost point is thrust the focus portion that human body is accurately positioned, but freezing or heat the temperature that this utmost point makes it to reach kill cancer cell.Heat thermoae method several different methods such as unidirectional current, microwave and radio frequency are arranged.In the prior art commonly used thermoae be that a kind of multiple warhead boundling is thermoae, promptly in a body, be provided with many elastic metallic yarns, when this thermoae thrust body foci portion after, tinsel is opened and to heating.This thermoae main weak point is that power demand is less, and inevitable make the tissue gasification and tie carbon on thermoae head around thermoae, increases thermoae difficulty of pulling out when external, will strengthen wound face at least; On the other hand, because this thermoae bigger electric flux that in therapeutic process, needs to import at short notice, but because the time of thermoae surrounding tissue gasification knot carbon can speed with the increase of thermoae energy, thermoae impedance is increased, thereby stop the input of electric flux, this will reduce the effect of thermotherapy greatly.Take a broad view of and comprise that above-mentioned thermoae existing thermoae subject matter is: existing thermoaely can not control heating-up temperature, causing influences therapeutic effect.The freezing destruction of cancer cells tissue of profound hypothermia is an efficient ways.Hot and cold treatment is each has something to recommend him, and with freezing, the hot and cold cooperation of the need that have is because the two can not have so often influence treatment by the common reed as the rich blood vessel place.This device will successfully be become one with the advantage of the two.

The purpose of this utility model provides the cold and hot utmost point of a kind of controlled radio frequency, makes it to have comparatively simple structure, and can control its freezing or heating-up temperature on demand, to adapt to the various neoplastic lesions of different patients of treatment or human body different parts.

Realize this utility model of above-mentioned purpose, its major technique design is, makes that radio frequency is thermoae to have temperature online and detect and freezing function, with realize freezing or heating-up temperature controlled.In concrete structure, this utility model and a thermoae the same body type electrode stem and the one handle that also consist predominantly of of existing radio frequency, the front end position of body type electrode stem is the head bare electrode of tip, and the rear with the head bare electrode on side face outside this body type electrode stem is covered with an insulating barrier; This body type electrode stem is connected with the radio-frequency power supply control circuit by lead.Main feature of the present utility model is: be provided with a metal tube and an a pair of thermocouple that extends the band gas expansion hole at head bare electrode place in the inner chamber body of body type electrode stem; The inner chamber body of electrode stem links to each other with a bleeder pipe.The utility model of structure like this, heat absorption, venting link to each other with refrigerating plant, to be thrust the body foci position freezing or pass to radio-frequency current when electrode, thermoae intensification, simultaneously, be located at head bare electrode thermocouple nearby the temperature that records is inputed to temperature control equipment, with duty according to range of set temperature control refrigerating plant, and the flow of control gas, make electrode keep the treatment temperature that is fit to.

Because the big or small character of malignant tumor has nothing in common with each other, and controlled smelting freezing or that radio frequency is thermoae is treated and can be applied in a flexible way according to focus, hot and cold complementation, and the maximum function of performance thermotherapy effectively enlarges therapeutic domain.By make energy that electrode sends with the size of trouble tumor adapt, this utility model can place in handle fixes a body type electrode stem, also can place to fix two or three body type electrode stems.Like this, can use single electrode stem to the tumor that scope is less, and the tumor bigger to scope (as hepatocarcinoma) is the electrode of available two or three electrode stems,, therapeutic domain can be arrived or above the edge of tumor to strengthen area for treatment.

Therefore, because this utility model electrode design becomes a kind of freezing controlled two hollow cylinder structures of radio frequency heating that have again that have, be that air inlet pipe is stretched and put in the inner chamber of body type electrode stem, corresponding formation one bleeder pipe of the inner chamber of body type electrode stem (or saying that inner chamber is connected with bleeder pipe) is provided with one again for the thermocouple of measuring temperature in the inner chamber body of body type electrode stem.So major advantage of the present utility model is: refrigerating plant can independent freezing electrode, it is capable of on-line also can to play the thermoae heating-up temperature of cooling electrode when radio frequency heats, can treat by profound hypothermia accurately to provide, prevent tissue gasification, carbonization in the time of also can be, can effectively kill the treatment high temperature of cancerous cell again with radio-frequency (RF) thermotherapeutic.Its structure of model machine of the present utility model is very compact, and the external diameter of body type electrode stem is the 2-5 millimeter only, does not do freezing treatment when cooling system, the external diameter of body type electrode stem 2-3 millimeter only when only making radio frequency heating cooling electrode, so the damage of medical operating is little.This model machine has also been obtained effect preferably clinically.

Description of drawings:

Fig. 1 is a schematic appearance of the present utility model.

Fig. 2 is the vertical cross-sectional schematic in part of the present utility model.

Fig. 3 is that this utility model is to have the embodiment sketch map of three body type electrode stems.

Fig. 4 is the left view of Fig. 3.

Embodiment of the present utility model as shown in drawings.At first see also Fig. 1, seen by Fig. 1, this utility model includes a body type electrode stem 3 and an one handle 4.In the present embodiment, these body type electrode stem 3 usefulness rustless steels or titanium steel material are made, and the front end position is the head bare electrode 1 of tip, are covered with an insulating barrier 2 on the body type electrode stem outer peripheral face at head bare electrode 1 rear.This body type electrode stem 3 is connected with handle 4, and is connected with the radio-frequency power supply control circuit by lead 7.Please consult Fig. 2 simultaneously, see, in the inner chamber body 9 of body type electrode stem 3, be provided with air inlet (liquid) pipe 6 and a nozzle 10 and a thermocouple 8 that extends head bare electrode 1 place by Fig. 2.In the present embodiment, be associated with an escape pipe 5 by the tail end of body type electrode stem 3, the inner chamber body 9 that makes electrode stem and escape pipe 5 be common to constitute outlet passageways.The other end of inlet, outlet (liquid) pipe 6,5 links to each other with external cold gas system.

Fig. 3, one of this utility model shown in Figure 4 have the enforcement illustration of three body type electrode stems to be seen, evenly place in handle 4 and be fixed with three body type electrode stems 11,12,13, all embodiment is identical as shown in Figure 1 and Figure 2 for the structure of each root electrode stem 11,12,13.

Claims (2)

1. a confession is disposed at the cold and hot utmost point of controlled radio frequency of therapeutic apparatus for treating tumor, include a body type electrode stem and an one handle, the leading section of body type electrode stem is the head bare electrode that is tip, is covered with an insulating barrier with head bare electrode rear on side face outside this back of the body build electrode stem; This body type electrode stem places to be fixed in the handle and by lead and is connected with the radio-frequency power supply control circuit, it is characterized in that: be provided with a metal tube and an a pair of thermocouple that extends the band gas expansion micropore at head bare electrode place in the inner chamber body of body type electrode stem, the inner chamber body of electrode stem is connected with a bleeder pipe.

2. according to the cold and hot utmost point of the described controlled radio frequency of claim 1, it is characterized in that: in handle, can place and fix a body type electrode stem, also can place and fix two or three body type electrode stems.

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