CN2101501U

CN2101501U - 2450 mhz microwave aerial for heating therapy

Info

Publication number: CN2101501U
Application number: CN 91215783
Authority: CN
Inventors: 谢企良; 陈夷; 钱松溪
Original assignee: Shanghai Changhai Hospital
Current assignee: Shanghai Changhai Hospital
Priority date: 1991-08-09
Filing date: 1991-08-09
Publication date: 1992-04-15

Abstract

The utility model relates to a medical microwave device which is a novel 2450 MHZ microwave aerial for heating therapy, which is composed of a standard cable joint 1, a standard coaxial line 2, a spiral tube 8 and a sheath 9. Since both ends of the spiral tube are welded on a welding point 10 of an inner conductor 7 with the coaxial line and a welding point 6 of an outer conductor 4 respectively, the utility model has uniform heated graphics, landmarks are remarkable, and normal tissues are easy to protect. The 2450 MHZ microwave aerial for heating therapy is suitable for treating malignant tumors when heated to 42 to 45 DEG C, stanching blood at one time and coagulating abnormal tissue hyperplasia when heated above 60 DEG C. The utility model has the advantages of simple use and easy processing, and can achieve a remarkable therapeutic effect by matching with the existing 2450 MHZ microwave treating device.

Description

2450 MHZ microwave aerial for heating therapy

This utility model relates to the medical microwave device, is a kind of novel warming therapeutic 2450MHz microwave antenna.

Pathological changes, hemangioma etc. are a kind of effective naturopathy methods between the microwave hyperthermia treated tissue and in intracavity lesion such as tumor, prostate hyperplasia, the uterine cavity.Nineteen eighty-two Taylor initiative micro-wave therapeutic enters direct radiation therapy in the tissue with 2450MHz needle-like antenna.Toru Saton in 1988 reported that a kind of inner wire that adopts was used for same purpose around the antenna that increases thick formation, figure is spindle but this type of antenna is heated, exist the inhomogeneous and coaxial line terminal temperature nearly antenna root of the latter of the figure of heating to concentrate easily to cause the tissue injury and the figure of heating not to have obviously and demarcate, can't correctly grasp the shortcoming of position in the treatment.

It is even that the purpose of this utility model provides a kind of thermal map shape, demarcate clear and definite and the little warming therapeutic of microwave leakage 2450MHz microwave antenna.

Task of the present utility model realizes as follows: it is one section coaxial line (hard or soft coaxial line) that is connected on the standard coaxial cable plug.Connect to form antenna with the spiral type becate between the terminal outer conductor of coaxial line and the inner wire.

Accompanying drawing is a warming therapeutic 2450MHz microwave antenna sketch map

In conjunction with the accompanying drawings this utility model is further described as follows:

This utility model comprises coaxial fitting 1 coaxial line 2, serpentine pipe 8 and sheath 9.Coaxial line is hard coaxial line or soft coaxial line.4 is the outer conductor of hard coaxial line, and 5 is the dielectric of hard coaxial line, and 7 is the inner wire of coaxial line, and coaxial line length is between 200～1200mm, and an end of coaxial line connects switchable L16(or L9) the modular connection 1 of the moon (or sun).The other end is peeled off outer conductor and dielectric at distance end points 20～31mm.Serpentine pipe can be silver-plated bare wire, it also can be other lead that has high temperature insulation low consumption coating, the line footpath is with between 0.09～1.8mm, with the coaxial inner conductor is that the center is around 8～16 circles, the serpentine pipe diameter is between 0.5～6mm, two ends are welded in the pad 6 of outer conductor 4 of coaxial line and the pad 10 of inner wire 7 respectively, and weld must be level and smooth.Also can only peel off outer conductor, not peel off dielectric, with diameter less than the silver-plated of coaxial outer conductor body thickness or not silver-plated bare wire uniform pitch on dielectric, two ends are welded on coaxial inner conductor pad 10 and the outer conductor pad 6 equally.Sheath 9 usefulness are high temperature resistant, and low-loss polytetrafluoroethylene material is made, and wall thickness 0.5～1mm is placed in antenna head in order to the protection antenna, make simultaneously antenna when treatment contact tissue can damaged tissue and during at high temperature antenna not with the tissue adhesion.The sheath afterbody seals 3 with silica gel, in case liquid flows into antenna inside in using.

This utility model 42～45 ℃ of treatment malignant tumor that both had been suitable for heating are fit to more than 60 ℃ temperature again and heat and reach disposable hemostasis and solidify unusual hamartoplasia.The for example microwave heating of prostate hyperplasia treatment.Difference according to spiral winding method can obtain the multiple required figure of evenly heating.As the garden cylindricality, sphere, pumpkin-shaped etc., thus reach even, the purpose clear and definite, the protection normal structure of demarcating of the regional heat effect of need heating.

The utility model also has simple in structure being easy to and processes advantage easy to use, cooperates present 2450MHz microwave therapy apparatus can obtain obvious result for the treatment of.

Claims

1, a kind of warming therapeutic 2450MHz microwave antenna comprises cable connector 1, hard or soft coaxial line 2, serpentine pipe 8 and sheath 9.The end that is characterised in that coaxial line of the present utility model is peeled off outer conductor 20～31mm and is exposed inner wire 7, and is with serpentine pipe 8 in the conductor, two ends of serpentine pipe respectively with the pad 10 and 6 welding of the inner wire 7 and the outer conductor 4 of coaxial line.

2, according to the described antenna of claim 1, it is characterized in that the insulating barrier of an end of coaxial line can be peeled off, can not peel off yet.

3,, it is characterized in that serpentine pipe can be silver-plated bare wire or the conductor that has insulating barrier, line footpath 0.09～1.8mm according to claim 1 or 2 described antennas.

4, according to claim 1,2,3 described antennas, it is characterized in that serpentine pipe is that the number of turns that twine in the axle center is 8～16 circles along coaxial inner conductor, diameter is 0.5～6mm.