CN202589655U

CN202589655U - Cold-tip temperature control fissure type microwave ablation radiator

Info

Publication number: CN202589655U
Application number: CN 201220263913
Authority: CN
Inventors: 王建新; 胡文国
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-06
Filing date: 2012-06-06
Publication date: 2012-12-12
Anticipated expiration: 2022-06-06

Abstract

The utility model discloses a cold-tip temperature control fissure type microwave ablation radiator comprising a stainless steel puncture needle, a polytetrafluoroethylene ring, a stainless steel shielding tube, a seal ring, a closed part, a rigid coaxial cable, a cable joint and a microwave input seat, wherein the front end of the stainless steel puncture needle is shaped like a cone; a cylindrical bulge is arranged on the round bottom surface of the back end of the stainless steel puncture needle; the stainless steel puncture needle is connected with the stainless steel shielding tube through the polytetrafluoroethylene ring; and the rigid coaxial cable is located in the stainless steel shielding tube and connected with the microwave input seat through the cable joint; an annular cavity is arranged between the stainless steel shielding tube and the rigid coaxial cable; the seal ring is located in the annular cavity at one port of the stainless steel shielding tube, which is close to the polytetrafluoroethylene ring; and the closed part is located in the annular cavity at the other port of the stainless steel shielding tube. The cold-tip temperature control fissure type microwave ablation radiator disclosed by the utility model is capable of directly puncturing in thyroid tumors less than 2cm, forming a complete spherical solidification area and carrying out thorough ablation treatment on the thyroid tumors.

Description

A kind of cold sharp temperature control fissure type microwave ablation irradiator

Technical field

This utility model relates to a kind of microwave instrument for operation, relates in particular to a kind of irradiator of microwave instrument for operation.

Background technology

Micro-wave therapeutic has been used for many years in international, China, and its curative effect has obtained affirming of world's medical matters circle.When operation with its superior haemostatic effect, advanced action principle, small tissue injury, and be called replace fulgerize, the new technique of freezing, laser.

In the prior art, when adopting microwave radiometer thyroid tumor ablation, can only solidify the thyroid tumor of diameter more than 2 centimetres; And diameter is carried out ablation less than 2 centimetres thyroid tumor, and also not good adoptable method, present radio-frequency electrode, microwave radiometer are when solidifying; When its thermal field diameter is 2 centimetres; The solidification zone that forms is an oblong, and the thermal field diameter is when being 4 centimetres, and the solidification zone of formation is be type sphere still.

Summary of the invention

In order to solve the deficiency that prior art exists, the purpose of this utility model is to provide a kind of cold sharp temperature control fissure type microwave ablation irradiator, can form spherical solidification zone when making thermal field less than 2 centimetres, can carry out ablation completely to thyroid tumor.

In order to accomplish above-mentioned purpose, the cold sharp temperature control fissure type microwave ablation irradiator of this utility model comprises; Rustless steel piercing needle, politef circle, rustless steel shielding pipe, sealing ring, closure member, rigid coaxial cable, cable connector; And microwave input seat, wherein

The front end of said rustless steel piercing needle is conical, and the cylindrical protrusions that is inserted in the said politef circle is arranged on the rounded bottom surface in its back-end;

Said rustless steel piercing needle is connected with said rustless steel shielding pipe through said politef circle, and said rigid coaxial cable is arranged in said rustless steel shielding pipe, and is connected with said microwave input seat through said cable connector;

Be formed with annular cavity between said rustless steel shielding pipe and the said rigid coaxial cable;

Said sealing ring is arranged in the annular cavity near the said rustless steel shielding pipe port of said politef circle;

Said closure member is arranged in the annular cavity of said rustless steel shielding pipe other port.

Wherein, the naked core line of said rigid coaxial cable one end, and between the cylindrical protrusions of said rustless steel piercing needle, formation is electrically connected.

Wherein, said cold sharp temperature control fissure type microwave ablation irradiator also comprises: water inlet pipe, return pipe, admitting pipe joint and returning pipe joint,

Said water inlet pipe and said return pipe place the ring-like inner chamber between said rustless steel shielding pipe and the said rigid coaxial cable; The rear end of said water inlet pipe is passed said sealing member and is connected with said admitting pipe joint, and the rear end of said return pipe is passed said sealing member and is connected with said returning pipe joint.

Wherein, said cold sharp temperature control fissure type microwave ablation irradiator also comprises temperature-sensitive element, temperature-sensitive element shielded-plate tube, and the thermometric joint;

One end of said temperature-sensitive element shielded-plate tube connects said thermometric joint, and the ring-like inner chamber that its other end passes between said rustless steel shielding pipe and the said rigid coaxial cable extends to the temperature-sensitive element that is positioned at said sealing ring.

Further feature of this utility model and advantage will be set forth in description subsequently, and, partly from description, become obvious, perhaps understand through implementing this utility model.

Description of drawings

Accompanying drawing is used to provide the further understanding to this utility model, and constitutes the part of description, and with the embodiment of this utility model, be used to explain this utility model together, do not constitute restriction to this utility model.In the accompanying drawings:

Fig. 1 is the cold sharp temperature control fissure type microwave ablation radiator structure sketch map according to this utility model.

The specific embodiment

Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains this utility model, and be not used in qualification this utility model this utility model.

Fig. 1 is the cold sharp temperature control fissure type microwave ablation radiator structure sketch map according to this utility model, and is as shown in Figure 1, and for ease of explanation, the left side is a front end among the figure, and the right is the rear end.The cold sharp temperature control fissure type microwave ablation irradiator of this utility model; Comprise rustless steel piercing needle 1, politef circle 2, sealing ring 3, rustless steel shielding pipe 4, water inlet pipe 5, return pipe 6, sealing member 7, admitting pipe joint 8, returning pipe joint 9, temperature-sensitive element 10, temperature-sensitive element shielded-plate tube 11, cable connector 12, microwave input seat 13, thermometric joint 14, and rigid coaxial cable 15.

Rustless steel piercing needle 1, its front end are conical, and a cylindrical protrusions is arranged on the rounded bottom surface in its back-end, and this cylindrical protrusions is inserted in the politef circle 2;

Rustless steel shielding pipe 4, its front end is fixedly connected with rustless steel piercing needle 1 through politef circle 2;

In rustless steel shielding pipe 4, a rigid coaxial cable 15 is arranged; One end of rigid coaxial cable 15 is a naked core line of peelling off crust; This naked core line is inserted in the politef circle 2, and is inserted between the cylindrical protrusions of rustless steel piercing needle 1 of politef circle 2, and formation is electrically connected; The other end of rigid coaxial cable 15 passes sealing member 7, and is connected with microwave input seat 13 through cable connector 12.

In near the rustless steel of politef circle 2 shielding pipe 4 port inner chambers, a sealing ring 3 is arranged, with form between rustless steel shielding pipe 4 and the rigid coaxial cable 15 annular cavity seal, temperature-sensitive element 10 is positioned at the inside of sealing ring 3.

Water inlet pipe 5 and return pipe 6 place the ring-like inner chamber between rustless steel shielding pipe and the rigid coaxial cable 15, and the front end of water inlet pipe 5 is positioned near the sealing ring 3, and its rear end is passed sealing member 7 and is connected with admitting pipe joint 8; The front end of return pipe 6 is positioned at the rear portion of rustless steel shielding pipe 4 near sealing member 7 places, and its rear end is passed sealing member 7 and is connected with returning pipe joint 9.Like this; Between self sealss circle 3 to the sealing member 7; Become waterway by rustless steel shielding pipe 4 with the closed ring inner chamber that rigid coaxial cable 15 forms, cooling water can cool off this cavity through water inlet pipe 5 and return pipe 6 continuously effectively, makes its temperature stabilization about 20 ℃.Because this waterway and rustless steel piercing needle 1 have politef circle 2 to isolate, waterway is very little to the temperature effect of rustless steel piercing needle 1.The temperature of rustless steel piercing needle 1 can accurately be set in 65 1 80 ℃ ± 1 ℃ scope.This utility model has excellent curative through experimental verification.

One end of temperature-sensitive element shielded-plate tube 11 connects temperature-sensitive element 10, and the other end passes rustless steel shielding pipe 4 and is connected with thermometric joint 14 with closed ring inner chamber, the sealing member 7 that rigid coaxial cable 15 forms.

The cold sharp temperature control fissure type microwave ablation irradiator of this utility model adopts the rustless steel piercing needle as the fissure type microwave antenna, can directly puncture to thyroid tumor, and form the solidification zone of complete spheroid; Become waterway in the ring-like inner chamber between shielded-plate tube and rigid coaxial cable, guarantee can not damage normal structure; Through temperature-sensitive element, the temperature of organizing in the time of can accurately monitoring radiation heating, and heating-up temperature controlled reaches the purpose that constant temperature physical therapy, constant temperature are solidified.

One of ordinary skill in the art will appreciate that: the above is merely the preferred embodiment of this utility model; Be not limited to this utility model; Although this utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme of aforementioned each embodiment record, perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of this utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of this utility model.

Claims

1. a cold sharp temperature control fissure type microwave ablation irradiator comprises, rustless steel piercing needle, politef circle, rustless steel shielding pipe, sealing ring, closure member, rigid coaxial cable, cable connector, and microwave input seat is characterized in that,

2. cold sharp temperature control fissure type microwave ablation irradiator according to claim 1 is characterized in that, the naked core line of said rigid coaxial cable one end, and keep certain slit between the cylindrical protrusions of said rustless steel piercing needle, formation is of coupled connections.

3. cold sharp temperature control fissure type microwave ablation irradiator according to claim 2 is characterized in that,

Said cold sharp temperature control fissure type microwave ablation irradiator also comprises: water inlet pipe, return pipe, admitting pipe joint and returning pipe joint,

4. according to each described cold sharp temperature control fissure type microwave ablation irradiator of claim 1-3, it is characterized in that said cold sharp temperature control fissure type microwave ablation irradiator also comprises temperature-sensitive element, temperature-sensitive element shielded-plate tube, and the thermometric joint;