CN109394340A

CN109394340A - A kind of high performance water cooling microwave melt needle with microwave power control switch

Info

Publication number: CN109394340A
Application number: CN201811258042.XA
Authority: CN
Inventors: 吴泽宇; 杨兴瑞
Original assignee: Guangdong Baide Medical Co Ltd
Current assignee: Guangdong Baide Medical Co Ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2019-03-01

Abstract

The invention discloses a high-performance water-cooled microwave ablation needle with a microwave power control switch. The field source structure also includes a micro switch and a two-color light-emitting diode in a shape on the operating handle, which is connected with the microwave therapy host system through a four-core cable and a four-core connector. The invention can realize the consistency and stability of the tumor microwave ablation range, break through the traditional control mode of the main body of the microwave therapy apparatus, realize the coordination and high sensitivity of the control of the microwave interventional therapy system, and improve the accuracy of the tumor microwave ablation therapy. and intelligent, providing good hardware conditions.

Description

A kind of high performance water cooling microwave melt needle with microwave power control switch

Technical field

The present invention relates to a kind of high performance water cooling microwave melt needles with microwave power control switch, are suitable for shallow, The minimally invasive ablation of entity tumor of such as thyroid gland, mammary gland internal organs, it can also be used to which the internal organs entity such as chest, abdomen and orthopaedics is swollen The minimally invasive ablation of tumor, belongs to medical microwave technical applications.

Background technique

With the fast development of high and new technology and Modern Imaging Technique, the tumor microwave ablation techniques of percutaneous puncture are extensive Minimally-invasive treatment applied to clinically various entity tumors.

On clinical medicine, the physiological structure and tissue signature of each internal organs of human body and entity tumor are sufficiently complex, form It is different, the scale of construction is different.In the case where holding proper therapeutic strategy, performed the operation by the exquisiteness of clinician, tumor microwave ablation is minimally invasive Treatment achieves rapid progress, and increasingly safely and effectively, treatment is further accurate, and then realizes minimum recurrence rate, reaches radical cure tumour Purpose, while reducing postoperative complications, promote postoperative quick recovery, become medical expert, clinician and microwave thus The direction of instrument development person's unremitting effort.

Wherein, the lesions such as the tumours such as thyroid gland, mammary gland and tubercle, mostly shallow, multidigit and the scale of construction are lesser Feature, to the clinical treatment of such entity tumor, doctor is often the microwave output energy setting of microwave therapy apparatus (host) In, low-grade power, after microwave melt needle gets involved in lesion, clinician is by according to the scale of construction and form of lesion, often Can be by the way of the intermittent output of host microwave power, i.e., what the control host microwave power of high frequency time exported opens/stops, with this Meanwhile clinician can also synchronize using gimmicks such as the forward and back displacements of microwave melt needle, implement the operation of tumor microwave ablation.

However, the microwave power of existing microwave therapy apparatus system exports, traditional preoperative setting microwave function is carried over always The output valve of rate and by floor push come control the output of host microwave power in the way of, it is clear that be not suitable with above-mentioned clinical swollen The treatment general plan of tumor microwave ablation and skillful orderly surgical procedure are not able to satisfy the precision of tumor micro-wound treatment especially further With the manipulation harmony for the treatment of system and the requirement of sensitivity.

Summary of the invention

Key technology solved by the invention is to overcome the drawbacks described above and deficiency of existing product, proposes a kind of band microwave The high performance water cooling microwave melt needle of power control switching.

Technical scheme is as follows:

Including handle and the micro- of handle outer is arranged in a kind of high performance water cooling microwave melt needle with microwave power control switch Wave antenna structure, wherein handle includes sequentially connected handle cap, handle body and handle set；Microwave antenna structure includes radiation electric Pole, medium tube, semi-rigid coaxial cable and shank, wherein the inner conductor of semi-rigid coaxial cable one end is packed into the blind of radiation electrode tail portion In hole, medium tube is sleeved on radiation electrode tail portion, and microwave antenna structure further includes metal outer bush, and metal outer bush is same along semi-rigid Shaft cable is inserted in and encapsulation is in the shoulder outer circle of medium tube tail portion, and the axle center hole of metal outer bush is sleeved on semi-rigid coaxial cable On outer conductor；One end of shank is sleeved in the tail portion shoulder outer circle of metal outer bush, and between shank and semi-rigid coaxial cable Form gap；Inner conduit one end is protruded into the gap, and there is gap between shank and semi-rigid coaxial cable；Semi-rigid is same The other end of shaft cable, shank and inner conduit is passed through inside handle body from handle cap end；Inside handle body, semi-rigid coaxial electrical The inner conductor of cable is correspondingly connected with the inner conductor of radio-frequency joint and outer conductor respectively with outer conductor, and water jacket one end is socketed on interior water Guan Shang, the other end are fixed with radio-frequency joint, and water inlet tap is connected to water jacket, and shank covers one end and is socketed on shank, the other end with Water jacket is fixed, and faucet is connected to shank set, and radio-frequency joint is set on handle set.

Further, the high performance water cooling microwave melt needle with microwave power control switch, the handle also wrap Two handle semi-circular tubes are included, a square groove is offered in each handle semi-circular tube, wherein in the square groove of a handle semi-circular tube Microswitch is inside installed, microswitch key protrudes from the cone-shaped groove of handle outer surface, another handle semi-circular tube Dichromatic LED is installed, dichromatic LED top exposes to the cone-shaped groove of handle outer surface in square groove；Two The contraposition of handle semi-circular tube closes up rear side and is linked and packed with handle cap, and the other side is linked and packed with handle body.

Further, the high performance water cooling microwave melt needle with microwave power control switch, the metal are led outside The axle center hole of set is sleeved on the outer conductor of semi-rigid coaxial cable and is welded and fixed and is integrated；One end of the shank is sleeved on gold Belong in the tail portion shoulder outer circle of outer bush and is welded as a whole.

Further, the high performance water cooling microwave melt needle with microwave power control switch, the radiation electrode For metal T shape cylindrical body, front is cone or multiple edge body shape, and sharp with enough Direct perforantes biological tissues Degree.

Further, the materials such as copper or stainless steel can be used in the radiation electrode.

Further, the high performance water cooling microwave melt needle with microwave power control switch, medium tube tail portion platform Annular groove is provided in shoulder outer circle；The metal outer bush is stairstepping tubular cylinder, in metal outer bush encapsulation Jie Yu After matter pipe shoulder outer circle, using riveting to the metal outer bush outer circle position for being located at medium tube outer circle annular groove, to realize that This being fastenedly connected without axial displacement.

Further, the materials such as special engineering plastics or the electronic ceramics at low tangent loss angle can be used in medium tube；Gold Belonging to outer bush can be used copper or stainless steel material.

Further, the high performance water cooling microwave melt needle with microwave power control switch, microswitch and double Color light emitting diode is connect by route with external work system.

Further, the high performance water cooling microwave melt needle with microwave power control switch, the dual color light emitting Diode red, green dichromatic LED for "-" type LED.

The high performance water cooling microwave melt needle of microwave power control switch provided by the invention, the front end dress of metal outer bush Cover in the shoulder outside cylinder of medium tube tail portion, axle center hole encapsulation on the outer conductor of semi-rigid coaxial cable and be welded and fixed for One is constituted the shape of microwave melt needle front end and the field source knot of size electromagenetic wave radiation (microwave antenna) with high accuracy with this Structure, while the front end encapsulation of shank in the shoulder outer circle of metal outer bush tail portion and is welded as a whole, and is constituted microwave ablation with this The seal water structure of needle front end air-tightness, is beneficial to the heat exchange to this Water-cooling circulating, helps to solve because before high thermally-induced needle body The problem of end radiation electrode falls off.

Outstanding feature of the invention also resides in, and microswitch and dual color light emitting are equipped in the operation handle of microwave melt needle Diode shows its operating status with starting/stopping of highly sensitive control host microwave power output and in time, control Signal and display signal can pass through quad (line) He Sixin socket and microwave therapy apparatus (host) system connectivity.

A further improvement of the present invention lies in that:

1, needle body tail portion, comprising: shank set, water jacket, radio-frequency joint and nozzle and spout etc. are welded using assembly group, micro- to constitute The one-way circulation system of cooling water flow in wave needle body, including to the good cold of its semi-rigid coaxial cable and radio-frequency joint position But.

2, handle of the invention is made of handle cap, handle semi-circular tube, handle body and handle set, and adhesive bond can be used Combination, to be easy to the whole assembly of microwave needle.

3, in the present invention, the inner conduit is set between shank and the gap of semi-rigid coaxial cable, to be formed as inner conduit Intake tunnel between inner wall and semi-rigid coaxial cable, the backwater channel between inner conduit outer wall and shank inner wall, so that water cooling The water flow of one-way circulation is directly injected into the front end of microwave needle, realizes to microwave needle high fever front end and semi-rigid coaxial cable, needle The best cooling effect of bar.

The distinctive feature of high performance water cooling microwave melt needle provided by the invention with microwave power control switch also resides in: The metal outer bush of the microwave melt needle front end, due to the high unity of its planform and machining accuracy, and together with semi-rigid The group of coaxial cable and shank is welding as one, to improve the steady of the field source structure of microwave melt needle radiated electromagnetic wave (antenna) Qualitative, high efficiency and reliability, while so that its front end is obtained optimal cooling effect with this, to further increase tumour ablation The precision for the treatment of.

High performance water cooling microwave melt needle provided by the invention with microwave power control switch, the operation handle are equipped with height Sensitive microswitch and dichromatic LED can allow doctor according to the situation of clinical treatment, can active at any time and coordination The working procedure of consistent manipulation micro-wave therapeutic (host) system simultaneously shows its state in time, to breach existing micro-wave therapeutic The traditional mode of the system manipulation and treatment operation of host.

The needle body tail structure of high performance water cooling microwave melt needle provided by the invention with microwave power control switch, greatly The water cooling effect of existing staight shank microwave needle has been improved greatly, is beneficial to the steady of microwave transmission in tumor microwave therapeutic process It is qualitative.

Detailed description of the invention

The present invention will be further described below with reference to the drawings.

Fig. 1 is the high performance water cooling microwave melt needle microwave described in the embodiment of the present invention 1 with microwave power control switch Antenna structure view；

Fig. 2 is the high performance water cooling microwave melt needle handle arrangement described in the embodiment of the present invention 1 with microwave power control switch Schematic diagram；

Fig. 3 is the high performance water cooling microwave melt needle handle arrangement described in the embodiment of the present invention 2 with microwave power control switch Schematic diagram；

Fig. 4 is the high performance water cooling microwave melt needle handle tail described in the embodiment of the present invention 2 with microwave power control switch Structural schematic diagram；

Fig. 5 is the high performance water cooling microwave melt needle structural representation described in the embodiment of the present invention 2 with microwave power control switch Figure；

Label in figure 1 above -4 is schematically as follows: 1- radiation electrode, 2- medium tube, 3- semi-rigid coaxial cable, leads outside 4- metal Set, 5- shank, 6- inner conduit, 7- handle cap, 8- handle semi-circular tube, 9- handle body, 10- shank set, 11- faucet, 12- water inlet Mouth, 13- water jacket, 14- radio-frequency joint, tetra- core socket of 15-, 16- quad, 17- handle set, 18- microswitch, 19- are bis- Color light emitting diode.

Specific embodiment

Below in conjunction with attached drawing to the high performance water cooling microwave melt needle provided by the invention with microwave power control switch into Row further illustrates.

Embodiment 1

The present embodiment provides a kind of high performance water cooling microwave melt needles with microwave power control switch, and wherein ablation needle includes hand Handle and the microwave antenna structure that handle outer is arranged in, microwave antenna structure schematic diagram is as shown in Figure 1, including radiation electrode 1, being situated between Matter pipe 2, semi-rigid coaxial cable 3 and shank 5, wherein the inner conductor of 3 one end of semi-rigid coaxial cable is packed into the blind of 1 tail portion of radiation electrode In hole, medium tube 2 is sleeved on 1 tail portion of radiation electrode, wherein further including metal outer bush 4, metal outer bush 4 is along semi-rigid coaxial electrical Cable 3 is inserted in and encapsulation is in 2 tail portion shoulder outer circle of medium tube, and the axle center hole of metal outer bush 4 is sleeved on semi-rigid coaxial cable 3 On outer conductor；One end of shank 5 is sleeved in the tail portion shoulder outer circle of metal outer bush 4, and shank 5 and semi-rigid coaxial cable 3 Between form gap；One end of inner conduit 6 is protruded into the gap, and there is sky between shank 5 and semi-rigid coaxial cable 3 Gap.The radiation electrode 1 is metal T shape cylindrical body, and front is cone or multiple edge body shape, and has enough Direct perforantes The sharpness of biological tissue.Handle arrangement schematic diagram is as shown in Fig. 2, handle includes sequentially connected handle cap 7,9 and of handle body Handle set 17；Wherein the other end of the above semi-rigid coaxial cable 3, shank 5 and inner conduit 6 is passed through handle body 9 from handle cap end It is internal；Inside handle body 9, the inner conductor of semi-rigid coaxial cable 3 and outer conductor are respectively with the inner conductor of radio-frequency joint 14 and outside Conductor is correspondingly connected with, and 13 one end of water jacket is socketed on inner conduit 6, and the other end and radio-frequency joint 14 are fixed, water inlet tap 12 with into Water jacket 13 is connected to, and shank covers 10 one end and is socketed on shank 5, and the other end and water jacket 13 are fixed, faucet 11 and shank set 10 Connection, radio-frequency joint 14 are set on handle set.

Further, annular groove is provided in 2 tail portion shoulder outer circle of medium tube, metal outer bush 4 is stairstepping tubulose Cylindrical body, in 4 encapsulation of metal outer bush after 2 shoulder outer circle of medium tube, using riveting to positioned at 2 outer circle annular groove of medium tube 4 outer circle position of metal outer bush, to realize being fastenedly connected for mutual no axial displacement.

High performance water cooling microwave melt needle provided in this embodiment, during the work time, the water entered from water inlet tap 12 are first It is introduced into water jacket 13, inner conduit 6 is then entered in water jacket 13, and along 6 inner wall of inner conduit and semi-rigid coaxial cable 3 Between gap reach the front end of ablation needle microwave antenna structure, then flowed back by gap between 6 outer wall of inner conduit and shank 5 10 are covered to shank, and is flowed out from faucet 11, unidirectional Water-cooling circulating is formd, has reached good cooling effect.

Embodiment 2

The present embodiment is further improvement on that basis of example 1, as shown in figure 3, wherein handle further includes two handles half Round tube 8 offers a square groove in each handle semi-circular tube 8, wherein being equipped with fine motion in the square groove of a handle semi-circular tube Switch 18,18 key of microswitch protrude from the cone-shaped groove of handle outer surface, peace in the square groove of another handle semi-circular tube Dichromatic LED 19 is filled, 19 top of dichromatic LED exposes to the cone-shaped groove of handle outer surface；Two handles The contraposition of semi-circular tube 8 closes up rear side and is linked and packed with handle cap 7, and the other side is linked and packed with handle body 9.It is welded with four core sockets 15 The quad 16 connected passes through the corresponding aperture of 17 tail end of handle set, respectively with microswitch 18 and dichromatic LED 19 Each wiring pin connection.

As shown in figure 4, being handle tail structural schematic diagram, it can be seen that water inlet tap 12, faucet 11 pass through water inlet respectively Pipe with outlet pipe and be pierced by handle set 17 respectively with quad 16, radio-frequency joint is set on handle set 17.

As shown in figure 5, being high performance water cooling microwave melt needle structural representation of the present embodiment with microwave power control switch Figure.

Embodiment 3

The dress for the high performance water cooling microwave melt needle with microwave power control switch that the present embodiment provides above embodiments 2 It is illustrated with process, detailed process is as follows:

1, microwave antenna structure assembling process is as follows:

(1) inner conductor of semi-rigid coaxial cable 3 is packed into the blind hole of 1 tail portion cylindrical body of radiation electrode, then using welding and auxiliary It is fixed with getting riveting ready；

(2) by 2 encapsulation of medium tube on 1 tail portion shoulder cylindrical body of radiation electrode, mating surface can be coated with bonding agent and fix；

(3) metal outer bush 4 is inserted in along half steel coaxial cable 3 and is assembled in the shoulder outer circle of medium tube 2, and with multiple spot machine Tool forces riveting and is aided with bonding agent and fixes；In addition, cooperating in the outer conductor of 4 axle center hole of metal outer bush and semi-rigid coaxial cable 3 End, give air-tightness and be welded and fixed；

(4) 5 front end encapsulation of shank is given air-tightness and be welded and fixed in 4 tail portion shoulder outer circle of metal outer bush；

(5) by inner conduit 6(length size as required) it penetrates between semi-rigid coaxial cable 3 and the gap of shank 5；

More than, complete the assembly of the present embodiment microwave antenna structure.

2, handle inner Standard process, specific as follows:

(1) water inlet tap 12 is installed in the corresponding aperture in 13 outer circle of water jacket, is welded into " water inlet component " and by faucet 11 are installed in the corresponding aperture that shank covers in 10 outer circles, are welded into " outlet component "；

(2) " water inlet component " water jacket 13 is placed on inner conduit 6, then, then by the inner and outer conductor of semi-rigid coaxial cable 3 Firm welding is corresponded with the inner and outer conductor of radio-frequency joint 14 respectively, and carries out waterproof welding by structure；

(3) 13 tail portion of water jacket contraposition encapsulation is subjected to air-tightness welding, hereafter to water jacket 13 in the front end of radio-frequency joint 14 The contact site of inner hole and 6 surface of inner water sleeve carries out air-tightness and is welded and fixed；

(4) shank is covered into 10 one end contraposition encapsulation on the front end half the circumference of the sleeve where it joins the shoulder of water jacket 13, gives air-tightness and be welded and fixed, then will Shank covers 10 other ends and is sleeved on shank 5, the contact site of inner hole and 5 surface of shank, carries out air-tightness and is welded and fixed；

More than, complete the assembly and welding of the present embodiment needle body one integral piece part.Hereafter, can according to national standard GB9706.1, The related technical requirements such as GB9706.6 and professional standard YY0838, YY0899 carry out close inspection to the present embodiment needle body one integral piece, Eligible goes successively to following assemble flow.

3, handle main body Standard process is as follows:

(1) microswitch 18 is installed and is adhered in 8 square groove of handle semi-circular tube, by dichromatic LED 19 and is being adhered to In another 8 square groove of handle semi-circular tube, with to be assembled；

(2) 14 tail end shoulder outer circle of radio-frequency joint is coated with bonding agent, is then charged into the centre bore of handle set 17；

(3) corresponding aperture that inlet tube and outlet tube passes through 17 tail end of handle set encapsulation and is fixed on water inlet tap 12 and faucet 11 respectively On；

(4) by handle body 9 in the front end outer circle that the present embodiment needle body one integral piece front end sleeve is mounted in handle set 17, and it is coated with bonding agent It is fixed；

(5) by the quad 16 being welded with four core sockets 15 pass through 17 tail end of handle set corresponding aperture, respectively with it is micro- Each wiring pin of dynamic switch 18 and dichromatic LED 19 firm welding one by one, then, by two handle semi-circular tube 8(together with Microswitch 18 and dichromatic LED 19) after contraposition closes up, it is coated with bonding agent, is reloaded into the front end inner hole of shank body 9 solid It is fixed；

(6) by 7 uropore encapsulation of handle cap in the half the circumference of the sleeve where it joins the shoulder outer circle of the two handle semi-circular tubes 8 closed up, bonding is coated in matching surface Agent.

More than, it is fully completed the assembling process of water-cooled microwave ablation needle of the present embodiment with microwave power control switch, this GB2828 sampling can be performed afterwards, test by product technology requirement project.

In the present embodiment, the welding technique recommendation of the use: selecting lead-free soldering wire and using constant temperature electric iron or adopts With semi-automatic welding, with enough weld strengths and good conductive, heating conduction, and air-tightness is required to get well, nothing Rosin joint, it is water-tight or impermeable phenomena such as.

In the present embodiment, the high temperature adhesive is recommended: selecting epoxide-resin glue, has dielectric constant low, and is bonded strong Degree is high and high temperature resistance is good, moisture-proof, waterproof etc..

In terms of the test result of the present embodiment sample needle, characterisitic parameter and technical performance are very stable.From the present embodiment sample needle Pork liver ex vivo experimental result see that range (thermal field) consistency of microwave ablation stove is good.It is loaded by microwave to Pork liver ex vivo Experimentation prove, starting/stopping coordination of the microwave power of the present embodiment manual manipulation micro-wave therapeutic host output It is errorless, and system program reflection and status display it is timely errorless.

Again show that through this embodiment, the present invention be a kind of clinical tumor microwave ablation range (thermal field) stability it is good, Efficiency is high, more tends to the microwave ablation surgical instrument of precision.Meanwhile a kind of band microwave power control switch provided by the invention High performance water cooling microwave melt needle, breach it is existing set microwave power output valve in the preoperative, recycle floor push to control The traditional approach of host microwave power output processed, what the precision and treatment system for sufficiently meeting clinical tumor minimally-invasive treatment manipulated Harmony and highly sensitive requirement, have also established good hardware foundation for the intelligence of Microwave Coagulation Therapy.

In addition to the implementation, microswitch and dichromatic LED can also be designed on bend handle type microwave needle, may be used also To there is other embodiments.It is all using equivalent substitution or equivalent transformation formed technical solution, all fall within the present invention claims Protection scope.

Claims

1. A high-performance water-cooled microwave ablation needle with a microwave power control switch, comprising a handle and a microwave antenna structure disposed outside the handle, wherein the handle comprises a handle cap, a handle body and a handle base connected in sequence; the microwave antenna structure includes a radiating electrode , a dielectric tube, a semi-rigid coaxial cable and a needle rod, wherein the inner conductor of one end of the semi-rigid coaxial cable is installed in the blind hole at the tail of the radiation electrode, and the dielectric tube is sleeved at the tail of the radiation electrode. It is characterized in that the microwave antenna structure also includes Metal outer guide sleeve, the metal outer guide sleeve is sleeved along the semi-rigid coaxial cable and sleeved on the outer circle of the shoulder at the end of the dielectric tube, and the axial hole of the metal outer guide sleeve is sleeved on the outer conductor of the semi-rigid coaxial cable; One end of the needle bar is sleeved on the outer circle of the tail shoulder of the metal outer guide sleeve, and a gap is formed between the needle bar and the semi-rigid coaxial cable; There are gaps between the coaxial cables; the other ends of the semi-rigid coaxial cable, the needle rod and the inner water pipe all pass into the handle body from the handle cap end; inside the handle body, the inner conductor and outer conductor of the semi-rigid coaxial cable It is respectively connected with the inner conductor and the outer conductor of the radio frequency connector, one end of the water inlet sleeve is sleeved on the inner water pipe, the other end is fixed with the radio frequency connector, the water inlet nozzle is connected with the water inlet sleeve, and one end of the needle bar sleeve is sleeved on the needle bar , the other end is fixed with the water inlet sleeve, the water outlet nozzle is communicated with the needle bar sleeve, and the radio frequency connector is arranged on the handle seat.

2 . The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 1 , wherein the handle further comprises two handle semicircular tubes, each of which is provided with a square groove, wherein A micro switch is installed in the square groove of the semi-circular tube of one handle, and the button of the micro-switch protrudes from the conical groove on the outer surface of the handle; the square groove of the other semi-circular tube of the handle is installed with a two-color light-emitting diode, and the top of the two-color light-emitting diode is exposed. A conical groove on the outer surface of the handle; after the two handle semicircular tubes are aligned and closed, one side is connected and assembled with the handle cap, and the other side is connected and assembled with the handle body.

3 . The high-performance water-cooled microwave ablation needle with microwave power control switch according to claim 1 , wherein the axial hole of the metal outer guide sleeve is sleeved on the outer conductor of the semi-rigid coaxial cable and fixed by welding. 4 . One end of the needle bar is sleeved on the outer circle of the rear shoulder of the metal outer guide sleeve and welded as a whole.

4. The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 1, wherein the radiation electrode is a metal T-shaped cylinder, the front part is a cone or a polygonal shape, and has Sufficient sharpness for direct puncture of biological tissue.

5 . The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 1 , wherein an annular groove is provided on the outer circle of the shoulder at the tail of the medium tube. 6 .

6 . The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 1 , wherein the metal outer guide sleeve is a stepped tubular cylinder, and the metal outer guide sleeve is sleeved on the outer circle of the shoulder of the medium tube. 7 . Afterwards, riveting is used to align the outer circumference of the metal outer guide sleeve located in the outer circular groove of the medium tube to achieve a fast connection without axial displacement.

7 . The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 2 , wherein the microswitch and the two-color light-emitting diode are connected to an external working system through lines. 8 .

8 . The high-performance water-cooled microwave ablation needle with a microwave power control switch according to claim 2 , wherein the two-color light-emitting diodes are in-line LED red and green two-color light-emitting diodes. 9 .