CN209332258U - A kind of high performance water cooling microwave melt needle with microwave power control switch - Google Patents

Abstract

The utility model discloses a kind of high performance water cooling microwave melt needles with microwave power control switch, it include: penetration type radiation electrode, medium tube, semi-rigid coaxial cable, metal outer bush and shank etc., constitute the field source structure of ideal electromagenetic wave radiation, further include being equipped with microswitch and "-" type dichromatic LED in operation handle, is connect by quad and four core connectors with micro-wave therapeutic host system.The utility model can be realized the consistency and stability of tumor microwave ablation range, traditional control mode to microwave therapy apparatus host is breached simultaneously, realize the harmony and high sensitivity to the manipulation of microwave intervention treatment system, for the precision and intelligence of tumor microwave ablation, good hardware condition is provided.

Description

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

Technical field

The utility model relates to a kind of high performance water cooling microwave melt needles with microwave power control switch, are suitable for superficial Property, such as the minimally invasive ablation of entity tumor of thyroid gland, mammary gland internal organs, it can also be used to the internal organs such as chest, abdomen and orthopaedics are real The minimally invasive ablation of body tumour, 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

The key technology that the utility model is solved is to overcome the drawbacks described above and deficiency of existing product, proposes a kind of band The high performance water cooling microwave melt needle of microwave power control switch.

The technical solution of the utility model is as follows:

A kind of high performance water cooling microwave melt needle with microwave power control switch, including handle and setting are in handle outer Microwave antenna structure, wherein handle includes sequentially connected handle cap, handle body and handle set；Microwave antenna structure includes spoke Radio pole, medium tube, semi-rigid coaxial cable and shank, wherein the inner conductor of semi-rigid coaxial cable one end is packed into radiation electrode tail portion Blind hole in, medium tube is sleeved on radiation electrode tail portion, and microwave antenna structure further includes metal outer bush, and metal outer bush is along half Rigid coaxial 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 electrical On the outer conductor of cable；One end of shank is sleeved in the tail portion shoulder outer circle of metal outer bush, and shank and semi-rigid coaxial cable Between form gap；Inner conduit one end is protruded into the gap, and there is gap between shank and semi-rigid coaxial cable；Half The other end of rigid coaxial cable, shank and inner conduit is passed through inside handle body from handle cap end；Inside handle body, semi-rigid is same The inner conductor of shaft 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 On inner conduit, the other end is fixed with radio-frequency joint, and water inlet tap is connected to water jacket, and shank covers one end and is socketed on shank, another End is fixed with water jacket, 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 utility model, before metal outer bush Hold encapsulation in the shoulder outside cylinder of medium tube tail portion, axle center hole encapsulation is on the outer conductor of semi-rigid coaxial cable and solid to weld It is set to one, shape and the field of size electromagenetic wave radiation (microwave antenna) with high accuracy of microwave melt needle front end is constituted with this Source 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 with this The seal water structure of ablation needle front end air-tightness, is beneficial to the heat exchange to this Water-cooling circulating, helps to solve because of high thermally-induced needle The problem of body front end radiation electrode falls off.

The outstanding feature of the utility model also resides in, and microswitch and double-colored is equipped in the operation handle of microwave melt needle Light emitting diode, the starting/stopping exported with highly sensitive control host microwave power and shows its operating status in time, Control signal and display signal can pass through quad (line) He Sixin socket and microwave therapy apparatus (host) system connectivity.

The utility model further improvement is that

1, needle body tail portion, comprising: shank set, water jacket, radio-frequency joint and nozzle and spout etc. are welded using assembly group, with structure At the one-way circulation system of water flow cooling in microwave needle body, including to the good of its semi-rigid coaxial cable and radio-frequency joint position It is good cooling.

2, the handle of the utility model is made of handle cap, handle semi-circular tube, handle body and handle set, and bonding agent can be used Bonding combination, to be easy to the whole assembly of microwave needle.

3, in the utility model, the inner conduit is set between shank and the gap of semi-rigid coaxial cable, in being formed as Intake tunnel between pipe inner wall and semi-rigid coaxial cable, the backwater channel between inner conduit outer wall and shank inner wall, so that The water flow of water cooling 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 electrical The best cooling effect of cable, shank.

The distinctive feature of high performance water cooling microwave melt needle provided by the utility model with microwave power control switch is also It is: 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 The group of semi-rigid coaxial cable and shank is welding as one, to improve the field source structure of microwave melt needle radiated electromagnetic wave (antenna) Stability, high efficiency and reliability, while so that its front end is obtained optimal cooling effect with this, to further increase tumour The precision of ablation.

High performance water cooling microwave melt needle provided by the utility model with microwave power control switch, the operation handle It is equipped with highly sensitive microswitch and dichromatic LED, doctor can be allowed according to the situation of clinical treatment, can at any time can The working procedure of dynamic and harmonious manipulation micro-wave therapeutic (host) system simultaneously shows its state in time, to breach existing The traditional mode of the system manipulation and treatment operation of micro-wave therapeutic host.

It ties the needle body tail portion of high performance water cooling microwave melt needle provided by the utility model with microwave power control switch Structure substantially improves and improves the water cooling effect of existing staight shank microwave needle, is beneficial to microwave in tumor microwave therapeutic process and passes Defeated stability.

Detailed description of the invention

The utility model will be further described below with reference to the accompanying drawings.

Fig. 1 is the high performance water cooling microwave melt needle described in the utility model embodiment 1 with microwave power control switch Microwave antenna structure schematic diagram；

Fig. 2 is the high performance water cooling microwave melt needle described in the utility model embodiment 1 with microwave power control switch Handle arrangement schematic diagram；

Fig. 3 is the high performance water cooling microwave melt needle described in the utility model embodiment 2 with microwave power control switch Handle arrangement schematic diagram；

Fig. 4 is the high performance water cooling microwave melt needle described in the utility model embodiment 2 with microwave power control switch Handle tail structural schematic diagram；

Fig. 5 is the high performance water cooling microwave melt needle described in the utility model embodiment 2 with microwave power control switch Structural schematic diagram；

Label in figure 1 above -4 is schematically as follows: 1- radiation electrode, 2- medium tube, 3- semi-rigid coaxial cable, outside 4- metal Guide sleeve, 5- shank, 6- inner conduit, 7- handle cap, 8- handle semi-circular tube, 9- handle body, 10- shank set, 11- faucet, 12- into Water nozzle, 13- water jacket, 14- radio-frequency joint, tetra- core socket of 15-, 16- quad, 17- handle set, 18- microswitch, 19- Dichromatic LED.

Specific embodiment

Below in conjunction with attached drawing to the high performance water cooling microwave ablation provided by the utility model with microwave power control switch Needle is further described.

Embodiment 1

The present embodiment provides a kind of high performance water cooling microwave melt needle with microwave power control switch, wherein ablation needle packet Handle and the microwave antenna structure that handle outer is set are included, microwave antenna structure schematic diagram is as shown in Figure 1, include radiation electrode 1, medium tube 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 1 tail portion of radiation electrode Blind hole in, medium tube 2 is sleeved on 1 tail portion of radiation electrode, wherein further including metal outer bush 4, metal outer bush 4 is same along semi-rigid Shaft 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 electrical On the outer conductor of cable 3；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 are coaxial Gap is formed between cable 3；One end of inner conduit 6 is protruded into the gap, and between shank 5 and semi-rigid coaxial cable 3 There are gaps.The radiation electrode 1 is metal T shape cylindrical body, and front is cone or multiple edge body shape, and is had enough straight Connect the sharpness for puncturing biological tissue.Handle arrangement schematic diagram is as shown in Fig. 2, handle includes sequentially connected handle cap 7, handle Body 9 and handle set 17；Wherein the other end of the above semi-rigid coaxial cable 3, shank 5 and inner conduit 6 is passed through hand from handle cap end Inside shank body 9；Inside handle body 9, the inner conductor of semi-rigid coaxial cable 3 and the outer conductor inner conductor with radio-frequency joint 14 respectively It is correspondingly connected with outer conductor, 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 It is connected to water jacket 13, 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 10 connection of set, 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 hands Handle semi-circular tube 8 offers a square groove in each handle semi-circular tube 8, wherein being equipped in the square groove of a handle semi-circular tube Microswitch 18,18 key of microswitch protrude from the cone-shaped groove of handle outer surface, the square groove of another handle semi-circular tube Interior installation dichromatic LED 19,19 top of dichromatic LED expose to the cone-shaped groove of handle outer surface；Two The contraposition of handle 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.With four core sockets 15 quads 16 being welded pass through 17 tail end of handle set corresponding aperture, 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 high performance water cooling microwave melt needle with microwave power control switch that the present embodiment provides above embodiments 2 Assembling process be illustrated, 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 it is aided with and gets riveting ready and be fixed；

(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 more The point mechanical force bonding agent that presses and be aided with is fixed；In addition, in the outer conductor of metal outer bush 4 axle center hole and semi-rigid coaxial cable 3 The end of cooperation gives air-tightness and is 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 will gone out Water nozzle 11 is installed in the corresponding aperture that shank covers in 10 outer circles, is welded into " outlet component "；

(2) " water inlet component " water jacket 13 is placed on inner conduit 6, then, then by the inside and outside of semi-rigid coaxial cable 3 Conductor corresponds firm welding 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 inlet in the front end of radio-frequency joint 14 The contact site of 13 inner holes Yu 6 surface of inner water sleeve is covered, air-tightness is carried out 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, so Shank is covered 10 other ends afterwards to be sleeved on shank 5, the contact site of inner hole and 5 surface of shank, it is solid to carry out air-tightness welding It is fixed；

More than, complete the assembly and welding of the present embodiment needle body one integral piece part.It hereafter, can be according to national standard The related technical requirements such as GB9706.1, GB9706.6 and professional standard YY0838, YY0899 carry out the present embodiment needle body one integral piece Close inspection, eligible go 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 glued It is connected 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) by inlet tube and outlet tube pass through 17 tail end of handle set corresponding aperture respectively encapsulation and be fixed on water inlet tap 12 and water outlet On mouth 11；

(4) it 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 is coated with viscous Agent is connect to fix；

(5) quad 16 being welded with four core sockets 15 is passed through to the corresponding aperture of 17 tail end of handle set, respectively With each wiring pin of microswitch 18 and dichromatic LED 19 firm welding one by one, then, by two handle semi-circular tubes 8 After (together with microswitch 18 and dichromatic LED 19) contraposition is closed up, it is coated with bonding agent, is reloaded into the front end inner hole of shank body 9 Middle fixation；

(6) 7 uropore encapsulation of handle cap is coated 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 in matching surface Bonding 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.

It again shows that through this embodiment, the utility model is a kind of clinical tumor microwave ablation range (thermal field) stability Good, efficiency height, more tends to the microwave ablation surgical instrument of precision.Meanwhile a kind of band microwave power provided by the utility model The high performance water cooling microwave melt needle of control switch breaches existing setting microwave power output valve in the preoperative, recycles foot-operated Switch the precision for sufficiently meeting clinical tumor minimally-invasive treatment to control the traditional approach of host microwave power output and treatment system The harmony manipulated of uniting 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.All technical solutions formed using equivalent substitution or equivalent transformation, are all fallen within the utility model and wanted The protection scope asked.

Claims (8)

1. including handle and handle outer is arranged in a kind of high performance water cooling microwave melt needle with microwave power control switch Microwave antenna structure, wherein handle includes sequentially connected handle cap, handle body and handle set；Microwave antenna structure includes radiation Electrode, medium tube, semi-rigid coaxial cable and shank, wherein the inner conductor of semi-rigid coaxial cable one end is packed into radiation electrode tail portion In blind hole, medium tube is sleeved on radiation electrode tail portion, which is characterized in that microwave antenna structure further includes metal outer bush, metal Outer bush is inserted in along semi-rigid coaxial cable 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 On the outer conductor of semi-rigid coaxial cable；One end of shank is sleeved in the tail portion shoulder outer circle of metal outer bush, and shank and half Gap is formed between rigid coaxial cable；One end of inner conduit is protruded into the gap, and between shank and semi-rigid coaxial cable There is gap；The other end of semi-rigid coaxial cable, shank and inner conduit is passed through inside handle body from handle cap end；In handle The inner conductor in internal portion, semi-rigid coaxial cable is correspondingly connected with the inner conductor of radio-frequency joint and outer conductor respectively with outer conductor, into Water jacket one end is socketed on inner conduit, and the other end is fixed with radio-frequency joint, and water inlet tap is connected to water jacket, and shank covers one end socket In on shank, the other end is fixed with water jacket, and faucet is connected to shank set, and radio-frequency joint is set on handle set.

2. the high performance water cooling microwave melt needle according to claim 1 with microwave power control switch, which is characterized in that The handle further includes two handle semi-circular tubes, and a square groove is offered in each handle semi-circular tube, wherein in a handle Microswitch is installed, microswitch key protrudes from the cone-shaped groove of handle outer surface in the square groove of semi-circular tube；Another Dichromatic LED is installed, dichromatic LED top exposes to the circle of handle outer surface in the square groove of handle semi-circular tube Conical socket；Two handle semi-circular tube contrapositions close up rear side and are linked and packed with handle cap, and the other side is linked and packed with handle body.

3. the high performance water cooling microwave melt needle according to claim 1 with microwave power control switch, which is characterized in that The axle center hole of the metal outer bush, which is sleeved on the outer conductor of semi-rigid coaxial cable and is welded and fixed, to be integrated；The shank One end is sleeved in the tail portion shoulder outer circle of metal outer bush and is welded as a whole.

4. the high performance water cooling microwave melt needle according to claim 1 with microwave power control switch, which is characterized in that The radiation electrode is metal T shape cylindrical body, and front is cone or multiple edge body shape, and has enough Direct perforantes biologies The sharpness of tissue.

5. the high performance water cooling microwave melt needle according to claim 1 with microwave power control switch, which is characterized in that Annular groove is provided in the shoulder outer circle of medium tube tail portion.

6. the high performance water cooling microwave melt needle according to claim 1 with microwave power control switch, which is characterized in that Metal outer bush is that stairstepping tubular cylinder is aligned in metal outer bush encapsulation after medium tube shoulder outer circle using riveting In the metal outer bush outer circle position of medium tube outer circle annular groove, to realize being fastenedly connected for mutual no axial displacement.

7. the high performance water cooling microwave melt needle according to claim 2 with microwave power control switch, which is characterized in that Microswitch and dichromatic LED are connect by route with external work system.

8. the high performance water cooling microwave melt needle according to claim 2 with microwave power control switch, which is characterized in that The dichromatic LED red, green dichromatic LED for "-" type LED.