CN202554107U - Water-cooling microwave needle with function of measuring bar temperature - Google Patents
Water-cooling microwave needle with function of measuring bar temperature Download PDFInfo
- Publication number
- CN202554107U CN202554107U CN2012202440375U CN201220244037U CN202554107U CN 202554107 U CN202554107 U CN 202554107U CN 2012202440375 U CN2012202440375 U CN 2012202440375U CN 201220244037 U CN201220244037 U CN 201220244037U CN 202554107 U CN202554107 U CN 202554107U
- Authority
- CN
- China
- Prior art keywords
- water
- temperature
- needle
- shank
- coaxial cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A water-cooling microwave needle with a function of measuring bar temperature comprises a puncture head, a needle bar, a semi-rigid coaxial cable, a radio frequency connector, a needle bar locating sleeve, a water-inlet and a water-outlet, wherein the semi-rigid coaxial cable is arranged inside the needle bar, the front end of the semi-rigid coaxial cable is connected with the puncture head, and back end of the semi-rigid coaxial cable is connected with the radio frequency connector. The water-inlet is communicated with a water-inlet cavity, the water-outlet is communicated with a water-outlet cavity, and a thermocouple temperature-measuring head is arranged inside the water-outlet cavity. By arranging the temperature-measuring end (a head) inside a path of circulated cooling water which flows inside the water-cooling microwave needle and adopting the method of directly measuring water-outlet temperature to obtain temperature information of the needle bar, and therefore measurement data are accurate. Thus, water-cooling microwave needle with the function of measuring bar temperature has the advantages of being high in sensitivity and reliable in method.
Description
Technical field
This utility model relates to a kind of water-cooled microwave needle with measuring stick temperature function, belongs to the technical field that the microwave energy technology is applied to the active medical apparatus.
Background technology
Be accompanied by the development of modern high and new technology, microwave heat therapeutic technology and the microwave thermal technology of coagulating obtain using more widely in medical research and clinical field, and its theoretical research simultaneously and clinical practice are deepening continuously, and progressively improve.The microwave thermal technology of coagulating is applied to the microwave tumour ablation of clinical medicine; Be that the microwave antenna that diameter is very little is got involved in tumor tissues inside; Microwave radiation energy also directly acts on tumor tissues, causes that tumor is solidified, necrosis, reaches original position deactivation tumor treatment purpose.Because of the significant advantage of its Minimally Invasive Surgery, clinical practice is also extensive further, develops rapid further.
One of core devices of medical microwave pin is the coaxial cable of needle body core, and it is bearing two big functions of Transmission Microwave and microwave radiation energy.At needle body front end microwave radiation energy, because of the inner and outer conductor at the coaxial cable terminal of its core is an open state.And the thin coaxial cable of long shank core again is used for Transmission Microwave.In the operation process of microwave ablation; Microwave needle body front end is in the very ambient condition of high-temperature; And the inevitable loss of the standing wave of microwave transmission and coaxial cable medium etc.; Also all will be converted into heat energy, and make microwave shank (body) temperature partly that gets involved inside of human body raise gradually, this is the phenomenon that can not be ignored clinically.For this reason, coagulate regulation in the equipment national sector standard (declaration original text), " get involved the hot hot condenser of equipment with fixed attention and the temperature of normal structure contact portion and be no more than 45 ℃ in microwave thermal." hot condenser is microwave melt needle.
At present, there is following weak point in the water-cooled microwave needle that uses clinically aspect the bar temperature measurement:
The measuring method of existing microwave shank temperature is with critesistor or (temperature measuring head) colligation of thermocouple measurement end and be adjacent on the shank of the microwave needle in handle, thus the temperature information of acquisition shank.This measuring method sensitivity is lower, and temperature data is not accurate enough, and the one, the accuracy of measuring temperature is relevant with the contact condition of shank with temperature element; The 2nd, the collection point of temperature data is in the handle of needle body afterbody, and the shank temperature is lower than the shank actual temperature that gets involved in tissue here.The microwave needle that has again for evading electromagnetic interference, also will fill up the very thin insulant of last layer between shank and temperature element.The microwave needle that has does not again just have bar temperature temperature measuring equipment at all, because " bar temperature measurement " has been formulated into the type approval test project of product, this type microwave needle can't monitor in microwave ablation operation process king-rod temperature.
The utility model content
This utility model technical problem to be solved is: overcome above-mentioned prior art shortcoming, a kind of water-cooled microwave needle with measuring stick temperature function is provided.
In order to solve above technical problem; The water-cooled microwave needle that this utility model provides with measuring stick temperature function; Composition comprises: puncturing head, dielectric-sleeve, shank, half be coaxial cable, radio frequency connector, shank positioning sleeve, water inlet tap, faucet just, and said half firm coaxial cable is arranged in the shank, and front end connects puncturing head; The rear end connects radio frequency connector; Said water inlet tap is communicated with intake antrum, and said faucet is communicated with water chamber, it is characterized in that: be provided with the thermocouple temperature measurement head in the said water chamber.
The water-cooled microwave needle with measuring stick temperature function that this utility model provides is through measuring the temperature of the recirculated cooling water that is flowing in the water-cooled microwave needle needle body, obtaining the temperature information of shank.This utility model is to be arranged on temperature survey end (head) among the path of the intravital recirculated cooling water of water-cooled microwave needle pin, with the direct way of measurement cooling water temperature, obtains the temperature information of shank, and is highly sensitive so measurement data is accurate, and method is reliable.
This utility model adopts copper-CopperNickel thermocouple thermometric mode, and it is simple and reliable for structure, and its temperature survey end (head) directly contacts with measured matter in addition, so certainty of measurement is high.
Further, be provided with branch water plate between said intake antrum and the water chamber, said shank and half just has been provided with the inner water sleeve pipe between the coaxial cable, and the rear end of said inner water sleeve pipe is fixing with the welding of branch water plate.
Further, be provided with the threading insulating base in the said water chamber, said thermocouple temperature measurement head is installed on the threading insulating base.
Threading insulating base and branch water plate, and copper-copper nickel wire lead and threading insulating base line hole all adopt the high temperature resistant adhesive para-position bonding.High temperature resistant adhesive has good airproof performance and the high characteristic of adhesive strength.
Further, the thermometric lead of said thermocouple temperature measurement head links to each other with the processor of host computer system after passing the handle of water-cooled microwave needle.
Said copper-CopperNickel thermocouple temperature measuring head is in the water chamber of needle body (cooling water), can directly measure the leaving water temperature of cooling water, and its thermometric lead sends temperature information the processor of host computer system to, again through unitary operation and processing, and the displays temperature data.
This utility model is with the temperature of measuring microwave needle water chamber internal cooling water; Judge the temperature of shank; And then can also actively control the initial temperature of cooling water and the flow of cooling water, realize control, and even the temperature of the microwave needle state of cooling is controlled microwave shank temperature; Make it satisfy the safety criterion in the clinical practice, that guarantees to perform the operation carries out smoothly.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further described.
Fig. 1 is this utility model embodiment one structural representation.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is this utility model embodiment two structural representations.
Fig. 4 is the B-B cutaway view of Fig. 3.
The label signal as follows among the figure: 1-thermocouple temperature measurement head; 2-divides the water plate; The 3-radio frequency connector; The 4-water inlet tap; The 5-faucet; 6-thermometric lead; 7-threading insulating base; 8-half is coaxial cable just; 9-inner water sleeve pipe; The 10-shank; 11-shank positioning sleeve; Intake antrum b; Water chamber a.
The specific embodiment
Embodiment one
Like Fig. 1, the present embodiment water-cooled microwave needle shown in 2; Composition comprises: puncturing head, shank 10, shank positioning sleeve 11, half be coaxial cable 8, radio frequency connector 3, branch water plate 2, water inlet tap 4, faucet 5 just; Half firm coaxial cable 8 is arranged in the shank 10, and its front end connects puncturing head, and the rear end connects radio frequency connector 3; Water inlet tap 4 is connected with dividing water plate 2; Faucet 5 is connected with dividing water plate 2, is provided with thermocouple temperature measurement head 1 in the water chamber a, and the thermometric lead 6 of temperature measuring head 1 links to each other with the processor of host computer system after passing threading insulating base 7, water-cooled microwave needle handle.
In this example, said temperature measuring head is copper-CopperNickel thermocouple temperature survey end, and said thermometric lead is high insulation resistance enamel-cover fine copper silk and Contra wire lead, is to select the national sector standard series of products for use.
Like Fig. 1, shown in 2, be provided with branch water plate 2 between intake antrum b and the water chamber a, shank 10 and half just has been provided with inner water sleeve pipe 9 between the coaxial cable 8, and the rear end of inner water sleeve pipe 9 is fixed with dividing water plate 2.Be provided with threading insulating base 7 in the water chamber a, thermocouple temperature measurement head 1 is installed on the threading insulating base 7.
The measuring stick isothermal segment of present embodiment water-cooled microwave needle, assemble flow is following:
At first accomplish the assembled of dividing the water plate: with water inlet tap 4 and faucet 5 and 2 para-positions assembling of branch water plate and firm welding.Copper-copper nickel wire thermometric the lead 6 that is thermocouple measurement 1 then passes threading insulating base 7 threading apertures and bonding with the heatproof bonding agent; And threading insulating base 7 and branch water plate 2 para-positions assembling and bonding; It is bonding firmly to carry out technique for sticking, must not leak or phenomenon such as infiltration.
Subsequently successively para-position assembling and welding be; Half coaxial cable 8 and radio frequency connector 3 dress welderings just; Must not short circuit between its inner and outer conductor; The port endoporus encapsulation and the welding that divide endoporus and inner water sleeve pipe 9 encapsulations and welding, the step cylindrical that divides water plate 2 and the radio frequency connector 3 of water plate 2, the port endoporus of the endoporus of shank positioning sleeve 11 and shank 10 encapsulations and welding, shank positioning sleeve 11 and step cylindrical encapsulation that divides water plate 2 and welding.So far, accomplish the assembling of microwave needle needle body internal cooling water temperature measuring equipment, all welded seam must not be leaked or seep water.
In the present embodiment, water inlet tap 4 and faucet 5 are (shank radially) layout side by side.
Embodiment two
In Fig. 3, the embodiment two shown in 4, water inlet tap 4 and faucet 5 be front and back (needle road axis to) layouts.All the other structures of embodiment two are identical with embodiment one, repeat no more here.
Except that the foregoing description, this utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of this utility model requirement.
Claims (5)
1. the water-cooled microwave needle that has the measuring stick temperature function; Composition comprises: puncturing head, shank, half be coaxial cable, radio frequency connector, shank positioning sleeve, water inlet tap, faucet just, and said half firm coaxial cable is arranged in the shank, and front end connects puncturing head; The rear end connects radio frequency connector; Said water inlet tap is communicated with intake antrum, and said faucet is communicated with water chamber, it is characterized in that: be provided with the thermocouple temperature measurement head in the said water chamber.
2. the water-cooled microwave needle with measuring stick temperature function according to claim 1 is characterized in that: the thermometric lead of said thermocouple temperature measurement head links to each other with the processor of host computer system after passing the handle of water-cooled microwave needle.
3. the water-cooled microwave needle with measuring stick temperature function according to claim 2; It is characterized in that: be provided with branch water plate between said water chamber and the intake antrum; Said shank and half just has been provided with the inner water sleeve pipe between the coaxial cable, and the rear end of said inner water sleeve pipe is fixed with dividing the water plate.
4. the water-cooled microwave needle with measuring stick temperature function according to claim 3 is characterized in that: be provided with the threading insulating base in the said water chamber, said thermocouple temperature measurement head is installed on the threading insulating base.
5. the water-cooled microwave needle with measuring stick temperature function according to claim 4, it is characterized in that: said water inlet tap and faucet are arranged side by side, or front and back are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202440375U CN202554107U (en) | 2012-05-29 | 2012-05-29 | Water-cooling microwave needle with function of measuring bar temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202440375U CN202554107U (en) | 2012-05-29 | 2012-05-29 | Water-cooling microwave needle with function of measuring bar temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202554107U true CN202554107U (en) | 2012-11-28 |
Family
ID=47203817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202440375U Expired - Fee Related CN202554107U (en) | 2012-05-29 | 2012-05-29 | Water-cooling microwave needle with function of measuring bar temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202554107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420049A (en) * | 2016-12-05 | 2017-02-22 | 温州市人民医院 | Water-cooled microwave ablation needle |
| CN114366290A (en) * | 2022-01-19 | 2022-04-19 | 山东省医大医生集团有限公司 | Remote real-time temperature measurement microwave ablation machine |
-
2012
- 2012-05-29 CN CN2012202440375U patent/CN202554107U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420049A (en) * | 2016-12-05 | 2017-02-22 | 温州市人民医院 | Water-cooled microwave ablation needle |
| CN106420049B (en) * | 2016-12-05 | 2019-08-09 | 温州市人民医院 | A kind of water-cooled cooling type microwave melt needle |
| CN114366290A (en) * | 2022-01-19 | 2022-04-19 | 山东省医大医生集团有限公司 | Remote real-time temperature measurement microwave ablation machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202605011U (en) | Ablation and temperature measurement integrated water-cooled microwave needle | |
| CN107174339A (en) | Being capable of the excessive electrosurgical tissue excision system for bending and alerting user of detection probe | |
| JP2017527359A (en) | Method for producing non-magnetic water-cooled microwave ablation needle | |
| CN202554107U (en) | Water-cooling microwave needle with function of measuring bar temperature | |
| CN201431510Y (en) | Gas-cooling and perfusion combined-type radio-frequency ablation probe electrode device for intervertebral disc | |
| CN103340684B (en) | Half firm water-cooled microwave ablation antenna | |
| CN110236671A (en) | A kind of tumor microwave ablation needle with film resistor multi-point temperature measurement function | |
| CN108938080A (en) | Flexible microwave ablation needle under a kind of endoscopic ultrasonography | |
| CN203619673U (en) | Real-time temperature measurement and ablation integrated high-performance water-cooled microwave ablation antenna | |
| CN202554105U (en) | Small diameter water-cooled microwave ablation needle | |
| CN201775680U (en) | High-power water cooling microwave ablation needle | |
| CN106166088A (en) | Anti-microwave interference thermometric with melt integral type high performance water cooling microwave ablation antenna | |
| CN205903307U (en) | Microwave ablation needle under visual scope that has a distal end temperature measurement function | |
| CN103536357B (en) | There is real time temperature measurement and melt the semi-rigid water-cooling microwave ablation antenna being integrated | |
| CN203555830U (en) | Semi-rigid water-cooling microwave ablation antenna with integration of real-time temperature measurement and ablation | |
| CN102058428A (en) | Multifunctional cold-circulating bundling microwave treatment probe | |
| CN202554106U (en) | High-strength water-cooled microwave ablation needle | |
| CN112384165B (en) | System for microwave ablation and temperature measurement during ablation | |
| CN109481001B (en) | Cryogenic liquid type cryoablation equipment | |
| CN108882962A (en) | The multipoint mode thermocouple assembly of wire count with reduction | |
| CN103584915A (en) | High-performance water cooling microwave ablation antenna integrating real-time temperature measurement and ablation | |
| CN109259857A (en) | One kind semi-rigid penetration type water cooling Microwave Coagulation Therapy instrument under endoscope guidance | |
| CN216628692U (en) | Electric field pulse ablation device | |
| CN219106511U (en) | Microwave ablation needle adopting hollow inner conductor coaxial cable | |
| Franconi et al. | Prospects for radiofrequency hyperthermia applicator research. I–Pre-optimised prototypes of endocavitary applicators with matching interfaces for prostate hyperplasia and cancer treatments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |