CN201775680U - High-power water cooling microwave ablation needle - Google Patents
High-power water cooling microwave ablation needle Download PDFInfo
- Publication number
- CN201775680U CN201775680U CN2010205201381U CN201020520138U CN201775680U CN 201775680 U CN201775680 U CN 201775680U CN 2010205201381 U CN2010205201381 U CN 2010205201381U CN 201020520138 U CN201020520138 U CN 201020520138U CN 201775680 U CN201775680 U CN 201775680U
- Authority
- CN
- China
- Prior art keywords
- water
- coaxial cable
- shank
- pipe
- puncture
- 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 - Lifetime
Links
Images
Abstract
A high-power water cooling microwave ablation needle comprises a puncture prick head, a needle rod, a handle, a water inlet pipe and a water outlet pipe. The water inlet pipe and the water outlet pipe are fixed onto the handle, a semi-rigid coaxial cable is arranged inside the needle rod, a cone or a triangular pyramid is arranged at the front end of the puncture prick head, a cylinder is arranged at the tail of the puncture prick head, an inner hole of the puncture prick head is fixedly connected with an inner conductor of the semi-rigid coaxial cable in a cold pressing manner, a water conduit sleeved on the outer side of the semi-rigid coaxial cable is arranged inside the needle rod, gaps are arranged between the water conduit and the outer wall of the semi-rigid coaxial cable and between the water conduit and the inner wall of the needle rod to respectively form a water inlet passage and a water outlet passage, and a water inlet cavity and a water outlet cavity are respectively connected with the water inlet pipe and the water outlet pipe, arranged at the rear end of the needle rod and respectively connected with the water inlet passage and the water outlet passage. Cooling water is delivered to the front end of the needle rod via the area between the coaxial cable and the inner wall of the water conduit, passes an inclined opening and a pore of the water conduit, and returns from the area between the outer wall of the water conduit and the inner wall of the needle rod. The structure of the high-power water cooling microwave ablation needle sufficiently uses space of the inner hole of the needle rod and space of the coaxial cable, and maximizes the conductivity of the cooling water.
Description
Technical field
This utility model relates to a kind of water-cooled microwave melt needle, belongs to the special-purpose technical field of medical instruments of tumour ablation treating.
Background technology
Along with modern science and technology and oncology's progress, over past ten years, domestic microwave tumour ablation technology makes a breakthrough.The microwave tumour ablation is to utilize the microwave energy effect to organize to produce heat effect at once, in several minutes to ten several minutes time, its thermal field central temperature can reach more than 100 ℃, and tumor tissues is solidified under this high temperature moment, deactivation, reaches the purpose of tumour ablation treating.Microwave tumour ablation art is the focus with microwave melt needle intervener soma, continues the launched microwave energy by its front end, to implement operation, because of its efficient height, wound is little, and depth of interaction and the equal may command of range size to organizing, so be applicable to the ablative surgery of whole body entity tumor.
At present, the microwave melt needle of clinical use has the following disadvantages:
1 needle body front end operating temperature height influences the stability of microwave energy emission, simultaneously the shank temperature high normal structure of can burning.
There is defective in 2 needle body front end microwave emitting structurals, restrict its spendable microwave output power.
There is defective in 3 needle body front end microwave emitting structurals, cause the microwave heating effect district axially to be long spindle along needle body, exist than big difference with the shape of general tumor tissues.
The utility model content
Technical problem to be solved in the utility model is, overcome existing microwave melt needle power little, burn easily, and the microwave heating effect district axially is the defective of long spindle along needle body, a kind of water-cooled microwave melt needle that can high-power use is provided, the power height is safe in utilization, and the microwave heating effect district is near spheroid.
In order to solve above technical problem, this utility model provides can high-power use the water-cooled microwave melt needle, comprise: the puncture tartar, shank, handle, be fixed on the water inlet pipe on the handle, outlet pipe, have one and half firm coaxial cables in the described shank, it is characterized in that: puncture tartar's front end is cone or rhizoma sparganic cone, afterbody is a cylinder, its endoporus is affixed in the mode of colding pressing with the inner wire of half firm coaxial cable, be provided with one in the described shank and be enclosed within the outer aqueduct of half firm coaxial cable, described aqueduct and half is just between the coaxial cable outer wall, and have the gap between aqueduct and the shank inwall and form inlet channel and water outlet respectively, the shank rear end is provided with respectively and described water inlet pipe, the intake antrum that outlet pipe connects, water chamber, described intake antrum, water chamber is connected with water outlet with inlet channel respectively.
Further, this utility model can high-power use the water-cooled microwave melt needle, also has the double hyer insulation dielectric-sleeve, the internal layer dielectric-sleeve is the pipe shape, the outer media sleeve pipe is a T type pipe shape, and described internal layer dielectric-sleeve encapsulation is on puncture tartar and half firm coaxial cable, and its front end pushes against puncture thorn cephalic par, described outer media casing pipe sleeve is contained on the internal layer dielectric-sleeve, and shank and outer media sleeve pipe rear end are fixed.
Further, the water-cooled microwave melt needle that this utility model can high-power use, the front portion of described aqueduct is provided with the water blockoff ring, and described water blockoff ring is fixing with half coaxial cable outer conductor welding just, the cylindrical of described water blockoff ring and the sealing-in of shank endoporus., described water blockoff ring is fixing with half coaxial cable outer conductor welding just, the cylindrical of described water blockoff ring and the sealing-in of shank endoporus.
Further, aqueduct front end described in the utility model has oblique groove, and offers apopore on the front end tube wall.
Cooling water is delivered to the shank front end between coaxial cable and aqueduct inwall, through the angle and the aperture of aqueduct, again from backwater between aqueduct outer wall and the shank inwall.This structure makes full use of the space of shank endoporus and coaxial cable, makes the admittance ability of cooling water reach maximum.
This utility model melts apparatus for a kind of tumour ablation treating with microwave energy antennamitter reason and microwave tumour ablation science of technology ground.The enforcement of the structure of each part of needle body front end, geomery and material selection and the technology of colding pressing, extraordinary adhesive technology, solder technology, make the water-cooled microwave melt needle that is under the abundant cooling condition, spendable microwave power is big, efficient is high, the microwave energy region of thermal effect is nearly sphere-like, and guarantee high sharpness, high strength, the high tenacity of needle body front end, good stability.After 30 minutes this utility model working times, microwave thermal district center temperature will be above 150 ℃, and the temperature on shank surface is no more than 45 ℃ outside the microwave energy heating hot-zone.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further described.
Fig. 1 is the water-cooled microwave melt needle structural representation that this utility model can high-power use.
Fig. 2 is the A district enlarged drawing of Fig. 1.
Number in the figure is schematically as follows:
1-puncture tartar, 2-outer media sleeve pipe, 3-internal layer dielectric-sleeve, 4-half be coaxial cable, 5-" O " type sealing circle, 6-water blockoff ring, 7-shank, 8-aqueduct, 9-shank positioning sleeve, 10-handle, 11-water chamber, 12-water proof ring, 13-intake antrum, 14-apopore, 15-microwave coaxial adapter, 16-water inlet pipe, 17-outlet pipe just.
The specific embodiment
As Fig. 1, shown in Figure 2, this utility model provides can high-power use the water-cooled microwave melt needle, comprise: puncture tartar 1, shank 7, handle 10, be fixed on the water inlet pipe 16 on the handle 10, outlet pipe 17, have one and half firm coaxial cables 4 in the shank 7, its improvements are: puncture tartar's 1 front end is the rhizoma sparganic cone, afterbody is cylinder (also can be cone), its endoporus is affixed in the mode of colding pressing with the inner wire of half firm coaxial cable 4, be provided with an aqueduct 8 that is enclosed within outside the half firm coaxial cable 4 in the shank 7, aqueduct 8 and half is just between coaxial cable 4 outer walls, and have the gap between aqueduct 8 and shank 7 inwalls and form inlet channel and water outlet respectively, shank 7 rear ends are provided with respectively and water inlet pipe 16, the intake antrum 13 that outlet pipe 17 connects, water chamber 11, intake antrum 13, water chamber 11 is connected with water outlet with inlet channel respectively.Among Fig. 1,9 is the shank positioning sleeve, is used for fixing between shank and the handle, and 12 is the water proof ring, and it separates intake antrum and water chamber.Among Fig. 1,15 is the microwave coaxial adapter.
In the present embodiment as shown in Figure 2, this water-cooled microwave melt needle also has the double hyer insulation dielectric-sleeve, internal layer dielectric-sleeve 3 is the pipe shape, outer media sleeve pipe 2 is a T type pipe shape, internal layer dielectric-sleeve 3 encapsulations are on puncture tartar 1 and half firm coaxial cable 4, and its mating surface coating adhesive is fixed, and its front end pushes against puncture tartar 1 end, outer media sleeve pipe 2 is sleeved on the internal layer dielectric-sleeve 3, and shank 7 is fixed with outer media sleeve pipe 2 rear ends.The front portion of aqueduct 8 is provided with water blockoff ring 6, and water blockoff ring 6 is fixing with half coaxial cable 4 outer conductors welding just, and weld seam must not leak, seep water, the cylindrical of water blockoff ring 6 and shank 7 endoporus sealing-ins.The narrow groove of " O " type sealing snare 5 between water blockoff ring 6 and internal layer dielectric-sleeve 3 smeared bonding agent then.
In order to make the cooling water pin of flowing through smoothly do innerly, in this example, aqueduct 8 front ends have oblique groove, and offer apopore 14 on the front end tube wall.
In addition to the implementation, 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 (4)
1. water-cooled microwave melt needle that can high-power use, comprise: the puncture tartar, shank, handle, be fixed on the water inlet pipe on the handle, outlet pipe, have one and half firm coaxial cables in the described shank, it is characterized in that: puncture tartar's front end is cone or rhizoma sparganic cone, afterbody is a cylinder, its endoporus is affixed in the mode of colding pressing with the inner wire of half firm coaxial cable, be provided with one in the described shank and be enclosed within the outer aqueduct of half firm coaxial cable, described aqueduct and half is just between the coaxial cable outer wall, and have the gap between aqueduct and the shank inwall and form inlet channel and water outlet respectively, the shank rear end is provided with respectively and described water inlet pipe, the intake antrum that outlet pipe connects, water chamber, described intake antrum, water chamber is connected with water outlet with inlet channel respectively.
2. water-cooled microwave melt needle that can high-power use according to claim 1, it is characterized in that: also have the double hyer insulation dielectric-sleeve, the internal layer dielectric-sleeve is the pipe shape, the outer media sleeve pipe is a T type pipe shape, described internal layer dielectric-sleeve encapsulation is on puncture tartar and half firm coaxial cable, its front end pushes against puncture thorn cephalic par, and described outer media casing pipe sleeve is contained on the internal layer dielectric-sleeve, and shank and outer media sleeve pipe rear end are fixed.
3. water-cooled microwave melt needle that can high-power use according to claim 1, it is characterized in that: the front portion that also has aqueduct is provided with the water blockoff ring, described water blockoff ring is fixing with half coaxial cable outer conductor welding just, the cylindrical of described water blockoff ring and the sealing-in of shank endoporus.
4. water-cooled microwave melt needle that can high-power use according to claim 1, it is characterized in that: described aqueduct front end has oblique groove, and offers apopore on the front end tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205201381U CN201775680U (en) | 2010-09-07 | 2010-09-07 | High-power water cooling microwave ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205201381U CN201775680U (en) | 2010-09-07 | 2010-09-07 | High-power water cooling microwave ablation needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201775680U true CN201775680U (en) | 2011-03-30 |
Family
ID=43788917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205201381U Expired - Lifetime CN201775680U (en) | 2010-09-07 | 2010-09-07 | High-power water cooling microwave ablation needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201775680U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006321A (en) * | 2012-11-08 | 2013-04-03 | 南京维京九洲医疗器械研发中心 | Water-cooling microwave ablation needle-shaped antenna |
| CN104323856A (en) * | 2014-11-11 | 2015-02-04 | 南京维京九洲医疗器械研发中心 | Manufacturing method of non-magnetic water-cooled microwave ablation needle |
| CN104622569A (en) * | 2015-02-15 | 2015-05-20 | 季加孚 | High-efficiency water-cooled microwave thermocoagulation hemostasis needle antenna |
| CN104720892A (en) * | 2015-03-16 | 2015-06-24 | 李晓光 | Microwave ablation antenna used for cystic tumor ablation therapy |
| CN106725844A (en) * | 2013-03-15 | 2017-05-31 | 柯惠有限合伙公司 | Microwave energy delivery device and system |
| CN107260301A (en) * | 2017-04-20 | 2017-10-20 | 南通融锋医疗科技有限公司 | Proper circle microwave ablation antenna and system |
| CN107802343A (en) * | 2017-11-06 | 2018-03-16 | 南京微创医学科技股份有限公司 | A kind of Split variable-diameter microwave needle |
-
2010
- 2010-09-07 CN CN2010205201381U patent/CN201775680U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006321A (en) * | 2012-11-08 | 2013-04-03 | 南京维京九洲医疗器械研发中心 | Water-cooling microwave ablation needle-shaped antenna |
| CN103006321B (en) * | 2012-11-08 | 2016-04-20 | 南京维京九洲医疗器械研发中心 | A kind of water cooling microwave ablation aciculiform antenna |
| CN106725844A (en) * | 2013-03-15 | 2017-05-31 | 柯惠有限合伙公司 | Microwave energy delivery device and system |
| CN104323856A (en) * | 2014-11-11 | 2015-02-04 | 南京维京九洲医疗器械研发中心 | Manufacturing method of non-magnetic water-cooled microwave ablation needle |
| WO2016074344A1 (en) * | 2014-11-11 | 2016-05-19 | 南京维京九洲医疗器械研发中心 | Manufacturing method for non-magnetic water-cooled microwave ablation needle |
| US10874458B2 (en) | 2014-11-11 | 2020-12-29 | Nanjing Vison-China Medical Devices R & D Center | Manufacturing method for non-magnetic water-cooled microwave ablation needle |
| CN104622569A (en) * | 2015-02-15 | 2015-05-20 | 季加孚 | High-efficiency water-cooled microwave thermocoagulation hemostasis needle antenna |
| CN104720892A (en) * | 2015-03-16 | 2015-06-24 | 李晓光 | Microwave ablation antenna used for cystic tumor ablation therapy |
| CN107260301A (en) * | 2017-04-20 | 2017-10-20 | 南通融锋医疗科技有限公司 | Proper circle microwave ablation antenna and system |
| CN107802343A (en) * | 2017-11-06 | 2018-03-16 | 南京微创医学科技股份有限公司 | A kind of Split variable-diameter microwave needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201775680U (en) | High-power water cooling microwave ablation needle | |
| CN201775679U (en) | Water-cooled microwave ablation needle for bone tumor therapy | |
| CN100574719C (en) | Gas throttling cooling type radio frequency ablation electrode | |
| JP6231722B2 (en) | Method for producing non-magnetic water-cooled microwave ablation needle | |
| CN104688336A (en) | Dedicated kidney cancer microwave ablation antenna of laparoscope | |
| CN107260301A (en) | Proper circle microwave ablation antenna and system | |
| CN106970101B (en) | A kind of active cooling high temperature resistant electrical isolation anticorrosion particle flux heat head probe | |
| CN103202728A (en) | Single microwave treatment needle with multiple acting sites | |
| CN104546126B (en) | A kind of microwave ablation antenna suitable for interventional therapy of lung cancer | |
| CN204723177U (en) | The special renal carcinoma microwave melt needle of peritoneoscope | |
| CN104688335A (en) | Microwave ablation antenna for large hepatic cellular cancer treatment | |
| CN201431510Y (en) | Gas-cooling and perfusion combined-type radio-frequency ablation probe electrode device for intervertebral disc | |
| CN102949237A (en) | Probe heating device based on liquid metal | |
| CN202554105U (en) | Small diameter water-cooled microwave ablation needle | |
| CN204581504U (en) | A kind of water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure | |
| CN109630368A (en) | High-power complementary field magnetomotive plasma thruster anode high efficient heat exchanging structure | |
| CN204744403U (en) | Big liver cancer microwave ablation needle | |
| CN207679528U (en) | Microwave melt needle and microwave ablation therapeutic equipment | |
| CN104720892A (en) | Microwave ablation antenna used for cystic tumor ablation therapy | |
| CN207605007U (en) | A kind of proper circle water cooling microwave ablation antenna | |
| CN210301206U (en) | Radio frequency ablation electrode needle | |
| CN207605008U (en) | A kind of proper circle water cooling microwave ablation system | |
| CN106373844B (en) | Collector porcelain cylinder on multi-level depressurization collector and the collector for including the porcelain cylinder | |
| CN107007350B (en) | Microwave ablation needle and microwave ablation therapeutic instrument | |
| CN204671270U (en) | One is furnished with biopsy function microwave ablation needle therapeutic bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NANJING WEIJINGJIUZHOU MEDICAL EQUIPMENT RESEARCHA Free format text: FORMER NAME: NANJING QINGHAI MICROWAVE ELECTRONICS INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210003, Zhongshan North Road, Jiangsu, Nanjing, No. 216 and building 5 days Patentee after: NANJING VISON JIUZHOU MEDICAL EQUIPMENT RESEARCH AND DEVELOPMENT CENTER Address before: 210003, Zhongshan North Road, Jiangsu, Nanjing, No. 216 and building 5 days Patentee before: Nanjing Qinghai Microwave Electronic Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |