CN104490470A - Multi-gap electromagnetic ablation cutter - Google Patents
Multi-gap electromagnetic ablation cutter Download PDFInfo
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- CN104490470A CN104490470A CN201410837034.6A CN201410837034A CN104490470A CN 104490470 A CN104490470 A CN 104490470A CN 201410837034 A CN201410837034 A CN 201410837034A CN 104490470 A CN104490470 A CN 104490470A
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- cutter
- outer layer
- ablation cutter
- melt
- gap electromagnetic
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Abstract
The invention discloses a multi-gap electromagnetic ablation cutter. The multi-gap electromagnetic ablation cutter is of a coaxial cylinder shape, wherein an inner layer and an outer layer of the ablation cutter are metal conductors; an insulation medium is filled between the metal conductors in the inner layer and the outer layer; at least two radial gaps are formed in the metal conductors in the outer layer at an equal interval. The multi-gap electromagnetic ablation cutter is capable of burning the precutting surface of a liver by electromagnetic wave at multiple points for a single time; an integral bleeding-stopping surface can be built at a time, so that the operation time is shortened while the operation bleeding is remarkably reduced.
Description
Technical field
Invention relates to a kind of medical apparatus and instruments, particularly relates to a kind of many slot electromagnetic and melts cutter.
Background technology
Scientific cirle outside, hepatotomy is regarded as highly difficult, a high risk operation, very high to the requirement of operator.And existing various hepatotomy equipment, all there is mute time in various degree slow, the various complexity of operative process, the hemorrhage shortcoming such as many.Existing various RF/Microwave liver cutting equipment all adopts single-point repeatedly burn liver thus set up tourniquet, and its process is slowly complicated and volume of leaving is hemorrhage.
Summary of the invention
Invention aims to provide a kind of many slot electromagnetic and melts cutter, uses single multiple spot electromagnetic wave to burn the pre-tangent plane of liver, disposablely sets up a complete hemostasis face, thus shortens operating time and reduce operative hemorrhage significantly.
For achieving the above object, the technical scheme that invention adopts is as follows:
It is coaxial cylindrical that many slot electromagnetic of disclosure of the invention melt cutter, and the inside and outside layer melting cutter is metallic conductor, fills dielectric between inside and outside layer metallic conductor, and described outer layer metal conductor is equidistant offers at least 2 gaps radially.
Invention in use, encouraged by the electromagnetic signal of adaptation, its apertured skin can form multiple spot electromagnetic radiation, every section of outer field axial dimension can be suitable with operation wavelength, add the working size melting cutter, the needs of longer surgical wound can be met, can disposablely burn whole wound thus set up tourniquet.
Preferably, described gap number be more than or equal to 2 integer, the width in each gap increases progressively from the one end of melting cutter successively to the other end.
Preferably, described dielectric is vinyl chloride.
Preferably, the inside and outside layer metallic conductor end melting cutter described in is connected and axially extends to form taper.
Many slot electromagnetic of disclosure of the invention melt cutter, the pre-tangent plane of liver can be burnt by single multiple spot electromagnetic wave, disposablely set up a complete hemostasis face, thus shorten operating time and reduce operative hemorrhage significantly, disposablely solve the problems such as hemorrhage and trivial operations consuming time, the liver process simplification of danger by complexity, it is made to become safety, easy, fast, in surgery of liver, there is great practical value, great Academic Influence and economic benefit will be produced.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of invention;
Fig. 2 is the directional diagram of invention;
Fig. 3 is the three-dimensional radiation design sketch of invention;
Fig. 4 invents the heats figure be placed in liver;
In figure: 1-outer layer metal conductor, 2-inner layer metal conductor, 3-gap, 4-dielectric.
Detailed description of the invention
In order to make the object of invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, invention is further elaborated.
As shown in Figure 1, it is coaxial cylindrical that many slot electromagnetic of disclosure of the invention melt cutter, comprise outer layer metal conductor 1 and inner layer metal conductor 2, the external diameter of outer layer metal conductor 1 is 1.8mm, the external diameter of inner layer metal conductor 2 is 0.9mm, , dielectric 4 is filled between outer layer metal conductor 1 and inner layer metal conductor 2, dielectric 4 is vinyl chloride, outer layer metal conductor 1 equidistantly leaves 4 gaps radially, the width in 4 gaps from front end to end, be followed successively by 1mm, 1.3mm, 3.38mm, 6.59mm, the axial dimension of the outer layer metal conductor 1 between two adjacent slits is 25mm, the axial dimension of the outer layer metal conductor 1 at two ends is respectively 25mm, inner layer metal conductor 2 is connected with outer layer metal conductor 1 end and axially extends to form taper.
As shown in Figure 2 and Figure 3, the angle of radiation of invention is good, concentration of energy, its reflection loss S11=-12.85dB.
As shown in Figure 4, when invention is placed on and heats in liver, the radius of center 80 degree celsius temperature is about 15mm, disposablely can set up a complete hemostasis face.
Certainly; invention also can have other various embodiments; when not deviating from invention spirit and essence thereof, those of ordinary skill in the art can make various corresponding change and distortion according to invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by invention.
Claims (4)
1. more than one kind, slot electromagnetic melts cutter, it is characterized in that: described in melt cutter be coaxial cylindrical, the inside and outside layer melting cutter is metallic conductor, fills dielectric between inside and outside layer metallic conductor, and described outer layer metal conductor is equidistant offers at least 2 gaps radially.
2. many slot electromagnetic according to claim 1 melt cutter, it is characterized in that: described gap width increases progressively from the one end of melting cutter successively to the other end.
3. many slot electromagnetic according to claim 1 melt cutter, it is characterized in that: described dielectric is vinyl chloride.
4. many slot electromagnetic according to claim 2 melt cutter, it is characterized in that: described in melt cutter inside and outside layer metallic conductor end be connected and axially extend to form taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837034.6A CN104490470B (en) | 2014-12-29 | 2014-12-29 | Many slot electromagnetic melt cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837034.6A CN104490470B (en) | 2014-12-29 | 2014-12-29 | Many slot electromagnetic melt cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104490470A true CN104490470A (en) | 2015-04-08 |
| CN104490470B CN104490470B (en) | 2016-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410837034.6A Active CN104490470B (en) | 2014-12-29 | 2014-12-29 | Many slot electromagnetic melt cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104490470B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520782A (en) * | 2016-02-02 | 2016-04-27 | 四川大学华西医院 | Water-cooled electromagnetic bleeding-stopping needle |
| CN105726121A (en) * | 2016-02-02 | 2016-07-06 | 四川大学华西医院 | Sleeve loading type multi-gap electromagnetic hemostatic needle |
| WO2017133024A1 (en) * | 2016-02-02 | 2017-08-10 | 四川大学华西医院 | Multi-opening electromagnetic hemostat needle mounted on cannula |
| CN108201468A (en) * | 2018-02-08 | 2018-06-26 | 南京康友医疗科技有限公司 | A kind of microwave melt needle with antenna module |
| CN113100927A (en) * | 2021-04-08 | 2021-07-13 | 电子科技大学 | Novel directional microwave ablation antenna based on substrate integrated coaxial cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777396A (en) * | 2003-04-24 | 2006-05-24 | 全明基 | Electrode for radiofrequency tissue ablation |
| CN1784183A (en) * | 2003-03-26 | 2006-06-07 | 悉尼科技大学 | A microwave antenna for medical ablation |
| US20120259328A1 (en) * | 2009-02-20 | 2012-10-11 | Vivant Medical, Inc. | Leaky-Wave Antennas for Medical Applications |
| CN103025261A (en) * | 2010-06-24 | 2013-04-03 | 艾姆西森有限公司 | Enhanced ablation apparatus |
| CN204600677U (en) * | 2014-12-29 | 2015-09-02 | 四川大学华西医院 | Many slot electromagnetic melt cutter |
-
2014
- 2014-12-29 CN CN201410837034.6A patent/CN104490470B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1784183A (en) * | 2003-03-26 | 2006-06-07 | 悉尼科技大学 | A microwave antenna for medical ablation |
| CN1777396A (en) * | 2003-04-24 | 2006-05-24 | 全明基 | Electrode for radiofrequency tissue ablation |
| US20120259328A1 (en) * | 2009-02-20 | 2012-10-11 | Vivant Medical, Inc. | Leaky-Wave Antennas for Medical Applications |
| CN103025261A (en) * | 2010-06-24 | 2013-04-03 | 艾姆西森有限公司 | Enhanced ablation apparatus |
| CN204600677U (en) * | 2014-12-29 | 2015-09-02 | 四川大学华西医院 | Many slot electromagnetic melt cutter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520782A (en) * | 2016-02-02 | 2016-04-27 | 四川大学华西医院 | Water-cooled electromagnetic bleeding-stopping needle |
| CN105726121A (en) * | 2016-02-02 | 2016-07-06 | 四川大学华西医院 | Sleeve loading type multi-gap electromagnetic hemostatic needle |
| WO2017133024A1 (en) * | 2016-02-02 | 2017-08-10 | 四川大学华西医院 | Multi-opening electromagnetic hemostat needle mounted on cannula |
| CN105520782B (en) * | 2016-02-02 | 2018-05-29 | 四川大学华西医院 | A kind of water-cooled electromagnetism hemostatic needle |
| CN108201468A (en) * | 2018-02-08 | 2018-06-26 | 南京康友医疗科技有限公司 | A kind of microwave melt needle with antenna module |
| CN113100927A (en) * | 2021-04-08 | 2021-07-13 | 电子科技大学 | Novel directional microwave ablation antenna based on substrate integrated coaxial cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104490470B (en) | 2016-10-19 |
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Inventor after: Feng Xi Inventor after: Li Bo Inventor after: Lin Xianqi Inventor after: Wei Yonggang Inventor after: Wang Wentao Inventor after: Liu Wangmao Inventor before: Feng Xi Inventor before: Li Bo Inventor before: Lin Xianqi Inventor before: Wei Yonggang Inventor before: Wang Wentao |
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