CN2482390Y - Strong helical punching microwave radiating antenna - Google Patents
Strong helical punching microwave radiating antenna Download PDFInfo
- Publication number
- CN2482390Y CN2482390Y CN 01246474 CN01246474U CN2482390Y CN 2482390 Y CN2482390 Y CN 2482390Y CN 01246474 CN01246474 CN 01246474 CN 01246474 U CN01246474 U CN 01246474U CN 2482390 Y CN2482390 Y CN 2482390Y
- Authority
- CN
- China
- Prior art keywords
- antenna
- radiating end
- puncture
- outer conductor
- radiating
- 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
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Abstract
The utility model relates to the technical field of medical appliances, which is a high-intensity microwave radiating antenna for spiral helical puncture. The utility model comprises an antenna terminal 1, a rigid coaxial cable 2 and a radiating end 3, wherein the radiating end becomes hard because the radiating end adopts a ceramic tube as the insulative material, and the radiating end can be punctured the tumour and other treating parts; the outer conductor of the radiating end surrounds the external side of the ceramic tube spirally and is welded with an inner conductor, and the method enables the antenna to be heated into a sphere of 360 DEG in the tissue and enables the radiating end of the antenna to be inlaid with the tissue of a treated part to prevent the shift of the antenna during the treatment; a perfluoroethylene layer is sprayed on the antenna to prevent the adhesion of the radiating end and the necrotic tissue. The antenna does no need the guide of a puncturing needle, improves the effective acting diameter and enables the treatment to be convenient, safe and more effective.
Description
Technical field: this utility model relates to technical field of medical instruments, is a kind of direct percutaneous puncture antenna for radiating microwave of high strength helical shape that is used for the treatment of diseases such as the multiple position of human body tumor.
Background technology: the antenna for radiating microwave that is used for diseases such as percutaneous puncture in treating tumor at present, low-intensity because of the aerial radiation end, can't be directly with antenna for radiating microwave through positions such as skins directly puncture reach required therapentic part, must could arrive required therapentic part by the overcoat needle tubing guiding of puncturing.Its shortcoming is: 1. use the guiding of overcoat puncture needle tubing, the invalid functional diameter (FD) when both having increased the antenna for radiating microwave puncture has strengthened the damage chance to tissues such as puncture path blood vessel, nerves, has increased the complexity and the danger of operation again.Behind overcoat puncture needle tubing arrival treatment tumor locus, need to transfer to the needle tubing inner core change antenna for radiating microwave, retreat needle tubing again, expose the aerial radiation end.This process will take place hemorrhage inevitably, as is inserted into trunk massive hemorrhage will take place, if when finding that the inaccurate need in site of puncture are changed the position again or needed conversion treatment angle, transfers to antenna again, changes to the needle tubing inner core, adjusts the position and repeats said process again.This has just increased the difficulty and the danger of operation.In order to reduce to puncture to the damage of normal structure with guarantee the safety of performing the operation, used overcoat needle tubing can not be too thick, limited the effective diameter of microwave antenna like this, thereby antenna transmission power is low, loss is big, and therapeutic domain is little, can't satisfy and treat requirement clinically.3. puncture aerial radiation mode is used quarter-wave, monopole, dipole method etc. always, and its heating field radiation in tissue can only reach cylindrical or oval, and tumor tissues is 360 spheroidals mostly.The heat request that adds that this does not meet tumor can't satisfy situation about requiring when heating to treat focus in damage normal structure minimum and be issued to purpose the most effective, thorough, the safe treatment tumor.4. antenna is difficult for fixing after inserting tumor tissues, because of reasons such as breathing, position move cause antenna transposition or slippage, accidentally injures normal structure or adjacent organs sometimes.5. aerial radiation end easy and slough adhesion after heating to treat.
Summary of the invention: this utility model provides a kind of easy and simple to handle, safety, and effective diameter is big, and good effect can directly be punctured to the antenna for radiating microwave of therapentic part by human body soft tissue.The key of technical solutions of the utility model is:
1. improve the material of microwave antenna spoke side: change the dielectric material between the coaxial cable spoke side inner and outer conductor into high-intensity ceramic material by traditional flexible plastic, all soft tissues that spoke side hardness can be reached directly penetrate except that osseous tissue, thus the guiding of puncture needle tubing can be broken away from.
2. change the shape of antenna for radiating microwave spoke side: the spoke side outer conductor is used laser or be carved into the hurricane band of a fixing turn with other method, or tightly be surrounded on outside the earthenware by certain helix pitch with metal flat wire rod, with the terminal welding of inner wire, the end with spoke side is processed into the tip-like of being convenient to puncture then again.Like this, both be beneficial to puncture, again can insert between the tumor rear screw groove with organize incarceration, prevent slippage, play that automatically antenna is fixed on effect between the tumor body.And because aerial radiation end outer conductor is around in outside the earthenware twist, this method can make antenna microwave in tissue reach 360 ° of spheroidals, ellipse, cylindrical radiation.Can satisfy different tumor treatment requirements.
3. antenna sprays politef outward, but back and the adhesion of therapentic part slough are coagulated in solar heat protection.
4. strengthened the useful effect diameter of antenna.Because of no longer needing the guiding of overcoat puncture needle, so active antenna is done suitable overstriking.Can transmit higher microwave power like this, can reduce thermal losses again, enlarge the scope of heating to treat, more increase curative effect.
Description of drawings:
Fig. 1 is this utility model high strength helical shape puncture antenna for radiating microwave front view.
Fig. 2 is this utility model high strength helical shape puncture antenna for radiating microwave spoke side cutaway view.
The specific embodiment: now in conjunction with the accompanying drawings this utility model is described in detail:
This utility model comprises antenna terminal 1, rigid coaxial cable 2 and aerial radiation end 3 three parts.Antenna terminal 1, rigid coaxial cable 2 are identical with original antenna for radiating microwave.Spoke side 3 is by inner wire 4, outer conductor 5 and place the earthenware 6 between the inner and outer conductor to form.Inner wire 4 is the extension of the metal material in the rigid coaxial cable 2, at the partly long 1.6-2.5cm of spoke side, diameter 0.3-1.5mm, the diameter coupling of the internal diameter of earthenware 6 and inner wire 4, the internal diameter coupling of its external diameter and outer conductor 5, the long 1.6-2.5cm of spoke side outer conductor, internal diameter 1.6-4.6mm, external diameter 2-5mm, 2 consistent with rigid coaxial cable.The outer conductor 5 of spoke side part can be copper, aluminum or stainless steel tube and is carved into the spiral type ring-band shape with laser or other method and is surrounded on outside the earthenware 6, also available copper, aluminum or the coiling of rustless steel flat wire rod, clockwise or coiling counterclockwise all can, the ratio of bandwidth and groove width (being helix pitch) is 1: 1, the spiral number of turns is the 2-30 circle, the end of spoke side 3 with the end welding with outer conductor 5 of the end of inner wire 4, and is processed into tip-like 7 with stannum, copper or silver.Whole antenna surface spraying politef.
Embodiment 1:
Antenna terminal of the present utility model, rigid coaxial cable part is with original antenna for radiating microwave, rigid coaxial cable part 2 long 15cm, diameter 2mm, the long 2cm of spoke side inner wire, diameter 0.3mm, its outer earthenware 6 long 2.5cm that overlapped, internal diameter is 0.3mm, external diameter is 1.8mm, aerial radiation end outer conductor 5 usefulness stainless steel tubes are made, and tightly are enclosed within outside the earthenware 6, re-use laser and are carved into the spiral type ring-band shape, bandwidth 1.5mm, bandwidth and groove width ratio are 1: 1.Inner and outer conductor connects the formation short circuit in antenna end with silver soldering, and is processed into the beveled point shape.Antenna outer conductor external diameter is 2mm, and the spoke side helically coiling number of turns is 6 circles, and coiling is clockwise direction.Antenna sprays the politef thin layer outward.
Embodiment 2:
Antenna terminal of the present utility model, rigid coaxial cable part is with original antenna for radiating microwave, rigid coaxial cable part 2 long 15cm, diameter 5mm, the long 2.5cm of spoke side inner wire, diameter 1.5mm, its outer earthenware 6 long 3cm that overlapped, internal diameter is 1.5mm, external diameter is 4.6mm, aerial radiation end outer conductor 5 usefulness stainless steel tubes are made, and tightly are enclosed within outside the earthenware 6, re-use laser and are carved into the spiral type ring-band shape, bandwidth 1.5mm, bandwidth and groove width ratio are 1: 1.Inner and outer conductor connects the formation short circuit at the end of aerial radiation end with silver soldering, and is processed into the beveled point shape.Antenna outer conductor external diameter is 5mm, and the spoke side helically coiling number of turns is 8 circles.Coiling is clockwise direction.Antenna sprays the politef thin layer outward.
Claims (3)
1, a kind of high strength helical shape puncture antenna for radiating microwave, comprise antenna terminal (1), rigid coaxial cable (2) and aerial radiation end (3) three parts, it is characterized in that the insulant between aerial radiation end (3) inner wire and the outer conductor is an earthenware, inner wire and outer conductor are welded as a whole, and the end of spoke side is tip-like.
2, by the described high strength helical shape of claim 1 puncture antenna for radiating microwave, endless belt coat is outside earthenware twist to it is characterized in that the outer conductor of spoke side (3), and the ratio of bandwidth and helix pitch is 1:1.
3,, it is characterized in that helical ring zone circle number is the 2-30 circle by the described high strength helical shape puncture of claim 2 antenna for radiating microwave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246474 CN2482390Y (en) | 2001-07-12 | 2001-07-12 | Strong helical punching microwave radiating antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246474 CN2482390Y (en) | 2001-07-12 | 2001-07-12 | Strong helical punching microwave radiating antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482390Y true CN2482390Y (en) | 2002-03-20 |
Family
ID=33657490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246474 Expired - Fee Related CN2482390Y (en) | 2001-07-12 | 2001-07-12 | Strong helical punching microwave radiating antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482390Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110113833A (en) * | 2019-05-28 | 2019-08-09 | 中国电子科技集团公司第十二研究所 | A kind of microwave radiation heating antenna component |
| WO2021135610A1 (en) * | 2019-12-31 | 2021-07-08 | 华南理工大学 | Microwave ablation antenna based on spiral slit structure |
-
2001
- 2001-07-12 CN CN 01246474 patent/CN2482390Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110113833A (en) * | 2019-05-28 | 2019-08-09 | 中国电子科技集团公司第十二研究所 | A kind of microwave radiation heating antenna component |
| WO2021135610A1 (en) * | 2019-12-31 | 2021-07-08 | 华南理工大学 | Microwave ablation antenna based on spiral slit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |