CN108309437A - Radio frequency ablation needle - Google Patents
Radio frequency ablation needle Download PDFInfo
- Publication number
- CN108309437A CN108309437A CN201810145018.9A CN201810145018A CN108309437A CN 108309437 A CN108309437 A CN 108309437A CN 201810145018 A CN201810145018 A CN 201810145018A CN 108309437 A CN108309437 A CN 108309437A
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- CN
- China
- Prior art keywords
- needle
- radio frequency
- negative plate
- insulation
- temperature sensor
- 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.)
- Pending
Links
- 238000007674 radiofrequency ablation Methods 0.000 title claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000002679 ablation Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 7
- 238000001356 surgical procedure Methods 0.000 description 7
- 230000003902 lesion Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a radio frequency ablation needle which comprises a positive needle head, an insulating outer needle tube, a negative plate and a second radio frequency cable, wherein the positive needle head is fixed at the first end of the insulating outer needle tube; the first radio frequency cable is electrically communicated with the positive needle head; a mounting hole is formed in a preset position of the insulating outer needle tube; the negative plate is tightly wrapped by the mounting hole; the second radio frequency cable is located in the insulating outer needle tube, a first end of the second radio frequency cable is electrically connected with the negative pole piece, and a second end of the second radio frequency cable extends out of a second end of the insulating outer needle tube. When the ablation device is used, the positive needle penetrates through human tissues to reach a focus area, and radio frequency current forms a loop through the first radio frequency cable, the positive needle, the human focus area, the negative plate and the second radio frequency cable to realize ablation. The radio frequency ablation needle can form an electrifying loop in use, avoids the application of a negative plate, and prevents the skin of a human body from being damaged due to the temperature rise of the negative plate in an operation.
Description
Technical field
The present invention relates to technical field of medical equipment, more specifically to a kind of radio frequency ablation needle.
Background technology
RF ablation is a kind of diagnosis and treatment mode carrying out minimally-invasive treatment using radio frequency ablation needle, can be used for tumour or ridge
Column.In surgical procedure, need radio frequency ablation needle being inserted into lesions position, and negative plate is bound in patients back, such circuit is logical
The RF energy crossed makes tissue oscillation heating, and irreversible necrosis occurs for lesion, to achieve the purpose that ablation.
But negative plate also has a degree of heating in surgical procedure, can cause to damage to the skin of human body.
In addition, in order to accurately be melted to lesion tissue, magnetic resonance equipment scanning lesion tissue may be used and obtain magnetic
Resonance image judges the degree of ablation, and lesion is melted completely during ensureing ablation, and reduces normal group as far as possible
The damage knitted.But the material of existing radio frequency ablation needle is mostly metal material, and magnetism is larger, is unsuitable for making in magnetic resonance environment
With.
It is those skilled in the art in conclusion how to avoid damaging human skin because negative plate heats up during surgery
Urgent problem to be solved.
Invention content
In view of this, a kind of radio frequency ablation needle of present invention offer can form power circuit, avoid with negative plate
Using negative plate, prevent from damaging human skin because negative plate heats up during surgery.
To achieve the above object, the present invention provides the following technical solutions：
A kind of radio frequency ablation needle, including
Positive syringe needle；
The outer needle tubing of insulation, the anode syringe needle are fixed on the first end of the outer needle tubing of the insulation, the outer needle tubing of the insulation
Second end is equipped with the first RF cable；First radio-frequency cable is electrically connected with the positive syringe needle；The outer needle tubing of the insulation
Predetermined position be equipped with mounting hole；
Negative plate, the negative plate is by mounting hole tight；
Second RF cable, second RF cable is located in the outer needle tubing of the insulation, and second RF cable
First end be electrically connected with the negative plate, second end by outside the insulation needle tubing second end stretch out.
Preferably, in above-mentioned radio frequency ablation needle, the anode syringe needle is carbon fiber anode syringe needle；The outer needle tubing packet of the insulation
It includes cannula body and the insulating layer in the cannula body outer surface is set；The anode syringe needle is fixed with the cannula body to be connected
It connects.
Preferably, in above-mentioned radio frequency ablation needle, the anode syringe needle is an integral structure with the cannula body.
Preferably, further include temperature sensor in above-mentioned radio frequency ablation needle, the temperature sensor is multiple, and is distributed
Needle tubing and the positive needle wall outside the insulation.
Preferably, in above-mentioned radio frequency ablation needle, the temperature sensor packet syringe needle temperature sensor, negative plate temperature sensing
Device, and the medium temperature being arranged in the middle position of both the syringe needle temperature sensor and negative plate temperature sensor pass
Sensor.
Preferably, in above-mentioned radio frequency ablation needle, the temperature sensor is made of T-type thermocouple wire, and the insulation
In outer needle tubing and the positive syringe needle Teflon conduit is enclosed with for assembling the position of the temperature sensor.
Preferably, in above-mentioned radio frequency ablation needle, the negative plate is copper negative plate.
The present invention provides a kind of radio frequency ablation needle comprising positive syringe needle, the outer needle tubing of insulation, negative plate and the second radio frequency line
Cable, positive syringe needle are fixed on the first end for the outer needle tubing that insulate, and the second end for the outer needle tubing that insulate is equipped with the first RF cable；First
Radio-frequency cable is electrically connected with positive syringe needle；The predetermined position of the outer needle tubing of insulation is equipped with mounting hole；Negative plate is close by mounting hole
Package；Second RF cable, which is located at, to insulate in outer needle tubing, and the first end of the second RF cable is electrically connected with negative plate, and second penetrates
The second end of frequency cable is stretched out by the second end for the outer needle tubing that insulate.
In application, positive syringe needle, which punctures tissue, reaches focal zone, radio-frequency current is via the first RF cable, positive needle
Head, human foci area, negative plate and the second radio-frequency cable forming circuit, realize ablation.
Obviously, radio frequency ablation needle provided by the invention can form power circuit in use, avoid applying negative plate, prevent
Only human skin is damaged because negative plate heats up during surgery.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of radio frequency ablation needle provided in an embodiment of the present invention；
Wherein, in figure 1 above：
Syringe needle temperature sensor 101；Insulate outer needle tubing 102；Negative plate 103；First RF cable 104；Second radio frequency line
Cable 105；Temperature measuring wire 106；Negative plate temperature sensor 107；Medium temperature sensor 108；Positive syringe needle 109.
Specific implementation mode
The embodiment of the invention discloses a kind of radio frequency ablation needles can form power circuit with negative plate, avoid adopting
With negative plate, prevent from damaging human skin because negative plate heats up during surgery.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of radio frequency ablation needle comprising positive syringe needle 109, the outer needle tubing of insulation
102, negative plate 103 and the second RF cable 105, positive syringe needle 109 are fixed on the first end for the outer needle tubing 102 that insulate, and insulation is outer
The second end of needle tubing 102 is equipped with the first RF cable 104；First radio-frequency cable is electrically connected with positive syringe needle 109；The outer needle of insulation
The predetermined position of pipe 102 is equipped with mounting hole；Negative plate 103 is by mounting hole tight；Second RF cable 105 is located at insulation
In outer needle tubing 102, and the first end of the second RF cable 105 is electrically connected with negative plate 103, and the second of the second RF cable 105
End is stretched out by the second end for the outer needle tubing 102 that insulate.
In application, positive syringe needle 109, which punctures tissue, reaches focal zone, radio-frequency current via the first RF cable 104,
Positive syringe needle 109, human foci area, negative plate 103 and the second radio-frequency cable forming circuit, realize ablation.
Obviously, there is radio frequency ablation needle provided in this embodiment single needle multi-polar structure (i.e. both to be set in a radio frequency ablation needle
Have anode, and be equipped with cathode), power circuit can be formed in use, avoided applying negative plate, be prevented during surgery because of cathode
Plate heats up and damages human skin.
Specifically, in the radio frequency ablation needle that above-described embodiment provides, positive syringe needle 109 is carbon fiber anode syringe needle 109；Absolutely
The outer needle tubing 102 of edge includes cannula body and the insulating layer in cannula body outer surface is arranged；Positive syringe needle 109 is solid with cannula body
Fixed connection.Above-mentioned negative plate 103 is copper negative plate, it is preferred to use red copper negative plate, it is more excellent to use T2 red copper negative plates.
In radio frequency ablation needle provided in this embodiment, carbon fiber material is respectively adopted in positive syringe needle 109 and the outer needle tubing 102 that insulate
Material is used as rapidoprint, meanwhile, negative plate 103 is set as copper negative plate, utilizes the high conductivity of carbon fibre material and copper product
With it is nonmagnetic, ensure radio frequency ablation needle will not be interfered by metal artifacts during magnetic resonance imaging.Meanwhile carbon fiber material
Material has high rigidity, ensure that the radio frequency ablation needle will not bend during puncture and influence the effect of ablation.
Preferably, in above-mentioned radio frequency ablation needle, positive syringe needle 109 is an integral structure with cannula body.It is arranged in needle tubing
The insulating layer of body outer surface is the teflon material layer for the outer surface for being sprayed on cannula body, and wall thickness may be configured as
0.4mm。
In radio frequency ablation needle as above, the first RF cable 104 is electrically connected by cannula body with positive syringe needle 109, and first
RF cable 104 passes through the nonmagnetic inside led silver-colored electric glue and be fixed on cannula body.Above-mentioned negative plate 103 and the outer needle tubing that insulate
It insulate between 102, i.e., negative plate 103 insulate with cannula body.
Preferably, above-mentioned radio frequency ablation needle further includes temperature sensor, and temperature sensor is multiple, and it is outer to be distributed in insulation
Inside needle tubing 102 and positive syringe needle 109, for measuring temperature when ablation in real time, so that user judges the process of ablation.
Specifically, above-mentioned temperature sensor is three, including syringe needle temperature sensor 101, negative plate temperature sensor
107, and the intermediate temperature in the middle position of 107 the two of syringe needle temperature sensor 101 and negative plate temperature sensor is set
Spend sensor 108.
Above-mentioned temperature sensor is made of T-type thermocouple wire, and is used in insulate outer needle tubing 102 and positive syringe needle 109
The position of fitting temperature sensor is enclosed with Teflon conduit respectively, to ensure that temperature sensor will not be by the process of thermometric
The interference of radio-frequency current.
The temperature measuring wire 106 of above-mentioned temperature sensor stretches out the outer needle tubing 102 that insulate via the second end for the outer needle tubing 102 that insulate
Except.
The length of radio frequency ablation needle as above may be configured as 15cm；The outer diameter of the outer needle tubing of insulation 102 is set as 2.45mm, interior warp
It is set as 2mm；The length of positive syringe needle 109 is set as 5mm, and the needle point of positive syringe needle 109 may be configured as being surrounded by multiple inclined-planes
Pyramid-shaped, certainly can also be other shapes, the present embodiment does not limit.Setting mounting hole is pre- on the outer needle tubing 102 of insulation
If position is at the position of needle point 2cm.Above-mentioned negative plate 103 is copper ring structure, width 5mm.
Radio frequency ablation needle provided in an embodiment of the present invention is simple in structure, manufacture easy to produce, and production cost is low.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (7)
1. a kind of radio frequency ablation needle, which is characterized in that including
Positive syringe needle；
The outer needle tubing of insulation, the anode syringe needle are fixed on the first end of the outer needle tubing of the insulation, the insulation outside needle tubing second
End is equipped with the first RF cable；First radio-frequency cable is electrically connected with the positive syringe needle；Needle tubing is pre- outside the insulation
If being equipped with mounting hole at position；
Negative plate, the negative plate is by mounting hole tight；
Second RF cable, second RF cable are located in the outer needle tubing of the insulation, and the of second RF cable
One end is electrically connected with the negative plate, and second end is stretched out by the second end of needle tubing outside the insulation.
2. radio frequency ablation needle according to claim 1, which is characterized in that the anode syringe needle is carbon fiber anode syringe needle；
The outer needle tubing of the insulation includes cannula body and the insulating layer in the cannula body outer surface is arranged；The anode syringe needle and institute
Cannula body is stated to be fixedly connected.
3. radio frequency ablation needle according to claim 2, which is characterized in that the anode syringe needle is one with the cannula body
Body formula structure.
4. radio frequency ablation needle according to claim 1, which is characterized in that further include temperature sensor, the temperature sensing
Device is multiple, and is distributed in the outer needle tubing of the insulation and the positive needle wall.
5. radio frequency ablation needle according to claim 4, which is characterized in that the temperature sensor packet syringe needle temperature sensing
Device, negative plate temperature sensor, and be arranged in the centre of both the syringe needle temperature sensor and negative plate temperature sensor
Medium temperature sensor at position.
6. radio frequency ablation needle according to claim 4 or 5, which is characterized in that the temperature sensor is by T-type thermocouple wire
Composition, and in the outer needle tubing of the insulation and the positive syringe needle Teflon is enclosed with for assembling the position of the temperature sensor
Imperial conduit.
7. radio frequency ablation needle according to claim 1, which is characterized in that the negative plate is copper negative plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145018.9A CN108309437A (en) | 2018-02-12 | 2018-02-12 | Radio frequency ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145018.9A CN108309437A (en) | 2018-02-12 | 2018-02-12 | Radio frequency ablation needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108309437A true CN108309437A (en) | 2018-07-24 |
Family
ID=62903562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810145018.9A Pending CN108309437A (en) | 2018-02-12 | 2018-02-12 | Radio frequency ablation needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108309437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115399869A (en) * | 2022-11-02 | 2022-11-29 | 杭州维纳安可医疗科技有限责任公司 | Ablation needle, processing technology, ablation system and using method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398683A (en) * | 1991-05-24 | 1995-03-21 | Ep Technologies, Inc. | Combination monophasic action potential/ablation catheter and high-performance filter system |
| CN102228392A (en) * | 2011-06-27 | 2011-11-02 | 北京畅想天行医疗技术有限公司 | Radio-frequency ablation electrode needle |
| CN102458289A (en) * | 2009-06-09 | 2012-05-16 | 友和安股份公司 | Direction-controllable electrode body for selectively removing bodily tissue, and guide pipe |
| CN102933167A (en) * | 2010-01-26 | 2013-02-13 | 太雄医疗器株式会社 | Electrode needle and hemostatic device including the same |
| EP2626021A1 (en) * | 2012-02-10 | 2013-08-14 | Myong-Ki Jun | Electrode tip for radiofrequency tissue ablation and electrode having the same |
| CN103957979A (en) * | 2011-11-29 | 2014-07-30 | 皇家飞利浦有限公司 | Tube for being introduced into an object |
| CN208598511U (en) * | 2018-02-12 | 2019-03-15 | 安徽福晴医疗科技有限公司 | A kind of radio frequency ablation needle |
-
2018
- 2018-02-12 CN CN201810145018.9A patent/CN108309437A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398683A (en) * | 1991-05-24 | 1995-03-21 | Ep Technologies, Inc. | Combination monophasic action potential/ablation catheter and high-performance filter system |
| CN102458289A (en) * | 2009-06-09 | 2012-05-16 | 友和安股份公司 | Direction-controllable electrode body for selectively removing bodily tissue, and guide pipe |
| CN102933167A (en) * | 2010-01-26 | 2013-02-13 | 太雄医疗器株式会社 | Electrode needle and hemostatic device including the same |
| CN102228392A (en) * | 2011-06-27 | 2011-11-02 | 北京畅想天行医疗技术有限公司 | Radio-frequency ablation electrode needle |
| CN103957979A (en) * | 2011-11-29 | 2014-07-30 | 皇家飞利浦有限公司 | Tube for being introduced into an object |
| EP2626021A1 (en) * | 2012-02-10 | 2013-08-14 | Myong-Ki Jun | Electrode tip for radiofrequency tissue ablation and electrode having the same |
| CN208598511U (en) * | 2018-02-12 | 2019-03-15 | 安徽福晴医疗科技有限公司 | A kind of radio frequency ablation needle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115399869A (en) * | 2022-11-02 | 2022-11-29 | 杭州维纳安可医疗科技有限责任公司 | Ablation needle, processing technology, ablation system and using method thereof |
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