CN208598511U - A kind of radio frequency ablation needle - Google Patents
A kind of radio frequency ablation needle Download PDFInfo
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- CN208598511U CN208598511U CN201820254252.0U CN201820254252U CN208598511U CN 208598511 U CN208598511 U CN 208598511U CN 201820254252 U CN201820254252 U CN 201820254252U CN 208598511 U CN208598511 U CN 208598511U
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- needle
- cable
- negative electrode
- electrode tab
- radio frequency
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Abstract
The utility model discloses a kind of radio frequency ablation needles comprising positive syringe needle, the outer needle tubing of insulation, negative electrode tab and the second RF 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 electrode tab is by mounting hole tight；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 electrode tab, and the second end of the second RF 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 formed into a loop via the first RF cable, positive syringe needle, human foci area, negative electrode tab and the second radio-frequency cable, realizes ablation.The radio frequency ablation needle can form power circuit in use, avoid preventing from damaging human skin because of negative plate heating during surgery using negative plate.
Description
Technical field
The utility model relates to technical field of medical equipment, more specifically to a kind of radio frequency ablation needle.
Background technique
RF ablation is a kind of diagnosis and treatment mode that minimally-invasive treatment is carried out using radio frequency ablation needle, can be used for tumour or ridge
Column.In surgical procedure, need for radio frequency ablation needle to be inserted into lesions position, and bind negative plate 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 melt to lesion tissue magnetic can be obtained using magnetic resonance equipment scanning lesion tissue
Resonance image judges the degree of ablation, and lesion is melted completely during guaranteeing 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 of negative plate heating during surgery
Urgent problem to be solved.
Utility model content
In view of this, the present invention provides a kind of radio frequency ablation needles to be capable of forming power circuit with negative electrode tab,
It avoids preventing from damaging human skin because of negative plate heating during surgery using negative plate.
To achieve the above object, the utility model provides the following technical solutions:
A kind of radio frequency ablation needle, including
Positive syringe needle；
Insulate outer needle tubing, and the anode syringe needle is 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 electrode tab, the negative electrode tab 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 electrode tab, 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
Include cannula body and the insulating layer that the cannula body outer surface is set；The anode syringe needle and the fixed company of the cannula body
It connects.
Preferably, in above-mentioned radio frequency ablation needle, the anode syringe needle is an integral structure with the cannula body.
It 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 electrode tab temperature sensing
Device, and the medium temperature of the middle position that both the syringe needle temperature sensor and negative electrode tab temperature sensor is arranged in pass
Sensor.
Preferably, in above-mentioned radio frequency ablation needle, the temperature sensor is made of T-type thermocouple wire, and the insulation
Teflon conduit is enclosed with for assembling the position of the temperature sensor in outer needle tubing and the positive syringe needle.
Preferably, in above-mentioned radio frequency ablation needle, the negative electrode tab is copper negative electrode tab.
The utility model provides a kind of radio frequency ablation needle comprising positive syringe needle, the outer needle tubing of insulation, negative electrode tab and second are penetrated
Frequency 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 electrode tab is by mounting hole
Tight；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 electrode tab, the
The second end of two RF cables 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 electrode tab and the second radio-frequency cable forming circuit, realize ablation.
Obviously, radio frequency ablation needle provided by the utility model can form power circuit in use, avoid using cathode
Plate prevents from damaging human skin because of negative plate heating during surgery.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of radio frequency ablation needle provided by the embodiment of the utility model；
Wherein, in figure 1 above:
Syringe needle temperature sensor 101；Insulate outer needle tubing 102；Negative electrode tab 103；First RF cable 104；Second radio frequency line
Cable 105；Temperature measuring wire 106；Negative electrode tab temperature sensor 107；Medium temperature sensor 108；Positive syringe needle 109.
Specific embodiment
The utility model embodiment discloses a kind of radio frequency ablation needle, with negative electrode tab, is capable of forming power circuit, keeps away
Exempt to prevent from damaging human skin because of negative plate heating during surgery using negative plate.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of radio frequency ablation needle comprising positive syringe needle 109, insulation are outer
Needle tubing 102, negative electrode tab 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, absolutely
The second end of the outer needle tubing 102 of edge is equipped with the first RF cable 104；First radio-frequency cable is electrically connected with positive syringe needle 109；Insulation
The predetermined position of outer needle tubing 102 is equipped with mounting hole；Negative electrode tab 103 is by mounting hole tight；Second RF cable 105 is located at
It insulate in outer needle tubing 102, and the first end of the second RF cable 105 is electrically connected with negative electrode tab 103, the second RF cable 105
Second 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 electrode tab 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 set in a radio frequency ablation needle
Have anode, and be equipped with cathode), power circuit can be formed in use, avoid preventing during surgery using negative plate because of cathode
Plate heats up and damages human skin.
Specifically, positive syringe needle 109 is carbon fiber anode syringe needle 109 in radio frequency ablation needle provided by the above embodiment；Absolutely
The outer needle tubing 102 of edge includes cannula body and the insulating layer that cannula body outer surface is arranged in；Positive syringe needle 109 and cannula body are solid
Fixed connection.Above-mentioned negative electrode tab 103 is copper negative electrode tab, it is preferred to use red copper negative electrode tab, it is more excellent to use T2 red copper negative electrode tab.
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 electrode tab 103 is set as copper negative electrode tab, utilizes the high conductivity of carbon fibre material and copper product
With it is nonmagnetic, guarantee that radio frequency ablation needle not will receive the interference of 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 electrode tab 103 and the outer needle tubing that insulate
It insulate between 102, i.e., negative electrode tab 103 and cannula body insulate.
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, temperature when being melted for real-time measurement, so that user judges the process of ablation.
Specifically, above-mentioned temperature sensor is three, including syringe needle temperature sensor 101, negative electrode tab temperature sensor
107, and the intermediate temperature of the middle position of both syringe needle temperature sensor 101 and negative electrode tab temperature sensor 107 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 guarantee that temperature sensor not will receive in 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 102 of insulation 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.The pre- of mounting hole is set on the outer needle tubing 102 of insulation
If position is at the position apart from needle point 2cm.Above-mentioned negative electrode tab 103 is copper ring structure, width 5mm.
RF ablation needle construction provided by the embodiment of the utility model is simple, manufacture easy to produce, and production cost is low.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of radio frequency ablation needle, which is characterized in that including
Positive syringe needle；
Insulate outer needle tubing, and the anode syringe needle is fixed on the first end of the outer needle tubing of the insulation, the second of needle tubing outside the insulation
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 electrode tab, the negative electrode tab 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 electrode tab, 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 that the cannula body outer surface is arranged in；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 it 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 electrode tab temperature sensor, and the centre that both the syringe needle temperature sensor and negative electrode tab temperature sensor are set
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 Teflon is enclosed with for assembling the position of the temperature sensor in the outer needle tubing of the insulation and the positive syringe needle
Imperial conduit.
7. radio frequency ablation needle according to claim 1, which is characterized in that the negative electrode tab is copper negative electrode tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254252.0U CN208598511U (en) | 2018-02-12 | 2018-02-12 | A kind of radio frequency ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254252.0U CN208598511U (en) | 2018-02-12 | 2018-02-12 | A kind of radio frequency ablation needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208598511U true CN208598511U (en) | 2019-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254252.0U Active CN208598511U (en) | 2018-02-12 | 2018-02-12 | A kind of radio frequency ablation needle |
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| CN (1) | CN208598511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309437A (en) * | 2018-02-12 | 2018-07-24 | 安徽大中润科技有限公司 | Radio frequency ablation needle |
| CN110448359A (en) * | 2019-08-02 | 2019-11-15 | 中国人民解放军总医院 | Improve operation navigation device and its application of transjugular intrahepatic portosystemic shunt success rate |
-
2018
- 2018-02-12 CN CN201820254252.0U patent/CN208598511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309437A (en) * | 2018-02-12 | 2018-07-24 | 安徽大中润科技有限公司 | Radio frequency ablation needle |
| CN110448359A (en) * | 2019-08-02 | 2019-11-15 | 中国人民解放军总医院 | Improve operation navigation device and its application of transjugular intrahepatic portosystemic shunt success rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190816 Address after: Room 502, 34 655 Floor, Hehuan Road, Hefei High-tech Zone, Anhui Province Patentee after: Hefei Fusheng Medical Science and Technology Partnership (General Partnership) Address before: 230031 Embedded R&D Building 204-B3, Institute of Advanced Technology, China University of Science and Technology, No. 5089 Wangjiangxi Road, Hefei High-tech Zone, Anhui Province Patentee before: Anhui Fuqing Medical Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220310 Address after: 230000 building C5, national health big data Industrial Park, southwest corner of Xiyou road and kongtai Road, high tech Zone, Hefei, Anhui Province Patentee after: ANHUI SHUOJIN MEDICAL EQUIPMENT Co.,Ltd. Address before: 230088 Room 502, 5 / F, 34 Hehuan Road, high tech Zone, Hefei, Anhui Province Patentee before: Hefei Fusheng Medical Science and Technology Partnership (General Partnership) |
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| TR01 | Transfer of patent right |