CN108245248A - Radio frequency ablation needle - Google Patents
Radio frequency ablation needle Download PDFInfo
- Publication number
- CN108245248A CN108245248A CN201810251571.0A CN201810251571A CN108245248A CN 108245248 A CN108245248 A CN 108245248A CN 201810251571 A CN201810251571 A CN 201810251571A CN 108245248 A CN108245248 A CN 108245248A
- Authority
- CN
- China
- Prior art keywords
- needle
- radio frequency
- frequency ablation
- needle tubing
- tubing
- 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
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
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
-
- 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
- A61B18/1477—Needle-like probes
-
- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00107—Coatings on the energy applicator
Abstract
The invention discloses a radio frequency ablation needle, which comprises a needle tube and a needle head; the needle head is fixed at the front end of the needle tube and seals the front end of the needle tube; wherein, the outer surface of the needle tube is sprayed with an insulating layer. In the radio frequency ablation needle, the outer surface of the needle tube is coated with the insulating layer without a gap, and compared with the radio frequency ablation needle in which the insulating sleeve is sleeved outside the needle tube in the prior art, the outer diameter of the whole radio frequency ablation needle can be reduced, so that the wound of a patient is reduced.
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 that minimally-invasive treatment is carried out using radio frequency ablation needle, can be used for tumour or ridge
Column.In surgical procedure, radio frequency ablation needle is inserted into lesions position, and bind negative plate in patients back to form loop current,
Radio frequency ablation needle, which sends out rf wave, to be made the ion phase mutual friction in surrounding tissue and collides and heat production with other particles, works as tissue
Cell generates irreversibility necrosis when temperature is more than 60 DEG C, achievees the purpose that ablation.But in existing radio frequency ablation needle, needle
Pipe external demand is arranged insulating sleeve, and there are gaps between the two, increase the outer diameter of radio frequency ablation needle, increase the wound to patient.
In addition, the frictional resistance that needle tubing outer diameter makes greatly needle tubing is big, it is unfavorable for inserting needle in surgical procedure.
Furthermore 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, and reduce normal group as far as possible completely during ensureing ablation
The damage knitted, and existing radio frequency ablation needle is made of magnetic big metal material, is unsuitable for using in magnetic resonance environment.
It is people in the art to mitigate its wound to patient in conclusion how to reduce the outer diameter of radio frequency ablation needle
Member's urgent problem to be solved.
Invention content
In view of this, a kind of radio frequency ablation needle of present invention offer, the outer surface spray applied insulation of needle tubing, between the two continuously
Gap, conducive to the outer diameter of radio frequency ablation needle is reduced, and then mitigate the wound to user.
To achieve the above object, the present invention provides following technical solution：
A kind of radio frequency ablation needle, including：
Needle tubing；
Syringe needle, the syringe needle are fixed on the front end of the needle tubing, and block the front end of the needle tubing；
Wherein, the outer surface of the needle tubing is coated with insulating layer.
Preferably, in above-mentioned radio frequency ablation needle, the insulating layer is the insulating layer of preset thickness.
Preferably, in above-mentioned radio frequency ablation needle, the bare front end of the needle tubing.
Preferably, in above-mentioned radio frequency ablation needle, the length of the needle tubing bare front end is set as 1mm-30mm.
Preferably, in above-mentioned radio frequency ablation needle, the side wall of the needle tubing is equipped with water outlet；The water outlet is located at described
The front end of needle tubing, and with being connected inside the needle tubing.
Preferably, in above-mentioned radio frequency ablation needle, the water outlet is two, and the two is symmetrical arranged.
Preferably, in above-mentioned radio frequency ablation needle, the outer wall of the needle tubing is equipped with scale slot.
Preferably, in above-mentioned radio frequency ablation needle, the radio frequency ablation needle has handle, and the handle is fixed on the needle tubing
Tail end, and block the tail end of the needle tubing.
Preferably, in above-mentioned radio frequency ablation needle, the RF cable of the radio frequency ablation needle penetrate the handle and with it is described
Needle tubing is electrically connected；The water inlet pipe of the radio frequency ablation needle is passed through and the handle and is stretched into the needle tubing, for the needle tubing
Interior water filling or medicine company liquid.
Preferably, in above-mentioned radio frequency ablation needle, the needle tubing is titanium alloy needle tubing.
The embodiment of the present invention provides a kind of radio frequency ablation needle, including needle tubing and syringe needle；Syringe needle is fixed on the front end of needle tubing,
And block the front end of needle tubing；Wherein, the outer surface of needle tubing is coated with insulating layer.
In radio frequency ablation needle provided by the invention, the outer surface spray applied insulation of needle tubing, gapless between the two, compared to
The radio frequency ablation needle of insulating sleeve is set with outside needle tubing in the prior art, the outer diameter of entire radio frequency ablation needle can be reduced, so as to subtract
Gently to the wound of patient.
In addition, the outer diameter of above-mentioned radio frequency ablation needle is small, reduce the contact area with patient's tissue, rub conducive to reducing
Resistance, convenient for inserting needle in surgical procedure.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, 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
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of radio frequency ablation needle provided in an embodiment of the present invention；
Wherein, in Fig. 1：
Needle tubing 1；Syringe needle 11；Water outlet 12；Insulating layer 13；Thermocouple 2；Water inlet pipe 3；RF cable 41,42；Handle 5.
Specific embodiment
The embodiment of the invention discloses a kind of radio frequency ablation needle, the outer surface spray applied insulation of needle tubing, between the two continuously
Gap, conducive to the outer diameter of radio frequency ablation needle is reduced, and then mitigate the wound to user.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
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, including needle tubing 1 and syringe needle 11；Syringe needle 11 is solid
Due to the front end of needle tubing 1, and block the front end of needle tubing 1；Wherein, the outer surface of needle tubing 1 is coated with insulating layer 13.
In radio frequency ablation needle provided in this embodiment, the outer surface of needle tubing 1 is coated with insulating layer 13, between the two continuously
Gap is set with the radio frequency ablation needle of insulating sleeve compared with the prior art outside middle needle tubing 1, can reduce the outer of entire radio frequency ablation needle
Diameter, so as to mitigate the wound to patient.
In addition, the outer diameter of above-mentioned radio frequency ablation needle is small, reduce the contact area with patient's tissue, rub conducive to reducing
Resistance, convenient for inserting needle in surgical procedure.
Meanwhile above-mentioned insulating layer 13 is set to via spraying method outside needle tubing, conducive to smaller thickness, energy is set as
Enough outer diameters for further reducing radio frequency ablation needle.
Specifically, insulating layer 13 is the insulating layer 13 of preset thickness, which may be configured as 0.20mm-0.30mm,
It is preferably arranged to 0.25mm.Insulating layer 13 is set as Teflon layer, has not only ensured to insulate, but also tissue in ablation procedure is avoided to be bonded in
RF ablation wire surface.
In order to form the RF ablation area of suitable dimension and shape, the bare front end of above-mentioned needle tubing 1, i.e. not spray applied insulation
13, as conductive electrode.The exposed length of 1 front end of needle tubing can be arranged as required to during specific preparation, to obtain required radio frequency
Zone of ablation.The range of the exposed length of 1 front end of needle tubing is set as 1mm-30mm.As above syringe needle 11 is set as solid conical shape,
Not only its electric conductivity had been enhanced, but also convenient for being punctured in operation.
In above-mentioned radio frequency ablation needle, the side wall of needle tubing 1 is equipped with water outlet 12, and water outlet 12 is located at the front end of needle tubing 1, and
It is connected with 1 inside of needle tubing.In application, the water inlet pipe 3 of radio frequency ablation needle water filling or liquid into needle tubing 1, water or liquid are via needle
Pipe 1 and water outlet 12 are discharged, and both effectively prevent carbonized, are also effectively reduced the temperature of needle tubing 1, are avoided calcination normal structure.
Furthermore the radio frequency ablation needle only needs setting water inlet pipe 3, saves outlet pipe, simplifies structure, manufacture easy to produce.
Water outlet 12 is preferably arranged to two, and two water outlets 12 are symmetrical arranged on needle tubing 1.Before above-mentioned needle tubing 1
It holds in exposed scheme, water outlet 12 is located at the naked section of needle tubing 1.
For the ease of observing the piercing depth of above-mentioned radio frequency ablation needle, the outer wall setting scale slot of needle tubing 1.The scale slot
Starting point is the top point of syringe needle 11.Specifically, by starting point, monocyclic scale slot is set every 10mm, every 50mm, 100mm,
Bicyclic, tricyclic, Fourth Ring scale slot are set respectively at 150mm, according to expropriation and management 1 physical length, can also set five rings scale slot,
Six ring scale slots etc., the present embodiment does not limit.
As above radio frequency ablation needle is equipped with handle 5, facilitates user's hand-held.Handle 5 is fixed on the tail end of the needle tubing 1,
And the tail end of the needle tubing 1 is blocked, specific handle 5 wraps up the tail end of needle tubing 1.The RF cable 42 of radio frequency ablation needle penetrates handle
It 5 and is electrically connected with the tail end of needle tubing 1；The tail end of needle tubing 1 is exposed (i.e. non-spray applied insulation 13), to be electrically connected with RF cable 42
It connects；Above-mentioned handle 5 wraps up the exposed part of 1 tail end of needle tubing, and the specific exposed 1cm-2cm of the tail end of needle tubing 1.Radio frequency ablation needle
Water inlet pipe 3 pass through and handle 5 and stretch into needle tubing 1, for water filling or liquid into needle tubing 1；Water inlet pipe 3 is stretched into needle tubing 1
, so that the water and liquid of injection flow through entire needle tubing 1, cooling effect is improved close to the tail end of needle tubing 1 in end.Radio frequency ablation needle
The first end of thermocouple is fixedly connected with the handle 5, and second end is inserted into needle tubing 1 to syringe needle 11；At 2 first end of thermocouple
Conducting wire be pierced by handle 5 and be connected with RF cable 41.As above thermocouple 2 is preferably using the T-shaped thermocouple of no magnetic, surface spraying one
Layer insulation Teflon layer, and be inserted in teflon sleeve, teflon sleeve front end is sealed with glue, for preventing
Water.
In above-mentioned radio frequency ablation needle, the outer diameter of needle tubing 1 is set as 1.0mm-2.1mm, and internal diameter is set as 0.8mm-1.9mm,
The length of needle tubing 1 is set as 100mm-300mm；The length of syringe needle 11 is set as 1mm-10mm.Preferably, water outlet 12 is set as
Round hole, pore diameter range 0.1mm-0.6mm.
Specifically, above-mentioned is in the radio frequency ablation needle that embodiment provides, the outer diameter of needle tubing 1 is set as 1.2mm, and internal diameter is
1.0mm, total length 120mm；The length of syringe needle 11 is set as 3mm, and the length (i.e. electrode length) of 1 bare front end of needle tubing is
6mm.Water outlet 12 be round hole, aperture 0.2mm.Alternatively, the outer diameter of needle tubing 1 is set as 2.1mm, internal diameter 1.9mm, overall length
It spends for 170mm；11 length of syringe needle is 5mm, and 1 bare front end length (i.e. electrode length) of needle tubing is 10mm.Water outlet 12 is circle
Hole, aperture 0.4mm.Certainly, each size of radio frequency ablation needle may also be configured to other values, and the present embodiment does not limit.
Above-mentioned needle tubing 1 and syringe needle 11 are an integral structure.Needle tubing 1 is titanium alloy needle tubing, and syringe needle 11 is titanium alloy syringe needle, is had
There is good biomedical compatibility, and hardness is high, nonmagnetic, and above-mentioned thermocouple 2 is using the T-shaped thermocouple of no magnetic so that
The radio frequency ablation needle can use in magnetic resonance environment.
Radio frequency ablation needle provided in this embodiment is simple in structure, manufacture easy to produce, and easy to operate in application process.
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 professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (10)
1. a kind of radio frequency ablation needle, which is characterized in that including：
Needle tubing；
Syringe needle, the syringe needle are fixed on the front end of the needle tubing, and block the front end of the needle tubing；
Wherein, the outer surface of the needle tubing is coated with insulating layer.
2. radio frequency ablation needle according to claim 1, which is characterized in that the insulating layer is the insulating layer of preset thickness.
3. radio frequency ablation needle according to claim 1, which is characterized in that the bare front end of the needle tubing.
4. radio frequency ablation needle according to claim 3, which is characterized in that the length of the needle tubing bare front end is set as
1mm-30mm。
5. radio frequency ablation needle according to claim 1, which is characterized in that the side wall of the needle tubing is equipped with water outlet；Institute
The front end that water outlet is located at the needle tubing is stated, and with being connected inside the needle tubing.
6. radio frequency ablation needle according to claim 5, which is characterized in that the water outlet is two, and the two is symmetrically set
It puts.
7. radio frequency ablation needle according to claim 1, which is characterized in that the outer wall of the needle tubing is equipped with scale slot.
8. radio frequency ablation needle according to claim 1, which is characterized in that the radio frequency ablation needle has handle, the hand
Handle is fixed on the tail end of the needle tubing, and blocks the tail end of the needle tubing.
9. radio frequency ablation needle according to claim 8, which is characterized in that the RF cable of the radio frequency ablation needle penetrates institute
It states handle and is electrically connected with the needle tubing；The water inlet pipe of the radio frequency ablation needle passes through the handle and stretches into the needle tubing,
For the water filling into the needle tubing or medicine company liquid.
10. radio frequency ablation needle according to claim 1, which is characterized in that the needle tubing is titanium alloy needle tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251571.0A CN108245248A (en) | 2018-03-26 | 2018-03-26 | Radio frequency ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251571.0A CN108245248A (en) | 2018-03-26 | 2018-03-26 | Radio frequency ablation needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245248A true CN108245248A (en) | 2018-07-06 |
Family
ID=62747241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810251571.0A Pending CN108245248A (en) | 2018-03-26 | 2018-03-26 | Radio frequency ablation needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245248A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554314A (en) * | 2003-12-25 | 2004-12-15 | 上海交通大学 | Single needle water cooling type radio frequency ablation electrode |
| CN101209217A (en) * | 2006-12-26 | 2008-07-02 | 上海导向医疗***有限公司 | Gas throttling cooling type radio frequency ablation electrode |
| CN107822708A (en) * | 2017-11-30 | 2018-03-23 | 中国科学技术大学 | A kind of radio frequency ablation needle |
-
2018
- 2018-03-26 CN CN201810251571.0A patent/CN108245248A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554314A (en) * | 2003-12-25 | 2004-12-15 | 上海交通大学 | Single needle water cooling type radio frequency ablation electrode |
| CN101209217A (en) * | 2006-12-26 | 2008-07-02 | 上海导向医疗***有限公司 | Gas throttling cooling type radio frequency ablation electrode |
| CN107822708A (en) * | 2017-11-30 | 2018-03-23 | 中国科学技术大学 | A kind of radio frequency ablation needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102458290B (en) | Endoscopic surgical instrument | |
| JP6716249B2 (en) | Catheter with irrigated tip electrode having porous substrate and high density surface microelectrodes | |
| US9848932B2 (en) | Cool-tip thermocouple including two-piece hub | |
| US20110009856A1 (en) | Combination Radio Frequency Device for Electrosurgery | |
| KR102368801B1 (en) | Medical apparatus for fluid communication | |
| CA2532815A1 (en) | Thermal ablation of biological tissue | |
| WO2021135461A1 (en) | Detection mechanism, radio-frequency ablation catheter and radio-frequency ablation system | |
| US9168084B2 (en) | Brazed electrosurgical device | |
| CN112914721A (en) | Electrode device, medical catheter and ablation system | |
| US9782213B2 (en) | Overlapping bipolar electrode for high-frequency heat treatment | |
| CN111012485A (en) | Microwave ablation needle head and microwave ablation needle | |
| CN108245248A (en) | Radio frequency ablation needle | |
| CN208598511U (en) | A kind of radio frequency ablation needle | |
| WO2018040620A1 (en) | Radio frequency ablation electrode device | |
| CN217853277U (en) | Bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device | |
| CN203647465U (en) | Radiofrequency ablation electrode | |
| CN211674523U (en) | Radio frequency plasma scalpel | |
| CN104706419A (en) | Acupuncture needle type radio frequency electric needle | |
| CN1729944A (en) | Bipolar radio frequency knife | |
| CN107714102A (en) | Can be stopped blooding biopsy tool | |
| CN210019637U (en) | Magnetic compatible dipole microwave ablation needle | |
| CN108309437A (en) | Radio frequency ablation needle | |
| CN211300307U (en) | Microwave ablation needle head and microwave ablation needle | |
| CN201005695Y (en) | Diagnosis measuring mark and RF ablation electrode guiding-tube | |
| CN2845754Y (en) | Double polar radio frequency knife |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190215 Address after: 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 Applicant after: Anhui Fuqing Medical Technology Co., Ltd. Address before: Room 609-128, R&D Center Building, China (Hefei) International Intelligent Voice Industry Park, 3333 Xiyou Road, Hefei High-tech Zone, Anhui Province Applicant before: Anhui Dazhong Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190814 Address after: Room 502, 34 655 Floor, Hehuan Road, Hefei High-tech Zone, Anhui Province Applicant 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 Applicant before: Anhui Fuqing Medical Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220519 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 Applicant after: ANHUI SHUOJIN MEDICAL EQUIPMENT Co.,Ltd. Address before: 230088 Room 502, 5 / F, 34 Hehuan Road, high tech Zone, Hefei, Anhui Province Applicant before: Hefei Fusheng Medical Science and Technology Partnership (General Partnership) |
|
| TA01 | Transfer of patent application right |