CN107440785B - A kind of absorption type ablation catheter and ablating device - Google Patents
A kind of absorption type ablation catheter and ablating device Download PDFInfo
- Publication number
- CN107440785B CN107440785B CN201610380183.3A CN201610380183A CN107440785B CN 107440785 B CN107440785 B CN 107440785B CN 201610380183 A CN201610380183 A CN 201610380183A CN 107440785 B CN107440785 B CN 107440785B
- Authority
- CN
- China
- Prior art keywords
- horn
- ablation catheter
- absorption type
- electrode section
- lesion tissue
- 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.)
- Active
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
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00351—Heart
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
- A61B2018/00494—Stomach, intestines or bowel
-
- 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
-
- 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
- A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
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 kind of absorption type ablation catheter and ablating devices, wherein absorption type ablation catheter includes tube body and the electrode section that is connected with body distal end, is equipped with adsorption orifice with the junction of electrode section on tube body；Ablating device includes the absorption type ablation catheter of radio frequency source and above structure.The horn of absorption type ablation catheter and ablating device provided by the invention can effectively and reliably recline lesion tissue, can accurately control between electrode section and lesion tissue recline power and can accurate judgement recline degree, moreover it is possible to carry out superficial ablation.
Description
Technical field
The present invention relates to ablation field, in particular to a kind of absorption type ablation catheter and ablating device.
Background technique
By radio frequency ablation catheter electrode paste by pathological tissues in Catheter Interventional Therapy, electrode discharge RF energy with
Back pole plate forming circuit conducts Joule heat caused by electric current and biological tissue in electromagnetic field of high frequency by biological tissue's intermediate ion
The middle heat generated by dielectric loss increases the temperature of pathological tissues, because of the poor radiation of pathological tissues and to high temperature-sensitive
Sense, to reach therapeutic purposes.It needs to determine the degree that electrode and lesion tissue recline before being melted, be confirmed only by clinic
There is the ablation under the conditions of contact pressure of the electrode of distal end of catheter and lesion tissue is suitable to can be only achieved preferable therapeutic effect.
When being treated using ablation catheter, it is to contact distal end of catheter with lesion tissue, most importantly makes in the process
Distal end of catheter can be contacted with lesion tissue well, and otherwise, excessive pressure may cause worthless damage to tissue, and
Too small pressure is then unable to reach the therapeutic purposes thoroughly melted.
Someone utilizes the directly detection of new ablation catheter (patent application publication number: CN103908337A) to recline at present
Pressure size, but the electrode of the ablation catheter is in certain lesion tissues, such as in heart, stomach or enteron aisle, vulnerable to blood, group
Knit the influence of liquid or gastric juice etc., it is difficult to guarantee the relatively good effect that reclines；In addition to this, the device of pressure is detected in this technology
Vulnerable to the influence of detecting and controlling system precision, the degree that reclines of electrode and lesion tissue can not be determined.
Summary of the invention
It is an object of the invention to overcome electrode present in ablation catheter in the prior art that can not effectively recline lesion group
The above-mentioned deficiency such as knit and can not judge the degree of reclining, provide a kind of horn can effectively and reliably recline lesion tissue, can be quasi-
Between true coordination electrode part and lesion tissue recline power and can accurate judgement recline the absorption type ablation catheter of degree, separately
Outside, the present invention also provides a kind of ablating devices including the absorption type ablation catheter.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of absorption type ablation catheter, including tube body and the electrode section being connected with body distal end, on tube body with electrode portion
The junction divided is equipped with adsorption orifice.
In absorption type ablation catheter of the present invention, it is equipped with adsorption orifice with the junction of electrode section on tube body, works as electricity
When pole part is close to adjacent tissue, the adsorption orifice be aligned lesion tissue center, slow traveling electrode part to and lesion tissue
It reclines, opens external negative pressure source, negative pressure will be will form between adsorption orifice and lesion tissue at this time, negative pressure can make entire electrode
Part is effectively and reliably coated in lesion tissue, and ablation can be carried out by opening RF energy；In addition to this, the present invention can
To adjust the power that reclines between electrode section and lesion tissue by the watt level for controlling negative pressure source, to adapt to different lesions
(such as heart tissue, gastric tissue) and different depth of ablation are organized, the power of negative pressure source is bigger, and the power that reclines is bigger, and recline degree
Also better.It follows that the electrode section in absorption type ablation catheter of the present invention can effectively and reliably stick on disease
Stove tissue, and the power that reclines between electrode section and lesion tissue can be accurately controlled, that is, so that electrode section and lesion tissue
Between the degree of reclining become controllably, also can the degree that reclines between accurate judgement electrode section and lesion tissue.
As a preferred solution of the present invention, electrode section includes multiple electrodes arm, and the proximal end of horn with tube body
Distal end is connected, and the distal end of horn is free end.
In absorption type ablation catheter of the present invention, electrode section includes multiple electrodes arm, and multiple horn is along pipe
The radial distribution of body, and the proximal end of horn is connected with the distal end of tube body, the distal end of horn is free end, when will adsorb
When the center and be slowly moved to electrode section of mouthful alignment lesion tissue reclines with lesion tissue, external negative pressure source is opened,
Negative pressure is formed between adsorption orifice meeting at this time and lesion tissue, all horns can be wrapped effectively and reliably under the action of negative pressure
It overlays in lesion tissue, it is easy to operate, it is easy to use, and reclined using multiple electrodes arm with lesion tissue, it is further ensured that
The good degree that reclines between electrode section and lesion tissue.
In addition, the present invention will be multiple in order to further ensure the degree that reclines good between electrode section and lesion tissue
Radially uniform distribution of the horn along tube body.
It is further preferred that above-mentioned horn is in bending.
In absorption type ablation catheter of the present invention, horn is in bending, can make horn and lesion tissue it
Between cladding area it is bigger so that the degree that reclines between horn and lesion tissue is higher, can be further ensured that
Entire electrode section is effectively coated in lesion tissue；If horn is designed as linearly, then there can only be few one
Point recline with lesion tissue, most of structure cannot be sticked together with lesion tissue, can seriously affect in this way electrode section and
The degree that reclines between lesion tissue is unfavorable for melting the raising of efficiency.
It is further preferred that horn is equipped with tissue abutment face, and the back side of abutment face is organized to be equipped with temperature sensor.
In absorption type ablation catheter of the present invention, which is mainly used for around real-time detection electrode section
The temperature of lesion tissue provides security guarantee when carrying out ablation for doctor, avoids injured patients due to temperature is excessively high
Health tissues.
It is further preferred that horn includes radio-frequency transmissions horn and radio frequency reception horn.
When work, medical worker can select which specific horn respectively as radio frequency by the interface on ablating device
Emission electrode arm and radio frequency reception horn can have radio-frequency transmissions horn and extremely in several horns of selection
A few radio frequency reception horn, can also there is at least one radio-frequency transmissions horn and a radio frequency reception horn.When adding
When carrying high frequency voltage, mutually electric discharge is stimulated between radio-frequency transmissions horn and radio frequency reception horn, at this point, radio-frequency transmissions
The lesion tissue of electrode band and radio frequency reception electrode band cladding can generate heat and heat up, because of the poor radiation of lesion tissue and to height
It is thermo-responsive, such that lesion tissue is denaturalized removal under the high temperature conditions；With electrode in the prior art to back pole plate discharge into
Capable depth ablation is compared, and this ablation mode is the ablation of targeted superficial, is avoided and is disappeared in the prior art using depth
Melt the risk that mode carries out damage healthy tissues brought by ablation to superficial tissues.It follows that suction of the present invention
Attached formula ablation catheter is able to carry out targeted superficial ablation, and can guarantee relatively good ablation effect.
As a preferred solution of the present invention, projection of the electrode section on tube body axis exceeds body distal end.
In absorption type ablation catheter of the present invention, projection of the electrode section on tube body axis exceeds body distal end,
Such design can guarantee that at least partial electrode arm can guarantee that at least partial electrode arm can coat beyond body distal end
On lesion tissue surface, so that horn can effectively and reliably stick on lesion tissue surface.
As a preferred solution of the present invention, tubular body is equipped with mutually independent guidewire lumen and air flue, and air flue and absorption
Mouth connection.
In absorption type ablation catheter of the present invention, guidewire lumen is for being arranged conducting wire, and air flue is connected to adsorption orifice, mainly
Play the role of being connected to adsorption orifice and negative pressure source；And guidewire lumen and air flue are arranged independently of each other, it can be avoided air-flow to conducting wire
It has an impact, to help to improve the judgement accuracy for the degree that reclines between electrode section and lesion tissue, it helps mention
The ablation efficiency of the high absorption type ablation catheter.
It is further preferred that adsorption orifice is connected to by air flue with the negative pressure source separately set.
In absorption type ablation catheter of the present invention, adsorption orifice is connected to by air flue with negative pressure source, and negative pressure source passes through gas
Road forms negative pressure between adsorption orifice and lesion tissue, can reach adjustment electrode portion by controlling the size of the negative pressure source power
Divide the purpose for the power size that reclines between lesion tissue, it is easy to use, it not only can guarantee that electrode section effectively and reliably sticks on
In lesion tissue, but also it is avoided that the injury tissue due to power that reclines between electrode section and lesion tissue is excessive.
Therefore, the horn of absorption type ablation catheter of the present invention can effectively and reliably recline lesion tissue, can be quasi-
Between true coordination electrode part and lesion tissue recline power and can accurate judgement recline degree, moreover it is possible to carry out superficial ablation.
The present invention also provides a kind of ablating device, which includes radio frequency source and the absorption that connect with the radio frequency source
Formula ablation catheter.
Because including absorption type ablation catheter as described above, therefore the electrode of ablating device of the present invention can effectively may be used
Sticked in lesion tissue by ground, can accurately control between electrode section and lesion tissue recline power and can accurate judgement recline
The quality of degree, it is easy to use, moreover it is possible to carry out superficial ablation.
It is all to be not specifically noted in addition, in technical solution of the present invention, it can be by using normal in this field
Technological means is advised to realize the technical program.
In conclusion compared with prior art, the invention has the following beneficial effects:
1, in technical solution of the present invention, adsorption orifice is equipped with the junction of electrode section on tube body, so that
The electrode section of the absorption type ablation catheter can be sticked on effectively and reliably in lesion tissue, and can accurately control electrode portion
The power that reclines point between lesion tissue, also can the degree that reclines between accurate judgement electrode section and lesion tissue；
2, in technical solution of the present invention, horn is in bending, can be made between horn and lesion tissue
Cladding area is bigger, and the lesion tissue so that horn can preferably recline can be further ensured that entire electrode section
Completely effectively it is coated in lesion tissue；
3, in technical solution of the present invention, horn includes radio-frequency transmissions horn and radio frequency reception horn, is made
It obtains absorption type ablation catheter of the present invention and is able to carry out targeted superficial ablation, and can guarantee relatively good ablation effect
Fruit；
4, in technical solution of the present invention, projection of the electrode section on tube body axis exceeds body distal end, in this way
Design can guarantee that at least partial electrode arm can guarantee that at least partial electrode arm can be coated on disease beyond body distal end
Stove tissue surface, to be further ensured that horn can effectively and reliably stick on lesion tissue surface；
5, in technical solution of the present invention, guidewire lumen and air flue are arranged independently of each other, can be avoided air-flow to leading
Line has an impact, to help to improve the judgement accuracy for the degree that reclines between electrode section and lesion tissue, it helps
Improve the ablation efficiency of the absorption type ablation catheter；
6, the horn of ablating device of the present invention can effectively and reliably recline lesion tissue, can accurately control electrode
The power that reclines between part and lesion tissue, and can accurate judgement recline the quality of degree, it is easy to use, moreover it is possible to carry out superficial and disappear
Melt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of absorption type ablation catheter in embodiment 1；
Fig. 2 is the sectional view of 1 middle tube body of embodiment；
Marked in the figure: 1- tube body, 1.1- guidewire lumen, 1.2- air flue, 2- adsorption orifice, 3- horn.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.But this should not be interpreted as
The scope of the above subject matter of the present invention is limited to the following embodiments, all to belong to this hair based on the technology that the content of present invention is realized
Bright range.
Embodiment 1
A kind of absorption type ablation catheter, as shown in Figure 1, including tube body 1 and the electrode section being distally connected with the tube body 1,
Adsorption orifice 2 is equipped on the tube body 1 with the junction of electrode section, which is connected by air flue 1.2 and external negative pressure source
Logical, which can be air-extractor；The electrode section includes the horn 3 of multiple radially uniform distributions along tube body 1, should
Horn 3 is in bending, concretely S type or helical form, facilitates to increase the packet between electrode section and lesion tissue in this way
Clad can product, so that the degree that reclines between electrode section and lesion tissue is higher；In addition, the proximal end of multiple electrodes arm 3 is equal
It is connected with the distal end of tube body 1, and the distal end of multiple electrodes arm 3 is free end.
In the present embodiment, projection of the above-mentioned electrode section on 1 axis of tube body can be protected in this way beyond 1 distal end of tube body
Card at least partial electrode arm can guarantee that at least partial electrode arm 3 can be coated on lesion tissue table beyond 1 distal end of tube body
Face, so that horn 3 can effectively and reliably stick on lesion tissue surface.
Above-mentioned horn 3 is equipped with tissue abutment face, and the back side of the tissue abutment face is equipped with temperature sensor, and horn
3 include radio-frequency transmissions horn and radio frequency reception horn.
When work, medical worker can select specific which horn 3 respectively as penetrating by the interface on ablating device
Take place frequently radio polar arm and radio frequency reception horn, in several horns 3 of selection, can have a radio-frequency transmissions horn and
At least one radio frequency reception horn can also have at least one radio-frequency transmissions horn and a radio frequency reception horn, can
Think adjacent horn 3, or non-conterminous horn 3；Then load high frequency voltage, radio-frequency transmissions horn with penetrate
Mutually electric discharge is stimulated between frequency receiving electrode arm, at this point, the disease of radio-frequency transmissions electrode band and radio frequency reception electrode band cladding
Stove tissue can generate heat and heat up, so that lesion tissue is denaturalized removal under the high temperature conditions；With electrode in the prior art to back
The depth ablation that pole plate electric discharge carries out is compared, and this ablation mode is the ablation of targeted superficial.
As shown in Fig. 2, being equipped with mutually independent guidewire lumen 1.1 and above-mentioned air flue 1.2 inside above-mentioned tubular body 1, wherein air flue
1.2 are connected to adsorption orifice 2, i.e., above-mentioned adsorption orifice 2 is connected to by air flue 1.2 with negative pressure source.
Above-mentioned adsorption orifice 2 is flat and smooth, can be avoided and stabs tissue.
When center and slow traveling electrode part that adsorption orifice 2 is aligned to lesion tissue extremely recline with lesion tissue, open
Negative pressure source is opened, negative pressure will be will form between adsorption orifice 2 and lesion tissue at this time, which enables entire electrode section effective
It is reliably coated in lesion tissue, ablation can be carried out by opening RF energy；Furthermore it is also possible to by controlling the negative pressure
The size of source power adjusts the power that reclines between electrode section and lesion tissue, to adapt to different lesion tissue (such as heart groups
Knit, gastric tissue) and different depth of ablation, the power of air-extractor is bigger, and the power that reclines is bigger, and the degree that reclines is also better.
In the present embodiment, above-mentioned tubular body 1 is to use made of plastic material, PEBAX, polyurethane or TPU material, to protect
Demonstrate,proving tube body 1 has good rebound and elastic recovery capability, facilitates the use of the absorption type ablation catheter to a certain extent.
Embodiment 2
A kind of ablating device is present embodiments provided, which includes radio frequency source and the absorption that connect with the radio frequency source
The structure of formula ablation catheter, the absorption type ablation catheter is identical as the structure of ablation catheter that embodiment 1 provides.
The electrode of ablating device provided in this embodiment can effectively and reliably recline lesion tissue, and can accurate judgement patch
It is easy to use by the quality of degree, in addition, the ablating device also can be carried out superficial ablation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of absorption type ablation catheter, including tube body and the electrode section being connected with the body distal end, which is characterized in that institute
It states and is equipped with adsorption orifice with the junction of electrode section on tube body, the electrode section includes multiple electrodes arm, and the horn
Proximal end be connected with the distal end of tube body, and the distal end of the horn is free end, and the horn is in bending, described
Horn is equipped with tissue abutment face, and the back side of the tissue abutment face is equipped with temperature sensor.
2. absorption type ablation catheter according to claim 1, which is characterized in that the horn includes radio-frequency transmissions electrode
Arm and radio frequency reception horn.
3. absorption type ablation catheter according to claim 1, which is characterized in that the electrode section is on tube body axis
Projection exceeds body distal end.
4. absorption type ablation catheter according to claim 1, which is characterized in that the tubular body is equipped with mutually independent
Guidewire lumen and air flue, and the air flue is connected to adsorption orifice.
5. absorption type ablation catheter according to claim 4, which is characterized in that the adsorption orifice by air flue with separately set
Negative pressure source connection.
6. a kind of ablating device, which is characterized in that including in radio frequency source and the claims being connect with the radio frequency source 1 ~ 5
Absorption type ablation catheter described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380183.3A CN107440785B (en) | 2016-06-01 | 2016-06-01 | A kind of absorption type ablation catheter and ablating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380183.3A CN107440785B (en) | 2016-06-01 | 2016-06-01 | A kind of absorption type ablation catheter and ablating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107440785A CN107440785A (en) | 2017-12-08 |
| CN107440785B true CN107440785B (en) | 2019-10-18 |
Family
ID=60486082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380183.3A Active CN107440785B (en) | 2016-06-01 | 2016-06-01 | A kind of absorption type ablation catheter and ablating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107440785B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811821A (en) * | 2018-08-14 | 2020-02-21 | 复旦大学附属中山医院 | Ablation catheter |
| WO2022148156A1 (en) * | 2021-01-08 | 2022-07-14 | 北京迈迪顶峰医疗科技股份有限公司 | Electrode assembly, ablation device and radiofrequency ablation apparatus |
| CN117958958A (en) * | 2024-03-28 | 2024-05-03 | 浙江伽奈维医疗科技有限公司 | Hemorrhoid ablation electrode assembly, hemorrhoid ablation system and tissue ablation system for narrow space |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159154A (en) * | 1994-08-12 | 1997-09-10 | 丽他医学体系股份有限公司 | Multiple electrode ablation apparatus |
| CN104510532A (en) * | 2013-09-30 | 2015-04-15 | 王新 | Conformal radio frequency ablation electrode |
| CN204698679U (en) * | 2015-04-15 | 2015-10-14 | 杭州睿笛生物科技有限公司 | A kind of nanosecond pulse tumour ablation negative voltage electrode |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8597288B2 (en) * | 2008-10-01 | 2013-12-03 | St. Jude Medical, Artial Fibrillation Division, Inc. | Vacuum-stabilized ablation system |
| WO2014096275A1 (en) * | 2012-12-21 | 2014-06-26 | University College Cork - National University Of Ireland, Cork | A thoracoscopic electroporation device with a suction head and with needle electrodes |
-
2016
- 2016-06-01 CN CN201610380183.3A patent/CN107440785B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159154A (en) * | 1994-08-12 | 1997-09-10 | 丽他医学体系股份有限公司 | Multiple electrode ablation apparatus |
| CN104510532A (en) * | 2013-09-30 | 2015-04-15 | 王新 | Conformal radio frequency ablation electrode |
| CN204698679U (en) * | 2015-04-15 | 2015-10-14 | 杭州睿笛生物科技有限公司 | A kind of nanosecond pulse tumour ablation negative voltage electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107440785A (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170119465A1 (en) | Electrical ablation devices comprising an injector catheter electrode | |
| US20160193469A1 (en) | Neuromodulation system and related methods | |
| US20060089688A1 (en) | Method and apparatus to reduce wrinkles through application of radio frequency energy to nerves | |
| JP2020503144A (en) | Pulmonary vein isolation balloon catheter | |
| US20050010095A1 (en) | Multi-purpose catheter apparatus and method of use | |
| CN108601616A (en) | The system and method for arterial wall functional nerve are dominated for mapping and can realize the 3D mappings method and conduit of identical function | |
| CA2538199A1 (en) | Systems and methods for intra-operative stimulation | |
| CN107440785B (en) | A kind of absorption type ablation catheter and ablating device | |
| CN111728693A (en) | System for treating arrhythmia by adopting pulsed electric field ablation technology | |
| CN105534595B (en) | A kind of ablating electrode | |
| JP2012011195A (en) | Electrosurgical generator to ablation device adaptor | |
| US20230172650A1 (en) | Pulsed electric field waveform manipulation and use | |
| CN107440788A (en) | A kind of ablation catheter and ablating device with interpolar discharge function | |
| KR101415900B1 (en) | Reiterating type bipolar electrode for high frequency thermotherapy | |
| CN113397691A (en) | Pulse and radio frequency ablation integrated machine and using method thereof | |
| CN106308929A (en) | Ablation device capable of achieving discharge between electrodes | |
| CN107440787B (en) | A kind of mesh basket shape ablation catheter and ablating device | |
| CN204169925U (en) | A kind of electrophysiologicalcatheter catheter | |
| EP3801325B1 (en) | Electrosurgical instrument | |
| CN104587598A (en) | Non-invasive low-energy RF (Radio Frequency) diagnostic equipment | |
| CN212415889U (en) | Medical catheter | |
| CN106236254A (en) | Radio frequency ablation electrode device | |
| CN213963615U (en) | Ablation catheter for arrhythmia treatment | |
| CN112294429B (en) | Electric knife | |
| CN114073577A (en) | Medical catheter |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 5, Wuke East 3rd Road, Wuhou District, Chengdu, Sichuan 610000 Patentee after: Sichuan Jinjiang Electronic Medical Device Technology Co.,Ltd. Address before: No.5, Wuke East 3rd road, Wuhou Science Park, Chengdu hi tech Industrial Development Zone, Sichuan 610045 Patentee before: SICHUAN JINJIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co.,Ltd. |