CN104688333A - Single-needle bipolar radiofrequency ablation electrode needle and radio-frequency electrode bare area adjusting method thereof - Google Patents
Single-needle bipolar radiofrequency ablation electrode needle and radio-frequency electrode bare area adjusting method thereof Download PDFInfo
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- CN104688333A CN104688333A CN201410788633.3A CN201410788633A CN104688333A CN 104688333 A CN104688333 A CN 104688333A CN 201410788633 A CN201410788633 A CN 201410788633A CN 104688333 A CN104688333 A CN 104688333A
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Abstract
The invention discloses a single-needle bipolar radiofrequency ablation electrode needle which comprises a main electrode needle body and an insulated handle pipe, wherein the front end of the insulated handle pipe is sleeved with the main electrode needle body; the insulated handle pipe is shorter than the main electrode needle body; the main electrode needle body comprises a positive electrode body, an insulator and a negative electrode body; the positive electrode body and the negative electrode body at the end parts of the main electrode needle body are arranged on two sides of the insulator in a bilateral symmetric manner, and the insulator insulates the positive electrode body and the negative electrode body; the insulated handle pipe moves in the length direction of the main electrode needle body, so that bare areas of the positive electrode body and the negative electrode body on the main electrode needle body are changed simultaneously, the electrode needle tip part of the positive electrode body or/and the negative electrode body on the main electrode needle body as well as a to-be-ablated area of the bare area of the positive electrode body or/and the negative electrode body is/are controlled by adjusting the insulated handle pipe, and further, the range of tumor radiofrequency ablation treatment is controlled. The invention provides a bare area adjusting method of the single-needle bipolar radiofrequency ablation electrode needle.
Description
[technical field]
The present invention relates to the medical apparatus and instruments of radio-frequency ablation technique, specifically a kind of single needle bipolarity radio-frequency ablation electrode needle and bare area control method thereof.
[background technology]
Existing radio-frequency ablation electrode needle is of a great variety, with regard to electrode, has the types such as single needle single electrode formula, spininess single electrode formula, single needle Double-electrode type.Wherein, single electrode formula need with negative plate with the use of, easily there is the incomplete of ablation procedure; Two electrodes of existing single needle Double-electrode type are contained in syringe needle and former and later two different regions of needle tubing respectively, but syringe needle and needle tubing are as two electrodes of radio frequency, its conductive surface area should be substantially equal, so also need to arrange insulating coating at the outer wall of needle tubing back segment, make exposed needle tubing outer wall area equal with the external surface area of needle body, namely two electrodes of radio-frequency electrode are symmetrical up and down at whole needle body, add the difficulty of processing technology; And syringe needle bare area is fixed, therefore two electrode outer surface of radio-frequency electrode are long-pending fixing, and can not regulate accordingly according to the size of tumor, namely the ablation scope of radio frequency needle is non-adjustable.
[summary of the invention]
First goal of the invention of the present invention provides a kind of radio-frequency electrode exposed part symmetrical and the single needle bipolarity radio-frequency ablation electrode needle that electrode bare area is adjustable.
Second goal of the invention of the present invention provides a kind of radio-frequency electrode exposed part symmetrical and the bare area control method of the single needle bipolarity radio-frequency ablation electrode needle that electrode bare area is adjustable.
3rd goal of the invention of the present invention provides a kind of positive and negative electrode body to use as unipolarity by selectivity as required, the bare area control method of the single needle bipolarity radio-frequency ablation electrode needle that electrode bare area is adjustable.
In order to realize the first goal of the invention of the present invention, the technical solution used in the present invention is:
A kind of single needle bipolarity radio-frequency ablation electrode needle, comprise electrode needle body and insulated handle pipe, electrode needle body is set in the front end of insulated handle pipe; The length of described insulated handle pipe is less than the length of electrode needle body; Described electrode needle body is made up of positive electrode body, insulator and negative electricity polar body, positive and negative electrode body is connected respectively with the positive and negative electrode of radio-frequency signal generator, in the symmetrical both sides being arranged at insulator of end positive and negative electrode body of electrode needle body, insulator is by insulated from each other for described positive and negative electrode body; Described insulated handle pipe moves along the length direction of described electrode needle body thus changes the exposed area of positive and negative electrode body in electrode needle body simultaneously, regulate insulated handle pipe will melt area to the electrode needle tip portion of positive electrode body Huo and negative electricity polar body in described electrode needle body and the exposed area of positive electrode body Huo and negative electricity polar body to control, and then the scope of tumor radiofrequency ablation therapy is controlled.
Preferably, the tip portion of described electrode needle body is conical syringe needle, is tubular needle tubing on rear side of the end of electrode needle body.
Preferably, described insulated handle pipe is provided with and controls it along electrode needle body plastic button in axial sliding.
Preferably, the insulator of described electrode needle body is L-shaped, L shape insulator lower end be axially provided with cable-through hole.
Preferably, the positive electrode body of described electrode needle body offers the L shape mounting groove coordinated with L shape insulator, the tubular portion of positive electrode body lower end and insulated handle pipe box fill and are slidably matched, described negative electricity polar body is installed on the indentation, there of L shape insulator, and the negative insulation wire of radio-frequency signal generator is connected to the lower end of negative electricity polar body through the cable-through hole of L shape insulator lower end.
Preferably, the negative electricity polar body of described electrode needle body offers the L shape mounting groove coordinated with L shape insulator, the tubular portion of negative electricity polar body lower end and insulated handle pipe box fill and are slidably matched, described positive electrode body is installed on the indentation, there of L shape insulator, and the positive pole insulated conductor of radio-frequency signal generator is connected to the lower end of positive electrode body through the cable-through hole of L shape insulator lower end.
Preferably, when gross tumor volume is larger, many ablating electrode pins are connected into pin group system apart from inserting in tumor tissues simultaneously at regular intervals, and according to the bare area of shape by regulating the insulated handle pipe of each ablating electrode pin to carry out control electrode pin main body of tumor, all ablating electrode pinwheel stream circulating-heatings carry out the larger tumor of Quick uniform ablated volume.
In order to realize the second goal of the invention of the present invention, the technical solution used in the present invention is:
A bare area control method for single needle bipolarity radio-frequency ablation electrode needle, comprises the following steps:
1), control the positive and negative electrode of radio-frequency signal generator and be connected with the positive and negative electrode body of electrode needle body respectively, by insulator by insulated from each other for described positive and negative electrode body, positive and negative electrode body forms a closed loop;
2), when the volume of tumor is larger, insulated handle pipe is pulled back by plastic button, insulated handle pipe moves backward along the axial direction of electrode needle body, increase the bare area of positive electrode body and negative electricity polar body in electrode needle body simultaneously, positive and negative electrode body melts work simultaneously, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe, insulated handle pipe moves forward along the axial direction of electrode needle body, the area making insulated handle pipe cover positive and negative electrode body strengthens, reduce the bare area of positive electrode body and negative electricity polar body in electrode needle body simultaneously, positive and negative electrode body after bare area reduces melts work simultaneously, and tumour ablation is controlled in suitable therapeutic domain.
In order to realize the 3rd goal of the invention of the present invention, the technical solution used in the present invention is:
A bare area control method for single needle bipolarity radio-frequency ablation electrode needle, comprises the following steps:
1), the positive and negative electrode body of control electrode pin main body penetrates in tumor, selectivity makes the one of positive electrode body or negative electricity polar body and the Electrode connection of radio-frequency signal generator, regulate the "on" position of radio-frequency signal generator, make the one of positive electrode body or negative electricity polar body and negative plate form a closed loop;
2), when the volume of tumor is larger, insulated handle pipe is pulled back by plastic button, insulated handle pipe moves backward along the axial direction of electrode needle body, increase the bare area of positive electrode body or negative electricity polar body in electrode needle body, the one of positive electrode body or negative electricity polar body melts work, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe, insulated handle pipe moves forward along the axial direction of electrode needle body, the area making insulated handle pipe cover positive electrode body or negative electricity polar body strengthens, reduce the bare area of the one of positive electrode body or negative electricity polar body in electrode needle body, positive electrode body after bare area reduces or negative electricity polar body melt work, and tumour ablation is controlled in suitable therapeutic domain.
The invention has the beneficial effects as follows:
Radio-frequency electrode of the present invention (positive electrode body or negative electricity polar body) exposed part is symmetrical, in the same size, the single needle bipolarity radio-frequency ablation electrode needle that can also adjust when guarantee bipolar electrode bare area is equal, the electrode bare area penetrating tumor tissues can be regulated according to the volume of tumor, change the therapeutic domain of tumour ablation.When the radio frequency needle of positive and negative electrode body penetrates tumor, when pin side is as blood vessel, irreversible damage is caused for avoiding radio-frequency (RF) ablation blood vessel of burning, by regulating the "on" position of radio-frequency signal generator, disconnect that end radio-frequency electrode near blood vessel, only to opposite side radio-frequency electrode energising work, now bipolarity pin can be converted to the work of unipolarity pin, change the sphere of action of radio-frequency (RF) ablation.
[accompanying drawing explanation]
Fig. 1 of the present inventionly analyses and observe perspective view;
Fig. 2 is perspective view of the present invention; ;
Fig. 3 is the A portion structure for amplifying schematic diagram in Fig. 1;
Fig. 4 is that structure for amplifying schematic diagram is analysed and observe in the end of electrode needle of the present invention;
Fig. 5 is that the master of insulator of the present invention looks three-dimensional structure for amplifying schematic diagram;
Fig. 6 is the rear perspective structure for amplifying schematic diagram of insulator of the present invention;
Fig. 7 is electrode needle bare area adjustment process enlarged diagram of the present invention.
[detailed description of the invention]
A kind of single needle bipolarity radio-frequency ablation electrode needle, as shown in Fig. 1 to 7, comprise electrode needle body 1 and insulated handle pipe 2, electrode needle body 1 is set in the front end of insulated handle pipe 2; Wherein, the tip portion of electrode needle body 1 is conical syringe needle, is tubular needle tubing on rear side of the end of electrode needle body 1, and the length of insulated handle pipe 2 is less than the length of electrode needle body 1; Electrode needle body 1 is made up of positive electrode body 1a, insulator 1b and negative electricity polar body 1c, positive and negative electrode body (1a, 1b) is connected respectively with the positive and negative electrode of radio-frequency signal generator (not shown), in the symmetrical both sides being arranged at insulator 1c, end positive and negative electrode body (1a, 1b) of electrode needle body 1, insulator 1c is by insulated from each other for positive and negative electrode body (1a, 1b); Insulated handle pipe 2 moves along the length direction of described electrode needle body 1 thus changes the exposed area of positive and negative electrode body (1a, 1b) in electrode needle body 1 simultaneously, regulate the electrode needle tip portion of positive electrode body 1a and negative electricity polar body 1b and the exposed area of positive electrode body 1a and negative electricity polar body 1b in insulated handle pipe 2 pairs of electrode needle body 1 will melt area to control, and then the scope of tumor radiofrequency ablation therapy is controlled.
Continue as shown in Fig. 1 to 7, insulated handle pipe 2 is also provided with and controls it along electrode needle body 1 plastic button (not shown) in axial sliding.In addition, the insulator 1c of electrode needle body 1 is L-shaped, L shape insulator 1c lower end be axially provided with cable-through hole 10c; The positive electrode body 1a of electrode needle body 1 offers the L shape mounting groove coordinated with L shape insulator 1c, the tubular portion of positive electrode body 1a lower end and insulated handle pipe 2 are set with and are slidably matched, negative electricity polar body 1b is installed on the indentation, there of L shape insulator 1c, and the negative insulation wire of radio-frequency signal generator is connected to the lower end of negative electricity polar body 1b through the cable-through hole 10c of L shape insulator 1c lower end.
This electrode needle in use, when the gross tumor volume needing to melt is larger, many ablating electrode pins can be adopted to be connected into pin group system apart from inserting in tumor tissues simultaneously at regular intervals, and according to the bare area of shape by regulating the insulated handle pipe of each ablating electrode pin to carry out control electrode pin main body of tumor, all ablating electrode pinwheel stream circulating-heatings carry out the larger tumor of Quick uniform ablated volume.
The bare area control method of this single needle bipolarity radio-frequency ablation electrode needle, comprises the following steps:
1) positive and negative electrode, controlling radio-frequency signal generator is connected with the positive and negative electrode body (1a, 1b) of electrode needle body 1 respectively, by insulator 1c by insulated from each other for described positive and negative electrode body (1a, 1b), positive and negative electrode body (1a, 1b) forms a closed loop;
2), when the volume of tumor is larger, insulated handle pipe 2 is pulled back by plastic button, insulated handle pipe 2 moves backward along the axial direction of electrode needle body 1, increase the bare area of positive electrode body 1a and negative electricity polar body 1b in electrode needle body 1 simultaneously, positive and negative electrode body (1a, 1b) melts work simultaneously, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe 2, insulated handle pipe 2 moves forward along the axial direction of electrode needle body, the area making insulated handle pipe 2 cover positive and negative electrode body (1a, 1b) strengthens, reduce the bare area of positive electrode body 1a and negative electricity polar body 1b in electrode needle body 1 simultaneously, positive and negative electrode body (1a, 1b) after bare area reduces melts work simultaneously, and tumour ablation is controlled in suitable therapeutic domain.
When the tumor that will melt is near blood vessel, positive and negative electrode body can use as unipolarity by selectivity as required, and the bare area control method of this single needle bipolarity radio-frequency ablation electrode needle, can also adopt following step:
1), the positive and negative electrode body (1a, 1b) of control electrode pin main body 1 penetrates in tumor, selectivity makes the Electrode connection of positive electrode body 1a and radio-frequency signal generator, disconnect the connection of negative electricity polar body 1b and radio-frequency signal generator, namely the negative electricity polar body 1b electrode near that end of blood vessel is disconnected, regulate the "on" position of radio-frequency signal generator, make positive electrode body 1a and negative plate form a closed loop;
2), when the volume of tumor is larger, insulated handle pipe 2 is pulled back by plastic button, insulated handle pipe 2 moves backward along the axial direction of electrode needle body 1, increase the bare area of positive electrode body 1a in electrode needle body 1, positive electrode body 1a melts work, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe 2, insulated handle pipe 2 moves forward along the axial direction of electrode needle body 1, the area making insulated handle pipe 2 cover positive electrode body 1a strengthens, reduce the bare area of positive electrode body 1a in electrode needle body 1, positive electrode body after bare area reduces or negative electricity polar body melt work, and tumour ablation is controlled in suitable therapeutic domain.
The above embodiment is just preferred embodiment of the present invention, not limits practical range of the present invention with this, the equivalence change that all shapes according to the present invention, structure and principle are done, and all should be covered by protection scope of the present invention.
Claims (9)
1. a single needle bipolarity radio-frequency ablation electrode needle, comprise electrode needle body and insulated handle pipe, electrode needle body is set in the front end of insulated handle pipe; It is characterized in that:
The length of described insulated handle pipe is less than the length of electrode needle body;
Described electrode needle body is made up of positive electrode body, insulator and negative electricity polar body, positive and negative electrode body is connected respectively with the positive and negative electrode of radio-frequency signal generator, in the symmetrical both sides being arranged at insulator of end positive and negative electrode body of electrode needle body, insulator is by insulated from each other for described positive and negative electrode body;
Described insulated handle pipe moves along the length direction of described electrode needle body thus changes the exposed area of positive and negative electrode body in electrode needle body simultaneously, regulates insulated handle pipe will melt area to the electrode needle tip portion of positive electrode body Huo and negative electricity polar body in described electrode needle body and the exposed area of positive electrode body Huo and negative electricity polar body and controls.
2. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 1, is characterized in that, the tip portion of described electrode needle body is conical syringe needle, is tubular needle tubing on rear side of the end of electrode needle body.
3. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 1, is characterized in that, described insulated handle pipe is provided with and controls it along electrode needle body plastic button in axial sliding.
4. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 1 and 2, it is characterized in that, the insulator of described electrode needle body is L-shaped, L shape insulator lower end be axially provided with cable-through hole.
5. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 4, it is characterized in that, the positive electrode body of described electrode needle body offers the L shape mounting groove coordinated with L shape insulator, the tubular portion of positive electrode body lower end and insulated handle pipe box fill and are slidably matched, described negative electricity polar body is installed on the indentation, there of L shape insulator, and the negative insulation wire of radio-frequency signal generator is connected to the lower end of negative electricity polar body through the cable-through hole of L shape insulator lower end.
6. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 4, it is characterized in that, the negative electricity polar body of described electrode needle body offers the L shape mounting groove coordinated with L shape insulator, the tubular portion of negative electricity polar body lower end and insulated handle pipe box fill and are slidably matched, described positive electrode body is installed on the indentation, there of L shape insulator, and the positive pole insulated conductor of radio-frequency signal generator is connected to the lower end of positive electrode body through the cable-through hole of L shape insulator lower end.
7. a kind of single needle bipolarity radio-frequency ablation electrode needle according to claim 1, it is characterized in that, when gross tumor volume is larger, many ablating electrode pins are connected into pin group system apart from inserting in tumor tissues simultaneously at regular intervals, and according to the bare area of shape by regulating the insulated handle pipe of each ablating electrode pin to carry out control electrode pin main body of tumor, all ablating electrode pinwheel stream circulating-heatings carry out the larger tumor of Quick uniform ablated volume.
8. a bare area control method for single needle bipolarity radio-frequency ablation electrode needle, is characterized in that, comprise the following steps:
1), control the positive and negative electrode of radio-frequency signal generator and be connected with the positive and negative electrode body of electrode needle body respectively, by insulator by insulated from each other for described positive and negative electrode body, positive and negative electrode body forms a closed loop;
2), when the volume of tumor is larger, insulated handle pipe is pulled back by plastic button, insulated handle pipe moves backward along the axial direction of electrode needle body, increase the bare area of positive electrode body and negative electricity polar body in electrode needle body simultaneously, positive and negative electrode body melts work simultaneously, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe, insulated handle pipe moves forward along the axial direction of electrode needle body, the area making insulated handle pipe cover positive and negative electrode body strengthens, reduce the bare area of positive electrode body and negative electricity polar body in electrode needle body simultaneously, positive and negative electrode body after bare area reduces melts work simultaneously, and tumour ablation is controlled in suitable therapeutic domain.
9. a bare area control method for single needle bipolarity radio-frequency ablation electrode needle, is characterized in that, comprise the following steps:
1), the positive and negative electrode body of control electrode pin main body penetrates in tumor, selectivity makes the one of positive electrode body or negative electricity polar body and the Electrode connection of radio-frequency signal generator, regulate the "on" position of radio-frequency signal generator, make the one of positive electrode body or negative electricity polar body and negative plate form a closed loop;
2), when the volume of tumor is larger, insulated handle pipe is pulled back by plastic button, insulated handle pipe moves backward along the axial direction of electrode needle body, increase the bare area of positive electrode body or negative electricity polar body in electrode needle body, the one of positive electrode body or negative electricity polar body melts work, strengthens the therapeutic domain of tumour ablation;
3) when the volume of tumor is little, by plastic button driven forward insulated handle pipe, insulated handle pipe moves forward along the axial direction of electrode needle body, the area making insulated handle pipe cover positive electrode body or negative electricity polar body strengthens, reduce the bare area of the one of positive electrode body or negative electricity polar body in electrode needle body, positive electrode body after bare area reduces or negative electricity polar body melt work, and tumour ablation is controlled in suitable therapeutic domain.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374726A (en) * | 2017-08-31 | 2017-11-24 | 绵阳立德电子股份有限公司 | The radio-frequency ablation electrode needle and installation, application method of a kind of adjustable active length |
| CN107865688A (en) * | 2017-12-05 | 2018-04-03 | 安徽硕金医疗设备有限公司 | The radiofrequency melting instrument and ablation needle of a kind of magnetic resonance compatible |
| CN107921258A (en) * | 2015-08-06 | 2018-04-17 | 美敦力公司 | Melt cardiac pulses field |
| WO2020088139A1 (en) * | 2017-11-28 | 2020-05-07 | 杭州诺诚医疗器械有限公司 | Ablation needle assembly and ablation system |
| US10888372B2 (en) | 2016-01-28 | 2021-01-12 | Industrial Technology Research Institute | Radiofrequency ablation electrode needle |
| US10898261B2 (en) | 2017-12-22 | 2021-01-26 | Industrial Technology Research Institute | Bipolar electrode probe |
| US11013553B2 (en) | 2017-11-28 | 2021-05-25 | Hangzhou Nuo Cheng Medical Instrument Co., Ltd. | Treatment method for hypertrophic cardiomyopathy |
| CN113143445A (en) * | 2021-03-11 | 2021-07-23 | 上海交通大学 | Radiofrequency ablation probe system capable of conformal thermal ablation |
| CN114557766A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Radio frequency ablation needle system with adjustable length |
| CN115607161A (en) * | 2022-09-26 | 2023-01-17 | 武汉中科科理光电技术有限公司 | Single-needle bipolar microprobe and detection system thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611314A1 (en) * | 1992-08-12 | 1994-08-24 | Vidamed Inc | Medical probe device and method. |
| CN101056593A (en) * | 2004-07-20 | 2007-10-17 | 蒂姆医药公司 | Multielectrode electrosurgical instrument |
| CN101646395A (en) * | 2006-11-01 | 2010-02-10 | 博维医疗设备公司 | Bipolar ablation probe having porous electrodes for delivering electrically conductive fluid |
| 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 |
| CN204581497U (en) * | 2014-12-17 | 2015-08-26 | 珠海和佳医疗设备股份有限公司 | A kind of single needle bipolarity radio-frequency ablation electrode needle |
-
2014
- 2014-12-17 CN CN201410788633.3A patent/CN104688333A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611314A1 (en) * | 1992-08-12 | 1994-08-24 | Vidamed Inc | Medical probe device and method. |
| CN101056593A (en) * | 2004-07-20 | 2007-10-17 | 蒂姆医药公司 | Multielectrode electrosurgical instrument |
| CN101646395A (en) * | 2006-11-01 | 2010-02-10 | 博维医疗设备公司 | Bipolar ablation probe having porous electrodes for delivering electrically conductive fluid |
| 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 |
| CN204581497U (en) * | 2014-12-17 | 2015-08-26 | 珠海和佳医疗设备股份有限公司 | A kind of single needle bipolarity radio-frequency ablation electrode needle |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107921258B (en) * | 2015-08-06 | 2021-09-07 | 美敦力公司 | Cardiac pulsed field ablation |
| CN107921258A (en) * | 2015-08-06 | 2018-04-17 | 美敦力公司 | Melt cardiac pulses field |
| US11701169B2 (en) | 2015-08-06 | 2023-07-18 | Medtronic, Inc. | Cardiac pulsed field ablation |
| US10888372B2 (en) | 2016-01-28 | 2021-01-12 | Industrial Technology Research Institute | Radiofrequency ablation electrode needle |
| CN107374726B (en) * | 2017-08-31 | 2023-10-20 | 绵阳立德电子股份有限公司 | Radio frequency ablation electrode needle with adjustable working length and mounting method |
| CN107374726A (en) * | 2017-08-31 | 2017-11-24 | 绵阳立德电子股份有限公司 | The radio-frequency ablation electrode needle and installation, application method of a kind of adjustable active length |
| WO2020088140A1 (en) * | 2017-11-28 | 2020-05-07 | 杭州诺诚医疗器械有限公司 | Ablation needle component and ablation system |
| US11013553B2 (en) | 2017-11-28 | 2021-05-25 | Hangzhou Nuo Cheng Medical Instrument Co., Ltd. | Treatment method for hypertrophic cardiomyopathy |
| WO2020088139A1 (en) * | 2017-11-28 | 2020-05-07 | 杭州诺诚医疗器械有限公司 | Ablation needle assembly and ablation system |
| CN107865688A (en) * | 2017-12-05 | 2018-04-03 | 安徽硕金医疗设备有限公司 | The radiofrequency melting instrument and ablation needle of a kind of magnetic resonance compatible |
| US10898261B2 (en) | 2017-12-22 | 2021-01-26 | Industrial Technology Research Institute | Bipolar electrode probe |
| CN113143445A (en) * | 2021-03-11 | 2021-07-23 | 上海交通大学 | Radiofrequency ablation probe system capable of conformal thermal ablation |
| CN114557766A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Radio frequency ablation needle system with adjustable length |
| CN114557766B (en) * | 2022-01-17 | 2023-07-28 | 安隽医疗科技(南京)有限公司 | Radio frequency ablation needle system with adjustable length |
| CN115607161A (en) * | 2022-09-26 | 2023-01-17 | 武汉中科科理光电技术有限公司 | Single-needle bipolar microprobe and detection system thereof |
| CN115607161B (en) * | 2022-09-26 | 2024-02-23 | 武汉中科科理光电技术有限公司 | Single-needle bipolar microprobe and detection system thereof |
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Application publication date: 20150610 |