CN111481290A - Double-water-path ablation electrode needle - Google Patents
Double-water-path ablation electrode needle Download PDFInfo
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- CN111481290A CN111481290A CN202010431521.8A CN202010431521A CN111481290A CN 111481290 A CN111481290 A CN 111481290A CN 202010431521 A CN202010431521 A CN 202010431521A CN 111481290 A CN111481290 A CN 111481290A
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- cooling water
- water injection
- needle
- water
- injection pipe
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- 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
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- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
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- 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
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
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Abstract
The utility model provides a two water route ablation electrode needle, the needle body includes the syringe needle, the cooling water inlet tube, cooling water outlet pipe and water injection pipe are followed interior extremely outer cover in proper order and are established, with the cooling water inlet tube, cooling water outlet pipe and water injection pipe front end joint department are connected, the water injection pipe is located the treatment position and has seted up out the liquid hole, the cooling water inlet tube, cooling water outlet pipe and water injection pipe rear end correspond respectively and connect the cooling water inlet pipe way, cooling water outlet pipe way and water injection pipe way, the joint department outside is provided with insulating handle. Compared with the prior art, the double-waterway radio frequency ablation device has the advantages that double waterways are adopted, water injection and cold circulation can be realized simultaneously, the temperature of the needle tube can be reduced during radio frequency ablation, carbonization is prevented, impedance can be reduced, and the ablation area is increased. The problem of small ablation range in clinical use is solved, the ablation range of the radiofrequency ablation electrode needle is enlarged in clinical use, and the radiofrequency ablation electrode needle is better suitable for clinical use.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a double-water-path ablation electrode needle.
Background
Due to the narrow internal space of the ablation electrode needle, the radio frequency ablation electrode needle on the market at present is mainly used for independent cold circulation or independent water injection. The ablation electrode needle with single cold circulation introduced in CN208974088U suffers from insufficient conductivity in vivo, increased impedance, and inability to ablate a larger range in clinical use. Utility model CN206120443U introduces adjustable water injection ablation electrode needle is subject to not having cold circulation, leads to melting electrode needle temperature rise fast, easy carbonization, and it is less to melt the scope. At present, in order to increase the ablation area, an umbrella-shaped electrode is manufactured on the market, and the umbrella-shaped needle with the water injection function introduced by the utility model CN201879818U is easy to damage normal tissues in clinical application and has the problem of incomplete unfolding needle.
In view of the above, the prior art electrode needle has the following disadvantages: mainly a separate cold cycle or a separate water injection. In clinical use, the single cold circulation is limited by the increase of impedance, so that a larger range cannot be ablated, and the single water injection is limited by no cold circulation, so that the temperature of the ablation electrode needle is too high, and the ablation range is smaller.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-water-path ablation electrode needle which comprises the following components in parts by weight:
the technical scheme of the invention is realized as follows:
the utility model provides a two water route ablation electrode needle, includes the needle body, the needle body includes syringe needle, cooling water inlet tube, cooling water outlet pipe and water injection pipe are followed interior extremely overlapping in proper order and are established, the syringe needle is located the top of needle body, is connected with cooling water inlet tube, cooling water outlet pipe and water injection pipe front end connector department, the water injection pipe is located the treatment position and has seted up out the liquid hole, cooling water inlet tube, cooling water outlet pipe and water injection pipe rear end correspond respectively and connect cooling water inlet pipe, cooling water outlet pipe way and water injection pipe way, and the joint department outside is provided with insulating handle, the needle body coupling has the cable.
Preferably, the water injection pipe is sleeved with an insulating film outside the non-treatment part.
Preferably, the rear ends of the cooling water inlet pipeline, the cooling water outlet pipeline and the water injection pipeline are all connected with luer connectors, the luer connectors are used for being connected with respective external pipeline parts, and the external pipeline parts comprise a water outlet pipeline part, a water inlet pipeline part and a water injection pipeline part.
Preferably, the front end of the cooling water inlet pipe protrudes out of the front end of the water injection pipe.
Preferably, the insulated handle is provided with an anti-slip rubber sleeve.
Preferably, the liquid outlet holes comprise a plurality of liquid outlet holes, and a plurality of rows of liquid outlet holes are equidistantly arranged on the outer side of the water injection pipe positioned at the treatment part.
Preferably, one end of the cable is positioned inside the insulating handle and connected with the needle body, and the other end of the cable is connected with the cable connector.
Compared with the prior art, the invention has the following beneficial effects:
the double-water-path ablation electrode needle provided by the invention adopts double water paths, can realize water injection and cold circulation at the same time, can reduce the temperature of the needle tube during radio frequency ablation, prevents carbonization, can reduce impedance and increases ablation area. The double-waterway is realized in the narrow space in the ablation electrode needle, the problem of small ablation range in clinical use is solved, and the ablation range of the radio frequency ablation electrode needle is enlarged in clinical use, so that the radio frequency ablation electrode needle is better suitable for clinical use.
Drawings
FIG. 1 is a schematic structural view of a dual waterway ablation electrode needle according to the present invention;
fig. 2 is a partial cross-sectional view of the needle of the present invention.
In the figure: the needle body 100, the needle head 110, the cooling water inlet pipe 120, the cooling water outlet pipe 130, the water injection pipe 140, the liquid outlet hole 141, the insulating film 142, the cooling water inlet pipe 210, the cooling water outlet pipe 220, the water injection pipe 230, the insulating handle 300, the anti-skid rubber sleeve 310, the cable 400, the luer connector 500, the water outlet pipe part 600, the water inlet pipe part 700, the water injection pipe part 800, and the cable connector 900.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.
As shown in fig. 1 and 2, a two water route ablation electrode needle, including needle body 100, needle body 100 includes syringe needle 110, cooling water inlet tube 120, cooling water outlet pipe 130 and water injection pipe 140 from interior to outer overlapping in proper order establish, syringe needle 110 is located the top of needle body 100, is connected with cooling water inlet tube 120, cooling water outlet pipe 130 and water injection pipe 140 front end connector department, liquid outlet hole 141 has been seted up to water injection pipe 140 is located the treatment position, cooling water inlet tube 120, cooling water outlet pipe 130 and water injection pipe 140 rear end correspond respectively and connect cooling water inlet pipe 210, cooling water outlet pipe 220 and water injection pipe 230, and the connector department outside is provided with insulating handle 300, needle body 100 is connected with cable 400. The water injection pipe 140 is sleeved with an insulating film 142 outside the non-treatment part, and the insulating film can prevent the non-treatment part from being affected by treatment. The back ends of the cooling water inlet pipeline 210, the cooling water outlet pipeline 220 and the water injection pipeline 230 are all connected with luer connectors 500, the luer connectors 500 are used for connecting respective external pipeline components, and the external pipeline components comprise a water outlet pipeline component 600, a water inlet pipeline component 700 and a water injection pipeline component 800. The front end of the cooling water inlet pipe 210 protrudes out of the front end of the water injection pipe 140, so that the cooling range is enlarged. The insulating handle 300 is provided with an anti-slip rubber sleeve 310, which is convenient for a doctor to operate. The liquid outlet 141 comprises a plurality of liquid outlets, and a plurality of rows of liquid outlets are equidistantly arranged outside the water injection pipe 140 positioned at the treatment part, so that the treatment liquid can uniformly reach the focus, and the treatment effect is improved. One end of the cable 400 is positioned inside the insulated handle 300 and connected with the needle body 100, and the other end is connected with the cable connector 900.
The use method of the double-water-path ablation electrode needle comprises the following steps: connecting the ablation system with the double-waterway electrode, checking the position of the focus, and inserting the double-waterway electrode into the focus percutaneously under the guidance of diagnostic imaging equipment (such as US and CT). The peristaltic pump connected with the water inlet pipeline part and the injection pump connected with the water injection pipeline part 800 are started, then the radio frequency ablation system is started, the injection pump injects normal saline and the like into the water injection pipe 140, the heated needle body 100 heats the normal saline, the normal saline reaching a certain temperature enters the focus position through the liquid outlet hole 141 for treatment, in order to avoid overheating of the needle body 100, the water inlet pipeline part 700 injects cooling water into the cooling water inlet pipe 120, the cooling water performs constant temperature cooling on the needle body at the position of the needle body 100, and the cooling water after heat exchange is discharged into the water outlet pipeline part 600 from the cooling water outlet pipe 130.
According to the structure and the using process of the double-water-path ablation electrode needle, double water paths are adopted, water injection and cold circulation can be realized simultaneously, the temperature of the needle tube can be reduced during radio frequency ablation, carbonization is prevented, impedance can be reduced, and the ablation area is enlarged. The double-waterway is realized in the narrow space in the ablation electrode needle, the problem of small ablation range in clinical use is solved, and the ablation range of the radio frequency ablation electrode needle is enlarged in clinical use, so that the radio frequency ablation electrode needle is better suitable for clinical use.
Claims (7)
1. The utility model provides a two water route ablation electrode needle, a serial communication port, including the needle body, the needle body includes syringe needle, cooling water inlet tube, cooling water outlet pipe and water injection pipe are followed interior extremely overlapping in proper order and are established, the syringe needle is located the top of needle body, is connected with cooling water inlet tube, cooling water outlet pipe and water injection pipe front end connector department, the water injection pipe is located the treatment position and has seted up out the liquid hole, cooling water inlet tube, cooling water outlet pipe and water injection pipe rear end correspond respectively and connect cooling water inlet pipe, cooling water outlet pipe way and water injection pipe way, and the connector department outside is provided with insulating handle, the needle body is connected with the cable.
2. The dual-water-path ablation electrode needle as claimed in claim 1, wherein an insulating film is sleeved on the outer side of the non-treatment part of the water injection pipe.
3. The dual-water-path ablation electrode needle as claimed in claim 1, wherein the back ends of the cooling water inlet line, the cooling water outlet line and the water injection line are connected with luer connectors for connecting respective external line components, and the external line components comprise an outlet line component, a water inlet line component and a water injection line component.
4. The dual-water-path ablation electrode needle as claimed in claim 1, wherein the front end of the cooling water inlet pipe protrudes out of the front end of the water injection pipe.
5. The dual-water-path ablation electrode needle as claimed in claim 1, wherein the insulating handle is provided with an anti-slip rubber sleeve.
6. The dual-water-path ablation electrode needle of claim 1, wherein the liquid outlet holes comprise a plurality of rows which are equidistantly arranged outside the water injection pipe at the treatment site.
7. The dual-water-path ablation electrode needle as claimed in claim 1, wherein one end of the cable is positioned inside the insulating handle and connected with the needle body, and the other end of the cable is connected with the cable connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431521.8A CN111481290A (en) | 2020-05-20 | 2020-05-20 | Double-water-path ablation electrode needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431521.8A CN111481290A (en) | 2020-05-20 | 2020-05-20 | Double-water-path ablation electrode needle |
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| Publication Number | Publication Date |
|---|---|
| CN111481290A true CN111481290A (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010431521.8A Pending CN111481290A (en) | 2020-05-20 | 2020-05-20 | Double-water-path ablation electrode needle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022332A (en) * | 2020-09-03 | 2020-12-04 | 至善介入消融技术研究院(南京)有限公司 | Ablation needle |
| CN112957122A (en) * | 2021-02-07 | 2021-06-15 | 达州市中心医院 | Radio frequency ablation device |
| CN116492045A (en) * | 2023-06-29 | 2023-07-28 | 浙江伽奈维医疗科技有限公司 | Microwave ablation needle and ablation assembly |
-
2020
- 2020-05-20 CN CN202010431521.8A patent/CN111481290A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022332A (en) * | 2020-09-03 | 2020-12-04 | 至善介入消融技术研究院(南京)有限公司 | Ablation needle |
| CN112022332B (en) * | 2020-09-03 | 2024-03-08 | 至善介入消融技术研究院(南京)有限公司 | Ablation needle |
| CN112957122A (en) * | 2021-02-07 | 2021-06-15 | 达州市中心医院 | Radio frequency ablation device |
| CN116492045A (en) * | 2023-06-29 | 2023-07-28 | 浙江伽奈维医疗科技有限公司 | Microwave ablation needle and ablation assembly |
| CN116492045B (en) * | 2023-06-29 | 2023-10-10 | 浙江伽奈维医疗科技有限公司 | Microwave ablation needle and ablation assembly |
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