CN2855350Y - Probe electrode device for RF ablation treatment - Google Patents
Probe electrode device for RF ablation treatment Download PDFInfo
- Publication number
- CN2855350Y CN2855350Y CN 200520044704 CN200520044704U CN2855350Y CN 2855350 Y CN2855350 Y CN 2855350Y CN 200520044704 CN200520044704 CN 200520044704 CN 200520044704 U CN200520044704 U CN 200520044704U CN 2855350 Y CN2855350 Y CN 2855350Y
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- probe
- electrode device
- probe electrode
- sleeve pipe
- lantern
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Abstract
The utility model belongs to medical instrument technical field, in particular to a probe electrode device used in radio-frequency ablation therapy. The device is composed of connected a handle, a handspike, a front rod, a casing pipe and a plurality of probes. Wherein, 4-10 probes are provided, which can be collected and held in the casing pipe while not in use; the probe can be pushed out of the casing pipe by pushing the handspike and spreads out in lantern shape at the end part. During the treatment surgery, the device has large contact area with the cavity inner wall, which shortens the treatment time and enhances treatment effect.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of energy delivery and outut device that the radio-frequency (RF) ablation of the treatment soft tissue of human body (comprising tumor) is hindered by Wicresoft that be used for.
Technical background
Report the earliest about heat energy treatment tumor is early stage Egyptian and Greek treat superficial tumor with thermocauterization record.In general, according to histological types and concrete condition, heat energy causes do not wait from 3 to the 50 hours time of primary cellular defect needs, when temperature is increased to greater than 42 ℃, causes the needed time of primary cellular defect to be index decreased.For example, when temperature reaches 46 ℃, need 8 minutes kill tumor cells, and when temperature reaches 51 ℃, only need 2 minutes just can the kill tumor cell.When temperature surpasses 60 ℃, the intracellular protein degeneration, two lipid films melt, and cell death is inevitable.Studies show that there is certain physiological regulation defective in newborn tumor vessel, and cryogenic toleration is better than normal cell, and pyritous toleration is more normally organized poor.
Radio frequency produces heat energy and causes the focus that tissue necrosis more and more becomes research and clinical practice in recent years.When using radiofrequency ablation therapy, the high-frequency alternating current of probe tip is injected the probe surrounding tissue, and the ion in the tissue also just changes along with the change of the sense of current, thereby frictional heat, when the temperature of tissue surpassed 60 ℃, regional organization's necrosis appearred in cell death around probe.The radio-frequency (RF) therapy technology of standard can make the local organization temperature surpass 100 ℃, makes destination organization and tissue generation coagulation necrosis on every side.
Along with the energy ablation continuous advancement in technology, probe is also derived gradually by traditional monopolar radio frequency pin and is developed the multi-pole rf pin, for example many pieces of arc probes.When the insulation epitheca of probe entered tumor, probe shrank in the sheath, and under the guiding of real-time ultrasound, through the handle operation, probe becomes radial cosmos to flick in tumor, forms the probe clump of diameter a 2.0～5.0cm.
In recent years, along with the expansion gradually of energy ablation technology clinical application range, the probe that research and development are adapted to different clinical practice demands just seems especially important.
There is certain surface curvature in hollow lumen such as similar uterus in the human organ, conventional electrode catheter is aciculiform or annular, obtuse angle shape, umbrella shape substantially, little with the cavity inner surface contact surface in implementing the cavity inner wall ablative surgery, thus cause operating time to prolong, and surgical effect is undesirable.
Summary of the invention
The objective of the invention is to design a kind of probe electrode device that carries out radiofrequency ablation therapy effectively at cavity inner wall, this apparatus structure is simple, easy to operate, and can shorten operating time, improves surgical effect.
The probe electrode that is used for radiofrequency ablation therapy of this utility model design, it is improvement to existing similar probe electrode device, its difference part is, electrode assembly the total 4-10 root of built-in probe, when not using, be accommodated in inside pipe casing, when operation, pushing hand lever, the probe in the sleeve pipe are pushed out sleeve pipe and stretch in cannula tip, are lantern shape (also can claim olive shape), the length of lantern is 5-10cm, and lantern mid portion maximum gauge is 1-6cm.When using this electrode assembly in cavity, to carry out radio-frequency (RF) ablation, have bigger contact surface, can obtain better therapeutic effect with cavity inner wall.Temperature sensor (comprising thermocouple type or semi-conductor type) is housed on the probe of Shen Zhaning simultaneously, cooperates the automatic temperature-adjusting/energy management system on backstage, can make operation safer more accurate
The probe electrode structure similar that this utility model designed probe electrode, the structure of other parts and at present common radio-frequency (RF) ablation are used also comprises handle, hand lever, preceding bar, sleeve pipe and handle joint etc., and its structure is seen shown in the accompanying drawing.Its middle probe adopts Ti-Ni marmem material or stainless steel material, and the diameter of every probe is 0.1-0.2mm.Owing to be memorial alloy or stainless steel material (having elasticity), probe under hand lever is handled, stretches out in sleeve pipe when operation, launches, and is scattered in bird-caging.Operation finishes, and under hand lever was handled, probe drew in and places in the sleeve pipe.
This utility model designed probe electrode structure is simple, and is easy to operate, and probe becomes the lantern shape, big with the cavity inner wall contact surface, thereby can shorten treatment time, improves therapeutic effect.
Description of drawings
Fig. 1 is this utility model probe electrode structure drawing of device.
Number in the figure: 1 is probe, and 2 is sleeve pipe, and 3 is preceding bar, and 4 is hand lever, and 5 is handle, and 6 is the handle joint.7 are temperature sensor
The specific embodiment
Further describe this utility model below in conjunction with drawings and Examples.
Concrete electrode structure as shown in Figure 1, by handle joint 6, handle 5, hand lever 4, preceding bar 3, sleeve pipe 2 and probe 1 through forming.Probe 1 is accommodated within the sleeve pipe 2 when flat.Probe 1 is stretched out from sleeve pipe 2 and present the lantern shape by handle 5 push-and-pulls.Hand lever 4 and preceding bar 3 Chinese physician that is used to perform the operation grips electrode, and handle joint 6 is used to provide power supply, energy and the control signal of probe.Wherein the structure of handle joint 6, handle 5, hand lever 4 and preceding bar 3 is similar with annexation and existing similar electrode, will not repeat here.
In this example, probe 1 has 4, adopts Ti-Ni marmem, and the diameter of every probe is 0.1mm, stretch out be launched into bird-caging after, the length of bird-caging is 5-8cm, intermediary maximum gauge is 1-5cm.When not using at ordinary times, the operation hand lever places sleeve pipe 2 with the probe contraction.The intravital radiofrequency ablation therapy in the available chamber of probe electrode device in the example.As the treatment of endometrial ablation or uterus tumor, practice shows that its treatment time can shorten greatly, and therapeutic effect is significantly improved.
In addition, electrode catheter also can adopt stainless steel material, is applicable in the product of low side comparatively.
Claims (2)
1, a kind of probe electrode device that is used for radiofrequency ablation therapy is made of handle, hand lever, preceding bar, sleeve pipe and Duo Gen probe, it is characterized in that probe has the 4-10 root, and is the lantern shape in the cannula tip stretching, extension; The length of lantern is 5-10cm, and lantern mid portion maximum gauge is 1-6cm.
2, probe electrode device according to claim 1 is characterized in that the probe in the sleeve pipe adopts Ti-Ni marmem or stainless steel material, and is mounted with temperature sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044704 CN2855350Y (en) | 2005-09-01 | 2005-09-01 | Probe electrode device for RF ablation treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044704 CN2855350Y (en) | 2005-09-01 | 2005-09-01 | Probe electrode device for RF ablation treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2855350Y true CN2855350Y (en) | 2007-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044704 Expired - Fee Related CN2855350Y (en) | 2005-09-01 | 2005-09-01 | Probe electrode device for RF ablation treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2855350Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102106754A (en) * | 2011-04-11 | 2011-06-29 | 西安交通大学 | Radio frequency ablation blood coagulator |
| CN102940525A (en) * | 2012-10-17 | 2013-02-27 | 上海安通医疗科技有限公司 | Multi-pole helicoidal radiofrequency ablation conduit |
| CN103169537A (en) * | 2013-02-26 | 2013-06-26 | 上海安通医疗科技有限公司 | Multi-electrode net-shaped radio frequency ablation catheter |
| US8612022B1 (en) | 2012-09-13 | 2013-12-17 | Invatec S.P.A. | Neuromodulation catheters and associated systems and methods |
| CN103519888A (en) * | 2013-10-30 | 2014-01-22 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency electrode with temperature measurement function and impedance measurement function and radiofrequency ablatograph |
| CN103784181A (en) * | 2014-03-06 | 2014-05-14 | 山东威高集团医用高分子制品股份有限公司 | Disposable monopole probe |
| US9138281B2 (en) | 2002-04-08 | 2015-09-22 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for bilateral renal neuromodulation via catheter apparatuses having expandable baskets |
| US9579149B2 (en) | 2014-03-13 | 2017-02-28 | Medtronic Ardian Luxembourg S.A.R.L. | Low profile catheter assemblies and associated systems and methods |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| US10350004B2 (en) | 2004-12-09 | 2019-07-16 | Twelve, Inc. | Intravascular treatment catheters |
| CN111887983A (en) * | 2020-09-03 | 2020-11-06 | 张萍 | Probe radio frequency ablation electrode device for liver cancer treatment |
-
2005
- 2005-09-01 CN CN 200520044704 patent/CN2855350Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9138281B2 (en) | 2002-04-08 | 2015-09-22 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for bilateral renal neuromodulation via catheter apparatuses having expandable baskets |
| US10350004B2 (en) | 2004-12-09 | 2019-07-16 | Twelve, Inc. | Intravascular treatment catheters |
| US11272982B2 (en) | 2004-12-09 | 2022-03-15 | Twelve, Inc. | Intravascular treatment catheters |
| CN102106754A (en) * | 2011-04-11 | 2011-06-29 | 西安交通大学 | Radio frequency ablation blood coagulator |
| US8612022B1 (en) | 2012-09-13 | 2013-12-17 | Invatec S.P.A. | Neuromodulation catheters and associated systems and methods |
| CN102940525A (en) * | 2012-10-17 | 2013-02-27 | 上海安通医疗科技有限公司 | Multi-pole helicoidal radiofrequency ablation conduit |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN103169537A (en) * | 2013-02-26 | 2013-06-26 | 上海安通医疗科技有限公司 | Multi-electrode net-shaped radio frequency ablation catheter |
| CN103519888A (en) * | 2013-10-30 | 2014-01-22 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency electrode with temperature measurement function and impedance measurement function and radiofrequency ablatograph |
| CN103784181A (en) * | 2014-03-06 | 2014-05-14 | 山东威高集团医用高分子制品股份有限公司 | Disposable monopole probe |
| US9579149B2 (en) | 2014-03-13 | 2017-02-28 | Medtronic Ardian Luxembourg S.A.R.L. | Low profile catheter assemblies and associated systems and methods |
| US10433907B2 (en) | 2014-03-13 | 2019-10-08 | Medtronic Ardian Luxembourg S.A.R.L. | Low profile catheter assemblies and associated systems and methods |
| CN111887983A (en) * | 2020-09-03 | 2020-11-06 | 张萍 | Probe radio frequency ablation electrode device for liver cancer treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20120901 |