CN2912550Y - Collective and distributive type explorer electrode assembly - Google Patents
Collective and distributive type explorer electrode assembly Download PDFInfo
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- CN2912550Y CN2912550Y CN 200620040647 CN200620040647U CN2912550Y CN 2912550 Y CN2912550 Y CN 2912550Y CN 200620040647 CN200620040647 CN 200620040647 CN 200620040647 U CN200620040647 U CN 200620040647U CN 2912550 Y CN2912550 Y CN 2912550Y
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- probe
- sleeve pipe
- electrode device
- transmission type
- diffuse transmission
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Abstract
The utility model belongs to the technical field of medical apparatus. The utility model relates to a cluster scattering probe electrode device, which applies in radiofrequency ablation therapy. The utility model comprises a handle, a handspike, a front stick, a bushing and a plurality of probe needles. Wherein, 1-15 probe needles are kept in the bushing when not in use. By driving the handspike, the probe needles are pushed out of the bushing and extended into the cluster scattering shape at the end. In the surgical treatment, the utility model can fully cover the tissue, where the radiofrequency ablation therapy is needed. The utility model shortens the therapy process and enhances the 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.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.
Tumor tissues in the human organ comprises rule and irregular shape and size. and conventional electrode catheter is definite shape substantially, and shape and size with tumor tissues in implementing ablative surgery do not conform to, thereby causes operating time to prolong, and surgical effect is undesirable.
Summary of the invention
The objective of the invention is to design a kind of boundling diffuse transmission type probe electrode device that carries out radiofrequency ablation therapy effectively at tumor tissues in the human body, 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 is built-in with the total 1-15 root of probe, is accommodated in inside pipe casing when not using, the sleeve pipe front end be sharp-pointed shape when operation, can be punctured to tumor tissues by sleeve pipe.Put in place when sleeve pipe punctures, during the pushing hand lever, the probe in the sleeve pipe is pushed out sleeve pipe and stretches in cannula tip.When probe stretched, many probe distribution were the boundling diffuse transmission type, thus the uniform penetration tumor tissues.The length that probe stretches out sleeve portion is 0.5-3cm, and the probe maximum gauge that trails is 2-7cm.When using this electrode assembly to carry out radio-frequency (RF) ablation in human body, tumor group is woven with bigger coverage rate, can obtain better therapeutic effect.
This probe electrode device can be equipped with temperature sensor (comprising thermocouple type or semi-conductor type) on probe, cooperate the automatic temperature-adjusting/energy management system on backstage, can make operation safer more accurate
This probe electrode device can have scale or position recognition mark on sleeve pipe.User can be known the degree of depth that probe inserts in use immediately.
This probe electrode device, its cannula tip can be passed through surface treatment, and for example roughness is handled or coating is handled, and helps the visibility of ultrasonic instrument and the tumor tissues that can puncture accurately. reach more effective ablation.
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 distributing comes to contain covers tumor tissues.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 the probe of optional different shape size, and radio-frequency (RF) ablation is more effective, thereby can shorten treatment time, improves therapeutic effect.
Description of drawings
Fig. 1 is this practical probe electrode assembly structure chart.
Fig. 2 is difform diagram for probe is extended into.Wherein, (a) protracting emanantly, (b) emanant for straight sides exhibition for straight line, (c) open up diffuse transmission type for the curved side, (d) open up back for the curved side and stretch formula, (e) is one-sided diffuse transmission type, (f) is the plane symmetry diffuse transmission type.
Fig. 3 is the irregular diagram of probe.
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, and 7 are temperature sensor, and 8 is scale, 9, be the tube ends surface-treated layer.
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 stretch-like 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.
After probe stretched out sleeve pipe, the extended configuration of probe specifically can have following several:
(1) straight line protracts emanantly, and shown in Fig. 2 (a), promptly probe is in line to distribute and stretches forward, and is tapered.This probe structure paracentesis depth forward is bigger.
(2) the straight sides exhibition is emanant, and shown in Fig. 2 (b), promptly probe is in line to distribute and stretches to the side, becomes umbrella shape.This probe structure is to the puncture scope is bigger all around.
(3) curved side exhibition diffuse transmission type, shown in Fig. 2 (c), promptly probe becomes evenly crooked to the side stretching, extension, becomes fountain shape.This probe structure is to the puncture scope is bigger all around.
(4) curved side is opened up back and is stretched formula, and shown in Fig. 2 (d), promptly evenly crooked inwardly the returning again to side stretching, extension rearward end of probe stretched, and becomes mushroom-shaped.This probe structure, to around the puncture scope bigger, and take into account near the cover tubing puncture melt.
(5) one-sided diffuse transmission type, shown in Fig. 2 (e), this probe structure is the part of Fig. 2 (c), promptly probe is evenly crooked stretches to a certain side.This probe structure is applicable to only needing a certain side to carry out the occasion of radio-frequency (RF) ablation.
(6) plane symmetry diffuse transmission type, shown in Fig. 2 (f), promptly the probe extended configuration is symmetric planes, both sides.
In addition, it can be irregular shape that probe stretches, as shown in Figure 3.Length after probe stretches can be identical, also can be for not waiting (as shown in Figure 3).
Probe generally has the 1-15 root, adopts Ti-Ni marmem, and the diameter of every probe is 0.1mm, stretch out be launched into stretch shape after, extension elongation is 1-3cm, intermediary maximum gauge is 1-5cm.When not using at ordinary times, the operation hand lever places sleeve pipe 2 with the probe contraction.These intravital radiofrequency ablation therapies in available chamber of probe electrode device.As the treatment that liver neoplasm melts, practice shows that its treatment time can shorten greatly, and therapeutic effect is significantly improved.
Claims (7)
1, a kind of boundling diffuse transmission type 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 1-15 root, is accommodated in inside pipe casing when not using; The sleeve pipe front portion is sharp-pointed shape, and tissue can puncture; When the sleeve pipe puncture puts in place, the pushing hand lever, the probe in the sleeve pipe is pushed out sleeve pipe, outwards stretches in cannula tip, and distributing becomes the boundling diffuse transmission type, and the probe extension is 0.5-3cm, and the open diameter of probe is 2-7cm.
2, probe electrode device according to claim 1 is characterized in that described probe adopts Ti-Ni marmem or stainless steel material.
3, probe electrode device according to claim 1 is characterized in that probe is mounted with temperature sensing device.
4, probe electrode device according to claim 1, it is characterized in that stretching the back probe is a kind of of following shape: straight line protracts that the exhibition of emanant, straight sides is emanant, curved side exhibition diffuse transmission type, curved side exhibition radiate back stretch formula, one-sided diffuse transmission type peace is faced the title diffuse transmission type.
5, probe electrode device according to claim 1 is characterized in that probe stretches the back for irregularly shaped.
6, probe electrode device according to claim 1 is characterized in that scale or position recognition mark are arranged on the sleeve pipe.
7, probe electrode device according to claim 1 is characterized in that the sleeve pipe front end has surface-treated layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620040647 CN2912550Y (en) | 2006-03-30 | 2006-03-30 | Collective and distributive type explorer electrode assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620040647 CN2912550Y (en) | 2006-03-30 | 2006-03-30 | Collective and distributive type explorer electrode assembly |
Publications (1)
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CN2912550Y true CN2912550Y (en) | 2007-06-20 |
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CN 200620040647 Expired - Fee Related CN2912550Y (en) | 2006-03-30 | 2006-03-30 | Collective and distributive type explorer electrode assembly |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103025261A (en) * | 2010-06-24 | 2013-04-03 | 艾姆西森有限公司 | Enhanced ablation apparatus |
CN103519889A (en) * | 2013-10-10 | 2014-01-22 | 迈德医疗科技(上海)有限公司 | Radiofrequency ablation electrode assembly with double umbrella-shaped probe layers |
CN110384859A (en) * | 2019-07-24 | 2019-10-29 | 开封市学国生物科技有限公司 | The self defocusing microelectrode array for recording and stimulating for acute and chronic deep brain signal |
CN114504382A (en) * | 2016-05-31 | 2022-05-17 | 科瑞欧医疗有限公司 | Electrosurgical apparatus and method |
-
2006
- 2006-03-30 CN CN 200620040647 patent/CN2912550Y/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103025261A (en) * | 2010-06-24 | 2013-04-03 | 艾姆西森有限公司 | Enhanced ablation apparatus |
CN103519889A (en) * | 2013-10-10 | 2014-01-22 | 迈德医疗科技(上海)有限公司 | Radiofrequency ablation electrode assembly with double umbrella-shaped probe layers |
CN103519889B (en) * | 2013-10-10 | 2016-02-24 | 迈德医疗科技(上海)有限公司 | A kind of radio frequency ablation electrode device of double-deck umbrella-shaped probes |
CN114504382A (en) * | 2016-05-31 | 2022-05-17 | 科瑞欧医疗有限公司 | Electrosurgical apparatus and method |
CN110384859A (en) * | 2019-07-24 | 2019-10-29 | 开封市学国生物科技有限公司 | The self defocusing microelectrode array for recording and stimulating for acute and chronic deep brain signal |
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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: 20070620 Termination date: 20140330 |