CN201208301Y - Multiple electrode memory metal brain tumor local temperature-controlled heat treatment electrode - Google Patents
Multiple electrode memory metal brain tumor local temperature-controlled heat treatment electrode Download PDFInfo
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- CN201208301Y CN201208301Y CNU2008201088414U CN200820108841U CN201208301Y CN 201208301 Y CN201208301 Y CN 201208301Y CN U2008201088414 U CNU2008201088414 U CN U2008201088414U CN 200820108841 U CN200820108841 U CN 200820108841U CN 201208301 Y CN201208301 Y CN 201208301Y
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Abstract
The utility model discloses a multi-polar memory metal local temperature-controlled heat-treatment electrode for brain tumor, which comprises an outer bushing used as one pole of the heat-treatment electrode and provided with an insulation layer on the surface thereof, an electrode inner core used as the other pole of the heat-treatment electrode, a multi-point optical fiber temperature sensor, and fixing bolts. The electrode inner core is arranged in the outer bushing and the front end thereof is divided into at least two electrode sub-needle heads; the tail end of each electrode sub-needle head is circular arc-shaped and identification scales are arranged at the back end thereof; and the back end thereof and the outer bushing are respectively connected with two polar phases of a radio frequency heating device; and the electrode sub-needle heads dispersing in an umbrella shape forms a quasi-sphere heating area according to a predetermined memory shape after extending from the outer bushing. The multi-point optical fiber temperature sensor penetrates the electrode inner core; and two or more temperature sensing points are formed at one end of each of electrode sub-needle heads, and the other end thereof is connected with a temperature measuring and controlling instrument. The damage to surrounding brain tissue during operations can be reduced through the electrode, and the eschar adhesion phenomenon is difficult to be caused by exactly controlling the heating temperature.
Description
Technical field
This utility model is about a kind of medical apparatus and instruments, more particularly, is about the local temperature control thermotherapy of a kind of multipole memory metal cerebral tumor electrode.
Background technology
Existing tumor thermotherapy multistylus electrode is made up of stainless steel outer sleeve pipe and inner core.Trocar sheath scribbles insulating barrier outward, and the trocar sheath end exposes and forms a utmost point, and inner core constitutes another utmost point, and the inner core leading section is divided into a plurality of electrodes and divides syringe needle.Before the tumor thermotherapy multistylus electrode is implanted diseased region, all electrodes divide syringe needle all to be contracted in the trocar sheath, after arriving the tumor of diseased region, all electrodes divide syringe needle to stretch out trocar sheath to thrust tumor, thrust all electrodes of back and divide syringe needle separately to be umbrella, carry out temperature control and carry out thermotherapy by being arranged on point for measuring temperature on the trocar sheath front end again.
There is following shortcoming in above-mentioned existing tumor thermotherapy multistylus electrode in the use of actual operation:
1, it is tapered that each electrode divides the front end of syringe needle, sharper keen, easily surrounding tissue produced shearing force and causes tissue injury in telescopic process.
2, temperature measuring equipment generally adopts the thermocouple sensing head, but the thermocouple sensing head is subjected to electromagnetic influence easily, produces bigger drift, and the temperature of being surveyed is the central temperature of the umbrella thermal treatment zone, thereby make thermal treatment zone lip temperature is difficult to accurate control.
3, the temperature range of carrying out thermotherapy is generally 70-90 ℃, can form eschar to the heating of tissue and stick on the electrode under this temperature.Therefore, withdrawing from of electrode around may tearing in the process blood vessel and take place hemorrhagely, in the tumor tissues of body part, generally can not cause serious consequence, but for operation of intracranial tumor, cerebral tissue matter is soft, and poor toughness is sheared or torn and all may cause damage or hemorrhage.Described tumor thermotherapy multistylus electrode only can't be used for tumor thermotherapy in the brain applicable to the radio-frequency (RF) thermotherapeutic of malignant tumor such as liver, lung, prostate.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of damage that can reduce surrounding tissue in operation process, accurately controls the local temperature control thermotherapy of the multipole memory metal cerebral tumor electrode that heating-up temperature is difficult for causing the eschar adhesion phenomenon.
In order to achieve the above object, the technical solution of the utility model is achieved in that the local temperature control thermotherapy of a kind of multipole memory metal cerebral tumor electrode, include: the surface be provided with insulating barrier the described thermotherapy electrode of conduct a utmost point trocar sheath, as electrode inner core, multiple spot fibre optic temperature sensor and the set bolt of another utmost point of described thermotherapy electrode
Described electrode inner core is arranged in the described trocar sheath, the described electrode inner core front end that is used for thermotherapy heating is divided at least two electrode and divides syringe needle, described each electrode divides the end of syringe needle to be respectively circular-arc, the rear end is provided with the reference mark that is used to indicate described electrode inner core insertion depth, end, the rear end of described electrode inner core and described trocar sheath are connected with the two poles of the earth of radio frequency heating apparatus respectively, stretch out behind the described trocar sheath to be the described electrode minute hand capitiform that umbrella shape scatters by its predetermined shape memory and to become the spherical thermal treatment zone of class;
Described multiple spot fibre optic temperature sensor is located in in-core in the described electrode, the described multiple spot fibre optic temperature sensor that is used for temperature test is positioned at the end that described electrode divides syringe needle and is provided with the two or more points for measuring temperature that can measure from center, the spherical thermal treatment zone of described class to the thermograde of its external boundary, and the other end connects temperature survey and controller.
The material of described electrode inner core is the titanium alloy memory metal.
Described multiple spot fibre optic temperature sensor is used for the end end of a thermometric end for circular-arc.
Described multiple spot fibre optic temperature sensor moves to the spherical thermal treatment zone of class synchronously with described electrode inner core.
Described multiple spot fibre optic temperature sensor moves separately, and the end that described multiple spot fibre optic temperature sensor is connected with described temperature survey and controller is provided with the reference mark that is used to indicate described multiple spot fibre optic temperature sensor insertion depth.
Spacing between the described plural point for measuring temperature equates.
Described trocar sheath is the rustless steel body.
Beneficial effect after the employing technique scheme is: the local temperature control thermotherapy of the multipole memory metal cerebral tumor of the present utility model electrode, adopt the titanium alloy memory wire to prepare electrode and divide syringe needle, it can be undertaken by a fixation locus in flexible turnover cerebral tissue process, and the needle track surrouding brain tissue is not had the damage of shearing; Electrode divides syringe needle terminal for circular-arc, effectively reduces the probability that punctures blood vessel; Adopt the multiple spot fibre optic temperature sensor, accurately measure from the center of the spherical thermal treatment zone of class that electrode minute hand capitiform becomes to the thermograde of its external boundary; Power according to the monitoring feedback regulation radio frequency heating apparatus of temperature survey and controller makes tumor boundaries district temperature maintenance in claimed range, reduces the situation that produces the eschar adhesion.
Description of drawings
Fig. 1 is the structural representation of the local temperature control thermotherapy of multipole memory metal cerebral tumor electrode in this utility model;
Fig. 2 is the enlarged diagram of the A portion among Fig. 1;
Fig. 3 is the cross-sectional schematic of the B-B line among Fig. 1;
Fig. 4 is the user mode sketch map of the local temperature control thermotherapy of multipole memory metal cerebral tumor electrode in this utility model.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment in this utility model is described in further detail.
As shown in Figure 1, the local temperature control thermotherapy of the multipole memory metal cerebral tumor of the present utility model electrode includes trocar sheath 1, electrode inner core 2, multiple spot fibre optic temperature sensor 3 and set bolt 4, wherein, trocar sheath 1 is as a utmost point of described thermotherapy electrode, and electrode inner core 2 is as another utmost point of described thermotherapy electrode.
The inside of trocar sheath 1 has been installed with electrode inner core 2, the front end that is used for the electrode inner core 2 of thermotherapy heating is divided at least two electrode and divides syringe needle 22, and each electrode divides the end of syringe needle 22 to be respectively circular-arc, as shown in Figure 2, running into blood vessel can slip over from the side, and difficult blood vessel is caused stabbed.The rear end is provided with reference mark 21 indicating the insertion depth of electrode inner core 2, the end, rear end that has reference mark 21 of electrode inner core 2 and trocar sheath 1 be connected with the two poles of the earth of radio frequency heating apparatus 5 respectively (as shown in Figure 4).Electrode inner core 2 can be made for the titanium alloy memory wire, utilizes the memory function of titanium alloy metal, makes electrode divide syringe needle 22 to walk along single track in telescopic process, thereby avoids the shearing damage to surrouding brain tissue.Electrode divides syringe needle 22 to stretch out trocar sheath 1 back and is umbrella shape by its predetermined shape memory and scatters, and forms a class sphere thermal treatment zone.Electrode divides the shape of syringe needle 22 and size arbitrarily, to adapt to different parts and different size tumor is advisable.
Electrode inner core 2 internal sleeve are provided with multiple spot fibre optic temperature sensor 3, and as shown in Figure 3, multiple spot fibre optic temperature sensor 3 is used to test the temperature of its region.The end that electrode divides syringe needle 22 that is positioned at of multiple spot fibre optic temperature sensor 3 is provided with two or more point for measuring temperature (not shown), can accurately measure thermograde from center, the spherical thermal treatment zone of described class to its external boundary, and the spacing between the described plural point for measuring temperature can equate.The other end of multiple spot fibre optic temperature sensor 3 and temperature survey be connected with controller 6 (as shown in Figure 4).Described multiple spot fibre optic temperature sensor 3 is used for the end end of a thermometric end also for circular-arc, can effectively reduce the possibility of multiple spot fibre optic temperature sensor 3 injured blood vessel in moving process.
The moving of multiple spot fibre optic temperature sensor 3 that is located in electrode inner core 2 inside can indicate the insertion depth of electrode inner core 2 and multiple spot fibre optic temperature sensor 3 with electrode inner core 2 same moved further by the reference mark 21 of electrode inner core 2.In addition, described multiple spot fibre optic temperature sensor 3 can also be movable in trocar sheath 1 separately, multiple spot fibre optic temperature sensor 3 with temperature survey and a end that controller 6 is connected on the reference mark (not shown) is set, reference mark can indicate the insertion depth of multiple spot fibre optic temperature sensor 3 so that carry out move operation.
When undergoing surgery, multiple spot fibre optic temperature sensor 3 is connected with controller 6 with temperature survey, with test and the control of carrying out temperature.Electrode inner core 2 is connected with radio frequency heating apparatus 5, can carries out the heating of thermotherapy.Set bolt 4 is fixed on the bone hole of skull, the trocar sheath 1 that after nut is unclamped inside is installed with electrode inner core 2 and multiple spot fibre optic temperature sensor 3 inserts in the cerebral tissue, tightens up behind the nut whole trocar sheath 1 relative fixed.Stretching out electrode divides syringe needle 22 and multiple spot fibre optic temperature sensor 3 to arrive borderline tumor, form the spherical thermal treatment zone of class, temperature level according to multiple spot fibre optic temperature sensor 3 and temperature survey and controller 6 tests, regulate radio frequency heating apparatus 5 and carry out the radio frequency heating, make tumor boundaries district temperature maintenance in suitable scope (42-45 ℃).Reclaim electrode after treatment is finished earlier and divide syringe needle 22 and multiple spot fibre optic temperature sensor 3 in trocar sheath 1, extract whole trocar sheath 1 again out, thereby finish the tumor by local thermotherapy, as shown in Figure 4.
The above only is a preferable possible embodiments of the present utility model, is not in order to limit scope of the present utility model.
Claims (7)
1, the local temperature control thermotherapy of a kind of multipole memory metal cerebral tumor electrode, include: the surface be provided with insulating barrier the described thermotherapy electrode of conduct a utmost point trocar sheath, as electrode inner core, multiple spot fibre optic temperature sensor and the set bolt of another utmost point of described thermotherapy electrode, it is characterized in that
Described electrode inner core is arranged in the described trocar sheath, the described electrode inner core front end that is used for thermotherapy heating is divided at least two electrode and divides syringe needle, described each electrode divides the end of syringe needle to be respectively circular-arc, the rear end is provided with the reference mark that is used to indicate described electrode inner core insertion depth, end, the rear end of described electrode inner core and described trocar sheath are connected with the two poles of the earth of radio frequency heating apparatus respectively, stretch out behind the described trocar sheath to be the described electrode minute hand capitiform that umbrella shape scatters by its predetermined shape memory and to become the spherical thermal treatment zone of class;
Described multiple spot fibre optic temperature sensor is located in in-core in the described electrode, the described multiple spot fibre optic temperature sensor that is used for temperature test is positioned at the end that described electrode divides syringe needle and is provided with the two or more points for measuring temperature that can measure from center, the spherical thermal treatment zone of described class to the thermograde of its external boundary, and the other end connects temperature survey and controller.
2, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode is characterized in that the material of described electrode inner core is the titanium alloy memory metal.
3, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode is characterized in that, described multiple spot fibre optic temperature sensor is used for the end end of a thermometric end for circular-arc.
4, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode is characterized in that, described multiple spot fibre optic temperature sensor moves to the spherical thermal treatment zone of class synchronously with described electrode inner core.
5, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode, it is characterized in that, described multiple spot fibre optic temperature sensor moves separately, and the end that described multiple spot fibre optic temperature sensor is connected with described temperature survey and controller is provided with the reference mark that is used to indicate described multiple spot fibre optic temperature sensor insertion depth.
6, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode is characterized in that the spacing between the described plural point for measuring temperature equates.
7, the local temperature control thermotherapy of the multipole memory metal cerebral tumor according to claim 1 electrode is characterized in that described trocar sheath is the rustless steel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201088414U CN201208301Y (en) | 2008-06-25 | 2008-06-25 | Multiple electrode memory metal brain tumor local temperature-controlled heat treatment electrode |
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| CNU2008201088414U CN201208301Y (en) | 2008-06-25 | 2008-06-25 | Multiple electrode memory metal brain tumor local temperature-controlled heat treatment electrode |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499665A (en) * | 2011-10-12 | 2012-06-20 | 武汉理工大学 | Optical fiber sensing based micro intracranial multiparameter sensor |
| CN106108895A (en) * | 2016-08-18 | 2016-11-16 | 常州瑞神安医疗器械有限公司 | Intracranial electrode |
| CN107928859A (en) * | 2016-10-13 | 2018-04-20 | 北京至感传感器技术研究院有限公司 | Component joints and noninvasive therapeutic apparatus for treating tumor for noninvasive therapeutic apparatus for treating tumor |
| CN108937874A (en) * | 2017-05-24 | 2018-12-07 | 杭州普惠医疗器械有限公司 | A kind of multi-functional cranium brain monitor system |
| CN109758161A (en) * | 2019-01-30 | 2019-05-17 | 西安交通大学 | A kind of deep brain stimulation electrode of detectable brain deep nuclei blood oxygen level |
| CN109938831A (en) * | 2019-03-12 | 2019-06-28 | 南京航空航天大学 | A kind of tumor microwave ablation needle with optical fiber temperature-measurement function |
| CN110151305A (en) * | 2019-04-30 | 2019-08-23 | 昆山雷盛医疗科技有限公司 | Without scale hollow lumen radio frequency ablation probe |
| CN111603239A (en) * | 2020-04-22 | 2020-09-01 | 哈尔滨医科大学 | Microwave device for tumor ablation treatment |
| RU2794934C1 (en) * | 2022-03-18 | 2023-04-25 | Федеральное Государственное Автономное учреждение Национальный медицинский исследовательский центр нейрохирургии имени академика Н.Н. Бурденко Министерства Здравоохранения Российской Федерации | Electrode for intraoperative mapping of functional brain networks |
-
2008
- 2008-06-25 CN CNU2008201088414U patent/CN201208301Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499665A (en) * | 2011-10-12 | 2012-06-20 | 武汉理工大学 | Optical fiber sensing based micro intracranial multiparameter sensor |
| CN102499665B (en) * | 2011-10-12 | 2014-05-14 | 武汉理工大学 | Optical fiber sensing based micro intracranial multiparameter sensor |
| CN106108895A (en) * | 2016-08-18 | 2016-11-16 | 常州瑞神安医疗器械有限公司 | Intracranial electrode |
| CN106108895B (en) * | 2016-08-18 | 2023-04-14 | 常州瑞神安医疗器械有限公司 | <xnotran></xnotran> |
| CN107928859A (en) * | 2016-10-13 | 2018-04-20 | 北京至感传感器技术研究院有限公司 | Component joints and noninvasive therapeutic apparatus for treating tumor for noninvasive therapeutic apparatus for treating tumor |
| CN108937874A (en) * | 2017-05-24 | 2018-12-07 | 杭州普惠医疗器械有限公司 | A kind of multi-functional cranium brain monitor system |
| CN109758161A (en) * | 2019-01-30 | 2019-05-17 | 西安交通大学 | A kind of deep brain stimulation electrode of detectable brain deep nuclei blood oxygen level |
| CN109938831A (en) * | 2019-03-12 | 2019-06-28 | 南京航空航天大学 | A kind of tumor microwave ablation needle with optical fiber temperature-measurement function |
| CN110151305A (en) * | 2019-04-30 | 2019-08-23 | 昆山雷盛医疗科技有限公司 | Without scale hollow lumen radio frequency ablation probe |
| CN111603239A (en) * | 2020-04-22 | 2020-09-01 | 哈尔滨医科大学 | Microwave device for tumor ablation treatment |
| CN111603239B (en) * | 2020-04-22 | 2023-06-02 | 哈尔滨医科大学 | Microwave device for tumor ablation treatment |
| RU2794934C1 (en) * | 2022-03-18 | 2023-04-25 | Федеральное Государственное Автономное учреждение Национальный медицинский исследовательский центр нейрохирургии имени академика Н.Н. Бурденко Министерства Здравоохранения Российской Федерации | Electrode for intraoperative mapping of functional brain networks |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20110625 |