CN104188721A - Novel ablation monopolar needle - Google Patents
Novel ablation monopolar needle Download PDFInfo
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- CN104188721A CN104188721A CN201410480289.1A CN201410480289A CN104188721A CN 104188721 A CN104188721 A CN 104188721A CN 201410480289 A CN201410480289 A CN 201410480289A CN 104188721 A CN104188721 A CN 104188721A
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- needle
- syringe needle
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- shank
- ablation
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Abstract
A novel ablation monopolar needle is characterized by comprising a needle bar (1), a needle body (2), a thermosensitive resistance coating (3), an insulating tube (4) and an external cable connecting end (5). The needle bar (1) and the needle body (2) are integrated, the needle body (2) comprises at least one acute tip, the diameter of the needle bar (1) is smaller than the maximum diameter of the needle body (2), the insulating tube (4) sleeves the needle bar (1), the surface of the needle body (2) is provided with the thermosensitive resistance coating (3), and the tail end of the needle bar (1) is the external cable connecting end (5). According to the novel ablation monopolar needle, the characteristic of the PTC thermistor is utilized, a radio frequency generator is combined, and the needle is used for heating and treating the target biological tissue specially, the heat treatment temperature ranges from 90 DEG C to 100 DEG C, so that the ablation needle is prevented from bonding during issue solidification, and risks of complications of rebleeding are avoided.
Description
Technical field
The present invention relates to Medical Instruments technical field, especially a kind of novel one pole pin that melts.
Background technology
Radio-frequency (RF) ablation (RFA) is a kind of Wicresoft interventional therapy method, and nineteen ninety Rossi and Mc gahan etc. reports that RFA is applied to melting of animal livers tissue at first, treats subsequently the mankind's liver neoplasm by this technology.At present, RFA technology has been widely used in treating the disease of the multiple organ of whole body, except can deactivation tumor, can also reduce tumor load and reach pain relieving, reduce the objects such as hormone secretion, also have in addition research to be applied to non-tumor disease as treatment hypersplenism (spleen is high) etc.RFA is a kind of knub thermotherapy, its ultimate principle is to utilize heat energy damage tumor tissues, by electrode, send rf wave and make ion and the vibration of polarity macromole in its surrounding tissue clash into frictional heating, tumor area is heated to effectively treat temperature range and maintain certain hour with killing off tumor cells.Meanwhile, radio frequency thermal effect should be able to make the blood vessel of surrounding tissue solidify, and forms a reaction zone, makes it to prevent neoplasm metastasis to tumor feeding.
For the control of degree of ablation, existing radio-frequency ablation technique adopts the good temperature of impedance Control to control two kinds of modes conventionally.
Impedance Control adopts the impedance of 400-500 ohm, but concrete impedance is difficult to flexible adjustment, and the too small meeting of impedance causes finishing in advance to melt, and melts not thoroughly, and impedance is excessive, easily causes again that tissue is sticky to be sticked.
Temperature is controlled and is conventionally arranged 105 degrees Celsius for temperature threshold values, easily causes local ablation degree inhomogeneous.
PTC critesistor is the semiconductor resistor that a kind of typical case has temperature sensitivity, while surpassing certain temperature, its resistance value is along with the rising of temperature is increasing of step evolution, PTC is the abbreviation of PositiveTemperatureCoefficient, the meaning is positive temperature coefficient, very large semi-conducting material or the components and parts of general reference positive temperature coefficient.Conventionally the PTC that we mention refers to semistor, is called for short PTC critesistor.Its resistance value of semistor is along with the rising of PTC critesistor body temperature presents the increase of step evolution, and temperature is higher, and resistance value is larger.
The present invention will utilize the characteristic of PTC critesistor, designs a kind of novel one pole pin that melts of Based Intelligent Control.
Summary of the invention
The object of the present invention is to provide a kind of novel one pole pin that melts, utilize the characteristic of PTC critesistor to overcome impedance Control and temperature controlled drawback.
Technical scheme of the present invention is:
A kind of novel one pole pin that melts, comprise shank 1, syringe needle 2, critesistor coating 3, insulation tube 4 and external cable link 5, described shank 1 is an integral body with syringe needle 2, syringe needle 2 has at least one tip that is acute angle, the diameter of shank 1 is less than the maximum gauge of syringe needle 2, on shank 1, be arranged with insulation tube 4, syringe needle 2 surfaces are provided with critesistor coating 3, and shank 1 end is external cable link 5.
The material of described insulation tube 4 is politef (PTFE) or Teflon.
The material of described shank 1, syringe needle 2 is medical 304 stainless steel materials.
The angle at described syringe needle 2 tips is 10 °-20 °.Be preferably 14.5 °
The invention has the beneficial effects as follows:
Novel this characteristic that one pole pin utilizes PTC critesistor that melts of the present invention, coordinates radio-frequency signal generator, is designed to for heat treated target organism tissue targetedly.Heat-treatment temperature range, for example approximately 90 ℃ to 100 ℃, thus while realizing solidified structure, ablation needle is not sticky glutinous, does not cause again hemorrhage complication equivalent risk.
The novel one pole pin that melts of the present invention utilizes PTC thermistor temp higher, the characteristic that resistance value is larger, add that PTC critesistor of the present invention is distributed in the Zone Full melting, be different from existing whole break-make, the present invention can realize local break-make, until ablation areas all reach in a organized way the predetermined temperature that melts, realize the accurate control of melting, make target complete target position all can reach fully and completely ablation effect.And, once the tissue of ablation areas reaches predetermined temperature, just automatically disconnect, can not cause excessive injury to tissue.
Accompanying drawing explanation
Fig. 1 is the novel structural representation that melts one pole pin of the present invention.
In figure: 1 is that shank, 2 is that syringe needle, 3 is that critesistor coating, 4 is that insulation tube, 5 is external cable link.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 1, a kind of novel one pole pin that melts, comprise shank 1, syringe needle 2, critesistor coating 3, insulation tube 4 and external cable link 5, described shank 1 is an integral body with syringe needle 2, syringe needle 2 has at least one tip that is acute angle, and the diameter of shank 1 is less than the maximum gauge of syringe needle 2, is arranged with insulation tube 4 on shank 1, syringe needle 2 surfaces are provided with critesistor coating 3, and shank 1 end is external cable link 5.
The material of insulation tube 4 is politef (PTFE) or Teflon.
The material of shank 1, syringe needle 2 is medical 304 stainless steel materials.
The angle at syringe needle 2 tips is 10 °-20 °.Be preferably 14.5 °
For example, the novel one pole pin that melts of the present invention: external diameter
internal diameter
insulated sleeve material: Teflon, color is transparent, before pyrocondensation, external diameter 2.0 wall thickness 0.05, after pyrocondensation, external diameter 1.5, wall thickness 0.1.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; various modification and improvement that in this area, common engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention, the technology contents that the present invention asks for protection is all documented in claims.
Claims (4)
1. the novel one pole pin that melts, it is characterized in that comprising shank (1), syringe needle (2), critesistor coating (3), insulation tube (4) and external cable link (5), described shank (1) is an integral body with syringe needle (2), syringe needle (2) has the tip that at least one is acute angle, the diameter of shank (1) is less than the maximum gauge of syringe needle (2), on shank (1), be arranged with insulation tube (4), syringe needle (2) surface is provided with critesistor coating (3), and shank (1) end is external cable link (5).
2. a kind of novel one pole pin that melts according to claim 1, the material that it is characterized in that described insulation tube (4) is politef (PTFE) or Teflon.
3. a kind of novel one pole pin that melts according to claim 1, the material that it is characterized in that described shank (1), syringe needle (2) is medical 304 stainless steel materials.
4. a kind of novel one pole pin that melts according to claim 1, is characterized in that the most advanced and sophisticated angle of described syringe needle (2) is 10 °-20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480289.1A CN104188721A (en) | 2014-09-18 | 2014-09-18 | Novel ablation monopolar needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480289.1A CN104188721A (en) | 2014-09-18 | 2014-09-18 | Novel ablation monopolar needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104188721A true CN104188721A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410480289.1A Pending CN104188721A (en) | 2014-09-18 | 2014-09-18 | Novel ablation monopolar needle |
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| CN (1) | CN104188721A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266895A (en) * | 2015-09-07 | 2016-01-27 | 倪家骧 | Plasma radio frequency ablation puncture trocar composite set composite set |
| WO2016041370A1 (en) * | 2014-09-18 | 2016-03-24 | Angel Medical Technology (Nanjing) Co., Ltd. | Ablation device |
| WO2017000362A1 (en) * | 2015-07-02 | 2017-01-05 | 安隽医疗科技(南京)有限公司 | Radiofrequency ablation catheter and treatment device containing radiofrequency ablation catheter |
| CN107647909A (en) * | 2016-07-26 | 2018-02-02 | 安徽硕金医疗设备有限公司 | A kind of microwave melt needle of magnetic resonance compatible |
| CN112773502A (en) * | 2020-11-03 | 2021-05-11 | 安隽医疗科技(南京)有限公司 | Disposable electrode device for hemorrhoid ablation operation |
Citations (7)
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| CN2396787Y (en) * | 1999-10-14 | 2000-09-20 | 北京东方康业科贸有限责任公司 | Temp. control tumor therapeutic probe |
| US6149646A (en) * | 1999-02-02 | 2000-11-21 | Linvatec Corporation | Monopolar tissue ablator |
| US20040199161A1 (en) * | 2003-02-14 | 2004-10-07 | Surgrx, Inc., A Delaware Corporation | Electrosurgical probe and method of use |
| CN101810505A (en) * | 2009-02-19 | 2010-08-25 | 金华职业技术学院 | Portable safe cervical therapy apparatus |
| CN202143650U (en) * | 2011-06-30 | 2012-02-15 | 陕西黄河集团有限公司 | Treatment needle for radio frequency instrument |
| CN203555829U (en) * | 2013-11-29 | 2014-04-23 | 浙江伏尔特医疗器械有限公司 | Radiofrequency puncture needle |
| CN204293254U (en) * | 2014-09-18 | 2015-04-29 | 安隽医疗科技(南京)有限公司 | One is novel melts one pole pin |
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2014
- 2014-09-18 CN CN201410480289.1A patent/CN104188721A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149646A (en) * | 1999-02-02 | 2000-11-21 | Linvatec Corporation | Monopolar tissue ablator |
| CN2396787Y (en) * | 1999-10-14 | 2000-09-20 | 北京东方康业科贸有限责任公司 | Temp. control tumor therapeutic probe |
| US20040199161A1 (en) * | 2003-02-14 | 2004-10-07 | Surgrx, Inc., A Delaware Corporation | Electrosurgical probe and method of use |
| CN101810505A (en) * | 2009-02-19 | 2010-08-25 | 金华职业技术学院 | Portable safe cervical therapy apparatus |
| CN202143650U (en) * | 2011-06-30 | 2012-02-15 | 陕西黄河集团有限公司 | Treatment needle for radio frequency instrument |
| CN203555829U (en) * | 2013-11-29 | 2014-04-23 | 浙江伏尔特医疗器械有限公司 | Radiofrequency puncture needle |
| CN204293254U (en) * | 2014-09-18 | 2015-04-29 | 安隽医疗科技(南京)有限公司 | One is novel melts one pole pin |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016041370A1 (en) * | 2014-09-18 | 2016-03-24 | Angel Medical Technology (Nanjing) Co., Ltd. | Ablation device |
| WO2017000362A1 (en) * | 2015-07-02 | 2017-01-05 | 安隽医疗科技(南京)有限公司 | Radiofrequency ablation catheter and treatment device containing radiofrequency ablation catheter |
| CN105266895A (en) * | 2015-09-07 | 2016-01-27 | 倪家骧 | Plasma radio frequency ablation puncture trocar composite set composite set |
| CN107647909A (en) * | 2016-07-26 | 2018-02-02 | 安徽硕金医疗设备有限公司 | A kind of microwave melt needle of magnetic resonance compatible |
| CN112773502A (en) * | 2020-11-03 | 2021-05-11 | 安隽医疗科技(南京)有限公司 | Disposable electrode device for hemorrhoid ablation operation |
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Application publication date: 20141210 |