CN104337562B - Special bipolar embedded cap directional microelectrode for intracorporeal lithotriptor - Google Patents
Special bipolar embedded cap directional microelectrode for intracorporeal lithotriptor Download PDFInfo
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- CN104337562B CN104337562B CN201410528638.2A CN201410528638A CN104337562B CN 104337562 B CN104337562 B CN 104337562B CN 201410528638 A CN201410528638 A CN 201410528638A CN 104337562 B CN104337562 B CN 104337562B
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- electrode
- voltage
- metal
- insulating layer
- resistant insulating
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- 238000002686 lithotriptor Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 71
- 239000002184 metal Substances 0.000 claims abstract description 71
- 238000004806 packaging method and process Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 26
- 229910010293 ceramic material Inorganic materials 0.000 claims description 11
- 229920001721 polyimide Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000007459 endoscopic retrograde cholangiopancreatography Methods 0.000 claims description 3
- 238000001727 in vivo Methods 0.000 claims description 2
- 239000002504 physiological saline solution Substances 0.000 claims description 2
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
Abstract
The special bipolar embedded cap directional microelectrode for the intracorporeal lithotriptor comprises an electrode, wherein the electrode is in a bipolar parallel electrode structure and comprises two metal leads; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode.
Description
Technical Field
The invention belongs to an energy conduction component special for an intracorporeal lithotriptor for an endoscope, which is suitable for inspection channels of various medical endoscopes (such as a fiber choledochoscope, a hard cholecystoscope, a duodenoscope, a gastroscope, a cystoscope, a ureteroscope and a percutaneous nephroscope).
Background
Calculus in vivo belongs to frequently encountered diseases and common diseases, including calculus of liver and gall system, urinary system and digestive system, the disease cause is complex, and if the calculus is not treated in time, the health and the life of people can be seriously threatened. The lithotripter for the endoscope directly introduces lithotriptic energy into the body through the examination channels of endoscopes such as a fiber choledochoscope, a hard cholecystoscope, a duodenoscope, a gastroscope, a cystoscope, a ureteroscope and a percutaneous nephroscope, aims at the calculus and releases the energy so as to break the calculus, and the energy must be directionally conducted through a special microelectrode.
Disclosure of Invention
According to the experimental analysis of the output energy and the sound field, the electrode structures and shapes of different specifications, the distance between the positive electrode and the negative electrode and the arrangement direction are optimally designed, and the optimal design is shown in figure 1, so that the discharge energy can reach the maximum in the physiological saline. Because of being matched with an examination channel of an endoscope, a discharge electrode of the intracorporeal lithotripter adopts a bipolar electrode with the diameter less than 1.5 mm, and the discharge distance between the electrodes and the discharge angle can be further adjusted conveniently.
The technical scheme of the invention is as follows: the special bipolar embedded cap directional microelectrode for the intracorporeal lithotriptor comprises an electrode and is characterized in that: the electrode is of a bipolar parallel electrode structure and comprises two metal leads; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode.
Furthermore, the outer diameter of the electrode is less than or equal to 1.5 mm; the length of the electrode is 1.8-3 m.
Furthermore, the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.2-0.22 mm.
Further, the length of the metal embedded cap is 7 mm-8 mm.
Further, the thickness of the voltage-resistant insulating layer is 0.1 mm-0.15 mm.
Further, the thickness of the outer insulating packaging layer is 0.1 mm-0.22 mm.
Another object of the present invention is to provide an electrode for a medical endoscope, comprising an electrode having a bipolar parallel electrode structure, which comprises two metal wires; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode;
the diameter of the electrode is 1.5 mm, and the length of the electrode is 1.8 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.22 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material, and the thickness of the voltage-resistant insulating layer is 0.15 mm; the outer insulating packaging layer is made of polyether-ether-ketone material, and the thickness of the outer insulating packaging layer is 0.22 mm; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
The voltage-resistant insulating layer is made of a polyimide film material and wraps a metal wire in a spiral winding mode; the voltage-resistant insulating layer is made of a high-voltage ceramic material and is formed by one-time plastic compression of the high-voltage ceramic.
Another object of the present invention is to provide an ERCP dedicated electrode, wherein the electrode has a bipolar parallel electrode structure, and comprises two metal wires; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode;
the diameter of the electrode is less than or equal to 1.2 mm, and the length of the electrode is 3 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.2 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material and has a thickness of 0.1 mm; the outer insulating packaging layer is made of polyether-ether-ketone material and is 0.1 mm thick; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
The voltage-resistant insulating layer is made of a polyimide film material and wraps a metal wire in a spiral winding mode; the voltage-resistant insulating layer is made of a high-voltage ceramic material and is formed by one-time plastic compression of the high-voltage ceramic.
Has the advantages that: the embedded cap type insulating sleeve with the built-in electrode adjusts the discharge distance between the electrodes and the top end direction of the double electrodes to be suitable for the optimal focusing angle of discharge energy, and the energy is more concentrated by adopting the embedded metal cap design; the equal ablation of the anode and the cathode ensures that the discharge plane is vertical to the electrodes, so that most energy is concentrated on the calculus; normal discharge in normal saline is guaranteed, and discharge in air is avoided, so that energy is concentrated, and discharge efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of parallel microelectrode discharge energy.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1 as shown in fig. 1, the bipolar embedded cap directional microelectrode specially used for the intracorporeal lithotriptor comprises an electrode which is in a bipolar parallel electrode structure and comprises two metal leads 1; a voltage-resistant insulating layer 2 is arranged outside the metal wire 1, and an outer insulating packaging layer 3 is coated outside the voltage-resistant insulating layer 2; an electrode tip metal embedded cap 4 is arranged outside the outer insulating packaging layer 3, and the metal embedded cap 4 is arranged at the discharge tail end of the electrode.
The outer diameter of the electrode is less than or equal to 1.5 mm, and the length of the electrode is 1.8-3 m; the metal wire is made of silver-plated red copper material, and the outer diameter is 0.2-0.22 mm; the length of the metal embedded cap is 7-8 mm; the thickness of the voltage-resistant insulating layer is 0.1-0.15 mm; the thickness of the outer insulating packaging layer is 0.1 mm-0.22 mm.
Example 2, an electrode for a medical endoscope includes an electrode having a bipolar parallel electrode structure including two metal wires; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode;
the diameter of the electrode is 1.5 mm, and the length of the electrode is 1.8 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.22 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material, and the thickness of the voltage-resistant insulating layer is 0.15 mm; the outer insulating packaging layer is made of polyether-ether-ketone material, and the thickness of the outer insulating packaging layer is 0.22 mm; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
The voltage-resistant insulating layer is made of a polyimide film material and wraps a metal wire in a spiral winding mode; the voltage-resistant insulating layer is made of a high-voltage ceramic material and is formed by one-time plastic compression of the high-voltage ceramic.
the diameter of the electrode is less than or equal to 1.2 mm, and the length of the electrode is 3 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.2 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material and has a thickness of 0.1 mm; the outer insulating packaging layer is made of polyether-ether-ketone material and is 0.1 mm thick; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
The voltage-resistant insulating layer is made of a polyimide film material and wraps a metal wire in a spiral winding mode; the voltage-resistant insulating layer is made of a high-voltage ceramic material and is formed by one-time plastic compression of the high-voltage ceramic.
As shown in figure 2, the parallel electrode structure is adopted in the invention, the energy generated by the discharge is mainly concentrated at the axial near end of the electrode, so that the shock wave formed by each discharge is concentrated on the calculus right in front, and only less than 15% of the energy acts on the gallbladder wall and the tissues at an angle less than 30 degrees.
Claims (5)
1. The special bipolar embedded cap directional microelectrode for the intracorporeal lithotriptor comprises an electrode and is characterized in that: the electrode is of a bipolar parallel electrode structure and comprises two metal leads; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode; the special bipolar embedded cap directional microelectrode for the in vivo lithotripter performs optimized design on electrode structures and shapes of different specifications, distances between a positive electrode and a negative electrode and an arrangement direction according to test analysis on output energy and a sound field so as to enable discharge energy to reach the maximum in physiological saline;
the outer diameter of the electrode is less than or equal to 1.5 mm;
the metal wire is made of silver-plated red copper material, and the outer diameter is 0.2-0.22 mm;
the length of the metal embedded cap is 7-8 mm;
the thickness of the voltage-resistant insulating layer is 0.1-0.15 mm;
the thickness of the outer insulating packaging layer is 0.1 mm-0.22 mm.
2. The special bipolar embedded cap directional microelectrode for an intracorporeal lithotriptor of claim 1, wherein: the length of the electrode is 1.8-3 m.
3. An electrode for a medical endoscope comprises an electrode, wherein the electrode is in a bipolar parallel electrode structure and comprises two metal leads; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode;
the diameter of the electrode is 1.5 mm, and the length of the electrode is 1.8 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.22 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material, and the thickness of the voltage-resistant insulating layer is 0.15 mm; the outer insulating packaging layer is made of polyether-ether-ketone material, and the thickness of the outer insulating packaging layer is 0.22 mm; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
4. The electrode for a medical endoscope according to claim 3, characterized in that: the voltage-resistant insulating layer is made of a polyimide film material and wraps a metal wire in a spiral winding mode; the voltage-resistant insulating layer is made of a high-voltage ceramic material and is formed by one-time plastic compression of the high-voltage ceramic.
5. An electrode for ERCP comprises an electrode, wherein the electrode is in a bipolar parallel electrode structure and comprises two metal leads; a voltage-resistant insulating layer is arranged outside the metal wire, and an outer insulating packaging layer is coated outside the voltage-resistant insulating layer; an electrode tip metal embedded cap is arranged outside the outer insulating packaging layer, and the metal embedded cap is arranged at the discharge tail end of the electrode; the diameter of the electrode is less than or equal to 1.2 mm, and the length of the electrode is 3 m; the metal wire is made of silver-plated red copper material, and the outer diameter of the metal wire is 0.2 mm; the voltage-resistant insulating layer is made of a polyimide film material or a high-voltage ceramic material and has a thickness of 0.1 mm; the outer insulating packaging layer is made of polyether-ether-ketone material and is 0.1 mm thick; the metal embedded cap is made of titanium alloy material and has a length of 7 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528638.2A CN104337562B (en) | 2014-10-10 | 2014-10-10 | Special bipolar embedded cap directional microelectrode for intracorporeal lithotriptor |
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| CN201410528638.2A CN104337562B (en) | 2014-10-10 | 2014-10-10 | Special bipolar embedded cap directional microelectrode for intracorporeal lithotriptor |
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| CN104337562A CN104337562A (en) | 2015-02-11 |
| CN104337562B true CN104337562B (en) | 2020-04-21 |
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| CN112334082A (en) * | 2018-06-26 | 2021-02-05 | 奥林巴斯株式会社 | Calculus crushing device |
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| CN2631172Y (en) * | 2002-08-28 | 2004-08-04 | 王捷 | Plastic-formed horn wire |
| CN101770831A (en) * | 2010-01-15 | 2010-07-07 | 上海特缆电工科技有限公司 | High-temperature resistant dual-layer insulating seamless lapped wire |
| CN202887787U (en) * | 2012-10-31 | 2013-04-17 | 江苏永鼎电气有限公司 | Strong-radiation-resisting low-noise cable |
| CN202905219U (en) * | 2012-11-27 | 2013-04-24 | 立昌科技（赣州）有限公司 | Wire |
| CN203300272U (en) * | 2013-05-04 | 2013-11-20 | 安徽省康利亚实业有限公司 | High-temperature and strong-radiation resistance low-noise cable capable of detecting minimal signals |
| CN103680752B (en) * | 2013-12-09 | 2016-06-08 | 泰州日顺电器发展有限公司 | A kind of coaxial cable and manufacturing process thereof |
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Patent Citations (5)
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|---|---|---|---|---|
| CN2555004Y (en) * | 2002-07-31 | 2003-06-11 | 西安远鸿测控技术有限公司 | Internal micro-explosion crushing stone instrument |
| CN2662846Y (en) * | 2003-09-28 | 2004-12-15 | 四川省康迪医疗设备有限责任公司 | Thin-diameter flexible guide electrode |
| US7842006B2 (en) * | 2006-11-17 | 2010-11-30 | Cfd Research Corporation | Thrombectomy microcatheter |
| CN203564304U (en) * | 2013-07-08 | 2014-04-30 | 刘京山 | Shock-wave guide tube of in-vivo electro-hydraulic lithotripsy electrode |
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| CN104337562A (en) | 2015-02-11 |
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Effective date of registration: 20170427 Address after: 316100 Zhejiang city of Zhoushan province Putuo District Shenjiamen Lu Street No. 61, traffic shipping building room 2002-2004 Applicant after: ZHEJIANG RONGXIN MEDICAL TECHNOLOGY Co.,Ltd. Address before: 226300 Jiangsu, Tongzhou District Jinsha Town, East Road, the first of the people of the first Venture Park 958 Applicant before: JIANGSU RENHONG MEDICAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240423 Address after: Room 301, 3rd Floor, Building 1, Xiaoshan Robot Town Science and Technology Park, No. 389 Hongxing Road, Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province, 311215 Patentee after: Zhejiang Weitai Medical Equipment Co.,Ltd. Country or region after: China Address before: No. 35-8 Huishen Road, Xuefu Industrial Zone, Xiqing District, Tianjin, 300000 Patentee before: Zhongke Yingde (Tianjin) Health Industry Development Co.,Ltd. Country or region before: China |