WO2020153976A1 - Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation - Google Patents

Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation Download PDF

Info

Publication number
WO2020153976A1
WO2020153976A1 PCT/US2019/015319 US2019015319W WO2020153976A1 WO 2020153976 A1 WO2020153976 A1 WO 2020153976A1 US 2019015319 W US2019015319 W US 2019015319W WO 2020153976 A1 WO2020153976 A1 WO 2020153976A1
Authority
WO
WIPO (PCT)
Prior art keywords
sterile disposable
bipolar ablation
ablation needle
disposable bipolar
needle
Prior art date
Application number
PCT/US2019/015319
Other languages
English (en)
Inventor
Daniel Igor BRANOVAN
Original Assignee
Branovan Daniel Igor
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Branovan Daniel Igor filed Critical Branovan Daniel Igor
Priority to PCT/US2019/015319 priority Critical patent/WO2020153976A1/fr
Publication of WO2020153976A1 publication Critical patent/WO2020153976A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1477—Needle-like probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00071—Electrical conductivity
    • A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00321—Head or parts thereof
    • A61B2018/00327—Ear, nose or throat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00505—Urinary tract
    • A61B2018/00511—Kidney
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1425—Needle
    • A61B2018/1427—Needle with a beveled end
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration

Definitions

  • Embodiments relate generally to electrical surgical (or electrosurgery) instruments, and, more particularly, to sterile disposable bipolar ablation instruments (e.g., needles), and systems and methods of using the same.
  • a thyroidectomy may be performed to deal with malignant thyroid tumors, a procedure which unfortunately results in removal of most of the thyroid tissue.
  • undergoing thyroid surgery often poses risks, such as nerve damage or damage to parathyroid glands, and may require that the patient take thyroid hormone supplements following surgery.
  • Alternatives to thyroidectomy are known in the art for non-malignant tumors, including radio frequency (RF) ablation techniques in which the temperature of the target tissue may be raised to a temperature of 60° C. or higher.
  • RF radio frequency
  • the patient’s electrode must have a constant reliable electrical contact with the patient’s body, which in some cases is not always easy to ensure or is not always convenient.
  • high-frequency currents flowing through the patient’s body from the patient’s electrode to an active electrode typically occur through extensive portions of healthy tissues and may have the additional undesirable effects on those tissues. Further, there could be a potential negative impact of these currents upon, for instance, a pacemaker.
  • Bipolar ablation requires existence of two electrodes located close to each other to have impact only on the portion of body located between these electrodes. Unlike monopolar ablation, the bipolar method allows to limit the impact of electric current only to the“area of interest”, and also substantially reduce the exposure time to achieve the desired result
  • coagulation size In general, a tool for a bipolar ablation is used to work on the visible surface. Alternatively, special tools are used with thin parallel conductive electrodes (needles) creating a possibility of impact upon internal areas, such as patent BY 19188 Cl 2015.06.30, used in the treatment of thyroid neoplasms. Nevertheless, the relative bulkiness of the tool, and the presence of two needles with the protruding edge of the insulator on each electrode hinders the penetration and control of their position in the exposure area, increases the size of the wound and may lead to undesirable emotions of the patient.
  • the tools mentioned above may be difficult to sterilize, and may not be suitable as a disposable instrument (e.g., for single use).
  • Some implementations can include a sterile disposable bipolar ablation needle comprising an outer conductor and an inner conductor separated by an insulating layer disposed between the inner conductor and the outer conductor, where the outer conductor is exposed and not covered by an insulating layer.
  • the sterile disposable bipolar ablation needle can further include a first exposed region of the sterile disposable bipolar ablation needle disposed near a proximate end of the sterile disposable bipolar ablation needle, the first exposed region including a first exposed portion of the inner electrode and a first exposed portion of the outer electrode, the first exposed region constructed to provide contact to a connector, and a second exposed region of the sterile disposable bipolar ablation needle disposed near a distal end of the sterile disposable bipolar ablation needle, the second exposed region forming the active region of the sterile disposable bipolar ablation needle and including a second exposed portion of the inner conductor and a second exposed portion of the outer conductor.
  • the sterile disposable bipolar ablation needle can also include a connector coupled to the sterile disposable bipolar ablation needle and having a first contact contacting the first exposed portion of the outer conductor and a second contact contacting the first exposed portion of the inner conductor.
  • the inner conductor and the outer conductor can be formed from stainless steel similar to that used for surgical needles and in a manner similar to that used for surgical needles.
  • the insulating internal dielectric layer can be formed from medical lacquer or other suitable material.
  • the second exposed region of the inner electrode can be about 7mm and the second exposed portion of the outer electrode can be about 7mm.
  • the first exposed portion can include an exposed portion of the first insulating layer.
  • the second exposed portion can include an exposed portion of the first insulating layer.
  • a diameter of the inner needle can be about 0.5mm.
  • a diameter of the outer needle can be about 0.9mm.
  • Some implementations can include a high frequency ablation system having an electrosurgical generator, and a coaxial bipolar ablation instrument (as described above).
  • the system can also include an adapter cable having a first end constructed to be coupled to the instrument and a second end constructed to connect to the electrosurgical generator, a power supply coupled to the electrosurgical generator; and a control switch coupled to the
  • the system can also include a connector coupled to the instrument and having a first contact contacting the first exposed portion of the outer needle and a second contact contacting the first exposed portion of the inner needle.
  • the inner needle and the outer needle can be formed from stainless steel surgical needles or needles similar to the needles used for spinal tap and spinal anesthesia.
  • the insulating layer can be formed from medical lacquer.
  • the second exposed region of the inner needle can be about 7mm and the second exposed portion of the outer needle can be about 7mm.
  • the first exposed portion can include an exposed portion of the first insulating layer.
  • the second exposed portion can include an exposed portion of the first insulating layer.
  • a diameter of the inner needle can be about 0.5mm.
  • a diameter of the outer needle can be about 0.9mm.
  • Some implementations can include a method for ablating a tissue in a patient comprises the steps of: obtaining an instrument having both a first electrode assembly and a second electrode assembly retained in a handle, the handle retaining the first electrode section in a generally parallel relationship with the second electrode section so as to define a substantially linear bipolar ablation zone between a portion of the first electrode assembly and a portion of the second electrode assembly, the bipolar ablation zone being in an offset and substantially parallel alignment with an axis of the handle; inserting the bipolar ablation zone into a patient proximate a region containing the tissue; determining that a portion of the tissue has been positioned within the bipolar ablation zone; powering the first electrode assembly and the second electrode assembly for a predetermined time period so as to produce a predefined level of ablative RF power in the bipolar ablation zone; and removing the bipolar ablation zone from the patient.
  • FIG. 1 is a diagram of an example sterile disposable bipolar ablation needle with an aspirating needle and a sterile cover in place in accordance with some implementations.
  • FIG. 2A is a diagram of an example sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 2B is a diagram of an example sterile disposable bipolar ablation needle showing details of the electrodes and working area in accordance with some implementations.
  • FIG. 3 is a diagram of an example stylet for use in connection with a sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 4 is a diagram of an example sterile cover for a sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 5 is a diagram showing details of the working area of an example sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 6 is a diagram showing an example electrical connection to a sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 7 is a diagram showing an example electrical connection to a sterile disposable bipolar ablation needle in accordance with some implementations.
  • FIG. 8 is a diagram showing an example electro surgery environment in accordance with some implementations.
  • FIG. 9 is a flowchart of an example electro surgery method in accordance with some implementations .
  • Some implementations can include a bipolar radio frequency (RF) ablation,
  • electrosurgery, or electrocautery instrument e.g., a sterile disposable bipolar ablation needle
  • a sterile disposable bipolar ablation needle designed for percutaneous ablation of tissue in a human tissue structure, such as a thyroid nodule or renal mass.
  • the sterile disposable bipolar ablation needle may be inserted through a patient’s skin to a thyroid nodule or to renal cell carcinoma under guidance of an imaging system (e.g., ultrasound).
  • an imaging system e.g., ultrasound
  • Activation of the sterile disposable bipolar ablation needle serves to quickly destroy malignant tissue (e.g., neoplasm).
  • the out conductor of the sterile disposable bipolar ablation needle uncoated and a sharpening angle of 12° can be used. According to tests conducted by the inventor of the disclosed subject matter, these features make puncturing the skin and thyroid capsule of a patient much easier for a physician. As a result, the entire procedure becomes less painful and more tolerable for a patient.
  • FIG. 1 is a diagram of an example sterile disposable bipolar ablation needle system 100 having a sterile disposable bipolar ablation needle 102, a protective cover 104 to help protect and maintain sterility of the sterile disposable bipolar ablation needle, and a stylet 106.
  • FIG. 2A is a diagram of an example sterile disposable bipolar ablation needle 102, which includes a stylet socket 202, a grip 204, and a needle 206.
  • the stylet socket 202 is a cannula for connecting with a syringe for aspiration.
  • FIG. 2B is a diagram of an example sterile disposable bipolar ablation needle 102 showing details of the electrodes and working zone.
  • the sterile disposable bipolar ablation needle 102 includes a working zone 208 that has a portion of the outer electrode 210, an exposed portion of the inner electrode 212, and an exposed portion of the internal dielectric layer 214.
  • the portion of the outer electrode 210 can have a length of about lmm-15mm
  • the exposed portion of the inner electrode 212 can have a length of about 1mm- 15mm
  • the exposed portion of the dielectric 214 can have a length of about 1mm- 2mm.
  • an outer maximum diameter of the working area of the tool should be no more than 0.9 mm.
  • the length of the working area can be from about from 3 to 32 mm.
  • Maximum immersion depth i.e., length from the PCB adapter to the end of the needle) may be no more than 60 mm.
  • Section 216 can have a length that depends on the length of the working zone and can be about 46mm to 75mm.
  • Section 218 can have a length of about 2mm.
  • Section 220 can have a length of about 10mm.
  • the sterile disposable bipolar ablation needle 102 includes an inner electrode 222 that is a needle shaped electrode with a hollow interior and an inner diameter of about 0.5mm.
  • the sterile disposable bipolar ablation needle 102 also includes an outer electrode 224 having an inner diameter of about 0.9mm.
  • the sterile disposable bipolar ablation needle 102 also includes an internal dielectric layer 226 disposed between the inner electrode 222 and the outer electrode 224.
  • the dielectric layer 226 can provide an insulation resistance between the external and internal needle (electrodes), R, of at least about 3 kQ.
  • FIG. 3 is a diagram of an example stylet 106 having a stylet connector 302 and a stylet needle portion 306.
  • the stylet 106 can be used during a procedure to ease aspiration of fluid before the ablation procedure.
  • the stylet 106 can be inserted loosely into the hole of the inner needle 102 and has a holder for easy removal from the hole of the needle.
  • the stylet 106 is optional; the sterile disposable bipolar ablation needle 102 can be used by itself.
  • the stylet 106 is removed before the ablation procedure to aspirate the fluid component of the node. Ablation procedure can be performed also with the presence of the stylet 106.
  • FIG. 4 is a diagram of an example sterile cover 104 having a first cover portion 402 and a second cover portion 404, where the first cover portion 402 has a diameter greater than a diameter of the second cover portion 404.
  • FIG. 5 is a diagram showing details of the working zone 208 of an example sterile disposable bipolar ablation needle 206 in accordance with some implementations.
  • FIG. 5 shows an outer needle shaped electrode 502 (210 in FIG. 2B), a needle shaped internal dielectric layer 504 (214 in FIG. 2B), and an inner electrode 506 (212 in FIG. 2B).
  • the inner electrode 506 includes a hollow interior space 508 that is constructed to receive a stylet (e.g., 106).
  • the working zone of the sterile disposable bipolar ablation needle 206 includes a first sharpening angle 510 of the inner electrode.
  • the first sharpening angle 510 can be about 12 0 ⁇ 2 0 - for an embodiment with a long cut or 18 0 ⁇ 2 0 for an embodiment with a short cut.
  • the working zone of the sterile disposable bipolar ablation needle 206 includes a second sharpening angle 512 of the inner electrode.
  • the second sharpening angle 512 can be in the range of about 20-90° and can include a chamfer.
  • the maximum diameter of the working area of the tool should be no more than 0.9 mm.
  • the length of the working area can be from about 3 mm to 32 mm.
  • maximum immersion depth (e.g., length from the PCB adapter to the end of the needle) may be no more than about 60 mm.
  • FIG. 6 is a diagram of an example sterile disposable bipolar ablation needle 206.
  • the sterile disposable bipolar ablation needle 206 can include an inner electrode 222, an outer electrode 224, and an internal dielectric (or insulating) layer 226.
  • the sterile disposable bipolar ablation needle 206 has two exposed contact areas: 1) a first exposed contact area near a proximate end of the sterile disposable bipolar ablation needle 206 where a connector 602 connects to the sterile disposable bipolar ablation needle 206 and to an adapter cable connected to an electrosurgical generator.
  • the connector 602 includes an outer electrode contact 604 and an inner electrode contact 606; and 2) a second exposed contact area on a distal end (e.g., the working zone) that forms the active portion of the instrument where RF energy is emitted into tissue.
  • the sterile disposable bipolar ablation needle 206 can also include sterile cover 104 to maintain the sterility the sterile disposable bipolar ablation needle 206 while the connector 602 is being attached.
  • the cover 104 can be removed just prior to a surgical procedure.
  • the inner electrodes and outer electrodes can be stainless steel (e.g., similar to that material and/or shape of spinal tap needles) of the appropriate gauges sized for a given ablation procedure.
  • the insulating material can be a medically safe material, such as Mastersilver made by Renfert (a German company), Mastersilver is a lacquer used in prosthetic dentistry, or other suitable medically safe insulating material.
  • FIG. 7 shows an implementation in which the connector 702 is integrated with the sterile disposable bipolar ablation needle 206 and a connector 704 can be coupled to the connector 702 on the sterile disposable bipolar ablation needle 206.
  • This could increase the cost of the sterile disposable bipolar ablation needle 206, but may have advantages such as having an instrument manufactured with the connector 702 attached at the factory.
  • FIG. 8 is a diagrammatic illustration of an example electro surgery system 800 utilizing a sterile disposable bipolar ablation needle 810 in accordance with some implementations.
  • the system 800 includes an electric power supply 802 (e.g., a 220V, 50Hz supply), foot pedal switch control 804, an electrosurgical generator 806, an adapter cable 808, a sterile disposable bipolar ablation needle 810, which can produce energy 812 that impinges on biological material 814 (e.g., tissue).
  • an electric power supply 802 e.g., a 220V, 50Hz supply
  • foot pedal switch control 804 e.g., an electrosurgical generator 806, an adapter cable 808, a sterile disposable bipolar ablation needle 810, which can produce energy 812 that impinges on biological material 814 (e.g., tissue).
  • biological material 814 e.g., tissue
  • Some implementations can include a sterile disposable bipolar ablation needle 206 comprising an outer electrode and an inner electrode.
  • the sterile disposable bipolar ablation needle 206 can also include an insulating layer disposed between the inner electrode and the outer electrode.
  • the sterile disposable bipolar ablation needle 206 can further include a first exposed region of the instrument disposed near a proximate end of the sterile disposable bipolar ablation needle 206, the first exposed region including a first exposed portion of the inner electrode and a first exposed portion of the outer electrode, the first exposed region constructed to provide contact to a connector, and a second exposed region of the sterile disposable bipolar ablation needle 206 disposed near a distal end of the sterile disposable bipolar ablation needle 206, the second exposed region forming the active region of the sterile disposable bipolar ablation needle 206 and including a second exposed portion of the inner electrode and a second exposed portion of the outer electrode.
  • FIG. 9 is a flow diagram illustrating an example method 900 of operation of the sterile disposable bipolar ablation needle of FIGS. 1-7 in accordance with some implementations.
  • the process begins at 902, where a sterile disposable bipolar ablation needle or instrument (e.g., 810) is obtained. If the sterile disposable bipolar ablation needle is not already connected to an electrosurgical generator, then sterile disposable bipolar ablation needle can be attached to an electrosurgical generator via an adapter cable. The process continues to 904.
  • the sterile disposable bipolar ablation needle is inserted into a patient. The process continues to 906.
  • the insertion of the sterile disposable bipolar ablation needle is optionally guided to a region of interest using an imaging technique such as ultrasound or the like. The process continues to 908.
  • the application of RF power is stopped or terminated.
  • the termination of RF power can occur after a predetermined amount of time or after an amount of time based on the condition of the tissue.
  • the process continues to 912, where the sterile disposable bipolar ablation needle is removed from the patient.
  • the sterile disposable bipolar ablation needle can optionally be discarded.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une aiguille bipolaire d'ablation jetable stérile (l'aiguille) comprenant une électrode externe apparente et une électrode interne. L'aiguille peut également comprendre une couche isolante disposée entre l'électrode interne et l'électrode externe. L'aiguille peut en outre comprendre une première zone apparente de l'aiguille disposée près de l'extrémité proximale de l'aiguille, la première zone apparente comprenant une première partie apparente de l'aiguille interne et une première partie apparente de l'aiguille externe, la première zone apparente étant conçue pour assurer le contact avec un connecteur, et une seconde zone apparente de l'aiguille étant disposée près de l'extrémité distale de l'aiguille. Un stylet peut être présent pour être utilisé avec l'aiguille et une protection stérile peut être présente pour recouvrir l'aiguille et préserver la stérilité de l'aiguille et du stylet.
PCT/US2019/015319 2019-01-27 2019-01-27 Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation WO2020153976A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2019/015319 WO2020153976A1 (fr) 2019-01-27 2019-01-27 Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2019/015319 WO2020153976A1 (fr) 2019-01-27 2019-01-27 Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation

Publications (1)

Publication Number Publication Date
WO2020153976A1 true WO2020153976A1 (fr) 2020-07-30

Family

ID=71736888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/015319 WO2020153976A1 (fr) 2019-01-27 2019-01-27 Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation

Country Status (1)

Country Link
WO (1) WO2020153976A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038932A1 (fr) * 1997-03-07 1998-09-11 Advanced Closure Systems, Inc. Ensemble electrodes pour resectoscope avec coupage et coagulation simultanes
US6402742B1 (en) * 1997-04-11 2002-06-11 United States Surgical Corporation Controller for thermal treatment of tissue
US20070016185A1 (en) * 2005-04-29 2007-01-18 Tullis Philip J Medical Bipolar Electrode Assembly With A Cannula Having A Bipolar Active Tip And A Separate Supply Electrode And Medical Monopolar Electrode Assembly With A Cannula Having A Monopolar Active Tip And A Separate Temperature-Transducer Post
EP2349043A2 (fr) * 2008-08-25 2011-08-03 Ethicon Endo-Surgery, Inc. Dispositifs d ablation électriques
US20130289560A1 (en) * 2012-04-30 2013-10-31 Vivant Medical, Inc. Limited Reuse Ablation Needles and Ablation Devices for Use Therewith
US20160045255A1 (en) * 2012-06-26 2016-02-18 Covidien Lp Ablation device having an expandable chamber for anchoring the ablation device to tissue

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038932A1 (fr) * 1997-03-07 1998-09-11 Advanced Closure Systems, Inc. Ensemble electrodes pour resectoscope avec coupage et coagulation simultanes
US6402742B1 (en) * 1997-04-11 2002-06-11 United States Surgical Corporation Controller for thermal treatment of tissue
US20070016185A1 (en) * 2005-04-29 2007-01-18 Tullis Philip J Medical Bipolar Electrode Assembly With A Cannula Having A Bipolar Active Tip And A Separate Supply Electrode And Medical Monopolar Electrode Assembly With A Cannula Having A Monopolar Active Tip And A Separate Temperature-Transducer Post
EP2349043A2 (fr) * 2008-08-25 2011-08-03 Ethicon Endo-Surgery, Inc. Dispositifs d ablation électriques
US20130289560A1 (en) * 2012-04-30 2013-10-31 Vivant Medical, Inc. Limited Reuse Ablation Needles and Ablation Devices for Use Therewith
US20160045255A1 (en) * 2012-06-26 2016-02-18 Covidien Lp Ablation device having an expandable chamber for anchoring the ablation device to tissue

Similar Documents

Publication Publication Date Title
RU2499574C2 (ru) Биполярный радиочастотный абляционный инструмент
EP1852080B1 (fr) Transection de tissus RF souple et dispositif de résection
US6432104B1 (en) Electro-cautery catherer
US9848932B2 (en) Cool-tip thermocouple including two-piece hub
US8211104B2 (en) Co-access bipolar ablation probe
US8753336B2 (en) Method for indirectly ablating tissue using implanted electrode devices
US20120150178A1 (en) Electro-cautery catheter
AU2001222604A1 (en) Electro-cautery catheter
IL148989A (en) Cutting tissue with electrosurgically deployed electrodes
RU2768604C2 (ru) Электрохирургическое устройство для подачи радиочастотной энергии и/или микроволновой энергии в биологическую ткань
US20200000516A1 (en) Sterile disposable bipolar ablation needle, associated system, and method of use
EP4085859A1 (fr) Aiguille d'ablation intégrée et système d'ablation
EP3965678B1 (fr) Dispositif médical
US10531916B2 (en) Microwave-irradiating instrument
US20090076412A1 (en) Apparatus and Methods for Obtaining a Sample of Tissue
US6293944B1 (en) Combined syringe and electrosurgical electrode for sclerotherapy
US20170360501A1 (en) Disposable bipolar coaxial radio frequency ablation needle, system and method
RU2740699C2 (ru) Стерильная одноразовая игла для биполярной абляции, связанная система и способ применения
WO2020153976A1 (fr) Aiguille bipolaire d'ablation jetable stérile, système associé et procédé d'utilisation
US20190336206A1 (en) Electrode Tips For Cardiac Ablation
JPH03977Y2 (fr)
US20220265163A1 (en) Bioimpedance system for enhanced positional guidance
CN118453096A (zh) 一种能取活检的射频消融电极及操作方法
WO2024137986A1 (fr) Bistouri électrique bipolaire
JPH0119934Y2 (fr)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19911039

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19911039

Country of ref document: EP

Kind code of ref document: A1