Illuminated and isolated electrosurgical apparatus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/14
F21V-029/70
F21V-008/00
A61B-090/35
F21V-029/503
A61B-090/30
F21Y-115/10
F21W-131/20
A61B-018/00
A61B-090/00
출원번호
US-0887503
(2018-02-02)
등록번호
US-10194975
(2019-02-05)
발명자
/ 주소
Hubelbank, David
출원인 / 주소
MEDTRONIC ADVANCED ENERGY, LLC
대리인 / 주소
Patterson Thuente Pedersen, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
196
초록▼
Unintended current flow or plasma discharge has been observed in known illuminated electrosurgical devices having a metallic tubular heat sink surrounding a conductive electrode and an illumination element, and having a distal outer edge that abuts against the light emitting element. An insulating,
Unintended current flow or plasma discharge has been observed in known illuminated electrosurgical devices having a metallic tubular heat sink surrounding a conductive electrode and an illumination element, and having a distal outer edge that abuts against the light emitting element. An insulating, shielding or other isolating element that prevents or discourages unintended plasma formation between the distal outer edge and nearby patient tissue can reduce the potential for tissue damage to a patient or injury to a surgeon.
대표청구항▼
1. An electrosurgical device comprising: a) a handle;b) a conductive electrode supported by the handle and having a tip for cutting or cauterizing tissue;c) an illumination element coupled to the handle, the illumination element comprising a light source, an optical waveguide, and a light emitting e
1. An electrosurgical device comprising: a) a handle;b) a conductive electrode supported by the handle and having a tip for cutting or cauterizing tissue;c) an illumination element coupled to the handle, the illumination element comprising a light source, an optical waveguide, and a light emitting element illuminating the electrode tip;d) a metallic tubular heat sink surrounding at least part of the conductive electrode and illumination element and having a distal outer edge that abuts against the light emitting element; ande) an insulating, shielding or other isolating element that prevents or discourages unintended current flow or plasma formation between the distal outer edge and nearby patient tissue. 2. An electrosurgical device comprising: a) a handle;b) a conductive electrode supported by the handle and having a tip for tissue cutting or tissue cauterizing;c) an illumination element having a light source, an optical waveguide, and a light emitting element illuminating the electrode tip;d) a metallic tubular heat sink that can be slidably extended from the handle, the heat sink: surrounding at least part of the conductive electrode and at least part of the illumination element,having a length,having a distal outer edge that abuts the light emitting element, andhaving a breakdown voltage between the distal outer edge and nearby patient tissue when the device is used to dispense radiofrequency energy through the electrode tip; ande) a plastic insulating sleeve or plastic insulating collar that is placed over at least a portion of the illumination element and over the distal outer edge of the heat sink, and that increases the heat sink breakdown voltage. 3. The device of claim 2, wherein the plastic insulating sleeve or plastic insulating collar surrounds the distal outer edge. 4. The device of claim 2, wherein the plastic insulating sleeve or plastic insulating collar is a cured or hardened bead of insulating material. 5. The device of claim 2, wherein there is a bead of insulating material between the light emitting element and the distal outer edge that abuts the light emitting element. 6. The device of claim 2, wherein the heat sink has an inner sidewall and an outer sidewall, and the plastic insulating sleeve or collar covers at least a portion of the outer sidewall. 7. The device of claim 6, further comprising an insulating element that covers at least a portion of the inner sidewall and increases the heat sink breakdown voltage. 8. The device of claim 2, wherein the plastic insulating sleeve or plastic insulating collar is a plastic insulating collar. 9. The device of claim 8, wherein the collar is tubular and has a thickness of at least 0.1 mm and a width of at least 2 mm. 10. The device of claim 8, wherein the collar is opaque, the light emitting element has an outer edge, and light is not emitted from the outer edge of the light emitting element during use of the device. 11. The device of claim 8, wherein the collar is a material selected from the group consisting of acrylics, acrylates, epoxies, fluorinated ethylene propylene (FEP) elastomers, polycarbonates, polyimides, polytetrafluoroethylene (PTFE) and polyurethanes. 12. The device of claim 8, wherein the collar is acrylonitrile-butadiene-styrene (ABS) copolymer. 13. The device of claim 2, wherein the plastic insulating sleeve or plastic insulating collar is a plastic insulating sleeve. 14. The device of claim 13, wherein the plastic insulating sleeve is a tubular hardened layer of organic material extending along at least the distal 20 mm of the heat sink. 15. The device of claim 14, wherein the plastic insulating sleeve extends along the entire length of the heat sink. 16. The device of claim 14, wherein the sleeve is heat-shrink tubing. 17. The device of claim 14, wherein the sleeve is polyolefin. 18. The device of claim 14, wherein the sleeve is polyvinyl chloride. 19. The device of claim 2, wherein the device includes: a tubular plastic insulating sleeve extending along at least the distal 20 mm of the heat sink, anda tubular plastic insulating collar having a thickness of at least 0.1 mm and a width of at least 2 mm. 20. The device of claim 2, wherein the electrode includes a conductive leg portion that resides in a slot in the optical waveguide and extends towards the handle, and the conductive leg portion is connected to a conductive cable that passes through the handle and supplies radiofrequency energy to the electrode. 21. The device of claim 20, wherein the device further comprises a layer of plastic cladding that surrounds the optical waveguide and increases the heat sink breakdown voltage. 22. The device of claim 21, wherein the cladding has a thickness of at least 0.1 mm. 23. The device of claim 20, wherein at least some of the conductive leg portion is coated with a layer of an insulating material that increases the heat sink breakdown voltage. 24. The device of claim 23, wherein the insulating material is heat-shrink plastic tubing. 25. The device of claim 2, wherein the heat sink breakdown voltage is increased such that when performing simulated electrosurgery using chicken tissue and an operating power of 10 watts and while laying the heat sink atop such chicken tissue, the heat sink does not char the chicken tissue. 26. The device of claim 2, wherein the plastic insulating sleeve or plastic insulating collar increases the heat sink breakdown voltage, measured without the handle and tip, to at least 2 KV RMS @ 20 seconds. 27. An electrosurgical device comprising: a) a handle;b) a conductive electrode supported by the handle and having a tip for tissue cutting or tissue cauterizing;c) an illumination element having a light source, an optical waveguide, and a light emitting element illuminating the electrode tip;d) a metallic tubular heat sink that can be slidably extended from the handle, the heat sink: surrounding at least part of the conductive electrode and at least part of the illumination element,having a length,having a distal outer edge that abuts the light emitting element, andhaving a breakdown voltage between the distal outer edge and nearby patient tissue when the device is used to dispense radiofrequency energy through the electrode tip;e) a tubular plastic insulating sleeve placed over at least a portion of the illumination element and over the distal outer edge of the heat sink, wherein the plastic insulating sleeve extends along at least the distal 20 mm of the heat sink length and increases the heat sink breakdown voltage;f) a tubular plastic insulating collar placed over at least a portion of the illumination element and over the distal outer edge of the heat sink, wherein the plastic insulating collar has a thickness of at least 0.1 mm, a width of at least 2 mm and increases the heat sink breakdown voltage;g) a layer of plastic cladding that surrounds the optical waveguide, has a thickness of at least 0.1 mm and increases the heat sink breakdown voltage;wherein the electrode includes a conductive leg portion that resides in a slot in the optical waveguide and extends towards the handle, the conductive leg portion is connected to a conductive cable that passes through the handle and supplies radiofrequency energy to the electrode, and at least some of the conductive leg portion is coated with a layer of heat-shrink plastic tubing that increases the heat sink breakdown voltage. 28. The device of claim 27, wherein the heat sink breakdown voltage is increased such that when performing simulated electrosurgery using chicken tissue and an operating power of 10 watts and while laying the heat sink atop such chicken tissue, the heat sink does not char the chicken tissue. 29. The device of claim 27, wherein in combination the tubular plastic insulating sleeve, tubular plastic insulating collar, layer of plastic cladding and layer of heat-shrink plastic tubing increase the heat sink breakdown voltage, measured without the handle and tip, to at least 2 KV RMS @ 20 seconds. 30. An electrosurgical device comprising an electrical device designed for handheld use by a surgeon to dispense radiofrequency energy from the electromagnetic spectrum having a frequency between about 3 kilohertz (3 kHz) and about 300 gigahertz (300 GHz) through the tip of an electrode into target surgical tissue, in order to cut, coagulate or cauterize such surgical tissue during a surgical procedure, the electrosurgical device comprising: a) a handle that can be held by the surgeon;b) an electrically conductive electrode supported by the handle and having a tip for cutting, coagulating or cauterizing such surgical tissue during such surgical procedure, the electrically conductive electrode being a material that readily permits the flow of electrical current through such conductive electrode material;c) an illumination element having: a light source including a light emitting diode,a parabolic light collector and optical waveguide that capture light emitted from the light emitting diode and conduct such light towards the electrically conductive electrode tip, anda light emitting element including a front face having lenslets that illuminate the electrode tip and direct such light onto such target surgical tissue to be cut, coagulated or cauterized during such surgical procedure;d) a metallic tubular heat sink that can be slidably extended from the handle, the heat sink: surrounding at least part of the conductive electrode and at least part of the illumination element,having a length,having a distal outer edge that abuts the light emitting element, andhaving a breakdown voltage between the distal outer edge and nearby patient tissue when the device is used to dispense radiofrequency energy through the electrode tip;e) a collet or other locking mechanism on the handle that permits the surgeon to vary the length of the metallic tubular heat sink and electrosurgical device as may be needed for particular surgical procedures;f) a tubular plastic insulating sleeve placed over at least a portion of the illumination element and over the distal outer edge of the metallic tubular heat sink, the plastic insulating sleeve being a hardened layer of organic material that extends along at least the distal 20 mm of the metallic tubular heat sink length and increases the heat sink breakdown voltage while permitting little, if any, flow of electrical current through such hardened layer of organic material while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure;g) a tubular plastic insulating collar placed over at least a portion of the illumination element and over the distal outer edge of the metallic tubular heat sink, the plastic insulating collar having a thickness of at least 0.1 mm, a width of at least 2 mm and increasing the heat sink breakdown voltage while permitting little, if any, flow of electrical current through such plastic insulating collar while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure; wherein: the electrically conductive electrode includes a conductive leg portion that readily permits the flow of electrical current through such conductive leg portion while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure;the conductive leg portion resides in a slot in the optical waveguide;the electrically conductive electrode is connected to a conductive cable that readily permits the flow of electrical current through such conductive cable while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure;the conductive cable passes through the handle and supplies radiofrequency energy to the electrically conductive electrode while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure;some or all of the conductive leg portion of the electrically conductive electrode is coated with a layer of an insulating material in the form of plastic heat-shrink tubing that increases the heat sink breakdown voltage while permitting little, if any, flow of electrical current through such layer of insulating material in the form of plastic heat-shrink tubing while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure; anda layer of plastic cladding surrounds the optical waveguide, the layer of plastic cladding having a thickness of at least 0.1 mm and increasing the heat sink breakdown voltage while permitting little, if any, flow of electrical current through such layer of plastic cladding while cutting, coagulating or cauterizing such surgical tissue during such surgical procedure.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (196)
Edwards Stuart D. (1681 Austin Ave. Los Altos CA 94024) Sharkey Hugh R. (Redwood Shores CA), Ablation apparatus for cardiac chambers.
Stewart Mark T. ; Flickinger William J. ; Francischelli David E. ; Mehra Rahul ; Min Xiaoyi, Ablation catheter and method for isolating a pulmonary vein.
Passafaro James D. (Santa Ana CA) Nita Henry (Lake Forest CA) Siegel Robert J. (Venice CA) Gesswein Douglas H. (Mission Viejo CA), Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound t.
Michael F. Hoey ; Mark A. Christopherson ; Steven M. Goetz, Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue.
Parins David J. (White Bear Lake MN) Szczech Gerald S. (Minnetonka MN) Nicoloff Demitre M. (Edina MN) Berhow Steven W. (Brooklyn Center MN), Bipolar scalpel for harvesting internal mammary artery.
Stern Roger A. (Cupertino CA) Soderstrom Richard M. (Seattle WA) Sullivan Vincent N. (San Jose CA) Marion Robert L. (San Jose CA), Coagulating forceps.
Swanson David K. (Mountain View CA) Fleischman Sidney D. (Sunnyvale ; CA) Kordis Thomas F. (Sunnyvale ; CA) McGee David L. (Palo Alto CA), Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditi.
Branham Barry H. (Ballwin MO) Cox James L. (Ladue MO) Boineau John P. (Ladue MO) Schuessler Richard B. (Ballwin MO), Computerized three-dimensional cardiac mapping with interactive visual displays.
Linner John G. (Woodlands TX) Livesey Stephen A. (Woodlands TX) Piunno Carmen (Woodlands TX) Zaltsberg Mark (Woodlands TX) Gibson Frank (Spring TX), Cryo-slammer.
Friedman Peter L. (Rowley MA) Wang Paul (Brookline MA) Cravalho Ernest G. (Wellesley Hills MA), Cryoablation catheter and method of performing cryoablation.
Baust John G. (Candor NY) Chang ZhaoHua (Binghamton NY) Finkelstein J. J. (Bethesda MD), Cryosurgical instrument with vent holes and method using same.
Rubinsky Boris (Albany CA) Onik Gary (Wexford PA) Finkelstein J. J. (Washington DC) Neu Dan (Pittsburgh PA) Jones Steve (Monroeville PA), Cryosurgical system for destroying tumors by freezing.
Pomeranz Mark L. ; Chapman Troy J. ; Sherman Darren R. ; Tedder Scott ; Anderson Steven C., Deflectable loop design for a linear lesion ablation apparatus.
Nakao Naomi L. (303 E. 57th St. New York NY 10022) Wilk Peter J. (185 W. End Ave. New York NY 10023), Device utilizable with endoscope and related method.
Campbell Peter (35 Tulip La. Milpitas CA) Reese Jeffrey H. (35 Tulip La. Palo Alto CA 94301) Stewart Daren L. (Redwood City CA), Direct visualization surgical probe.
Grooters Ronald K. (3300 Fuller Rd. West Des Moines IA 50265) Coil ; Jr. James A. (920 - 51st St. West Des Moines IA 50265), Disposable surgical scope guide.
Abele John E. (Concord MA) Rowe Steven (Belmont MA) Rowland Christopher A. (Marlboro MA) Vergano Michael G. (Cumberland RI), Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue.
Shvetsov, Kyrylo; Lizauckas, III, Anthony L; Pepe, Gregory J.; Palmerton, Daniel R; Lynch, Joseph J; Palmerton, Christopher A, Electrosurgical device with vacuum port.
Pomeranz Mark L. (Los Gatos CA) Gingell Patsy A. (Pascoag RI) Imran Mir A. (Palo Alto CA), Endocardial mapping apparatus with rotatable arm and method.
Brucker Gregory G. (Minneapolis MN) Saul Jerome Philip (Newton MA) Savage Steven D. (Brooklyn Center MN), Fluid cooled and perfused tip for a catheter.
Greeley, Roger D.; Miller, Steven G.; Podany, Vaclav O.; Conley, Brian M.; Greenlaw, Chad M., Fluid-assisted electrosurgical devices, methods and systems.
McClurken,Michael E.; Luzzi,Robert; Oyola,Arnold E.; Charbonneau,Mark T., Fluid-assisted medical devices, fluid delivery systems and controllers for such devices, and methods.
Sanghvi Narendra T. (Indianapolis IN) Bihrle Richard (Indianapolis IN) Fry Francis J. (Port Charlotte FL), Focussed ultrasound tissue treatment method.
Negus Charles Christopher ; Linhares Stephen J. ; Rudko Robert I. ; Woodruff Eileen A., Gauging system for monitoring channel depth in percutaneous endocardial revascularization.
Swartz John F. (Tulsa OK) Ockuly John D. (Minnetonka MN) Fleischhacker John J. (Minnetonka MN) Hassett James A. (Bloomington MN), Guiding introducer for right atrium.
Josef V. Koblish ; Russell B. Thompson ; James G. Whayne ; David K. Swanson, Loop structures for positioning a diagnostic or therapeutic element on the epicardium or other organ surface.
Todd Robert J. (Salt Lake City UT) Yagge Jaime E. (Salt Lake City UT) Lowe James E. (Durham NC) Wonder Terry M. (Salt Lake City UT), Medical suction apparatus.
Broadwin Alan (Brooklyn NY) Vassallo Charles (Oxford CT) Logan Joseph N. (Trumbull CT) Hornlein Robert W. (Stamford CT), Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis.
Borst Cornelius,NLX ; Mansvelt Beck Hendricus J.,NLX ; Grundeman Paul F.,NLX ; Jansen Erik W. L.,NLX, Method and apparatus for temporarily immobilizing a local area of tissue.
Nichols Colin J. (Fremont CA) Dubrul William R. (Redwood City CA) Behl Robert S. (Palo Alto CA), Method and device for thermal ablation having improved heat transfer.
Buysse, Steven P.; Felton, Bret S.; Heard, David N.; Keppel, David; Podhajsky, Ronald J.; Shmaltz, Dale F.; Wham, Robert H.; Meagher, Edward C.; Lawes, Kate R.; Schechter, David A.; Shields, Chelsea; Tetzlaff, Philip M.; James, Jeremy S., Method and system for controlling output of RF medical generator.
Beach Kirk W. ; Brown Katherine G. ; Plett Melani I. ; Caps Michael J., Method for determining phase advancement of transducer elements in high intensity focused ultrasound.
Vaska Matthias ; Pless Benjamin ; Gallup David A. ; Ulstad ; Jr. Jack E. ; Anderson Scott C. ; Richman Roxanne L., Method of ablating tissue around the pulmonary veins.
McGee David L. (Palo Alto CA) Houser Russell A. (Livermore CA) Swanson David K. (Mountain View CA), Methods for locating and ablating accessory pathways in the heart.
McGee David L. (Palo Alto CA) Houser Russell A. (Livermore CA) Swanson David K. (Mountain View CA), Multiple electrode element for mapping and ablating heart tissue.
Cain Charles A. (Ann Arbor MI) Ebbini Emad S. (Ann Arbor MI) Strickberger S. Adam (Ann Arbor MI), Phased array ultrasound system and method for cardiac ablation.
Swartz John F. (Tulsa OK) Ockuly John (Minneapolis MN), Process for the nonsurgical mapping and treatment of atrial arrhythmia using catheters guided by shaped guiding introduc.
Swartz John F. (Tulsa OK) Ockuly John D. (Minnetonka MN), Process for the treatment of atrial arrhythima using a catheter guided by shaped giding introducers.
Moll Frederic H. (San Francisco CA) Gresl ; Jr. Charles (San Francisco CA) Chin Albert K. (Palo Alto CA) Hopper Philip K. (Laverne CA), Retraction methods using endoscopic inflatable retraction devices.
Imran Mir A. (Palo Alto CA) Pomeranz Mark L. (Los Gatos CA) Glynn Brian A. (Sunnyvale CA) Follmer Brett A. (Sunnyvale CA) Gillis Edward M. (Milpitas CA), Steerable catheter with adjustable bend location and/or radius and method.
Swanson David K. ; Fleischman Sidney D. ; Koblish Josef V. ; Thompson Russell B. ; Whayne James G. ; Jenkins Thomas R. ; Snyder Edward J., Surgical method and apparatus for positioning a diagnostic a therapeutic element within the body.
Whayne James G. ; Thompson Russell B. ; Fleischman Sidney D., Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body and coupling device for use with same.
Swanson David K. (Mountain View CA) Panescu Dorin (Sunnyvale CA) Whayne James G. (Saratoga CA), Systems and methods for examining heart tissue employing multiple electrode structures and roving electrodes.
Swanson David K. (Mountain View CA) Bourne Thomas (Mountain View CA) Fleischman Sidney D. (Menlo Park CA) Panescu Dorin (Sunnyvale CA) Whayne James G. (Saratoga CA), Systems and methods for forming large lesions in body tissue using curvilinear electrode elements.
Panescu Dorin (Sunnyvale CA) Swanson David K. (Mountain View CA) Fleischman Sidney D. (Menlo Park CA) Bourne Thomas M. (Mountain View CA), Systems and methods for sensing multiple temperature conditions during tissue ablation.
Baker James (Palo Alto CA) Edwards Stuart D. (1681 Austin Ave. Los Altos CA 94024) Jones Chris (Palo Alto CA) Lee Kee S. (Daly City CA) Sommer Phillip (Newark CA) Strul Bruno (Palo Alto CA), Thin layer ablation apparatus.
Kline-Schoder Robert ; Kynor David ; Onishi Shinzo, Ultrasound system and method of administering ultrasound including a plurality of multi-layer transducer elements.
Cline Harvey Ellis ; Watkins Ronald Dean ; Russell George Raymond ; Hynynen Kullervo Henrik, Ultrasound transducer with focused ultrasound refraction plate.
Chapelon Jean-Yves (Villeurbanne FRX) Cathignol Dominique (Genas FRX) Blanc Emmanuel (St Genis Laval FRX), Use of at least one composite piezoelectric transducer in the manufacture of an ultrasonic therapy apparatus for applyin.
Lyndall Erb ; Dany Berube ; Robert Matheny ; Robert E. Woodard ; Theodore C. Ormsby, Vacuum-assisted securing apparatus for a microwave ablation instrument.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.