Medical device for use in bodily lumens, for example an atrium
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/14
A61B-005/06
A61B-005/00
A61B-018/18
A61B-018/20
A61B-018/00
A61B-018/02
출원번호
US-0564463
(2014-12-09)
등록번호
US-9877779
(2018-01-30)
발명자
/ 주소
Gelbart, Daniel
Goertzen, Douglas Wayne
Lopes, Fernando Luis de Souza
출원인 / 주소
KARDIUM INC.
대리인 / 주소
Rossi, Kimms & McDowell LLP
인용정보
피인용 횟수 :
0인용 특허 :
240
초록▼
A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow
A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow, or some other characteristic, for example electrical permittivity or force. The device may selectively ablate portions of the non-fluid tissue based on the information or mapping. The device may detect characteristics (e.g., electrical potentials) indicative of whether ablation was successful. The device may include a plurality of transducers, intravascularly guided in an unexpanded configuration and positioned proximate the non-fluid tissue in an expanded configuration. Expansion mechanism may include helical member(s) or inflatable member(s).
대표청구항▼
1. A medical device comprising: a plurality of transducer element sets;an expandable frame comprising a proximal end and a distal end; anda plurality of flexible circuit strips, an elongated portion of each flexible circuit strip extending between the proximal and the distal ends of the expandable f
1. A medical device comprising: a plurality of transducer element sets;an expandable frame comprising a proximal end and a distal end; anda plurality of flexible circuit strips, an elongated portion of each flexible circuit strip extending between the proximal and the distal ends of the expandable frame, each flexible circuit strip including a respective length of the respective elongated portion of the flexible circuit strip between the proximal and the distal ends of the expandable frame, and each flexible circuit strip comprising at least a first printed circuit board substrate and a set of one or more electrically conductive traces patterned on at least a portion of the first printed circuit board substrate and electrically coupled to a respective one of the transducer element sets,wherein a portion of the medical device is selectively movable between an unexpanded configuration in which the portion of the medical device is sized to be delivered percutaneously to a bodily cavity with the distal end of the expandable frame positioned to be introduced into the bodily cavity prior to the proximal end of the expandable frame, and an expanded configuration in which the respective elongated portions of the plurality of flexible circuit strips are circumferentially spaced apart from one another about the expandable frame, andwherein the plurality of transducer element sets comprises a first transducer element set, the first transducer element set comprising a plurality of transducer elements arranged along the elongated portion of a first one of the plurality of flexible circuit strips between the proximal and the distal ends of the expandable frame, each transducer element of the plurality of transducer elements comprising a tissue contactable portion, the tissue contactable portion of each of at least a first one of the plurality of transducer elements including a dimension transverse to the respective length of the elongated portion of the first one of the plurality of flexible circuit strips that is different from a corresponding dimension of the tissue contactable portion of another of the plurality of transducer elements. 2. The medical device of claim 1, wherein the plurality of transducer elements of the first transducer element set are arranged along a surface of the elongated portion of the first one of the plurality of flexible circuit strips between the proximal and the distal ends of the expandable frame, and wherein the dimension of the tissue contactable portion of the first one of the plurality of transducer elements that is transverse to the respective length of the elongated portion of the first one of the plurality of flexible circuit strips is with at least a portion of the surface of the elongated portion of the first one of the plurality of flexible circuit strips, at least in a state in which the portion of the medical device is in the expanded configuration. 3. The medical device of claim 1, wherein the plurality of transducer elements of the first transducer element set are arranged along a surface of the first printed circuit board substrate of the first one of the plurality of flexible circuit strips between the proximal and the distal ends of the expandable frame, and wherein the dimension of the tissue contactable portion of the first one of the plurality of transducer elements that is transverse to the respective length of the elongated portion of the first one of the plurality of flexible circuit strips is with at least a portion of the surface of the first printed circuit board substrate of the first one of the plurality of flexible circuit strips, at least in a state in which the portion of the medical device is in the expanded configuration. 4. The medical device of claim 1, wherein each of the plurality of transducer elements of the first transducer element set is provided by an electrically conductive layer of the first one of the plurality of flexible circuit strips. 5. The medical device of claim 1, wherein the first one of the plurality of transducer elements is a first electrode and the another of the plurality of transducer elements is a second electrode, each of the first and the second electrodes configured to transmit tissue ablation energy. 6. The medical device of claim 5, wherein each of the first electrode and the second electrode is provided by an electrically conductive layer of the first one of the plurality of flexible circuit strips. 7. The medical device of claim 1, wherein the respective elongated portion of each of the plurality of flexible circuit strips extends along a curved path as the respective elongated portion is traversed between the proximal and the distal ends of the expandable frame when the portion of the medical device is in the expanded configuration. 8. The medical device of claim 7, wherein a circumferential spacing between the respective elongated portions of two of the plurality of flexible circuit strips varies as the respective length of the respective elongated portion of at least one of the two of the plurality of flexible circuit strips is traversed between the proximal and the distal ends of the expandable frame when the portion of the medical device is in the expanded configuration. 9. The medical device of claim 8, wherein the first transducer element set is positioned between the two of the plurality of flexible circuit strips when the portion of the medical device is in the expanded configuration. 10. The medical device of claim 8, wherein the circumferential spacing between the respective elongated portions of the two of the plurality of flexible circuit strips is greater at a location spaced relatively farther away from the distal end of the expandable frame than at a location positioned relatively closer to the distal end of the expandable frame when the portion of the medical device is in the expanded configuration. 11. The medical device of claim 10, wherein the circumferential spacing between the respective elongated portions of the two of the plurality of flexible circuit strips is greater at a location spaced relatively farther away from the proximal end of the expandable frame than at a location positioned relatively closer to the proximal end of the expandable frame when the portion of the medical device is in the expanded configuration. 12. The medical device of claim 11, wherein, when the portion of the medical device is in the expanded configuration, the dimension of the tissue contactable portion of the first one of the plurality of transducer elements is greater than (a) the dimension of the tissue contactable portion of a second one of the plurality of transducer elements positioned closer to the distal end of the expandable frame than any other of the plurality of transducer elements, and (b) the dimension of the tissue contactable portion of a third one of the plurality of transducer elements positioned proximate the location positioned relatively closer to the proximal end of the expandable frame. 13. The medical device of claim 1, wherein, when the portion of the medical device is in the expanded configuration, the dimension of the tissue contactable portion of the first one of the plurality of transducer elements is greater than (a) the dimension of the tissue contactable portion of a second one of the plurality of transducer elements, and (b) the dimension of the tissue contactable portion of a third one of the plurality of transducer elements, the first one of the plurality of transducer elements positioned along the respective length of the elongated portion of the first one of the plurality of flexible circuit strips between the second one of the plurality of transducer elements and the third one of the plurality of transducer elements. 14. The medical device of claim 1, wherein the respective dimensions of the tissue contactable portions of at least three adjacent ones of the plurality of transducer elements monotonically increase and then monotonically decrease as the respective length of the elongated portion of the first one of the plurality of flexible circuit strips is traversed in a direction toward the distal end of the expandable frame. 15. The medical device of claim 1, wherein at least one flexible circuit strip of the plurality of flexible circuit strips crosses another flexible circuit strip of the plurality of flexible circuit strips at least when the portion of the medical device is in the expanded configuration, the at least one flexible circuit strip of the plurality of flexible circuit strips sliding relatively with respect to the another flexible circuit strip of the plurality of flexible circuit strips to change an orientation therebetween when the portion of the medical device is moved into the expanded configuration. 16. The medical device of claim 1, wherein two or more flexible circuit strips of the plurality of flexible circuit strips cross each other when the portion of the medical device is in the expanded configuration. 17. The medical device of claim 16, wherein the two or more flexible circuit strips include one of the plurality of flexible circuit strips and another of the plurality of flexible circuit strips, each of the one and the another of the plurality of flexible circuit strips includes an outward-facing surface, at least a portion of the outward-facing surface positionable to face away from an interior of the expandable frame when the portion of the medical device is in the expanded configuration, andwherein, when the portion of the medical device is in the expanded configuration, a first portion of the outward-facing surface of the one of the plurality of flexible circuit strips and a first portion of the outward-facing surface of the another of the plurality of flexible circuit strips face a same direction, with the first portion of the outward-facing surface of the one of the plurality of flexible circuit strips crossing behind the first portion of the outward-facing surface of the another of the plurality of flexible circuit strips when the first portion of the outward-facing surface of the another of the plurality of flexible circuit strips is viewed from a direction opposite the same direction. 18. The medical device of claim 7, wherein two or more flexible circuit strips of the plurality of flexible circuit strips cross each other when the portion of the medical device is in the expanded configuration. 19. The medical device of claim 1, wherein the expandable frame comprises an inflatable member, each flexible circuit strip of the plurality of flexible circuit strips positioned on a surface of the inflatable member. 20. The medical device of claim 1, wherein each flexible circuit strip is backed by a metallic backing. 21. The medical device of claim 1, wherein the tissue contactable portion of each of at least the first one of the plurality of transducer elements includes a dimension along the respective length of the elongated portion of the first one of the plurality of flexible circuit strips that is the same as a corresponding dimension of the tissue contactable portion of the another of the plurality of transducer elements. 22. The medical device of claim 1, wherein the tissue contactable portions of at least two of the plurality of transducer elements include respectively longest dimensions along respective directions, the directions intersecting. 23. The medical device of claim 1, wherein, when the portion of the medical device is in the expanded configuration, the tissue contactable portions of at least two of the plurality of transducer elements include respectively longest dimensions along respective directions, the directions intersecting. 24. The medical device of claim 22, wherein each of the at least two of the plurality of transducer elements includes a respective length and a respective width of different magnitudes, the respective length and the respective width defining a surface of the respective transducer element arranged to face a tissue wall of the bodily cavity when the portion of the medical device is in the expanded configuration in the bodily cavity. 25. The medical device of claim 1, wherein the plurality of transducer elements include a plurality of electrodes, and the tissue contactable portions of the plurality of transducer elements are tissue contactable portions of the plurality of electrodes. 26. The medical device of claim 1, wherein the first one of the plurality of flexible circuit strips, which comprises the plurality of transducer elements, includes an electrical insulation overlay layer, and wherein the tissue contactable portions of the plurality of transducer elements include areas where the electrical insulation overlay layer is excluded.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (240)
Thomas Wetzig DE; Markus Graf DE; Steffen Sachse DE; Olaf Pohl DE, Ablating arrangement.
Nappi Bruce (15 Northgate Park Newton MA 02165) O\Brien Donald Francis (221A Ash St. Waltham MA 02154), Actuators for simulating muscle activity in robotics.
Imran Mir A. (Palo Alto CA) Pomeranz Mark L. (Los Gatos CA) Zadno-Azizi Gholam-Reza (Newark CA), Apparatus and Method for ventricular mapping and ablation.
Collins, Russell F.; Falwell, Gary S.; Bene, Eric A.; Burns, Steven J.; Collins, Denyse M.; Gibson, Charles A.; He, Ding Sheng; LeClair, Paul E.; Patterson, Donald F.; Sagon, Stephen W.; Jais, Pierre, Apparatus and methods for mapping and ablation in electrophysiology procedures.
Phan, Huy D.; Swanson, David K.; Koblish, Josef V.; Thompson, Russell B.; Jenkins, Thomas R., Apparatus for mapping and coagulating soft tissue in or around body orifices.
Drasler William J. (Minnetonka MN) Dutcher Robert G. (Maple Grove MN) Jenson Mark L. (Greenfield MN) Thielen Joseph M. (Buffalo MN) Protonotarios Emmanuil I. (Brooklyn Park MN), Asymmetric water jet atherectomy.
Sekii Shigekazu (Fuji JPX) Tsuchida Kohji (Fuji JPX) Ishitsu Yoshio (Fuji JPX), Cardiac output measurement method and system for the application of same.
Edwards Stuart D. (Los Altos CA) Jackson Jerome (Sunnyvale CA), Cardiac probe with dynamic support for maintaining constant surface contact during heart systole and diastole.
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.
Casscells S. Ward ; Willerson James T. ; Bearman Gregory H. ; Eastwood Michael L. ; Krabach Timothy N., Detecting thermal discrepancies in vessel walls.
Desai Jawahar M. (8755 Petite Creek Way Roseville CA 95661) Nyo Htay L. (682 N. 5th St. ; Apt. 3 San Jose CA 95112), Device for multi-phase radio-frequency ablation.
Wallace, Michael P.; Garabedian, Robert; Gerberding, Brent C., Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size.
Hake Lawrence W. (R.R. #2 ; Box 108 Grand Island NE 68803), Endoscope construction with means for controlling rigidity and curvature of flexible endoscope tube.
Hake Lawrence W. (R.R. #2 ; P.O. Box 108 Grand Island NE 68803), Endoscope construction with means for controlling rigidity and curvature of flexible endoscope tube.
Vidlund, Robert M.; Simmon, Marc A.; Mortier, Todd J.; Schweich, Jr., Cyril J.; Keith, Peter T.; Schroeder, Richard F.; Kalgreen, Jason, Endovascular splinting devices and methods.
McGee David ; Owens Patrick M. ; Whayne James G. ; Thompson Russell B. ; Kordis Thomas F. ; Swanson David K. ; Panescu Dorin, Expandable-collapsible mesh electrode structures.
Goldfarb, Eric A.; Raschdorf, Jr., Alfred H.; Sarabia, Jaime E.; Wen Chin Fan, Sylvia; Dell, Kent D.; Komtebedde, Jan; Powell, Ferolyn T., Fixation devices, systems and methods for engaging tissue.
Pietroski Susan M. (637 Webster St. Palo Alto CA 94301) Varner Mark S. (P.O. Box 1245 Boulder Creek CA 95006) Imran Mir A. (741 Barron Ave. Palo Alto CA 94306), Flexible strip assembly having insulating layer with conductive pads exposed through insulating layer and device utilizi.
Allred ; III Jimmie B. (Skaneateles NY) Krauter Allan I. (Syracuse NY), Force relieving, force limiting self-adjusting steering for borescope or endoscope.
Panescu Dorin ; McGee David ; Dupree Daniel A. ; Dueiri David F. ; Swanson David K ; Whayne James G ; Burnside Robert R. ; Nguyen Tuan, Graphical user interface for use with multiple electrode catheters.
Fleischman Sidney D. (Sunnyvale CA) Bourne Thomas M. (Mountain View CA) Houser Russell A. (Livermore CA), Helically wound radio-frequency emitting electrodes for creating lesions in body tissue.
Dupree, Daniel A.; Nguyen, Tuan; Panescu, Dorin; Whayne, James G.; McGee, David; Swanson, David K., Interactive systems and methods for controlling the use of diagnostic or therapeutic instruments in interior body regions.
Whayne James G. ; Panescu Dorin ; McGee David ; Dupree Daniel A. ; Swanson David K. ; Nguyen Tuan, Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure.
Peter R. Werp ; Walter M. Blume ; Francis M. Creighton, IV ; Rogers C. Ritter, Method and apparatus for magnetically controlling motion direction of a mechanically pushed catheter.
Cohn, William E.; Liddicoat, John R.; Streeter, Richard B.; Taylor, Daniel C.; Woolfson, Steven B., Method and apparatus for reducing mitral regurgitation.
Eggers Philip E. (Dublin OH) Thapliyal Hira V. (Mountain View CA), Methods and apparatus for advancing catheters through severely occluded body lumens.
Schroeder, Richard F.; Vidlund, Robert M.; Kalgreen, Jason E.; Schweich, Jr., Cyril J.; Mortler, Todd J., Methods and devices for improving mitral valve function.
Passafaro James D. ; Williams Ronald G. ; Kupiecki David J. ; Patterson Greg R. ; Mah Kathy M., Methods and systems for treating obstructions in a body lumen.
Law Wing K. ; Hennige Carl ; Fry Frank ; Sanghvi Narendra T. ; Miller Fred ; Kendrick Paul ; DeMarta Stan, Multifaceted ultrasound transducer probe system and methods for its use.
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.
DeVore Lauri ; Ellis Louis ; Hendrickson Gary L. ; Lafontaine Daniel M. ; Guo Zihong ; Kaveckis Ryan, Percutaneous myocardial revascularization basket delivery system and radiofrequency therapeutic device.
Maguire, Mark A.; O'Sullivan, Martin F.; Carcamo, Edward L.; Lesh, Michael D.; Schaer, Alan K.; Taylor, Kevin J.; Picazo, Guillermo P., Positioning system and method for orienting an ablation element within a pulmonary vein ostium.
Sartori Guido ; Savage David William ; Olmstead William Neergaard ; Robbins Winston Karl ; Dalrymple David Craig ; Ballinger Bruce Henry, Process for treatment of petroleum acids with ammonia.
Weimin Sun ; Thomas M. Castellano ; Russ E. Anderson ; Wade A. Bowe ; John A. Simpson ; Marshall L. Sherman ; Kathryn E. Lockwood, RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering.
Vidlund, Robert M.; Paulson, Thomas M.; Mortier, Todd J.; Schweich, Jr., Cyril J.; Schroeder, Richard F., Splint assembly for improving cardiac function in hearts, and method for implanting the splint assembly.
Panescu Dorin (Sunnyvale CA) Swanson David K. (Mountain View CA), System and methods for matching electrical characteristics and propagation velocities in cardiac tissue.
Kordis Thomas F. (Sunnyvale CA) Swanson David K. (Mountain View CA) Jackson Jerome (Sunnyvale CA) Spraker Terry E. (Portolla CA), Systems and methods for creating complex lesion patterns in body tissue.
Fleischman,Sidney D.; McGee,David L.; Swanson,David K., Systems and methods for electronically altering the energy emitting characteristics of an electrode array to create different lesion patterns in body tissue.
Fleischman Sidney D. ; Bourne Thomas M ; Panescu Dorin ; Swanson David K. ; Whayne James G., Systems and methods for forming elongated lesion patterns in body tissue using straight or curvilinear electrode elements.
Swanson David K. (Mountain View CA) Panescu Dorin (Sunnyvale CA), Systems and methods for positioning multiple electrode structures in electrical contact with the myocardium.
James G. Whayne ; David K. Swanson ; Dorin Panescu ; Daniel A. Dupree, Systems and methods using annotated images for controlling the use of diagnostic or therapeutic instruments in interior body regions.
Swanson David K. ; Fleischman Sidney D. ; Panescu Dorin ; Whayne James G. ; Kordis Thomas F., Systems and methods using asymmetric multiple electrode arrays.
Panescu Dorin ; Whayne James G ; Swanson David K ; McGee David ; Dueiri David F., Systems for locating and guiding operative elements within interior body regions.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.