# US 2025/0143767 A1 · Enhanced medical device for use in bodily cavities, for example an atrium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0143767 A1 - Document ID: US20250143767A1 - Status: Published application - Kind: A1 - Application number: 19/016,030 - Filed: 2025-01-10 - Published: 2025-05-08 - Earliest claimed: 2011-01-21 - Assignees: Kardium Inc. - Applicants: Kardium Inc. - Inventors: Fernando Lopes; Saar Moisa; Jorge Jaramillo; Douglas Goertzen; Peter Hawes; Ashkan Sardari; Aldo Antonio Salvestro - Web page: https://patentgrep.com/patent/US20250143767A1 ## CPC - A61B 18/00: Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body (eye surgery A61F9/007; ear surgery A61F11/00) - A61B 5/065: {Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe} - A61B 5/287: Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS] - A61B 5/6858: {with a distal basket, e.g. expandable basket} - A61B 18/1492: {having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence)} - A61M 25/0074: {Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable} - A61B 5/026: Measuring blood flow {(A61B3/1233, A61B3/1241 take precedence)} - A61B 5/0538: invasively, e.g. using a catheter - A61B 5/06: Devices, other than using radiation, for detecting or locating foreign bodies {; Determining position of diagnostic devices within or on the body of the patient} - A61B 5/6843: {Monitoring or controlling sensor contact pressure} - A61B 2018/0016: {Energy applicators arranged in a two- or three dimensional array} - A61B 2018/00267: {having a basket shaped structure} - A61B 2018/00351: {Heart} - A61B 2018/00357: {Endocardium} - A61B 2018/00577: {Ablation} - A61B 2018/00791: {Temperature} - A61B 2018/00839: {Bioelectrical parameters, e.g. ECG, EEG} - A61B 2018/00863: {Fluid flow} - A61B 2018/00875: {Resistance or impedance} - A61B 2090/065: {for measuring contact or contact pressure} - A61M 25/0082: {Catheter tip comprising a tool} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract Systems, methods, and devices allow intravascular or percutaneous mapping, orientation and/or ablation, in bodily cavities or lumens. A device includes elongate members, moveable between an unexpanded configuration and an expanded or fanned configuration. The elongate members form a stack in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducer elements carried by elongate members sense various physiological characteristics of or proximate tissue, and/or may apply energy to or proximate tissue. The elongate members are rotatable in groups or as a group in the expanded configuration. The device is retractable. ## Claims ### Claim at position 1 1-43. (canceled) ### Claim 44 A medical system comprising: a catheter sheath; a catheter shaft member; a frame comprising multiple members, each member of the multiple members comprising a proximal end coupled to the catheter shaft member, a distal end, and a respective length extending between the proximal end and the distal end; and a plurality of transducer elements, a respective set of at least one transducer element of the plurality of transducer elements forming an integral component of each member of the multiple members of the frame, each transducer element of the plurality of transducer elements selectively activatable to transmit energy sufficient to cause tissue ablation, wherein at least part of the catheter shaft member is configured to be moveable through a lumen of the catheter sheath to deliver the frame through the lumen when the frame is percutaneously delivered to an intra-cardiac cavity, wherein the frame is configured to be selectively moveable into a delivery configuration in which the frame is arranged and sized to be deliverable through the lumen of the catheter sheath, wherein the frame is configured to be selectively moveable into an expanded configuration in which the frame is expanded relative to the delivery configuration, in which each member of the multiple members of the frame is radially arranged with respect to one another about a first axis, and in which each member of the multiple members of the frame is longitudinally arranged with respect to the first axis, wherein at least some of the transducer elements of the plurality of transducer elements are activatable to perform a first cardiac tissue ablation when the frame is in the expanded configuration, wherein the frame is configured to be selectively moveable, via at least an actuator, from the expanded configuration into a changed expanded configuration in which the changed expanded configuration is expanded relative to the delivery configuration, and in which each member of the multiple members of the frame is radially arranged with respect to one another about a second axis, wherein at least some of the transducer elements of the plurality of transducer elements are activatable to perform a second cardiac tissue ablation when the frame is in the changed expanded configuration, and wherein, when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, each particular member of the multiple members of the frame and an adjacent member of the multiple members of the frame that is adjacent the particular member of the multiple members of the frame diverge and then converge between each pair of a respective set of multiple pairs of adjacent spaced apart locations as the respective length of the particular member of the multiple members of the frame is traversed between the proximal end and the distal end of the particular member of the multiple members of the frame. ### Claim 45 (depends on 44) The medical system of claim 44, wherein each member of the multiple members of the frame comprises a front surface and a back surface opposite across a thickness of the member from the front surface, the front surface of each member of the multiple members of the frame arranged to face outwardly when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, and wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame overlaps, or is overlapped by, the adjacent member of the multiple members of the frame in a front surface-toward-back surface arrangement at least at each of the spaced apart locations of at least a first pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 46 (depends on 45) The medical system of claim 45, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, a portion of the particular member of the multiple members of the frame between the adjacent spaced apart locations of the first pair of the respective set of multiple pairs of adjacent spaced apart locations is laterally separated from the adjacent member of the multiple members of the frame. ### Claim 47 (depends on 44) The medical system of claim 44, wherein each member of the multiple members of the frame comprises a front surface and a back surface opposite across a thickness of the member from the front surface, the front surface of each member of the multiple members of the frame arranged to face outwardly when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, wherein the multiple members of the frame include a first member, a second member, and a third member, and wherein, when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration: the first member of the multiple members of the frame, the second member of the multiple members of the frame, and the third member of the multiple members of the frame are adjacent members of the multiple members of the frame with the second member of the multiple members of the frame located between the first member of the multiple members of the frame and the third member of the multiple members of the frame; the second member of the multiple members of the frame is overlapped by the first member of the multiple members of the frame in a front surface-toward-back surface arrangement at least at each of the spaced apart locations of at least a first pair of the respective set of multiple pairs of adjacent spaced apart locations; and the third member of the multiple members of the frame is overlapped by the second member of the multiple members of the frame in a front surface-toward-back surface arrangement at least at each of the spaced apart locations of at least a second pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 48 (depends on 47) The medical system of claim 47, wherein, when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration: a portion of the first member of the multiple members of the frame is laterally separated from the second member of the multiple members of the frame between the adjacent spaced apart locations of the first pair of the respective set of multiple pairs of adjacent spaced apart locations; and a portion of the second member of the multiple members of the frame is laterally separated from the third member of the multiple members of the frame between the adjacent spaced apart locations of the second pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 49 (depends on 44) The medical system of claim 44, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame is physically coupled by a respective coupler to the adjacent member of the multiple members of the frame at least at each of the spaced apart locations of at least a first pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 50 (depends on 49) The medical system of claim 49, wherein the respective coupler that physically couples at least a first member of the multiple members of the frame and a second member of the multiple members of the frame comprises a pin, the second member of the multiple members of the frame adjacent the first member of the multiple members of the frame when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration. ### Claim 51 (depends on 49) The medical system of claim 49, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame overlaps, or is overlapped by, the adjacent member of the multiple members of the frame at least at each of the spaced apart locations of the first pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 52 (depends on 51) The medical system of claim 51, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, at least a second pair of the respective set of multiple pairs of adjacent spaced apart locations follows the first pair of the respective set of multiple pairs of adjacent spaced apart locations as the respective length of the particular member of the multiple members of the frame is traversed between the proximal end and the distal end of the particular member of the multiple members of the frame. ### Claim 53 (depends on 44) The medical system of claim 44, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame is physically coupled to the adjacent member of the multiple members of the frame at least at each of the spaced apart locations of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 54 (depends on 53) The medical system of claim 53, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame overlaps, or is overlapped by, the adjacent member of the multiple members of the frame at least at each of the spaced apart locations of at least a first pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 55 (depends on 54) The medical system of claim 54, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, the particular member of the multiple members of the frame is physically coupled to the adjacent member of the multiple members of the frame at least by a respective pin at each of the spaced apart locations of the first pair of the respective set of multiple pairs of adjacent spaced apart locations. ### Claim 56 (depends on 54) The medical system of claim 54, wherein, for each particular member of the multiple members of the frame, and when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, at least a second pair of the respective set of multiple pairs of adjacent spaced apart locations follows the first pair of the respective set of multiple pairs of adjacent spaced apart locations as the respective length of the particular member of the multiple members of the frame is traversed between the proximal end and the distal end of the particular member of the multiple members of the frame. ### Claim 57 (depends on 44) The medical system of claim 44, wherein, when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration, each member of multiple members of the frame includes a curved portion arranged to extend along at least a portion of a respective curved path that intersects a corresponding one of the first axis, when the frame is in the expanded configuration, and the second axis, when the frame is in the changed expanded configuration, at each of a respective at least two spaced apart locations. ### Claim 58 (depends on 44) The medical system of claim 44, comprising a tubular member, wherein the multiple members of the frame are radially arranged about the tubular member when the frame is in the expanded configuration, the changed expanded configuration, or each of the expanded configuration and the changed expanded configuration. ### Claim 59 (depends on 44) The medical system of claim 44, wherein the frame is physically coupled to a distal end portion of the catheter shaft member, and wherein a particular angular orientation of a first portion of the frame relative to the distal end portion of the catheter shaft member when the frame is in the expanded configuration is different than a particular angular orientation of the first portion of the frame relative to the distal end portion of the catheter shaft member when the frame is in the changed expanded configuration. ### Claim 60 (depends on 44) The medical system of claim 44, wherein at least a portion of the frame is configured to undergo a reduction in stored potential energy during a movement of the frame between the expanded configuration and the changed expanded configuration. ### Claim 61 (depends on 44) The medical system of claim 44, wherein each member of the multiple members of the frame includes a metal layer. ### Claim 62 (depends on 44) The medical system of claim 44, wherein each member of the multiple members of the frame includes a patterned electrically conductive layer. ### Claim 63 (depends on 44) The medical system of claim 44, wherein, at least in the changed expanded configuration, each member of the multiple members of the frame is longitudinally arranged with respect to the second axis. ### Claim 64 (depends on 44) The medical system of claim 44, wherein each member of the multiple members of the frame comprises a front surface and a back surface opposite across a thickness of the member from the front surface, each of the back surface and the front surface having a set of side edges, and wherein, for each particular member of the multiple members of the frame, a width of the front surface of the particular member is greater than the thickness of the particular member.