# US 11,432,754 B2 · Intracardiac electrocardiogram presentation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,432,754 B2 - Document ID: US11432754B2 - Status: Granted - Kind: B2 - Application number: 16/580,122 - Filed: 2019-09-24 - Published: 2021-03-25 - Granted: 2022-09-06 - Earliest claimed: 2019-09-24 - Assignees: Biosense Webster (Israel) Ltd. - Applicants: Biosense Webster (Israel) Ltd. - Inventors: Shmuel Auerbach; Stanislav Goldberg; Oded Baron - Web page: https://patentgrep.com/patent/US11432754B2 ## CPC - A61B 5/339: Displays specially adapted therefor - 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 5/6859: {with multiple distal splines} - A61B 5/6869: {Heart} - G06T 11/10: Texturing; Colouring; Generation of textures or colours (retouching, inpainting or scratch removal G06T5/77) - G16H 30/20: for handling medical images, e.g. DICOM, HL7 or PACS - G06T 2210/41: Medical - G06T 2210/62: Semi-transparency - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## Abstract In one embodiment, a medical system includes a catheter to be inserted into a chamber of a heart of a living subject, and including catheter electrodes to contact tissue at respective locations within the chamber of the heart, a display, and processing circuitry to receive signals from the catheter, and in response to the signals, sample respective voltage values of the signals at respective timing values, and render to the display respective intracardiac electrograms (IEGM) presentation strips representing electrical activity in the tissue that is sensed by the catheter electrodes at the respective locations, each of the IEGM presentation strips including a linear array of respective shapes associated with, and arranged in a temporal order of, respective ones of the timing values, fillers of the respective shapes being formatted responsively to respective ones of the sampled voltage values of a respective one of the signals sampled at respective ones of the timing values. ## Claims ### Claim 1 A medical system, comprising: a catheter configured to be inserted into a chamber of a heart of a living subject, and including catheter electrodes configured to contact tissue at respective locations within the chamber of the heart; a display; and processing circuitry configured to receive signals from the catheter, and in response to the signals: sample respective voltage values of the signals at respective timing values; and render to the display respective intracardiac electrograms (IEGM) presentation strips representing electrical activity in the tissue that is sensed by the catheter electrodes at the respective locations, each of the IEGM presentation strips including a linear array of respective shapes associated with, and arranged in a temporal order of, respective ones of the timing values, fillers of the respective shapes being formatted responsively to respective ones of the sampled voltage values of a respective one of the signals sampled at respective ones of the timing values, wherein the shapes of the IEGM presentation strips are formatted to show additional attributes of the signals, including rate of change of the respective signal and a fractionation of the respective signal. ### Claim 2 (depends on 1) The system according to claim 1, wherein the processing circuitry is configured to render to the display the respective IEGM presentation strips, wherein fillers of the respective shapes are at least partially colored responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at the respective ones of the timing values. ### Claim 3 (depends on 1) The system according to claim 1, wherein the processing circuitry is configured to render to the display the respective IEGM presentation strips, wherein a transparency of the fillers of the respective shapes is adjusted responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at the respective ones of the timing values. ### Claim 4 (depends on 1) The system according to claim 1, wherein the processing circuitry is configured to: derive values on an attribute of respective ones of the signals responsively to respective ones of the sampled voltage values and respective ones of the timing values; and render to the display respective IEGM presentation strips, wherein: the fillers of the respective shapes are formatted according to a first formatting responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at respective ones of the timing values, and the fillers of respective ones of the shapes are also formatted according to a second formatting responsively to the derived values. ### Claim 5 (depends on 4) The system according to claim 4, wherein the attribute is a rate of change of the sampled voltage values. ### Claim 6 (depends on 4) The system according to claim 4, wherein the attribute is a fractionation of respective ones of the signals. ### Claim 7 (depends on 4) The system according to claim 4, wherein the first formatting includes color formatting and the second formatting includes transparency formatting. ### Claim 8 (depends on 4) The system according to claim 4, wherein the first formatting includes transparency formatting and the second formatting includes color formatting. ### Claim 9 (depends on 1) The system according to claim 1, wherein the processing circuitry is configured to render to the display the respective IEGM presentation strips with at least one additional marker selected from any one of the following: an alphanumeric symbol, another symbol, a line, a dot, a time annotation, a maximum in current data, a pacing spike. ### Claim 10 A medical method, comprising: receiving signals from a catheter configured to be inserted into a chamber of a heart of a living subject, and including catheter electrodes configured to contact tissue at respective locations within the chamber of the heart; in response to the signals, sampling respective voltage values of the signals at respective timing values; and rendering to a display respective intracardiac electrograms (IEGM) presentation strips representing electrical activity in the tissue that is sensed by the catheter electrodes at the respective locations, each of the IEGM presentation strips including a linear array of respective shapes associated with, and arranged in a temporal order of, respective ones of the timing values, fillers of the respective shapes being formatted responsively to respective ones of the sampled voltage values of a respective one of the signals sampled at respective ones of the timing values, wherein the shapes of the IEGM presentation strips are formatted to show additional attributes of the signals, including rate of change of the respective signal and a fractionation of the respective signal. ### Claim 11 (depends on 10) The method according to claim 10, wherein the rendering comprises rendering to the display the respective IEGM presentation strips, wherein fillers of the respective shapes are at least partially colored responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at the respective ones of the timing values. ### Claim 12 (depends on 10) The method according to claim 10, wherein the rendering comprises rendering to the display the respective IEGM presentation strips, wherein a transparency of the fillers of the respective shapes is adjusted responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at the respective ones of the timing values. ### Claim 13 (depends on 10) The method according to claim 10, further comprising deriving values on an attribute of respective ones of the signals responsively to respective ones of the sampled voltage values and respective ones of the timing values, and wherein the rendering comprises rendering to the display respective IEGM presentation strips, wherein: the fillers of the respective shapes are formatted according to a first formatting responsively to the respective ones of the sampled voltage values of the respective one of the signals sampled at respective ones of the timing values, and the fillers of respective ones of the shapes are also formatted according to a second formatting responsively to the derived values. ### Claim 14 (depends on 13) The method according to claim 13, wherein the attribute is a rate of change of the sampled voltage values. ### Claim 15 (depends on 13) The method according to claim 13, wherein the attribute is a fractionation of respective ones of the signals. ### Claim 16 (depends on 13) The method according to claim 13, wherein the first formatting includes color formatting and the second formatting includes transparency formatting. ### Claim 17 (depends on 13) The method according to claim 13, wherein the first formatting includes transparency formatting and the second formatting includes color formatting. ### Claim 18 (depends on 10) The method according to claim 10, wherein the rendering comprises rendering to the display the respective IEGM presentation strips with at least one additional marker selected from any one of the following: an alphanumeric symbol, another symbol, a line, a dot, a time annotation, a maximum in current data, a pacing spike. ### Claim 19 A software product, comprising a non-transient computer-readable medium in which program instructions are stored, which instructions, when read by a central processing unit (CPU), cause the CPU to: receive signals from a catheter configured to be inserted into a chamber of a heart of a living subject, and including catheter electrodes configured to contact tissue at respective locations within the chamber of the heart; in response to the signals, sample respective voltage values of the signals at respective timing values; and render to a display respective intracardiac electrograms (IEGM) presentation strips representing electrical activity in the tissue that is sensed by the catheter electrodes at the respective locations, each of the IEGM presentation strips including a linear array of respective shapes associated with, and arranged in a temporal order of, respective ones of the timing values, fillers of the respective shapes being formatted responsively to respective ones of the sampled voltage values of a respective one of the signals sampled at respective ones of the timing values, wherein the shapes of the IEGM presentation strips are formatted to show additional attributes of the signals, including rate of change of the respective signal and a fractionation of the respective signal.