Source: http://www.google.fr/patents/US8660638
Timestamp: 2017-12-13 03:16:29
Document Index: 559786409

Matched Legal Cases: ['art 690', 'art 690', 'art 690', 'art 590', 'Application No. 03808539', 'art 1', 'art 1', 'Application No. 2004', 'Application No. 2004']

Brevet US8660638 - Syncope logbook and method of using same - Google Brevets
Methods and systems are directed to acquiring and organizing information associated with at least one syncope event. A syncope event may be a suspected syncope event, a verified syncope event or a syncope event that is suspected and verified. Automated processes are used to collect information associated...http://www.google.fr/patents/US8660638?utm_source=gb-gplus-shareBrevet US8660638 - Syncope logbook and method of using same
Numéro de publication US8660638 B2
Numéro de demande US 12/616,536
Autre référence de publication US7630755, US20060253042, US20100056929
Numéro de publication 12616536, 616536, US 8660638 B2, US 8660638B2, US-B2-8660638, US8660638 B2, US8660638B2
Inventeurs Jeffrey E. Stahmann, John D. Hatlestad, Jesse W. Hartley, Avram Scheiner
Citations de brevets (149), Citations hors brevets (39), Classifications (19), Événements juridiques (1)
US 8660638 B2
1. An automated method for collecting and organizing information associated with at least one syncope-related event of a patient, the at least one syncope-related event comprising at least a suspected syncope-related event, a verified syncope-related event, or a suspected and verified syncope-related event, the method comprising:
selecting one or more patient conditions associated with one or more of the syncope-related events for which acquisition of onset data is desired;
sensing for the one or more selected patient conditions;
configuring a buffer memory based on buffer memory requirements appropriate for the selected one or more monitored patient conditions;
temporarily storing information associated with the one or more sensed patient conditions in the configured buffer memory;
a processor configured for, in response to a triggering event, acquiring occurrence information associated with the one or more sensed patient conditions during occurrence of the one or more of the syncope-related events, the occurrence information temporarily stored in the buffer memory defining onset data associated with occurrence of the one or more of the syncope-related events;
the processor configuring the buffer memory using buffer memory requirements associated with the triggering event;
organizing the onset data and the occurrence information as a syncope log entry; and
storing the syncope log entry;
wherein at least sensing for the one or more patient conditions, temporarily storing the occurrence information, and organizing the onset data and the occurrence information are respectively performed at least in part implantably.
10. A medical system for collecting and organizing information associated with at least one syncope-related event of a patient, the at least one syncope-related event comprising a suspected syncope-related event, a verified syncope-related event, or a suspected and verified syncope-related event, the system comprising:
a sensor arrangement configured to sense for one or more patient conditions;
a monitoring unit coupled to the sensor arrangement and configured to monitor for one or more sensed patient conditions associated with one or more syncope-related events for which acquisition of onset data is desired;
a configurable buffer memory and a long-term memory;
a processor coupled to the buffer memory and configurable by the processor to store information associated with the one or more sensed conditions, the buffer memory configurable by the processor based on buffer memory requirements appropriate for the one or more sensed patient conditions, the processor configured to:
temporarily store information associated with the one or more sensed patient conditions in the configured buffer memory;
acquire occurrence information associated with the one or more sensed patient conditions during occurrence of the one or more of the syncope-related events, the occurrence information temporarily stored in the buffer memory defining onset data associated with occurrence of the one or more of the syncope-related events;
acquire the occurrence information in response to at least one triggering event associated with at least one syncope-related event, the processor configuring the buffer memory using buffer memory requirements associated with the at least one triggering event;
organize the onset data and the occurrence information as a syncope log entry; and
store the syncope log entry in the long-term memory;
wherein at least the sensor arrangement, the monitoring unit, the processor, and the buffer memory comprises an implantable component.
This application is a continuation of U.S. patent application Ser. No. 11/121,450, filed on May 4, 2005, which is incorporated herein by reference.
pressure congestion associated with cardiac-originated syncope.
The type parameter 523 may contain abbreviations for various syncope events. For example S and O-S may abbreviate standing and opine sitting respectively.
Following selection of one or more episodes in the menu, activation of the detail button 542 causes detailed textual information associated with a selected event to be presented on the display screen. The detail information may be displayed in the area of the screen 505 previously occupied by the menu 510, for example. The user may scroll back and forth through the textual information for the one or more selected events using the prey button 541 and the next button 543. The textual information may be printed upon activation of the print button 544, or may be saved to a disk, or other storage medium, through activation of the save to disk button 555.
Graphical information associated with the selected events may be displayed upon activation of the signals button 562. In one implementation, a respiration waveform acquired during, before and/or after a selected event may be displayed in the area 505 of the display previously used for the menu 510. Waveforms of other parameters, e.g., cardiac rhythm, patient activity, may additionally or alternatively be displayed. In one implementation, a marked waveform may be displayed. For example, a marked respiration waveform may include the respiration waveform acquired before, during, and after the event, along with one or more symbols aligned with the respiration waveform to indicate the occurrence of one or more conditions. The symbol may provide a numerical value or a textual description associated with the syncope characteristic, e.g., respiration rate. A user may scroll through the waveforms associated with the selected events using the prey and next buttons 541, 543.
Portions of the intracardiac lead system 610 are inserted into the patient's heart 690. The intracardiac lead system 610 includes one or more electrodes configured to sense electrical cardiac activity of the heart, deliver electrical stimulation to the heart, sense the patient's transthoracic impedance, and/or sense other physiological parameters, e.g., cardiac chamber pressure or temperature. Portions of the housing 601 of the pulse generator 605 may optionally serve as a can electrode.
The lead system 610 of the CRM 600 may incorporate one or more transthoracic impedance sensors that may be used to acquire the patient's respiration waveform, or other respiration-related information which may be associated with syncope-related conditions. The transthoracic impedance sensor may include, for example, one or more intracardiac electrodes 641, 642, 651-655, 663 positioned in one or more chambers of the heart 690. The intracardiac electrodes 641, 642, 651-655, 663 may be coupled to impedance drive/sense circuitry 630 positioned within the housing of the pulse generator 605.
The voltage signal developed at the impedance sense electrode 652 is proportional to the patient's transthoracic impedance and represents the patient's respiration waveform. The transthoracic impedance increases during respiratory inspiration and decreases during respiratory expiration. The peak-to-peak transition of the transthoracic impedance is proportional to the amount of air moved in one breath, denoted the tidal volume. The amount of air moved per minute is denoted the minute ventilation. A normal “at rest” respiration pattern, e.g., during non-REM sleep, includes regular, rhythmic inspiration expiration cycles without substantial interruptions.
The lead system 610 may include one or more cardiac pace/sense electrodes 651-655 positioned in, on, or about one or more heart chambers for sensing electrical signals from the patient's heart 690 and/or delivering pacing pulses to the heart 590. The intracardiac sense/pace electrodes 651-655, such as those illustrated in FIG. 6, may be used to sense and/or pace one or more chambers of the heart, including the left ventricle, the right ventricle, the left atrium and/or the right atrium. The lead system 610 may include one or more defibrillation electrodes 641, 642 for delivering defibrillation/cardioversion shocks to the heart.
Circuitry for implementing a syncope logbook system may be positioned within the primary housing of the ITCS device. The primary housing (e.g., the active or non-active can) of the ITCS device, for example, may be configured for positioning outside of the rib cage at an intercostal or subcostal location, within the abdomen, or in the upper chest region (e.g., subclavian location, such as above the third rib). In one implementation, one or more electrodes may be located on the primary housing and/or at other locations about, but not in direct contact with the heart, great vessel or coronary vasculature.
An ITCS device can incorporate circuitry, structures and functionality of the subcutaneous implantable medical devices disclosed in commonly owned U.S. Pat. Nos. 5,203,348; 5,230,337; 5,360,442; 5,366,496; 5,397,342; 5,391,200; 5,545,202; 5,603,732; and 5,916,243 and commonly owned U.S. patent applications “Subcutaneous Cardiac Sensing, Stimulation, Lead Delivery, and Electrode Fixation Systems and Methods,” Ser. No. 60/462,272, filed Apr. 11, 2003, and “Hybrid Transthoracic/Intrathoracic Cardiac Stimulation Devices and Methods,” published as US 2004/0230229 (Lovett et al.), and “Methods and Systems Involving Subcutaneous Electrode Positioning Relative to A Heart,” published as US 2004/0230230 (Lindstrom et al.), which are incorporated by reference.
The approaches illustrated and described herein are generally presented in terms of a syncope logbook system configured to organize medical information associated with syncope-related events. The syncope logbook as described in the various embodiments may be utilized in conjunction with other types of medical event logbooks, including, for example, a sleep logbook, medical event logbook, and/or a cardiac arrhythmia logbook. A system may include one or more store information relevant to one or more types of logbooks. Various types of logbooks are described in the commonly owned U.S. Patent Application Publication US 2005/0080348 (Stahmann et al.), U.S. Pat. No. 7,572,225 (Stahmann et al.), and U.S. Pat. Nos. 6,449,504 and 6,843,801, which are incorporated herein by reference.
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Classification coopérative A61B5/02028, A61N1/37247, A61B5/02405, A61B5/0215, G06F19/3418, A61B5/14532, A61B5/0402, A61B5/1116, A61N1/362, A61B5/11, A61B5/145, G06F19/3481, A61B5/0205, A61B5/0031, A61B5/0476, G06F19/3406, A61B5/14546