US5669391A
Expired / Lapsed
US
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Apparatus and method for presenting patient electrocardiogram and implantable device status information
Assignee: Pacesetter Inc
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Filing: 1996-06-21
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Granted: 1997-09-23
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Expires: 2016-06-21
Abstract
Abstract An implantable cardiac therapy device collects patient ECG and device status information, including cardiac event interval information, why therapy was or was not applied, and patient response to therapy, in connection with an arrhythmic episode and correlates such information in a data frame that may be stored for later telemetric transmission to an external instrument or that may be transmitted in real time to the external instrument. The data frame is decoded and parsed by the external instrument for presentation to an attending physician in a time correlated format.
Inventors
- 👤 Michael O. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:15
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61N1/37211; A61N1/362; A61N1/37; A61N1/3702; A61N1/37235; A61N1/37247
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
149 words
Apparatus for presenting patient electrocardiogram and implantable device status information, comprising: an implanted cardiac therapy device including means for sensing a patient electrocardiogram signal and a processor for generating and collating device status information, said status information including cardiac event interval information, why a therapy was or was not applied, and patient response to therapy, and for storing said status information and said patient electrocardiogram signal; output means in said implanted cardiac therapy device having an input for receiving said stored electrocardiogram signal and status information and for assembling and outputting a data frame therefrom; an external display apparatus including a decoder for separating said data frame into said electrocardiogram signal and said status information; and a display for presenting said electrocardiogram signal and said status information with portions of said status information presented in said display in proximity to portions of said electrocardiogram signal to which they relate.
Claim 2
Dependent Claim
149 words
Apparatus for presenting patient electrocardiogram and implantable device status information, comprising: an implanted cardiac therapy device including means for sensing a patient electrocardiogram signal and a processor for generating and collating device status information, said status information including cardiac event interval information, why a therapy was or was not applied, and patient response to therapy, and for storing said status information and said patient electrocardiogram signal; output means in said implanted cardiac therapy device having an input for receiving said stored electrocardiogram signal and status information and for assembling and outputting a data frame therefrom; an external display apparatus including a decoder for separating said data frame into said electrocardiogram signal and said status information; and a display for presenting said electrocardiogram signal and said status information with portions of said status information presented in said display in proximity to portions of said electrocardiogram signal to which they relate.
Claim 3
Dependent Claim
56 words
The apparatus of claim 1 wherein said sensed patient electrocardiogram signal comprises an analog signal and said stored electrocardiogram signal comprises a digital signal, said apparatus further comprising: an analog to digital converter for receiving said analog patient electrocardiogram from said means for sensing and for converting said analog electrocardiogram signal into a digital electrocardiogram signal.
Claim 4
Dependent Claim
12 words
The apparatus of claim 2, wherein said output means comprises a multiplexer.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1, further comprising a means for storing said data frame.
Claim 6
Dependent Claim
28 words
The apparatus of claim 1, wherein said output means includes telemetry means for transmitting said data frame from said implanted cardiac therapy device to said external display apparatus.
Claim 7
Dependent Claim
41 words
The apparatus of claim 1, wherein said output means includes means for multiplexing the portion of said data frame including said device status information into a portion of said stored electrocardiogram signal corresponding to a refractory period of said electrocardiogram signal.
Claim 8
Independent Claim
121 words
A method for presenting status information included with an electrocardiogram, comprising the steps of: generating in an implanted therapy device a data frame by multiplexing in said data frame patient electrocardiogram information and device status information, said status information including cardiac event interval information and why a therapy was or was not applied; providing said data frame to an external instrument having a display apparatus; demultiplexing said data frame to separate said data frame into said electrocardiogram information and said status information; and presenting the separated status information and patient electrocardiogram information on said display apparatus in a correlated manner whereby status information from a particular point in time is presented proximate the portion of the electrocardiogram to which it relates.
Claim 9
Independent Claim
121 words
A method for presenting status information included with an electrocardiogram, comprising the steps of: generating in an implanted therapy device a data frame by multiplexing in said data frame patient electrocardiogram information and device status information, said status information including cardiac event interval information and why a therapy was or was not applied; providing said data frame to an external instrument having a display apparatus; demultiplexing said data frame to separate said data frame into said electrocardiogram information and said status information; and presenting the separated status information and patient electrocardiogram information on said display apparatus in a correlated manner whereby status information from a particular point in time is presented proximate the portion of the electrocardiogram to which it relates.
Claim 10
Dependent Claim
34 words
The method of claim 7, wherein said step of generating a data frame includes interleaving said status information in a portion of said electrocardiogram information corresponding to a refractory period of said electrocardiogram information.
Claim 11
Dependent Claim
14 words
The method of claim 7, further comprising the step of storing said data frame.
Claim 12
Dependent Claim
75 words
A cardiac diagnostic method, comprising the steps of: providing an implanted cardiac therapy device; acquiring a patient electrocardiogram with said device; generating device status information including cardiac event interval information, why a therapy was or was not applied, and patient response to therapy; collating said patient electrocardiogram and said implanted cardiac therapy device status information: providing a data frame; assembling said collated information into said data frame; and storing said data frame for later retrieval.
Claim 13
Dependent Claim
75 words
A cardiac diagnostic method, comprising the steps of: providing an implanted cardiac therapy device; acquiring a patient electrocardiogram with said device; generating device status information including cardiac event interval information, why a therapy was or was not applied, and patient response to therapy; collating said patient electrocardiogram and said implanted cardiac therapy device status information: providing a data frame; assembling said collated information into said data frame; and storing said data frame for later retrieval.
Claim 14
Dependent Claim
29 words
The method of claim 10, further comprising the steps of: disassembling said data frame into electrocardiogram information and status information; and presenting the information derived from said data frame.
Claim 15
Dependent Claim
22 words
The method of claim 10, said collating step further comprising interleaving said electrocardiogram information with said status information within each data frame.
Claim 16
Independent Claim
98 words
A method for presenting information included with an electrocardiogram, comprising the steps of: collecting patient ECG and implantable cardiac therapy device status information, including cardiac event interval information, why therapy was or was not applied, and patient response to therapy; generating a data frame; correlating said ECG and status information in said data frame; storing said data frame in a memory of an implanted cardiac therapy device; transmitting via telemetry said data frame from said memory to an external instrument; and separating said ECG from said status information and presenting said ECG and status information on a display.
Claim 17
Independent Claim
98 words
A method for presenting information included with an electrocardiogram, comprising the steps of: collecting patient ECG and implantable cardiac therapy device status information, including cardiac event interval information, why therapy was or was not applied, and patient response to therapy; generating a data frame; correlating said ECG and status information in said data frame; storing said data frame in a memory of an implanted cardiac therapy device; transmitting via telemetry said data frame from said memory to an external instrument; and separating said ECG from said status information and presenting said ECG and status information on a display.
Claim 18
Dependent Claim
74 words
Apparatus for presenting patient electrocardiogram and implantable device status information comprising: means for collecting patient ECG and cardiac apparatus status information, including cardiac event interval information, why therapy was or was not applied, and patient response to therapy, relating to a detected arrhythmic episode; means for correlating said information in a data frame with said ECG for storage; telemetry means; and means for receiving and displaying said patient ECG and cardiac apparatus status information.
Claim 19
Dependent Claim
74 words
Apparatus for presenting patient electrocardiogram and implantable device status information comprising: means for collecting patient ECG and cardiac apparatus status information, including cardiac event interval information, why therapy was or was not applied, and patient response to therapy, relating to a detected arrhythmic episode; means for correlating said information in a data frame with said ECG for storage; telemetry means; and means for receiving and displaying said patient ECG and cardiac apparatus status information.
Claim 20
Dependent Claim
69 words
An external instrument for a cardiac therapy system, comprising: means for separating a data frame received from an implanted cardiac therapy device into patient ECG and cardiac apparatus status information, said status information including cardiac event interval information, why therapy was or was not applied, and patient response to therapy, relating to a detected arrhythmic episode information; and means for presenting said patient ECG and cardiac apparatus status information.
Claim 21
Dependent Claim
69 words
An external instrument for a cardiac therapy system, comprising: means for separating a data frame received from an implanted cardiac therapy device into patient ECG and cardiac apparatus status information, said status information including cardiac event interval information, why therapy was or was not applied, and patient response to therapy, relating to a detected arrhythmic episode information; and means for presenting said patient ECG and cardiac apparatus status information.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-22 | 2001-03-24 | 2001-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-22 | 2005-03-24 | 2005-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-22 | 2009-03-24 | 2009-09-23 | $7700.00 | Window Closed / Lapsed |