초록 ▼

The disclosed system enables a user to monitor and control a remote equipment site from any remote location, over the Internet, while maintaining the operating software the system provider's server. All user data access is through the use of modules, or servlets, that prevent the provider's operatin

The disclosed system enables a user to monitor and control a remote equipment site from any remote location, over the Internet, while maintaining the operating software the system provider's server. All user data access is through the use of modules, or servlets, that prevent the provider's operating software from being directly accessed, thereby eliminating modification or alteration by any user. The system preferably provides several levels of access, through the use of access codes, to prevent unauthorized users from accessing information. The system communicates with remote units that are proximate the remote equipment and have communication capabilities to enable the remote units to have either one or two way communication with the provider software. The remote units have monitoring devices, that receiving status data from at least one piece of equipment for transmission to the provider software for storage and user access through the servlet(s). Each of the remote units is programmed by the user with definable maximums and minimums for data received from said monitoring means. If the values for a piece of equipment fall out of these ranges, the system provider is notified by the remote unit. The system provider can then notify the user through the use of a pager, cell phone, or other notification means. The provider software automatically contacts each of the remote units for each user, on a predetermined schedule, and updates data from each remote unit based. The provider software also enables either the user or the remote unit to request a data update in addition to the predetermined scheduled transmissions.

대표청구항 ▼

The disclosed system enables a user to monitor and control a remote equipment site from any remote location, over the Internet, while maintaining the operating software the system provider's server. All user data access is through the use of modules, or servlets, that prevent the provider's operatin

The disclosed system enables a user to monitor and control a remote equipment site from any remote location, over the Internet, while maintaining the operating software the system provider's server. All user data access is through the use of modules, or servlets, that prevent the provider's operating software from being directly accessed, thereby eliminating modification or alteration by any user. The system preferably provides several levels of access, through the use of access codes, to prevent unauthorized users from accessing information. The system communicates with remote units that are proximate the remote equipment and have communication capabilities to enable the remote units to have either one or two way communication with the provider software. The remote units have monitoring devices, that receiving status data from at least one piece of equipment for transmission to the provider software for storage and user access through the servlet(s). Each of the remote units is programmed by the user with definable maximums and minimums for data received from said monitoring means. If the values for a piece of equipment fall out of these ranges, the system provider is notified by the remote unit. The system provider can then notify the user through the use of a pager, cell phone, or other notification means. The provider software automatically contacts each of the remote units for each user, on a predetermined schedule, and updates data from each remote unit based. The provider software also enables either the user or the remote unit to request a data update in addition to the predetermined scheduled transmissions. nal VA delay in response to the operational VA delay not being less than the boundary interval, and restarting the VA interval with the boundary interval in response to the operational VA delay being less than the boundary interval. 2. The cardiac stimulator, as set forth in claim 1, wherein the boundary interval defines an interval between normal sinus rate and a ventricular tachyarrhythmia. 3. The cardiac stimulator, as set forth in claim 1, wherein the boundary interval defines an interval between a well-tolerated ventricular tachyarrhythmia and a moderately-tolerated ventricular tachyarrhythmia. 4. A method of operating a cardiac stimulator comprising the acts of: determining an operational VA delay by subtracting an AV interval from an AA interval, deterring whether a VV interval is less than a ventricular tachyarrhythmia boundary interval, if the VV interval is not less than the boundary interval, restarting a VA interval with the operational VA delay, if the VV interval is less than the boundary interval, determining whether the operational VA delay is less than the boundary interval, restarting the VA interval with the operational VA delay in response to the operational VA delay not being less than the boundary rate interval, and restarting the VA interval with the boundary interval in response to the operational VA delay being less than the boundary interval. 5. The method, as set forth in claim 4, wherein the boundary interval defines an interval between normal sinus rate and a ventricular tachyarrhythmia. 6. The method, as set forth in claim 4, wherein the boundary interval defines an interval between a well-tolerated ventricular tachyarrhythmia and a moderately-tolerated ventricular tachyarrhythmia. 7. A method of operating a cardiac stimulator comprising the acts of: determining an operational VA delay by subtracting an AV interval from an AA interval, determining whether a W interval is less than a ventricular tachyarrhythmia boundary interval, if the VV interval is not less than the boundary interval, restarting a VA interval with the operational VA delay, and if the VV interval is less than the boundary interval, restarting the VA interval with the boundary interval. 8. The method, as set forth in claim 7, wherein the boundary interval defines an interval between normal sinus rate and a ventricular tachyarrhythmia. 9. The method, as set forth in claim 7, wherein the boundary interval defines an interval between a well-tolerated ventricular tachyarrhythmia and a moderately-tolerated ventricular tachyarrhythmia. 10. A cardiac stimulator comprising: a control circuit including: computational circuitry adapted to determine an operational VA delay by subtracting an AV interval from an AA interval; detection circuitry adapted to determine whether a ventricular tachyarrhythmia is present; and timing circuitry adapted to time a VA interval determined based on whether the ventricular tachyarrhythmia is present and at least one of the operational VA delay and a predetermined ventricular tachyarrhythmia rate boundary interval; and an atrial stimulus generator adapted to deliver a pace at the end of the VA interval. 11. The cardiac stimulator, as set forth in claim 10, wherein the timing circuitry includes a timer with restart circuitry, and wherein the VA interval is set to the ventricular tachyarrhythmia rate boundary interval if the ventricular tachyarrhythmia is present and the operational VA delay is less than the ventricular tachyarrhythmia rate boundary interval. 12. The cardiac stimulator, as set forth in claim 11, wherein the VA interval is set to the operational VA delay if the ventricular tachyarrhythmia is present and the operational VA delay is not less than the ventricular tachyarrhythmia rate boundary interval. 13. The cardiac stimulator, as set forth in claim 12, wherein the VA interval is set to the operational VA delay if the ventricular tachyarrhythmia is not present. 14. Th e cardiac stimulator, as set forth in claim 13, wherein the detection circuitry includes a comparator having a first input representative of a VV interval, a second input representative of the ventricular tachyarrhythmia rate boundary interval, and an output representative of whether the ventricular tachyarrhythmia is present. 15. The cardiac stimulator, as set forth in claim 10, wherein the timing circuitry includes a timer with restart circuitry, and wherein the VA interval is set to the ventricular tachyarrhythmia rate boundary interval, if the ventricular tachyarrhythmia is present. 16. The cardiac stimulator, as set forth in claim 15, wherein the VA interval is set to the operational VA delay if the ventricular tachyarrhythmia is not present. 17. The cardiac stimulator, as set forth in claim 16, wherein the detection circuitry includes a comparator having a first input representative of a VV interval, a second input representative of the ventricular tachyarrhythmia rate boundary interval, and an output representative of whether the ventricular tachyarrhythmia is present. 18. A method of operating a cardiac stimulator, the method comprising: determining an operational VA delay by subtracting an AV interval from an AA interval; detecting a ventricular tachyarrhythmia; determining a VA interval based on whether the ventricular tachyarrhythmia is present and at least one of the operational VA delay and a predetermined ventricular tachyarrhythmia rate boundary interval; and delivering a pace at the end of the VA interval. 19. The method, as set forth in claim 18, wherein determining the VA interval includes setting the VA interval to the ventricular tachyarrhythmia rate boundary interval if the ventricular tachyarrhythmia is detected and the operational VA delay is less than the ventricular tachyarrhythmia rate boundary interval. 20. The method, as set forth in claim 19, wherein determining the VA interval further includes setting the VA interval to the operational VA delay if the ventricular tachyarrhythmia is detected and the operational VA delay is not less than the ventricular tachyarrhythmia rate boundary interval. 21. The method, as set forth in claim 20, wherein determining the VA interval further includes setting the VA interval to the operational VA delay if the ventricular tachyarrhythmia is not detected. 22. The method, as set forth in claim 21, wherein the predetermined ventricular tachyarrhythmia rate boundary interval is a predetermined VV interval corresponding to one of: a first boundary between a normal sinus rate and a ventricular tachyarrhythmia rate; and a second boundary between a well-tolerated ventricular tachyarrhythmia rate and a moderately-tolerated ventricular tachyarrhythmia rate. 23. The method, as set forth in claim 22, wherein detecting the ventricular tachyarrhythmia includes: comparing a VV interval to the ventricular tachyarrhythmia rate boundary interval; and declaring a ventricular tachyarrhythmia if the VV interval is less than the ventricular tachyarrhythmia rate boundary interval. 24. The method, as set forth in claim 18, wherein determining the VA interval includes setting the VA interval to the ventricular tachyarrhythmia rate boundary interval if the ventricular tachyarrhythmia is detected. 25. The method, as set forth in claim 24, wherein determining the VA interval includes setting the VA interval to the operational VA delay if the ventricular tachyarrhythmia is not detected. 26. The method, as set forth in claim 25, wherein the predetermined ventricular tachyarrhythmia rate boundary interval is a predetermined VV interval corresponding to one of: a first boundary between a normal sinus rate and a ventricular tachyarrhythmia rate; and a second boundary between a well-tolerated ventricular tachyarrhythmia rate and a moderately-tolerated ventricular tachyarrhythmia rate. 27. The method, as set forth in claim 26, wherein detecting the ventricular tachyarrhythmi a includes: comparing a VV interval to the ventricular tachyarrhythmia rate boundary interval; and declaring a ventricular tachyarrhythmia if the VV interval is less than the ventricular tachyarrhythmia rate boundary interval. it including: computational circuitry adapted to determine an operational VA delay by subtracting an AV interval from an AA interval; detection circuitry adapted to determine whether a ventricular tachyarrhythmia is present; and timing ci