Claims
- 1. A device for implantation within a patient's body, comprising:
- means for detecting occurrences of events within said patient's body;
- telemetry means for transmitting stored information from said device to an external device in response to requests from said external device;
- first memory means for storing information with regard to occurrences of said events over a time period encompassing multiple requests from said external device for stored information;
- second memory means for storing present values of said information stored in said first memory means at times of requests from said external device; and
- means responsive to a request from said external device for employing information stored in said first and second memory means to derive values with regard only to events occurring since a preceding request from said external device may be derived.
- 2. A device according to claim 1 further comprising:
- temporary memory means for temporary storage of said present values of said information stored in said first memory means at times of requests from said external device; and
- a timer, defining a time period initiated in response to requests from said external device; and
- wherein said second memory means comprises means for storing information stored in said second memory means in response to expiration of said time period.
- 3. A device according to claim 2, further comprising fourth memory means for storing present values of events other than those stored in said first memory means; and
- wherein said second memory means comprises means for storing said present values of events other than those stored in said first memory means in said second memory means on expiration of said time period.
- 4. A device according to claim 1 or claim 2 or claim 3 wherein said information comprises numbers of occurrences of said events.
- 5. A device according to claim 4 wherein said events comprise multiple types of events and wherein said information comprises numbers of occurrences of said multiple types of events.
- 6. A device according to claim 1 or claim 2 or claim 3 wherein said values with regard only to events occurring since a preceding request from said external information comprises numbers of occurrences of said events since said preceding request.
- 7. A device according to claim 1 or claim 2 or claim 3 wherein said information comprises stored series of occurrences of said events.
- 8. A device according to claim 7 wherein said values with regard only to events occurring since a preceding request from said external information comprises a series of occurrences of said events since said preceding request.
Parent Case Info
This application is a division of application Ser. No. 09/015,125, filed Jan. 29, 1998 now U.S. Pat. No. 5,891,043, which was filed as a Provisional application Ser. No. 60/055,900 on Aug. 15, 1997, now abandoned.
US Referenced Citations (26)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0761255 |
Mar 1997 |
EPX |
9218198 |
Oct 1992 |
WOX |
Non-Patent Literature Citations (1)
Entry |
Waktare et al, "Holter, Loop Recorder, and Event Counter Capabilities of Implanted Devices", Pace, vol. 20 (10) Oct. 1997, Part II, pp. 2658-2669. |
Divisions (1)
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Number |
Date |
Country |
Parent |
015125 |
Jan 1998 |
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