US6007493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implanted automated last session identification
Assignee: Medtronic Inc
•
Filing: 1999-03-29
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Granted: 1999-12-28
•
Expires: 2019-03-29
Abstract
Abstract An implantable device which stores information indicative of events occurring within a patient's body and related to operation of the device for transmission to an external device in response to a request from the external device. The implanted device is provided with a mechanism for retaining information as to the state of the information stored in the device at the time of a preceding request or interrogation from the external device and for storing cumulative information indicative of the operation of the device or events occurring within the patient's body over a time frame spanning multiple interrogations or requests from the external device. The two types of stored information together may be employed by the implanted device or the external device to derive information indicative only of events occurring since a preceding interrogation of the implanted device by the external device.
Inventors
- 👤 James H. Ericksen
- 👤 Eric V. Eisinger
- 👤 Jay R. Carey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:02
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61N1/37211; A61N1/362; A61N1/37; A61N1/3702
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
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.
Claim 2
Independent Claim
132 words
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.
Claim 3
Dependent Claim
76 words
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.
Claim 4
Dependent Claim
61 words
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.
Claim 5
Dependent Claim
22 words
A device according to claim 1 or claim 2 or claim 3 wherein said information comprises numbers of occurrences of said events.
Claim 6
Dependent Claim
28 words
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.
Claim 7
Dependent Claim
40 words
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.
Claim 8
Dependent Claim
23 words
A device according to claim 1 or claim 2 or claim 3 wherein said information comprises stored series of occurrences of said events.
Claim 9
Dependent Claim
35 words
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.
References Cited (Backward Citations)
US4316472A
Cited
US4316472C1
Cited
US4375817A
Cited
US4557266A
Cited
US4384585A
Cited
US4726380A
Cited
US4577633A
Cited
US4727877A
Cited
US4587970A
Cited
US4880005B1
Cited
US4880005A
Cited
US4800883A
Cited
US4953551A
Cited
US4949719A
Cited
US5088488A
Cited
US5117824A
Cited
US5163427A
Cited
US5188105A
Cited
US5144949A
Cited
US5331966A
Cited
WO1992018198A2
Cited
US5309919A
Cited
US5300093A
Cited
US5383909A
Cited
US5411031A
Cited
US5669391A
Cited
US5545186A
Cited
EP0761255A1
Cited
US5722999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-27 | 2003-06-28 | 2003-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-27 | 2007-06-28 | 2007-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-27 | 2011-06-28 | 2011-12-28 | $7700.00 | Window Closed / Lapsed |