초록 ▼

An implantable medical device determines activity levels over a set of time periods, preferably on the order of seconds, minutes and hours and a display is enabled for days or weeks at recorded activity levels over a range of dates. This enables physician review of patient functional status. Additio

An implantable medical device determines activity levels over a set of time periods, preferably on the order of seconds, minutes and hours and a display is enabled for days or weeks at recorded activity levels over a range of dates. This enables physician review of patient functional status. Additional physiologic data can be recorded along with the activity data, and this too may be reported out from the implanted device to a medical communications system for alarm purposes, titrating drugs or other monitoring tasks.

대표청구항 ▼

[ What is claimed is:] [1.] A medical information system, comprising:an implantable medical device comprising a housing having an activity sensor and circuitry therein for recording output from said activity sensor, wherein said output is compressed in accord with a processing circuit which operates

[ What is claimed is:] [1.] A medical information system, comprising:an implantable medical device comprising a housing having an activity sensor and circuitry therein for recording output from said activity sensor, wherein said output is compressed in accord with a processing circuit which operates after the expiry of each of a series of first size time intervals to iteratively:a) add up via a summation means a number of activity counts sensed per a first one of each first size time intervals to produce a first sum, and if said first sum is greater than a predetermined value, store a count value representing the result of comparing said first time interval first sum to said predetermined value in a memory means,b) repeat the add up procedure for subsequent ones of said first size time intervals to store a first size time interval count value for said first size time intervals occurring within a second size time interval in said memory means, andc) determine by computation a first display value for a representation of said recorded first and second values, and store said first display value representing said total value for each said second time interval; andA display device comprising means to receive data from the implantable device and processing means for generating a display, wherein the display comprises a representation of said first display values over time.