Patent US4329328A successfully refreshed from Google Patents.
US5153584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature multilead biotelemetry and patient location system
Assignee: CARDIAC EVALUATION CENTER Inc WISCONSIN CORP
•
Filing: 1991-03-14
•
Granted: 1992-10-06
•
Expires: 2011-03-14
Abstract
Abstract A miniature multi-lead bio-telemetry and patient location systems includes one or more stationary location markers which transmit location data to an ECG unit worn by ambulatory patients. The electrocardiogram (ECG) unit monitors patient ECG data, a distress button and ECG unit status and combines this data with the location data received from one location marker and retransmits this combined data to a stationary receiver which may display the ECG data the system status data and the location data.
Inventors
- 👤 Ram M. Engira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/11; A61B5/1113; A61B5/0002; A61B5/0004; A61B5/0006; G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B3/1083; A61B5/68; A61B5/6887; A61B5/6889; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
162 words
A patient location system for locating a patient within a plurality of bounded spaces comprising: stationary location marker means fixed with respect to a bounded space for generating a location code; patient identification means affixed to a patient for generating a patient identification signal; low power link for communicating the location code from the stationary location marker means to the patient identification means only when the patient identification means is in the bounded space; a physiological monitor means for monitoring a physiological signal from the patient; first transmitter means affixed to the patient and communicating with the patient identification means and the physiological monitor means for transmitting the location code, the patient identification signal, and the physiological signal when the stationary location marker means is in communication with the patient identification means through the low power link; and stationary receiver means for receiving the location code and patient identification signal whereby the patient identification means may be associated with the location means.
Claim 2
Dependent Claim
162 words
A patient location system for locating a patient within a plurality of bounded spaces comprising: stationary location marker means fixed with respect to a bounded space for generating a location code; patient identification means affixed to a patient for generating a patient identification signal; low power link for communicating the location code from the stationary location marker means to the patient identification means only when the patient identification means is in the bounded space; a physiological monitor means for monitoring a physiological signal from the patient; first transmitter means affixed to the patient and communicating with the patient identification means and the physiological monitor means for transmitting the location code, the patient identification signal, and the physiological signal when the stationary location marker means is in communication with the patient identification means through the low power link; and stationary receiver means for receiving the location code and patient identification signal whereby the patient identification means may be associated with the location means.
Claim 3
Dependent Claim
27 words
The patient location system of claim 1 wherein the low power link means is comprised of an infrared transmitter and receiver means for communicating by infrared light.
Claim 4
Dependent Claim
29 words
The patient location system as recited in claim 1 wherein the physiological signal is a continuous signal and wherein the first transmitter provides continuous transmission of the physiological signal.
Claim 5
Dependent Claim
25 words
The biotelemetry and patient location system of claim 1 wherein the patient identification signal is encoded in the carrier frequency of the first transmitter means.
Claim 6
Dependent Claim
142 words
A bio-telemetry and patient location system for monitoring physiological signals of a patient within a bounded space which comprises: stationary location marker means for transmitting a presettable location code on a low power communication link, wherein said stationary location marker is fixed within a bounded space and the power level within the bounded space is above a signal threshold; mobile receiver means attached to the patient for receiving said location code signal only if it is above the signal threshold and including a physiological monitor means for monitoring a physiological signal from the patient; transmitter means communicating with the mobile receiver means for combining the location code signal received by the mobile receiver means with the physiological signal and transmitting the combined physiological signals and location code signal; and stationary receiver means for receiving the transmitted combined physiological signals and location code.
Claim 7
Dependent Claim
142 words
A bio-telemetry and patient location system for monitoring physiological signals of a patient within a bounded space which comprises: stationary location marker means for transmitting a presettable location code on a low power communication link, wherein said stationary location marker is fixed within a bounded space and the power level within the bounded space is above a signal threshold; mobile receiver means attached to the patient for receiving said location code signal only if it is above the signal threshold and including a physiological monitor means for monitoring a physiological signal from the patient; transmitter means communicating with the mobile receiver means for combining the location code signal received by the mobile receiver means with the physiological signal and transmitting the combined physiological signals and location code signal; and stationary receiver means for receiving the transmitted combined physiological signals and location code.
Claim 8
Dependent Claim
53 words
The bio-telemetry and patient location system of claim 5 wherein the transmitter means includes means for transmitting the combined physiological signal and location code on a radio frequency channel, and wherein the stationary receiver means includes means to identify the radio frequency channel of the received combined physiological signal and corresponding location code.
Claim 9
Dependent Claim
22 words
The bio-telemetry and patient location system of claim 5 wherein the location code signal is transmitted serially on an infrared light beam.
Claim 10
Dependent Claim
64 words
The bio-telemetry and patient location system of claim 5 wherein the mobile receiver means includes a patient activated distress switch means activated by the patient for producing a distress signal, and wherein the transmitter means includes means for combining the distress signal with the location code wherein the combined distress signal and location code signal and physiological signal is transmitted by the transmitter means.
Claim 11
Dependent Claim
48 words
The bio-telemetry and patient location system of claim 5 including an electrode status detector means comprising: impedance detector means for detecting electrode impedance outside of a predetermined range; and light emitting diode means for producing a visible indication of a high impedance detected by the impedance detector means.
References Cited (Backward Citations)
US3495584A
Cited
US3639907A
Cited
US3960140A
Cited
US3943918A
Cited
US3768017A
Cited
US3786190A
Cited
US3774594A
Cited
US3815109A
Cited
US3953848A
Cited
US3921621A
Cited
US4121573A
Cited
US3898984A
Cited
US4209787A
Cited
US4217588A
Cited
US3962697A
Cited
US3986498A
Cited
US4063410A
Cited
US4156867A
Cited
US4194179A
Cited
US4159018A
Cited
US4347501A
Cited
US4319241A
Cited
US4356486A
Cited
US4281664A
Cited
US4275385A
Cited
US4321933A
Cited
US4503862A
Cited
US4326535A
Cited
US4556063A
Cited
US4531526A
Cited
US4453162A
Cited
US4598275A
Cited
US4593284A
Cited
US4593273A
Cited
US4562840A
Cited
US4658831A
Cited
US4686988A
Cited
US4837568A
Cited
US4958645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |