Patent US4512466A successfully refreshed from Google Patents.
Patent US5733247A successfully refreshed from Google Patents.
US5733247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
MR compatible patient monitor
Assignee: Koninklijke Philips NV
•
Filing: 1995-12-20
•
Granted: 1998-03-31
•
Expires: 2015-12-20
Abstract
Abstract A MR compatible monitoring system has a fiber optic data link between the patient monitor and the control room display/keyboard in a magnetic resonance imaging suite to allow for continuous monitoring of a patient's vital signs and provides critical care patients with the same diagnostic options as stable patients. The patient monitor is mounted on the far end of a magnetic resonance compatible patient transporter. The patient transporter sends video data and receives control data from the control room. During the imaging, the patient monitor is located within the magnet room. Magnetic resonance imaging systems are very sensitive to radio frequency interference (RFI) from other equipment and may produce image artifacts because of this interference. Using a fiber optic data link between the patient monitor near the magnet and the control room will minimize the potential RFI.
Inventors
- 👤 Joseph R. Fallon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:46
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0002; A61B5/0015; A61B5/0017; A61B5/05; A61B5/055; A61B5/0033; A61B5/0046
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
A MR compatible patient monitoring system for connecting to a remote terminal comprising: a patient transporter; a shielded enclosure attached to the patient transporter; a system interconnect, positioned external to the the shielded enclosure; a microprocessor, positioned within the shielded enclosure; a LCD display, positioned within the shielded enclosure; a control panel, positioned within the shielded enclosure; characterizing means for characterizing a magnetic field; a MR immune transceiver positioned within the shielded enclosure, connecting to the system interconnect; and a physiomodule, being operative to monitor a patient, positioned within the shielded enclosure; wherein the LCD display, the control panel, the characterizing means, the MR immune transmission means, and the physiomodule are connected to the microprocessor.
Claim 2
Dependent Claim
115 words
A MR compatible patient monitoring system for connecting to a remote terminal comprising: a patient transporter; a shielded enclosure attached to the patient transporter; a system interconnect, positioned external to the the shielded enclosure; a microprocessor, positioned within the shielded enclosure; a LCD display, positioned within the shielded enclosure; a control panel, positioned within the shielded enclosure; characterizing means for characterizing a magnetic field; a MR immune transceiver positioned within the shielded enclosure, connecting to the system interconnect; and a physiomodule, being operative to monitor a patient, positioned within the shielded enclosure; wherein the LCD display, the control panel, the characterizing means, the MR immune transmission means, and the physiomodule are connected to the microprocessor.
Claim 3
Dependent Claim
40 words
A MR compatible patient monitoring system, as defined in claim 1, wherein the characterizing means includes a magnetic field sensor and a magnetic field indicator, connected to the magnetic field sensor, that indicates the magnetic field near the MR scanner.
Claim 4
Dependent Claim
20 words
A MR compatible patient monitoring system, as defined in claim 2, the magnetic field indicator further includes a visual indicator.
Claim 5
Dependent Claim
20 words
A MR compatible patient monitoring system, as defined in claim 2, the magnetic field indicator further includes an auditory indicator.
Claim 6
Dependent Claim
43 words
A MR compatible patient monitoring system, as defined in claim 2, the magnetic field indicator further includes a monitor protector that is operative to disable the patient monitoring system when a selected threshold is exceeded to prevent damage to the patient monitoring system.
Claim 7
Dependent Claim
21 words
A MR compatible patient monitoring system, as defined in claim 1, wherein the system interconnect is a manual cable connector assembly.
Claim 8
Dependent Claim
20 words
A MR compatible patient monitoring system, as defined in claim 6, where the characterizing means is a magnetic field sensor.
Claim 9
Dependent Claim
20 words
A MR compatible patient monitoring system, as defined in claim 6, wherein the system interconnect is a retracting cable assembly.
Claim 10
Dependent Claim
23 words
A MR compatible patient monitoring system, as defined in claim 1, wherein the MR immune transmission means is a fiber optic data link.
Claim 11
Dependent Claim
22 words
A MR compatible patient monitoring system, as defined in claim 1, wherein the MR immune transmission means is a duplex microwave link.
Claim 12
Dependent Claim
22 words
A MR compatible patient monitoring system, as defined in claim 1, wherein the MR immune transmission means is a duplex infra-red link.
References Cited (Backward Citations)
US3847483A
Cited
US4227075A
Cited
US4739521A
Cited
US5209233A
Cited
US4991587A
Cited
US5038785A
Cited
US4737712A
Cited
US5134373A
Cited
US4901141A
Cited
US4991580A
Cited
US5394873A
Cited
US5464014A
Cited
US5445162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-03-30 | 2001-09-29 | 2002-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-30 | 2005-09-29 | 2006-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-30 | 2009-09-29 | 2010-03-31 | $7700.00 | Window Closed / Lapsed |