Alarm for patient monitor and life support equipment

• US 5,534,851 A
• Filed: 06/06/1994
• Issued: 07/09/1996
• Est. Priority Date: 03/06/1991
• Status: Expired due to Fees

• Current Assignee: Masimo Corporation
• Original Assignee: Linda G. Russek
• Inventors: Russek, Linda G.
• Primary Examiner(s): MULLEN, THOMAS J
• Application Number:
  US08/254,393
• Time in Patent Office: 764 Days
• Field of Search: 340/573, 340/311.1, 340/825.44, 340/524-25, 340/539, 340/502, 128/903, 128/202.22, 455/351, 455/53.1, 455/54.1, 455/54.2, 455/100, 455/88-90, 368/10-12
• US Class Current: 340/573.4
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/747 in case of emergency, i.e. alerting emergency services
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G08B 5/228 combined with other devices having a different main function, e.g. watches
• CPC Class Codes: G08B 6/00 Tactile signalling systems, e.g. personal calling systems
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

An alarm system for notifying necessary medical and hospital personnel that a patient or the patient'"'"'s life support equipment require immediate response without providing the alarm signal to the monitored patient or surrounding patients, to prevent patient trauma which may otherwise result from the sound of the alarm. The system includes an alarm signal generator that provides a coded pulse indication of the patient and equipment type. The coded signal is sent to a master control unit preferably located at a nurses'"'"' station. The master control unit then transmits the coded alarm signal simultaneously to the appropriate group of pagers having vibrational annunciators and a visual display that describes the patient location and equipment type. The patients monitor and equipment at bedside and the pagers have no audio alarm signals. The alarm signal can only be terminated manually by an interrupt switch at the bedside.

Claims

1. A communications system for medical use comprising:

alarm signal generator means in communication with medical equipment associated with each of one or more patients for generating an alarm signal, said alarm signal identifying readings from said medical equipment;

means for transmitting one or more paging messages to at least one paging means in response to said alarm signal, said one or more paging messages providing each of said at least one paging means with medical equipment status output information based upon said alarm signal, each of said at least one paging means having means for receiving said one or more paging messages and providing a visual display thereof;

key input means for providing up-to-date staffing information to a memory means, said up-to-date staffing information being relevant to said one or more patients; and

processing means for processing said up-to-date staffing information and said medical equipment status output information in order to prioritize said one or more paging messages, and automatically route said one or more paging messages to appropriate and available personnel based upon the up-to-date staffing information.

2. The communications system of claim 1 in which the at least one paging means displays readings from said medical equipment.

3. A method for communicating medical information comprising:

generating an alarm signal with an alarm signal generator means, the alarm signal generator means being in communication with medical equipment associated with each of one or more patients, said alarm signal identifying readings from said medical equipment;

transmitting one or more paging messages in response to the alarm signal with a transmitting means to at least one paging means, said one or more paging messages providing each of said at least one paging means with medical equipment status output information based upon said alarm signal, each of said at least one paging means having means for receiving said one or more paging messages and providing a visual display thereof;

providing up-to-date staffing information to a memory means with a key input means, said up-to-date staffing information being relevant to said one or more patients; and

processing said up-to-date staffing information and said medical equipment status output information with a processing means to prioritize said one or more paging messages and automatically route said one or more paging messages to appropriate and available personnel based on the up-to-date staffing information.

4. The method of claim 3 further comprising the step of displaying said readings from said medical equipment on said at least one paging means.

5. A communications system for medical use comprising:

a signal generator means in communication with medical equipment associated with each of one or more patients for generating a signal, said signal representing medical equipment readings; and

means for transmitting one or more radio frequency (RF) messages to at least one receiving means in response to said signal, said one or more radio frequency (RF) messages providing each of said at least one receiving means with medical equipment status output information based upon said signal, each of said at least one receiving means having means for communicating said one or more radio frequency (RF) messages to each user of said at least one receiving means; and

each of said at least one receiving means further comprises means for transmitting one or more responsive radio frequency (RF) messages.

6. A communications system according to claim 5 in which said means for communicating said one or more RF messages to each said user of said at least one receiving means comprises a visual display.

7. A communications system according to claim 5 in which said means for communicating said one or more RF messages to each said user of said at least one receiving means comprises a privacy-providing earphone.

8. A communications system according to claim 5 in which said means for transmitting one or more responsive RF messages comprises a keyboard.

9. A communications system according to claim 5 in which said means for transmitting one or more responsive RF messages comprises a privacy-providing mouthpiece which encloses the user'"'"'s mouth.

10. A communications system according to claim 5 in which said medical equipment status output information comprises patient location information.

11. A communications system according to claim 5 in which said medical equipment status output information comprises patient identification information.

12. A communications system according to claim 5 in which said medical equipment status output information comprises medical equipment identification information.

13. A communications system according to claim 5 in which said medical equipment status output information comprises medical equipment functional status information.

14. A communications system according to claim 5 in which said medical equipment status output information comprises patient medical status information.

15. A communications system according to claim 5 further comprising:

key input means for providing up-to-date staffing information to a memory means, said up-to-date staffing information being relevant to said one or more patients; and

processing means for processing said up-to-date staffing information and said medical equipment status output information in order to prioritize said one or more RF messages, and automatically route said one or more RF messages to appropriate and available personnel based upon the up-to-date staffing information.

16. A communications system according to claim 15 in which:

said key input means further provide for inputting medical data to said memory means, said medical data being relevant to said one or more patients; and

said processing means further provide for processing said medical data, said up-to-date staffing information and said medical equipment status output information in order to prioritize said one or more RF messages, and automatically route said one or more RF messages to appropriate and available personnel based upon said medical data and said up-to-date staffing information.

17. A communications system according to claim 16 in which said medical data includes laboratory test results relevant to said one or more patients.

18. A communications system according to claim 5 further comprising:

key input means for providing medical data to a memory means, said medical data being relevant to said one or more patients; and

processing means for processing said medical data and said medical equipment status output information in order to prioritize said one or more RF messages, and automatically route said one or more RF messages to appropriate and available personnel based upon said medical data.

19. A communications system according to claim 18 in which said medical data includes laboratory test results relevant to said one or more patients.