Wrist alarm apparatus for sudden heart attack patient

• US 6,080,111 A
• Filed: 02/19/1998
• Issued: 06/27/2000
• Est. Priority Date: 02/19/1998
• Status: Expired due to Fees

• Current Assignee: Li Pao-Lang
• Original Assignee: Li Pao-Lang
• Inventors: Pao-Lang, Li
• Primary Examiner(s): O'Connor, Cary
• Assistant Examiner(s): ASTORINO, MICHAEL C
• Application Number:
  US09/025,798
• Time in Patent Office: 859 Days
• Field of Search: 600/500-503, 600/300, 600/481-486, 128/897-899
• US Class Current: 600/503
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/6822 Neck

Abstract

A wrist alarm apparatus for use by a heart attack patient is provided that includes a maximum button and a minimum button laterally disposed on a housing part to respectively enter a maximum pulse rate limit and minimum pulse rate limit of a patient in a pre-set circuit for comparison with a patient'"'"'s detected pulse rate in a comparator. An alarm device will produce a warning alarm, if the patient'"'"'s pulse is equal to or higher than the maximum pulse rate limit or lower than the minimum pulse rate limit, to warn the patient or a nurse to take whatever actions are necessary.

Claims

1. A wrist alarm apparatus for a heart attack patient, comprising:

a housing having opposing front and rear sides, said housing being secured to a heart attack patient'"'"'s wrist by a fastening belt;

a heartbeat sensor disposed on said rear side of said housing in contiguous contact with the heart attack patient'"'"'s wrist for detecting the user'"'"'s heartbeats;

a display mounted to said front side of said housing for constantly indicating the heart attack patient'"'"'s detected heart rate; and

,

a control circuit disposed within said housing and having an input coupled to said heartbeat sensor and an output coupled to said display, said control circuit including (a) a circuit coupled to said heartbeat sensor for counting a number of heartbeats detected thereby, (b) a circuit coupled to said counting circuit for converting said heartbeat count to a detected heart rate, (c) a single pre-set circuit for storing both maximum and minimum heart rate limits therein, said single pre-set circuit being coupled to a pair of switches, one of said pair of switches enabling entry of said maximum heart rate limit and the other of said pair of switches enabling entry of said minimum heart rate limit, (d) a single comparator coupled to said single pre-set circuit for comparing said detected heart rate with both said maximum heart rate limit and said minimum heart rate limit, and (e) a single alarm having an input coupled to an output of said single comparator for indicating both a detected heart rate equal to or beyond one of said maximum heart rate limit and a detected heart rate equal to or beyond said minimum heart rate limit, said single alarm being adapted to generate an audible signal.