Physical information monitor system having means for determining reference range for abnormality determination of the monitored information

• US 5,752,913 A
• Filed: 09/17/1996
• Issued: 05/19/1998
• Est. Priority Date: 09/17/1996
• Status: Expired due to Fees

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Colin Corporation (Fukuda Denshi Company Limited)
• Inventors: Oka, Tohru
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US08/714,810
• Time in Patent Office: 609 Days
• Field of Search: 128/630, 128/668, 128/672, 128/900, 128/920, 128/923, 600/300, 600/481, 600/485
• US Class Current: 600/300
• 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 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/02116 of pulse wave amplitude A61B5/02225 takes precedence
• CPC Class Codes: A61B 5/0225 the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
• CPC Class Codes: A61B 5/335 using integrated circuit memory devices

Abstract

The physical information monitoring system includes a physical information obtaining device for successfully obtaining present physical information of a living subject, an identification code input device for determining an identification code which identifies the living subject, a physical information memory device for storing previous physical information which was previously obtained from the living subject prior to operation of physical information obtaining device, and a reference range determining device for determining a reference range used to determine whether the presently obtained physical information for the living subject identified by the identification code is abnormal. The reference range determining device determines the reference range on the basis of the previous physical information stored in the memory device. The system further includes an abnormality indicating device for generating an abnormality signal which indicates that the present physical information is abnormal, if the present physical information is outside of the reference range.

Claims

1. A physical information monitor system, comprising:

physical information obtaining means for successfully obtaining present physical information of a living subject;

identification code input means for entering an identification code which identifies said living subject said identification code input means comprising a card reader;

physical information memory means for storing previous physical information which is previously obtained from said living subject prior to operation of said physical information obtaining means, said physical information memory means comprising a card-like recording medium which has a memory area;

reference range determining means for determining a reference range used to determine whether said present physical information obtained by said physical information obtaining means for the living subject identified by said identification code is abnormal or not, said reference range determining means determining said reference range on the basis of said previous physical information stored in said physical information memory means;

abnormality indicating means for generating an abnormality signal which indicates that said present physical information obtained by said physical information obtaining means is abnormal, if said present physical information obtained by said physical information obtaining means is outside said reference range; and

wherein said physical information memory means is constituted by a portion of said memory area of said card-like recording medium, and said card reader reads said identification code stored in said card-like recording medium and said previous physical information previously obtained prior to said operation of said physical information obtaining means.

2. A physical information monitor system according to claim 1, wherein said physical information memory means comprises a data memory device which stores previous physical information of a plurality of living subjects obtained prior to the operation of said physical information obtaining means, and said reference range determining means receives from said data memory device said previous physical information of one of said plurality of living subjects which is identified by said identification code which is stored in said card-like recording medium and which is read by said card reader.

3. A physical information monitor system according to claim 1, wherein said physical information obtaining means comprises:

pulse wave detecting means for detecting a pulse wave produced from an artery vessel of said living subject in synchronism with heartbeat of said subject;

blood pressure obtaining means including an inflatable cuff, for obtaining a blood pressure of said living subject;

relationship determining means for determining a relationship between a magnitude of said pulse wave detected by said pulse wave detecting means and said blood pressure obtained by said blood pressure obtaining means; and

blood pressure determining means for determining a monitored systolic blood pressure (MBP_SYS) and a monitored diastolic blood pressure (MBP_DIA) based on said magnitude of said pulse wave and said relationship determined by said determining means.

4. A physical information monitor system according to claim 1, wherein said present and previous information comprises blood pressure of said living subject.

5. A physical information monitor system according to claim 1, wherein said previous physical information stored in said physical information memory means comprises an average of a plurality of previously obtained physical information values.