US 6,897,781 B2 · Electronic patient monitor and white noise source

Abstract

According to a preferred embodiment, there is provided an electronic patient monitor for use in reducing the risk of decubitus ulcers. The monitor utilizes a separate sensor which senses the position of the patient in the bed or chair for purposes of determining when the patient moves. Additionally, the monitor broadcasts masking noise through its own, or through a remote, speaker, thereby enabling the patient to rest more comfortably in a noisy institutional environment. If the patient does not move on his or her own accord within a predetermined turn interval, the masking sound broadcast will be terminated which will gently encourage the patient to move. An alarm may additionally be sounded to notify the caregiver that the patient needs to be manually turned to reduce the risk of decubitus ulcers.

Claims17

Dependent claims

An electronic patient monitor for use with a patient sensor, said patient sensor at least for detecting a presence or an absence of a patient, comprising:

(a) a microprocessor in electronic communication with said patient sensor,
(b) program memory in electronic communication with said microprocessor, said program memory containing a plurality of computer instructions therein for use by said microprocessor, said computer instructions containing at least at plurality of instructions for
(b1) monitoring said patient sensor and initiating an alarm if the sensor indicates the absence of the patient, and,
(b2) generating at least one masking sound if the sensor indicates the presence of the patient;
(c) a speaker in electronic communication with said microprocessor, said speaker at least for broadcasting said at least one masking sound.

2 more elements

An system for reducing the risk of an occurrence of decubitus ulcers in a patient at rest on a support surface, wherein is provided a predetermined turn interval, comprising:

(a) a patient sensor, said patient sensor positionable to be proximate to the patient, said patient sensor at least for sensing at least approximately an orientation of the patient on the support surface and for generating at least one signal representative of said orientation of the patient on the support surface;
and,
(b) a patient monitor positionable to be in electronic communication with said patient sensor, said patient monitor comprising:
(b1) a microprocessor in electronic communication with said patient sensor,
(b2) a speaker in electronic communication with said microprocessor, said speaker positionable to be proximate to the patient;
(b3) program memory in electronic communication with said microprocessor, said program memory containing a plurality of computer instructions therein for use by said microprocessor, said computer instructions containing at least a plurality of instructions for
(i) monitoring said signal representative of said orientation of the patient on the support surface to determine an initial position of the patient,
(ii) generating a masking sound while monitoring said signal representative of said orientation of the patient,
(iii) transmitting said masking sound to said speaker,
(iv) broadcasting said masking sound within hearing range of the patient;
(v) determining a time since said initial patient position was determined,
(vi) performing steps (ii) through (v) at least until either said time since said initial patient position was determined exceeds said predetermined turn interval, or until the patient changes position from said initial position which ever occurs first, and,
if said time since said initial patient position was determined exceeds said predetermined turn interval, ceasing generation of said masking sound and generating an alarm after a predetermined time delay, and,
if the patient changes position from said initial position, redetermining said initial position and continuing to monitor the patient.

11 more elements

A method for reducing the risk of an occurrence of decubitus ulcers in a patient at rest on a support surface, comprising the steps of:

(a) selecting a turn interval;
(b) determining an initial position of the patient;
(c) generating a masking sound;
(d) broadcasting said masking sound within a hearing range of the patient, thereby enhancing the patient's rest by making inaudible at least a portion of the ambient sounds otherwise audible by the patient;
(e) continuing to broadcast said masking sound within the hearing range of the patient while continuously monitoring the patient's current position;
(f) determining a time since said initial position was determined;
(g) performing steps (c) through (f) at least until said time since said initial patient position was determined exceeds said predetermined turn interval;
and,
(h) if said current position of the patient is not substantially different from said initial condition, sounding an alarm to notify a caregiver that the patient needs to be turned and controlling the generation of said masking sound by either ceasing or continuing broadcast of said masking sound.

6 more elements

A method of reducing the risk of an occurrence of decubitus ulcers in a patient, wherein is provided a patient sensor positionable to be proximate to the patient, said patient sensor at least for determining an approximate position of the patient, and wherein is provided a predetermined turn interval, comprising the steps of:

(a) determining an initial position of the patient from said patient sensor;
(b) beginning to broadcast a masking sound within hearing range of the patient;
(c) continuing to broadcast said masking sound while monitoring the patient's position;
(d) determining a current position of the patient using said patient sensor and determining an elapsed time since said initial position of the patient was determined;
(e) comparing said initial position of the patient with said current position of the patient to determine if the patient has moved, and,
(i) if the patient has moved from said initial position, continuing to broadcast said masking sound while continuing to monitor the patient's position,
(ii) if the patient has not moved from said initial position and said elapsed time is less than said predetermined turn interval, continuing to broadcast said masking sound while continuing to monitor the patient's position, and,
(iii) if the patient has not moved from said initial position and said elapsed time is greater than said predetermined turn interval, sounding an alarm to indicate the patient needs to be turned and controlling the generation of said masking sound by either ceasing or continuing broadcast of said masking sound.

5 more elements

Dependencies are inferred from the claim text.

Electronic patient monitor and white noise source

Life of this patent

Electronic patient monitor and white noise source

Life of this patent

Abstract

Claims17