INFRA-RED PROXIMITY SENSOR
Publication Date: 2010-Sep-10
The IP.com Prior Art Database
This disclosure relates generally to a person-support apparatus, such as, a hospital bed. More particularly, but not exclusively, one illustrative embodiment relates to an infrared based bed exit detection device present on the person-support apparatus. Alan S. Einhorn, Esq. 2806 Salem Drive Cinnaminson, NJ 08077 firstname.lastname@example.org 609-841-0266
INFRA-RED PROXIMITY SENSOR
This disclosure relates generally to a person-support apparatus, such as, a hospital bed. More particularly, but not exclusively, one illustrative embodiment relates to an infrared based bed exit detection device present on the person-support apparatus.
One of the ways that patients can be injured in a healthcare facility can be from falls, which can occur, for example, when an unattended patient tries to exit the bed or during unintended egress. In many cases it may not be feasible to provide round the clock supervision of every patient. Various automated systems have been developed for supervision of patients, but there is still room for improvement. Thus a need persists for further contributions in this area of technology.
The disclosure provides a bed exit detection device involving infrared proximity sensors. The proximity sensors can be present on the siderails of the person-support apparatus. The proximity sensors can alert the caregiver when a patient moves within a preset distance with respect to the siderail. This feature can also give feedback on how close the patient is to the siderail, which can give the caregiver an earlier warning about the unintended egress of the patient. The proximity sensors can also alert the caregiver when a patient comes into contact with the siderail, which can help reduce the possibility of pressure ulcers (bed sores) occurring as a result of the contact.
Figure 1 shows a perspective view of a person-support apparatus 10 configured with an infrared proximity sensor 12. The infrared proximity sensor 12 can be present on a siderail 14. The infrared proximity sensor 12 can be used to detect the position of the person supported on the person-support apparatus 10. The infrared proximity sensor 12 can detect the movement of an occupant when the occupant tries to move out of the person-support apparatus 10 or there is movement of person during sleep which can result in an unintended egress. The sensors 12 can generate a signal indicative of the distance of the occupant from the sensors 12, which can be sent to the nursing station or patient monitoring system present at a distant location. It should be appreciated that the signal can be in the form of audio or video signal. According to one embodiment of the disclosure the person-support apparatus 10 can also include more then one infrared
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proximity sensors 12 to determine the location of the occupant relative to the person- support apparatus 10. It should be appreciated that in such a case the infrared proximity sensors 12 can also be present on a footboard FB or a headboard HB along with the siderail 14.
Figure 2 shows the schematic...