WO2014046645A1 - Système d'exécution de lavage des mains - Google Patents

Système d'exécution de lavage des mains Download PDF

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Publication number
WO2014046645A1
WO2014046645A1 PCT/US2012/055941 US2012055941W WO2014046645A1 WO 2014046645 A1 WO2014046645 A1 WO 2014046645A1 US 2012055941 W US2012055941 W US 2012055941W WO 2014046645 A1 WO2014046645 A1 WO 2014046645A1
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WO
WIPO (PCT)
Prior art keywords
rfid
rfsu
employee
optionally
hand washing
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Application number
PCT/US2012/055941
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English (en)
Inventor
Yordan Gineff TANEFF
Original Assignee
Taneff Yordan Gineff
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Filing date
Publication date
Application filed by Taneff Yordan Gineff filed Critical Taneff Yordan Gineff
Priority to PCT/US2012/055941 priority Critical patent/WO2014046645A1/fr
Publication of WO2014046645A1 publication Critical patent/WO2014046645A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • G08B21/245—Reminder of hygiene compliance policies, e.g. of washing hands

Definitions

  • This invention is in the field of healthcare, food processing, foodservice, and other industries and is related to maintaining proper hygiene at any work environment. It is an electronic handwashing monitoring and enforcing system that will be installed at restroom areas as well as all other areas requiring proper hand washing in the healthcare, food processing, foodservice, and other facilities, such as restaurants, hospitals, hotels, and others.
  • the system uses RFID(s) (Radio Frequency Identification Unit) communicating with other electronic units through the use of RF waves in order to achieve its main objective, i.e. proper hygiene.
  • a main database including every individual's specific data in regard to his/her compliance with hand- washing requirements is maintained in a central computer for the management to review.
  • Infections germs, viruses, such as Hepatitis A, and other infections are spread through ingesting food or drinks handled by a person whose hands are contaminated. So, employees in the food service industry or medical industry, who either do not wash their hands or improperly wash their hands after using rest room facilities or handling unsterilized objects, are the main agents of transfer of that and other types of infections to patients and to the general population. According to Center for Disease Control, hand washing is the single most important means of preventing the spread of infection and disease. Nationally, it is estimated that food borne illness kills 5,000 people a year and 5 million more become ill.
  • washing hands correctly will greatly reduce chances of spreading germs and can reduce food borne illnesses, which add to health care costs in excess of $4 billion a year in the U.S. All of this could be prevented by having the infected person properly wash his or her hands.
  • Information on the subject matter from different governmental sources, food, health care industries, etc., are too numerous to present in a patent application and could be obtained on the Internet or in a library.
  • the instant invention comprises an electronic hand washing monitoring system for use in restaurants, hospitals and other locations where hand cleansing is necessary in order to avoid the spread of germs, bacteria and infections.
  • the instant invention comprises an electronic system in the field of healthcare, food processing, food service, and other industries where clean hands are a necessity. It is an electronic hand- washing monitoring system that may be installed in restrooms, sensitive hospital areas and other areas requiring proper hand washing practices.
  • the instant invention is an RFID (Radio Frequency
  • Identification unit(s) based system comprising sensors, and electronic units that receive, and transmit RF signals. Said signals are processed by the microcontroller of said RFID, in order to determine whether an employee has actually washed his/her hands. Washing habits are also processed by the instant invention to achieve the main objective of advancing proper hygiene practices.
  • a main database including every individual's specific data in regard to his/her compliance with hand- washing requirements is maintained in a central computer for the management and governmental authorities to review and analyze.
  • the instant invention comprises a system that monitors all hand washing activities, including dispensation of the cleansing substance, and the duration of hand rubbing and hand rinsing, in order to determine the compliance or non-compliance with hand washing requirements.
  • the instant invention achieves its objectives by using RFID (radiofrequency identification unit) attached to each employee.
  • the instant invention includes a computer database that rearranges the data in a format that is convenient to review and analyze by the management.
  • Another major difference between the teachings in prior art and instant invention is that the monitoring of hand washing is being achieved through the use of short range RF transmissions, such as with a radius of transmission from two to four feet.
  • the instant invention provides a quantitatively improved analysis that is used in preventing the spread of disease to patients in hospitals, employees, and the general population. Prior to the instant invention proper hygiene at the work place was left up to the conscience of the employees. The instant invention gives management a tool to supervise proper hygiene practices in accordance with required protocol.
  • One of the main objectives achieved by the instant invention is the monitoring of employees to determine if they properly washed their hands after using a rest room facility or touching an unsterilized object prior to performing their duties.
  • One of the main advantages of the instant invention is that it provides the ability of both management of any establishment and overseeing governmental authorities to monitor employees' proper hygiene at work remotely just by checking the data entered into a computer data base. That will improve the monitoring capability of a company management and government employees alike, both quantitatively and
  • Fig. 1 is an illustrative view of the main units, RFID (radiofrequency identification unit),
  • RFDU radiofrequency door unit
  • RFSU radiofrequency sanitization unit
  • Fig. 2 is a diagrammatic view of the electronic components of the RFID (radiofrequency
  • RFID radiofrequency patient unit
  • Fig. 3 is a diagrammatic view of the electronic components of the RFDU (radiofrequency door unit) for the alternative and preferred embodiments of the instant invention.
  • Fig. 4 is a diagrammatic view of the electronic components of the RFSU-1 (radiofrequency sanitization unit-1) for the alternative and preferred embodiments of the instant invention.
  • Fig. 5 is a diagrammatic view of the peripheral components of RFSU-1 (radiofrequency
  • Fig. 6 is a diagrammatic view of the electronic components RFSU-2 (radiofrequency sanitization unit-2) for the alternative and preferred embodiments of the instant invention.
  • Fig. 7 is a diagrammatic view of the electronic components of RFCU-1 (radiofrequency
  • Fig. 8 is a diagrammatic view of the electronic components of RFCU-2 (radiofrequency
  • Fig. 9 is a diagram illustrating the theory of operation the alternative embodiment of the instant invention.
  • the alternative embodiment monitors proper hand washing in a restroom and consists of three main units and one optional unit (see Fig. 1, 2, 3, 4, 5, and 6):
  • RFID radiofrequency identification unit (10) - see Fig. 2].
  • the main building blocks of RFID are:
  • RFDU speaker (32)
  • RFDU LCD liquefied crystal display
  • RFSU-1 radiofrequency sanitization unit 1 - see Fig. 4 and 5.
  • the main buildin blocks of RFSU-1 are:
  • RFSU-1 could, optionally, as described below in the Preferred embodiment #2, be equipped with a Distance Ranger which, in combination with the Motion Detector (56), could monitor the specific hand rubbing techniques required by the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO).
  • RFSU-2 radiofrequency sanitization unit 2 - see fig. 6) (optional).
  • the main building blocks of RFSU-2 are:
  • m. RFSU-2 could, optionally, as described below in the Preferred embodiment #2, be equipped with a Distance Ranger which, in combination with the Motion Detector (56), could monitor the specific hand rubbing techniques required by the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO).
  • CDC Centers for Disease Control and Prevention
  • WHO World Health Organization
  • the preferred embodiment #1 monitors proper hand washing in an entire business entity.
  • the preferred embodiment #1 consists of six main units. The first four units are identical to the four units described in the Alternative embodiment above, i.e. RFID (see item 1 above), RFDU (see item 2 above), RFSU-1 (see item 3 above), RFSU-2 (see item 4 above), and the last two units are listed below:
  • RFCU-1 radiofrequency contamination unit 1 - see Fig. 7
  • the main building blocks of RFCU-1 are:
  • RFCU-2 radiofrequency contamination unit 2 - see Fig. 8
  • the main building blocks of RFCU-2 are: a. PCB of RFCU-2 (radiofrequency contamination unit 2) (20)
  • the main units of the Preferred Embodiment #2, as well as the main building blocks of the units of the Preferred Embodiment #2, are the same as the ones of the Preferred Embodiment #1 (see Figures l,2,3,4,5,6,7,and 8), except that:
  • Embodiment #2
  • RFBU radiofrequency bed unit
  • RFPU radiofrequency patient unit
  • Preferred Embodiment #2 utilizes the Motion Sensor (56), attached to RFSU-1, and 2, for detecting the presence of hands, and a Distance Ranger, attached to RFSU-1, and 2, which detects the distance between said ranger and the hands, for the purpose of monitoring the specific hand rubbing techniques required by the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO). Operation
  • the Alternative embodiment is an electronic hand-washing monitoring system that will be installed at restroom areas in food and healthcare facilities, such as restaurants and hospitals, as well as any other facility, which requires monitoring of hand washing after using a restroom.
  • the system uses RF (radiofrequency) identification technology to establish communication between its three main units as well as the optional unit.
  • the system also uses embedded microcontrollers to achieve its control functionality.
  • the main database including the individual's specific data is maintained in a central computer and gathered from the various monitoring systems within the building via RF data transfer technology. Data is communicated to the users via backlit LCD display and voice prompts.
  • the system of this embodiment comprises the following main units as depicted in Fig. 1:
  • RFID radiofrequency identification unit
  • RFDU radiofrequency door unit
  • This unit is mounted at the entrance of each restroom facility within a facility, such as a restaurant, or a hospital, or others. Its primary function is to detect the employee at each entry and exit to and from the restroom. It visually and audibly alerts the employee at the exit if he/she did not get engaged with the hand washing enforcement process at the faucet, RFSU.
  • RFSU-1 radiofrequency sanitization unit 1 (14). This unit is embedded within the faucet assembly and is capable of identifying the employee when he/she approaches the faucet to wash his/her hands, of engaging said employee in the hand washing process, of detecting if said employee successfully completed the hand washing process, of visually and audibly alerting said employee of his/her pass/fail status, and of stamping the RFID of said employee with said pass/fail status.
  • Monitoring of the hand washing process consists of monitoring the dispensation of cleaning substance, the duration of hand rubbing, and the duration of hand rinsing through the use RFSU-1 motion sensor (54) and RFSU-1 motion detector (56).
  • RFSU-2 radiofrequency sanitization unit 2
  • RFSU-2 uses hand cleansing substances that do not require running water for rinsing them off, like alcohol based cleansers. All other functions are identical to RFSU-1. In most, but not all, instances the use of RFSU-2 is allowable instead of the use of RFSU-1.
  • Monitoring of the hand cleaning process consists of monitoring the dispensation of cleaning substance, and the duration of hand rubbing, through the use RFSU-2 motion sensor (94) and RFSU-2 motion detector (96).
  • the RFID radiofrequency identification unit
  • the RFID is the employee badge which must be worn all the time during working hours. It emits detectable RF waves within a radius of two feet or so and has the size of a name tag or a credit card.
  • the RFID holds the employee name and his/her history of all visits to the restrooms.
  • the RFID consists of the following components as shown in Fig. 2:
  • RFID database (28) to store the hygiene history of the employee.
  • RFID tri-color status light (26), flashing orange (in the rest room), alternating green/red (engaged with RFSU), flashing green (passed), and flashing red (failed).
  • the functionality and capability of the RFID a. Communicates with the RFDU at every entry to get time- stamped.
  • the RFID badge itself is the communication link between the RFSU (sanitization, or wash station, unit) and the RFDU (door unit). This approach is important so that we keep all three RF transceivers, RFID, RFDU, and RFSU at a minimum transmission power of detectable RF waves within a radius of two feet or so. This way we avoid various systems from interfering with each other if they are too close, such as two bathrooms on two different floors but the same vertical position.
  • the RFDU (radiofrequency door unit) (12) is the main control device, which is mounted inside the wall close to the restroom entrance door frame in an enclosure of the size of an electric box. It emits detectable RF waves within a radius of two feet or so. It is normally off and gets turned on by the normally on entry/exit sensors (35), which allows the employee's RFID to
  • the RFDU keeps the hygiene history file for all employees who have engaged it until the time this history file is uploaded to the company's main computer(s) for the management to review.
  • the RFDU comprises the following components as shown in Fig. 3:
  • RFDU database (42) to store the hygiene history of all employees, who enter the
  • RFDU radiofrequency circuit (38) with a transceiver and an internal antenna to
  • RFDU upload link (44) to upload the data to the company's main computer. This could be of any possible form, USB, Ethernet, Phone, or wireless.
  • RFDU LCD liquefied crystal display
  • RFDU speaker (32). A speaker for added audible messaging. 7. RFDU tri-color status light (34), flashing orange (some employees in the rest room), flashing green (exiting employee passed), and flashing red (exiting employee failed).
  • RFDU battery (40). AC-powered with an automatic charger and a backup battery with one-month life.
  • RFDU entry/exit sensors (35). RFDU entry/exit sensors (35) are constantly on. Turns the RFDU on any time an employee enters or exits the restroom, so that RFID and RFDU can exchange information about compliance or noncompliance with the hand washing requirements.
  • b. Communicates with the RFID at each exit to get the pass/fail status of the employee and immediately generate message of either appreciation for compliance or warning otherwise.
  • c. Keeps a real-time log of all entries, exits, and hygiene history of all employees, who have engaged it.
  • d. Uploads history files to the company's main computers.
  • the RFSU-1 radiofrequency sanitization unit 1
  • the RFSU-1 is the unit the employee engages to wash his/her hands. It is normally off and gets turned on by the RFSU-1 's motion sensor (54), which is normally on, any time an employee approaches it and puts his hand under the faucet for cleansing substance dispensation. It emits detectable RF waves within a two feet radius or so and comprises a faucet assembly, which houses the water spout (60), the cleansing substance spout (58), the motion sensor (54), and motion detector (56), and the following components (see Fig. 4 and 5):
  • RFSU-1 database (68). Used to temporary store the monitored washing activities.
  • RFSU-1 radiofrequency circuit 64. Transceiver and internal antenna to communicate with the RFID.
  • RFSU-1 interface 70. Interface circuit to control external peripherals like the cleaning substance dispenser (76), the water valve (78), the motion detector (56), and any future input/output devices.
  • RFSU-1 motion sensor (54). RFSU-l's motion sensor (54) is normally on. It has the dual function of turning the RFSU-1 on any time an employee puts his/her hand under the faucet for dispensation of cleansing substance as well as the function of triggering dispensation of cleansing substance. 9. RFSU-1 motion detector (56). RFSU-1 motion detector monitors the hand rubbing motion during the hand washing process. It continues the hand rubbing countdown while hand rubbing motion is detected, and stops the countdown if no motion is detected. If no motion is detected for more than 10 seconds at a time, RFSU-1 resets.
  • the RFSU-1 interrogates the RFID every second until the employee completes the hand washing sequence.
  • the RFSU-1 welcomes the employee by name (LCD & speaker) and walks him/her
  • the washing sequence which is dispensing soap, rubbing hands while providing trickling water flow for achieving proper cleaning substance consistency, and rinsing under full water flow, all of them for programmable durations displayed for the employee on countdown timers.
  • c. Communicates with the RFID at the end of washing process to stamp it with pass/fail status.
  • e. Generates the appropriate messages, either appreciating compliance or warning
  • RFSU-1 One of the most vital aspects accomplished by the RFSU-1 is the enforcement part, which requires that the system monitors the actual hand washing sequence. Hands have to be rubbed for a period of 20 seconds after dispensation of cleansing substance.
  • the RFSU-2 (radiofrequency sanitization unit 2) (16) is an optional unit with very similar functionally to the RFSU-1 (see Fig. 6).
  • the main difference between the two units is that the RFSU-2 uses hand cleansing substances that do not require running water for rinsing them off, like alcohol based cleansers. All other functions are identical to RFSU-1. In most, but not all, instances the use of RFSU-2 is allowable instead of the use of RFSU-1.
  • Preferred embodiment #1 monitors proper hand washing in an entire business entity. Examples of business entities in need of monitoring hand washing would be hospitals, food processing plants, hotels, restaurants, and many others.
  • the preferred embodiment #1 consists of six main units. The first four units are identical to the four units described in the Alternative embodiment above, i.e. RFID (see description above), RFDU (see description above), RFSU-1 (see description above), and RFSU-2 (see description above).
  • RFID in the Primary embodiment #1 retains all the hand washing information of the person who wears it throughout his/her working day and then it transfers it to the RFDU on the way out of work.
  • the last two units of the preferred embodiment #1 are RFCU-1, and RFCU-2:
  • RFCU-1 radiofrequency contamination unit-1 - see Fig. 7
  • RFCU-1 warns the person wearing the RFID that he/she must wash his/her hands within 10 seconds before engaging it and within 10 seconds after disengaging it. It allows more than one person to engage it at the same time.
  • RFCU-1 must be attachedproximal to any person or object that must be dealt with clean hands.
  • a perfect example of the use of RFCU-1 will be its attachment proximal to a patient in order to ensure that said patient is being engaged by a person who has washed his/her hands within the previous 10 seconds. It emits detectable RF waves within a radius of two feet or so and comprises the following components as shown on Fig. 7:
  • RFCU-1 radiofrequency circuit (106). Utilizes RF transceiver and internal antenna to communicate with the RFID.
  • RFCU-1 battery (108). AC-powered with or without battery charger as needed.
  • RFCU-1 battery charger (110). Battery charger could be used if attached to an object.
  • RFCU-1 data base (112). Used to store hygiene information, on a temporary bases, of all employees, who engage it.
  • the functionality and capability of the RFCU-1 a. Detects the employee's RFID as soon as the RFID is within the sphere of engagement of RFCU-1.
  • RFCU-1 could be used together with entry/exit sensors (35) of the alternative
  • RFCU-1 would normally be off.
  • the entry part of the entry/exit sensors (35) will not turn it on, so that the employees entering the restroom could enter undetected and unregistered.
  • the exit part of the entry/exit sensors (35) will turn the RFCU 1 when the employee is exiting the restroom and, if the employee has not washed his/her hands within the previous 10 seconds as required, a default will be registered on his/her behalf.
  • RFCU-2 radiofrequency contamination unit-2 - see Fig. 8).
  • RFCU-2 emits detectable RF waves within a radius of two feet or so.
  • RFCU-2 allows anybody to engage it, but warns the person wearing the RFID to use an RFSU to wash his/her hands within 15 seconds after disengaging it. It allows more than one person to engage it at the same time if the contaminated objects, like urinals, are in close proximity. Examples of using RFCU-2s could be toilet bowls, urinals, contaminated equipment, etc.
  • RFCU-2 comprises the following components, as shown on Fig. 8:
  • RFCU-2 radiofrequency circuit (116). Utilizes RF transceiver and internal antenna to communicate with RFID.
  • RFCU-2 battery (118). AC-powered with automatic charger and a battery of one month life.
  • RFCU-2 data base (122) Used to store hygiene information on a temporary basis of all employees, who engage it.
  • RFCU-2 The functionality and capacity of RFCU-2: a. Detects the employee's RFID as soon as the employee moves into the sphere of coverage of RFCU-2.
  • the preferred embodiment #2 of the SaniFaucet Hand Washing Enforcement System is almost identical to the preferred embodiment #1, described above. The main differences are described below:
  • RFCU-1 of the preferred embodiment #1 is being replaced in the preferred embodiment #2 by two units - RFPU (Radiofrequency Patient Unit), attached to any patient in healthcare facilities, and RFBU (Radiofrequency Bed Unit), attached proximal to a patient, and moved with the patient while the patient is away from his/her bed.
  • the RFPU and the RFBU have to be in close proximity to each other, and in constant communication with each other at all times in order to provide uninterrupted protection to the patient from being engaged by a person with unclean hands.
  • the RFBU acts like RFCU-1 of preferred embodiment #1, and detects any person coming in close proximity to the patient, assuring that said person has washed his/her hands within the previous 10 seconds.
  • the RFBU is in constant communication with RFPU in order to update RFPU's status instantaneously as it changes (see item 3. below).
  • the RFPU reports its own status (see item 3. below) to the computer database, just like any RFID does. It determines its own status by being in constant communication with the RFBU.
  • RFID statuses in the preferred embodiment #2 range from being clean while its bearer is exiting a restroom, to being freshly clean while outside a restroom, being with normal status, being engaged with a patient, being engaged with an RFCU-2, and being in default.
  • RFPU Radio Resource Unit
  • the hand rubbing process in the preferred embodiment #1 is being monitored by a motion detector (56), which detects only if there is motion or not, while the hand rubbing process in the preferred embodiment #2 is being monitored by the motion sensor (56) for detecting the presence of hands, and a Distance Ranger which detects the distance between the ranger and the hands.
  • the distance is sampled many times, say a 100 times per second. Then the data is plugged into a histogram and analyzed for repeated patterns. The data is compared dynamically to presorted various patterns of hand- washing histograms. If the actual pattern is within an acceptable tolerance of the stored pattern, then the hand rubbing, as well as the handwashing, is considered good.
  • the stored patterns will be based on a poster of required hand rubbing techniques, published by the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO), which could be found on the Internet at the following link: http://www.who.int/gpsc/5mav How To HandRob Poster.pdf
  • Washing Enforcement System (aka Golden Faucet Hand Washing Enforcement System) would be by picturing a mobile beacon(s) [RFID(s) - radiofrequency identification unit(s)], emitting RF (radiofrequency) waves of two feet in radius or so, moving among stationary beacons [RFCUs - radiofrequency contamination units; RFSUs - radiofrequency sanitization units; RFDU(s) - radiofrequency door unit(s)], emitting RF waves of two feet in radius or so, and by entering said stationary beacons' spheres of engagement, either by chance or design, and communicating with them said mobile beacon(s) makes a determination when hand washing is necessary.
  • said mobile beacon(s) transfers said hand washing information at the end of the working day to the RFDU (radio frequency door unit) on the way out of work.
  • the information received by the RFDU(s) from all RFIDs could be transferred real time, or through an USB unit, or through any other available technical means to a central data base for the management to review.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne un système de contrôle de lavage des mains qui surveille et communique électroniquement la fréquence de lavage des mains et les procédures pour la gestion au moyen d'un système informatique.
PCT/US2012/055941 2012-09-18 2012-09-18 Système d'exécution de lavage des mains WO2014046645A1 (fr)

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US9824569B2 (en) 2011-01-28 2017-11-21 Ecolab Usa Inc. Wireless communication for dispenser beacons
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US10529219B2 (en) 2017-11-10 2020-01-07 Ecolab Usa Inc. Hand hygiene compliance monitoring
USRE48951E1 (en) 2015-08-05 2022-03-01 Ecolab Usa Inc. Hand hygiene compliance monitoring
US11272815B2 (en) 2017-03-07 2022-03-15 Ecolab Usa Inc. Monitoring modules for hand hygiene dispensers
US11284333B2 (en) 2018-12-20 2022-03-22 Ecolab Usa Inc. Adaptive route, bi-directional network communication

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