# US 11,058,782 B2 · Apparatus, method, system and software product for hand sanitisation

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- Number: US 11,058,782 B2
- Document ID: US11058782B2
- Status: Granted
- Kind: B2
- Application number: 16/354,083
- Filed: 2019-03-14
- Published: 2019-07-11
- Granted: 2021-07-13
- Earliest claimed: 2015-01-16
- Assignees: Scan Unic Aps
- Applicants: Scan Unie ApS
- Inventors: Henrik Rasmus Andersen; Jan Arlemark; Finn Jegård; Kenneth Francke; Jan Borgström
- Web page: https://patentgrep.com/patent/US11058782B2

## CPC

- A61L 2/18: Liquid substances
- A61L 2/183: Ozone dissolved in a liquid
- A61L 2/22: Phase substances, e.g. smokes or aerosols
- A61L 2/24: Apparatus using programmed or automatic operation
- B08B 3/08: the liquid having chemical or dissolving effect
- A61L 2103/05: Living organisms or biological materials
- A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
- A61L 2202/17: Combination with washing or cleaning means
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

## Abstract

A method of implementing and using an apparatus (1a,1b,13,25) to achieve hand sanitisation by application of ozone. The apparatus has a disinfecting chamber (3,3′,110) with at least one port (2) adapted for insertion of at least one hand into the disinfecting chamber (3,110). A sensor (4) detects entry and/or exit of the hand (26) into the disinfecting chamber (3,110). An ozone water output (7,130) of an ozone water supply (8) is arranged to deliver ozone water to the at least one hand (26) when inserted into the disinfecting chamber (3,110). Control means (6) times start and stop of a discharge of ozone water from the at least one ozone water output (7,130) into the disinfecting chamber (3,110) when the at least one sensor (4) detects entry of the at least one hand (26) into the disinfecting chamber (3,110).

## Claims

### Claim 1

A method of hand sanitization comprising the steps of:
providing an apparatus for sanitization of at least one hand by application of ozone water, the apparatus comprising,
a disinfecting chamber having
at least one port adapted for insertion of at least one hand into the disinfecting chamber,
at least one sensor adapted for detection of an entry and/or exit of the at least one hand into the disinfecting chamber, and
at least one ozone water output of the disinfecting chamber comprising a first plurality of ozone water delivery openings arranged in a first pattern selected to deliver and spread a continuous stream of ozone water over the palm of the at least one hand inside the disinfection chamber, and a second plurality of ozone water delivery openings arranged in a second pattern selected to deliver and spread a continuous stream of ozone water over the back of the inserted at least one hand,
producing ozone water on demand by means of an ozone water supply that comprises an electrolytic ozone generator to obtain electrolytically produced ozone dissolved in water,
sensing the introduction of the at least one hand through the at least one port, and starting a discharge of ozone water from the at least one ozone water output into the disinfecting chamber and delivering a continuous stream of ozone water to the palm and back of the at least one hand when said at least one hand is inserted into the disinfecting chamber,
sanitizing the at least one hand with the discharge of ozone water from the at least one ozone water output, and
stopping the discharge of ozone water from the at least one ozone water output in response to an input from a control means.

### Claim 2 (depends on 1)

A method as claimed in claim 1 further comprising a step of recognising at least one user whose at least one hand is going to be sanitized.

### Claim 3 (depends on 2)

A method as claimed in claim 2 wherein the step of recognising includes identification of a fingerprint, an eye scan, a badge or other security device comprising a machine readable pattern, a barcode, or a code input.

### Claim 4 (depends on 1)

A method as claimed in claim 1 further comprising a step of timing at least one sanitizing step to a set length of sanitizing time.

### Claim 5 (depends on 4)

A method as claimed in claim 4 further comprising a step of storing data related to an end of a timing of at least one sanitizing step and/or a timing of a sanitization cycle and/or the at least one user.

### Claim 6 (depends on 1)

A method as claimed in claim 1 further comprising a step of drying the at least one hand by means of a towel after washing.

### Claim 7 (depends on 1)

A method as claimed in claim 1 further comprising a step of alerting a user to an end of a timing of at least one sanitizing step and/or a timing of a sanitization cycle.

### Claim 8 (depends on 1)

A method as claimed in claim 1 further comprising a step of washing the at least one hand with soap before sanitization with ozone water.

### Claim 9 (depends on 1)

A method as claimed in claim 1 further comprising a step of storing data of at least one sanitization protocol arranged for the at least one user.

### Claim 10 (depends on 1)

A method as claimed in claim 1 further comprising a step of customizing the at least one sanitization protocol to the individual user or to a group of users.

### Claim 11 (depends on 1)

A method as claimed in claim 1 wherein the electrolytic ozone generator is connected to a water supply, the water supply being selected from a continuous water supply or a batch water supply.

### Claim 12 (depends on 1)

A method as claimed in claim 1 further comprising a step of adjusting the temperature of the ozone water to below 30° C., or between 20° C. and 25° C.

### Claim 13 (depends on 1)

A method as claimed in claim 1 further comprising draining used ozone water from the disinfecting chamber.

### Claim 14 (depends on 1)

A method as claimed in claim 1 further comprising a step of detecting and alerting failures of the apparatus.

### Claim 15 (depends on 1)

A method as claimed in claim 1, wherein the ozone water is discharged into the disinfecting chamber at an ozone concentration between 2 to 50 PPM, or between 3 and 30 PPM, or between 5 and 20 PPM, or between 10 and 15 PPM, or around 12 PPM.

### Claim 16 (depends on 1)

A method as claimed in claim 1 further comprising a step of signaling information to the at least one user while the apparatus is in operation and/or when at least one sanitization is complete.

### Claim 17 (depends on 1)

A method as claimed in claim 1 further comprising a step of adjusting the flow direction of the ozone water delivery openings.

### Claim 18 (depends on 17)

A method as claimed in claim 17 wherein the step of adjusting the flow direction of the ozone water delivery openings is selected to continuously change the flow direction, preferably according to a given controlled flow regime.

### Claim 19 (depends on 17)

A method as claimed in claim 17 wherein the step of adjusting the flow direction of the ozone water varies the discharge angle of at least one of the first and second plurality of ozone water delivery openings separately, or of a manifold as a combined unit.

### Claim 20 (depends on 1)

A method as claimed in claim 1 wherein the ozone water is not admixed with air.

### Claim 21 (depends on 1)

A method as claimed in claim 1 wherein the method further sanitizes at least one forearm, and at least one elbow, or combinations thereof.

### Claim 22 (depends on 1)

A method as claimed in claim 1 wherein produced ozone water is delivered to the disinfecting chamber without any additional pumping means other than the pressure of a water supply system.

### Claim 23 (depends on 1)

A method as claimed in claim 1 wherein produced ozone water is delivered to the disinfecting chamber due to the pressure of a water supply system.

### Claim 24 (depends on 1)

A method as claimed in claim 1 wherein the step of sanitizing the at least one hand with a discharge of ozone water from the at least one ozone water output is for between 5 and 90 seconds.

### Claim 25 (depends on 1)

A method as claimed in claim 1 wherein a determined percentage of bacterial kill achieved after the sanitization is >1.0 Log (90%) or >2.0 Log (99,0%) or >3 Log (99,9%).

### Claim 26 (depends on 1)

A method as claimed in claim 1 wherein the electrolytic ozone generator utilizes a supply of de-mineralized water, de-ionized water or filtered water, or combination of these.

### Claim 27 (depends on 1)

A method as claimed in claim 1 wherein the ozone water delivery openings gently distribute and apply ozone water around the inserted at least one hand at a gentle ozone water pressure of between 0.5 and 3 bar.

### Claim 28 (depends on 11)

A method as claimed in claim 11 wherein the water supply is tap water.

### Claim 29 (depends on 1)

A method as claimed in claim 1 wherein produced ozone water is delivered to the disinfecting chamber purely due to the pressure of the water supply system.