# US 12,213,637 B2 · Pipette tip washing device

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- Number: US 12,213,637 B2
- Document ID: US12213637B2
- Status: Granted
- Kind: B2
- Application number: 18/454,661
- Filed: 2023-08-23
- Published: 2023-12-07
- Granted: 2025-02-04
- Earliest claimed: 2013-04-30
- Assignees: Grenova, Inc.
- Applicants: Grenova, Inc.
- Inventors: Ali Safavi
- Web page: https://patentgrep.com/patent/US12213637B2

## CPC

- A47L 15/4242: {by using ultraviolet generators}
- A61L 2/10: Ultraviolet [UV] radiation
- B01L 3/0275: {Interchangeable or disposable dispensing tips}
- B01L 9/543: {for disposable pipette tips, e.g. racks or cassettes}
- B01L 13/02: {for receptacle or instruments}
- B08B 3/02: Cleaning by the force of jets or sprays
- B08B 7/0057: {by ultraviolet radiation}
- B08B 9/00: Cleaning hollow articles by methods or apparatus specially adapted thereto
- G01N 35/1004: {Cleaning sample transfer devices}
- B01L 2400/0487: fluid pressure, pneumatics
- B01L 2400/0605: check valves
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- 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)
- B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A washing device comprises a manifold dispenser comprising at least one liquid input and a plurality of liquid outputs that operably direct fluid to contact a plurality of laboratory consumables held by a rack in the washing device. A number of the plurality of liquid outputs being at least equal to a number of the plurality of laboratory consumables such that each liquid output of the plurality of liquid outputs operably directs the liquid at a corresponding laboratory consumable of the plurality of laboratory consumables.

## Claims

### Claim 1

A washing device comprising:
an outer shell in which a top compartment and a middle compartment are positioned, the middle compartment is positioned beneath the top compartment,
the top compartment comprises an inner wall providing support and mounting surfaces for a manifold dispenser, the manifold dispenser comprises at least one liquid input and a plurality of liquid outputs that operably direct fluid to contact a plurality of laboratory consumables held by a rack in the washing device, a number of the plurality of liquid outputs being such that each liquid output of the plurality of liquid outputs operably directs the fluid at a corresponding laboratory consumable of the plurality of laboratory consumables, and the manifold dispenser is capable of being raised and lowered vertically relative to the rack to alternate between loading or unloading, and washing, positions for the plurality of laboratory consumables,
the middle compartment comprises an inner wall providing support and mounting surfaces, the middle compartment also comprises a washing chamber receiving and retaining fluid output by the plurality of liquid outputs of the manifold dispensers, the washing chamber is positioned within the inner wall of the middle compartment, and the middle compartment also comprises a compartment positioned within the inner wall of the middle compartment, the compartment being moveable between a loading/unloading position and the washing position, the compartment includes a top surface with openings for receiving racks holding the plurality of laboratory consumables.

### Claim 2 (depends on 1)

The washing device of claim 1, wherein the rack comprises a tip rack and the plurality of laboratory consumables comprise a plurality of pipette tips.

### Claim 3 (depends on 2)

The washing device of claim 2, wherein the tip rack is configured to hold 24, 48, 96, 384, or 1536 pipette tips.

### Claim 4 (depends on 1)

The washing device of claim 1, further comprising at least one transducer capable of outputting sound in an ultrasonic range in at least the second compartment.

### Claim 5 (depends on 1)

The washing device of claim 1, further comprising at least one mechanical cylinder that operably agitates the rack.