Pipette tip washing device

• US 10,631,707 B2
• Filed: 03/21/2019
• Issued: 04/28/2020
• Est. Priority Date: 04/30/2013
• Status: Active Grant

• Current Assignee: Grenova, Inc.
• Original Assignee: Grenova, Inc.
• Inventors: Safavi, Ali, Anderson, Taylor
• Primary Examiner(s): Markoff, Alexander
• Application Number:
  US16/361,059
• Publication Number:
  US 20190216290A1
• Time in Patent Office: 404 Days
• CPC Class Codes: A47L 15/4242 by using ultraviolet generators
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: B01L 13/02 for receptacle or instruments
• CPC Class Codes: B01L 2400/0487 fluid pressure, pneumatics
• CPC Class Codes: B01L 2400/0605 check valves
• CPC Class Codes: B01L 3/0275 Interchangeable or disposable dispensing tips
• CPC Class Codes: B01L 9/543 for disposable pipette tips, e.g. racks or cassettes
• CPC Class Codes: B08B 3/02 Cleaning by the force of jets or sprays
• CPC Class Codes: B08B 7/0057 by ultraviolet radiation
• CPC Class Codes: B08B 9/00 Cleaning hollow articles by methods or apparatus specially adapted thereto B08B6/00 takes precedence
• CPC Class Codes: G01N 35/1004 Cleaning sample transfer devices

Abstract

A method for washing laboratory consumables comprises receiving, in a drawer compartment of a washing device, a rack holding a plurality of laboratory consumables, the drawer compartment selectively movable out and in between, respectively, an open and a closed position, the receiving occurring when the drawer compartment is in its open position; moving the drawer compartment to its closed position; moving a manifold dispenser downward from a loading/unloading position to a washing position; the manifold dispenser in a top compartment of the washing device that is positioned above the drawer compartment when the drawer compartment is in its closed position, the manifold dispenser selectively movable up and down between, respectively its loading/unloading position and its washing position; and directing one or more fluid solutions to contact the plurality of laboratory consumables out of a plurality of liquid outputs of the manifold dispenser.

Claims

1. A method for washing laboratory consumables, the method comprising:

receiving, in a drawer compartment of a washing device, a rack holding a plurality of laboratory consumables, the drawer compartment selectively movable out and in between, respectively, an open and a closed position, the receiving occurring when the drawer compartment is in its open position;

moving the drawer compartment to its closed position;

moving a manifold dispenser downward from a loading/unloading position to a washing position;

the manifold dispenser in a top compartment of the washing device that is positioned above the drawer compartment when the drawer compartment is in its closed position, the manifold dispenser selectively movable up and down between, respectively its loading/unloading position and its washing position; and

directing one or more fluid solutions to contact the plurality of laboratory consumables, the directing comprising introducing the one or more liquid solutions into a liquid input and out of a plurality of liquid outputs of the manifold dispenser.

2. The method of claim 1, wherein a number of liquid outputs is equal to a number of laboratory consumables such that each one of the liquid outputs directs fluid at a corresponding one of the laboratory consumables.

3. The method of claim 1, wherein the manifold dispenser comprises a flexible mat affixed to a bottom surface of the manifold dispenser, the mat having a plurality of through-holes defined therein, each of the plurality of through-holes aligned with a corresponding one of the plurality of liquid outputs such that the fluid directed by the fluid outputs passes through a corresponding one of the plurality of through-holes.

4. The method of claim 1, wherein the drawer compartment further comprises a platform for supporting the rack holding the plurality of laboratory consumables;

and

wherein the method further comprises agitating the platform.

5. The method of claim 4, wherein the platform is agitated by one or more cylinders of the washing device.

6. The method of claim 5, wherein the one or more cylinders are positioned either below or above the platform when the drawer compartment is in its closed position.

7. The method of claim 1, further comprising:

moving the plurality of laboratory consumables relative to the UV curtain or moving the UV curtain relative to the plurality of laboratory consumables; and

directing ultra-violet (UV) light from a UV curtain onto the plurality of laboratory consumables as the plurality of laboratory consumables moves relative to the UV curtain or as the UV curtain moves relative to the plurality of laboratory consumables.

8. The method of claim 1, further comprising exposing at least an interior portion of the each of the plurality of laboratory consumables to UV light via a plurality of fiber optic channels coupled to a UV light source and extending through the manifold dispenser at each of the plurality of liquid outputs.

9. The method of claim 1, further comprising exposing the plurality of laboratory consumables to light in an ultraviolet (UV) range, the exposing comprising illuminating a light source to direct the light in the UV range through one or more of a UV transparent floor or one or more walls of a washing chamber of the drawer compartment.

10. The method of claim 1, further comprising exposing the plurality of laboratory consumables to sound in an ultrasonic range, the exposing comprising energizing one or more transducers to direct the sound in the ultrasonic range into a washing chamber of the drawer compartment.