Device for Providing pipette tips

Patent metadata

Field	Value
Publication number	US-9433944-B2
Application number	US-201414250530-A
Country	US
Kind code	B2
Filing date	Apr 11, 2014
Priority date	Apr 12, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A device for providing pipette tips includes a plate-shaped carrier with a base surface, holes in the carrier perpendicular to the base surface, at least one vertically running cut-out in the outer sides of two opposing narrow sides of the carrier to accommodate two vertical guide ribs at a distance from each other, pipette tips in the holes, a bottom part with sidewalls that extend upwards from a standing surface, said sidewalls surrounding a rectangular seat for the carrier with the inserted pipette tips, wherein two opposing first sidewalls project further upward from the standing surface than to opposing second sidewalls, a supporting mechanism on the inner sides of at least two opposing sidewalls to support the carrier in a horizontal alignment at the bottom edges of narrow sides, and two vertical guide ribs engaging in the at least one cut-out when the carrier is placed on the supporting mechanism.

First claim

What is claimed is:

1. A device for providing pipette tips comprising:
a plate-shaped carrier ( 2 ) with a substantially rectangular base surface,
a plurality of holes ( 9 ) in the carrier ( 2 ) aligned perpendicular to the base surface,
at least one vertically running cut-out ( 21 ) in the outer sides of two opposing narrow sides ( 16 , 17 ) of the carrier ( 2 ) that are dimensioned to each at least partially accommodate two vertical guide ribs ( 47 ) at a distance from each other, each having a rib width of 2.5 mm to 4 mm and a rib height of 2.5 mm to 4 mm,
pipette tips ( 3 ) inserted in the holes ( 9 ),
a bottom part ( 4 ) with sidewalls ( 34 to 37 ) that extend upwards from a standing surface ( 39 ), said sidewalls surrounding a rectangular seat ( 41 ) for the carrier ( 2 ) with the inserted pipette tips ( 3 ), wherein two opposing first sidewalls ( 34 , 35 ) project further upward from the standing surface ( 39 ) than to opposing second sidewalls ( 35 , 36 ),
a supporting mechanism ( 43 , 44 ) on the inner sides of at least two opposing sidewalls that are constituted such that they support the carrier ( 2 ) in a horizontal alignment at the bottom edges ( 22 ) of narrow sides ( 16 , 17 ) below the top edges of all sidewalls ( 34 to 37 ),
the arrangement of the supporting mechanism ( 43 , 44 ) and of the guide ribs ( 47 ) is such that the engagement of the carrier ( 2 ) with the support mechanism takes place only when the guide ribs are introduced into at least one cutout ( 21 ) the at least one cut-out ( 21 ) in at least one narrow side of the carrier having two vertical grooves ( 27 , 28 ) disposed at a distance from each other, and the carrier rests on the top of the guide ribs ( 47 ) when the guide ribs ( 47 ) are in misalignment to the at least one cutout ( 21 ), and
wherein the two vertical guide ribs ( 47 ) at a distance from each other, engage in the at least one cut-out ( 21 ) in a narrow side ( 16 , 17 ) of the carrier ( 2 ) when the carrier ( 2 ) is placed on the supporting mechanism ( 43 , 44 ).

2. The device according to claim 1 , wherein each guide rib ( 47 ) is formed from a group with at least two parallel rib elements ( 48 , 49 ), wherein each rib element has a width of 0.50 mm to 1.5 mm, and the distance between the rib elements ( 48 , 49 ) of a group is 0.5 mm to 1.5 mm.

3. The device according to claim 1 , wherein the dimensions of a carrier ( 2 ) in the direction parallel to the second sidewalls ( 36 , 37 ) at the bottom edge ( 22 ) of the carrier ( 2 ) is less than the distance of 4 mm to 7 mm between the first sidewalls ( 34 , 35 ) at the top edge of the first sidewalls ( 34 , 35 ).

4. The device according to claim 1 , wherein the two vertical grooves ( 27 , 28 ) each have a groove width of 2.5 mm to 4.5 mm.

5. The device according to claim 1 , wherein the outer edge of the at least one cut-out ( 21 ) in at least one narrow side ( 16 , 17 ) of the carrier ( 2 ) is bordered by an outwardly projecting skirting ( 12 ) that runs along the bottom edge of the carrier ( 2 ).

6. The device according to claim 5 , wherein the outer edge of the at least one cut-out ( 21 ) in at least one narrow side ( 16 , 17 ) of the carrier ( 2 ) is bordered only by an outwardly projecting skirting ( 12 ) that runs along the bottom edge of the carrier ( 2 ).

7. The device according to claim 1 , wherein the inner edge of the at least one cut-out ( 21 ) is bordered in at least one narrow side ( 16 , 17 ) by a gripping tab ( 20 ) which is connected at the bottom to the bottom edge of the narrow side ( 16 , 17 ) of the carrier ( 2 ) and extends upward beyond the first sidewalls ( 34 , 35 ) at a distance from the narrow side ( 16 , 17 ).

8. The device according to claim 7 , wherein the at least one gripping tab ( 20 ) has a first locking mechanism ( 25 ) on its outer side above its connection ( 23 ) to the carrier ( 2 ), said first locking mechanism locking with second locking mechanism ( 50 ) on the inner side of the neighbouring first sidewall ( 34 , 35 ).

9. The device according to claim 8 , wherein the gripping tabs ( 20 ) are strip-shaped and have a first mechanism for locking ( 25 ) in the form of at least one outwardly projecting horizontal locking bead ( 25 ).

10. The device according to claim 1 , wherein the carrier ( 2 ) has a horizontal cover wall ( 7 ) with holes ( 9 ) arranged therein, and a peripheral apron ( 11 ) projecting downward from the side edges of the cover wall ( 7 ).

11. The device according to claim 10 , wherein the apron ( 11 ) has an outwardly projecting bottom section forming the skirting ( 12 ) outside of the cut-out ( 21 ).

12. The device according to claim 10 , wherein the edges of the holes ( 9 ) are connected to sleeves ( 10 ) that project from the bottom side of the cover wall ( 7 ) and into which the pipette tips ( 3 ) are inserted.

13. The device according to claim 1 , wherein the supporting mechanism ( 43 , 44 ) comprises vertical ribs projecting from the inner sides of the side walls.

14. The device according to claim 1 , wherein the supporting mechanism ( 43 , 44 ) has projections ( 45 ) that project at least partially from their inner edges with bevels ( 46 ) on the outer sides angled into the interior of the seat ( 41 ) that grip behind the inside of the apron ( 11 ) of the carrier ( 2 ).

15. The device according to claim 1 , wherein a protective cover ( 5 ) is placed on the top side of the carrier ( 2 ) and covers the pipette tips ( 3 ) inserted in the holes ( 9 ).

16. The device according to claim 1 , wherein the bottom part ( 4 ) has a pivotably mounted cover ( 6 ) that, when in closed position, covers the seat along with an inserted carrier ( 2 ) and if applicable a protective cover ( 5 ) mounted thereupon, and is pivotable into an open position in which the carrier ( 2 ) with the pipette tips ( 3 ) and if applicable the mounted protective cover ( 5 ) are removable from the bottom part ( 4 ), and insertable therein, and the pipette tips ( 3 ) are removable from the carrier ( 2 ).

17. The device according to claim 1 , wherein the carrier ( 2 ), and/or the bottom part ( 4 ), and/or the protective cover ( 5 ), and/or the cover ( 6 ) is manufactured from at least one plastic.

Assignees

• Eppendorf Ag

Inventors

• Blumentritt Michael
• Horstmann Frank
• Boeckmann Juergen

Classifications

• B01L9/543 Primary

  for disposable pipette tips, e.g. racks or cassettes · CPC title

• B01L2300/043

  Hinged closures · CPC title

• B01L2300/0858

  Side walls · CPC title

• B01L2200/087

  Ergonomic aspects · CPC title

• B01L2300/0829

  Multi-well plates; Microtitration plates · CPC title