MXPA04007341A

MXPA04007341A - Pipette tip container.

Info

Publication number: MXPA04007341A
Application number: MXPA04007341A
Authority: MX
Inventors: Andrzej Jankowski
Original assignee: Pz Htl Spolka Akcyjna
Priority date: 2002-01-29
Filing date: 2003-01-21
Publication date: 2005-06-08
Also published as: WO2003064271A2; WO2003064271A3; JP3920853B2; RU2004126227A; US20050150808A1; EP1469945A2; WO2003064271B1; CA2471574A1; CN1318143C; KR20040105707A; RU2296620C2; KR100705107B1; CN1642651A; JP2005515942A; PL351910A1

Abstract

Pipette tip container comprises a base for setting a tray (19) with tips (21) and a cover being a tray feeder (2), wherein two opposite elastic side walls of the feeder (2) have on their inner side wedge-shaped projections (31, 32) for the tray (19) with tips (21).

Description

Published: Date of publication of the athendcd claiins and statemcnt: with intemational search repon 22 April 2004 wilh amended claitns and staiemem For Two-leuer codes and otlier abbreviations. referred to the "GI- (88) beats ol publication of the international scarcli rcport: anee Notes on Lodes and Abbreviations" appmrirrg-itt lS Marc 2004 no of p.ach regular issue of the PCT Gazette.

CONTAINER FOR PIPETA TIP BACKGROUND OF THE INVENTION FIELD OF THE INVENTION This invention relates to the pipette tip container, in particular to a container structure for the transfer and storage of pipette tips.

RELATED TECHNIQUE The patent of E.U.A. No. 3,937,322 discloses a packet of disposable pipette tips in which the tips are suspended on trays and the trays are stacked with the tips one on top of the other. A stack of said trays is held on a support and placed inside a box. The patent of E.U.A. No. 5,441, 702 discloses a filler pack for pipette tip racks, which comprises a release means coupled with a locking means to lower the tray with tips down the holding means towards an empty pipette tip rack. . Still further, the release means comprises elements for holding the locking means comprising a support plate coupled with the cover to separate the support plate and the tipped tray from the holders to fill the racks with empty tips when is placed in the package In the exemplary embodiment of the invention referred to in this patent description, a pack of tips is described which comprises tips with horizontal plate support and a manually tightened carrier comprising a cover and spring-releasable fastener elements. to releasably attach the tray to the cover. The cover constitutes a hollow container made of lightweight and thin elastic plastic material and includes a horizontal elastic cover and side elements with spring-releasable fastening elements for the tray, which has the shape of the letter "S". The user of the package carries it over the top of an empty rack. Subsequently, the user presses down the upper part of the elastic cover to release the spring-loaded fastening elements and detaches the tray from the container and places the tips in the rack. Additionally, the US patent. No. 5,366,088 discloses a stackable pipette tip rack that is formed to lock itself on another pipette tip rack of the same design and hold pipette tips in an upward position. In the described design, in side walls near the upper surface of the rack for the tips, holes are provided to operate with projections of the next rack placed on this rack. In particular, the side walls comprise a lockable mechanism comprising a lever part or articulated element. The articulated element is fixed to the wall by two hinge elements that form an element that rotates about an axis that passes through the hinges, while a projection is arranged along the lower part of the articulated element.

BRIEF DESCRIPTION OF THE INVENTION According to the present invention, a container for pipette tips comprises a base for fixing a tray with tips and a cover which is the tray feeder, wherein the two opposite elastic side walls of the feeder have wedge-shaped projections in its inner sides for the tip tray. In the pipette tip container according to the invention, the opposite side walls have elastic supports with wedge-shaped projections. In the pipette tip container according to the invention, wedge-shaped projections bump against side walls of the base. In the pipette tip container according to the invention, the base has corner guides protruding above its upper surface on which the tip trays are superimposed.

In the pipette tip container according to the invention, the feeder has protruding corners, whose lower edges are below the tips placed therein. In the pipette tip holder according to the invention, the feeder has elastic links between the side walls and the elastic supports. In the pipette tip container according to the invention, the opposite base side walls have notches for the elastic links of the feeder. In the pipette tip holder according to the invention, the tray has rings around the holes on the upper edge of which short tips are attached. In the pipette tip holder according to the invention, the upper part of the feeder has an inner stabilizer ring surrounding the upper portions of long tips, whose external diameter dimension is close to the spacing of the holes in the tray. In the pipette tip container according to the invention, the base has on its bottom part an additional bottom base to accommodate the lower ends of long tips. An advantage of the solution according to the present invention is the fact that the invention allows, with the use of the feeder, to take and carry trays with tips on the base of the container and then close the container with the feeder which simultaneously is the container cover BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and form part of the specification, illustrate one embodiment of the present invention and, together with the description, help explain the principles of the invention. In the drawings: Figure 1 shows a general view of the container according to the invention; Figure 2 shows a container consisting of a base and a feeder; Figure 3 shows the base with a tray and pipette tips seen from above and from the front; Figure 4 shows the tray feeder viewed from the bottom and front; figure 5 shows the feeder of figure 4 with a tray and tips; Figure 6 shows the vertical section of the feeder with the tray and the tips of Figure 5; Figure 7 shows the base with a tray and short tips seen from the top and front; Figure 8 shows the vertical section of the feeder with the tray and tips CQrtas_deJaJtguraZ - Figure 9 shows the base with a tray and pipette tips seen from above and the front; Figure 10 shows a vertical section of the feeder with the tray and the long tips of Figure 9; and Figure 11 shows a series of trays stacked with pipette tips.

DETAILED DESCRIPTION OF THE INVENTION Reference will now be made in detail to the preferred embodiment of the invention, example of which is illustrated with the accompanying drawings. The container shown in Figure 1 includes a base (1) and a cover superposed thereon which constitutes the feeder (2) for trays for pipette tips. The base (1) has, as shown in figure 2, rigid side walls (3, 4, 5, 6) as well as corner guides (7, 8, 9, 10) projecting above its upper surface, on which the trays with tips are placed. The base (1) has on its upper portion fins (11) with stabilizing pins (12). Still further, two opposite side walls (3, 5) of the base (1) have notches (13, 14). In turn, the feeder (2) has arranged corners (15, 16, 17, 18), whose lower edges are placed below tips placed therein. In the base (1) 7 a tray (19) with a plurality of holes (20) for pipette tips (21) is placed, as shown in Figure 3 Figure 4 illustrates feeder (2) which is constructed from a flat upper portion and preferably rigid (22) and four side walls (23, 24, 25, 26), while two opposite side walls (23, 25) have elastic supports (27, 28) in their middle portion. The elastic supports (27, 28) are joined to the side walls (23, 25) by elastic links (29, 30), and have wedge-shaped projections (31, 32) on the inner side of the feeder (2) . When the feeder (2) is placed on the tray (19) with tips (21) and the feeder (2) is pressed down, the tray (19) with tips (21) is nested in the feeder (2) so stable so that it is supported on wedge-shaped projections (31, 32), while the upper portions of the tips (21) abut against the upper part (22) of the feeder (2), as shown in a view of the figure (5) and in a section of figure 6. Subsequently the tray (19) can be placed and fixed - with the use of the same feeder (2) - in another base shown in figure 2. To achieve this, the feeder (2) with the tray (19) and pipette tips (21) are fixed to the base (1) by sliding corners (15, 16, 17,18) of the feeder (2) on corner guides (7, 8) , 9, 10) of the base (1). When the feeder (2) is pressed downwards, the wedge-shaped projections (31, 32), which run against side walls (3, 5), lower laterally together with the elastic supports (27, 28) and release the tray (19) with the tips (21). The tray (19) is fixed in a stable manner to the base (1) by the use of stabilizing pins (12) in the base (1) and the corresponding stabilizing holes in the tray (19), as shown in connection with Figure 3. In this way the tray (19) with tips (21) is prepared for analytical tests, while it is possible to place the feeder (2) on the base () and close the container with tips (21). In case of using short tips (33), whose flange length is shorter than the distance between the tray (19) and the upper portion (22) of the feeder (2) compared to the tips (21) shown in FIG. Figure 6, to stabilize its position in the feeder (2) when bumping against the upper portion (22) of the feeder (2), the tray (19) has rings (34) around the holes, on which are fixed the short tips of upper edge (33), as shown in a view of figure 7 and in a section of figure 8. In turn, for long tips (35), whose outer diameter dimension of flange is closest to the spacing of the holes in the tray (19), to stabilize its position in the feeder (2), the upper portion (22) of the feeder (2) has an internal stabilizer ring, preferably rectangular (36) which surrounds all the upper portions of long tips (35). Still further, the height of a side wall of the feeder (2) is adjusted to the length of the long-pointed flange (35), while the base (1) has at its lower portion an additional base (37) for housing bottoms of long tips (35), as shown in a view of Figure 9 and in a section of JjguraJjQ. The pipette tips (21) are supplied in a bulk container which contains, as shown in Figure 1 1, a stack of trays (19) with holes (20) placed one on top of the other, where the tips are attached. (twenty-one ). From this stack by using the feeder (2) the rear trays (19) with tips (21) are taken, starting with the tray that is higher (19), and then carried on the base (1).

Claims

10 NOVELTY OF THE INVENTION CLAIMS 1 - . 1 - A container for pipette tips comprising a base (1) for fixing a tray (19) with tips (21) and a cover that is a tray feeder (2), wherein the feeder (2) has in the opposite side walls (23, 24) elastic supports (27, 28) and the elastic supports (27, 28) have on their inner side with wedge-shaped projections (31, 32) and the tray (19) with tips (21). ) are supported on the upper edges of the wedge-shaped projections (31, 32), wherein the feeder (2) comprises elastic links (29, 30) between side walls (23, 24) and the elastic supports (27, 28) and the base (1) comprises in opposite side walls (3, 5) notches (13, 14) for the elastic links (29, 30) of the feeder (2), wherein the lower edges of the projections in the form of wedge (31, 32) bump against the opposite side walls (3, 5) of the base (1). 2. The container according to claim 1, further characterized in that the feeder (2) has descending corners descending (15, 16, 17, 18), which cooperate with corner guides (7, 8, 9, 10 ) of this base (1) projecting above the upper surface of the base (1). eleven 3 - . 3 - The container according to claim 1, further characterized by the tray (? 9) has cen- rims- (34 | around the holes, where the inner diameters of the rings (34) are equal to diameters of the holes and where the short tips (33) are fixed on the upper edges of the rings (34) 4. - The container according to claim 1, further characterized in that the upper portion (22) of the feeder ( 2) has an internal stabilizing ring (33) surrounding the upper portions of the long tips (35), whose outer diameter dimension is close to the spacing of the holes in the tray (19) 5. - The container in accordance with claim 4, further characterized in that the base (1) has in its lower portion an additional bottom base (37) for receiving lower portions of long points (35).