Method and apparatus for processing substances in a single container

• US 20080260593A1
• Filed: 01/02/2008
• Published: 10/23/2008
• Est. Priority Date: 03/22/2000
• Status: Abandoned Application

• Current Assignee: Dewalch Technologies Incorporated
• Original Assignee: Dewalch Technologies Incorporated
• Inventors: DeWalch, Norman Binz
• Application Number:
  US12/006,571
• Publication Number:
  US 20080260593A1
• Time in Patent Office: Days
• US Class Current: 422/101
• CPC Class Codes: B01L 2300/0681 Filter
• CPC Class Codes: B01L 2300/0851 Bottom walls
• CPC Class Codes: B01L 2400/0683 mechanically breaking a wall or membrane within a channel or chamber
• CPC Class Codes: B01L 3/50 Containers for the purpose of retaining a material to be analysed, e.g. test tubes devices for taking samples of blood A61B5/15
• CPC Class Codes: B01L 3/5021 Test tubes specially adapted for centrifugation purposes centrifuges B04B5/04
• CPC Class Codes: B01L 3/50255 Multi-well filtration

Abstract

In one example embodiment of the present invention, a vessel having an open end and a closed end is provided. The vessel further includes, but is not limited to, a filtering substance. The filtering means is disposed generally toward the closed end of the vessel. Subsequently the closed end of the tube or vessel can be pierced so that the liquid and waste products can be removed from the vessel through the pierced aperture. In another example embodiment, a method for processing at least one substance in a vessel capable of retaining at least one substance is provided. The method includes, but is not limited to, introducing the at least one substance into the vessel. The method further comprises processing the at least one substance. The method further includes, but is not limited to, creating an aperture in the vessel; and removing at least one substance through the aperture.

Claims

1. A tube for preparing fluid samples, the tube comprising:

a hollow, cylindrical body having an open end and a closed end; and

a filtering means for selectively retaining a desired substance from a sample fluid, the filtering means being disposed in the body proximate to the closed end of the tube.

72. A vessel for processing substances, the vessel comprising:

a hollow body comprising at least one closed end;

the at least one closed end being pierceable to allow fluid to flow when pierced; and

a retaining substance for selectively retaining a desired substance from the fluid.

73. The vessel of claim 72, wherein the retaining substance further comprises filter.

74. The vessel of claim 72, wherein the retaining substance further comprises filter paper.

75. The vessel of claim 72, wherein the retaining substance further comprises fibers.

76. The vessel of claim 72, wherein the retaining substance further comprises glass.

77. The vessel of claim 72, wherein the retaining substance further comprises solid phase extraction media.

78. The vessel of claim 74, wherein the filter paper is formed into a cup.

79. The vessel of claim 72, wherein the retaining substance further comprise beads.

80. The vessel of claim 72, wherein the retaining substance further comprises silica.

81. The vessel of claim 72, wherein the retaining substance further comprises a gel.

82. The vessel of claim 72, wherein the retaining substance further comprises surface coating.

83. The vessel of claim 72, further comprising a gap interposed between the retaining substance and the closed end of the vessel.

84. The vessel of claim 83, wherein the gap is maintained by supporting means for supporting the retaining substance.

85. The vessel of claim 84, wherein the supporting means comprises one or more linear projections disposed radially from the center of the closed end of the vessel.

86. The vessel of claim 84, wherein the supporting means comprises one or more arcuate projections disposed circularly around the center of the closed end of the vessel.

87. The vessel of claim 72, further comprising a recess disposed on the inside of the closed end of the vessel.

88. The vessel of claim 87, wherein the recess is located generally in the center of the closed end of the vessel.

89. The vessel of claim 88, wherein the recess comprises one or more grooves, the grooves passing generally through the center of the closed end of the vessel.