APPARATUS FOR DISTRIBUTING A SAMPLE OF BLOOD TO A PLURALITY OF CULTURES

• US 3,730,170 A
• Filed: 04/29/1971
• Issued: 05/01/1973
• Est. Priority Date: 04/29/1971
• Status: Expired due to Term

• Current Assignee: Thomas M. Michael
• Original Assignee: Thomas M. Michael
• Inventors: Michael, Thomas M.
• Primary Examiner(s): Howell, Kyle L.
• Application Number:
  US05/138,519
• Time in Patent Office: 733 Days
• Field of Search: 128/2F,2R,2G,2B,DIG.5,275,276,214R,DIG.12,DIG.13 137/609,610,612
• US Class Current: 600/575
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150236 Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
• CPC Class Codes: A61B 5/150244 Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
• CPC Class Codes: A61B 5/150251 Collection chamber divided into at least two compartments, e.g. for division of samples injection syringes having more than one chamber A61M5/19; syringes for injection of two or more media A61M5/2448, A61M5/284; sample preparation for further analysis A61B5/150755
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150496 Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150587 by friction fit
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: A61B 5/150755 Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61B 5/155 Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals devices loaded with multiple lancets simultaneously A61B5/15146

Abstract

An apparatus for distributing a sample of blood contained in a syringe or blood collecting tube comprises a distribution housing which is divided into at least two chambers, and which includes conduit means extending from each chamber to blood culture bottles. The needle of the blood collecting tube passes through puncturable sealing means formed in the distribution housing and the partition between the chambers of said housing to enable the selective distribution of blood to the respective blood culture bottles.

Claims

1. Apparatus for distributing a sample of blood to a plurality of cultures comprising:

a hollow distribution housing means having a plurality of apertures extending into the interior thereof;

a needle puncturable sealing means in one wall of said housing means;

conduit means respectively connected at one end to each of said apertures and terminating at their opposite ends in a needle for conducting a sample of blood from the housing means to the cultures;

holder means comprising a two-part cooperating holder, the first part being a cylindrical member secured to said distribution housing means at a wall opposite said needle puncturable sealing means, while the second part of said holder means comprises a hollow cylindrical member having an open end and an opposite closed end, said hollow cylindrical member having a slot opening in said open end and extending longitudinally toward said closed end, the closed end of said second part having a double-ended needle cannula extending therethrough such that one end of said needle cannula extends into said hollow cylindrical member and the other end of said needle cannula is exposed outwardly of said hollow cylindrical member;

said distribution housing means and the first part of said holder being received within the second part of said holder with the needle puncturable sealing means in a position to be punctured by said one end of the needle cannula; and

said conduit means extending outwardly of said holder means through said slot.

2. Apparatus as in claim 1 wherein the distribution housing means comprises a cylindrical member, said member being closed at one end while the other end is sealed by said needle puncturable sealing means, and which member is divided into two chambers by a further needle puncturable diaphragm, with said apertures disposed in the housing in communication with each of said chambers.

3. Apparatus as in claim 2 wherein the cylindrical member is made of plastic.

4. Apparatus as in claim 2 wherein the cylindrical housing is made of transparent plastic and includes concavely recessed wall portions to provide an enlarged view of the interior of the distribution housing means.

5. Apparatus as in claim 2 wherein the appertures and the associated conduit means are disposed on the same side of the cylindrical housing.

6. Apparatus for distributing a sample of blood to a plurality of cultures as in claim 1 wherein the cylindrical member of the second part of the housing means is slotted with a discontinuous slot adapted to accommodate the conduit means leading from the distribution housing means.

7. Apparatus for distributing a sample of blood to a plurality of cultures as in claim 1 wherein the distribution housing means includes a further needle puncturable diaphragm for dividing the interior thereof into two chambers, with the apertures being provided in the wall of the housing means to enable communicatIon between each of said chambers and the conduit means.