Blood collection device

• US 4,850,964 A
• Filed: 10/13/1987
• Issued: 07/25/1989
• Est. Priority Date: 10/13/1987
• Status: Expired due to Term

• Current Assignee: Bard Autotransfusion Acquisition Corporation (Becton, Dickinson & Co)
• Original Assignee: Robert F. Cotter
• Inventors: Cotter, Robert F.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Costantino, Mario
• Application Number:
  US07/107,938
• Time in Patent Office: 651 Days
• Field of Search: 604/4, 604/5, 604/35, 604/48, 604/49, 604/51, 604/317, 604/318, 604/319, 604/322, 604/403, 604/406, 604/902, 128/DIG. 3, 128/760
• US Class Current: 604/6.09
• CPC Class Codes: A61M 1/0281 Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing
• CPC Class Codes: A61M 1/3627 Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
• CPC Class Codes: A61M 1/63 with means for emptying the suction container, e.g. by interrupting suction
• CPC Class Codes: A61M 1/79 Filters for solid matter specially adapted for dental use A61C17/065
• CPC Class Codes: A61M 2205/7545 for solid matter, e.g. microaggregates

Abstract

Blood collection system using a container having an inlet tube inside it and having a filter material coupled to the tube inside the container to collect debris contained within blood being fed into the container.

Claims

1. A system for collecting blood and then delivery of same comprising a plastic container which holds its shape and has two opposed ends spaced apart from each other a predetermined distance, said container defining a first opening in one end and a second opening in the other end, a tube having an open end for delivering blood into said container and extending through said first opening, said open end of said tube positioned away from the inner surface of the container, said tube having a length thereof extending a distance in said container towards said second opening more than halfway the distance between said first and second openings, a mesh filter material inside said container positioned about said tube length and coupled to said tube along its length at a distance more than half the length of the tube from the open end of the tube, said filter surrounding at least the open end of the tube, said filter material being of sufficient area and of a mesh material to permit blood to flow from said tube into said container and to collect solid debris carried with said blood and store same between said mesh inside said container and said length of tube from the point where said mesh is coupled to said tube, means coupled to said first end for supporting the tube in said first opening, and a tube coupled to said second opening to permit withdrawal of said blood from said container free from collected debris.

2. The system according to claim 1, in which there is provided a third tube coupled to the container and opening into said container for providing a vacuum to draw blood into said container and to provide gas under pressure to force blood from said container through said second tube.

3. A blood collection and readministration system compressing a container having four sides and first and second ends positioned apart a predetermined distance, said first end defining a first opening and said second end defining a second opening, a length of tube having an open end positioned in said first opening and extending a distance in said container towards said second opening more than half the distance between said first and second ends, a mesh filter positioned about and surrounding at least the open end of the tube and coupled about the tube inside said container at a distance more than three quarters the length of the tube from the open end so that debris can be collected between said tube and mesh filter, means coupled first about said first opening for supporting said tube in said container, and a second means coupled about said second opening for withdrawing blood from said container, said tube open end being spaced away from the interior side walls so that the mesh can surround the tube.

4. The system of claim 3 in which said second means includes a tube with an open end which extends into the container towards said first opening.