Cassette and applicator for biological and chemical sample collection

a biological and chemical sample and liquid technology, applied in the field of liquid biological sample collection units, can solve the problems of unadapted blood sampling apparatus for collecting and transferring blood, present health hazards for laboratory staff, and inability to transfer blood to a more sophisticated analyzer for additional testing, etc., to achieve convenient movement of biological samples, avoid contamination, and improve unnecessary pain

Inactive Publication Date: 2001-11-01
NAGAOKA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0023] The cassette according to the present invention is preferably evacuated as is demonstrated by FIG. 2. The volume of the cassette cavity 4 may be adjusted to accommodate the assay or series of assays to be performed. A vacuum may be created during assembly of the cassette, or it may be created by means provided after assembly but before a biological sample is obtained. After the needle 1 is inserted into a subject's blood vessel 13, a stopper 5 is pressed against the subject's skin 12 as shown in FIG. 3 or against an applicator 11 as shown in FIG. 3. At such time, a septum or membrane 7 inside the sampl

Problems solved by technology

This represents additional work, may lead to contamination or mixup of the samples, and may present health hazards for laboratory staff.
This device lacks a means to transfer blood to a more sophisticated analyzer for additional testing.
Such a blood sampling apparatus

Method used

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  • Cassette and applicator for biological and chemical sample collection
  • Cassette and applicator for biological and chemical sample collection
  • Cassette and applicator for biological and chemical sample collection

Examples

Experimental program
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Embodiment Construction

[0039] The following provides more detailed description of some of the preferred cassettes and applicators according to the present invention.

Cassette 1

[0040] One preferred sample cassette according to the present invention is depicted in FIGS. 7A-7C. The sample cassette has one needle 1 and two septums 20 and 21. The needle is permanently fixed. The septums may be of any suitable size or shape and may be composed of any appropriate material. In fact, the septums may be just thinner areas of the wall of the sample cassette and therefore be composed of the very same material as other areas of the wall. Preferably, the sample cassette may be compressed while it is inserted into a blood vessel as FIG. 8 depicts. Thus, the sample cassette is preferably made of an elastic plastic material such as polyethylene, polypropylene or polyvinylchoride. Also preferably, the sample cassette is substantially transparent or semitransparent so that filling with a biological sample can be visually con...

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Abstract

A biological sample collection unit for a centrifugal analyzer disk is disclosed. This unit consists of a flat cassette and an applicator that holds and controls the cassette during sample collection and during placement of the cassette into the analyzer disk.

Description

[0001] This application is a continuation of application Ser. No. 09 / 139,213 for "Cassette and Applicator for Biological and Chemical Sample Collection" filed on Aug. 24, 1998 and issued as U.S. Pat. No. 6,196,979 on Mar. 6, 2001 which application hereby incorporated herein by reference.[0002] 1. Field of the Invention[0003] The present invention relates to a liquid biological sample collection unit that is suitable for using with a centrifugal analyzer disk. More particularly, the sample collection unit consists of a relatively flat cassette and optionally an applicator that holds and controls the cassette during sample collection and is used to place the cassette into the analyzer.[0004] 2. General Background and State of the Art[0005] Biological samples are primarily taken into evacuated glass or plastic tubes, such as Vacutainer.TM. tubes (Becton Dickinson) from a subject. Normally, a double ended needle is first inserted into a subject's vein, and the other end of the needle is...

Claims

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Application Information

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IPC IPC(8): A61B5/15A61B10/00G01N33/543G01N35/00
CPCA61B10/0045G01N33/54373G01N35/00069A61B5/1405A61B5/15003A61B5/150099A61B5/157A61B5/150259A61B5/150389A61B5/150473A61B5/150755A61B5/153A61B5/154A61B5/150175
Inventor VIRTANEN, JORMA A.
Owner NAGAOKA
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