FR2740218A1 - Blood sample preparation device for blood cell analysis - Google Patents
Blood sample preparation device for blood cell analysis Download PDFInfo
- Publication number
- FR2740218A1 FR2740218A1 FR9512596A FR9512596A FR2740218A1 FR 2740218 A1 FR2740218 A1 FR 2740218A1 FR 9512596 A FR9512596 A FR 9512596A FR 9512596 A FR9512596 A FR 9512596A FR 2740218 A1 FR2740218 A1 FR 2740218A1
- Authority
- FR
- France
- Prior art keywords
- blade
- housing
- blood
- drop
- glass slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/2813—Producing thin layers of samples on a substrate, e.g. smearing, spinning-on
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
DESCRIPTIF
SYSTEME MANUEL D'AIDE A L'EXECUnON
D'UN FROTIIS SANGUIN
Cette invention concerne le domaine médical et paramédical.DESCRIPTION
MANUAL IMPLEMENTATION SYSTEM
OF A BLOOD FROTIIS
This invention relates to the medical and paramedical field.
L'extension du G.B.E.A. ( Guide de Bonne Exécution des Analyses ) nous amène à rechercher une solution de qualité dans tous les domaines y compris celui, si délicat, de la cytologie - qui est l'étude des cellules du sang dont la qualité du résultat dépend directement de celui de l'étalement examiné. The extension of the G.B.E.A. (Guide to Good Execution of Analyzes) leads us to seek a quality solution in all areas including that, so delicate, of cytology - which is the study of blood cells whose quality of result depends directly on that of the spread examined.
Traditionnellement, un frottis sanguin se fait à la main, sur une lame de verre à l'aide d'une lamelle de verre. Cette manipulation exige cependant une certaine expérience. Cette invention:
1/ permet à tout le personnel de garde ou des services d'urgences voire même des prélèvements faits à domicile, et qui n'ont pas l'habitude d'exécuter des frottis sanguins de façon routinière, d'effectuer des frottis interprétables.Traditionally, a blood smear is done by hand, on a glass slide using a glass slide. However, this manipulation requires some experience. This invention:
1 / allows all on-call staff or emergency services or even samples taken at home, and who are not used to performing routine blood smears, to perform interpretable smears.
Il faut comprendre, que sur un étalement mal fait, les plus gros éléments dits 'figurés' sont entrainés en queue de frottis, ce qui fausse le décompte de la population des globules blancs. Il peut s'en suivre:
- une mauvaise interprétation des résultats de laboratoire et par là meme du diagnostic.It should be understood that on a poorly made spread, the largest so-called 'figured' elements are dragged into the smear tail, which distorts the count of the population of white blood cells. It can follow:
- misinterpretation of laboratory results and thus of the diagnosis.
2/ aboutit à un étalement interprétable. Cette notion est importante quand on sait qu'un diagnostic ou qu'un suivi médical - leucémie - peut en dépendre. 2 / leads to an interpretable spread. This notion is important when you know that a diagnosis or a medical follow-up - leukemia - can depend on it.
3/ est un matériel léger et peu encombrant. 3 / is a light and space-saving material.
4/ est sans accessoire de type: électrique, électronique ou chimique. 4 / is without accessory of type: electrical, electronic or chemical.
5/ utilise un seul type de lame de verre - normalisée dans les laboratoires 26/76 mm. 5 / uses a single type of glass slide - standardized in laboratories 26/76 mm.
6/ est réutilisable ou jetable selon le matériau. 6 / is reusable or disposable depending on the material.
7/ selon le matériau dont il est fabriqué, non jetable, permet au système d'être trempé dans une solution de décontamination qui est évacuée soit par l'orifice rectangulaire ( 3 ), soit par la fente ( 7 ). 7 / depending on the material from which it is made, non-disposable, allows the system to be soaked in a decontamination solution which is evacuated either by the rectangular orifice (3) or by the slot (7).
8/ présente, sur une des faces, un orifice rond ( 2 ) permettant au dispositif d'être éventuellement suspendu. 8 / has, on one of the faces, a round orifice (2) allowing the device to be possibly suspended.
Le dispositif composé d'un boîtier ( 1 ), présente un orifice de forme rectangulaire par lequel sera glissé une lame de verre. Il suffit d'introduire la lame de verre dans l'objet inventé pour que ce dernier soit prêt à l'emploi. The device composed of a housing (1) has a rectangular orifice through which a glass slide will be slid. It suffices to introduce the glass slide into the invented object so that the latter is ready for use.
L'exécutant introduit par l'orifice rectangulaire ( 3 ) une lame de verre ( L1 ) - de taille standard 26/76 mm - jusqu'au fond du boîtier. A l'intérieur de ce dernier se trouve d'une part, un ressort ( 4 perpendiculaire à la partie longue de l'orifice rectangulaire ( 3 ) qui colle la lame dans la partie supérieure du système la maintenant pendant le déroulement de l'opération ( étalement ) et d'autre part, une butée ( 5 permettant le maintient vertical de la lame. The operator introduces through the rectangular orifice (3) a glass slide (L1) - standard size 26/76 mm - to the bottom of the case. Inside the latter is on the one hand, a spring (4 perpendicular to the long part of the rectangular orifice (3) which sticks the blade in the upper part of the system holding it during the course of the operation (spreading) and on the other hand, a stop (5 allowing the vertical maintenance of the blade.
DESCRYFIF
L'opérateur saisit le système inventé muni de sa lame ( L1 ) et le présente de sorte que:
- le petit angle formé par la lame ' portée ' ( L1 ) et la lame à plat ( L2 ) soit amenée contre la goutte de sang.DESCRYFIF
The operator grasps the invented system with its blade (L1) and presents it so that:
- the small angle formed by the 'carried' blade (L1) and the flat blade (L2) is brought against the drop of blood.
- que la partie opposée du boîtier ( 1 ) à la lame ' portée ', qui présente un arrondi ( 6 > - facilitant le glissement -, repose sur la paillasse dans l'alignement de la lame supportant la goutte de sang. - that the opposite part of the housing (1) to the 'worn' blade, which has a rounded shape (6> - facilitating sliding -) rests on the bench in alignment with the blade supporting the drop of blood.
Dès que la goutte, par capillarité, s'est répandue de part et d'autre de l'angle formé par les deux lames, l'exécutant retient d'une main la lame à plat ( L2 ) pour l'immobiliser, et de l'autre, exerce sur le dispositif une poussée franche et régulière vers l'extrémité opposé du dépôt de sang, " étirant " la goutte de sang et difinissant ainsi: le frottis sanguin. As soon as the drop, by capillarity, has spread on either side of the angle formed by the two blades, the operator holds the blade flat (L2) with one hand to immobilize it, and the other exerts on the device a frank and regular push towards the opposite end of the blood deposit, "stretching" the drop of blood and thus defining: the blood smear.
En ce qui concerne la reproductibilité:
La qualité d'un frottis repose sur la propreté de la surface de verre utilisée. En conséquence, le dispositif présente des avantages:
- il utilise des lames standard 26/76 mm.Regarding reproducibility:
The quality of a smear rests on the cleanliness of the glass surface used. Consequently, the device has advantages:
- it uses standard blades 26/76 mm.
- le manipulateur, durant l'étirement du frottis, est protégé de toute coupure ou cassure de la lame de verre qui pourrait survenir. - the manipulator, during the stretching of the smear, is protected from any cut or break in the glass slide which may occur.
- la lame ' portée ' ( L1 ) peut être utilisée 4 fois, par retournements successifs, afin de présenter une face propre et non encore utilisée et ce pour garantir la bonne exécution du frottis, avant de servir elle-même de lame ' support ' ( L2 ). - the 'carried' blade (L1) can be used 4 times, by successive reversals, in order to present a clean face and not yet used and this to guarantee the good execution of the smear, before serving itself as a 'support' blade (L2).
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9512596A FR2740218A1 (en) | 1995-10-20 | 1995-10-20 | Blood sample preparation device for blood cell analysis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9512596A FR2740218A1 (en) | 1995-10-20 | 1995-10-20 | Blood sample preparation device for blood cell analysis |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2740218A1 true FR2740218A1 (en) | 1997-04-25 |
Family
ID=9483909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9512596A Withdrawn FR2740218A1 (en) | 1995-10-20 | 1995-10-20 | Blood sample preparation device for blood cell analysis |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2740218A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR996621A (en) * | 1945-05-04 | 1951-12-24 | Apparatus for plating blood or other suspensions | |
US2655898A (en) * | 1950-10-21 | 1953-10-20 | Mcneil Crichton | Apparatus for making blood films |
FR2315693A1 (en) * | 1975-06-23 | 1977-01-21 | Technicon Instr | PREPARATION OF FRUIT, ESPECIALLY ORGANIC FRUIT FOR MICROSCOPY |
US4319542A (en) * | 1979-07-09 | 1982-03-16 | Agency Of Industrial Science & Technology | Apparatus for preparation of blood smear specimens |
FR2521455A1 (en) * | 1982-02-17 | 1983-08-19 | Sagem | Fixed speed displacement device for spreading substance on slide - has elastic return spring and foucault current retaining device acting on opposite directions to maintain speed constant |
-
1995
- 1995-10-20 FR FR9512596A patent/FR2740218A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR996621A (en) * | 1945-05-04 | 1951-12-24 | Apparatus for plating blood or other suspensions | |
US2655898A (en) * | 1950-10-21 | 1953-10-20 | Mcneil Crichton | Apparatus for making blood films |
FR2315693A1 (en) * | 1975-06-23 | 1977-01-21 | Technicon Instr | PREPARATION OF FRUIT, ESPECIALLY ORGANIC FRUIT FOR MICROSCOPY |
US4319542A (en) * | 1979-07-09 | 1982-03-16 | Agency Of Industrial Science & Technology | Apparatus for preparation of blood smear specimens |
FR2521455A1 (en) * | 1982-02-17 | 1983-08-19 | Sagem | Fixed speed displacement device for spreading substance on slide - has elastic return spring and foucault current retaining device acting on opposite directions to maintain speed constant |
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