Micropathological patient replica based on unadulterated...

C - Chemistry – Metallurgy – 12 – M

Patent

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Details

C12M 1/26 (2006.01) C12M 1/20 (2006.01) C12M 1/22 (2006.01) C12M 3/06 (2006.01)

Patent

CA 2283753

A patient replica is created from a layered culture medium where solid culture medium is formed so that a discontinuity exits between and contiguous with two of the layers of culture medium. An infusion port is provided in registration with the discontinuity so that a fresh unadulterated sample of patient blood can be infused into the discontinuity to form a thin layer of blood contiguous with the surrounding layers of culture medium. The thin layer obviates the requirement for any anticoagulant alloying blood-borne pathogens to be readily cultured without using broth. Further antibiotics or other drug samples may be placed on the surface of the culture medium above the blood layer so that the antibiotic can diffuse through the culture medium and reveal the sensitivities of the cultured pathogens. Other samples of pathogens or tissues can be placed on the exposed (upper) surface of the culture medium so that effects of drugs or growth factors present in the patient blood can be observed thereby allowing the entrapped blood layer to act as a biological replica of the patient.

On crée une réplique d'un patient à partir d'un milieu de culture en couches dans lequel se forme un milieu de culture solide, de sorte qu'une discontinuité existe entre les couches. Un orifice d'infusion est aligné sur la discontinuité, de manière à pouvoir infuser un spécimen neuf non dénaturé du sang du patient dans la discontinuité, afin d'obtenir une couche mince de sang entre les couches du milieu de culture. Cette couche mince élimine le besoin d'anticoagulant, ce qui permet de cultiver sans difficultés des pathogènes portés par le sang sans utiliser de bouillon de culture. On peut placer d'autres antibiotiques ou d'autres échantillons de médicaments sur la surface du milieu de culture au-dessus de la couche de sang, de telle façon que l'antibiotique puisse se diffuser à travers le milieu de culture et révéler les sensibilités des pathogènes cultivés. On peut placer d'autres spécimens de pathogènes ou de tissus sur la surface du milieu de culture, de manière à pouvoir observer les effets de médicaments ou de facteurs de croissance présents dans le sang du patient, ce qui permet à la couche de sang piégée de jouer le rôle de réplique biologique du patient.

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