Abstract: Provided is a system that enables training for catheter surgery without using radiation. The system offering training for catheter surgery includes: a light source; a blood vessel model to which a catheter having a fluorescent agent applied thereto is inserted; a tank in which the blood vessel model is placed; a filter for rejecting white light that is not transmitted through the blood vessel model, of illuminating light from the light source; a camera for imaging fluorescence transmitted through the filter; a driver for changing the attitude of the light source; and a computer that performs a process of reversing black and white of an image signal output from the camera.

Abstract: A medium with a reduced osmotic pressure containing a basal medium, in which the osmotic pressure is adjusted to 150 to 250 mOsm/kg, is useful for culturing cells.

Abstract: By using an additive for culturing animal cells that contains an amino acid or glucose, or an amino acid and glucose; or a medium for culturing animal cells that contains an amino acid or glucose, or an amino acid and glucose in addition to a medium component; or a method for culturing animal cells that includes culturing the animal cells using the aforementioned medium, or adding the aforementioned additive to a culture, the proliferation ability of animal cells can be improved particularly when the animal cells are cultured using a serum-free medium or a low albumin medium.

Abstract: Additives and media containing a water-soluble polymer are useful for suspension culture of animal cells, and can suppress the precipitation of medium components such as insulin 5 and the like due to physical stimulation of stirring, shaking, circulation, gas bubbling, or the like in suspension culture of animal cells, and can improve the culture efficiency of animal cells and the quality of cultured cells.

Abstract: Provided is a system that enables training for catheter surgery without using radiation. The system offering training for catheter surgery includes: a light source; a blood vessel model to which a catheter having a fluorescent agent applied thereto is inserted; a tank in which the blood vessel model is placed; a filter for rejecting white light that is not transmitted through the blood vessel model, of illuminating light from the light source; a camera for imaging fluorescence transmitted through the filter; a driver for changing the attitude of the light source; and a computer that performs a process of reversing black and white of an image signal output from the camera.