| 摘要 |
An improved nozzle system for a flow cytometer and accompanying methods have been invented for a high efficiency orientation and sorting process of a fla t sample and dedicates items such as equine or bovine sperm cells. This improv ed nozzle system comprises a nozzle (16) with a novel interior surface geometry that can both gently accelerate the cells and can include an elliptical-like , single torsional interior surface element within (c) the nozzle, i.e., a single torsional orientation nozzle (6). The elliptical-like, single torsion al interior surface element (e.g.) (8, 9, 10) may have a laminar flow surface a nd may produce the simplest flow path for applying minimal forces which act in either an accelerative nature or orienting hydrodynamic forces, namely, the single torsional orientation forces, to orient a flat sample (16) such as animal sperm cells into a proper direction for an analyzing and efficiently sorting process in clinical use, for research and for the animal inseminatio n industry. |
