Exterior antimigration refinements for self-cleaning indwelling therapeutic articles

摘要: External grooving on a catheter traps microorganisms nurtured by mucus in patient's body. The also contaminating debris, originating outside the body, that migrates into body along exterior. Energy, which may be propagating vibration or electrical energy radioactive material, is carried to groove (or grooves), from source This function performed fiber embedded held catheter, liquid column (e.g., an annular lumen) other ways. disables and disintegrates debris trapped at groove. depth, interface geometry, case of vibrational frequency too, are selected minimize projection tissues. Suction applied as through auxiliary lumen (or, some drain catheters, intermittently primary itself), remove resulting detritus grooving. Circumferential grooves used impede migration longitudinally, longitudinal deter formation continuous circumferential sheets contaminants, spiral lengthen path catheter--or combinations these forms.