Abstract: A dosing cup for delivery of medicinal fluid includes a base wall, a sidewall, a first gripping portion, and a second gripping portion. The sidewall extends from the base wall to an upper rim, thereby defining a medicinal fluid-receiving volume. The first gripping portion is formed at a first position of the sidewall. The second gripping portion is formed at a second position of the sidewall opposite the first position across the medicinal fluid-receiving volume. Each of the first gripping portion and the second gripping portion include one or more anti-nesting projections that extend from an outer surface of the sidewall a distance beyond an inner diameter of the upper rim.

Abstract: An embryo transfer catheter with a protective sheath is disclosed. The use of a protective sheath shields a guide catheter from cervical mucus. The retracted open flaps of the outer protective sheath draw the mucus and blood away from the inner guide catheter. This allows an inner embryo transfer sheath to enter the uterus unobstructed. The embryo is then transferred to the uterus by means of fluid pressure with a culture medium. The protective sheath may be snap fit onto the guide catheter. The sheaths and catheters may be manufactured in a variety of lengths for individual convenience and then snap-fit onto each other for better control during an embryo implantation procedure. Other catheters and related instruments may also be manufactured with snap-on features.