A medical needle protector sheath having slotted sidewalls to receive a winged needle. The sidewalls define at least one catch projection and preferably one in each sidewall, spaced from closed ends of the slots in the sidewalls, to prevent needle wings occupying the sheath adjacent the closed ends from easily sliding away. The catch projection defines an elongated member having a first end that defines a wing catching tip extending into one of the slots. The elongated member is attached to the sidewall only at an elongated member end that is opposed to the first end. This permits the elongated member to flex in the sidewall plane, providing improved receipt and retention of the needle wings. Also, a protector sheath end wall may be provided that causes a needle and hub to be held in the sheath in an acute angle to the top wall, with the needle tip positioned against the underside of the top wall, a front, upstanding handle may be provided to the protector sheath which is flexible and preferably of substantial C-shape.