Abstract: A biopsy needle device (10) is provided which includes an introducer cannula (20) defining a lumen (25) sized to receive a biopsy needle (11) therethrough and a lateral opening (24) in communication with the lumen (25) adjacent the first end (21) of the cannula (20). The invention also includes a solid tip (30) having an anatomically distal end (31) secured to the first end (21) of the cannula (20) and a proximal end (32) configured to pierce tissue. A ramp (35) is disposed within the cannula (20) at an end (36) of the lateral opening (24) adjacent the first end (21) of the cannula (20). The ramp (35) is inclined toward the lateral opening (24), whereby a biopsy needle (11) will be deflected through the lateral opening (24) as it advances within the lumen (25) and exits the cannula (20).

Abstract: An aquarium system includes an inlet reservoir, an aquarium tank defining a container for water in fluid communication with the inlet reservoir to receive water displaced from the inlet reservoir, an outlet reservoir in fluid communication with the tank for receiving water displaced from the tank, and a water treatment unit in fluid communication with the inlet reservoir and the outlet reservoir. The water treatment unit includes a rotatably supported media wheel which has a first hollow portion and a second portion carrying a water displacement media. The media is alternately submersible into and raisable out of water contained in the water treatment unit as the media wheel is rotated to displace water from the unit to the inlet reservoir, to thereby cycle water through the system. In one embodiment, the displacement media is a biological media. In another embodiment, the media wheel carries an algae screen on its perimeter.