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The MiniGuard™ Arterial Safety Valve is intended to be used in an Extracorporeal Circuit during cardiopulmonary bypass procedures for the prevention of retrograde flow.

The MiniGuard Arterial Safety Valve ensures unidirectional flow in a blood filled line by means of a duckbill check valve located in the valve housing. If the line becomes pressurized, the check valve would automatically close and prevent flow in the reverse direction. A directional arrow as shown in Figure 12.1 below is printed on the valve to provide the user with a visual indication of blood flow. The MiniGuard Arterial Safety Valve consists of a an inlet and outlet housing made from Terlux 2802 HD ABS and a duckbill made from GLP-38L6 Off White Silicone rubber. The MiniGuard is sold with a cap made from PVC, 6811G-05. The cap is removed before use and has no patient contact. No colorants or adhesives are used on the valve.

The One Way Soft Valve is intended to be used for the prevention of retrograde flow in ¼/' or smaller lines subject to arterial pressure during cardiopulmonary bypass procedures for use up to six hours.

The One Way Soft Valve is a transparent one-way valve with ¼" inlet and outlet ports. The One Way Soft Valve prevents retrograde flow. A directional arrow is printed on the valve to provide the user with a visual indication of the allowable flow direction within the valve is constructed entirely of PVC and is to be used in lines subject to arterial pressures.

The IBC FloGard is indicated for use for the prevention of retrograde flow when used with centrifugal pumps during cardiopulmonary bypass surgery (up to six hours).

The IBC FloGard is a single-use, disposable, check valve intended for use for the prevention of retrograde flow in the arterial line when used with centrifugal pumps during open-heart surgery. The device is designed for use in the main arterial line when centrifugal pumps are used. The fully assembled IBC FloGard Valve is geometrically similar to the Quest RetroGuard valve, which is the predicate device for purposes of this 510(k) submission. The operating principles of the two devices are identical. The differences between the IBC VRV and the predicate device are found in the material selection, specific dimensions of the component parts and the type of check valve used. The first of these differences is the choice of polymer for molding the plastic components. The main flow through body of the IBC VRV is made of polycarbonate and the Quest RetroGuard is made of clear ABS. The polycarbonate is clearer, has higher impact resistance, greater tensile and compression strength and superior chemical resistance. Secondly, the straight duck bill check valve in the predicate device, Quest RetroGuard, required an oversized body to accommodate clinical flow rates without a substantial resistance to flow. The bi-leaflet design of the check valve in the IBC FloGard valve substantially reduces the size of the flow through housing without increasing resistance to flow. This geometry substantially lowered prime volume and hemolysis.

The COBE® Vacuum Relief Check Valve is indicated for use during cardiopulmonary bypass surgery to help prevent the buildup of excessive vacuum pressure when suctioning either from the heart or the surgical field, and to help prevent inadvertent flow of air into the heart.

The COBE® Vacuum Relief Check Valve is a sterile device with a non-pyrogenic fluid pathway. It is for single use only and is not to be resterilized by the user. The device consists of a housing with a 1/4" inlet port and a combination 1/4" and 3/8" outlet port (to accommodate either 1/4" or 3/8" ID tubing on the outlet side). It contains a unidirectional valve which prevents retrograde flow and an umbrella valve that opens under excessive vacuum, allowing air in to relieve the excessive vacuum pressure in the line. In addition, the device contains an over-pressure relief band which opens under excess positive pressure, allowing blood to escape. Arrows molded into the housing indicate the direction of flow through the device.

The RDI Suction Safety Device is intended to be used during open heart surgery and placed in a suction line to permit flow only away from the heart, prevent buildup of line pressure, and limit line vacuum.

The RDI Suction Safety Device is a three function assembly that is positioned in a suction line. The Suction Safety Device contains to valves. The first valve is a check valve that insures unidirectional flow. The second valve is a combination valve that relieves excess pressure and relieves excess vacuum.