Three-way Stop Cock

Features of Three-way Stop Cock

• Used for pressure infusion and blood pressure monitoring

• Made from non-toxic, medical-grade PVC

• Has two female luer lock ports and one male luer lock port, with a rotatory lock for safe connection to other devices

• Three-arm handle for smooth and easy operations

• Minimum residual fluid volume

Specification of Three-way Stop Cock

Structure and Design

A 3-way stopcock valve typically consists of a small, cylindrical valve body with three ports (inlets/outlets) arranged in a T-shape. These ports allow connection to IV lines or other medical devices. The stopcock's central component is a lever or a rotating mechanism that can be turned to open or block the flow of fluids through the ports. This mechanism is usually marked with indicators to show the direction of flow or which port is open or closed.

The materials used for manufacturing 3-way stopcock valves are critical for ensuring biocompatibility, chemical resistance, and minimal interaction with the fluids or drugs passing through them. Common materials include medical-grade plastics like polycarbonate, polyvinyl chloride (PVC), and sometimes metals for specific applications that require sterility and durability.

Functionality

The primary function of a 3-way stopcock is to control fluid flow with high precision. By turning the lever or handle, healthcare professionals can select which ports are open or closed, thereby directing the flow of fluids between various lines connected to the patient. This allows for:

• Multiple Infusions: Simultaneous administration of fluids or medications from different sources through a single IV access point.

• Selective Blocking: Ability to temporarily stop the flow from one source while allowing it from another, without disconnecting the setup.

• Mixing of Medications: Facilitating the mixing of two fluids or medications before they enter the patient's bloodstream.

• Control of Flow Rate: Although not a primary function, by partially opening or closing the ports, it can somewhat regulate the flow rate.

Applications

3-way stopcock valves find applications in a wide range of medical settings, including:

• Intravenous Therapy: For administering IV fluids, medications, blood products, and nutritional substances.

• Anesthesia: In anesthesia delivery systems for controlling and mixing anesthetic agents.

• Critical Care: In intensive care units (ICUs) for managing multiple infusions and critical drug delivery.

• Diagnostic Procedures: In procedures requiring the injection of contrast agents or withdrawal of samples without removing the needle.

• Surgical Procedures: For precise control of fluids or gases during surgeries.

Conclusion

3-way stopcock valves are indispensable in modern healthcare for their versatility and precision in fluid control. Their design allows for easy operation, while their materials ensure safety and compatibility with a wide range of medical substances. As medical technology advances, the design and functionality of these valves continue to evolve, enhancing patient care and treatment outcomes.