| Material: | Stainless Steel |
|---|---|
| Shape of Head: | Hexagon |
| Surface Finishing: | Zinc Plated |
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Housings and Enclosures
Materials: Typically constructed from stainless steel (e.g., 316L) or aluminum, these materials offer excellent corrosion resistance and biocompatibility.
Functionality: Housings protect the internal mechanisms of the pump from contamination and physical damage. They also provide a platform for mounting other components.
Valves and Fittings
Materials: Often made from stainless steel or brass, these parts need to be durable and able to withstand repeated sterilization processes.
Functionality: Valves control the flow direction and pressure within the pump, while fittings connect different sections of the fluid path securely.
Pump Heads
Materials: Can be made from a variety of metals, including stainless steel and aluminum, depending on the pump type and specific application.
Functionality: The pump head contains the mechanism that drives the fluid movement, such as rollers in a peristaltic pump or pistons in a syringe pump.
Shafts and Bearings
Materials: Stainless steel is a common choice due to its strength and corrosion resistance.
Functionality: Shafts transmit rotational motion from the motor to the pump mechanism, while bearings reduce friction and wear between moving parts.
Mounts and Brackets
Materials: Often made from stainless steel or aluminum.
Functionality: These parts are used to secure the pump to a stationary object or to allow it to be mobile via a stand or cart.
Screws and Fasteners
Materials: Typically stainless steel or other non-corrosive alloys.
Functionality: These small but critical components hold the pump together and ensure that all parts remain in place during operation.
Biocompatibility: Materials must not react adversely with bodily fluids or tissues.
Sterilizability: Components must withstand frequent sterilization cycles without degrading.
Precision: Tight tolerances are required to ensure accurate fluid delivery rates.
Durability: Must withstand regular use and occasional sterilization procedures.
Regulatory Compliance: Adherence to standards set by regulatory bodies such as the FDA (Food and Drug Administration) and ISO (International Organization for Standardization).
Reliability: Metal parts are less prone to failure under the stress of continuous operation.
Hygiene: Smooth surfaces of metals make them easier to clean and disinfect.
Longevity: Higher resistance to wear and tear extends the life of the pump.
Performance: Metals can be engineered to meet stringent performance criteria, ensuring precise and consistent operation.
Infusion Pumps: Used in hospitals and home care settings to deliver fluids, such as medications, directly into a patient's bloodstream.
Dialysis Machines: Essential for filtering blood in patients with kidney failure.
Ventilators: While primarily pneumatic, some models incorporate fluid pumps for humidification or medication delivery.
Insulin Pumps: Portable devices that deliver insulin to individuals with diabetes.
Materials Selection: Choosing the right metal alloy that balances cost with the necessary properties for the application.
Precision Machining: Utilizing advanced techniques like CNC (Computer Numerical Control) machining to achieve tight tolerances.
Surface Finishing: Processes like polishing or coating to improve the surface characteristics and enhance corrosion resistance.
Quality Assurance: Implementing rigorous testing protocols to ensure compliance with medical device standards.
In conclusion, pump metal parts are indispensable in medical devices, contributing significantly to the safety, reliability, and performance of these critical pieces of equipment. Their design and manufacture are subject to strict regulations to ensure they meet the high standards required in healthcare settings.
Answer: SUS304L is a type of stainless steel specified under Japanese Industrial Standards (JIS). It is a low-carbon version of Type 304 stainless steel, which makes it resistant to intergranular corrosion. It is widely used in applications requiring good corrosion resistance and formability.
Answer: SUS304L is chosen because of its excellent corrosion resistance, especially in environments containing chlorides. Its low carbon content reduces the risk of carbide precipitation at weld heat-affected zones, making it suitable for welded structures. Additionally, its biocompatibility and ability to withstand sterilization processes make it ideal for medical applications.
Answer: Yes, SUS304L is known for its ability to withstand repeated sterilization cycles without degrading. This property is crucial for medical devices that require frequent cleaning and sterilization to maintain hygiene and prevent cross-contamination.
Answer: No, SUS304L is non-magnetic in the annealed condition, which is beneficial for applications where magnetic interference needs to be minimized, such as MRI machines or other imaging equipment.
Answer: While both SUS304L and SUS316L offer good corrosion resistance, SUS316L generally provides better resistance to marine environments and other corrosive conditions due to its higher molybdenum content. However, SUS304L is sufficient for many medical applications that do not involve exposure to harsh chemicals or saltwater.
Answer: SUS304L is commonly used for components such as housings, valves, fittings, pump heads, shafts, and brackets in medical pumps. These components benefit from the material's durability, strength, and corrosion resistance.
Answer: Yes, a smooth, polished finish is often recommended to minimize the risk of bacterial adhesion and facilitate easy cleaning. Other finishes may include electropolishing or passivation to further enhance the material's resistance to corrosion and improve its biocompatibility.
Answer: SUS304L can be machined using standard practices, though it may require slower cutting speeds and higher feed rates due to its work-hardening characteristics. Advanced machining techniques like CNC (Computer Numerical Control) are often employed to achieve the precise dimensions required for medical applications.
Answer: Yes, SUS304L can comply with various medical industry standards, including those set by the FDA (Food and Drug Administration) and ISO (International Organization for Standardization), provided it meets the specific requirements for purity and processing. Compliance depends on the exact specifications of the material and how it is manufactured and finished.
Answer: SUS304L can be welded using common methods such as TIG (Tungsten Inert Gas) welding or MIG (Metal Inert Gas) welding. Precautions include maintaining a low heat input to avoid overheating, which can lead to loss of corrosion resistance. Post-weld heat treatment is not typically required, but if it is performed, it should be done carefully to avoid sensitization.
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