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About Ultrasonic Welding For Assemblying Of Medical Components


Assemblying Medical Devices can be a challenge since they are made up of different thermoplastic materials and frequently require hermetic seals. The Disposable nature of the products requires that costs are minimal. Medical devices are often assembled from several components.


Ultrasonic welding offers a solution to these problems. Ultrasonics can be used to join plastic parts, insert metal fasteners in thermoplastic materials, form plastic rivets, degate plastic parts, and cut and seal films and fabrics. Ultrasonic welding can be used to assemble a variety of medical devices, including liquid-bearing vessels, intravenous components, IV components, Cannula, Filters, Diagnostics, Surgical mesh, hearing aids, filters, monitors and diagnostics components. Ultrasonic bonding is also used to assemble nonwoven textiles for such items as medical gowns, boots, caps, face masks, hygiene products, incontinence products, bed protectors, surgical drapes, pillow covers and filter media.


During ultrasonic welding, high frequency vibrational energy at the interface of two plastic parts causes the material to soften and flow in a fraction of a second. When  the material is pressed together and it resolidifies, the bond is made. No glues or solvents are needed. Heating is confined to the interface are so that the assembled parts are not too hot to handle immediately after welding.


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