Black tungsten wire (i.e., unpolished tungsten wire) is widely used in medical equipment due to its high strength, high melting point, corrosion resistance, and excellent electrical conductivity. Below are its specific applications in medical devices:
Cathode and Target Material in X-ray Equipment Black tungsten wire, with its high melting point (approximately 3422°C) and superior thermionic emission properties, is commonly used as the cathode in X-ray tubes, serving as an electron emission source. The wire is heated under high voltage to emit electrons, which bombard the anode target to generate X-rays for imaging devices such as CT scanners and X-ray machines. Additionally, tungsten wire can be a component of the target material, used to produce high-energy X-rays.
Medical Laser Probes Due to its high strength and heat resistance, black tungsten wire is used in the manufacturing of conductive wires or support structures for medical laser probes. For example, in laser devices operating at wavelengths from 266 to 2200 nm (e.g., holmium lasers), tungsten wire serves as a conductive or structural component, ensuring stability in high-energy environments.
Electrodes in Electrosurgical Devices Black tungsten wire’s high conductivity and corrosion resistance make it suitable for use as electrodes or conductive components in electrosurgical devices, such as electrocautery knives or radiofrequency ablation equipment. These devices require stable current transmission and heat resistance, and tungsten wire meets these demands, enabling precise cutting or tissue ablation during surgery.
Implantable Medical Devices In certain implantable devices, such as pacemakers or neurostimulators, black tungsten wire is used as micro-wires or electrode materials. Its high strength and biocompatibility make it suitable for long-term use in the body, while its fine diameter supports the miniaturization requirements of these devices.
Ultra-Fine Tungsten Wire in Monitoring Equipment Ultra-fine black tungsten wire, with its high precision and stability, is used in medical monitoring equipment (e.g., electrocardiographs or pulse oximeters) as a component in sensors or circuits. The wire facilitates signal transmission or serves as a resistive element, ensuring accurate collection of physiological signals with low noise interference.
Dental and Orthopedic Equipment Due to its high hardness and wear resistance, black tungsten wire is used in the manufacturing of dental tools or orthopedic surgical instruments, such as dental drill bits or reinforcing materials for orthopedic fixation devices. Its corrosion resistance ensures durability in complex physiological environments.
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