Mg alloy medical screws
Magnesium alloy screws
Magnesium alloy medical screws
Magnesium alloy medical screws can be used to treat fractures, joint replacements, cervical spondylosis, etc., and have advantages such as:
Good biocompatibility: Magnesium alloy is a biodegradable material, and its degradation products can be absorbed and metabolized by the human body without adverse effects on surrounding tissues and organs.
High strength: Although magnesium alloy is lighter than traditional materials such as stainless steel, it has high strength, which can provide sufficient force to stabilize fractures or surgical sites.
Elastic modulus similar to bone tissue: The elastic modulus of magnesium alloy is similar to that of bone tissue, which makes magnesium alloy screws less likely to cause stress concentration and fracture after surgery.
Controllable degradation rate: Over time, magnesium alloy screws will slowly degrade and be completely absorbed and metabolized in a few months or years. Since the degradation rate can be controlled, doctors can choose suitable screw models and specifications according to different surgical patients' needs.
The difference between medical magnesium alloy screws and ordinary magnesium alloy screws：
Material purity: Medical magnesium alloy screws need to be made from high-purity magnesium alloy materials to ensure that their properties such as biocompatibility and corrosion resistance meet the requirements of medical devices. The material purity of ordinary magnesium alloy screws is relatively low.
Mechanical properties: Medical magnesium alloy screws need to have sufficient strength and hardness to support and fix bone tissue, so the mechanical properties of medical magnesium alloy screws are usually better than those of ordinary magnesium alloy screws.
Biocompatibility: Medical magnesium alloy screws need to have good biocompatibility to avoid adverse reactions or side effects on human tissues, while ordinary magnesium alloy screws may not have been subjected to special treatment or testing in this regard.
Surface treatment: Medical magnesium alloy screws usually need to undergo special surface treatment to improve their corrosion resistance and biocompatibility, while ordinary magnesium alloy screws may not have undergone these treatments.
The specifications of magnesium alloy screws usually depend on the surgical requirements and the patient's bone characteristics.
Some common specifications are:
Diameter: From 1.5mm to 7.0mm, different diameter screws are suitable for different parts and bone sizes.
Length: From 10mm to 100mm, selected based on surgical needs and the patient's bone length.
Thread: There are two types: full thread and half thread. Full thread screws can provide better fixation force and are suitable for parts with higher stability requirements, while half-thread screws are easier to install and remove.
Shape: Including straight, T-shaped, L-shaped, Y-shaped, and other different shapes, can be selected according to surgical needs.
Welcome to consult