Titanium Products in Medical Implant
At present the application of medical titanium and titanium alloys become very popular as new materials in artificial joints, spinal correction and other fields.
Medical Titanium and titanium alloys are excellent replacing materials in artificial joints, spinal correction and other fields and other hard tissues because they have high density and low elastic modulus, which can avoid local bone absorption.
Medical Titanium and titanium alloys are excellent replacing materials in artificial joints, spinal correction and other fields and other hard tissues because they have high density and low elastic modulus, which can avoid local bone absorption.
The acetabular cup and cuboid bone stem of artificial hip prosthesis are usually made of medical titanium and titanium alloys. Bone and joint substitutes are subject to torsion, compression, muscle contraction and other effects in the human body, so the requirement for the implant strength and toughness for the medical titanium and alloys to the body is very strict. After the acetabulum is fixed, the joint head can move freely in the acetabular cup.
Artificial knee joints are also often made of medical titanium and titanium alloys, and consist of three parts: the tibial component, the femoral component, and the patellar component.
Pure titanium can be used in parts of the human body where stress is small, and TC4 titanium alloy can be used in parts of the human body where stress is large.
In biomedical metal materials, titanium and titanium alloys, with their excellent comprehensive properties, have become for artificial joints (hip, knee, shoulder, ankle, elbow, wrist, finger joints, etc.) and bone trauma products (marrow) internal nails, steel plates, screws, etc., spinal orthopedic internal fixation systems, dental implants, dental supports the first medical implant products such as orthopedic wires, artificial heart valves, and interventional cardiovascular stents select materials. At present, there is no better metal material for clinical use than titanium alloy. developing country both domestic and world-renowned suppliers of implantable products attach great importance to the research and development of titanium alloys.
We have launched a series of new medical titanium alloy materials, including titanium alloys with biological activity gold biomimetic materials have also been patented in the surface treatment of medical titanium alloy materials. The design and development of medical titanium alloy materials endow them with better biological activity to meet the needs of the human body physiological needs are necessary to achieve the goal of early recovery for patients.
For example, bone plastic surgery mainly includes two concepts: one is simple cheekbone chiseling to shrink the outer part of the bone contour; Another type is three-dimensional osteotomy, which achieves the reduction of cheekbones through the shortening and movement of bone blocks
Cheek bone chiseling surgery is generally suitable for patients with anterior lateral facial protrusion, often using intraoral incision the mouth is separated under the periosteum to expose the cheekbone, and special instruments are used to remove the preoperative design chisel and thin the cheekbones to reduce the outer contour of the face and improve facial shape.
Using titanium nails
Titanium plate fixation is used to prevent the cheekbones from slipping and causing facial contour loss, and it can also better achieve the effect of cheekbone shaping! The biggest advantage of this surgery is that there are no scars left after the operation trace, seamless, leaving no trace. The surgical difficulty of three-dimensional osteotomy of the zygomatic bone is greatly increased.
Plus, suitable for patients with protruding cheekbones. In addition to intraoral incisions, it is usually necessary to make incisions within the hairline auxiliary incision can be made in concealed areas, or a single coronal incision can be made in the scalp, with subperiosteal separation exposed after the entire cheekbone is removed, a specific size of bone is cut according to the requirements of computer 3D simulation design the separated bone blocks are reconnected and shaped using special materials such as titanium nails can change the entire facial contour and shape to the maximum extent possible, even allowing patients to achieve a "transformation" the effect of bones.
In dental Implant
Dental implants Titanium and titanium alloys are widely used as tooth restoration materials.
Their advantages are as follows:
① Titanium dissolves less in acidic and alkaline environments, and does not have the corrosion and discoloration problems of silver alloys;
② It is very safe for the human body and will not cause hypersensitivity reactions caused by nickel alloys;
③ The density of pure titanium is only 4.50 g/cm3, which is close to the density of natural teeth. The gums made of it are light in weight and have a good feeling of fitting;
④ Pure titanium has low thermal conductivity and is non-irritating to the pulp;
⑤ Compared with traditional gum materials, it has the characteristic of not changing the taste of food when chewing. Therefore, titanium and titanium alloys are the dental materials with the best clinical application effect so far.
Conclusion:
Biomedical titanium materials are an important branch of materials science, used for diagnosis and treatment treat or replace human tissues, organs or enhance their function, with high technological content and high economy. The new carrier material of value is a developing new field in materials science and technology.
