<b>Talking about the application of polyurethane elastomer in the field of medical equipment</b>

In the field of industrial production, polyurethane is an important chemical material. In the medical field, some excellent properties of polyurethane also make it an indispensable medical material. Among the polyurethane materials currently used in the field of clinical medicine, thermoplastic polyurethane elastomer, which is what we often sayTPU , has a very wide application.

TPUis a linear block polymer composed of soft segment (long chain oligomeric diol) and hard segment (diisocyanate and chain extender). The polarity difference between soft and hard segments in the molecular structure of polyurethane makes this chemical structure have excellent mechanical strength, flexibility, wear resistance; most importantly, it has good biocompatibility. These excellent properties andTPUThe convenience of its own processing makes it widely used in the preparation of various medical and health care products.

20century50In the 1990s, polyurethane materials were first used as fracture repair materials, and later Successfully applied as a supplementary coating for sutures in vascular surgery. 70Sans-serif,Polyurethane�As a medical material has been paid much attention. Arrived80early,Successful Artificial Heart Transplant Using Polyurethane Elastomer,The polyurethane elastomer material also opens up applications in biomedicine.

Artificial Heart Assist

Artificial hearts and heart assist devices have very strict requirements on the performance of materials: in addition to not causing thrombus, not destroying blood cell components and biological enzymes, Not to change plasma proteins, but also not to cause harmful immune reactions, not to cause cancer, not to release electrolytes, and not to produce toxins. Polyurethane elastomer has good hemocompatibility, biocompatibility and durability. It has excellent performance in clinical practice and has become the first choice for artificial heart materials superior to natural rubber and other materials. British medical device manufacturerAortechThe company will useTPUThe material is combined with a high amount of silicone to create a new artificial heart valve. Other polyurethane elastomers for artificial hearts have been commercialized, such asBiomer,Cardiothane,Pellethane,Tecoflex EGetc.

thin film

At present, high-end wound dressings are usually processed by three components, which are film, foam and glue. In simple terms, the moisture-permeable film can help regulate the wound healing environment, the foam is used to prevent the tissue fluid overflowing from the wound, and the final dressing is adhered to the skin by glue. TPUThe excellent waterproof and moisture permeability of the film can adjust the humidity of the wound healing environment, create the most optimal wound healing environment, and greatly reduce the The possibility of contamination of the wound by the external environment. At present, Covestro has launched different moisture permeability, different colors, different linings, different surface matte effects and adjustable peeling forceTPUFilm, combined with water-based polyurethane foam and water-based polyurethane glue, provides high-end medical wound dressing solutions.

Medical catheter

TPUIt is also used in various medical catheter materials, such as infusion tubes, catheters and urinary catheters. UseTPU The catheters produced are sufficiently flexible, elastic and non-toxic, and have been commonly used in foreign countries at presentTPU as medical hose material. But in Asia,PVC is still the most commonly used medical material, but becausePVCreleases harmful chemicals during routine use and disposal and has been phased out in many other regions. TPUIt has been proved to be a safe, stable and high-qualityPVCAlternative materials have also been obtained by many intravenous infusion sets and Approvals from other medical device manufacturers. Lubrizol Life Sciences has a wide range of custom thermoplastic tubing products such as balloon tubing, tri-layer tubing, multi-lumen tubing, and more. Some experts also believe that in the future5During the year, the medical market, especially in the infusion set manufacturing market,TPU ReplacePVC has become an inevitable trend, medical Materials will definitely develop in a safer and more environmentally friendly direction. FutureTPUThe market potential of medical catheter pairs is huge, the only shortcoming is medical useTPUThe price is still relatively expensive.

"Thermoplastic Polyurethane special material", will be held2018year4month1 officially implemented from 10.5pt; This will be beneficial to the development and practical application of medical thermoplastic polyurethane special materials in China,For specificationTPUApplication in the field of medical equipment has important guiding significance.

mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial">Medical Catheters The market potential is huge, the only shortcoming is medical useTPUThe price is still relatively expensive.