Use of polymers biomaterials, is increasing day by day. The biomaterials are the materials that can be implanted in body of living to provide special prosthetic functions or used as diagnostic, surgical and therapeutic applications.

Essential properties of biomaterials: A polymer biomaterial when comes in contact of blood and tissues should not cause any harm or destroy components of blood or tissues. It should not be toxic, allergic It should be easy to fabricate, sterilize without alteration in properties, in short and biocompatible.

APPLICATIONS: To construct artificial replacement for human organs.

To repair, sustain and augment functions of organ

To provide biochemical functions.

EXAMPLES:

1.SILICONE POLYMER :

STRUCTURE :

Properties : Outstanding chemical inertness to body fluids, non-toxic, flexible.

Uses : Heart valves, blood filters, artificial heart, vascular tubing.

2. Polymethyl methacrylate(PMMA) :

Structure :

Properties: It is transparent and easy to mould.

Uses: Contact lenses, dental restorative.

3. Polyvinyl Chloride :

Structure :

Properties: It is strong, inert.

Uses: for making syringes.

4.Polylactic acid polymer:

Structure:

Properties: It biodegradable and decomposable.

Uses: Surgical sutures, Dialysis media, drug delivery, stents organs regeneration, controlled release, plastic surgery.

5. Poly glycolic acid polymer:

Structure :

Properties: Easy hydrolysable by body fluid.

Uses: Surgical applications, absorbable sutures implantable medical devices as anastomosis rings, plates, rods, pins, screws.

6. Polymer rubber :

Properties: It is flexible.

Uses: For reconstructive surgery.