Step 1: Understanding the Question:
The question asks for a synthetic polymer commonly used in the medical field for making stitches (sutures).
Step 3: Detailed Explanation:
- Nylon 6 (and Nylon 6,6) are polyamides with high tensile strength and durability.
- Specifically, Nylon 6 fibers are used to manufacture non-absorbable surgical sutures because they are strong and inert in the body.
- While biodegradable polymers like Nylon-2-nylon-6 or PHBV are also used for absorbable sutures, standard Nylon remains a primary choice for non-absorbable ones.
- Terylene (Dacron) is often used for artificial blood vessels. Neoprene is a synthetic rubber.
Step 4: Final Answer:
Nylon 6 is used to obtain surgical sutures.