Self-Sealing Needle Prevents Bleeding

Oct-27-16 An innovative new self-sealing needle could help reduce the dangers of injections for patients with hemophilia.

Developed by a team of researchers from Korea, the self-sealing needle is coated with a thin, biodegradable polymer derived from chitosan. When the material makes contact with the blood inside the body, it will shift from a solid to a gel to close off the injection site and stop the bleeding.

In tests on mice with hemophilia, the mice injected with the modified needles showed a 100 percent survival rate, whereas the mice treated with normal needles all died.

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[PHYS.ORG]
[NATURE.COM]

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