Patents are a virtue: Injectable blood-stopping bandages

AJ Park patent specialists Anton Blijlevens and Jillian Lim touch on an interesting patent to look out for on the shelves.

In many emergency situations, a bandage is not enough to prevent haemorrhage from a large wound. The inventor, Charles Kerber, of US patent 8,858,593 describes a device which inserts an expandable bandaging material directly into a wound, to quickly seal it, stop blood loss and reduce the risk of infection.

The device claimed has a tube and plunger. The tube contains a compressed sponge-like absorbent material and a separate break-seal vessel, such as an ampoule 24, containing a liquid which polymerises upon contact with bodily fluids. When the plunger is depressed, the sponge-like material is expelled into the open wound. At the same time, the break-seal vessel is broken, so that the liquid is also inserted into the wound, and diffuses within the sponge-like material, polymerising as it contacts blood and setting the material within the wound.

The patent describes various materials which may be used for the sponge-like filler, such as common surgical pads, gauze or absorbent bioabsorbable material. The specification also provides a list of suitable pre-polymer components which set upon contact with bodily fluids. 

Idealog has been covering the most interesting people, businesses and issues from the fields of innovation, design, technology and urban development for over 12 years. And we're asking for your support so we can keep telling those stories, inspire more entrepreneurs to start their own businesses and keep pushing New Zealand forward. Give over $5 a month and you will not only be supporting New Zealand innovation, but you’ll also receive a print subscription and a copy of the new book by David Downs and Dr. Michelle Dickinson, No. 8 Recharged (while stocks last).