There is provided improved physiologically acceptable articles made from various fluorocarbon polymers and a process for maintaining the normal integrity of the blood of warm-blooded animals with said articles. The physiologically acceptable articles include specific medial devices such as catheters, etc., useful in contact with blood or tissue in warm-blooded animals.
Thromboresistant biomedical articles are provided which are useful in the fields of subdermal surgical implants, laboratory apparatus and blood containers. These articles have at least a thin surface coating of an organic polymeric material having fluoroalkyl side chains and simple anionic side groups.
A catheter suitable for insertion into veins and arteries has an outer surface which is antithrombogenic. One such surface is acidic and is partially neutralized with metallic ions. A catheter in accordance with the present invention is non-thrombogenic and is essentially free of tendency to cause thrombosis, thrombophlebitis or periphlebitis.
A retaining catheter formed of an inert fluorocarbon polymer and including means in the region of the end thereof for retaining said catheter within the body channel in the form of a helical thread projecting radially from the outer surface of the catheter.
4146033 - Medical catheter - Owned by Hisamitsu Pharmaceutical Co., Inc. (Saga,JP) Nippon Zeon Co., Ltd. (Tokyo,JP)
A novel medical catheter, formed of a rubber component comprising substantially a homopolymer of epichlorohydrin and fillers comprising silica and/or silicates, possesses sufficient tensile strength and flexibility and meets the sanitary requirements.
