Biodegradable microspheres and method for their preparation

An inexpensive and easy to use method of visualizing an arterial circulation using biodegradable microspheres dyed with an X-ray absorbent material, which enables the diagnosis of pulmonary embolism, is provided. The microspheres are injected into bloodstream at a particular location such that they...

Full description

Saved in:
Bibliographic Details
Main Author SHELL, WILLIAM ELSON
Format Patent
LanguageEnglish
French
German
Published 17.09.1986
Edition4
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
Online AccessGet full text

Cover

More Information
Summary:An inexpensive and easy to use method of visualizing an arterial circulation using biodegradable microspheres dyed with an X-ray absorbent material, which enables the diagnosis of pulmonary embolism, is provided. The microspheres are injected into bloodstream at a particular location such that they travel through the desired arterial circulation, where they become lodged. Upon exposure of the arterial circulation to X-rays, blood vessels therein containing the microspheres will absorb the X-rays, causing them to show on a developed X-ray in contrast to other blood vessels and body tissue which do not contain the microspheres that transmit the X-rays. The microspheres are designed to dissolve into the bloodstream within fifteen to thirty minutes after their introduction.
Bibliography:Application Number: EP19860103233