A medical system is a medical device, such as a catheter, that includes an inner core and an imager that is extendable from within an elongated tubular member and configured to penetrate a body tissue within a living body. The elongated tubular member has a distal end and is configured to slideably receive...http://www.google.fr/patents/US7715896?utm_source=gb-gplus-shareBrevet US7715896 - Systems and methods for internal tissue penetration
Systems and methods for internal tissue penetration