The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2006
Filed:
Jan. 31, 2002
Iginio Longo, Pisa, IT;
Iginio Longo, Pisa, IT;
CNR Consiglio Nazionale deile Ricerche, Rome, IT;
Abstract
The present invention relates to minimally invasive surgery techniques. It provides a method for manufacturing an antenna for percutaneous acute hyperthermia microwave applications of the monopole or dipole co-axial type provided with trap, commonly called choke, for blocking the propagation of the backwards reflecting wave towards the generator. The miniaturization of the device allows a use minimally invasive for interstitial hyperthermia in medicine and surgery, in particular for oncology. The method of manufacturing the antenna provides a metal needle () for the introduction of the antenna () in the target tissue. On the external conductor () of the antenna () a metal collaris connected in a predetermined position; a plastics sheath () is applied in order to cover the external conductor () in the portion between the feed () and the collar; the inner wall of the metal needlewherein the antenna is inserted is then used for containing and guiding the collarand the sheath; in particular, the collarbeing in electrical contact with the inner wall of the metal needle. An antenna is thus obtained with choke of variable length and with miniaturized diameter. A thermocouple can be introduced through the choke that protrudes the directly in the 'feed' zone.