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:
Jun. 12, 2001
Filed:
Nov. 11, 1998
John Mark Morgan, Near Stockbridge, GB;
Andrew David Cunningham, Strathclyda, GB;
C. R. Bard, Inc., Murray Hill, NJ (US);
Abstract
With reference to the figure, an ablation catheter (,) for use in heart surgery comprises a probe (,), a tubular electrode (,) mounted on the probe, so as to axially be slidable relative thereto, and remote-operated actuator means (,) for so sliding the electrode (,). The probe (,) is of electrically-insulating material, and comprises a tip (,), an axially-extending shaft (,), and a rear end portion (,). A surface groove (,) is formed in the probe which extends longitudinally up to the tip (,). The groove (,) locates a conductor (,) which interconnects the electrode (,) with a controllable source (,) of electrical energy and is enclosed in an insulating sheath (,) of flexible construction. The flexible sheath (,), and conductor (,) therein are axially slidable within the groove (,) of the catheter (,). The sheath (,) provides for electrical insulation of the conductor (,) as the electrode (,) is moved along the probe shaft (,). In use, the catheter (,) is employed to create long endocardial lesions in cardiac chambers by application of radio frequency current provided by the source (,). Contiguous lesions are created, in a series of steps, by careful, remote-operated movement of the electrode (,), and energization of the same.