JAPAN ELECTEL INC. Patent applications |
Patent application number | Title | Published |
20130165914 | BALLOON CATHETER - Thermal conduction to a non-target tissue is unfailingly blocked off to select and effectively ablate only a target tissue. A catheter shaft | 06-27-2013 |
20120123331 | BALLOON CATHETER SYSTEM - A balloon catheter system enables only a target site to be efficiently ablated, ensuring a balloon to be able to be brought into close contact with the target site in conformity to a shape of the target site. The balloon includes a contact portion that contacts the target site and a noncontact portion that does not contact the target site. A membrane thickness of the contact portion is thinner than that of the noncontact portion The target site that is in contact with the thin contact portion is selectively ablated, while the thick noncontact portion is less likely to exhibit a temperature increase. Hence, only the target portion is efficiently ablated. | 05-17-2012 |
20110264085 | BALLOON CATHETER SYSTEM - It is an object of the present invention to provide a radiofrequency thermal balloon catheter system capable of precisely predicting the surface temperature of a balloon which directly heats a target tissue without allowing a temperature sensor to directly contact with a balloon membrane. In the radiofrequency thermal balloon catheter system, a vibrational wave W is applied to an inside of the balloon | 10-27-2011 |
20100069836 | RADIOFREQUENCY HOT BALLOON CATHETER - A novel radiofrequency hot balloon catheter capable of exactly cauterizing a target site around the mitral annulus. The radiofrequency hot balloon catheter includes a catheter shaft comprising an outer cylinder shaft and an inner cylinder shaft which are mutually slidable, a balloon provided between vicinities of a distal end of the outer cylinder shaft and a distal end of the inner cylinder shaft, a liquid sending pathway formed between the outer cylinder shaft and the inner cylinder shaft to communicate with an inside of the balloon, a coil-shaped electrode provided inside the balloon and through which a radiofrequency current conducts for heating the inside of the balloon. On the catheter shaft in the vicinity of the balloon, the radiofrequency hot balloon catheter includes an intracardiac potential detection electrode | 03-18-2010 |
20090157066 | BALLOON CATHETER SYSTEM - There is provided a balloon catheter system, enabling only a target site to be efficiently ablated, ensuring a balloon to be able to be brought into close contact with the target site in conformity to a shape of the target site. A balloon includes a contact portion that is to contact a target site and a noncontact portion that is not to contact the target site. A membrane thickness of the contact portion is thinner than that of the noncontact portion. Then, the target site that is in contact with the thin contact portion is selectively ablated, while making heat leak from the thick noncontact portion less likely to occur. Hence, only the target portion can be efficiently ablated. | 06-18-2009 |