Catheter and a method for manufacturing a catheter

摘要

A balloon catheter comprising a catheter (3) and a balloon (7) located at a distal end (5) of the catheter (3). A plurality of measuring electrodes (12) formed on a primary substrate (17) extend around the catheter (3) within the balloon (7). The primary substrate (17) is formed by a portion of a flexible resilient membrane (25) which also forms a secondary substrate (19). The measuring electrodes (12) are formed on the primary substrate (17) by first electrically conductive tracks (27) and second electrically conductive tracks (28) which are electrically connected to the first electrically conductive tracks (27) are simultaneously formed on the secondary substrate (19). The membrane (25) is coiled to form a roll, and the primary substrate (17) is also coiled around the rolled secondary substrate (19). The coiled primary and secondary substrates (17,19) is urged through a second lumen (20) in the catheter (3) from the proximal end (4) thereof to a radial slot (21) in the catheter communicating with the second lumen (20). The primary substrate (17) is urged through the radial slot (20) and wrapped around and bonded to the catheter (3) to form the measuring electrodes (12) as band electrodes.

主权项

1. A method for manufacturing a catheter, the method comprising:
providing a catheter with an elongated lumen extending through the catheter from a proximal end thereof, and a radial opening communicating with the lumen, providing a primary substrate having at least one first electrically conductive element located thereon with the primary substrate extending from an elongated carrier means, wrapping the primary substrate around the carrier means, urging the carrier means with the primary substrate wrapped around the carrier means through the lumen of the catheter from the proximal end thereof until the primary substrate is located adjacent the radial opening, urging the primary substrate through the radial opening, and wrapping the primary substrate around the catheter with the at least one first electrically conductive element exposed exteriorly of the catheter.