There is disclosed a multiwall catheter and a method for the manufacture thereof. The catheter comprises two co-extensive elongated continuous plastic tubes having an intermediate braid sheath extending to within a few inches of the composite tube end where the composite tubing is formed by a modified...http://www.google.ca/patents/US3965909?utm_source=gb-gplus-sharePatent US3965909 - Angiographic catheter and method of manufacture
