Medical devices use several different types of plastic tubes to enhance their performance. Some of the recent developments include shrink tubing, multilayer, and radio opaque tubings. Microbore and multilumen tubings have improved the performance of medical devices several fold. However all these tubes have one common problem of assembling when the tube is joined to a connector. To resolve this problem 'Bubble Tubing' has been developed. Medical tubing produced with an integral connector is referred to as 'Bubble or Taper Tubing'. A simplest design is a tube with a short section of large diameter that tapers to a longer section with small diameter. The end of the large diameter section acts as a connector to another device such as valve or fluid bag, while small diameter length is the functional part of the tube. There are more complex designs available for Bubble Tubing. However all these Bubble Tubings essentially replace moulded parts solvent bonded to a tube. The benefits of these new tubes are that they reduce labour cost for assembly work and eliminate the defective parts due to improper connectivity. Additional benefit arising out of this is cleanliness and smoother flow of fluid.