A balloon catheter having a micromanometer connected to the catheter and also a fluid-filled transducer system for adjusting micromanometer pressure measurements. The metallic shell includes a number of peripheral walls and a soldering tab extending therefrom. The sediment is then subjected to UV excitation. The fasteners of this invention may also be provided with spring members of intricate and critical structure, which despite easy insertion of the fastener into a slot of a secondary object, the removal force is greatly increased.