the surface of the processed tubular member.
The processed tubular member is then exposed to a electrochemical etching process which removes uncovered metal from the tubular member, resulting in the final tubular member or stent configuration. Since the tubular member has not been subjected to any process such as additional heat treatments, welding/brazing or laser cutting, the finished stent will maintain the optimized stress-strain characteristics obtained in the initial heat-treatment process.
The stent embodying features of the invention can be readily delivered to the desired lumenal location by mounting it on an expandable member of a delivery catheter, for example, a balloon or mechanical dilatation device, and passing the catheter/stent assembly through the body lumen to the site of deployment.
Other features and advantages of the present invention will become moreplunger, while the capacity of the right one is constant, corresponding to the main TENG and the buffer capacitor, respectively. A liquid working medium is injected into the vessels, similar to the charge injection by the pump TENG. In the first state of the working process, the rightward movement of the plunger by external agitations reduces the capacity of the left vessel, inducing higher liquid level and potential for the medium inside. The potential can then drive the flow of medium to the right vessel through the turbine, which acts as a load to convert the energy into rotation energy and output power. In the second state, the leftward motion of the plunger will increase the capacity of the left vessel, lowering the potential. Thus, the working medium