ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper reported a newly designed retrievable urethral stent used in treatment ofurethral strictures. The spiral urethral stent is made of Poly (l-lactide) (PLLA), adding bariumsulphate (BaSO4) to certain content, which can be displayed precisely under X-ray after implanted inbody. The stent was clinically tested in 32 patients with recurrent urethral strictures and was left in theurethra for 5 to 12 months. The response to the effect of the stent was assessed using symptom scores,peak flow rate (Qmax), residual urine volume (RUV), stent degradation, infection and outcome.During the treatment, there were not any inflammations found. The mechanical properties of the stentare almost the same as those of the PLLA stent without BaSO4. Improvements in patient symptomscore, mean Qmax and RUV were significant at the 18 month follow-up. The infection was notobserved. The stent was taken out easily through urethral forceps. In no patient was the stentobstructed by incrustation for up to 1.5 years
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.1331.pdf
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