WallFlex® Colonic Stent

Product Information

Treatment - Stents offer an alternative treatment option for palliation and are associated with low morbidity and mortality rates as compared to colostomy.^6,8 Moreover, the cost-effectiveness of stenting has been reported in various literature.^6,7,8,9,10

Stent Construction - Expertise in combining stent materials has resulted in a product conferring the benefits of Nitinol with the radial force and visibility characteristics of Elgiloy.¹ (WALLSTENT® Endoprosthesis)

Decompression - Dedicated flared stent design available in large diameters, is intended to improve obstruction relief and aid in reducing the risk of migration.^2,3,4,5,6

Access - Constructed as a highly trackable 10Fr TTS/OTW delivery system, enabling access and passage even in anatomical areas of high tortuosity.¹

Technique - TTS/OTW delivery system is designed to gain procedural support and control during access, manipulation and deployment.¹

Repositioning - The delivery system is created to allow physicians to recapture and reposition the stent up to approximately 70% of stent deployment.¹

Device Illustration

Device Highlights

1. Proximal End
2. Flared Distal End
3. TTS/OTW Delivery System

Additional Information

¹ Data on File Boston Scientific Corporation: Internal Testings and Limited Launch Results
² A practical guide for choosing an expandable metal stent for GI malignancies: is a stent by any other name still a stent, T. H. Baron; Gastrointestinal Endoscopy vol.54, no2, 2001
³ Palliative treatment of malignant colorectal strictures with metallic stents, L. Paul et al.; Cardiovascular and Interventional Cardiology, 22. 1999
⁴ Gastrointestinal Stenting, Zollikoffer et al. European Radiology 10, 2000
⁵ Metal Stents for decompression of acute colorectal obstruction, A. Repici; UEGW 2001
⁶ Systematic review of the efficacy and safety of colorectal stents, U.P. Khot et al.; British Journal of Surgery, 2002-89
⁷ Self-Expanding Metal Stents in the Treatment of Malignant Colorectal Obstructions, S. Meisner; Business Briefing, European Pharmacotherapy 2005
⁸ Clinical Evidence on Colorectal Stenting. Systematic Literature Review, M. Parker, E. Tejero, L. Petruzziello; Boston Scientific Corporation, 2004
⁹ Acute colonic obstruction: clinical aspects and cost effectiveness of preoperative and palliative treatment with self-expanding metallic stents: a preliminary report, C. A. Binkert et al.; Radiology 1998
¹⁰ The cost effectiveness of self-expanding metal stents in the management of malignant left sided large bowel obstruction, H. S. Osman; Colorectal Disease, 2000