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Our Technologies

A Guide to Convexity

What is convexity? Why might you consider a convex ostomy product?

Convex product ;

Convexity is the outward curving of the wafer or skin barrier.

Convex ostomy wafer or skin barriers are designed to help reduce leakage. If you have been experiencing leakage, if your stoma is flush or retracted or if your abdomen tone has changed you might consider talking to your healthcare provider about convex ostomy products.1  

Convexity may help maintain a secure seal between the wafer or skin barrier and the skin.1   

Contact me+™ to learn about convex products

Understanding the 5 Characteristics of Convexity2

Ostomy skin barriers are available in different shapes, for different body and stoma types. Understanding the 5 key characteristics of convexity can help clinicians to be able to select a convex skin barrier that may work best for their patient.
 
  • The depth of the convex skin barrier Is defined as the measurement from the apex of the dome to the base.
  • Compressibility is the capacity of the convex dome to be displaced or flattened.
  • Flexibility is how easily the convex skin barrier can bend.
  • Tension location is the position in which the convex dome exerts downward and outward forces on the peristomal topography.
  • The slope is the angle from the base of the convex skin barrier to the apex of the dome.

Featured Convex Products

Esteem Body™ Soft Convex One-Piece Drainable Pouch - with window

Esteem Body™ Soft Convex One-Piece Drainable Pouch - with window

Esteem synergy® Adhesive Coupling Technology™ Convex Moldable Durahesive® Skin Barrier

Esteem synergy® Adhesive Coupling Technology™ Convex Moldable Durahesive® Skin Barrier

SUR-FIT Natura® Two-Piece Durahesive® Skin Barrier with CONVEX-IT® Technology

SUR-FIT Natura® Two-Piece Durahesive® Skin Barrier with CONVEX-IT® Technology

New from Convatec

Introducing, our new one-piece soft convex ostomy system with Leak Defense™. A combination of our gold-standard adhesives with a comprehensive soft convexity range, designed to adapt to the body for a secure, longer-lasting seal.
a cd on a surface ; This video provides an introduction to Convatec's new one-piece soft convex ostomy system.

Learn more about convexity and request product samples today.

Contact us to learn more

1. Colwell J, Stoia Davis J, Emodi K, Fellows J, Mahoney M, McDade B, Porten S, Raskin E, Sims T, Norman H, Kelly M, Gray, M. Use of a Convex Pouching System in the Postoperative Period: A National Consensus. Journal of Wound, Ostomy, and Continence Nursing. 2022;49(3):240-246. 

2. McNichol L, Cobb T, Depaifve Y, Quigley M, Smitka K,  Gray, M. Characteristics of Convex Skin Barriers and Clinical Application: Results of an International Consensus Panel. J Wound Ostomy Continence Nurs. 2021;48(6):524-532.

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