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The Chex Family of Staplers and there intended uses are as follows: 1. Single Use Curved Intraluminal Circular Stapler The CHEX™ Single Use Curved Intraluminal Circular Stapler is used throughout the alimentary tract for the creation of end-to-end, end-to-side and side-to-side anastomoses in both open and laparoscopic techniques. 2. Circular Stapler for Rectal Prolapse and Hemorrhoid The CHEX™ Single Use Circular Stapler for Rectal Prolapse and Hemorrhoids is a Circular Stapler product, with accessories, that has application for general surgical treatment of haemorrhoids and anorectal wall defects by means of transanal stapling and resection of mucosal and musculo-mucosal tissue resulting in occlusion of haemorrhoidal inflow, restoring the haemorrhoidal tissue to its normal physiological position. 3. Single Use Reloadable Linear Stapler The CHEX™ Single Use Reloadable Linear Stapler is used in the resection or transaction of tissue for abdominal, gynecological, pediatric and thoracic surgical procedures. 4. Single Use Reloadable Linear Cutter Stapler The CHEX™ Single Use Reloadable Linear Cutter Stapler has application in abdominal, gynecological, thoracic and pediatric surgery transaction, resection, and the creation of anastomoses.

The Chex™ Staplers were designed in reference to the general principles of surgical staplers. Each stapler/ instrument is activated by squeezing the handle firmly as far as it will go. Specifics for each stapler include: The Chex™ Single Use Curved Intraluminal Circular Stapler places a circular, double staqqered row of titanium staples. Immediately after staple formation, the instrument's knife blade resects the excess tissue, creating a circular anastomosis. The diameter of the staple line is determined by the selection of the 21mm, 25mm, 28mm, or 32mm stapler. The Chex™ Single Use Circular Stapler for Rectal Prolapse and Hemorrhoids places two circular peripheral lines of alternating and overlapping staples, thereby sealing off the rectal mucosa above the anal canal. The central circular cutting blade cuts the surplus tissue after the sealing to reconstruct the rectal mucosa. The diameter of the staple line is determined by the selection of the 32mm or 34mm stapler. The Chex™ Disposable Reloadable Linear Stapler places a double staggered row of titanium staples used for mechanical suturing and closure of tissue, prior to the removal of excess tissue. The Linear Stapler is available in 30mm, 45mm, 60mm, and 90mm line lengths for use in various applications. The instrument may be reloaded during a single procedure but cannot be reloaded more than seven times for a maximum of eight firings per instrument. The Chex™ Linear Cutter Disposable Reloadable Stapler delivers two doubled staggered rows of titanium staples and anastomoses the internal tissues and incisions during surgical procedures. The Linear Cutter stapler is available in three staple line lengths (61mm, 81mm, or 100mm). The instrument may be reloaded during a single procedure but cannot be reloaded more than seven times for a maximum of eight firings per instrument. The use of the instrument with stable buttressing materials, or across a previous staple line, may reduce the number of firings.