Advanced Mechanical Purse-String Suture Device for Hollow Viscera Anastomosis / Dispositivo de sutura de jareta para vísceras huecas

This patented device resolves these clinical challenges by integrating a circular stapler mechanism directly with a suture thread. The system features a tubular sheath containing a stapling head and a separate anvil with a central mast.During the procedure, the anvil is separated from the stapling head to create a working space. A suture thread is looped around the viscus and tightened against the anvil's mast, gathering and folding the tissue. The anvil is then pulled close to the stapling head, compressing the folded tissue, and the stapler is fired. The staples drive through the double-layered tissue and bend securely against the anvil, locking the purse-string fold and thread firmly in place.

Key Advantages & FeaturesSecure & Vascularized Closure: Unlike linear stapling methods, this device creates a uniform, well-vascularized purse-string tissue border that is securely locked by closed staples, reducing the risk of post-operative leaks.Knotless "Pusher Stick" System: The device includes specialized projections and recesses that allow the surgeon to use a pusher stick to tighten the thread without needing to tie a knot.

Incision-Free Specimen Extraction: Because the thread can be tightened without knotting, the purse-string suture can be temporarily opened and closed.

This allows surgeons to extract the resected, diseased portion of the viscus directly through the hollow organ (e.g., transanally), potentially avoiding the need for an additional abdominal incision during laparoscopic procedures.

Versatile Compatibility: The mechanism can be manufactured as a standalone instrument or designed to securely couple with conventional circular anastomosis staplers currently on the market.

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