ESD Knife

An ESD knife is the electrosurgical knife used for endoscopic submucosal dissection (ESD), driven by a high-frequency generator. ESD is a way of removing early neoplasia of the stomach, esophagus or colorectum in one piece (en bloc) by dissecting the submucosal plane. In this context ESD has nothing to do with electrostatic discharge.

This page lists marking the resection margin around the lesion before the incision, the circumferential mucosal incision that opens the plane, and dissection of the submucosal plane under a lesion that a polypectomy snare cannot take whole. Marking, incision and dissection are done with one device.

In EMR the lesion is lifted first, then taken with a polypectomy snare loop; a lesion of up to about 20 mm is usually taken in one piece and a larger one piecemeal. In ESD the submucosal plane is dissected with a knife, which lets a lesion that a polypectomy snare cannot take whole come out in one piece. The choice of technique is the physician's.

The ESD category on this site lists the bipolar system, the ESD knife and the traction clip. The hemoclip closes the resection bed, and Easy Collect brings the resected specimen out. The unit decides its own list.

Dual knife, IT knife and hook knife are well-known names for types of ESD knife, and they describe different tip designs. The tip type, the sizes and the maker of the ESD knife on this page are not published yet, and the page is marked coming soon. The knife works with the high-frequency generator the unit already has. Which knife suits a lesion is the physician's decision.

Not yet. The ESD knife is not available for order in Türkiye, so this page carries no list price either. We can share the product documentation; write to us with the button on this page.