Endoscopic foreign body retrieval dilation device

Abstract

The application belongs to the technical field of medical devices, and provides an endoscopic foreign body extraction and expansion device. The application comprises a pair of expansion assemblies and a limiting assembly. The expansion assemblies are located on both sides of the clamping surface of a foreign body forceps, and are used to expand the inner wall of a digestive organ along the long axis direction of the foreign body. The limiting assembly is located outside the expansion assemblies, and limits the expansion direction of the expansion assemblies along the short axis direction of the foreign body. The cross section of the limiting assembly is a hollow H-shaped structure, and the H-shaped structure is filled with the expansion assemblies. The ends of the transverse part of the H-shaped structure are provided with sliding members, and the inside of the H-shaped structure is provided with sliding grooves. The sliding members can slide along the extension direction of the transverse part of the H-shaped structure along with the expansion of the expansion assemblies. The vertical part of the H-shaped structure is provided with an expansion through hole, and the expansion through hole is a through hole parallel to the extension direction of the transverse part of the H-shaped structure. The above arrangement realizes directional expansion along the long axis of the foreign body, and reduces the risk of tissue damage in the operation of extracting the impacted foreign body in the digestive tract.

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