Basket-type grasping forceps

Abstract

The stone retrieval basket type holding pliers of the present invention comprises: a sheath; a main body, which has a distal end and a proximal end, and penetrates through the sheath; and an operating part, which is fixed to the sheath and installed with a The proximal end of the main body. The main body includes: a stone extraction basket, which is provided on the distal side of the main body, has a substantially spindle-shaped shape, and can hold foreign objects; a first wire, which is provided on the proximal side of the stone extraction basket. , and fixed on the stone retrieval basket; and a removal mechanism, which is installed on the stone retrieval basket, for moving the foreign matter in the stone retrieval basket. The stone extraction basket part includes: a plurality of stone extraction basket wires; and a fixing member for binding and fixing the plurality of stone extraction basket wires. The removal mechanism includes: a sliding sleeve, which is arranged on the distal side of the stone retrieval basket, through which the plurality of stone retrieval basket wires penetrate, and the sliding sleeve can move forward and backward freely relative to the plurality of stone retrieval basket wires; And the second wire, the distal end of which is fixed to the sliding sleeve, and can make the sliding sleeve advance and retreat relative to the stone retrieval basket wire.

Description

technical field [0001] The invention relates to a stone basket-type holding pliers. [0002] this application claims priority based on Japanese Patent Application No. 2013-233973 for which it applied in Japan on November 12, 2013, and uses the content here. Background technique [0003] Conventionally, there are known stone-retrieving basket-type grasping forceps that are inserted into channels in the body such as bile ducts and are used to recover foreign bodies such as stones (for example, refer to Patent Documents 1, 2, and 3). [0004] The stone retrieval basket type holding pliers has a structure that uses multiple wires to hold foreign objects. Therefore, when a large foreign object is to be recovered, sometimes the stone extraction basket cannot be pulled out from the pipeline while the foreign object is held. For example, if the foreign matter cannot be removed between the multiple lines described in Patent Documents 1, 2, and 3, the stone basket cannot be pulled ou...

AI Technical Summary

Problems solved by technology

[0004] The stone retrieval basket type holding pliers has a structure that uses multiple wires to hold foreign objects, so in the case of recovering a large foreign object, sometimes the stone retrieval basket cannot be pulled out from the pipeline while holding the foreign objects

For example, if the foreign matter cannot be removed from between the multiple lines described in Patent Documents 1, 2, and 3, the stone extraction basket cannot be pulled out from the pipeline.

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