| abstract |
The present invention belongs to the field of endoscopes and provides a multifunctional high-frequency electric knife, which comprises a processing portion, a sheath portion and an operating portion. The processing portion is provided with an electrode and a clip component; the electrode can be used for tissue cutting and liquid injection; the electrode is provided with a hollow tubular portion; the electrode can be pushed out or retracted relative to the far end of the sheath portion; the clip component is used for stopping bleeding of tissues, and the clip component can be pushed out or retracted relative to the far end of the sheath portion; the sheath portion is disposed at the near end of the processing portion and comprises a hollow pull rod and a spring tube; and the operating portion is located at the near end of the sheath portion and comprises a high-frequency joint connected to the electrode by means of a lead wire, a component that drives, by means of an operating line, the electrode to move, a member that drives the hollow pull rod to move, and a liquid inlet that allows liquid to flow to the hollow tubular portion of the electrode. The liquid can pass through the hollow tubular portion of the electrode to perform submucosal injection, such that the mucosal tissue is swelled, and a bleeding site can also be cleaned. |