Closing devices for surgical instruments and surgical instruments

Abstract

The invention relates to the technical field of medical equipment, and discloses a closing device and a surgical operating instrument. The closing device comprises a closing sleeve, a gun barrel and a connecting rod assembly, wherein the closing sleeve sleeves the near end of an end actuator of the surgical operating instrument; the gun barrel has a tubular structure; one end of the far side of the gun barrel is in transmission connection with one end of the near side of the closing sleeve; the connecting rod assembly is in transmission connection with one end of the near side of the gun barrel and a driving piece; and the connecting rod assembly is driven by the driving piece and then drives the gun barrel to move in the direction of an axial lead of a slender body of the surgical operating instrument. The closing device drives a nail anvil and a nail box in the end actuator to open and close, stress of a flexible percussion piece is reduced, and the safety of the surgical operating instrument is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a closing device of a surgical instrument and the surgical instrument. Background technique [0002] Surgical instruments under the laparoscope have less trauma to the patient, and the surgical effect is good, which can greatly reduce the pain caused to the surgical patient. [0003] Take the cutting and stapler as an example, such as figure 1 As shown, the cutting and stapler includes an operating handle, an elongated body 01, and an end effector 04; wherein, the end effector 04 includes an anvil 042 and a nail box 041, and the action of the driving member 03 controlled by the operating handle can control the closing device. The flexible firing member 02 drives the anvil 042 of the end effector 04 to close with the nail magazine 041 to realize the clamping of the tissue. [0004] Such as figure 2 As shown, the far side of the flexible firing member 02 (the side c...

AI Technical Summary

Problems solved by technology

[0006] However, the flexible firing part 02 in the cutting and stapler is formed by stacking and welding multiple pieces of rigid sheets, and the flexible firing part 02 is subjected to pressure when the opening and closing of the end effector 04 and cutting and suturing are realized through the flexible firing part 02. The force of the action is very large, it is very easy to make the multi-piece rigid sheets that make up the flexible firing part 02 spread out, and even cause the flexible firing part 02 to be twisted, etc., causing the anvil 042 and the nail box 041 to not close in place, so that the cutter and stapler less safe to use

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