One-hand operable surgical instrument and operation method thereof

Abstract

The invention provides a one-hand operable surgical instrument and an operation method thereof. The surgical instrument includes an actuator, an intermediate connector and a controller which are connected with one another in sequence, wherein the actuator includes a nail bin component, an anvil component and a drive component; the controller includes a trigger mechanism, a triggering safety mechanism and an automatic reset mechanism. The surgical instrument has the automatic reset function; when the triggering safety mechanism is not opened and a doctor operates the trigger, the actuator of the surgical instrument clamps the tissue, and when the doctor releases the trigger, the actuator of the surgical instrument automatically resets and releases the clamped tissue; such a function of the surgical instrument not only provides convenience for the doctor to adjust the clamping position when using an anastomat to clamp the tissue, but also can improve the thickness uniformity of thick tissue when the tissue is finally clamped through repeatedly clamping the same position of the tissue by the doctor, so that tissue damage is reduced, and the fitting and cutting effects are improved.

Description

technical field [0001] The present invention relates to a surgical instrument, in particular to a surgical stapler, in particular to an improved surgical instrument, especially its controller and its operating method, which can realize specific functions by operating the instrument with one hand. Background technique [0002] The working principle of the surgical stapler is to clamp the tissue by closing two corresponding jaws (commonly known as the nail anvil assembly and the staple cartridge assembly), and then push the metal staples in the staple cartridge into shape to suture the tissue together. In some staplers, a cutting knife is also installed to cut off the stitched tissue. [0003] The stapler with the above functions includes an actuator, an intermediate connecting body and a controller. The actuator is composed of an anvil assembly, a staple cartridge assembly and a driving assembly. The nail anvil assembly includes a nail forming surface, and the nail forming...

AI Technical Summary

Problems solved by technology

In minimally invasive surgery, the controller of the instrument that is not under the control of the doctor may be displaced due to accidental touch during the operation. Controlled displacement; because the actuator at the distal end of the instrument is very close to the tissues and organs in the surgical target area, uncontrolled displacement of the actuator may damage nearby tissues and organs

When the instrument room is not operated temporarily, some doctors will withdraw the instrument from the body to avoid risks; in some cases, the instrument will be temporarily held by another doctor; sometimes, the doctor just releases the instrument and puts the distal end of the instrument Pressing against tissue or in gaps in tissue that either prolongs the procedure or risks damaging tissues and organs

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