A surgical instrument that can be operated with one hand

Abstract

The invention provides a surgical instrument capable of being operated by a single hand. The surgical instrument comprises an actuator, a middle connecting body and a controller. The actuator, the middle connecting body and the controller are sequentially connected. The actuator comprises a nail bin assembly, a nail anvil assembly and a driving assembly. The controller comprises a firing trigger mechanism, a firing safety mechanism and an automatic reset mechanism. The surgical instrument has an automatic reset function; when the firing safety mechanism is not started and a doctor operates a firing trigger, the actuator of the surgical instrument can clamp tissue; when the doctor release the firing trigger, the actuator of the surgical instrument can automatically reset and release the clamped tissue. Due to the function, the surgical instrument enables the doctor to adjust the position, clamped by an anastomat, of the tissue conveniently through a single handle, also enables the doctor to improve the uniformity of the tissue thickness when thick tissue is clamped finally in the mode of repeatedly clamping the same part of the tissue, reduces tissue damage, and accordingly the meshing 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, 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 the two corresponding jaws (commonly known as the 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 surface includes a plural...

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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