Deflection mechanism and surgical instrument

Abstract

The invention provides a deflection mechanism and a surgical instrument, and relates to the technical field of medical instruments.The deflection mechanism comprises a machine body, a first deflection assembly, a second deflection assembly and a locking assembly, and a first driving wheel of the first deflection assembly is arranged on the end face of one side of the machine body and suitable for driving a first driven part of a driven mechanism to rotate; a second driving wheel of the second deflection assembly is arranged on the end face of the other opposite side of the machine body and is suitable for driving a second driven part of the driven mechanism to rotate; a locking hole structure is arranged on the first driving wheel, and a locking piece of the locking assembly is arranged on the machine body and suitable for penetrating through the locking hole structure to lock or unlock the first driving wheel. When the locking piece locks the first driving wheel, the clamping or shearing function of the driven mechanism can be achieved, when the locking piece unlocks the first driving wheel, the first driving wheel and the second driving wheel can drive the first driven piece and the second driven piece to rotate synchronously, and the deflection function of the surgical instrument is achieved; and the surgical operation can be conveniently carried out under the condition of different angles.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a yaw mechanism and a surgical instrument. Background technique [0002] Due to the large wound and slow recovery of traditional open surgery, minimally invasive surgery such as laparoscopy is more and more used in clinical treatment. When performing minimally invasive surgery such as laparoscopy on patients, it is usually necessary to use a large number of various tweezers or scissors and other surgical instruments that can be opened and closed. [0003] Existing surgical instruments such as tweezers or scissors usually only have a single clamping or cutting function. Even though some products may be designed with a rotary function, there are still many angles that are inconvenient to operate during surgery, requiring the operator's arm The operation can only be realized by adjusting the angle in a wide range, which makes it difficult for the operator to perform the...

AI Technical Summary

Problems solved by technology

[0003] Existing surgical instruments such as tweezers or scissors usually only have a single clamping or cutting function. Even though some products may be designed with a rotary function, there are still many angles that are inconvenient to operate during surgery, requiring the operator's arm The operation can only be realized by adjusting the angle in a wide range, which makes it difficult for the operator to perform surgery in a comfortable and conventional posture, which is not only laborious and inefficient, but also difficult to perform and easily causes mistakes

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