Ultrasonic scalpel

Abstract

The invention discloses an ultrasonic scalpel. The ultrasonic scalpel comprises a handle, a middle rod, a rear bending connecting part, a rigid cutter bar, a cutter head and a front bending connecting part, wherein the rear bending connecting part is arranged between the handle and the middle rod; the rigid cutter bar is connected with the middle rod; the front bending connecting part is arranged between the rigid cutter bar and the cutter head; a front bending part and a rear bending part comprise a plurality of joint sheets and four transmission steel wires for connecting the plurality of joint sheets in series; the middle rod is provided with an accommodating cavity; a piezoelectric transducer is arranged in the accommodating cavity; a tail mass block is positioned at the rear end of the piezoelectric transducer; the middle rod is connected with the rigid cutter rod through an ultrasonic amplifier; and a locking device for maintaining the bending angle after the front bending connecting part and the rear bending connecting part are bent is arranged on the middle rod. According to the ultrasonic scalpel, the tail mass block is arranged on the rear part of the piezoelectric transducer, so the defect of ultrasonic energy attenuation caused by the bending parts is overcome and the cutting effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of scalpels, and more specifically relates to an ultrasonic scalpel. Background technique [0002] The traditional scalpel is composed of a handle and a blade. During the operation, a sharp blade is used to cut human cells and tissues. The blades are all disposable. The traditional scalpel is simple in structure, cheap, and widely used. However, the traditional scalpel When cutting human cells and tissues, the cutting effect is poor. In order to achieve the cutting effect, it is often necessary to perform multiple cuts, which is not conducive to wound healing. Moreover, the amount of bleeding during the cutting process is relatively large, so there is a surgical electric knife. Surgical electric knife The knife will apply a high-frequency current to the human body, and the Joule heat generated by the load or contact resistance at this time will instantly heat the cell tissue to vaporize it, and finally cut t...

AI Technical Summary

Problems solved by technology

[0002] The traditional scalpel is composed of a handle and a blade. During the operation, a sharp blade is used to cut human cells and tissues. The blades are all disposable. The traditional scalpel is simple in structure, cheap, and widely used. However, the traditional scalpel When cutting human cells and tissues, the cutting effect is poor. In order to achieve the cutting effect, it is often necessary to perform multiple cuts, which is not conducive to wound healing. Moreover, the amount of bleeding during the cutting process is relatively large, so there is a surgical electric knife. Surgical electric knife The knife will apply a high-frequency current to the human body, and the Joule heat generated by the load or contact resistance at this time will instantly heat the cell tissue to vaporize it, and finally cut the cell tissue. At the same time, it can evaporate the cell water and solidify the protein. Re-close and solidify the cut tissue. For example, the Chinese utility model patent No. ZL200820233189.9 discloses an improved surgical electric knife, which mainly includes a handle, a knife head, a suction tube clip, a knife handle and a knife head. Flexible and fixed connection, a suction pipe clamp is set on the upper middle part of the handle, and the two are fixedly connected; since the suction pipe clamp is set on the upper middle part of the handle, the suction pipe can be directly clamped on the suction pipe clamp, realizing one-person The operation and smoke inhalation are performed simultaneously, which improves the safety of the operation, reduces medical disputes, and has the advantages of simple structure, convenient use, and low cost.

However, when the surgical electric knife cuts cells and tissues, eschar is produced, which is not conducive to the recovery of the wound. At the same time, smoke will be generated during the operation. Even if it is treated by smoking, it cannot be completely eliminated, and it is easy to block the doctor's sight.

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