Single-time long-distance ultrasonic scissors with roll shearing function

Abstract

The invention discloses a pair of single-time long-distance ultrasonic scissors with a roll shearing function. The ultrasonic scissors comprise a first shaft member and a second shaft member, the first shaft member comprises a first handheld part and an elbow, the second shaft member comprises a second handheld part, a pipe sleeve and a waveguide rod, a transducer and a circuit board switch which are connected with a waveguide rod are arranged in the second handheld part. The pipe sleeve penetrates through the bent part of the elbow and is in pivot connection with the elbow. A tool bit of the waveguide rod extends out of the port of the pipe sleeve, extends forwards in an arc shape and is arranged in the pipe sleeve in a deflection mode, and the far end of the elbow is a working section which is consistent with the tool bit in radian and can be tightly attached to the tool bit. The length of the tool bit is increased, the tool bit extends in an arc shape, the overall strength of the tool bit is improved, the waveguide rod is arranged in a deflection mode, the inner cutting face forms an inclined structure, tight contact between the tool bit and the far end of the working section is guaranteed, and shearing smoothness and integrity are guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an ultrasonic scissors with a single long-distance shearing effect. Background technique [0002] The application of ultrasound in surgical operations is usually to convert and transmit ultrasonic energy into biological tissue, which generates thermal effects of mechanical vibrations to break tissue protein hydrogen bonds, protein denaturation and solidification, especially the use of mechanical and thermal energy generated by it to coagulate tissues, Hemostasis and cutting etc. In surgical instruments, the ultrasonic generator (ultrasonic equipment host) generates high-frequency electric energy, and the high-frequency electric energy is converted into mechanical vibration energy through the transducer using piezoelectric material or electromagnetic compression material, and the vibration energy is amplified Transfer to the end of action (or the tip of the tool holde...

AI Technical Summary

Problems solved by technology

[0004] In the existing ultrasonic scissors, the length of the operating end is generally short, and the cutting distance at one time is relatively short, which brings great inconvenience to the operation, and if it is simply lengthened, the shearing strength will be insufficient because the cutting working end is relatively slender. , cannot be precisely cut

In addition, the existing sleeve is directly sleeved on the outside of the waveguide, and the pivot angle between the sleeve and the elbow is small, so that the opening angle of the operating end is limited, which cannot adapt to thicker or more complex tissue structures, giving Operation brings great inconvenience

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