An ultrasonic knife with a knife bar structure and its assembly method

Abstract

The invention discloses an ultrasonic knife with a novel cutter bar structure and a method for using the same, which belongs to the field of ultrasonic knife and includes a handle. The right side of the handle near the top is screwed with an ultrasonic transducer. The position on the left side close to the top is threadedly connected with a fixed sleeve, the interior of the fixed sleeve is provided with a knife rod, the position of the outer wall of the knife rod close to the left end is rotatably connected with a pliers head, and the position at the left end of the inside of the knife rod is movably plugged with a On the cutter head, the outer wall of the cutter rod is provided with a first thread near the right end, and the outer wall of the cutter rod is fixedly connected to the limit stability ring at a position close to the left of the first thread, and the outer wall of the limit stability ring is provided with a second screw thread. A thread groove, which can realize that when connecting the knife rod to the handle, no force is directly applied to the knife rod, so as to avoid damage to the position of the connection due to the thinner knife rod, resulting in the scrapping of the knife rod, which in turn leads to the loss of medical resources waste.

Description

technical field [0001] The invention relates to the field of ultrasonic scalpels, more specifically, to an ultrasonic scalpel with a novel cutter bar structure and a method for using the same. Background technique [0002] Ultrasonic scalpel uses ultrasonic energy to process soft tissue, cutting and coagulation are completed at the same time, and can ensure minimal lateral thermal damage to tissue. With the popularity of minimally invasive surgery, the ultrasonic scalpel has become a conventional surgical instrument. The ultrasonic scalpel is mainly composed of three parts: ultrasonic transducer, gun handle, and knife rod. The transducer converts the electric energy delivered by the host into ultrasonic resonance energy with a frequency of 55.5 kHz. The transducer is inserted into the tail end of the handle and connected with the cutter body in the cutter holder. The transducer transmits the ultrasonic vibration energy to the cutter head at the front end through the cutter ...

AI Technical Summary

Problems solved by technology

[0003] When the ultrasonic scalpel is not in use, its three components are placed separately. When in use, the knife rod and the gun handle are assembled together by fastening the knob or snapping. The knife bar can be disassembled by opening a variety of fixed bayonets and fastening knobs on the outer wall of the knife bar. However, since the knife bar of the ultrasonic scalpel is thin, it is easy to cause the knife to be damaged by applying force directly to the knife bar by using the fastening knob or clamping. The location of the rod connection is damaged, resulting in the scrapping of the cutter rod, which in turn causes a waste of medical resources

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