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An ultrasonic scalpel with a replaceable head

A scalpel and blade technology, applied in the field of ultrasonic scalpel, can solve the problems that the ultrasonic scalpel cannot be thoroughly cleaned and disinfected, the knife body cannot be cleaned and disinfected, and the risk of cross-infection increases, so as to reduce the link of manual participation, The effect of reducing processing labor intensity and processing cost and shortening processing time

Active Publication Date: 2021-09-03
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in use, after completing one or even several operations, the structure and performance of the ultrasonic knife are still intact, but it is impossible to thoroughly clean and disinfect the inside of the knife body
Therefore, the ultrasonic scalpel produced in the early stage can only be used as a one-time surgical instrument according to the regulations, and should be discarded after the operation is completed, but its price is high, and there is also a huge potential medical ethics risk: In order to seek economic benefits, the used ultrasonic scalpel is used privately. It is inevitable that the risk of cross-infection will increase if the knife is not thoroughly cleaned and disinfected before being used on the next patient.
[0005] In order to reduce the risk of cross-infection, the invention patent with the application number CN201410023651.2 proposes an ultrasonic scalpel blade with a replaceable head, but the connection between the outer rod of the blade head and the outer rod of the blade is limited by balls When disassembling, use the thumb and forefinger to pull the knife rod sliding sleeve back, and rotate the knife head counterclockwise to the limit, and pull the spring sliding sleeve with the right hand, so that the knife head can be separated from the ultrasonic knife bar. The installation is complicated when connecting , the connection is unreliable

Method used

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  • An ultrasonic scalpel with a replaceable head

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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, the present invention provides an ultrasonic scalpel with a replaceable cutter head, the connection structure between the cutter head rod group and the cutter rod group includes a mounting box 5, a driving device 1, a cylindrical cam 3, a connecting rod 2. Arc gear plate 4, double-sided rack 6, nut sleeve 9 and spring sleeve 8.

[0021] Wherein, the installation box 5 is fixed on the handle portion of the ultrasonic scalpel near the end of the knife head by means of threaded connection or slotted connection.

[0022] Wherein, the inner bottom surface of the installation box 5 is fixedly connected with a stepping motor, and the stepping motor is electrically connected with the power supply and the control switch arranged in the hand-held part through a control switch, and the output shaft of the stepping motor is connected with the cylindrical cam 3 through a shaft coupling. One end of the rotating shaft is connected, and the other end of the ...

Embodiment 2

[0029] As a further optimization scheme based on Embodiment 1, a detection device for the clamping force of the spring sleeve is added in this embodiment, so as to reduce potential safety hazards caused by too tight or too loose clamping force and improve connection reliability.

[0030] Specifically, a force measuring device is embedded on the surface of the spring sleeve 8 in contact with the outer rod of the cutter head, and the force measuring device is electrically connected to the controller, and the controller is electrically connected to the power supply and the control switch arranged on the hand-held part respectively. .

[0031] In use, you only need to press the control switch to start the stepping motor, and the stepping motor can drive the cylindrical cam 3 to rotate synchronously, and the slider in the spiral chute on the cylindrical cam 3 moves along the spiral chute to drive The connecting rod 2 moves synchronously. In order to adapt to the movement of the con...

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Abstract

The invention relates to an ultrasonic scalpel with a replaceable cutter head, which belongs to the technical field of medical surgical instruments and solves the problems of complicated installation and unreliable connection. Box, the drive device is fixed on the bottom surface of the installation box, the output shaft of the drive device is connected with the shaft of the cylindrical cam, the other end of the shaft of the cylindrical cam is connected with the support, and the support is fixed on the bottom surface of the installation box; the spiral on the cylindrical cam The slider 1 is clamped in the chute, and the slider 1 can slide in the spiral chute. The slider 1 is hinged with a connecting rod, and the end of the connecting rod away from the slider 1 is hinged with the arc-shaped toothed disc. The teeth on one side of the face rack mesh, and the teeth on the side of the double-sided rack facing away from the arc-shaped toothed plate mesh with the nut sleeve. A coaxial spring sleeve is arranged inside the nut sleeve, and the spring sleeve is fixed on the outer tube of the tool bar away from the At one end of the handle part of the ultrasonic scalpel, the nut sleeve is threadedly connected with the outer pipe of the knife rod. The invention has simple operation and high reliability.

Description

technical field [0001] The invention belongs to the technical field of medical surgical instruments, and in particular relates to an ultrasonic scalpel with a replaceable cutter head. Background technique [0002] Ultrasonic scalpels are mostly used in minimally invasive surgery. Ultrasonic scalpels are a new technology surgical instrument that uses ultrasonic energy to treat soft tissues. It can complete cutting and coagulation at the same time, and can ensure minimal tissue lateral heat. damage. [0003] The popularity of ultrasonic scalpels has brought good news to patients. The structure of ultrasonic scalpels probably includes three parts: ultrasonic transducers, gun handles, and knife rod components. Among them, the ultrasonic transducer converts the electrical energy delivered by the host into ultrasonic resonance energy with a frequency of 55.5 kHz, and the ultrasonic transducer is inserted into the tail end of the gun-type handle and connected to the cutter body in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/32A61B90/00
CPCA61B17/320068A61B2017/320072A61B90/06A61B2017/320071A61B2017/320074A61B2017/320082
Inventor 杨志波王蔚于向涛郭强刘石安张世宇何东钰张钰奇孙旺刘爱菊
Owner HENAN POLYTECHNIC UNIV