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Ultrasonic surgical device, ultrasonic surgical system, and cavitation suppression method

A surgical device, ultrasonic technology, used in surgery, parts of surgical instruments, medical science, etc., can solve problems such as cavitation

Active Publication Date: 2015-07-29
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the living tissue is subjected to ultrasonic vibration, since the living tissue contains liquid, cavitation may occur

Method used

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  • Ultrasonic surgical device, ultrasonic surgical system, and cavitation suppression method
  • Ultrasonic surgical device, ultrasonic surgical system, and cavitation suppression method
  • Ultrasonic surgical device, ultrasonic surgical system, and cavitation suppression method

Examples

Experimental program
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Effect test

no. 1 approach

[0043] Figure 1 to Figure 7 Regarding the first embodiment of the present invention, figure 1 Showing the configuration of the ultrasonic surgical system according to the first embodiment of the present invention, figure 2 Showing the structure of the ultrasonic surgical apparatus of the first embodiment, image 3 shows the structure of the ultrasonic drive device, Figure 4A The frequency distribution of the current signal detected from the drive signal when cavitation occurs and when no cavitation occurs is shown. Here, the frequency distribution of the current signal is shown, but the same tendency applies to the voltage signal.

[0044] Figure 4B to Figure 4D An example of the filter characteristics of the filter circuit is shown, Figure 5 shows a configuration example of a filter circuit, Image 6 A method of treatment using an ultrasonic surgical device is shown, Figure 7 show inhibition Image 6 Inhibition method of cavitation generation level.

[0045] l...

no. 2 approach

[0174] Then refer to Figure 10 A second embodiment of the present invention will be described. Figure 10 The configuration of an ultrasonic surgical apparatus 21C according to the second embodiment of the present invention is shown. In the first embodiment, an apparatus and a method for automatically controlling cavitation elimination in the cavitation reduction control mode have been described.

[0175] On the other hand, this embodiment is configured to include a notification unit that notifies the user, the operator, of the generation level of cavitation by quantitatively displaying the level of occurrence of cavitation. The set value of the fixed part 24 is manually set so that it may be set to a desired cavitation level.

[0176] The ultrasonic surgical device 21C is configured to image 3 In the ultrasonic drive device 5 having the structure, an A / D conversion circuit 51 and an indicator 52 as a notification section are further provided, thereby constituting an ultr...

no. 3 approach

[0211] Next, refer to Figure 13 A third embodiment of the present invention will be described. In this embodiment, the control mode can be automatically set according to the handpiece 1 or the probe 1a actually used.

[0212] Figure 13 The configuration of an ultrasonic surgical apparatus 21D according to the third embodiment is shown. In this embodiment, a recognition unit for recognizing the handpiece 1 is provided as described below, and the control mode can be switched according to the recognition result.

[0213] Regarding this ultrasonic surgical device 21D, for example, in Figure 8 In the ultrasonic surgical device 21B, each hand piece 1 (in Figure 13 Where I=2) For example, ROMIh forming an identifier is embedded in, for example, the base end of the probe Ia, and the identifier is used to generate handpiece type information (also referred to as a type signal).

[0214] In addition, the ultrasonic drive device 5D includes an identification unit 66 having a comm...

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PUM

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Abstract

An ultrasound operation apparatus 21 includes an ultrasound transducer Ib; a drive section 5 that drives the ultrasound transducer Ib using a drive signal; a probe 2 that has a proximal end section in which the ultrasound transducer Ib is provided and a distal end section to which ultrasound vibrations are transmitted, and that performs treatment for living tissue by using ultrasound vibrations at the distal end section; a resonance frequency tracking section 37 that drives so as to cause ultrasound vibrations to be generated at a resonance frequency; a detection section 38 having a function of a filter section 39 that detects a frequency component signal of a frequency component other than a resonance frequency of the drive signal; and a cavitation suppression control section 40a that controls so as to suppress or eliminate cavitations according to the detection result.

Description

technical field [0001] The present invention relates to an ultrasonic surgical device, an ultrasonic surgical system, and a cavitation suppression method for performing surgery using ultrasonic vibration and suppressing cavitation caused by ultrasonic vibration. Background technique [0002] In recent years, ultrasonic surgical devices that operate on living tissue using ultrasonic vibrations generated by ultrasonic vibrators have been widely used. In addition, when the living tissue is subjected to ultrasonic vibration, since the living tissue contains liquid, cavitation may occur. This cavitation means that when the pressure of the liquid becomes lower than the vapor pressure determined by the temperature of the liquid, the liquid evaporates to generate bubbles of vapor. [0003] Therefore, when a density wave is generated by ultrasonic vibration, cavitation occurs with generation of negative pressure. [0004] Therefore, for example, Japanese Patent Application Laid-Ope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/00B06B1/02B06B1/06
CPCA61B2018/00595A61B2017/22008A61B2017/00154A61B18/1402A61B2017/22009A61B17/320092A61B2017/320093A61B2017/320095
Inventor 田中一惠泽田之彦本间聪
Owner OLYMPUS CORP
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