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Treatment device

A therapeutic equipment, ultrasonic technology, applied in the fields of therapy, ultrasonic therapy, medical science, etc., can solve the problems of easy deflection of the probe, reduced visibility of the tip of the probe, changes in the vibration characteristics of the probe, etc.

Active Publication Date: 2015-08-19
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the cross-sectional area is reduced, the strength of the probe decreases, and the probe tends to bend when grasping living tissue
As a result, the visibility of the tip of the probe may decrease, or the vibration characteristics of the probe may change

Method used

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no. 1 Embodiment approach

[0024] A first embodiment of the present invention will be described with reference to the drawings. The outline of the processing device 10 of this embodiment is shown in figure 1 middle. As shown in the figure, the processing device 10 includes a processing unit 100 , a shaft 190 , an operation unit 200 , and a power supply unit 300 . For convenience of description below, the treatment part 100 side is referred to as the distal end side, and the operation part 200 side is referred to as the proximal end side. exist figure 1 In , the processing part 100, the shaft 190, and the operating part 200 are shown in side views. A top view of the treatment unit 100, the shaft 190 and the operation unit 200 is shown in figure 2 middle.

[0025] The treatment device 10 of this embodiment is used, for example, in endoscopic surgery. The treatment part 100 and the shaft 190 are inserted into the abdominal cavity, for example, through a small hole cut in the abdominal wall of the su...

no. 2 Embodiment approach

[0062] A second embodiment of the present invention will be described. Here, differences from the first embodiment will be described, and the same parts will be given the same reference numerals and their descriptions will be omitted. The shapes of the ultrasonic transmission member 135 and the like in this embodiment are shown in Figure 13 and Figure 14 middle. Figure 13 It is a perspective view showing the shape of the ultrasonic transmission member 135, etc., Figure 14 It is a front view of the ultrasonic transmission member 135 and the like viewed from the distal end side. As shown in these figures, the probe 140 of the treatment part of this embodiment is formed in the shape of a square prism. Here, will Figure 13 The length of the probe 140 in the load direction indicated by the arrow in , is defined as the height h, and the length in the direction perpendicular to the load direction and the central axis is defined as the width b. At this time, the section mom...

no. 3 Embodiment approach

[0066] A third embodiment of the present invention will be described. Here, differences from the first embodiment will be described, and the same parts will be given the same reference numerals and their descriptions will be omitted. The shapes of the ultrasonic transmission member 135 and the like in this embodiment are shown in Figure 15 and Figure 16 middle. Figure 15 It is a perspective view showing the shape of the ultrasonic transmission member 135, etc., Figure 16 It is a front view of the ultrasonic transmission member 135 and the like viewed from the distal end side. As shown in these figures, the probe 140 serving as the treatment unit in this embodiment is formed in a hollow cylindrical shape. In addition, in the present embodiment, the transmission part is also formed in a cylindrical shape.

[0067] Let the outer diameter of the cylindrical shape of the treatment part be D 1 , set the inner diameter to d 1 . In addition, let the outer diameter of the t...

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PUM

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Abstract

A treatment device includes a treatment portion, a transmission portion and a moment shift portion. The treatment portion transmits ultrasonic vibration. The length of the treatment portion is shorter than ¼ of a wavelength of the ultrasonic vibration. The transmission portion has one end at a node position where the first generated node from the distal end of the treatment portion appears, and is located closer to a proximal side than the node position. The length of the transmission portion is ¼ of the wavelength. The moment shift portion is located between the treatment portion and the transmission portion. An average of I1 / A12 is greater than an average of I2 / A22, where I1 is the second moment of area and A1 is a sectional area in the treatment portion, and I2 is the second moment of area and A2 is a sectional area in the transmission portion.

Description

technical field [0001] The invention relates to a treatment device. Background technique [0002] In general, there is known an ultrasonic treatment tool that uses a probe that transmits ultrasonic vibrations and a holding member to hold living tissue, and the ultrasonic treatment tool is used to coagulate or incise the held living tissue by using the ultrasonic vibration of the probe. . An example of such an ultrasonic treatment instrument is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-113922. Japanese Patent Application Laid-Open No. 11-113922 discloses a technique for increasing the strength of the probe by increasing the value of the section modulus of the probe at the base end side compared to the distal end side. [0003] In an ultrasonic treatment instrument, in order to amplify ultrasonic vibrations of a probe serving as an ultrasonic transmission part, it is necessary to reduce the cross-sectional area near the tip of the probe relative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/00
CPCA61B18/1445A61B17/320092A61B2018/0063A61N2007/0004A61N7/00A61B2018/00589A61B2017/320093A61B2017/320095A61B2017/320071
Inventor 山田将志山田典弘
Owner OLYMPUS CORP
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