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Ultrasonic transducer for ultrasonic surgical instrument and ultrasonic surgical instrument

A technology for ultrasonic transducers and surgical instruments, applied in the field of medical instruments, can solve the problems of large heat generation, large strain energy, affecting the working efficiency of ultrasonic transducers, etc.

Inactive Publication Date: 2020-08-25
盈甲医疗器械制造(上海)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a transducer device for ultrasonic surgical cutting instruments and the ultrasonic surgical instrument thereof, to at least solve the problem of large strain energy and large calorific value of the ceramic sheet near the node of the transducer in the prior art, which affects the overall effect on ultrasonic waves. Technical issues of transducer working efficiency and service life

Method used

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  • Ultrasonic transducer for ultrasonic surgical instrument and ultrasonic surgical instrument
  • Ultrasonic transducer for ultrasonic surgical instrument and ultrasonic surgical instrument
  • Ultrasonic transducer for ultrasonic surgical instrument and ultrasonic surgical instrument

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Embodiment Construction

[0032] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present invention, rather than to limit the scope of the present invention in any way. Rather, these embodiments are provided to make the disclosure of this application more thorough and complete, and to fully convey the scope of the disclosure of this application to those skilled in the art.

[0033] Examples of the present invention Figure 4 to Figure 10 shown.

[0034] The present invention provides an ultrasonic transducer for an ultrasonic surgical instrument. The ultrasonic transducer includes a node and a piezoelectric crystal stack. The piezoelectric crystal stack includes a plurality of piezoelectric ceramic sheets. There are at least two nodes. The transducer includes a heat conduction block, the above ...

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PUM

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Abstract

The invention provides an ultrasonic transducer for an ultrasonic surgical instrument. The ultrasonic transducer for the ultrasonic surgical instrument comprises at least two nodes and piezoelectric crystal piles. Each piezoelectric crystal pile comprises multiple piezoelectric ceramic sheets. The ultrasonic transducer comprises a heat conducting block. The heat conducting block uses the nodes asthe center. The two sides of the heat conducting block are both provided with the piezoelectric crystal piles. The heat conducting block is in contact connection with the piezoelectric ceramic sheets.The heat conducting block is provided with end faces. The end faces of the heat conducting block are in contact connection with the piezoelectric ceramic sheets. The damping coefficient of the heat conducting block is smaller than that of the piezoelectric ceramic sheets. By means of the additionally arranged heat conducting block structure, especially a better-effect heat conducting block structure obtained after structure change, the heat emission amount of the piezoelectric ceramic sheets close to the nodes is reduced, the heat emission amount of all the ceramic sheets of the piezoelectriccrystal piles is balanced, heat conduction and heat dissipation are conducted on the piezoelectric crystal piles at the same time, the ageing speed of the piezoelectric crystal piles is reduced, theoverall work stability of the ultrasonic transducer is improved, and the overall service life of the ultrasonic transducer is prolonged.

Description

technical field [0001] The present invention relates to the field of biomedical medical instruments, and further relates to ultrasonic surgical instruments, in particular to an ultrasonic transducer of an ultrasonic surgical instrument and the ultrasonic surgical instrument. Background technique [0002] In the existing ultrasonic therapy technology, the ultrasonic transducer outputs ultrasonic vibration in the form of electrical energy converted into mechanical energy, and the vibration is transmitted to the actuator at the surgical end, such as a surgical blade, for tissue cutting and coagulation. [0003] In the prior art, the general structure of the ultrasonic transducer is as figure 1 and figure 2 As shown, it includes an existing piezoelectric crystal stack 100 composed of a plurality of existing piezoelectric ceramic sheets 102, an existing front mass block 101, an existing rear mass block 103, and an existing compression bolt 104, wherein the ultrasonic transducer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06B06B3/02A61B17/32
CPCA61B17/320068B06B1/0607B06B3/02B06B2201/76
Inventor 刘佳姚新科王东
Owner 盈甲医疗器械制造(上海)有限公司
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