Transducer features for ultrasonic surgical instruments

A technology of piezoelectric transducer and ultrasonic knife, applied in the field of surgical instruments

Active Publication Date: 2019-11-15
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While several systems and instruments have been developed and used, it is believed that no one prior to the present inventor has developed or used the invention described in the appended claims

Method used

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  • Transducer features for ultrasonic surgical instruments
  • Transducer features for ultrasonic surgical instruments
  • Transducer features for ultrasonic surgical instruments

Examples

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Embodiment Construction

[0123] Certain examples of the technology described below should not be used to limit the scope of the technology. Other examples, features, aspects, embodiments, and advantages of the present technology will be apparent to those skilled in the art from the following description, which is done by way of example, and which is contemplated for implementing the present technology one of the best ways. As will be realized, the technology described herein is capable of other different and obvious aspects, all without departing from the inventive technology. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.

[0124] It should also be understood that any one or more of the teachings, expressions, embodiments, examples, etc. described herein may be combined with any of the other teachings, expressions, embodiments, examples, etc. described herein. or a combination of them. The following teachings, expressions, embod...

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Abstract

The invention discloses a device for operating tissue, which includes a main body, a shaft, an ultrasonic knife and an acoustic assembly. The shaft extends distally from the body. The knife is disposed at the distal end of the shaft. The acoustic assembly includes an acoustic waveguide coupled to a blade, a piezoelectric transducer element, a fastener, and a coupling member. The transducer element defines an inner diameter surface and an outer diameter surface. The fastener is configured to secure the transducer element relative to the waveguide. The coupling member is configured to provide electrical continuity between the fastener and the inner diameter surface of the transducer element. The outer diameter surface of the transducer element includes an annular recess. The other coupling member is configured to provide electrical continuity between the annular recess of the piezoelectric transducer element and the power source while allowing the piezoelectric transducer element to rotate relative to the body.

Description

technical field [0001] The present invention relates to the field of surgical instruments, and in particular, to transducer features for ultrasonic surgical instruments. Background technique [0002] Various surgical instruments include an end effector having a knife element that vibrates at ultrasonic frequencies to cut and / or seal tissue (eg, by denaturing proteins in tissue cells). These instruments include a piezoelectric element that converts electrical power into ultrasonic vibrations that are transmitted along an acoustic waveguide to the blade element. The precision of cutting and coagulation can be controlled by the surgeon's technique and adjustments to power level, blade angle, tissue traction and knife pressure. [0003] Examples of ultrasonic surgical instruments include HARMONIC Ultrasonic scissors, HARMONIC Ultrasonic scissors, HARMONIC Ultrasonic scissors, and HARMONIC Ultrasonic Knife, all instruments mentioned above were obtained from Ethicon Endo-...

Claims

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Application Information

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IPC IPC(8): A61B17/32
CPCA61B2017/00477A61B2017/22027A61B2017/320089A61B2017/320071A61B2017/320094A61B2017/320095A61B2017/320069A61B17/320068H10N30/875
Inventor F·B·斯图伦M·R·拉姆平S·A·尼尔德T·G·迪茨C·G·金博尔J·B·舒尔特S·莱J·S·吉S·J·巴利克W·D·丹纳赫G·M·蒙森
Owner ETHICON ENDO SURGERY INC
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