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Ultrasonic device for cutting and coagulating with stepped output

A technology of ultrasound and ultrasonic transducers, applied in the field of ultrasonic surgery systems, can solve problems such as tissue damage around harmonic instruments

Active Publication Date: 2011-07-06
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, without some form of feedback indication to remind that the cut is complete, the user may continue to activate the harmonic instrument while the cut is complete, such that when the harmonic instrument is activated without material between the jaws The exponentially increasing heat generated can cause possible damage to harmonic instruments and surrounding tissue

Method used

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  • Ultrasonic device for cutting and coagulating with stepped output
  • Ultrasonic device for cutting and coagulating with stepped output
  • Ultrasonic device for cutting and coagulating with stepped output

Examples

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Embodiment Construction

[0028] Before describing in detail the various embodiments of ultrasonic surgical instruments, it should be noted that the application or use of the exemplary embodiments is not limited to the configurations and arrangements of components shown in detail in the drawings and detailed description. Exemplary embodiments can be implemented alone or in combination with other embodiments, alterations and modifications, and can be implemented or performed in various ways. Furthermore, the terms and formulas used herein have been chosen for the convenience of the reader and for the purpose of describing exemplary embodiments and not for purposes of limitation unless otherwise indicated.

[0029] Furthermore, it should be understood that any one or more of the embodiments, expressions of embodiment, examples described below may be combined with any one or more of the other embodiments, expressions of embodiment and examples described below.

[0030] Various embodiments relate to improv...

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Abstract

Various embodiments are directed to an apparatus, system, and method for driving an end effector coupled to an ultrasonic transducer in a surgical instrument. The method comprises generating a first ultrasonic drive signal by a generator coupled to an ultrasonic drive system, actuating the ultrasonic transducer with the first ultrasonic drive signal for a first period, generating a second ultrasonic drive signal by the generator, and actuating the ultrasonic transducer with the second ultrasonic drive signal for a second period, subsequent to the first period. The first drive signal is different from the second drive signal over the respective first and second periods. The first and second drive signals define a step function waveform over the first and second periods. The apparatus comprises a generator configured to couple to an ultrasonic instrument. The system comprises a generator coupled to an ultrasonic instrument. The ultrasonic instrument comprises an ultrasonic drive system comprising an ultrasonic transducer coupled to a waveguide and an end effector coupled to the waveguide, and wherein the ultrasonic drive system is configured to resonate at a resonant frequency.

Description

[0001] Related patent application cross-reference [0002] This application claims an application filed on August 6, 2008 entitled "Ultrasonic Device for Cutting and Coagulating U.S. Provisional Patent Application No. 61 / 086619 with Stepped Output" (ultrasonic device for cutting and coagulating with step output) and (2) filed on August 13, 2008 entitled "Ultrasonic Device for Cutting and Coagulating US Provisional Patent Application No. 61 / 188,790 with Stepped Output" (ultrasonic device for cutting and coagulation with step output), both of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates generally to an ultrasonic surgical system, and more particularly, to an ultrasonic system that allows a surgeon to perform cutting and coagulation. Background technique [0004] Ultrasonic surgical instruments are increasingly widely used in surgical operations due to their unique performance characteristics. Depending o...

Claims

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Application Information

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IPC IPC(8): A61B17/32A61B17/00
CPCA61B5/0538B06B2201/76A61B2017/00176A61B17/320092A61B5/4836A61B5/6847A61B2018/00875A61B2017/00026B06B1/02A61B2018/00303B06B1/0284A61B2017/00146A61B2017/320094A61B2017/320095A61B2017/320093
Inventor J·R·吉奥尔达诺R·J·比特尔E·T·韦纳J·D·梅瑟利P·玛拉维亚B·迪纳多D·J·阿伯特
Owner ETHICON ENDO SURGERY INC
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