Devices and techniques for cutting and coagulating tissue

A generator, frequency technology, applied in the field of ultrasound systems, which can solve problems such as limited capacity and patient exposure

Active Publication Date: 2013-08-07
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, in situations where instruments are disposable or interchangeable with handpieces, ultrasound and electrosurgical generators are limited in their ability to identify the specific instrument configuration being used and optimize control and diagnostic procedures accordingly
Furthermore, capacitive coupling of signals from the generator in circuits isolated from the patient can result in patient exposure to unacceptable levels of leakage current, especially in the case of higher voltage and frequency ranges

Method used

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  • Devices and techniques for cutting and coagulating tissue
  • Devices and techniques for cutting and coagulating tissue
  • Devices and techniques for cutting and coagulating tissue

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0261] Example 1: Monitoring Frequency Slope Against Corresponding Thresholds

[0262]A first example scenario involves monitoring frequency slopes against respective thresholds and is shown in conjunction with FIGS. 23-28 . The simplest first example is one that triggers a set of responses based only on the frequency slope. Table 4 contains representative parameters for this purpose for a surgical instrument such as any of the surgical instruments 19, 190, 1000 disclosed herein including corresponding ultrasonic instruments (e.g., ultrasonic instruments 100, 120, 1004 disclosed herein). one.

[0263] Table 4: For triggering auditory indications based only on frequency slope thresholds (using a condition set) The representative parameters shown

[0264]

[0265] *These parameter values ​​are set to suitably extreme values ​​so that they don't effectively participate in the logic flow (eg, set to always be "true").

[0266] Figures 23-25 ​​show the signal data produce...

example 2

[0276] Example 2: Triggering Response Collections Based Only on Frequency Thresholds

[0277] refer to Figure 29-35 , a second example scenario includes triggering a response set based only on a frequency threshold. Table 5 contains representative parameters for this purpose in conjunction with a surgical instrument, such as any of the surgical instruments 19, 190, 1000 disclosed herein including corresponding ultrasonic instruments (e.g., ultrasonic instruments 100, 120, 1004 disclosed herein). By. It should be understood that the usefulness of triggering via frequency thresholds may be limited due to the low characterization of dynamic end effector states, and is presented herein for the completeness of the disclosure. The inclusion of frequency slope in the tissue algorithms described in connection with logic flow diagrams 1200, 1300, 1400 is intended to be used in conjunction with the logic discussed in the next section of this specification (in conjunction with the u...

example 3

[0293] Example 3: Triggering Response Sets Based on Both Frequency Slope Threshold and Frequency Threshold

[0294] A third example scenario includes triggering a response set based on both the frequency slope threshold and the frequency threshold. Table 6 contains representative parameters for this purpose in conjunction with a surgical instrument, such as any of the surgical instruments 19, 190, 1000 disclosed herein including corresponding ultrasonic instruments (e.g., ultrasonic instruments 100, 120, 1004 disclosed herein). By.

[0295] Table 6: For triggering by frequency slope threshold and frequency threshold (using two condition sets) Representative parameters for auditory indications

[0296]

[0297]

[0298] * These parameter values ​​are set to suitably extreme values ​​so that they don't effectively participate in the logic flow (e.g. set to always be "true")

[0299] In this case of Example 3, a stratified or layered response was exhibited. will us...

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PUM

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Abstract

Various embodiments are directed to an apparatus and method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions.

Description

[0001] Cross references to related patent applications [0002] This patent application claims the benefit of U.S. Provisional Patent Application Serial No. 61 / 250,217, filed October 9, 2009, and entitled "A Dual Bipolar and Ultrasonic Generator for Electro-Surgical Instruments," which is hereby issued as Incorporated by reference in its entirety. [0003] This patent application is also a continuation-in-part of co-pending U.S. Patent Application Serial No. 12 / 503,775, filed July 15, 2009, and entitled "Ultrasonic Device for Cutting and Coagulating with Stepped Output," which co-pending U.S. Patent Application Pursuant to Section 35 of § 119(e) of the United States Code (1) U.S. Provisional Patent Application Serial No. 61 / 086,619 filed August 6, 2008 and entitled "Ultrasonic Device for Cutting and Coagulating with Stepped Output" and (2) U.S. Provisional Patent Application Serial No. 61 / 188,790, filed August 13, 2008, and entitled "Ultrasonic Device for Cutting and Coagulatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32B06B1/02
CPCB06B2201/76B06B1/0215A61B2017/00176A61B5/053A61B17/320092A61B5/4836A61B2018/00875A61B2017/00026A61B2018/00303B06B1/0284A61B18/1206A61B18/1445A61B2017/320095A61B2017/320093A61B2017/320094A61B2018/00589A61B2017/00084A61B2017/00973A61B2018/00601A61B2018/0063A61B2018/00666A61B2018/00791A61B2018/00845A61B2018/00994A61B17/320068A61N7/00G05B15/02A61B18/14A61B2017/00203A61B2018/00005A61N7/02
Inventor J·D·梅瑟利E·T·维纳B·T·诺伊斯J·L·奥尔德里奇J·R·乔达诺R·J·比特尔三世D·J·艾伯特F·B·斯图伦M·C·米勒N·J·普莱斯D·W·普莱斯
Owner ETHICON ENDO SURGERY INC
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