Patent
Techniques for operating generator for digitally generating electrical signal waveforms and surgical instruments
Eitan T. Wiener,David C. Yates +1 more
TLDR
In this article, a method of generating electrical signal waveforms by a generator is described, where the generator includes a processor and a memory in communication with the processor, and the memory defines a first and second table.Abstract:
Disclosed is a method of generating electrical signal waveforms by a generator. The generator includes a processor and a memory in communication with the processor. The memory defines a first and second table. The processor retrieves information from the first table defined in the memory, where the information is associated with a first wave shape of a first electrical signal waveform for performing a surgical procedure. The processor retrieves information from the second table defined in the memory, where the information is associated with a second wave shape of a second electrical signal waveform for performing a surgical procedure. The processor combines the first and second wave shapes to create a combined wave shape of an electrical signal waveform for performing a surgical procedure and the combined wave shape electrical signal waveform for performing a surgical procedure is delivered to a surgical instrument.read more
Citations
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Patent
Devices and techniques for cutting and coagulating tissue
Jeffrey D. Messerly,Eitan T. Wiener,Brian T. Noyes,Jeffrey L. Aldridge,James R. Giordano,Robert J. Beetel,Daniel J. Abbott,Foster B. Stulen,Matthew C. Miller,Nathan J. Price,Daniel W. Price +10 more
TL;DR: In this paper, the authors present a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument using at least one electrical signal, which is monitored against a first set of logic conditions.
Patent
Modular battery powered handheld surgical instrument with energy conservation techniques
TL;DR: In this article, a method of conserving energy in a surgical instrument that includes a segmented circuit having a plurality of independently operated circuit segments, a voltage control circuit, an energy source, a memory, and a processor coupled to the memory is presented.
Patent
Surgical instruments with firing system overload protection mechanisms
TL;DR: In this paper, a surgical instrument that includes an end effector and a trigger that is actuatable between a first position and a second position is presented, where a toggle assembly is transitionable between a folded configuration and an expanded configuration, wherein the toggle assembly was configured to motivate the actuation drive to effectuate a movement in the folded configuration.
Patent
Tissue loading of a surgical instrument
Jeffrey D. Messerly,William E. Clem,John A. Weed,Eric Stout,Craig T. Davis,John E. Brady,Joseph D. Dennis,Phillip H. Clauda,Rivard Monica L +8 more
TL;DR: In this paper, various ultrasonic instruments include structures configured to indicate the cutting length of the instruments, detect when grasped tissue has extended beyond the cutting lengths of the instrument, and prevent tissue from extending beyond the length.
Patent
Controlling impedance rise in electrosurgical medical devices
TL;DR: In this article, a control circuit may limit the electrosurgical signal to a first maximum power when the impedance between the first and second electrodes exceeds a first mode threshold, and the second maximum power may be greater than the first.
References
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Book
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TL;DR: This paper introduced the physical effects underlying heat and mass transfer phenomena and developed methodologies for solving a variety of real-world problems, such as energy minimization, mass transfer, and energy maximization.
Patent
An electrosurgical instrument
TL;DR: In this article, an electrosurgical instrument for the treatment of tissue in the presence of an electrically-conductive fluid was disclosed, consisting of an instrument shaft (32), and a tissue treatment electrode (31) at one end of the shaft.
Patent
Surgical instrument and method
TL;DR: In this paper, the authors describe a surgical instrument useful for laparoscopic surgery comprising an insulated shaft, a control means and a connection to an electrosurgical radiofrequency power source, its distal end having a tissue-engaging ledge, and the shaft supporting a tissueengaging clamping or cutting member movable toward the ledge in response to the control means so that an artery or other tissue in the pocket of the J-hook can be clamped or cut while radiofrequency current is applied.
Patent
Surgical Stapling Apparatus
TL;DR: In this article, a surgical stapling device particularly suited for endoscopic procedures is described, which includes a handle assembly and an elongated body extending distally from the handle assembly.
Patent
Surgical device for stapling and fastening body tissues
Seiji Kuramoto,Shiro Bito,Minoru Tsuruta,Shuichi Kimura,Akito Mukaizawa,Tsuyoshi Tsukagoshi,Akihiro Taguchi,Akio Nakada +7 more
TL;DR: In this article, a surgical device for stapling and fastening body tissues, consisting of an insertion section extending from an operation section for insertion into a body cavity, and a stitching member connected to a distal end of the insertion section, for treating body tissues with a high-frequency current within the body cavity.