Patent
Methods and apparatus for surgical cutting
TLDR
An electrosurgical probe comprises a shaft having an electrode array (12) at its distal end and a connector at its proximal end as mentioned in this paper, which is used to cut or ablate target tissue while heat dissipation through low impedance paths.Abstract:
An electrosurgical probe comprises a shaft having an electrode array (12) at its distal end and a connector at its proximal end. The array (12) includes a plurality of isolated electrode terminals, and an electrosurgical power supply (28) is provided with a multiplicity of independently limited or controlled current sources and a connector. The electrosurgical probe and the power supply may be connected through their respective connectors so that the independent current sources are connected to individual electrode terminals. By applying very high frequency electrical energy to the electrode array, target tissue may be cut or ablated while heat dissipation through low impedance paths, such as blood and normal saline, will be minimized.read more
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Patent
Fuse-electrode electrosurgical apparatus
Robert H. Dahla,Jean Woloszko +1 more
TL;DR: In this article, an electrosurgical apparatus for performing a surgical procedure on a target site, comprising a shaft having a distal end portion, including a fuse leg, the fuse leg adapted to break and disable the instrument upon applying a voltage differential between the active electrode and a return electrode for a predetermined amount of time.
Patent
Surgical instrument comprising an articulation system ratio
TL;DR: In this paper, a shaft assembly is disclosed comprising a shaft including a proximal end, a distal end and a longitudinal axis extending between the proximal and distal ends.
Patent
Surgical instruments with open and closable jaws and axially movable firing member that is initially parked in close proximity to the jaws prior to firing
TL;DR: In this paper, a surgical instrument comprising an articulatable end effector that is selectively articulated about an articulation axis is described. And each jaw engagement feature is configured such that a portion thereof is positioned between the jaw pivot axis and the articulation axes when the axially movable firing member is in the starting position.
Patent
Surgical instruments with articulatable end effector with axially shortened articulation joint configurations
TL;DR: In this article, the second jaw is pivotable relative to the first jaw about a pivot axis by an axially movable closure member, and a first distance between the pivot axis and an area of camming contact between a closure member cam surface on the closure member and a jaw cam surface is divided by a second distance from the articulation axis to the proximal most fastener location.
Patent
Surgical end effectors with improved jaw aperture arrangements
TL;DR: In this article, a surgical end effector that includes a first jaw and a second jaw that is pivotally attached to the first jaw for pivotal travel between a fully open position and a fully closed position is described.
References
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Patent
Medical probe device and method
TL;DR: A medical probe device comprises a catheter having a stylet guide housing with one or more stylet ports in a side wall of the probe, which can be used to direct a flexible stylet outward through the stylet port and through intervening tissue at a preselected, adjustable angle to a target tissue as discussed by the authors.
Patent
Method and apparatus for providing enhanced tissue fragmentation and/or hemostatis
TL;DR: In this paper, a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip was presented.
Patent
Electrosurgical bipolar treating apparatus
TL;DR: An electrosurgical bipolar treating apparatus comprising a handpiece to which is connected a first active electrode and a second return electrode having exposed distal ends which define a bipolar tip for electrosurgically treating tissue at an operational site on a patient, which tip is structured so that both distal end simultaneously contact said tissue and wherein the active electrode has a higher tissue to electrode impedance than the return electrode as mentioned in this paper.
Patent
Ablation catheter with selectively deployable electrodes
TL;DR: In this article, a catheter with a tip member which during the initial placement of the catheter within the vascular system so that the distal tip member is disposed in a working relation with the lesion to be removed is described.
Patent
Method and apparatus for controlled contraction of soft tissue
TL;DR: In this paper, a handpiece and an electrode with an electrode proximal end (16) associated with the handpiece are used to control contraction of tissue that includes collagen fibers.