Patent
Methods and apparatus for surgical cutting
Reads0
Chats0
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
Citations
More filters
Patent
Cartilage treatment probe
Kobi Iki,William M. Ambrisco,Douglas M. Lorang,Alan P. Gannon,Richard M. Ranalli,Matthew E. Mitchell,Mark D. Markel,Ryland B. Edwards +7 more
TL;DR: In this paper, the head of an electrosurgery instrument is coupled to a shaft by a flexible portion, and the flexible portion biases the electrically conductive surface towards a tissue surface.
Patent
Method and system of an electrosurgical controller with wave-shaping
TL;DR: In this paper, an electrosurgical controller with wave-shaping is proposed to induce an intermediate voltage signal on a secondary winding of a first transformer and wave-shape the intermediate AC voltage signal by a second winding coupled to the first transformer.
Patent
Electrosurgical instruments and connections thereto
John R. Brustad,Zoran Falkenstein,Benjamin Linville-Engler,Matthew A. Wixey,Gary M. Johnson,Patrick Elliott +5 more
TL;DR: An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes as mentioned in this paper, and the instrument is removably connectable to an Electrosurgical unit via an electrosurgery connector extending from the instrument and a receptacle on the electrosural unit.
Patent
Renal nerve modulation devices and methods
TL;DR: In this article, a system for nerve and tissue modulation is described, which includes an elongated shaft having a proximal end region and a distal end region, and one or more ground pad electrodes connected to a processor configured to modulate the impedance of each circuit.
Patent
Medical probes for the treatment of blood vessels
Michael Hoey,John H. Shadduck +1 more
TL;DR: In this paper, thermally-medicated treatment of blood vessels to elicit an immune response to cause rapid endothelial growth over at least portions of an implant or stent to prevent adverse events such as restenosis.
References
More filters
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.