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
Electrosurgical seal and dissection systems
Daniel Mcfarland,Michael Whitlock,Patrick Elliott,Duy Nguyen,Jimienez Aaron,Andrea Chan,Lee Vanna +6 more
TL;DR: In this paper, a bipolar electrosurgical fusion/sealer and dissector is provided that is arranged to simultaneously fuse and cut tissue captured between jaws of the instrument, including particularly positioned, shaped and/or oriented electrodes along with a compressible landing pad to perform the simultaneous fusion and cutting of tissue.
Patent
Methods for treating hypertension and reducing blood pressure with formation of fistula
Adam L. Berman,William E. Cohn,Dana R. Mester,Damian A. Jelich,Thomas D. Pate,Philip M. Tetzlaff +5 more
TL;DR: In this paper, the authors describe devices and methods for treating hypertension by forming a fistula between two blood vessels to reduce blood pressure of a patient, which may be formed using a catheter having an electrode that is placed in a first blood vessel.
Patent
Methods of shielding implantable medical leads and implantable medical lead extensions
TL;DR: Shielded sheaths are placed over implantable medical leads and/or implantable Medical lead extensions to provide shielding from electromagnetic energy and to prevent heating at the electrodes as discussed by the authors, and include insulative bodies with shield layers such as conductive braided wire or conductive foil tubular structures.
Patent
Stapling system incorporating a firing lockout
TL;DR: In this article, a stapling system consisting of an anvil, a channel, a firing member, a replaceable unfired staple cartridge, and a locking member is disclosed, where the firing member is movable distally during a staple firing stroke.
Patent
Self-positioning electrode system and method for renal nerve modulation
TL;DR: In this paper, a system for nerve and tissue modulation is described, which includes an expandable frame having one or more electrodes positioned on or about the frame and an actuation assembly including a biasing element, a central shaft, and a piston.
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.