scispace - formally typeset
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

Surgical staples and staple cartridges

TL;DR: In this article, a surgical staple can be formed and/or stamped from a sheet of material, and can be later removed from the sheet using a staple leg plane and a staple base.
Patent

Devices, methods, and systems for shrinking tissues

TL;DR: In this paper, a variety of devices and methods for applying gentle resistive heating of these and other tissues to cause them to contract without imposing significant injury on the surrounding tissue structures.
Patent

Fastener cartridge comprising deployable tissue engaging members

TL;DR: A fastener can include at least one longitudinal row of cavities which each include a deployable tissue engaging member, and these cavities can comprise the outermost rows of the fastener cartridge.
Patent

Surgical instruments with improved closure arrangements

TL;DR: In this article, a surgical instrument that includes jaw members, at least one of which may be moved to closed positions relative to the other jaw member upon actuation of a closure actuator, is described.
Patent

Fastener cartridge comprising fastener cavities including fastener control features

TL;DR: In this article, an end effector can comprise, one, a fastener cartridge including a plurality of fasteners stored therein and, two, an anvil configured to deform the fasteners.
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.