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

Staple cartridge with deformable driver retention features

TL;DR: A staple cartridge assembly includes staple pockets, staples deployable from the staple pockets into tissue, and staple drivers movable from a starting position to deploy the staples into the tissue as discussed by the authors.
Patent

Electrode for electrosurgical ablation of tissue

TL;DR: In this article, an electrosurgical probe is provided to vaporize, cut, coagulate or remove tissue from a body structure, and a method of surgically treating a mammal includes providing a surgical instrument including a length of shaft and an active electrode having a curved current density edge with at least one convex surface.
Patent

Staple cartridge comprising staples with different clamping breadths

TL;DR: In this paper, a staple cartridge assembly is disclosed which comprises first staples including a drive portion and a clenching portion offset from the drive portion by a first distance and, in addition, second staples including an offset from a second distance which is different than the first distance.
Patent

Surgical instrument for ablation and aspiration

TL;DR: In this paper, an electrosurgical aspiration instrument (10) is coupled at a proximal end to a power source and includes an energy application surface area at a distal end.
Patent

Multi-zone bipolar ablation probe assembly

TL;DR: In this paper, a medical probe assembly, tissue treatment system, and method for ablating tissue is described, which consists of an elongated member and electrode elements mechanically coupled to the distal end of the member.
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.