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

Control systems for surgical instruments

TL;DR: In this paper, a surgical instrument can comprise: a power circuit comprising a power source and a switch, a microcontroller coupled to the power circuit, a handle comprising an attachment portion, and a control circuit in signal communication with the microcontroller.
Patent

Surgical stapler with floating anvil

TL;DR: A surgical instrument can include an anvil and, in addition, a staple support configured to support a staple cartridge as discussed by the authors, which can be translated and/or rotated as the anvil is moved toward the staple cartridge.
Patent

Manually driven surgical cutting and fastening instrument

TL;DR: In this article, a surgical cutting and fastening instrument that includes an elongate channel that is attached to a handle assembly by a pivotally translatable anvil attached thereto and a knife bar supported therein is presented.
Patent

Tissue thickness compensator comprising a plurality of capsules

TL;DR: A tissue thickness compensator can include at least one medicament tube, capsule, and/or packet contained therein this paper, and it can also include a plurality of layers, such as polyethylene or polypropylene.
Patent

Tissue thickness compensators for circular surgical staplers

TL;DR: Tissue thickness compensators for use with circular surgical staplers are discussed in this article, where means and configurations for deploying healing agents for enhancing the healing process are discussed.
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.