公开(公告)号：US20040199157A1

公开(公告)日：2004-10-07

申请号：US10825716

申请日：2004-04-16

Inventor： Daniel V. Palanker ,  Alexander B. Vankov

IPC: A61B018/14

CPC classification number: A61B18/14 ,  A61B18/042 ,  A61B2018/00577 ,  A61B2018/00601 ,  A61B2018/00625 ,  A61B2018/1213 ,  A61B2018/122 ,  A61B2018/1472 ,  H05H1/48 ,  H05H2245/122

Abstract: An apparatus and method for cutting a material including conducting and non-conducting materials such as biological tissue, cellulose or plastic while the material is submerged in a conductive liquid medium. The apparatus has a cutting electrode with an elongate cutting portion having an aspect ratio (length to width) of 1 or more and a return electrode. The two electrodes are immersed in the conductive medium and a voltage is applied between them to heat the medium, thus producing a vapor cavity around the elongate cutting portion and ionizing a gas inside the vapor cavity to produce a plasma. The voltage applied between the electrodes is modulated in pulses having a modulation format selected to minimize the size of the vapor cavity, its rate of formation and heat diffusion into the material while the latter is cut with an edge of the elongate cutting portion. The modulation format includes pulses ranging in duration from 10 nulls to 10 ms, as well as minipulses and micropulses, as necessary. The apparatus and method of invention allow the user to perform efficient thermal ablation and electrosurgical procedures in particular at power levels as low as 10 mW with minimal thermal and cavitation damage.

公开(公告)号：US20240325081A1

公开(公告)日：2024-10-03

申请号：US18743315

申请日：2024-06-14

Applicant: ASAHI INTECC CO., LTD.

Inventor： Naozumi IWATA ,  Tomoki ICHIKAWA ,  Shoma OKAMOTO

IPC: A61B18/14 ,  A61B18/00 ,  A61B18/12

CPC classification number: A61B18/1492 ,  A61B18/1206 ,  A61B2018/00083 ,  A61B2018/00577 ,  A61B2018/122

Abstract: A plasma guide wire includes a guide wire main body, a first tube that is made of an insulating resin and covers a distal end side of the guide wire main body, a second tube that is made of an insulating resin and covers a proximal end side of the guide wire main body, and a third tube that is made of an insulating resin, covers an intermediate portion of the guide wire main body located between the distal end side and the proximal end side, has a distal end portion joined to a proximal end portion of the first tube, and has a proximal end portion joined to a distal end portion of the second tube. Any one or more of the first tube, the second tube, and the third tube forms a gas layer filled with gas, in conjunction with the guide wire main body.

公开(公告)号：US20240216006A1

公开(公告)日：2024-07-04

申请号：US18540584

申请日：2023-12-14

Applicant: INTERVENE, INC.

Inventor： Fletcher T. Wilson ,  David Batten ,  Benjamin J. Clark ,  Michi E. Garrison

IPC: A61B17/3207 ,  A61B17/32 ,  A61B18/12 ,  A61B17/22 ,  A61B17/221 ,  A61B18/00 ,  A61B18/14 ,  A61B90/00 ,  A61M25/10 ,  A61M29/02 ,  A61N7/02

CPC classification number: A61B17/320725 ,  A61B17/320016 ,  A61B18/12 ,  A61B17/22031 ,  A61B2017/22069 ,  A61B2017/22097 ,  A61B2017/2212 ,  A61B2017/32004 ,  A61B2017/320716 ,  A61B2018/00404 ,  A61B2018/00601 ,  A61B2018/00982 ,  A61B2018/122 ,  A61B18/1492 ,  A61B2090/3735 ,  A61B2090/3782 ,  A61M25/104 ,  A61M29/02 ,  A61N7/022

Abstract: The present technology is directed generally to devices, systems, and methods for capturing and cutting fibrous and trabeculated structures (such as synechiae) in vessel lumens. In one embodiment, the present technology includes an intraluminal tissue modifying system configured to capture the fibrous structures, put the fibrous structures in tension, and controllably cut through the fibrous structures without applying appreciable additional force to the vessel wall. The system may include an expandable capture device and a cutting device.

公开(公告)号：US11896265B2

公开(公告)日：2024-02-13

申请号：US16783987

申请日：2020-02-06

Applicant: Minerva Surgical, Inc.

Inventor： Csaba Truckai

IPC: A61B17/42 ,  A61B18/14 ,  A61B18/12 ,  A61B18/04 ,  A61B18/00 ,  A61B90/00

CPC classification number: A61B17/42 ,  A61B18/042 ,  A61B18/1206 ,  A61B18/14 ,  A61B18/1485 ,  A61B2017/4225 ,  A61B2018/0022 ,  A61B2018/0063 ,  A61B2018/00232 ,  A61B2018/00285 ,  A61B2018/00559 ,  A61B2018/00577 ,  A61B2018/00791 ,  A61B2018/00863 ,  A61B2018/122 ,  A61B2090/064 ,  A61B2218/007

Abstract: A system for treating uterine tissue having a seal assembly configured for positioning in a patient's cervical canal and uterine cavity; an expandable distal balloon portion; an expandable elongate medial balloon portion configured for movement between a first transversely expanded shape for engaging a cervical canal and a second transversely non-expanded shape for trans-cervical insertion; and a fluid source in communication with distal balloon portion and medial balloon portion for expansion of said balloon portions.

公开(公告)号：US11832874B2

公开(公告)日：2023-12-05

申请号：US15801687

申请日：2017-11-02

Applicant: MINERVA SURGICAL, INC.

Inventor： Aaron Germain ,  Kyle Klein ,  Michael D. Walker ,  Benedek Orczy-Timko ,  Balazs Lesko

IPC: A61B18/14 ,  A61B17/32 ,  A61B17/3205 ,  A61B18/18 ,  A61B17/00 ,  A61B18/00 ,  A61B18/12 ,  A61B50/10 ,  A61B18/04

CPC classification number: A61B18/1482 ,  A61B17/32002 ,  A61B17/3205 ,  A61B17/320016 ,  A61B18/1485 ,  A61B18/18 ,  A61B18/042 ,  A61B18/14 ,  A61B50/10 ,  A61B2017/00269 ,  A61B2017/32004 ,  A61B2017/320028 ,  A61B2017/320064 ,  A61B2018/0072 ,  A61B2018/00083 ,  A61B2018/00196 ,  A61B2018/00559 ,  A61B2018/00595 ,  A61B2018/00601 ,  A61B2018/122 ,  A61B2018/1213 ,  A61B2018/142 ,  A61B2018/1412 ,  A61B2018/1475 ,  A61B2217/005 ,  A61B2218/007

Abstract: A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

公开(公告)号：US20180085155A1

公开(公告)日：2018-03-29

申请号：US15717643

申请日：2017-09-27

Applicant: Bovie Medical Corporation

Inventor： Gregory A. Konesky ,  Claes Fredrik Jonsson

IPC: A61B18/04

CPC classification number: A61B18/042 ,  A61B18/1206 ,  A61B18/14 ,  A61B2018/00583 ,  A61B2018/122 ,  A61B2018/1475

Abstract: An electrosurgical apparatus for generating a plasma discharge beam is provided. In one aspect, the electrosurgical apparatus includes a first fluid flow housing, a second fluid flow housing, and an electrode. A first gas is provided to the distal end of the first fluid flow housing, where the electrode is energized to ionize the first gas and generate a plasma discharge beam. A second gas is provided to the distal end of the second fluid flow housing, where the distal end of the second fluid flow housing injects the second gas into the plasma discharge beam. In another aspect, the electrosurgical apparatus includes a single fluid flow housing having an external electrode and an internal electrode. In another aspect, the electrosurgical apparatus includes a transformer assembly having a plurality of serially-connected transformers.

公开(公告)号：US09763724B2

公开(公告)日：2017-09-19

申请号：US15299536

申请日：2016-10-21

Applicant: Bovie Medical Corporation

Inventor： Gregory A. Konesky ,  Borislav S. Simeonov

IPC: A61B18/04 ,  A61B18/10 ,  A61B18/12

CPC classification number: A61B18/042 ,  A61B18/10 ,  A61B18/1233 ,  A61B2018/122

Abstract: Systems and methods for discriminating between various gases, e.g., argon and helium, for enhanced safety of medical devices are provided. The present disclosure may take the form of a dedicated-use embodiment where a specific gas, helium for example, is expected, and an enabling or “Go” signal is issued when that gas is detected, or an inhibitory or “No-Go” signal when a gas is present that is not identified as helium. Alternately, a control line or input command can be used to select between helium and argon as the expected gas and then issue the appropriate “Go/No-Go” signal, depending on which gas is identified.

公开(公告)号：US20170231681A1

公开(公告)日：2017-08-17

申请号：US15583712

申请日：2017-05-01

Applicant: Hermes Innovations LLC

Inventor： Akos Toth ,  Dominique J. Filloux ,  Csaba Truckai

IPC: A61B18/04 ,  A61B18/14

CPC classification number: A61B18/042 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00559 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00797 ,  A61B2018/00821 ,  A61B2018/00898 ,  A61B2018/122 ,  A61B2018/147 ,  A61B2090/3983

Abstract: Systems and methods for endometrial ablation. The systems include a handle and elongated introducer sleeve extending to an expandable working end having a fluid-tight interior chamber. A thin dielectric wall surrounds at least a portion of the interior chamber and has an external surface for contacting endometrial tissue. The thin dielectric wall surrounds a collapsible-expandable frame and receives an electrically non-conductive gas. First and second polarity electrodes are exposed to the interior and exterior of the chamber, respectively. A radiofrequency power source operatively connects to the electrode arrangement to apply a radiofrequency voltage across the first and second electrodes, wherein the voltage is sufficient to initiate ionization of the neutral gas into a conductive plasma within the interior chamber, and to capacitively couple the current in the plasma across the thin dielectric wall to ablate endometrial tissue engaged by the external surface of the dielectric structure.

公开(公告)号：US20170172642A1

公开(公告)日：2017-06-22

申请号：US15448909

申请日：2017-03-03

Applicant: ArthroCare Corporation

Inventor： David Y. Yuan ,  Jean Woloszko ,  Jonathan L. Gaspredes ,  Thomas P. Ryan

IPC: A61B18/04

CPC classification number: A61B18/042 ,  A61B18/1233 ,  A61B18/148 ,  A61B2018/00583 ,  A61B2018/0066 ,  A61B2018/00672 ,  A61B2018/00702 ,  A61B2018/00744 ,  A61B2018/00767 ,  A61B2018/00779 ,  A61B2018/00791 ,  A61B2018/00827 ,  A61B2018/00863 ,  A61B2018/00875 ,  A61B2018/00892 ,  A61B2018/00898 ,  A61B2018/0094 ,  A61B2018/00988 ,  A61B2018/122 ,  A61B2018/1472 ,  A61B2218/007 ,  A61B2560/0276 ,  A61B2560/028

Abstract: Electrosurgical procedures. At least some of the example methods that include: supplying energy to an active electrode of an electrosurgical wand, the supplying energy to the active electrode by an electrosurgical controller; monitoring an electrical parameter associated with the energy; and determining, based on the electrical parameter, the presence of a wand condition of the electrosurgical wand, the wand condition being at least one selected from the group consisting of: a surface area of the active electrode is less than a predetermined threshold surface area; the surface area of the active electrode is approaching the predetermined threshold surface area; and that the electrosurgical wand is affected by a blockage.

公开(公告)号：US20160106497A1

公开(公告)日：2016-04-21

申请号：US14982593

申请日：2015-12-29

Applicant: IOGYN, INC.

Inventor： Aaron Germain ,  Kyle Klein ,  Michael D. Walker ,  Benedek Orczy-Timko ,  Balazs Lesko

IPC: A61B18/14 ,  A61B18/04

CPC classification number: A61B18/1482 ,  A61B17/320016 ,  A61B17/32002 ,  A61B17/3205 ,  A61B18/042 ,  A61B18/14 ,  A61B18/1485 ,  A61B18/18 ,  A61B2017/00269 ,  A61B2017/320028 ,  A61B2017/32004 ,  A61B2017/320064 ,  A61B2018/00083 ,  A61B2018/00196 ,  A61B2018/00559 ,  A61B2018/00595 ,  A61B2018/00601 ,  A61B2018/0072 ,  A61B2018/1213 ,  A61B2018/122 ,  A61B2018/1412 ,  A61B2018/142 ,  A61B2018/1475 ,  A61B2217/005 ,  A61B2218/007

Abstract: A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.