-
公开(公告)号：US10945632B2
公开(公告)日：2021-03-16
申请号：US15412097
申请日：2017-01-23
Inventor： Lev A. Koyrakh , Jeffrey A. Schweitzer , Daniel R. Starks , Carlos Carbonera
Abstract: A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.
-
12.发明授权公开(公告)号：US10912923B2
公开(公告)日：2021-02-09
申请号：US16152127
申请日：2018-10-04
Inventor： Wayne Heideman , Allan M. Fuentes , Richard E. Stehr , Sarah Cumming , Mark Dustrude
Abstract: A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly may also be provided in the outer layer, and may be formed by braiding a plurality of flat wires into a wire mesh. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.
-
公开(公告)号：US20200297239A1
公开(公告)日：2020-09-24
申请号：US16087804
申请日：2017-04-05
Inventor： RICHARD J. OLSON
Abstract: Systems, apparatuses and methods are provided for identifying the position of a catheter relative to internal tissue and controlling injection of a therapeutic substance(s) into the internal tissue. In one embodiment, a catheter includes one or more position sensing electrodes disposed at or near a distal end of the catheter that allow identifying the position of the catheter relative to the internal tissue. The catheter also includes one or more contact sensors that provide an indication of contact and/or contact forces between the catheter and internal tissue before and after a therapy delivery needle is extended from the catheter into the internal tissue. Outputs of the contact sensor(s) allows for confirming insertion of the therapy delivery needle into the internal tissue to a desired depth. Once inserted to the desired depth, a therapeutic substance may be injected into the internal tissue at the desired depth.
-
公开(公告)号：US10687891B2
公开(公告)日：2020-06-23
申请号：US15404844
申请日：2017-01-12
Inventor： Kedar Ravindra Belhe , Saurav Paul
Abstract: A catheter assembly for assessing contact between the catheter assembly and tissue is disclosed. The assembly includes a catheter shaft and a pressure sensitive conductive composite member whose electrical resistance varies with pressure applied to the catheter assembly. The assembly also includes at least one measurement terminal to permit the measurement of changes in the electrical characteristics of the pressure sensitive conductive composite member. The assembly may optionally include a measurement device to measure resistance, impedance and/or other electrical characteristics. The assembly may utilize a reference electrode secured to the patient's tissue, which permits the measurement device to measure changes between the reference electrode and the at least one measurement terminal. Optionally, the assembly may include a conductive outer layer. Also disclosed are sensor assemblies, contact sensor, methods of contact sensing, and methods of manufacturing relating to the use of pressure sensitive conductive composites.
-
公开(公告)号：US10682177B2
公开(公告)日：2020-06-16
申请号：US15824941
申请日：2017-11-28
Inventor： Robert F. Howat , Alan Fuentes
IPC: A61B18/14 , A61M25/00 , A61N1/05 , B32B37/12 , B32B38/00 , B32B38/08 , A61B5/042 , A61B5/00 , A61B18/18 , A61B18/00 , A61N7/00
Abstract: A catheter includes a braid assembly having a dual-laminate coating. The braid assembly includes a plurality of braid members interwoven to provide for interstices between the braid members, each braid member having an electrically conductive element, a flexible non-electrically-conductive polymer coating that insulates the electrically conductive element and a thermoplastic bonding adhesive coating. The braid assembly is formed between an inner polymer layer and an outer polymer layer. One or more of the braid members may be coupled to an energy delivery element.
-
Patent Agency Ranking
公开(公告)号：US10675086B2
公开(公告)日：2020-06-09
申请号：US14934698
申请日：2015-11-06
Inventor： Valtino X. Afonso , Lubomir V. Dragnev , Sarah E. Cumming , Yitzhak I. Shai , Saurav Paul
IPC: A61B18/12 , A61B18/14 , A61B5/0402 , A61B5/042 , A61B18/24 , A61B17/00 , A61B18/00 , A61B18/02 , A61N7/02 , A61B5/00 , A61B34/20 , A61B34/10 , A61B34/30 , A61B34/00 , A61B90/00
Abstract: A method and system for presenting information representative of lesion formation is provided. The system comprises an electronic control unit (ECU). The ECU is configured to acquire a value for an ablation description parameter and/or a position signal metric, wherein the value corresponds to a location in the tissue. The ECU is further configured to evaluate the value, assign it a visual indicator of a visualization scheme associated with the parameter/metric corresponding to the value, and generate a marker comprising the visual indicator such that the marker is indicative of the acquired value. The method comprises acquiring a value for the parameter/metric, and evaluating the value. The method further includes assigning a visual indicator of a visualization scheme associated with the parameter/metric corresponding to the value, and generating a marker comprising the visual indicator.
-
公开(公告)号：US10668251B2
公开(公告)日：2020-06-02
申请号：US16031494
申请日：2018-07-10
Inventor： Duy Nguyen , Sheldon Nelson , Elizabeth Nee , Guy P. Vanney
Abstract: The invention provides a deflectable catheter capable of forming many variable radius spiral forms from a single, flexible, distal end section. In one aspect, the catheter employs a variable radius control wire to extend or deform a pre-formed loop structure into a three dimensional spiral-like form or geometry. The ability of a single catheter to create a multitude of shapes and sizes allows users to access to a number of anatomical areas without changing the catheter during a procedure or treatment. In another aspect, the invention encompasses methods of producing deflectable variable radius catheters, where two or more regions of the catheter having common control wires are fused or formed onto one another.
-
公开(公告)号：US10657715B2
公开(公告)日：2020-05-19
申请号：US16234005
申请日：2018-12-27
Inventor： Lev A. Koyrakh , Eric J. Voth
IPC: G06T19/00 , A61B5/042 , A61B5/0408 , G06T11/00
Abstract: A method for projecting a 3D surface geometry onto a planar projection comprises: obtaining a 3D geometry of a chamber surface using an algorithm that generates angles and distances between points on the chamber surface that represent mapping information; applying a cutting curve to at least two points on the chamber surface; and at least partially unfolding at least a portion of the chamber surface along the cutting curve to form a planar projection that optimally preserves the angles and distances between points on the chamber surface.
-
19.发明授权公开(公告)号：US10646692B2
公开(公告)日：2020-05-12
申请号：US15887415
申请日：2018-02-02
Inventor： Troy T. Tegg , Salome A. Gonzalez
Abstract: A deflectable catheter shaft section is disclosed comprising an elongated body extending along a longitudinal axis and comprising a distal end and a proximal end; and a plurality of lumens extending along the longitudinal axis of the elongated body, wherein at least one of the lumens is abutting at least another one of the lumens. A catheter comprising the deflectable catheter shaft section and a method of manufacturing the deflectable catheter shaft section are also disclosed. A catheter incorporating a deflectable catheter shaft section can further comprise first and second compression coils disposed over pull wires located within the catheter, wherein the compression coils are unattached to the catheter or components thereof, but can be constrained by a shaft coupler at a distal end of each of the compression coils and by at least a portion of a handle assembly at a proximal end of each of the compression coils.
-
公开(公告)号：US10543340B2
公开(公告)日：2020-01-28
申请号：US15938973
申请日：2018-03-28
Inventor： Allan Fuentes
Abstract: A dual braided catheter shaft includes an inner helical braid and outer helical braid than encapsulate an axially extending steering wire there between. In one embodiment, the shaft includes an inner polymer jacket, an inner braid formed on the inner jacket, a steering wire disposed along an outside surface of the inner braid, an outer braid formed over the inner braid and steering wire assembly and an outer jacket formed on the outer braid. The braiding parameters of the inner and outer braids can be varied along the length of the catheter to provide varying mechanical properties.
-
-
-
-
-
-
-
-
-
Search Results
509
records
(took 0.033 seconds)
