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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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12-01-2012 дата публикации

Energy based devices and methods for treatment of patent foramen ovale

Номер: US20120010608A1

Автор: Dan Francis, Hanson S. Gifford, Iii, Jose Alejandro, Kenneth Horne, Mark E. Deem, William Malecki

Принадлежит: Terumo Corp

Methods and apparatus for treatment of patent foramen ovale (PFO) provide for applying energy to tissues adjacent the PFO with a catheter device to substantially close the PFO acutely. Apparatus generally includes a catheter device having at least one energy transmission member at or near its distal end configured to apply energy to PFO tissues to acutely, substantially close the PFO. Applied energy may be monopolar or bipolar radiofrequency energy or any other suitable energy, such as laser, microwave, ultrasound, resistive heating or the like. Some embodiments of a catheter device fuirther include one or more tissue apposition members near the distal end for helping bring PFO tissues together, such as a PFO covering member, a vacuum applying member and/or the like. PFO closure via energy-based approaches of the invention may help prevent stroke, treat migraine headache, and possibly treat or prevent other medical conditions.

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Номер записи: 1

02-02-2012 дата публикации

Sequential Activation RF Electrode Set for Renal Nerve Ablation

Номер: US20120029500A1

Автор: Mark L. Jenson

Принадлежит: Boston Scientific Scimed Inc

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery. A treatment element at the distal end of the shaft is dimensioned for deployment within the renal artery. The treatment element comprises a radially expandable structure configured to maintain positioning within the renal artery. A multiplicity of electrodes are spaced apart on the treatment element and configured for switchable activation and deactivation in a predetermined sequence to generate overlapping zones of heating directed at perivascular nerves of the renal artery. The overlapping heating zones comprise a distal zone associated with relatively high current densities at a distance from the treatment element sufficient to ablate the perivascular renal nerves and a proximal zone associated with current densities lower than those of the distal zone and insufficient to cause thermal injury to tissue of the renal artery adjacent the treatment element.

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Номер записи: 2

22-03-2012 дата публикации

Material delivery system

Номер: US20120071715A1

Автор: Mordechay Beyar, Oren Globerman, Rami Keller

Принадлежит: By Pass Inc

A method for injecting a therapeutic agent into a target tissue, the method comprising: (a) providing an expandable member; (b) positioning said expandable member in proximity to the target tissue; (c) Introducing the therapeutic agent into the expandable member until a desired pressure is achieved; and (d) creating a plurality of small apertures in the expandable member.

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Номер записи: 3

03-05-2012 дата публикации

Catheter with coronary sinus ostium anchor

Номер: US20120108953A1

Автор: Amy E. Thompson-Nauman, H. Toby Markowitz

Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

A method of treating cardiac tissue is provided, including positioning a first chamber of a medical device adjacent an atrial wall; directing a cryogenic coolant into the first chamber; anchoring the first chamber to the atrial wall through cryoadhesion; directing a distal portion of the medical device into the coronary sinus; and positioning a cardiac lead through at least a portion of the coronary sinus with the distal portion. The method may include measuring a temperature of the first chamber; removing the first chamber from the atrial wall once a predetermined threshold temperature of the first chamber is reached; anchoring a second chamber of the medical device to a portion of the coronary sinus; and/or perfusing blood flow through at least a portion of the second chamber.

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Номер записи: 4

10-05-2012 дата публикации

In-plane dual loop fixed diameter electrophysiology catheters and methods of manufacturing therefor

Номер: US20120116199A1

Автор: Alan de la Rama, Jennifer Velasco, Kailing Chen

Принадлежит: de la Rama Alan, Jennifer Velasco, Kailing Chen

An EP catheter includes a tubular body having a proximal region, a neck region, and a distal portion predisposed into an in-plane dual loop (at least, approximately, more or less) configuration and including a plurality of diagnostic electrodes. In deflectable catheter forms, at least one activation wire extends through at least a portion of the proximal region of the catheter body and is adapted to deflect the distal portion up to approximately 180 degrees relative to the proximal region. The catheter can be operated manually by a clinician or via a clinician-surrogate such as a computer processor-controlled surgical system. In addition, a variety of localization, visualization, and/or orientation-specific elements can be incorporated into the devices described, depicted, and claimed herein (e.g., metallic coil members, active impedance emitting or receiving electrodes, fluoroscopically opaque materials, and the like).

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Номер записи: 5

10-05-2012 дата публикации

Fixed loop deflectable electrophysiology catheters having an extended braid primary shaft coupled to the periphery of the fixed loop and methods of manufacturing therefor

Номер: US20120116200A1

Автор: Alan de la Rama, Jennifer Velasco, Pianka Roy

Принадлежит: de la Rama Alan, Jennifer Velasco, Pianka Roy

An EP catheter includes a tubular body having a proximal region, a neck region, and a distal portion predisposed into a single shallow helical fixed-diameter loop configuration and including a plurality of diagnostic electrodes. In deflectable catheter forms, at least one activation wire extends through at least a portion of the proximal region of the catheter body and is adapted to deflect the up to approximately 180 degrees relative to the proximal region. The catheter can be operated manually by a clinician or via a clinician-surrogate such as a computer processor-controlled surgical system. In addition, a variety of localization, visualization, and/or orientation-specific elements can be incorporated into the devices described, depicted, and claimed herein (e.g., metallic coil members, active impedance emitting or receiving electrodes, fluoroscopically opaque materials, and the like).

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Номер записи: 6

17-05-2012 дата публикации

Balloon catheter system

Номер: US20120123331A1

Автор: Shutaro Satake

Принадлежит: Japan Electel Inc

A balloon catheter system enables only a target site to be efficiently ablated, ensuring a balloon to be able to be brought into close contact with the target site in conformity to a shape of the target site. The balloon includes a contact portion that contacts the target site and a noncontact portion that does not contact the target site. A membrane thickness of the contact portion is thinner than that of the noncontact portion The target site that is in contact with the thin contact portion is selectively ablated, while the thick noncontact portion is less likely to exhibit a temperature increase. Hence, only the target portion is efficiently ablated.

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Номер записи: 7

17-05-2012 дата публикации

Methods and devices for controlling energy during ablation

Номер: US20120123400A1

Автор: Catherine R. Condie, David Francischelli, Jinback Hong

Принадлежит: MEDTRONIC INC

System and method for ablating tissue of a heart of a patient. The tissue is characterized, then a predetermined ablation procedure is selected based on the characterization, ablation energy is delivered according to procedure with the ablation device, and a temperature of the tissue and an impedance of the tissue are determined. Delivery of ablation energy is ceased at a time based, at least in part, on when at least one of an accumulated effective temperature of the tissue over time exceeds a thermal dose threshold and an accumulated effective energy of the tissue over time exceeds an effective energy threshold. Else, the ablation energy delivered is modified by adjusting the energy level based, at least in part, on at least one of the temperature being outside of a predetermined temperature range and the impedance being outside of an impedance range.

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Номер записи: 8

14-06-2012 дата публикации

Bipolar medical devices for extracting tissue and methods therefor

Номер: US20120150179A1

Автор: Marc Feinberg, Mosaddeq Hossain

Принадлежит: Ethicon Inc

A bipolar medical device for extracting tissue including a handle, and an outer tube projecting from the handle, the outer tube extending along a longitudinal axis and including a proximal end connected with the housing and a distal end spaced from the proximal end. The medical device includes a split tube disposed within the outer tube, the split tube having a distal end including a first cutting element and an opposing second cutting element, a motor coupled with the split tube for selectively rotating the split tube and the first and second cutting elements about the longitudinal axis, and an electrosurgical generator coupled with the split tube, whereby the first cutting element is connectable with a first pole of the electrosurgical generator and the second element is connectable with a second pole of the electrosurgical generator for passing electrical current between the first and second cutting elements.

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Номер записи: 9

21-06-2012 дата публикации

Global endometrial ablation device

Номер: US20120157985A1

Автор: Lisa M. BALLOU, Melissa D. Caputo, Pajhand Iranitalab, Xiaodong Xiang

Принадлежит: Individual

An endometrial ablation apparatus is provided which includes an end member with a plurality of electrodes. The probe is attached to a controller that includes a multiplexer capable of activating each electrode individually or multiple electrodes simultaneously, such that each individual electrode may be energized separately in series to complete the ablation process. A method of performing ablation using such an apparatus is also provided.

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Номер записи: 10

21-06-2012 дата публикации

Tuned rf energy for selective treatment of atheroma and other target tissues and/or structures

Номер: US20120157988A1

Автор: Arthur G. Blanck, Corbett W. Stone, Michael F. Hoey, Raphael M. Michel, Tom A. Steinke

Принадлежит: Vessix Vascular Inc

A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

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Номер записи: 11

28-06-2012 дата публикации

Endoluminal fold creation

Номер: US20120165604A1

Автор: Gary L. Long, Jason L. Harris, Mark S. Zeiner, Michael J. Stokes

Принадлежит: Ethicon Endo Surgery Inc

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

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Номер записи: 12

28-06-2012 дата публикации

Endoluminal fold creation

Номер: US20120165842A1

Автор: Jason L. Harris, Lawrence Crainich, Mark S. Zeiner, Michael J. Stokes, Ryan M. Asher

Принадлежит: Ethicon Endo Surgery Inc

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

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Номер записи: 13

26-07-2012 дата публикации

System and method for endoluminal and translumenal therapy

Номер: US20120191079A1

Автор: David C. Lundmark, Farzad Soleimani, Frederic H. Moll

Принадлежит: Hansen Medical Inc

A system for conducting a denervation of the neural plexus adjacent the renal artery of a patient comprises a first elongate member operatively coupled to a testing element, a second elongate member having a distal portion coupled to an ablative element, and a controller configured to: activate an ablative element to selectively denervate a portion of the neural plexus which is positioned adjacent the ablative element; monitor a level of a compound in blood sampled from the testing element of the first elongate member; and modulate the activation of the ablative element based at least in part upon the level of renin monitored using the testing element.

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Номер записи: 14

09-08-2012 дата публикации

Systems, assemblies, and methods for treating a bronchial tree

Номер: US20120203216A1

Автор: Martin L. Mayse, Steven C. Dimmer

Принадлежит: Innovative Pulmonary Solutions Inc

Systems, assemblies, and methods to treat pulmonary diseases are used to decrease nervous system input to distal regions of the bronchial tree within the lungs. Treatment systems damage nerve tissue to temporarily or permanently decrease nervous system input. The treatment systems are capable of heating nerve tissue, cooling the nerve tissue, delivering a flowable substance that cause trauma to the nerve tissue, puncturing the nerve tissue, tearing the nerve tissue, cutting the nerve tissue, applying pressure to the nerve tissue, applying ultrasound to the nerve tissue, applying ionizing radiation to the nerve tissue, disrupting cell membranes of nerve tissue with electrical energy, or delivering long acting nerve blocking chemicals to the nerve tissue.

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Номер записи: 15

30-08-2012 дата публикации

Devices and methods for treatment of luminal tissue

Номер: US20120220996A1

Автор: Carson J. Shellengberger, George H. Smith, Jennifer A. Hodor, Jerome Jackson, Roger A. Stern, Roy D. Corbitt, Vincent N. Sullivan

Принадлежит: TYCO HEALTHCARE GROUP LP

Devices and methods are provided for treatment of tissue in a body lumen with an electrode deployment device. Embodiments typically include a device with a plurality of electrodes having a pre-selected electrode density arranged on the surface of a support. The support may comprise a non-distensible electrode backing that is spirally furled about an axis and coupled to an expansion member such as an inflatable elastic balloon. In some embodiments, the balloon is inflated to selectively expose a portion of the electrode surface while maintaining the electrode density.

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Номер записи: 16

06-09-2012 дата публикации

Vacuum Ablation Apparatus and Method

Номер: US20120226271A1

Автор: Peter Callas, Robert M. Pearson

Принадлежит: Angiodynamics Inc

Ablation devices and associated methods are provided for use in ablating a target tissue, such as a cystic lesion. The ablation apparatus includes an integral or connected elongate probe and a deployable structure that is axially slidable along the outer surface of the electrode. The electrode can be disposed at the probe's distal end region for ablating tissue when the electrode(s) are activated to create an ablated margin of tissue at least partially surrounding the target tissue. Suction can be applied with a vacuum source operably connected to the proximal end region of the deployable structure. A target tissue, such as a cystic lesion, can be drawn against the surface of the electrical probe.

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Номер записи: 17

13-09-2012 дата публикации

System and method for renal artery occlusion during renal denervation therapy

Номер: US20120232409A1

Автор: Allan C. Shuros, Jeffrey E. Stahmann

Принадлежит: Boston Scientific Scimed Inc

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery relative to a percutaneous access location. A treatment arrangement is provided at a distal end of the shaft and configured for deployment in the renal artery. The treatment arrangement includes an ablation arrangement configured to deliver renal denervation therapy. An occlusion arrangement is configured for deployment in the renal artery and for altering blood flow through the renal artery during or subsequent to renal denervation therapy delivery. A monitoring unit is configured for monitoring for a change in one or more physiologic parameters influenced by the renal denervation therapy. The monitoring unit is configured to produce data useful in assessing effectiveness of the renal denervation therapy based on the physiologic parameter monitoring.

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Номер записи: 18

13-09-2012 дата публикации

System and method for endometrial ablation

Номер: US20120232545A1

Автор: Akos Toth, Csaba Truckai, Robin Bek

Принадлежит: Minerva Surgical Inc

Methods, systems and devices for evaluating the integrity of a uterine cavity. A method comprises introducing transcervically a probe into a patient's uterine cavity, providing a flow of a fluid (e.g., CO 2 ) through the probe into the uterine cavity and monitoring the rate of the flow to characterize the uterine cavity as perforated or non-perforated based on a change in the flow rate.

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Номер записи: 19

27-09-2012 дата публикации

Cooling systems for electrode arrays

Номер: US20120245577A1

Автор: Alexander J. Asconeguy, Ricardo D. Roman, Teresa Ann Mihalik, Timothy J. Corvi

Принадлежит: MEDTRONIC ABLATION FRONTIERS LLC

A medical device is disclosed, including a catheter body; an electrode array coupled to the catheter body, the electrode array being transitionable from a substantially linear configuration to a substantially helical configuration; and a fluid conduit coupled to the catheter body spaced apart from the electrode array, wherein the fluid conduit is transitionable from a substantially linear configuration to a substantially helical configuration. The device may include a fluid source in communication with the fluid conduit and a radiofrequency signal generator coupled to the electrode array.

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Номер записи: 20

11-10-2012 дата публикации

Apparatus and methods to create and maintain an intra-atrial pressure relief opening

Номер: US20120259263A1

Автор: David Celermajer, Edward McNamara, Hiroatsu Sugimoto, Michael W. Sutherland

Принадлежит: DC Devices Inc

The present disclosure relates to a method and a device for treating heart failure by normalizing elevated blood pressure in the left and right atria of a heart of a mammal The present disclosure includes methods for creating and maintaining an opening in the atrial septum. Tools for making an opening and enlarging the opening are also disclosed. Use of the techniques and tools described herein prolongs the patency of an intra-atrial pressure relief opening.

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Номер записи: 21

25-10-2012 дата публикации

Methods for detection of cardiac rhythm disorders using basket style cardiac mapping catheter

Номер: US20120271136A1

Автор: Ruchir Sehra, Thomas F. Kordis

Принадлежит: Topera Inc

A method for sensing multiple local electric voltages from endocardial surface of a heart, includes: providing a system for sensing multiple local electric voltages from endocardial surface of a heart, including: a first elongate tubular member having a lumen, a proximal end and a distal end; a basket assembly including: a plurality of flexible splines for guiding a plurality of exposed electrodes, the splines having proximal portions, distal portions and medial portions therein between, wherein the electrodes are substantially flat electrodes and are substantially unidirectionally oriented towards a direction outside of the basket.

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Номер записи: 22

25-10-2012 дата публикации

Apparatus and Method for Ablating Tissue

Номер: US20120271334A1

Автор: Benjamin Pless, David A. Gallup, Jack E. Ulstad, Jr., John E. Crowe, Jonathan L. Podmore, Matthias Vaska, Roxanne L. Richman, Scott C. Anderson, Timothy Ciciarelli

Принадлежит: Individual

A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.

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Номер записи: 23

01-11-2012 дата публикации

Balloon Resection Method

Номер: US20120277578A1

Автор: Erhan H. Gunday, Lawrence J. Gerrans

Принадлежит: Sanovas Inc

A balloon resection method is disclosed generally comprising inserting a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and supplying fluid thereto in pulsed fashion to repeatedly deflate and inflate the balloon. In certain embodiments, a pump controls the pulsed supply of fluid based on an established frequency or change in volume. In some embodiments, the a keyed connector is used to identify the balloon type, and in some cases, intra-lumen diameters and densities are calculated. In some embodiments, the balloon portion of the catheter includes multiple balloon segments, which in some cases, are inflatable separately from one another.

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Номер записи: 24

01-11-2012 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20120277674A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 25

08-11-2012 дата публикации

Ablation devices and methods of use

Номер: US20120283716A1

Автор: Robert F. Bencini

Принадлежит: Boston Scientific Scimed Inc

Described herein are various methods and devices for delivering cryoablative therapy. One such device includes a cryoablation chamber and a volume displacement chamber. In use, the volume displacement chamber can be expanded to occupy a non-therapeutic volume.

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Номер записи: 26

08-11-2012 дата публикации

Surgical Forceps

Номер: US20120283727A1

Автор: John R. Twomey

Принадлежит: TYCO HEALTHCARE GROUP LP

A forceps includes an end effector assembly having first and second jaw members disposed in opposed relation relative to one another. One (or both) of the jaw members is moveable with respect to the other from a spaced-apart position to an approximated position for grasping tissue therebetween. A knife is longitudinally translatable with respect to the first and second jaw members between a retracted position, an intermediate position, and an extended position. The knife coupled to one or both of the jaw members via a pin-slot engagement such that, upon translation of the knife from the retracted position to the intermediate position, the first and second jaw members are moved to the approximated position to grasp tissue therebetween and such that, upon translation of the knife from the intermediate position to the extended position, the knife is extended between the jaw members to cut tissue grasped therebetween.

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Номер записи: 27

22-11-2012 дата публикации

Methods and devices for diastolic assist

Номер: US20120296153A1

Автор: Celina Yong, Freddy Abnousi, Michael D. Laufer

Принадлежит: NSYZ

The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff.

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Номер записи: 28

22-11-2012 дата публикации

Energy facilitated composition delivery

Номер: US20120296262A1

Автор: Osamu Katoh, Wayne Ogata

Принадлежит: RetroVascular Inc

A device for delivering a composition to a hollow body region is disclosed. In one aspect, the device comprises a first longitudinal member and a second longitudinal member. Both of the longitudinal members may comprise conductive electrodes. The longitudinal members are further configured to be connected to an energy source such that the conductive electrodes are configured to generate an energy field. At least one of the longitudinal members further comprises a delivery element configured to deliver at least one composition to the body region, such that the composition is delivered in a direction that is influenced by the generated energy field. In one aspect, the body region is a vessel comprising an occlusion.

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Номер записи: 29

03-01-2013 дата публикации

Vertebral Body Nerve and Vein Cauterizing System and Method

Номер: US20130006256A1

Автор: David C. Paul, Jody L. Seifert, Mark Weiman, Sean Suh

Принадлежит: Globus Medical Inc

Disclosed are vertebroplasty methods that include cauterizing an inner cavity of a vertebra of a mammal, such as a human, and injecting bone cement into the vertebra. Systems and kits for performing such methods are also disclosed.

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Номер записи: 30

10-01-2013 дата публикации

Methods and apparatus for performing a non-continuous circumferential treatment of a body lumen

Номер: US20130012867A1

Автор: Andrew Wu, Benjamin J. Clark, Denise Demarais, Hanson Gifford, III, Kenneth J. Michlitsch, Mark Deem, Nicolas Zadno

Принадлежит: Ardian Inc

Methods and apparatus are provided for non-continuous circumferential treatment of a body lumen. Apparatus may be positioned within a body lumen of a patient and may deliver energy at a first lengthwise and angular position to create a less-than-full circumferential treatment zone at the first position. The apparatus also may deliver energy at one or more additional lengthwise and angular positions within the body lumen to create less-than-full circumferential treatment zone(s) at the one or more additional positions that are offset lengthwise and angularly from the first treatment zone. Superimposition of the first treatment zone and the one or more additional treatment zones defines a non-continuous circumferential treatment zone without formation of a continuous circumferential lesion. Various embodiments of methods and apparatus for achieving such non-continuous circumferential treatment are provided.

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Номер записи: 31

07-02-2013 дата публикации

System and method for mapping gastro-intestinal electrical activity

Номер: US20130035576A1

Автор: Andrew John Pullan, Gregory Brian O'grady, Jonathan Christopher Erickson, Leo Koon-Wah Cheng, Peng Du

Принадлежит: Auckland Uniservices Ltd

A gastro-electrical activity mapping system and comprises a catheter insertable through a natural orifice into the gastro-intestinal (GI) tract and comprising an array of electrodes for contacting an interior surface of a section of the GI tract to detect electrical potentials at multiple electrodes, and a signal analysis and mapping system arranged to receive and process electrical signals from multiple electrodes of the array and spatially map GI smooth muscle electrical activity as an activation time map, a velocity map, or an amplitude map, which may be in the form of contour plots and may be mapped on an anatomical computer model of at least the section of the GI tract and may be animated. A GI mapping method and catheter are also claimed.

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Номер записи: 32

14-02-2013 дата публикации

Surgical Snare with Electrosurgical Tip and Method of Use

Номер: US20130041372A1

Автор: Robert E. Welt, Thomas B. Miller, William L. Athas

Принадлежит: Transenterix Inc

A medical device includes a tissue dissector and a snare loop on a common shaft. At least the distal tip of the snare loop is energizable to function as an electrosurgical element for tissue dissection. In use the snare loop is partially extended from the shaft to expose the electrosurgical element for electrosurgical dissection, and the snare loop is fully extended from the shaft to deploy the snare loop for retrieval and positioning of an implant such as a gastric banding device. The snare loop may be deployed through a pair of jaws also mounted on the shaft for use in tissue dissection.

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Номер записи: 33

21-02-2013 дата публикации

Cardiac Electrosurgery

Номер: US20130046305A1

Автор: Gareth Davies

Принадлежит: Baylis Medical Co Inc

Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. The methods include maintaining the positions of a puncture device and of a portion of a parietal pericardium relative to one other while delivering energy from the puncture device to create a channel through the pericardium. Additional embodiments disclosed include delivering a pulse or pulses of energy to the parietal pericardium and attempting to advance the puncture device through the parietal pericardium between deliveries of energy pulses.

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Номер записи: 34

11-04-2013 дата публикации

Medical devices including ablation electrodes

Номер: US20130090652A1

Автор: Mark L. Jenson

Принадлежит: Boston Scientific Scimed Inc

Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a renal nerve modulation catheter. The catheter may include an elongate catheter shaft. The catheter shaft may have a plurality of cuts formed therein define a plurality of electrode assemblies. The electrode assemblies may each include a main strut, one or more branched spacer struts extending from the main strut, and an electrode extending from the main strut and positioned radially inward from the spacer struts.

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Номер записи: 35

25-04-2013 дата публикации

Reflectance-facilitated ultrasound treatment and monitoring

Номер: US20130103028A1

Автор: Liat Tsoref, Michael Kardosh, Yossi Gross

Принадлежит: Liat Tsoref, Michael Kardosh, Yossi Gross

Apparatus comprising an ultrasound ablation system ( 10 ), which comprises a reflection-facilitation element ( 12 ), configured to be placed at an extramyocardial site of a subject, and to provide an extramyocardial reflective region; and an ultra-sound tool ( 20 ), which comprises at least one ultrasound transducer ( 40 ) configured to be positioned within a heart chamber of the subject. The ultrasound transducer ( 40 ) is configured to ablate myocardial tissue by applying ultrasound energy to the myocardial tissue such that at least a portion of the transmitted energy is reflected by the reflective region onto the myocardial tissue. Other embodiments are also described.

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Номер записи: 36

02-05-2013 дата публикации

Cryogenic balloon device with radiofrequency tip

Номер: US20130110098A1

Автор: Jean-Pierre Lalonde

Принадлежит: MEDTRONIC CRYOCATH LP

An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment.

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Номер записи: 37

02-05-2013 дата публикации

Expandable structure for off-wall ablation electrode

Номер: US20130110106A1

Автор: Leonard B. Richardson

Принадлежит: Boston Scientific Scimed Inc

Catheter systems and methods for making and using catheters systems are disclosed. An example catheter system may include a catheter having a proximal end, and a distal end, an electrode for tissue modulation disposed on a distal portion of the catheter. An expandable basket structure may be placed over a distal section of the catheter. The expandable basket structure may have a basket having a fixed end and a movable end. The movable end may be slidably coupled to the catheter. An actuating structure may be connected to the movable end for moving the expandable basket between a collapsed state and an expanded state.

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Номер записи: 38

09-05-2013 дата публикации

Ostial renal nerve ablation

Номер: US20130116687A1

Автор: Martin R. Willard

Принадлежит: Boston Scientific Scimed Inc

A catheter including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. In some instances, the thermal element may be positioned in a first vessel and may operate to heat tissue adjacent a second vessel or adjacent an ostium between the first vessel and the second vessel. Further, the catheter may include an expandable portion on which the thermal element may be connected or positioned. The expandable portion(s) may comprise a basket or cage, a balloon, a memory shape and formable portion, and/or other mechanical expanders.

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Номер записи: 39

16-05-2013 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20130123771A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 40

23-05-2013 дата публикации

Recanalizing occluded vessels using radiofrequency energy

Номер: US20130131513A1

Автор: Osamu Katoh, Wayne Ogata

Принадлежит: RetroVascular Inc

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion. By appropriately maneuvering each member and applying radiofrequency energy between the proximal and distal ends of the occlusion, a continuous channel is created.

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Номер записи: 41

23-05-2013 дата публикации

Vacuum coagulation probes

Номер: US20130131673A9

Автор: Earl Wayne Rogers, James G. Whayne, Sidney D. Fleischman

Принадлежит: Ncontact Surgical Inc

A surgical device integrating a suction mechanism with a coagulation mechanism is provided for improving lesion creation capabilities. The device comprises an elongate member having an insulative covering attached about means for coagulating soft tissue. Openings through the covering expose regions of the coagulation-causing elements and are coupled to lumens in the elongate member which are routed to a vacuum source. A fluid source to passively transport fluid along the contacted soft tissue surface may be provided in order to push the maximum temperature deeper into tissue.

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Номер записи: 42

06-06-2013 дата публикации

Microwave surgical device

Номер: US20130144286A1

Автор: Iginio Longo

Принадлежит: Consiglio Nazionale delle Richerche CNR

A microwave surgical device with high energy efficiency produces, at an antenna, an asymmetric heating pattern directed towards the side and it comprises: a plain curved portion extending from the distal end of said external conductor; and an inflection point at said distal end of the external conductor, so that said curved portion has a single cavity directed towards the axis of the coaxial end part.

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Номер записи: 43

13-06-2013 дата публикации

Catheter balloon methods and apparatus employing sensing elements

Номер: US20130150693A1

Автор: Bassel de Graff, Cliff Liu, Kevin Dowling, Lauren Klinker, Robert D'Angelo, Roozbeh Ghaffari, Stephen P. Lee, Yung-Yu Hsu

Принадлежит: Individual

An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.

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Номер записи: 44

20-06-2013 дата публикации

Endoscopic systems and methods for resection of tissue

Номер: US20130158546A1

Автор: Ciaran Toomey, Kieran Costello

Принадлежит: Cook Medical Technologies LLC

The present embodiments provide apparatus and methods for facilitating endoscopic resection of tissue. In one embodiment, the apparatus comprises a first tube having proximal and distal regions, and a working lumen disposed within at least a portion of the distal region. A second tube is disposed circumferentially around at least a portion of the distal region of the first tube. A wire has a distal end that is securely attached to a distal region of the second tube. In use, rotation of the second tube relative to the first tube causes the wire to pass circumferentially over a distal face of the first tube to incise tissue disposed within the working lumen of the first tube.

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Номер записи: 45

27-06-2013 дата публикации

Systems and methods for making and using medical ablation systems having mapping catheters with improved anchoring ability

Номер: US20130165759A1

Автор: David McGee, Isaac Kim, Josef V. Koblish

Принадлежит: Boston Scientific Scimed Inc

A mapping catheter includes an elongated body for inserting into patient vasculature. A distal end of the elongated body includes a distal portion that includes a plurality of electrodes, a proximal portion disposed proximal to the distal portion, and a reduced-dimension portion disposed between the proximal and distal portions. The distal end is formed, at least in part, from a memory shape material that bends into a preformed shape upon release from a confined space. The preformed shape includes a first loop formed, at least in part, by the distal portion. The first loop is transverse to a longitudinal axis of the proximal portion. The reduced-dimension portion is configured and arranged to bend such that the reduced-dimension section advances distally through the first loop when the first loop is held in a fixed position and a force is applied distally along the longitudinal axis of the proximal portion.

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Номер записи: 46

27-06-2013 дата публикации

Methods and apparatuses for remodeling tissue of or adjacent to a body passage

Номер: US20130165926A1

Автор: Dolores PEREZ, Prabodh Mathur, Rabih Nassif, Shahram Moaddeb

Принадлежит: Vessix Vascular Inc

Medical devices and methods for making and using the same are disclosed. An example medical device may include a catheter shaft. An expandable member may be coupled to the catheter shaft. A plurality of flexible electrode assemblies may be coupled to the expandable member. A control unit may be coupled to the electrode assemblies. The control unit may be configured to energize the electrode assemblies for approximately 10 seconds to less than approximately 1 minute.

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Номер записи: 47

11-07-2013 дата публикации

Renal nerve denervation via the renal pelvis

Номер: US20130178824A1

Автор: Terrence J. Buelna

Принадлежит: Verve Medical Inc

Apparatus, systems, and methods provide access to the renal pelvis of a kidney to treat renal nerves embedded in tissue surrounding the renal pelvis. Access to the renal pelvis may be via the urinary tract or via minimally invasive incisions through the abdomen and kidney tissue. Treatment is effected by exchanging energy, typically delivering heat or extracting heat through a wall of the renal pelvis, or by delivering active substances.

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Номер записи: 48

11-07-2013 дата публикации

Enhanced medical device for use in bodily cavities, for example an atrium

Номер: US20130178851A1

Автор: Aldo Antonio Salvestro, Ashkan Sardari, Douglas Goertzen, Fernando Lopes, Jorge Jaramillo, Peter Hawes, Saar Moisa

Принадлежит: Kardium Inc

Systems, methods, and devices allow intravascular or percutaneous mapping, orientation and/or ablation, in bodily cavities or lumens. A device includes elongate members, moveable between an unexpanded configuration and an expanded or fanned configuration. The elongate members form a stack in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducer elements carried by elongate members sense various physiological characteristics of or proximate tissue, and/or may apply energy to or proximate tissue. The elongate members are rotatable in groups or as a group in the expanded configuration. The device is retractable.

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Номер записи: 49

25-07-2013 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20130190739A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 50

25-07-2013 дата публикации

Devices for thermally-induced hepatic neuromodulation

Номер: US20130190748A1

Автор: Bobak Robert Azamian, Jonathan Allen Coe, Scott Bradley Vafai

Принадлежит: Metavention Inc

According to some embodiments, a method of treating a subject having diabetes or symptoms associated with diabetes is provided. The method includes delivering a neuromodulation catheter within a vessel (e.g., hepatic artery) having surrounding nerves that innervate the liver (e.g., sympathetic nerves of the hepatic plexus). The method may also include modulating (e.g., disrupting, ablating, stimulating) the nerves by mechanical compression, energy delivery, or fluid delivery.

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Номер записи: 51

01-08-2013 дата публикации

Selective accumulation of energy with or without knowledge of tissue topography

Номер: US20130197614A1

Автор: Arthur G. Blanck, Linas Kunstmanas, Rolfe Tyson Gustus

Принадлежит: Vessix Vascular Inc

Medical devices and methods for making and using medical devices are disclosed. An example method may include a method for heating a body tissue region adjacent to a body lumen. The method may include positioning an energy delivery portion of a catheter within the lumen and engaging the body lumen with the energy delivery portion. Engaging the body lumen may complete a plurality of circuits. The method may also include determining a pulse characteristic in response to a thermal property of a first tissue type and applying controlled pulsed electrical energy with the pulse characteristic from the energy delivery portion through the plurality of circuits.

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Номер записи: 52

05-09-2013 дата публикации

Off-wall and contact electrode devices and methods for nerve modulation

Номер: US20130231659A1

Автор: Jason P. Hill, Martin R. Willard

Принадлежит: Boston Scientific Scimed Inc

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a system for nerve modulation. The system may include an elongate shaft and a nerve modulation assembly disposed at the distal end of the shaft. The nerve modulation assembly may have a collapsed configuration and an expanded configuration. The nerve modulation assembly may include an inner basket and an outer basket. The inner basket may include a plurality of electrode struts. Each electrode strut may include an electrode. The outer basket may include a plurality of spacer struts.

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Номер записи: 53

12-09-2013 дата публикации

Cryotreatment device and method

Номер: US20130238064A1

Автор: Daniel M. Lafontaine

Принадлежит: Boston Scientific Scimed Inc

Devices and methods for cooling vessel walls to inhibit restenosis in conjunction with medical procedures such as coronary artery angioplasty. One catheter device includes a distal tube region having coolant delivery holes radially and longitudinally distributed along the distal region. In some devices, holes spray coolant directly onto the vessel walls. In other embodiments, a balloon or envelope is interposed between the coolant and the vessel walls and the coolant returned out of the catheter through a coolant return lumen. Some direct spray devices include an occlusion device to restrict blood flow past the region being cooled. Pressure, temperature, and ultrasonic probes are included in some cooling catheters. Some cooling catheters are coiled perfusion catheters supporting longer cooling periods by allowing perfusing blood flow simultaneously with vessel wall cooling.

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Номер записи: 54

19-09-2013 дата публикации

Ablation stent and method of using an ablation stent

Номер: US20130245621A1

Автор: Cecilia Emanuelsson, Hans Abrahamson, Torbjorn Persson

Принадлежит: St Jude Medical AB

Hypertension is treated in a patient by implanting an ablation stent in a renal artery of the patient. Energy is transmitted to the ablation stent to induce heating of the ablation stent, which causes ablation of a renal sympathetic nerve present on the outside of the portion of the renal artery comprising the ablation stent. A preferred ablation stent is in the form of an N-turn coil of an electrically conductive wire forming a meander structure. The respective ends of the wire are electrically connected to each other.

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Номер записи: 55

19-09-2013 дата публикации

Expandable electrode device and methods for nerve modulation

Номер: US20130245622A1

Автор: Huisun Wang, James M. Anderson

Принадлежит: Boston Scientific Scimed Inc

Embodiments of the disclosure provide an ablative system for nerve modulation through wall of a blood vessel. The ablative catheter system includes an elongate member having a proximal end and a distal end, a number of electrode elements, an expansion mechanism. The electrode elements are finger-like structures mounted at their proximal ends for pivotal rotation radially outward from the longitudinal axis of the elongate member from a collapsed state. Each electrode element having inner and an outer surface with an electrode portion connected to a source of electrical energy and an insulated portion and a slope surface forming the proximal portion of the inner surface, sloping outward from the longitudinal axis of the elongate member, and a tip portion at the distal portion of the inner surface, angled toward the longitudinal axis of the elongate member. The electrode element inner surfaces in the collapsed state define a central cavity.

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Номер записи: 56

26-09-2013 дата публикации

Minimally Invasive Devices for Multi-Fluid Tissue Ablation

Номер: US20130253488A1

Автор: George Surjan, Nikolai Aljuri

Принадлежит: AQUABEAM LLC

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment.

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Номер записи: 57

03-10-2013 дата публикации

Returned power for microwave applications

Номер: US20130256302A1

Автор: Amrish J. WALKE, Christine M. TATE, Christopher Ah NEW, Chun Yiu Chu, Dinesh I. Mody, Ketan Shroff, Kirby CHIANG

Принадлежит: MicroCube LLC

The present invention related to devices and methods that use returned power (RP) measurements during microwave energy delivery to perform one or more functions. For example, microwave devices and systems that comprise one or more features to measure the returned microwave power. One or more measurements of the returned microwave power may be used to obtain information about one or more of: antenna shape, system status and system performance. One or more measurements of the returned microwave power shaping elements may also be used to obtain information about one or more properties of the target material. The invention also discloses devices and methods for delivering microwave energy to a variety of target materials to achieve a variety of desired microwave effects.

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Номер записи: 58

10-10-2013 дата публикации

Balloon catheter

Номер: US20130267985A1

Автор: Katsuya MIYAGAWA, Misa Kakinoki, Natsumi SHIMAZAKI, Tsunenori Arai, Yuuki Nishimura

Принадлежит: KEIO UNIVERSITY, Nipro Corp

A balloon catheter of novel configuration, which is capable of both efficiently heating a heating element by using a laser light and of ensuring durability by avoiding the laser light directly heating members other than the heating element. Provided is a balloon catheter with a balloon disposed in a distal end section of a shaft and wherein: a tightly wound coil shaped heating element is housed and arranged in the balloon; an optical fiber that irradiates a laser light inside the heating element is disposed; and a supply path that supplies a fluid to inside the balloon through an inside of the heating element and a discharge path that discharges the fluid from inside the balloon through a discharge port positioned on an outside of the heating element are disposed.

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Номер записи: 59

07-11-2013 дата публикации

Delivery devices with coolable energy emitting assemblies

Номер: US20130296647A1

Автор: Martin L. Mayse, Steven C. Dimmer

Принадлежит: Holaira Inc

Systems, delivery devices, and methods to treat to ablate, damage, or otherwise affect tissue. The treatment systems are capable of delivering a coolable ablation assembly that ablates targeted tissue without damaging non-targeted tissue. The coolable ablation assembly damages nerve tissue to temporarily or permanently decrease nervous system input.

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Номер записи: 60

07-11-2013 дата публикации

Method and System for Lead Delivery

Номер: US20130296879A1

Автор: Markus J.C. Lazeroms, Paulus G. Adams

Принадлежит: MEDTRONIC INC

A system and method enables delivery of an implantable medical lead to an implant location. A delivery tool of the system defines the delivery angle of the lead at the implant location. The delivery tool includes an elongate body having at least one lumen extending from a distal portion to a proximal portion. A suction cup is coupled to the distal portion of the elongate body. The suction cup may be configured to be collapsible in a first configuration, prior to deployment, and expandable in a second configuration. The system may include a suction source for drawing tissue at the implant location into the suction cup of the delivery tool that is disposed at the distal portion. The delivery angle of the lead tip is based on the interior cavity of the suction cup rather than the angle of insertion with the suctioned tissue.

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Номер записи: 61

14-11-2013 дата публикации

Enhanced medical device for use in bodily cavities, for example an atrium

Номер: US20130304065A1

Автор: Aldo Antonio Salvestro, Ashkan Sardari, Douglas Wayne GOERTZEN, Fernando Luis De Souza Lopes, Jorge Jaramillo, Peter Josiah Hawes, Saar Moisa

Принадлежит: Kardium Inc

Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation. The device is retractable.

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Номер записи: 62

05-12-2013 дата публикации

Operating system with haptic interface for minimally invasive, hand-held surgical instrument

Номер: US20130321262A1

Автор: Stuart O. Schecter

Принадлежит: Stuart O. Schecter

A haptic system for a minimally invasive, hand-held surgical instrument and the system's various parts including a graphical user haptic interface, one or more haptic interfaces associated with a hand-held handle used to control a sensorized end-effector of the surgical instrument or inserted catheters, associated hardware, and an operating system. The system enables users to acquire, read, modify, store, write, and download sensor-acquired data in real time. The system can provide: an open, universally compatible platform capable of sensing or acquiring physiological signals/data in any format; processing of the sensor acquired data within an operating system; and outputting the processed signals to hardware which generates tangible sensations via one or more haptic interfaces. These tangible sensations can be modified by the user in real time as the system ensures the temporal relationship of sensed fiducial events are not altered or shifted relative to the generated and displayed haptic signals.

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Номер записи: 63

02-01-2014 дата публикации

Applicator and Tissue Interface Module for Dermatological Device

Номер: US20140005645A1

Автор: Daniel Francis, Dong Hoon Chung, Jessi E. Johnson, Kevin Shan, Peter J. Bentley, Steven Kim, Ted Su, Yoav Ben-Haim

Принадлежит: Individual

A tissue interface module has an applicator chamber on a proximal side of the tissue interface module and a tissue acquisition chamber on a distal side of the tissue interface module. The applicator chamber may include: an opening adapted to receive the applicator; an attachment mechanism positioned in the applicator chamber and adapted to attach the tissue interface module to the applicator; a sealing member positioned at a proximal side of the applicator chamber; and a vacuum interface positioned at a proximal side of the applicator chamber and adapted to receive a vacuum inlet positioned on a distal end of the applicator. The invention also includes corresponding methods.

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Номер записи: 64

09-01-2014 дата публикации

Apparatus and method for gastric bypass surgery

Номер: US20140012248A1

Автор: Robert L. Wilcox, Stefan Josef Matthias Kraemer, Thomas James Clement

Принадлежит: Individual

A medical treatment device includes an elongate member having an internal volume, a proximal end, and a distal end, the internal volume extending from the proximal end to the distal end. The medical treatment device further includes a first coupler and a second coupler, the first coupler and the second coupler coupled to the internal volume of the elongate member; a first joining member and a second joining member, the first joining member coupled to the first coupler and the second joining member coupled to the second coupler. The first joining member is configured to attach to a first biological matter location, and the second joining member is configured to attach to a second biological matter location, the second location being distal to the first location. The second coupler is configured for manipulation to align relative the first coupler such that the second biological matter location relocates adjacent the first biological matter location. The first joining member and the second joining member are configured to join the first biological matter location to the second biological matter location.

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Номер записи: 65

16-01-2014 дата публикации

Therapeutic apparatus having insulated region at the insertion area

Номер: US20140018785A1

Автор: David K. Swanson

Принадлежит: Boston Scientific Scimed Inc

Apparatus and methods for insulating tissue during therapeutic procedures.

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Номер записи: 66

16-01-2014 дата публикации

Devices and Systems for Carotid Body Ablation

Номер: US20140018788A1

Автор: Charles Lennox, Howard Levin, Kenneth M. Martin, Marat FUDIM, Mark Gelfand, Mark Leung, Martin M. GRASSE, Marwan Abboud, Michael Brick MARKHAM, Miriam H. Taimisto, Robert Brommer, Scott H. West, Zoar Jacob ENGELMAN

Принадлежит: Cibiem Inc

Methods and endovascular catheters for assessing, and treating patients having sympathetically mediated disease, involving augmented peripheral chemoreflex and heightened sympathetic tone by reducing chemosensor input to the nervous system via transmural carotid body ablation.

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Номер записи: 67

16-01-2014 дата публикации

Flow controlled radiofrequency medical balloon

Номер: US20140018888A1

Автор: Dan Quillin, Derek Sutermeister, Tim Ostroot

Принадлежит: Boston Scientific Scimed Inc

A medical balloon for transmitting radiofrequency energy to a body vessel, the medical balloon comprising at least one pressurizable expanded state, the medical balloon comprising at least one electrical conductor, at least one fluid inlet and at least one fluid outlet providing a fluid flow path through the balloon, and at least one flow restrictor external to the medical balloon, wherein in the pressurizable expanded state, the balloon comprising an electrically conductive fluid circulated through the fluid flow path, the at least one electrical conductor is configured to conduct radiofrequency energy to the electrically conductive fluid and the external flow restrictor restricts fluid flow to maintain the balloon at a predetermined internal pressure.

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Номер записи: 68

06-02-2014 дата публикации

Systems, Methods and Devices Having Stretchable Integrated Circuitry for Sensing and Delivering Therapy

Номер: US20140039290A1

Автор: Bassel de Graff, Roozbeh Ghaffari, William J. Arora

Принадлежит: Individual

System, devices and methods are presented that integrate stretchable or flexible circuitry, including arrays of active devices for enhanced sensing, diagnostic, and therapeutic capabilities. The invention enables conformal sensing contact with tissues of interest, such as the inner wall of a lumen, a the brain, or the surface of the heart. Such direct, conformal contact increases accuracy of measurement and delivery of therapy. Further, the invention enables the incorporation of both sensing and therapeutic devices on the same substrate allowing for faster treatment of diseased tissue and fewer devices to perform the same procedure.

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Номер записи: 69

06-02-2014 дата публикации

Reusable electrode and disposable sheath

Номер: US20140039492A1

Автор: Gary L. Long

Принадлежит: Ethicon Endo Surgery Inc

A surgical instrument, such as an electrical ablation device, including a first elongate body having an insert and a second elongate body having an electrically insulative sheath that defines a bore. A mating element mates the elongate bodies when at least a portion of the insert is received within the bore. The second elongate body is configured to receive electrical energy from the first elongate body and transmit the electrical energy to an electrode. In certain embodiments, the electrical ablation device may include first and second elongate bodies. The first includes an electrically conductive insert configured to electrically couple to an energy source and apply the electrical energy to tissue, and the second includes an electrically insulative sheath defining a bore configured to receive the insert therethrough and move proximally or distally relative to the insert.

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Номер записи: 70

20-02-2014 дата публикации

Modulation of nerves that innervate the liver

Номер: US20140052121A1

Автор: Bobak Robert Azamian, Jonathan Allen Coe, Scott Bradley Vafai

Принадлежит: Metavention Inc

According to some embodiments, a method of treating a subject having diabetes or symptoms associated with diabetes is provided. The method includes delivering a neuromodulation catheter within a vessel (e.g., hepatic artery) having surrounding nerves that innervate the liver (e.g., sympathetic nerves of the hepatic plexus). The method may also include modulating (e.g., disrupting, ablating, stimulating) the nerves by mechanical compression, energy delivery, or fluid delivery.

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Номер записи: 71

27-02-2014 дата публикации

Cryo-ablation refrigerant distribution catheter

Номер: US20140058369A1

Автор: Raphael Hon

Принадлежит: Boston Scientific Scimed Inc

Described herein are methods and devices for performing ablation via a cryoablation catheter. An ablation catheter having a cyroablation chamber at its distal end can be used to achieve a uniform ablation band in or around the pulmonary veins. The cyrochamber can house a dispersion member in fluid communication with a refrigerant supply and can function to evenly distribute received refrigerant over some portion of the inner wall of the cryochamber. As a result of this even distribution of refrigerant within the cyrochamber, uniform ablation of the targeted tissue of the patient can be achieved.

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Номер записи: 72

06-03-2014 дата публикации

Neuromodulation methods using balloon catheter

Номер: US20140066924A1

Автор: Bobak Robert Azamian, Jonathan Allen Coe, Scott Bradley Vafai

Принадлежит: Metavention Inc

According to some embodiments, a method of treating a subject having diabetes or symptoms associated with diabetes is provided. The method includes delivering a neuromodulation catheter within a vessel (e.g., hepatic artery) having surrounding nerves that innervate the liver (e.g., sympathetic nerves of the hepatic plexus). The method may also include modulating (e.g., disrupting, ablating, stimulating) the nerves by mechanical compression, energy delivery, or fluid delivery.

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Номер записи: 73

13-03-2014 дата публикации

Method for Reducing the Absorption of Nutrients Through the Gastrointestinal Tract

Номер: US20140074077A1

Автор: Sanford Lane

Принадлежит: GASTRO-SHAPE TECHNOLOGIES Inc

The present invention features methods for applying a force, such as laser or radiofrequency (RF) energy to the wall of the small intestine, which targets and eliminates a portion of the capillary and vascular network responsible for the transportation of nutrients to the patient. This causes the patient to absorb a reduced percentage of nutrients, which results in a reduced caloric intake. Various types and shapes of applicators are used to deliver the treatment energy, and these applicator devices are within the scope of the present invention. The applicator can be deployed through either a body cavity (e.g., the oral cavity), an open surgical procedure, or a minimally invasive incision or incisions.

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Номер записи: 74

20-03-2014 дата публикации

Methods and apparatus for renal neuromodulation

Номер: US20140081259A1

Автор: Denise Zarins, Douglas Sutton, Erik Thai, Hanson Gifford, III, Howard R. Levin, Mark E. Deem, Mark Gelfand

Принадлежит: Medtronic Ardian Luxembourg SARL

Methods and apparatus are provided for renal neuromodulation using a pulsed electric field to effectuate electroporation or electrofusion. It is expected that renal neuromodulation (e.g., denervation) may, among other things, reduce expansion of an acute myocardial infarction, reduce or prevent the onset of morphological changes that are affiliated with congestive heart failure, and/or be efficacious in the treatment of end stage renal disease. Embodiments of the present invention are configured for percutaneous intravascular delivery of pulsed electric fields to achieve such neuromodulation.

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Номер записи: 75

27-03-2014 дата публикации

Medical device balloon catheter

Номер: US20140088584A1

Автор: Adam J. Royer, Cass A. Hanson, Derek C. Sutermeister, Jeffrey S. Lindquist, Robert N. Squire

Принадлежит: Boston Scientific Scimed Inc

An intravascular catheter for tissue modulation, comprising an elongate member having a proximal end and a distal end, a balloon disposed on the elongate member and having an interior surface, an exterior surface, a lumen defined by the interior surface and at least a first region for transmitting therapeutic energy from the exterior surface of the balloon, wherein the elongate member has a fluid supply lumen having a plurality of ports fluidly connected to the balloon lumen and a fluid evacuation lumen having a port fluidly connected to the balloon lumen.

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Номер записи: 76

27-03-2014 дата публикации

Renal nerve modulation devices

Номер: US20140088586A1

Автор: Cass A. Hanson, Derek C. Sutermeister, Kim G. Davis, Thomas P. JANCARIC

Принадлежит: Boston Scientific Scimed Inc

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a renal nerve modulation device. The renal nerve modulation device may include an elongate shaft. A balloon may be coupled to the shaft. The balloon may have a hydrophilic electrode region. A flexible electrode may be coupled to the shaft and may be disposed within the balloon. The flexible electrode may have a plurality of openings formed therein.

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Номер записи: 77

06-01-2022 дата публикации

Systems and Methods for Percutaneous Division of Fibrous Structures

Номер: US20220000513A1

Автор: Brian J. Deguzman, Lishan Aklog

Принадлежит: Pavmed Inc

A device for dividing a fibrous structure comprising a catheter; an expandable member positioned near a distal end of the catheter and in fluid communication with a lumen of the catheter; and a cutting element situated on an outer surface of the expandable member. A method for dividing a fibrous structure comprising positioning, proximate the fibrous structure, an expandable member having a cutting element situated thereon; expanding the expandable member outwards to tension the fibrous structure across the cutting element; and activating the cutting element to weaken or cut the fibrous structure. A method for treating carpal tunnel syndrome comprising inserting a needle into the carpal tunnel; directing a guidewire to a position proximate the transverse carpal ligament; advancing, along the guidewire, a device having an expandable member and a cutting element; positioning the cutting element; tensioning the ligament across the cutting element; and weakening or cutting the ligament.

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Номер записи: 78

06-01-2022 дата публикации

SYSTEMS, APPARATUSES, AND METHODS FOR DELIVERY OF PULSED ELECTRIC FIELD ABLATIVE ENERGY TO ENDOCARDIAL TISSUE

Номер: US20220000546A1

Автор: Long Gary L., PAGEARD Jean-Luc, THIBAULT Benoit, VISWANATHAN Raju

Принадлежит: Farapulse, Inc.

Systems, devices, and methods for electroporation ablation therapy are disclosed herein, including an inflatable member for positioning an ablation device within a pulmonary vein ostium. An apparatus can include first and second shafts moveable relative to one another, first and second electrodes configured to generate an electric field for ablating tissue, and an inflatable member disposed between the first and second electrodes. In some embodiments, the inflatable member is configured to transition from an undeployed configuration to a deployed configuration in response to movement of the first and second shafts. In some embodiments, the inflatable member in the deployed configuration can engage a wall of a pulmonary vein ostium and direct the electric field generated by the first and second electrodes toward the wall. 1. An apparatus , comprising:a first shaft having a longitudinal axis and defining a lumen;a second shaft disposed within the lumen and having a distal portion that extends from a distal portion of the first shaft, the second shaft moveable along the longitudinal axis relative to the first shaft;a first electrode coupled to the distal portion of the first shaft;a second electrode coupled to the distal portion of the second shaft, the first and second electrodes configured to generate an electric field for ablating tissue; andan inflatable member disposed between the first and second electrodes, the inflatable member configured to transition from an undeployed configuration to a deployed configuration in response to the second shaft being moved proximally relative to the first shaft, the inflatable member in the deployed configuration configured to engage a wall of a pulmonary vein ostium and direct the electric field generated by the first and second electrodes toward the wall.2. The apparatus of claim 1 , wherein the inflatable member includes a wall having:a proximal portion;a distal portion; anda middle portion disposed between the proximal and ...

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Номер записи: 79

02-01-2020 дата публикации

HIGH DENSITY ELECTRODE MAPPING CATHETER

Номер: US20200000359A1

Автор: de la Rama Alan, Hata Cary, La Tim

Принадлежит:

Various embodiments of the present disclosure can include a flexible catheter tip. The flexible catheter tip can comprise an inboard understructure that defines a tip longitudinal axis, wherein the inboard understructure is formed from a first continuous element that includes a first rectangular cross-section. In some embodiments, an outboard understructure can extend along the tip longitudinal axis, wherein the outboard understructure is formed from a second continuous element that includes a second rectangular cross-section. 120-. (canceled)21. A flexible catheter tip , comprising:a first understructure, wherein the first understructure is formed from a first continuous element that includes a first rectangular cross-section; anda second understructure, wherein the second understructure is formed from a second continuous element that includes a second rectangular cross-section.22. The flexible catheter tip of claim 21 , wherein the first understructure includes a first proximal mounting arm and second proximal mounting arm.23. The flexible catheter tip of claim 22 , wherein the first understructure further includes;a first arm understructure that extends distally from the first proximal mounting arm; anda second arm understructure that extends distally from the second proximal mounting arm.24. The flexible catheter tip of claim 23 , wherein the first understructure includes a flared head portion connected to distal ends of the first and second understructure.25. The flexible catheter tip of claim 22 , wherein the second understructure includes a third proximal mounting arm and a fourth proximal mounting arm.26. The flexible catheter tip of claim 25 , wherein:opposing faces of the first proximal mounting arm and the third proximal mounting arm include a first set of frame locks; andopposing faces of the second proximal mounting arm and the fourth proximal mounting arm include a second set of frame locks corresponding to the first set of frame locks.27. The flexible ...

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Номер записи: 80

05-01-2017 дата публикации

ACCESSORY TO ALLOW SENSING AT BALLOON INTERFACE

Номер: US20170000362A1

Автор: Mihalik Teresa

Принадлежит:

A device, system and method for temperature-based lesion formation assessment and mapping functionality using an accessory usable with an over-the-wire balloon catheter. The device may include a first annular element, a plurality of wires coupled to the first annular element, and a second annular element, the plurality of wires passing from the first annular element through the second annular element and into an elongate wire conduit coupled to the second annular element. At least one of the plurality of wires may include at least one temperature sensor and/or at least one mapping electrode. The first annular element coupled to an outer surface of a sheath. As a balloon catheter is advanced out of the sheath lumen, the distal tip of the catheter engages the second annular element and pushes the wires out of the sheath lumen, everting them over the balloon of the catheter. 1. An accessory for a medical device , the accessory comprising:a first annular element;a plurality of wires coupled to the first annular element; anda second annular element, the plurality of wires passing from the first annular element through the second annular element.2. The accessory of claim 1 , further comprising an elongate wire conduit coupled to the second annular element claim 1 , the plurality of wires passing through the second annular element and into the wire conduit.3. The accessory of claim 1 , wherein at least one of the plurality of wires includes at least one of a temperature sensor and a mapping electrode.4. The accessory of claim 3 , wherein at least one of the plurality of wires further includes a reference electrode.5. The accessory of claim 3 , wherein each of the plurality of wires includes at least one temperature sensor and at least one mapping electrode.7. The accessory of claim 1 , wherein the accessory further includes a sheath having a distal portion claim 1 , a proximal portion claim 1 , and a lumen extending between the distal portion and the proximal portion.9. ...

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Номер записи: 81

07-01-2016 дата публикации

Methods and devices for urethral treatment

Номер: US20160000455A1

Автор: Boaz Harari, Raz Bar-On, Shai GOLAN, Yair Feld

Принадлежит: PROARC MEDICAL Ltd

A system and method for treating a constricted bodily lumen, for example, a urethra constricted due to BPH. The method includes a planning stage, during which an area requiring treatment is visually identified, and an execution stage during which the lumen is expanded, a cut is formed in the inner surface of the tissue defining the lumen, and an implant is deployed in the cut. The implant can be an open C-shaped ring, and can be formed of a biodegradable material, or can be removed at a selected time after implantation. The system is formed of a planning device anchorable in the lumen and constructed to facilitate location of an area to be treated, and execution device constructed to deliver an implant, to expand the lumen, to form a cut in the inner surface of tissue defining the lumen, and to release the implant for deployment into the cut.

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Номер записи: 82

02-01-2020 дата публикации

Diaphragm entry for posterior surgical access

Номер: US20200000486A1

Автор: Andy C. Kiser, Earl W. Rogers, James G. Whayne, Sidney D. Fleischman

Принадлежит: Atricure Inc

Methods and devices described herein facilitate diaphragm entry for posterior access of body organs.

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Номер записи: 83

07-01-2021 дата публикации

Catheter system for cryoablation of the vagus nerve

Номер: US20210000520A1

Автор: Georg Daniel Andreas Nollert

Принадлежит: Individual

A catheter system for cryoablation of the stomach, comprising: a catheter and at least one inflatable cryoballoon which is fastened to the catheter and exhibits a contact curve along which the cryoballoon can be brought into contact with the fundus, wherein the contact curve is a closed curve on the surface of the cryoballoon, and the cryoballoon contains a first cooling arrangement which extends along less than three quarters of the length of the contact curve.

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Номер записи: 84

07-01-2021 дата публикации

DEVICE AND METHOD FOR LUNG TREATMENT

Номер: US20210000524A1

Автор: Barry Robert L., Corcoran Dean T., Cran Brian, Lee Sheldon K.

Принадлежит:

This invention relates to the treatment of a patient's lung, for example, a lung exhibiting chronic obstructive pulmonary disease (COPD) and in particular to methods and devices for affecting lung volume reduction, preferably for achieving acute or immediate lung volume reduction following treatment. The lung volume reduction is effected by delivering a condensable vapor at a temperature above body temperature to the desired regions of the patient's lung to damage tissue therein. Blood flow and air flow to the damaged tissue region is essentially terminated, rendering the target region non-functional. Alternative energy sources may be used to effect the thermal damage to the lung tissue. 17.-. (canceled)8. A method for ablating a lung nodule comprising:navigating a vapor delivery catheter to a location proximal a targeted region encompassing the lung nodule; anddelivering a condensable vapor from the delivery catheter into the targeted region sufficient to ablate the lung nodule.9. The method of wherein the step of delivering comprises delivering a predetermined amount of the condensable vapor to the targeted region.10. The method of wherein the predetermined amount of condensable vapor comprises a biocompatible dye.11. The method of further comprising detecting or monitoring the ablation by visually observing the dye moving in the targeted region.12. The method of claim 8 , further comprising applying a focused ablation energy to the targeted region.13. The method of claim 12 , wherein the focused ablation energy comprises HIFU.14. The method of claim 13 , further comprising occluding an airway proximal to the area where the condensable vapor is delivered and such that the condensable vapor flows throughout the targeted region.15. The method of claim 14 , wherein the targeted region comprises segmental bronchi and sub-segmental bronchi.16. The method of claim 8 , further comprising delivering a patient preparation medication into the targeted region via said ...

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Номер записи: 85

07-01-2016 дата публикации

MEDICAL DEVICE AND MEDICAL SYSTEM

Номер: US20160000503A1

Автор: Hyodo Ryoji, KISHI Kosuke

Принадлежит: OLYMPUS CORPORATION

A medical device includes an insertion portion, and a driving mechanism coupled to the insertion portion, wherein the insertion portion includes a treatment portion configured to perform a treatment on a target portion, a joint portion capable of supporting the treatment portion and changing a direction of the treatment portion, a storage portion provided in the joint portion and capable of internally accommodating the treatment portion, and a driving force transmission portion connected to the joint portion and configured to transmit a driving force for changing the direction of the treatment portion to the joint portion, wherein the driving mechanism includes a driving force generation portion configured to generate the driving force, and wherein the treatment portion enters and exits the storage portion by the driving force transmitted from the driving force generation portion to the joint portion through the driving force transmission portion. 1. A medical device comprising:an insertion portion which is capable of being inserted into a body; anda driving mechanism which is coupled to the insertion portion, a treatment portion which is configured to perform a treatment on a treatment target portion;', 'a joint portion which is configured to be capable of supporting the treatment portion and changing a direction of the treatment portion;', 'a storage portion which is configured in the joint portion and capable of internally accommodating the treatment portion; and', 'a driving force transmission portion which is connected to the joint portion and configured to transmit a driving force for changing the direction of the treatment portion to the joint portion,, 'wherein the insertion portion includeswherein the driving mechanism includes a driving force generation portion which is configured to generate the driving force connected to the driving force transmission portion, andwherein the treatment portion enters and exits the storage portion by the driving force ...

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Номер записи: 86

07-01-2021 дата публикации

Medical device for use in bodily lumens, for example an atrium

Номер: US20210000537A1

Автор: Daniel Gelbart, Douglas Wayne GOERTZEN, Fernando Luis De Souza Lopes

Принадлежит: Kardium Inc

A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow, or some other characteristic, for example electrical permittivity or force. The device may selectively ablate portions of the non-fluid tissue based on the information or mapping. The device may detect characteristics (e.g., electrical potentials) indicative of whether ablation was successful. The device may include a plurality of transducers, intravascularly guided in an unexpanded configuration and positioned proximate the non-fluid tissue in an expanded configuration. Expansion mechanism may include helical member(s) or inflatable member(s).

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Номер записи: 87

03-01-2019 дата публикации

CONTROL HANDLE FOR A CONTACT FORCE ABLATION CATHETER

Номер: US20190000546A1

Автор: Romoscanu Alexandre loan

Принадлежит:

A control handle for a steerable catheter body for navigation of the catheter body through a biological lumen and manipulation at a treatment site. The control handle includes a housing assembly that houses a piston assembly and a resistance adjusting assembly. The resistance adjusting assembly can be adjusted to provide the desired frictional characteristics of the user for control of the resistance between the piston assembly and the housing assembly. In one embodiment, the piston assembly is configured to provide a frictional resistance that varies dynamically to substantially match the restorative force across the range of catheter tip deflection. Other embodiments include a vibrating member that provides tactile feedback to the operator to indicate conditions at the distal end of the catheter, such as contact force. 120-. (canceled)21. A control handle , comprising:a housing assembly having a proximal portion and a distal portion and defining a central axis, wherein the proximal portion defines a central bore concentric with the central axis, the central bore including a radial step that defines a shoulder concentric about the central axis;a deformable gasket disposed adjacent to the radial step; anda tapered glide assembly disposed within the central bore, wherein the tapered glide assembly includes an angled glide surface and wherein the angled glide surface is in contact with the deformable gasket.22. The control handle of claim 21 , wherein the angled glide surface has a proximal edge and a distal edge.23. The control handle of claim 22 , wherein the angled glide surface is tapered radially inward from the proximal edge of the angled glide surface to the distal edge of the angled glide surface claim 22 , such that an outer diameter of the tapered glide assembly is narrower at the distal edge than the proximal edge.24. The control handle of claim 23 , wherein translation of the tapered glide assembly in a distal direction generates an increased frictional ...

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Номер записи: 88

02-01-2020 дата публикации

Adjustable clamp systems and methods

Номер: US20200000511A1

Автор: Ara Stephanian, Dwight P. Morejohn, Michael J. Banchieri, Tamer Ibrahim

Принадлежит: Atricure Inc

Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.

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Номер записи: 89

02-01-2020 дата публикации

SYSTEM FOR INDUCING DESIRABLE TEMPERATURE EFFECTS ON BODY TISSUE

Номер: US20200000519A1

Автор: Blanck Arthur G., Briggs Len, Gustus Rolfe Tyson, Hoey Michael F., Perry Mike, Stone Corbett W.

Принадлежит:

A catheter and catheter system may be used to treat disease tissue by gentle heating in combination with gentle or standard dilation. An elongate flexible catheter body with a radially expandable balloon having a plurality of electrodes engage tissue including diseased tissue when the structure expands. 1. A system , comprising:a catheter body having a proximal end and a distal end with an axis therebetween;a radially expandable member having a low profile insertion configuration and a larger profile configuration; anda plurality of electrode pairs included on a plurality of flexible circuits, the flexible circuits distributed about an outer surface of the expandable member, so as to define a plurality of remodeling zones extending circumferentially about a wall of a body lumen when the expandable member is in the larger profile configuration; andwherein the plurality of electrode pairs is configured to transmit a tissue remodeling energy to each of the plurality of remodeling zones such that the tissue remodeling energy transmitted to remodeling zones including both a target tissue and a collateral tissue heats the target tissue sufficiently to efficaciously alter the target tissue without causing thermal damage to the collateral tissue.2. The system of claim 1 , wherein each of the flexible circuits includes an associated bipolar electrode pair.3. The system of claim 2 , wherein the electrodes of each bipolar electrode pair are disposed on its associated flexible circuit so as to have a predetermined bipolar pair separation distance therebetween when the expandable member is in the larger profile configuration.4. The system of claim 2 , wherein the bipolar electrode pairs are configured to be energized with RF energy claim 2 , and wherein the electrodes of the electrode pairs are circumferentially separated.5. The system of claim 4 , wherein a circumferential distance between the electrodes of the electrode pairs is within a range from about 0.25 to 2.5 mm.6. The ...

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Номер записи: 90

04-01-2018 дата публикации

An improved catheter and method of manufacture thereof

Номер: US20180000540A1

Автор: David Ogle, Roman GREIFENEDER

Принадлежит: CATHRX LTD

A sheath adapted for use with a catheter is disclosed comprising an electrical lead having a proximal end and a distal end and a lumen extending from the proximal end to the distal end, the electrical lead including a tubular member of non-conductive material. At least a first set of electrical conductors and a second set of electrical conductors extend from the proximal end to the distal end laid on the non-conductive tubular member, and an outer layer of non-conductive material is applied over the electrical conductors to cover the conductors. One or more electrodes are disposed on a distal portion of the sheath. Each electrode is in electrical communication with at least one of the electrical conductors through the outer layer. The first set of electrical conductors is helically wrapped around the lumen and the second set of electrical conductors is helically wrapped around the first set of electrical conductors.

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Номер записи: 91

04-01-2018 дата публикации

FLEXIBLE ELECTRODE

Номер: US20180000542A1

Автор: Marass Tim, Marrs James C., Oliverius Andrew Ryan

Принадлежит:

A flexible electrode includes an internal spring with an increased spring rate and/or distal-end and proximal-end turns having increased diameters. In an embodiment, a catheter electrode comprises an electrode body defining a cavity therein, the cavity comprising a first diameter; and a spring disposed within the cavity, the spring comprising a second diameter; wherein the first diameter is equal to the second diameter. 1. A catheter electrode comprising:an electrode body defining a cavity therein, the cavity comprising a first diameter; anda spring disposed within the cavity, the spring comprising a second diameter;wherein the first diameter is equal to the second diameter.2. The catheter electrode of claim 1 , wherein the electrode body is flexible.3. The catheter electrode of claim 1 , wherein the first diameter comprises a diameter of the cavity.4. The catheter electrode of claim 1 , wherein the spring comprises a plurality of turns claim 1 , wherein the plurality of turns comprises a distal-end turn and a proximal-end turn claim 1 , and wherein the second diameter comprises an outer diameter of at least one of the distal-end turn and the proximal-end turn.5. The catheter electrode of claim 4 , further comprising:a distal cap portion adjacent to the distal-end turn; anda proximal stem portion adjacent to the proximal-end turn.6. The catheter electrode of claim 5 , wherein the distal-end turn and the distal cap portion are welded together to form a first contact surface; and wherein the proximal-end turn and the proximal stem portion are welded together to form a second contact surface.7. The catheter electrode of claim 1 , wherein the catheter tip electrode is irrigated.8. The catheter electrode of claim 1 , further comprising a thermocouple or thermistor.9. The catheter electrode of claim 1 , wherein the spring has a spring rate of about 150 grams per inch or greater.10. A catheter electrode comprising:an electrode body, the electrode body defining a cavity ...

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Номер записи: 92

05-01-2017 дата публикации

SPRAY NOZZLE DESIGN FOR A CATHETER

Номер: US20170000545A1

Автор: LALONDE Jean-Pierre

Принадлежит:

A catheter-based medical device including controlled refrigerant dispersion is disclosed. The device includes a fluid injection tube that carries refrigerant from a coolant supply to the distal portion of the device. A fluid dispersion unit is disposed on the distal end of the fluid tube to control the angle of distribution for refrigerant that is expelled from the fluid injection tube. Controlling the angle of distribution for the refrigerant facilitates dispersion of the fluid in a predetermined spray pattern. The disclosure further relates to cryoablation treatment systems incorporating such a catheter, and to cryoablation treatment methods for tissue treatment to address various conditions suitably treatable with cryoablation. 1. A cryoablation device comprising:a flexible outer tubular member including a distal end;an expandable chamber defining a proximal end coupled to the distal end of the outer tubular member;an injection tubular member substantially spanning the length of the outer tubular member and in fluid communication with an interior of the expandable chamber, the injection tubular member having a proximal end configured to he coupled to a source of cryoablation fluid and a distal end within the expandable chamber, the distal end of the injection tubular member being distal to the distal end of the outer tubular member;a fluid nozzle located in a distalmost end face of the distal end of the injection tubular member;a fluid dispersion unit coupled to the distal end of the injection tubular member and having a longitudinal axis, the distal end of the injection tubular member being coiled about the longitudinal axis, the fluid nozzle being located within the fluid dispersion unit and being configured to direct a flow of fluid into the fluid dispersion unit in a direction that is tangential to the longitudinal axis of the fluid dispersion unit, the fluid dispersion unit having an opening at the distalmost end face; anda compression spring distal to the ...

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Номер записи: 93

05-01-2017 дата публикации

METHODS AND APPARATUSES FOR REMODELING TISSUE OF OR ADJACENT TO A BODY PASSAGE

Номер: US20170000560A1

Автор: Dandler Andres, Espinosa Joseluis, Henry Lee, MATHUR PRABODH, NASSIF RABIH

Принадлежит:

Medical devices and methods for making and using the same are disclosed. An example device may include an expandable balloon including an outer surface. At least one flexible circuit may be mounted on the outer surface of the expandable balloon. The at least one flexible circuit may include a first insulating layer, at least one heat sensing device positioned at least partially within the first insulating layer, a conductive layer above the first insulating layer, at least a portion of which is electrically coupled to the heat sensing device, a second insulating layer above the conductive layer, and at least one electrode associated with the conductive layer. 120.-. (canceled)21. A method of treatment comprising: (i) an expandable balloon coupled to the catheter and including an outer surface; and', '(ii) at least one flexible circuit mounted on the outer surface of the expandable balloon, the at least one flexible circuit including: (1) a first insulating layer, (2) at least one heat sensing method positioned at least partially within the first insulating layer, (3) a conductive layer above the first insulating layer, at least a portion of which is electrically coupled to the heat sensing method, (4) a second insulating layer above the conductive layer, and (5) at least one electrode associated with the conductive layer;, '(a) inserting a catheter into a renal artery of a patient, the catheter comprising(b) expanding the balloon in the renal artery; and(c) driving energy through the at least one electrode so as to therapeutically affect one nerve proximate the renal artery.22. The method of claim 21 , wherein the at least one electrode comprises at least a pair of bipolar electrodes23. The method of claim 22 , wherein the heat sensing method is positioned between the pair of bipolar electrodes.24. The method of claim 22 , wherein the heat sensing method is electrically coupled to one of the pair of bipolar electrodes.25. The method of claim 22 , wherein the pair of ...

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Номер записи: 94

04-01-2018 дата публикации

Device and Method for Treatment of Barrett's Esophagus

Номер: US20180000616A1

Автор: Siersema Peter Derk

Принадлежит:

Barrett's esophagus is a serious complication of GERD. It is characterized by the replacement of the normal stratified squamous epithelium lining of the esophagus by simple columnar epithelium with goblet cells (which are usually found lower in the gastrointestinal tract). A method comprising deploying multiple stents to cause pressure ischemia and subsequent necrosis of the mucosal layer of the esophagus which is affected with the Barrett's disease is disclosed. A pair of implantable stents having specific characteristics is disclosed which can be deployed in the esophagus to cause necrosis of the mucosal layer of the esophagus through induction pressure. 1. A method for treating Barrett's esophagus in a patient comprising:identifying an affected region in the esophagus;deploying an at least partially uncovered first stent within the esophagus wherein the first stent overlaps at least the entire affected region in the esophagus;leaving said first stent within the esophagus for a first predetermined time period;deploying an at least partially covered second stent within the esophagus after said predetermined time period such that the second stent is positioned within the first stent, thereby positioning the first stent between the second stent and the affected region in the esophagus, and extends beyond the first stent by a predefined distance; and,removing the first stent and second stent after a second predetermined time period.2. The method of claim 1 , further comprising ablating tissues in the affected region before deploying the first stent.3. The method of claim 1 , further comprising ablating tissues in the affected region after removing the first stent and the second stent.4. The method of claim 1 , wherein said first predetermined time period is at least seven days from the deploying of the first stent.5. The method of claim 1 , wherein said second predetermined time period ranges from ten to fourteen days from the deployment of the second stent.6. The ...

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Номер записи: 95

07-01-2021 дата публикации

SENSING AND MAPPING CATHETER FOR GUIDING AND SUPPORTING BALLOON CATHETER

Номер: US20210001083A1

Автор: Garcia Ariel, Highsmith Debby Esther, Lovejoy Erica Evelyenne, Massoud Hamid

Принадлежит:

A catheter configured to guide and support a balloon catheter for use in and around a pulmonary vein and its ostium, has an elongated shaft and a distal assembly, the elongated shaft including a proximal portion with a first flexibility and a distal portion including a second flexibility greater than the first flexibility, the distal assembly including an elbow portion and a generally circular portion generally transverse to the longitudinal axis, the generally circular portion including a third flexibility greater than the second flexibility. Single axis location sensors and sensing ring electrodes are carried on the generally circular portion. 1. An electrophysiology catheter , comprising:an elongated shaft defining a longitudinal axis of the catheter, the shaft including a proximal portion with a first flexibility and a distal portion including a second flexibility greater than the first flexibility;a distal assembly including an elbow portion and a generally circular portion generally transverse to the longitudinal axis, the generally circular portion including a third flexibility greater than the second flexibility;a single axis sensor situated in the generally circular portion; anda ring electrode situated on the generally circular portion.2. The catheter of claim 1 , wherein the elongated shaft includes a hypotube with a lumen.3. The catheter of claim 2 , wherein the hypotube is coextensive with the proximal portion of the shaft.4. The catheter of claim 3 , further including a preformed support member with shape memory that extends at least through the distal assembly claim 3 , wherein a distal end of the preformed support member is received in the lumen of the hypotube.5. The catheter of claim 1 , further including a preformed support member with shape memory that extends at least through the distal assembly.6. The catheter of claim 5 , wherein the preformed support member includes a proximal portion that extends through the shaft.7. The catheter of claim 5 ...

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Номер записи: 96

02-01-2020 дата публикации

CATHETERS AND MANIPULATORS WITH ARTICULABLE ENDS

Номер: US20200001053A1

Автор: Rafiee Nasser

Принадлежит:

The disclosure provides various embodiments of catheters having articulable ends that can be used for various procedures. Embodiments of methods are also provided that can be performed with catheters in accordance with the present disclosure. 1. An elongate catheter having a proximal end and a distal end comprising:a) an elongate tubular main body having a proximal end, a distal end, and defining at least one elongate passage therethrough, the elongate tubular main body defining a longitudinal axis along its length;b) a first elongate inner body having a proximal end and a distal end that is slidably disposed within the at least one elongate passage of the elongate tubular main body, the distal end of the first inner elongate body being configured to curl away from the longitudinal axis in a proximal direction when the first elongate inner body is advanced distally with respect to the main body; andc) a second elongate inner body having a proximal end and a distal end that is slidably disposed within the at least one elongate passage of the elongate tubular main body, and slidably disposed with respect to the first inner body, the distal end of the second inner elongate body being configured to curl away from the longitudinal axis toward the deployed proximally oriented distal end of the first elongate inner body when the second elongate inner body is advanced distally with respect to the main body.2. The elongate catheter of claim 1 , wherein each of the first elongate inner body and second elongate inner body each define a lumen along their respective lengths claim 1 , and further wherein the lumen of the second elongate inner body includes a movable body slidably disposed therein having a distal end.3. The elongate catheter of claim 2 , wherein the movable body includes a guidewire claim 2 , and further wherein the lumen of the first elongate inner body includes a snare catheter configured to be deployed from the distal end of the first elongate inner body to ...

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Номер записи: 97

13-01-2022 дата публикации

Balloon catheter and electrophysiological system

Номер: US20220008111A1

Автор: BO Liang, Jiaqiang JIANG, Qiancheng ZHAO, Yiyong Sun, Yunzhu XI

Принадлежит: Shanghai Microport EP MedTech Co Ltd

A balloon catheter (100) and an electrophysiological system, which aim to improve the operability of accurately monitoring the balloon surface temperature at the surface of a double-layered balloon (110). The balloon catheter (100) comprises a catheter body (130), a double-layered balloon (110), at least one temperature measuring element (120), and at least one adhesion piece (140); the temperature measuring element (120) is disposed in an interlayer (113) formed by an inner layer balloon (112) and an outer layer balloon (111); the adhesion piece (140) is adheringly connected to the temperature measuring element (120), and is simultaneously adheringly connected to the inner layer balloon (112) or the outer layer balloon (111); the temperature measuring element (120) is attached to the inner layer balloon (112) or the outer layer balloon (111) by means of the adhesion piece (140); when the double-layered balloon (110) is deformed, the adhesion piece (140) may be displaced relative to the inner layer balloon (112) or outer layer balloon (111) connected to the adhesion piece (140), which enables the temperature measuring element (120) to be displaced relative to the inner layer balloon (112) or outer layer balloon (111) connected to the adhesion piece (140).

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Номер записи: 98

13-01-2022 дата публикации

Neuromodulation catheters having jacketed neuromodulation elements and related devices, systems, and methods

Номер: US20220008127A1

Автор: Don Tran, Jaime Rios, Rudy Beasley, Sina Som, Sukyoung Shin

Принадлежит: Medtronic Ardian Luxembourg SARL

A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.

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Номер записи: 99

01-01-2015 дата публикации

Methods for thermally-induced renal neuromodulation

Номер: US20150005676A1

Автор: Benjamin J. Clark, Denise Zarins, Erik Thai, Howard R. Levin, Mark Gelfand, Nicolas Zadno

Принадлежит: Medtronic Ardian Luxembourg SARL

Methods and apparatus are provided for thermally-induced renal neuromodulation. Thermally-induced renal neuromodulation may be achieved via direct and/or via indirect application of thermal energy to heat or cool neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers. In some embodiments, parameters of the neural fibers, of non-target tissue, or of the thermal energy delivery element, may be monitored via one or more sensors for controlling the thermally-induced neuromodulation. In some embodiments, protective elements may be provided to reduce a degree of thermal damage induced in the non-target tissues.

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Номер записи: 100