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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 8235. Отображено 100.
26-01-2012 дата публикации

Methods and apparatus for assesment and treatment of body cavities

Номер: US20120022380A1
Автор: Ary S. Chernomorsky
Принадлежит: Transmed7 LLC

Methods and apparatus for detection, assessment and optionally treatment of the cancerous tissue in the natural and manmade body cavities. An expandable cavity assessment device that is coupled with cancer detecting elements is placed in a cavity in close proximity to the site of cancerous tissue. The cavity assessment device may receive an optical fiber, or other type of energy conduit and potentially a radioactive source for interstitial radiation therapy. The cavity assessment device may be equipped with a balloon member coupled with electro conductive elements. Further, a system facilitating substance communication with the internal surface of the cavity is provided.

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Номер записи: 1
09-02-2012 дата публикации

Devices and methods for low shearing local delivery of therapeutic agents to the wall of a bodily lumen

Номер: US20120035588A1
Автор: Cassandra Ann Piippo Svendsen, Jeffrey A. McBroom, Kristina Tibesar Jensen, Ryan D. Welty, Victor Leo Schoenle
Принадлежит: Cardiovascular Systems Inc

The invention relates generally to devices and methods for local delivery of therapeutic agents to the wall of a bodily lumen with minimal shearing damage to the therapeutic agents, more specifically to the wall of a blood vessel following atherectomy. A preferred delivery mechanism comprises a balloon, or double balloon, though any distal catheter design may be used to reduce shear stress and to conserve and/or isolate the therapeutic substance.

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Номер записи: 2
09-02-2012 дата публикации

Catheter, a balloon catheter and a method and apparatus for monitoring the transverse cross-section of a stoma

Номер: US20120035642A1
Автор: Adrian Mchugh, Eoin Bambury, John O'dea
Принадлежит: Flip Technologies Ltd

A balloon catheter ( 1 ) comprises a catheter ( 2 ) and a balloon ( 6 ) located on the distal end of the catheter. A pair of stimulating electrodes ( 15 ) for receiving a constant current stimulating signal when the balloon ( 6 ) is inflated with an electrically conductive medium and a plurality of sensing electrodes ( 16 ) for producing voltage response signals are located on the catheter ( 2 ). The voltage response signals are indicative of the values of the transverse cross-sectional area of the balloon ( 6 ) adjacent the sensing electrodes ( 16 ). A first lumen < 9 ) accommodates the inflating medium to and from the balloon ( 6 ), and a second lumen ( 19 ) accommodates electrically conductive wires ( 18 ) to the stimulating and sensing electrodes ( 15,16 ). A pressure sensing dement ( 21 ) is located in a protective housing ( 22 ) in the second lumen ( 19 ), and communicates through a communicating opening ( 26 ) in the protective housing ( 22 ) and through a communicating port ( 24 ) in the catheter ( 2 ) with a hollow interior region ( 7 ) of the balloon ( 6 ).

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Номер записи: 3
01-03-2012 дата публикации

Perfusion circuit and use therein in targeted delivery of macromolecules

Номер: US20120053502A1
Автор: Charles R. Bridges, Charles Yarnall, Hansell H. Stedman
Принадлежит: University of Pennsylvania Penn

A perfusion circuit and a use thereof for delivering a substance to a subject's heart in situ during cardiopulmonary bypass surgery are provided. The perfusion circuit defines a path for re-circulating a solution containing a macromolecular complex through a coronary circulation circuit through a subject's heart during a surgical procedure in which the substance is prevented from being delivered to the subject's other organs.

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Номер записи: 4
10-05-2012 дата публикации

Drug delivery medical devices

Номер: US20120116305A1
Автор: John E. Papp
Принадлежит: Abbott Cardiovascular Systems Inc

Medical devices for delivering a bioactive agent and methods of use thereof are provided. The medical devices include micro-needles integrated within a balloon of a catheter. The balloon can include dimples, cavities or a variable thickness membrane in which the micro-needles are integrated.

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Номер записи: 5
05-07-2012 дата публикации

Methods and devices to curb appetite and/or reduce food intake

Номер: US20120172999A1
Автор: Kenneth F. Binmoeller
Принадлежит: Individual

The present invention relates to methods and devices that help to curb appetite and/or reduce food intake. In one embodiment, the methods and devices of the present invention include a small intestinal/duodenal insert comprising an elongated member with at least one flow reduction element that can cause the stimulation of one or more biological signals of satiety.

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Номер записи: 6
02-08-2012 дата публикации

Apparatus and methods for treating obstructions within body lumens

Номер: US20120197193A1
Автор: Gwendolyn Watanabe, Jeffrey A. Krolik, Juan Domingo, Lucas Fernandez, Ray Betelia
Принадлежит: Hotspur Technologies LLC

Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.

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Номер записи: 7
20-09-2012 дата публикации

Pressure sensing catheter

Номер: US20120234434A1
Автор: David M. Woodruff, Phillip M. Leopold
Принадлежит: Gentera Holdings LLC

This invention provides a pressure sensing catheter, and method for using the same, which eliminates the practitioners' need to fill the catheter with fluid manually prior to insertion, and thereby increases the accuracy and ease of the overall pressure-sensing procedure. The illustrative catheter includes, in its proximal end, a transducer base or housing that is permanently attached to the catheter shaft. The base includes, inserted thereinto, one or more miniaturized pressure transducer assemblies, which are in fluid communication with corresponding pressure lumens that extend down the shaft and are in communication with one or more predetermined balloons by discrete channels or ports, which provide a fluid passage between the interior space of the balloon and the corresponding pressure lumen. The integral assembly includes a predetermined, previously installed charge of fluid that extends from the transducer, through the corresponding pressure lumen and into the interior volume of the sensing balloon.

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Номер записи: 8
27-09-2012 дата публикации

Enteral Feeding Catheter Device with an Indicator

Номер: US20120245519A1
Автор: Adrienne A. Hershey, Donald J. McMichael, John A. Rotella
Принадлежит: Kimberly Clark Worldwide Inc

A balloon catheter device includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. An inflatable balloon is located at a distal end of the catheter and is inflated through an inflation valve located on a base. An internal cavity is defined in the base and is in fluid communication with the inflatable balloon. A translucent window is disposed over the internal cavity such that an interior volume of the cavity is externally viewable. Introduction of a colored fluid through the inflation valve to inflate the balloon results in the colored fluid also being present in the internal cavity, thereby providing an externally visual indication of the inflation state of the balloon.

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Номер записи: 9
11-10-2012 дата публикации

Biofeedback controlled deformation of sinus ostia

Номер: US20120259217A1
Автор: Erhan H. Gunday, Lawrence J. Gerrans
Принадлежит: Sanovas Inc

A method of dilating a paranasal sinus ostium of a patient, which includes inserting a catheter having at least one balloon into a sinus ostium having an ostial wall, inflating the balloon by supplying fluid thereto such that the balloon exerts a force on the ostial wall, determining at least one parameter of the balloon, establishing an amount the balloon can be inflated without fracturing the sinus ostium based at least in part on the determined parameter of the balloon, and dilating the sinus ostium by inflating the balloon to an amount that does not exceed the established amount.

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Номер записи: 10
18-10-2012 дата публикации

Catheter device

Номер: US20120265236A1
Автор: Matthias Wesselmann
Принадлежит: BIOTRONIK AG

A catheter device for expanding stenoses in the branching region of body vessels, comprising two catheter branches, the length of which is adjustable, and each of which has an outer distal rolling membrane, and which are interconnected at or near the distal end of a common catheter shaft.

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Номер записи: 11
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: 12
28-02-2013 дата публикации

Triple Balloon Occlusion and Infusion Catheter

Номер: US20130053758A1
Автор: Melina R. Kibbe
Принадлежит: Northwestern University

Disclosed are balloon catheters for forming liquid cast biodegradable arterial stents, typically, the balloon catheters include multiple balloons and multiple ports and include an element for promoting or initiating curing of a polymer solution via polymerization or cross-linking.

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Номер записи: 13
28-02-2013 дата публикации

Medical balloon and balloon catheter assembly

Номер: US20130053770A1
Автор: David A. Drewes, Jr., Steen Aggerholm, Thomas Lysgaard
Принадлежит: Cook Medical Technologies LLC

A medical balloon ( 10 ) of a balloon catheter assembly ( 70 ) includes a balloon wall ( 22 ) formed of at least two layers ( 30, 32 ). The first layer ( 30 ) is made of an impervious polymeric material. The second layer ( 32 ), which is integral with the first layer ( 30 ) is made of a radiopaque and/or echogenic material and a polymeric material. In the preferred embodiment, there is provided 60 to 80% by weight of radiopaque material in the second layer ( 32 ). It has been found that these concentrations of radiopaque material provide good visibility of the balloon under ultrasonic imaging.

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Номер записи: 14
07-03-2013 дата публикации

Balloon catheters and methods for use

Номер: US20130060316A1
Автор: Archimedes Sanati, Farhad Khosravi
Принадлежит: Ostial Corp

Apparatus and methods are provided for flaring a stent deployed within a branch vessel including an ostium communicating with a main vessel, a first end of the stent extending at least partially from the branch. A catheter is provided that includes a first balloon carried on its distal end, and a second balloon that includes a distal section overlying at least a portion of the first balloon and a proximal section. The catheter distal end is introduced into the main vessel and positioned through the ostium and stent into the branch until the first balloon is disposed within the stent. The first balloon is expanded to anchor the stent, and the second balloon is expanded to flare the first end of the stent. Optionally, the first balloon is expanded further, e.g., to expand the stent within the branch body lumen and/or dilate the lesion.

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Номер записи: 15
11-04-2013 дата публикации

Operating A Vessel Occlusion Catheter

Номер: US20130090678A1
Автор: HOEM Jon H., Kohr Oliver A.
Принадлежит: MIRACOR MEDICAL SYSTEMS GMBH

Some systems and methods for operating a vessel occlusion catheter may include a control and inflation device to control the filling of the balloon in such a manner that the vessel wall will not be overstressed while the safe occlusion of the blood vessel is achieved. 1. A control and inflation device for a balloon catheter , comprising: a connection for an inflation lumen of a balloon catheter , a pressure tank , a vacuum tank and a pump , wherein switching valves are arranged in a manner that the connection for the inflation lumen is alternately connectable with the vacuum tank and with the pressure tank.2. The control and inflation device of claim 1 , wherein the pressure tank is alternately connectable with the connection for the inflation lumen and claim 1 , via the pump claim 1 , with the vacuum tank.3. The control and inflation device of claim 1 , further comprising a pressure measuring device in fluid communication with a connection for a second catheter lumen of the balloon catheter different from the inflation lumen of the balloon catheter.4. The control and inflation device of claim 1 , wherein the pressure tank claim 1 , the pump and the vacuum tank form a closed fluid loop together with the inflation lumen of the catheter.5. The control and inflation device of claim 4 , wherein the closed loop comprises a connection for filling the loop with fluid.6. The control and inflation device of claim 1 , further comprising a condensate pump connected to the vacuum tank.7. The control and inflation device of claim 1 , wherein a fluid system comprising the pressure tank claim 1 , the pump claim 1 , the vacuum tank claim 1 , and the balloon catheter and any connection lines therebetween is filled with such an amount of fluid that the pressure within the fluid system is smaller than 2 bar at a full pressure equalization of all components.8. The control and inflation device of claim 1 , wherein the balloon catheter comprises a coronary sinus occlusion catheter having ...

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Номер записи: 16
11-04-2013 дата публикации

Method and apparatus for regional and whole body temperature modification

Номер: US20130090709A1
Автор: Alex T. Roth, Nicole Denise Bloom, Timothy R. Machold, Wade A. Keller
Принадлежит: Zoll Circulation Inc

Methods and apparatuses for temperature modification of a patient, or selected regions thereof, including an induced state of hypothermia. The temperature modification is accomplished using an in-dwelling heat exchange catheter within which a fluid heat exchange medium circulates. A heat exchange cassette of any one of several disclosed variations is attached to the circulatory conduits of the catheter, the heat exchange cassette being sized to engage a cavity within one of various described re-usable control units. The control units include a heater/cooler device, a user input device, and a processor connected to receive input from various sensors around the body and the system. The heater/cooler device may be thermoelectric to enable both heating and 15 ″ cooling based on polarity. A temperature control scheme for ramping the body temperature up or down without overshoot is provided. The disposable heat exchange cassettes may include an integral pump head that engages with a pump drive mechanism within the re-usable control unit. More than one control unit may be provided to receive the same heat exchange cassette so that, for example, a large capacity control unit can be used initially, and a smaller, battery-powered unit can be substituted once the patient reaches the desired target temperature.

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Номер записи: 17
18-04-2013 дата публикации

Balloon catheter system for sealing puncture points in body cavities, hollow organs or in percutaneous systems in mammals

Номер: US20130096499A1
Автор: TCHIRIKOV Michael
Принадлежит: UNIVERSITATSMEDIZIN DER JOHANNES GUTENBERG UNIVERS

The present invention relates to a balloon catheter system for sealing puncture points or openings in body cavities, hollow organs or in percutaneous drainage operations in mammals, consisting of a filling catheter on the distal end of which a first balloon can be filled with the filling medium is arranged with a further balloon arranged proximally spaced apart therefrom. The balloons close the puncture point or the opening on the two sides in the filled state of the balloon. A hollow needle open at the shaft or the shaft end can be guided in the lumen of the filling catheter for filling the two balloons with the filling medium, wherein the shells of the two balloons enclose the shaft of the filling catheter. The filling catheter in each case has an opening arranged in the balloon lumen to fill the two balloons. 2161720221420221416. Balloon catheter system according to claim 1 , characterised in that a further infusion catheter () claim 1 , the distal end () of which passes through the two balloons ( claim 1 , ) claim 1 , is arranged on the filling catheter () claim 1 , the shells of the two balloons ( claim 1 , ) enclosing both the filling catheter () and the infusion catheter ().31416. Balloon catheter system according to either or claim 1 , characterised in that the filling catheter () and the infusion catheter () or the catheter channels are configured in one component.41816. Balloon catheter system according to any one of the preceding claims claim 1 , characterised in that a guide wire () which can be drawn out of the catheter is additionally arranged in the lumen of the infusion catheter ().59114122022. Balloon catheter system according to any one of the preceding claims claim 1 , characterised in that the proximal end (.) of the filling catheter () and/or the hollow needle () is connected to a port system or another subcutaneous filling device to fill the two balloons ( claim 1 , ).69216. Balloon catheter system according to claim 5 , characterised in that ...

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Номер записи: 18
02-05-2013 дата публикации

Double bellow occluder for sclerotherapy

Номер: US20130110081A1
Автор: Michael Green, Neil Burkhart, Wouter Erik Roorda
Принадлежит: Abbott Cardiovascular Systems Inc

The disclosed subject matter describes systems and methods of delivering a therapeutic agent, such as a sclerosing agent, to the walls of a blood vessel to perform sclerotherapy. In an exemplary embodiment a catheter includes a guidewire catheter having at least one guidewire lumen extending therethrough and a slidable concentric tube disposed over the guidewire catheter. At least one bellow is coupled to the concentric tube and configured for conversion between an unexpanded and expanded configuration wherein movement of the concentric tube in a first direction causes the at least one bellow to expand and movement of the concentric tube in a second direction causes the at least one bellow to contract. Additionally, the concentric tube contains at least one port for delivery of a therapeutic agent, e.g. a sclerosing agent. The at least one bellow expands and contracts via mechanical forces.

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Номер записи: 19
09-05-2013 дата публикации

BALLOON ASSEMBLIES HAVING CONTROLLABLY VARIABLE TOPOGRAPHIES

Номер: US20130116655A1
Автор: Bacino John E., Campbell Carey V., Cully Edward H., Duncan Jeffrey B., Paget Douglas S., Shaw Edward E., Squeri John M., Trapp Benjamin M., Vonesh Michael J.
Принадлежит:

Various embodiments provide a device comprising a balloon disposed at least partially along a template, the template including an aperture, wherein the template has a substantially cylindrical portion that resists deformation in a radial direction, wherein the balloon expands radially during inflation, wherein a portion of the balloon at least partially protrudes about the aperture. Other embodiments are directed toward balloons having textured surfaces. 1. A balloon assembly comprisinga compliant balloon having an inflated configuration and an upper distension limit;a film template having an outer surface and extending along at least a portion of the compliant balloon for at least a portion of its length and having an upper distension limit;wherein the film template includes at least one aperture andwherein the compliant balloon outwardly extends about the at least one aperture relative to the outer surface of the film template in the inflated configuration andwherein the upper distension limit of the compliant balloon is greater than the upper distension limit of the film template.2. The assembly of claim 1 , wherein the compliant balloon comprises a size limiting layer which is disposed around at least a portion of the compliant balloon.3. The assembly of claim 2 , wherein the size limiting layer comprises at least two layers of a helically wrapped polymeric tape.4. The assembly of claim 2 , wherein the size limiting layer comprises a high-strength ePTFE.5. The assembly of claim 1 , further comprising a therapeutic agent underlying the film template claim 1 , wherein at least a portion of the therapeutic agent is conveyed out of at least one aperture upon the balloon extending through the aperture.6. The assembly of claim 1 , further comprising a secondary template disposed over the film template.7. The assembly of claim 6 , wherein the secondary template includes a secondary aperture claim 6 , wherein the secondary aperture at least partially overlaps with the ...

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Номер записи: 20
23-05-2013 дата публикации

INFLATION CUFF WITH TRANSIENT-RESISTANT OVER-PRESSURE PREVENTOR

Номер: US20130131626A1
Автор: Hantke Richard J., Rdzok John E., Thompson Robin RAy
Принадлежит: Holister Incorporated

A catheter system () with a valve assembly () that expels excess inflation fluid when a cuff or balloon () of the catheter system is overinflated. The valve assembly includes a luer-activated spool () biased toward a sealed condition, a precision relief/check valve () biased toward a scaled condition, a primary valve body outlet (), a valve body feedback inlet (), and a secondary valve body outlet (). An inflation lumen () is in fluid communication with the primary valve body outlet and an interior of the cuff or balloon. A feedback lumen () is in fluid communication with the interior of the cuff or balloon and the valve body feedback inlet. When feedback fluid builds up pressure in excess of the restoring force of the relief spring, the relief/check valve opens, unsealing an expulsion pathway and relieving excess fluid from the cuff or balloon. 1. A catheter system comprising:a catheter tube;an inflatable cuff provided on the catheter tube;an inflation lumen in fluid communication with the inflatable cuff;a feedback lumen in fluid communication with the inflatable cuff; anda relief/check valve in fluid communication with the feedback lumen.2. The catheter system of claim 1 , wherein the relief/check valve is in selective fluid communication with an overflow expulsion lumen having an expulsion port.3. The catheter system of claim 2 , wherein the expulsion port of the overflow expulsion lumen is located at a patient-proximal end of the cuff.4. The catheter system of claim 1 , wherein the relief/check valve is disposed in a valve body.5. The catheter system of claim 4 , wherein the valve body further comprisesa luer-activated spool;a primary valve body outlet in fluid communication with the inflation lumen;an outlet pathway in fluid communication with the primary valve body outlet;a valve body feedback inlet in fluid communication with the feedback lumen;a feedback inlet pathway in fluid communication with the valve body feedback inlet;an expulsion pathway in fluid ...

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Номер записи: 21
06-06-2013 дата публикации

Substaintially rigid and stable endoluminal surgical suite for treating a gastrointestinal lesion

Номер: US20130144118A1
Автор: Boaz Manash, Dan Rottenberg, Dima Pinhasov, Gregory Piskun
Принадлежит: Macroplata Inc

Exemplary embodiments of devices and method for affecting at least one anatomical tissue can be provided. A configuration can be provided that includes a structure which is expandable (i) having and/or (ii) forming at least one opening or a working space through which the anatomical tissue(s) is placed in the structure. For example, the structure, prior to being expanding, can have at least one partially rigid portion. In addition, or as an alternative, upon a partial or complete expansion thereof, the structure can be controllable to have a plurality of shapes. Further, the structure can be controllable to provide the working space with multiple shapes and/or multiple sizes.

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Номер записи: 22
06-06-2013 дата публикации

BALLOON CATHETER SYSTEM

Номер: US20130144263A1
Автор: Kotlizky Guy, Teichman Eyal
Принадлежит:

A balloon catheter system is provided. The catheter includes a first balloon disposed around a second balloon which is movable within the first balloon. 1. An angioplasty system comprising a catheter being mountable on a guide-wire , said catheter including a first balloon disposed around a second balloon , said second balloon being movable within said first balloon.2. The system of claim 1 , wherein said second balloon is movable along a longitudinal axis of said first balloon.3. The system of claim 1 , wherein said first balloon is a non- or semi-complaint balloon.4. The system of claim 1 , wherein said second balloon is a non-compliant balloon.5. The system of claim 1 , wherein said first balloon is inflatable to a pressure of up to about 12 atm.6. The system of claim 1 , wherein said second balloon is inflatable to a pressure of up to about 30 atm.7. The system of claim 1 , wherein a length of said second balloon is less than half than that of said first balloon.8. The system of claim 1 , wherein a conduit for inflating said first balloon is co-axial with a conduit for said guidewire.9. The system of claim 1 , wherein a conduit for inflating said second balloon is positioned side-by-side to a conduit of said guide-wire.10. The system of claim 1 , wherein said second balloon is movable within said first balloon by pulling or pushing said conduit with respect to said catheter.11. The system of claim 1 , wherein said catheter includes 2 tubes claim 1 , a first tube attached to said first balloon and a second tube attached to said second balloon.12. The system of claim 11 , wherein said first tube includes a first lumen for inflating said first balloon and said second tube includes a second lumen for inflating said second balloon.13. The system of claim 1 , wherein an external surface of said first balloon is coated with a drug.14. The system of claim 1 , wherein an external surface of said first balloon includes cavities.15. The system of claim 14 , wherein said ...

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Номер записи: 23
13-06-2013 дата публикации

Microvascular obstruction detection and therapy

Номер: US20130150737A1
Автор: Robert A. Van Tassel, Robert S. Schwartz
Принадлежит: Osprey Medical Inc

A method of detecting and treating a microvascular obstruction is provided. In one embodiment, a catheter is provided for both detecting the microvascular obstruction and treating or removing the obstruction.

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Номер записи: 24
13-06-2013 дата публикации

Valvuloplasty device

Номер: US20130150881A1
Автор: Huisun Wang, James M. Anderson, Jan Weber
Принадлежит: Boston Scientific Scimed Inc

A medical device may include an elongate shaft having a plurality of elongated balloons disposed at a distal end including a first balloon, a second balloon, and a third balloon, a manifold disposed at a proximal end of the elongate shaft in fluid communication with the plurality of balloons, and a distal tip disposed distal of the plurality of balloons, the distal end of each balloon being joined together by the distal tip. A medical device may include an elongate shaft having a plurality of elongated balloons disposed at a distal end including a first opposing pair and a second opposing pair, a manifold disposed at a proximal end of the elongate shaft in fluid communication with the plurality of balloons, and a distal tip disposed distal of the plurality of balloons, the distal end of each balloon being joined together by the distal tip.

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Номер записи: 25
27-06-2013 дата публикации

System And Method For Treating Heart Tissue

Номер: US20130165736A1
Автор: Alem Jusic, Gregor Neumayr, Werner Mohl
Принадлежит: MIRACOR MEDICAL SYSTEMS GMBH

Some embodiments of a system or method for treating heart tissue can include a control system and catheter device operated in a manner to intermittently occlude a heart vessel for controlled periods of time that provide redistribution of blood flow. In particular embodiments, the system and methods may be configured to monitor at least one input signal detected at a coronary sinus and thereby execute a process for determining a satisfactory time period for the occlusion of the coronary sinus. In further embodiments, after the occlusion of the coronary sinus is released, the control system can be configured to select the duration of the release phase before the starting the next occlusion cycle.

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Номер записи: 26
27-06-2013 дата публикации

NESTED BALLOON CATHETER FOR LOCALIZED DRUG DELIVERY

Номер: US20130165769A1
Автор: Gerrans Lawrence J., Gunday Erhan H.
Принадлежит:

A balloon catheter for delivering a therapeutic and/or diagnostic agent to tissue is described including an outer balloon having a wall with an opening therethrough and an inner surface, an inner balloon disposed in the outer balloon, enclosing an inflation chamber and having an outer surface defining a space between the outer surface of the inner balloon and the inner surface of the outer balloon, a catheter having a first lumen in fluid communication with the space between the inner balloon and the outer balloon for supplying the agent thereto, and a second lumen through which fluid is supplied to the inflation chamber for inflating the inner balloon to urge the agent out of the opening in the outer balloon, wherein the outer balloon and/or the inner balloon comprise at least one protrusion for directing the agent formed by an inner balloon wall and/or the outer balloon wall. 1. A balloon catheter for delivering a therapeutic and/or diagnostic agent to tissue , comprising:an outer balloon having a wall with at least one opening therethrough and an inner surface;an inner balloon at least partially disposed in said outer balloon, said inner balloon at least partially enclosing an inflation chamber and having an outer surface defining a space between the outer surface of said inner balloon and the inner surface of said outer balloon; a first lumen in fluid communication with the space between the outer surface of said inner balloon and the inner surface of said outer balloon for supplying a therapeutic and/or diagnostic agent thereto; and', 'a second lumen through which fluid is supplied to the inflation chamber of said inner balloon for inflating said inner balloon to urge the therapeutic and/or diagnostic agent out of the at least one opening in the wall of said outer balloon and into tissue;, 'a catheter having'}wherein at least one of said outer balloon and said inner balloon comprise at least one protrusion for directing the therapeutic and/or diagnostic agent; ...

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Номер записи: 27
27-06-2013 дата публикации

Devices and systems to size a luminal organ

Номер: US20130165818A1
Автор: Ghassan S. Kassab
Принадлежит: Individual

Devices and systems to size a luminal organ. At least some embodiments include a catheter comprising an outer elongate tube, an inner elongate tube disposed within the outer elongate tube, a proximal balloon attached to the outer elongate tube, a distal balloon having a first end attached to the outer elongate tube and a second end attached to the inner elongate tube, electrodes positioned on the outer elongate tube, and a pressure transducer positioned on the outer elongate tube.

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Номер записи: 28
27-06-2013 дата публикации

METHOD AND APPARATUS FOR CONTROLLED OCCLUSION

Номер: US20130165903A1
Автор: Webler William E., Yambao August R.
Принадлежит: Abbot Cardiovascular Systems Inc.

A controlled volume inflation-deflation device to inflate a balloon to occlude a blood vessel by dialing a knob that locks at rotational positions to locate a plunger at equally spaced locations within a syringe of the inflation-deflation device. The inflation-deflation device includes a releasable latch to lock the proximal and distal housings together to hold the plunger forward for occlusion, and to separate and hold the proximal and distal housings to retract the plunger for perfusion. When the inflation-deflation device is returned to the latched position, the balloon is re-inflated to its previous occlusive diameter. Also, an extension tube made of a lower modulus outer material co-extruded over and miscible with a higher modulus inner material may be used to produce a suitably low compliance extension tube for the inflation-deflation device. The balloon may have tapered ends and a cylindrical center portion so that it increases by more equal increments in outer diameter in response to incremental equal increases in inflation volume. 1. An apparatus comprising:a cannula having a dimension suitable for percutaneous advancement through a blood vessel, the cannula comprising a proximal and a distal end;a balloon axially coupled to an exterior surface of the cannula at or adjacent the distal end of the cannula, the balloon comprising a property such that when inflated the balloon will expand in size to a plurality of relatively equally increasing outer diameters when inflated with a plurality of equally increasing inflation volumes over a range of outer diameters.2. The apparatus of claim 1 , wherein the relatively equally increasing outer diameters define an approximately cylindrical shape extending along a longitudinal axis of the cannula between two tapered ends of the balloon when inflated with a first inflation volume and define an elliptical or curved shape between the two tapered ends with respect to the axis when inflated with a second inflation volume ...

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Номер записи: 29
04-07-2013 дата публикации

Endoluminal delivery of anesthesia

Номер: US20130172852A1
Автор: David W. Chang
Принадлежит: Silk Road Medical Inc

Described herein are methods and devices for selectively applying fluids (particularly anesthetics) to a target tissue from within a blood vessel while minimizing the amount of fluid applied to non-target tissue. The injection catheters described herein may include an elongate body, a directional injector, and one or more holdfasts for securing the catheter before extending the injector. The methods of selectively applying anesthetic to a target structure generally include the steps of inserting an injection catheter into a body vessel, positioning the injection catheter within the body vessel near the target structure, anchoring the injection catheter before extending a directional injector from the injection catheter, and applying anesthetic from the injection catheter to the target structure.

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Номер записи: 30
04-07-2013 дата публикации

DRUG DELIVERY MEDICAL DEVICE

Номер: US20130172853A1
Автор: Kiorpes Timothy Charles, McCLAIN James B., Neet John, TAYLOR Charles Douglas, Zani Brett G.
Принадлежит: MICELL TECHNOLOGIES, INC.

Provided is a coated implantable medical device, comprising: a substrate; and a coating disposed on the substrate, wherein the coating comprises at least one polymer and at least one pharmaceutical agent in a therapeutically desirable morphology and/or at least one active biological agent and optionally, one or more pharmaceutical carrying agents; wherein substantially all of pharmaceutical agent and/or active biological agent remains within the coating and on the substrate until the implantable device is deployed at an intervention site inside the body of a subject and wherein upon deployment of the medical device in the body of the subject a portion of the pharmaceutical agent and/or active biological agent is delivered at the intervention site along with at least a portion of the polymer and/or a at least a portion of the pharmaceutical carrying agents. 1. A medical device comprising:a balloon; anda coating on at least a portion of the balloon,wherein the coating comprises an active agent and a binding agent, andwherein the device releases at least 3% of the active agent to artery five minutes after expansion of the balloon in the artery in vivo.2. (canceled)3. The medical device of claim 1 , wherein the binding agents comprises at least one of: Polyarginine claim 1 , Polyarginine 9-L-pArg claim 1 , DEAE-Dextran (Diethylaminoethyl cellulose-Dextran) claim 1 , DMAB (Didodecyldimethylammonium bromide) claim 1 , PEI (Polyethyleneimine) claim 1 , TAB (Tetradodecylammonium bromide) claim 1 , and DMTAB (Dimethylditetradecylammonium bromide).4. The medical device of claim 1 , wherein the active agent is sirolimus and wherein the sirolimus has an average size of at least one of: 1.5 μm claim 1 , 2.5 μm claim 1 , 645 nm claim 1 , and 100-200 nm.5. (canceled)6. (canceled)7. (canceled)8. The medical device of claim 1 , wherein the coating comprised and a 10:1 ratio of the active agent to the binding agent claim 1 , wherein the active agent comprises sirolimus wherein the ...

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Номер записи: 31
18-07-2013 дата публикации

Balloon Catheter

Номер: US20130184643A1
Автор: Warnack Boris
Принадлежит: ABBOTT LABORATORIES

A balloon catheter comprises a shaft having a proximal end and a distal end. An inflatable member is disposed adjacent the distal end of the shaft. The inflatable member has an inner inflatable member and an outer inflatable member disposed around the inner inflatable member. The inflatable members have different compliant properties. 1. A balloon catheter comprising:a shaft having a proximal end and a distal end; andan inflatable member disposed adjacent the distal end of the shaft, the inflatable member comprising an inner inflatable member and an outer inflatable member disposed around the inner inflatable member, each of the inflatable members having different compliant properties.2. The balloon catheter of claim 1 , wherein one of the inflatable members has non-compliant properties.3. The balloon catheter of claim 2 , wherein the other inflatable member has semi-compliant properties.4. The balloon catheter of claim 2 , wherein the other inflatable member compliant properties.5. The balloon catheter of claim 1 , wherein the inflatable member is a co-extruded structure.6. The balloon catheter of claim 1 , wherein the inner inflatable member is constructed of a material selected from the group consisting of polyamide and polyvinyl alcohol.7. The balloon catheter of claim 6 , wherein the outer inflatable member is constructed of a material selected from the group consisting of nylon and PEBAX.8. The balloon catheter of claim 1 , wherein the inner inflatable member is constructed of polyvinyl alcohol.9. The balloon catheter of claim 8 , wherein the inner inflatable member is configured to break down when inflated with an inflation liquid.10. The balloon catheter of wherein the inner inflatable member is configured to break down when inflated with saline solution.11. A balloon catheter comprising:a shaft comprising; andan inflatable member attached to the shaft, the inflatable member comprising an inner inflatable member and an outer inflatable member disposed around ...

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Номер записи: 32
08-08-2013 дата публикации

Kerstpiek tip for medical devices

Номер: US20130204184A1
Автор: James M. Anderson, Jan Weber, Robert Chang
Принадлежит: Boston Scientific Scimed Inc

An apparatus may include a medical device including an elongate shaft disposed about a guidewire, and a distal tip including a plurality of rounded protrusions, wherein adjacent protrusions are fixed directly to each other by a discrete, relatively flexible connector. The plurality of protrusions may each decrease in size from a proximalmost protrusion distally to distalmost protrusion.

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Номер записи: 33
29-08-2013 дата публикации

Balloon Catheter Systems for Delivery of Dry Drug Delivery Vesicles to a Vessel in the Body

Номер: US20130226083A1
Автор: Darren R. Sherman, Robert Burgermeister, William R. Baumbach
Принадлежит: Caliber Therapeutics Inc

Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.

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Номер записи: 34
05-09-2013 дата публикации

Floating, multi-lumen-catheter retractor system for a minimally-invasive, operative gastrointestinal treatment

Номер: US20130231534A1
Автор: Brian Tang, Gregory Piskun, John To, Mariel Fabro, Sergey Kantsevoy
Принадлежит: Macroplata Inc

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.

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Номер записи: 35
12-09-2013 дата публикации

Stretch Valve Balloon Catheter and Methods for Producing and Using Same

Номер: US20130237965A1
Автор: Kalser Gary A., Leone James, Mayback Gregory L., Palmer Matthew A., Pinchuk Leonard
Принадлежит:

A safety catheter includes a flexible, multi-lumen shaft having an outer diameter, a distal tip, a proximal catheter end with a drain end and a proximal inflation end. The multi-lumen shaft defines a drain lumen, a distal hollow balloon portion, at least one inflation lumen, and a drainage port. A hollow stretch valve is coaxially disposed in the drainage lumen, has a fixed portion within the drainage lumen just proximal of an increased stretching portion, and prevents fluid from passing through the drainage port in a steady state. The stretch valve has a sliding portion slidably disposed within the drainage lumen such that, in a stretched state when the proximal catheter end is stretched, the sliding portion slides within the drainage lumen to permit fluid to pass through the balloon drainage port and/or inner wall of the catheter. 1. A safety catheter , comprising: a drain lumen extending through the shaft and operable to drain fluid adjacent the distal tip therethrough and out the proximal drain end;', 'a distal hollow balloon portion defining a balloon interior and having at least one inflation port fluidically connected to the balloon interior, the balloon portion operable to be inflated outwardly through the at least one inflation port to a diameter greater than the outer diameter of the shaft;', 'at least one inflation lumen parallel to the drain lumen and fluidically connected to the at least one inflation port, the at least one inflation lumen operable to inflate the balloon interior with an inflation fluid; and', 'a drainage port fluidically connecting at least one of the balloon interior and the at least one inflation lumen to the drain lumen;, 'a flexible, multi-lumen shaft having an outer diameter, a distal tip, a proximal shaft portion, and a proximal catheter end with a proximal drain end and a proximal inflation end, the multi-lumen shaft defining coaxially disposed in the drain lumen and operable to permit fluid to pass therethrough;', 'positioned ...

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Номер записи: 36
03-10-2013 дата публикации

DEVICE FOR A BIOLOGICAL TREATMENT

Номер: US20130261544A1
Автор: Hardin Terry D.
Принадлежит:

A treatment device is disclosed for treating an area within a biological pathway or space. The treatment device includes a catheter that has a first pair of dilation balloons and a second pair of dilation balloons configured to create a sealed treatment area within a vessel. Treatment fluids may be provided to the treatment area via a fluid lumen and fluid may be removed from the treatment area via the same fluid lumen or separate aspiration lumen. 1. A treatment device , comprising:at least one catheter;at least a first pair of balloons connected to the catheter closer to a distal end of the catheter than a proximal end of the catheter, the first pair of balloons including a first opening therebetween;at least a second pair of balloons spaced apart from the first pair of balloons and connected to the catheter closer to the proximal end of the catheter than the first pair of balloons, the second pair of balloons including a second opening therebetween;at least one first lumen at least partially extending through the catheter, the first lumen being operatively connected to the first and second pair of balloons, wherein the at least one first lumen is configured to effect dilation and deflation the first and second pair of balloons; andat least one second lumen at least partially extending through the catheter, the second lumen being in communication with the first and second openings of the first pair of balloons and the second pair of balloons, wherein the second lumen is configured to deliver aspiration between the first pair and the second pair of balloons so as to create a sealed treatment region between a vessel wall and the first and second pair of balloons.2. The treatment device of claim 1 , wherein the at least one first lumen further comprises a first dilation lumen and a second dilation lumen claim 1 , wherein the first dilation lumen is in communication with the first pair of balloons and wherein the second dilation lumen is in communication with the ...

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Номер записи: 37
17-10-2013 дата публикации

Multi-lumen-catheter retractor system for a minimally-invasive, operative gastrointestinal treatment

Номер: US20130274553A1
Автор: Brian Tang, Gregory Piskun, John To, Mariel Fabro, Sergey Kantsevoy
Принадлежит: Macroplata Inc

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.

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Номер записи: 38
14-11-2013 дата публикации

BALLOON CATHETER

Номер: US20130304040A1
Автор: Gardner Bruce A., Gardner Jeffery A., Swanson David Allan
Принадлежит:

A balloon catheter having an elongated catheter shaft defining a fluid drainage lumen and a balloon inflation lumen. The balloon catheter includes a fluid drainage port disposed about the distal end of the catheter shaft in fluid communication with the fluid drainage lumen, and a balloon inflation port disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation lumen. A balloon portion is disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation port. A release device is disposed in fluid communication with the balloon portion and the fluid drainage lumen, and includes an activating member. A tether is attached to the activating member of the release device. Tension applied to the tether activates the release device, enabling fluid flow from the balloon portion into the fluid drainage lumen and out of the body. 116-. (canceled)17. A method of balloon catheterization comprising activating a release device using a tether to deflate a balloon catheter.18. The method of claim 17 , wherein the balloon catheter is positioned inside a body and wherein activating a release device using a tether to deflate a balloon catheter comprises applying a tension force to the tether from outside the body.19. The method of claim 17 , wherein activating a release device using a tether to deflate a balloon catheter comprises opening a port between a balloon inflation lumen and a fluid drainage lumen using the release device.20. The method of claim 19 , wherein activating a release device using a tether to deflate a balloon catheter comprises channeling balloon inflation fluid from the balloon inflation lumen to the fluid drainage lumen through the port.21. The method of claim 17 , wherein activating a release device using a tether to deflate a balloon catheter comprises inserting a balloon catheter including a fluid drainage lumen claim 17 , a balloon inflation lumen claim 17 , and a balloon into a body ...

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Номер записи: 39
28-11-2013 дата публикации

Control Catheters and Methods for Pulmonary Suffusion and Related Therapies

Номер: US20130317535A1
Автор: Demmy Todd L.
Принадлежит:

The present invention discloses control catheters and methods for pulmonary suffusion and related therapies. The control catheter may comprise a control end, working end having a first balloon, a minor lumen, and a first and second major lumen. One method of the present invention involves introducing the working end of the catheter into a circulator system of the mammal, positioning the catheter into a desired first lobe pulmonary artery, inflating the minor balloon using the corresponding lumen, positioning the major balloon in the main pulmonary artery, and inflating the major balloon using the corresponding lumen. The method may comprise the additional step of infusing a chemical agent through the distal tip after the inflation of the minor balloon and the major balloon. 1. A catheter comprising:a control end;a first lumen, a second lumen, and a third lumen; a major balloon in fluid communication with the first lumen and configured to be selectively inflated; and', 'a minor balloon distally located along the catheter with respect to the major balloon, the minor balloon in fluid communication with the second lumen and configured to be selectively inflated; and', 'an accessory orifice located between the major balloon and the minor balloon, the accessory orifice in communication with the third lumen; and', 'a distal tip distally located along the catheter with respect to the minor balloon, the distal tip having an orifice in communication with a primary lumen., 'a working end comprising2. The catheter of claim 1 , wherein the control end is configured for manipulation by an operator.3. The catheter of claim 1 , wherein the first lumen and second lumen have a size of 1-2 F.4. The catheter of claim 1 , wherein the major balloon is configured to occlude blood flow in a main pulmonary artery of a patient when inflated and the minor balloon is configured to occlude blood flow in a branch pulmonary artery of a patient when inflated.5. The catheter of claim 1 , wherein ...

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Номер записи: 40
12-12-2013 дата публикации

MECHANICALLY ASSISTED INFLATION DEVICE HANDLE AND METHOD OF USE

Номер: US20130331780A1
Автор: Lampropoulos Fred, McArthur Gregory R., Padilla William, Stevens Brian
Принадлежит: Merit Medical Systems, Inc.

An inflation device including a handle mechanism configured to selectively engage and disengage threads within the device. In some instances the threads are configured to couple a plunger to a syringe body. The handle mechanism may be configured to (1) provide a mechanical advantage and (2) change the location and direction of the input force, thereby making the device easier to use. 1. An inflation device configured for use in connection with a medical device , the inflation device comprising:a body component;a pressurization component configured to increase or decrease pressure within the body component through displacing the pressurization component with respect to the body component;a coupling mechanism comprising a first set of threads coupled to the body component and a second set of threads coupled to the pressurization component, wherein the coupling mechanism is configured to selectively constrain the displacement of the pressurization component with respect to the body component; andan actuator configured to selectively engage and disengage the coupling mechanism, the actuator configured to provide a mechanical advantage;wherein the actuator comprises a first member and a second member and the actuator is configured to disengage the coupling mechanism when the first and second members are displaced toward each other; andwherein a lever disposed between the first and second members provides mechanical advantage in controlling the actuator.2. The inflation device of claim 1 , wherein the actuator is configured to disengage the coupling mechanism in response to a proximally-oriented force on the actuator.3. The inflation device of claim 1 , wherein the first set of threads are fixedly coupled to the syringe body.4. The inflation device of claim 1 , wherein the first set of threads are oriented proximally at a first angle and the second set of threads are oriented distally at the first angle.5. The inflation device of claim 4 , wherein the second set of ...

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Номер записи: 41
12-12-2013 дата публикации

Recovery Catheter Assembly and Method

Номер: US20130331814A1
Автор: Fulton, III Richard Eustis, Lotti Richard
Принадлежит:

A recovery device assembly comprises an actuator element and a mechanically radially expandable and contractible recovery device operably connected to the actuator element is provided. The recovery device has proximal and distal toroidal balloon blocking elements and a central portion between the blocking elements. The recovery device is at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element. When in the second, radially expanded configuration, the proximal and distal blocking elements have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion. Also provided are methods of isolating an organ and recovering blood from an organ that use the recovery device assembly provided. 1. A recovery device assembly comprising:a proximal and a distal toroidal balloon blocking elements comprising an inner radius and partially defining a collection chamber;a central tubular section between and encircled by the two blocking elements and attached to their inner balloon inner radius walls;a recovery lumen housed within the inner radius walls of the toroidal balloons and the central tubular section with fenestrations through the wall of the recovery lumen and the central tubular section communicating with the collection chamber;an expansile structure adjacent to the recovery lumen, the expansile structure also housed within the inner radius walls of the toroidal balloons and the central tubular section,actuator elements attached to the expansile structure, wherein the recovery device is at least partially placeable in a first radially collapsed configuration and in a second radially expanded configuration by manipulation of the actuator elements and inflation of the balloons so that when in the second, radially expanded configuration, the proximal and distal blocking elements have ...

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Номер записи: 42
19-12-2013 дата публикации

Inflation sensor mount and method of assembly

Номер: US20130338581A1
Автор: Blaine Johnson, Brian Stevens, Randy Boyd, Steve Taylor
Принадлежит: Merit Medical Systems Inc

An inflation device comprising a housing configured to receive a sensor assembly is disclosed. In some embodiments, the sensor assembly may be coupled to the housing through use of a snap fit-type connection. Further, the working fluid of the inflation device may be in direct communication with the pressure sensor, without the use of secondary fluids such as gels.

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Номер записи: 43
19-12-2013 дата публикации

CATHETER SYSTEMS AND METHODS USEFUL FOR CELL THERAPY

Номер: US20130338637A1
Автор: Fearnot Neal E., Fischer, JR. Frank J., JR. Jimmy L., Randolph James R., Shirley Gary Bradford, Taylor
Принадлежит:

Described in one aspect is a multi-pressure monitoring system for cell or other therapy includes a first catheter having a first lumen for accepting a treatment device, a second lumen for inflating a balloon, a pressure sensor for monitoring fluid pressure within the first lumen, and a flow restrictor such as a hemostasis valve for limiting the exchange of fluids into and out of the first lumen while treatment devices are present or exchanged in the first lumen. Also disclosed is a method of using the first catheter with a first pressure monitor coupled to the first pressure sensor along with a second catheter attached to a second pressure sensor coupled to a second pressure monitor. The second catheter is positioned within the first lumen of the first catheter during treatment operations and the first and second pressure monitors are used to verify proper pressures throughout the procedure. Described also are novel methods, systems, and catheters for delivering flowable therapeutic substances, such as viable cellular preparations, to patients. 1. A catheter apparatus , comprising:a catheter shaft defining a first lumen and a second lumen;a proximal port in fluid communication with the first lumen, the proximal port having associated therewith a resilient valve member operable to seal around an elongate device extended through the proximal port;a sensor operable to measure fluid pressure in the first lumen;a distal port in fluid communication with the first lumen, the distal port positionable within a vascular vessel of a patient and arranged to receive blood under pressure when positioned in the vascular vessel;an inflatable balloon mounted on the catheter shaft, the inflatable balloon having an inner void in fluid communication with the second lumen; anda proximal inflation port in fluid communication with the second lumen.2. The catheter apparatus of claim 1 , wherein the sensor is positioned to sense fluid pressure from a location within the first lumen.3. The ...

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Номер записи: 44
26-12-2013 дата публикации

NARROW PROFILE CATHETER WITH DEFORMATION-RESISTIVE GUIDEWIRE LUMEN

Номер: US20130345628A1
Автор: Berger Erwin, Popowski Youri
Принадлежит: ACROSTAK CORP BVI,TORTOLA

The present disclosure relates to a catheter having a longitudinal guidewire lumen defined by a first tube configured for an over-the-wire or rapid-exchange mode of operation, the wall of the first tube provided with an expansion member that is a sub-region of the wall of the first tube provided with an expandable material. An inflation lumen extending from the proximal end towards the distal end of the shaft is in fluidic contact with the expansion member, the member being configured to expand or contract responsive to pressure in the inflation lumen. The wall of the first tube may be formed from a helically coiled wire or helically braided wire having a helix angle of 60 degrees or more which tubing is resistive to radial pressure applied in the inflation lumen. 1. A catheter comprising:a proximal end, a distal end, and an elongated shaft containing:a longitudinal first tube provided with a guidewire lumen terminating in a distal terminal port in the shaft, said guidewire lumen being configured for an over-the-wire or rapid-exchange mode of operation, a wall of the first tube being provided with an expansion member of expandable material that is a sub-region of the first tube wallan inflation lumen extending from the proximal end towards the distal end of the shaft for fluidic contact with the expansion member, said expansion member being configured to expand or contract responsive to pressure in the inflation lumen; anda transverse lumen, TL, defined by an transverse tube, TT, proximal to the expansion member, fluidicly connecting the guidewire lumen to a TL-side port on a side wall of the shaft.2. Catheter according to claim 1 , wherein the shaft comprises:at least one inflatable balloon at the distal end, the inflation lumen being positioned for fluidic connection with a balloon lumen.3. Catheter according to claim 2 , wherein:the TL-side port is located proximal to a most proximal inflatable balloon, orwherein a number of the inflatable balloons is two or more ...

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Номер записи: 45
02-01-2014 дата публикации

Apparatus and Methods for Inflating and Deflating Balloon Catheters

Номер: US20140005630A1
Автор: Celso J. Bagaoisan, Glen Gong, Scott Robert Sershen, Suresh Pai
Принадлежит: SPOTLIGHT TECHNOLOGY PARTNERS LLC

Among the various embodiments, objects and features of the present invention may generally be noted an inflation/deflation syringe that enables one-handed operation to inflate a medical device to a given pressure or volume and one-handed operation to deflate said medical device.

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Номер записи: 46
09-01-2014 дата публикации

Device for treatment of a blood vessel

Номер: US20140012188A1
Автор: Paolo Cremascoli, Patrizia Pini, Pedro Orrego Silva
Принадлежит: Paolo Cremascoli, Pedro Orrego Silva

A device for treatment of a blood vessel includes: a catheter (C) configured to be inserted in a blood vessel (V) to be treated; a selection member (S) associated with the catheter (C) to prevent a blood flow at least in a determined section (T) of the blood vessel (V); a self-perfusion lumen associated with the catheter (C) to provide a fluidic connection between a first portion (P 1 ) of the blood vessel (V) upstream the determined section (T) and a second portion (P 2 ) of the blood vessel (V) downstream the determined section (T); a treatment system (F) associated with the catheter (C) to make a fluid drug flow at least to the determined section (T).

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Номер записи: 47
09-01-2014 дата публикации

Occluding Catheter and Method for Prevention of Stroke

Номер: US20140012306A1
Автор: Michael Zhadkevich
Принадлежит: Individual

An occluding catheter for preventing stroke by occluding blood flow through right and left carotid arteries is provided. The occluding catheter includes a shaft that has a proximal end and a distal end, and a proximal occluding balloon carried by the shaft. The proximal occluding balloon is inflated to occlude blood flow through one of the right carotid artery and the left carotid artery. A distal occluding balloon is carried by the shaft and is inflated to occlude blood flow through one of the right carotid artery and the left carotid artery that is not occluded by the proximal occluding balloon. The shaft has a segment that is located between the proximal occluding balloon and the distal occluding balloon. Also provided is an alternative arrangement with a single occluding balloon, and an associated method of diverting emboli from cerebral circulation.

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Номер записи: 48
23-01-2014 дата публикации

Abrading Balloon Catheter for Extravasated Drug Delivery

Номер: US20140024903A1
Автор: Gerrans Lawrence J., Gunday Erhan H.
Принадлежит:

A method of extravasated drug delivery is disclosed, including inserting a catheter with a first balloon, a second balloon, and a third balloon positioned between the first and second balloons and having a wall with an abrasive outer surface, into a bodily cavity, inflating the first and second balloons to create a chamber therebetween, stimulating a flow of blood cells by inflating the third balloon until the abrasive outer surface abrades tissue, and delivering the agent to the chamber. A balloon catheter system is also provided including a balloon having a wall with an abrasive outer surface for abrading tissue, a catheter having a first lumen for supplying fluid to the balloon to inflate the balloon such that the abrasive surface stimulates a flow of blood cells, and a second lumen for supplying an agent to tissue. 1. A method of extravasated delivery of a therapeutic and/or diagnostic agent to tissue , comprising the steps of: a first balloon;', 'a second balloon; and', 'a third balloon positioned between the first and second balloons and having a wall with an abrasive outer surface;, 'inserting a catheter into a bodily cavity, said catheter comprising'}inflating the first and second balloons to create a chamber between the first balloon and the second balloon, wherein the boundaries of the chamber are defined by an inner surface of the cavity wall and the catheter;stimulating a flow of blood cells by repeatedly inflating and deflating the third balloon by supplying fluid to the third balloon such that the abrasive outer surface abrades tissue in the bodily cavity as the third balloon is repeatedly inflated and deflated; anddelivering the therapeutic and/or diagnostic agent to the chamber and external of the third balloon after stimulating the flow of blood cells.2. The method of claim 1 , wherein the abrasive outer surface comprises a mesh affixed to the wall of the third balloon.3. The method of claim 1 , wherein the first balloon and the second balloon each ...

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Номер записи: 49
30-01-2014 дата публикации

FLUID SUPPLY BODY AND BALLOON CATHETER

Номер: US20140031746A1
Автор: YANUMA Yutaka
Принадлежит:

A fluid supply body for supplying a fluid to a balloon formed of a material having elasticity and inflating the balloon, the fluid supply body includes a cylinder, a plunger, an adjusting portion that is attached to the plunger and adjusts the movement, amount of the plunger so that the balloon is inflated with to a predetermined inflation diameter, and a fixing portion that is provided at the cylinder and fixes the plunger at a position within the cylinder corresponding to the movement amount adjusted by the adjusting portion, wherein the adjusting portion has a plurality of engaging portions that, specify movement amounts corresponding to a plurality of different inflation diameters of the balloon, and the fixing portion has an engaged portion, and a converting portion. 1. A fluid supply body for supplying a fluid to a balloon formed of a material having elasticity and inflating the balloon , the fluid supply body comprising:a cylinder that is a tubular shape having a first opening and a second opening at both ends thereof and that contains the fluid;a plunger that is inserted into the cylinder from the second opening so as to be able to advance and retract in a direction of an axis of the cylinder and that pushes out the fluid which is in the cylinder from the first opening to the outside of the cylinder;an adjusting portion that is attached to the plunger and adjusts the movement amount of the plunger so that the balloon is inflated to a predetermined inflation diameter; anda fixing portion that is provided at the cylinder and fixes the plunger at a position within the cylinder corresponding to the movement amount adjusted by the adjusting portion, whereinthe inflation diameter is changed as the balloon is inflated,the adjusting portion has a plurality of engaging portions that specify movement amounts corresponding to a plurality of different inflation diameters of the balloon, and an engaged portion that is engaged to the engaging portions and fixes the ...

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Номер записи: 50
30-01-2014 дата публикации

Catheters and Methods for the Treatment of Bodily Passages

Номер: US20140031792A1
Автор: Darin Schaeffer, Kost Karen
Принадлежит:

Medical devices are described herein. More particularly, the disclosure relates to catheters useful in the treatment of bodily passages, such as an airway, sinus cavity, or sinus passage. The disclosure also relates to methods of treating bodily passages. An exemplary catheter comprises an elongate member having a first balloon and a second balloon. 1. A medical device comprising:an elongate member having an elongate member proximal end and an elongate member distal end, the elongate member defining an infusion lumen and an inflation lumen;a first balloon attached to the elongate member and adapted to move between a deflated configuration and an inflated configuration, the first balloon comprising a first balloon wall defining an infusion chamber and at least one protuberance extending radially outward from the first balloon wall, the infusion chamber in communication with the infusion lumen, the at least one protuberance defining at least one protuberance pore in communication with the infusion chamber such that fluid introduced into the infusion chamber can pass through the at least one protuberance pore; anda second balloon attached to the elongate member and disposed radially inward of the first balloon, the second balloon adapted to move between a deflated configuration and an inflated configuration and comprising a second balloon wall defining an inflation chamber in communication with the inflation lumen.2. The medical device of claim 1 , wherein the at least one protuberance pore comprises a plurality of protuberance pores.3. The medical device of claim 2 , wherein a first protuberance pore of the plurality of protuberance pores comprises a first diameter;wherein a second protuberance pore of the plurality of protuberance pores comprises a second diameter; andwherein the second diameter is different than the first diameter.4. The medical device of claim 2 , wherein each protuberance pore in a first set of protuberance pores of the plurality of protuberance ...

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Номер записи: 51
06-02-2014 дата публикации

Balloon Catheter Systems for Delivery of Dry Drug Delivery Vesicles to a Vessel in the Body

Номер: US20140039389A9
Автор: Darren R. Sherman, Robert Burgermeister, William R. Baumbach
Принадлежит: Caliber Therapeutics Inc

Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.

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Номер записи: 52
13-02-2014 дата публикации

WEEPING BALLOON CATHETER

Номер: US20140046252A1
Автор: Boatman Scott E.
Принадлежит:

Balloon catheters, and methods of treatment therewith, are provided including an inflatable first balloon at least partially enclosed by an expandable second balloon that has holes. The annular space between the first balloon and the second balloon is configured to promote delivery of the fluid evenly through holes in the second balloon to avoid problems of underloading and/or overloading. Preferably, the annular space is in communication with the holes, and the annular space is configured to receive and then to release and distribute the fluid via the holes in a substantially uniform manner such that even amounts of fluid are released in the distal and proximal holes. The first balloon may have various configurations including being tapered relative to the second balloon. The second balloon may also be tapered accordingly. The device may also include raised portions disposed in the annular space and configured to define channels having various configurations. 1. A balloon catheter comprising:a catheter shaft extending along a longitudinal axis;a first balloon mounted on the catheter shaft, the first balloon having a middle working region;a second balloon mounted around at least a portion of the first balloon, the second balloon having a middle working length, and a plurality of holes formed in the middle working length to define a perforated portion; anda plurality of raised portions coupled between at least one of an outer surface of the first balloon and an inner surface of the second balloon, each of the first and second balloons movable to an expanded configuration to define a plurality of channels disposed between adjacent raised portions and the first and second balloons, the channels being in communication with the plurality of holes of the second balloon;wherein the channels comprise an annular working region disposed between the perforated portion of the middle working length of the second balloon and a corresponding portion of the middle working region of ...

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Номер записи: 53
20-02-2014 дата публикации

Occlusion perfusion catheter

Номер: US20140051997A1
Автор: C. Rex TEESLINK, Drik V. Hoyns
Принадлежит: Advanced Catheter Therapies Inc

Catheters for occluding, visualizing, irrigating, evacuating, and delivering agents to a treatment area are disclosed. The catheters comprise a catheter body comprising five lumens, first and second occlusion balloons coupled to the catheter body, an optional space-occupying balloon coupled to the catheter body and disposed between the first and second occlusion balloons, and an optional visualization means that enables visualization between the first and second occlusion balloons. Methods for using these catheters are also disclosed. A method comprises inflating the first and second occlusion balloons, inflating the space-occupying balloon, allowing fluid to exit via an evacuation lumen, optionally irrigating or aspirating to facilitate fluid exit via said lumen, and delivering an agent to a treatment area via the agent lumen.

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Номер записи: 54
20-02-2014 дата публикации

Apparatus for preventing over inflation of the retention balloon in medical catheters and airway devices

Номер: US20140052063A1
Автор: Christopher Gregory, John B. Cline, Yun Jin
Принадлежит: Convatec Technologies Inc

The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port. A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.

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Номер записи: 55
20-02-2014 дата публикации

DOUBLE BALLOON CATHETER AND METHODS FOR HOMOGENEOUS DRUG DELIVERY USING THE SAME

Номер: US20140052105A1
Автор: Hattangadi Neil, Lerner Daniel, Olivera Ryan
Принадлежит: COVIDIEN LP

The present disclosure is directed to a catheter for site-specific delivery of a therapeutic agent to a blood vessel of a patient. The catheter further includes an elongated shaft having at least one inner lumen, a distal end and a proximal end and proximal and distal vessel-conforming balloons where each is separately positionable and inflatable, and when inflated, substantially restricts blood flow in the vessel and creates a treatment window of a defined but variable length for delivery of the therapeutic agent. The catheter optionally includes at least one marker band adjacent to the proximal balloon and at least one marker band adjacent to the distal balloon. At least one lateral aperture positioned in the window is in fluid communication with a drug delivery conduit located within either the inner shaft or the outer shaft to provide a homogeneous concentration of the therapeutic agent to the window. 1. (canceled)2. A method for site-specific delivery of an antiproliferative agent to a blood vessel of a patient comprising:inflating first and second balloons of a catheter to define a treatment window between the first and second balloons, the treatment window including a fluid;delivering the antiproliferative agent to the treatment window;maintaining the antiproliferative agent within the treatment window for a predetermined time period sufficient to enable a predetermined concentration of the antiproliferative agent to be absorbed by the blood vessel; anddeflating the first and second balloons to wash out an unabsorbed concentration of the antiproliferative agent remaining in the blood vessel after the predetermined time period.3. The method of claim 2 , further including selectively opening a closed drain passage that extends through the catheter to allow the fluid within the treatment window to be displaced from within the treatment window and into the catheter through a leak aperture defined within a shaft of the catheter.4. The method of claim 2 , wherein ...

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Номер записи: 56
06-03-2014 дата публикации

Inflatable medical devices

Номер: US20140066896A1
Автор: Alexander Q. Tilson, Charles S. Love, Garrett J. GOMES, Jonathan KURNIAWAN, Mark C. SCHEEFF, Mitchelll C. Barham, Paul J. Dreyer
Принадлежит: Loma Vista Medical Inc

An inflatable structure for use in biological lumens and methods of making and using the same are disclosed. The structure can have an inflatable balloon encircled by a shell. The shell can have proximal and distal tapered necks, longitudinally-oriented flutes, and apertures at the proximal and distal ends of the shell. The apertures can be recessed in the flutes in the necks. The shell can also have fiber reinforced walls.

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Номер записи: 57
20-03-2014 дата публикации

SURGICAL TECHNIQUE(S) AND/OR DEVICE(S)

Номер: US20140081176A1
Автор: Hassan Chandra
Принадлежит:

One or more techniques and/or devices are disclosed for promoting standardization of the dissection of a portion of a patient's stomach, such as during laparoscopic sleeve gastrectomy (LSG), for example. In this way, LSG can be improved at least by allowing a surgeon and/or patient to choose a post surgery stomach size in a quantifiable manner. For example, a patient could discuss various stomach sizing options with their doctor and select the option believed to be most beneficial to the patient. Moreover, one or more techniques and/or devices are disclosed for decreasing tissue trauma while performing surgical stapling, such as during LSG. In this way, surgical procedures that implement stapling can be improved, as reduced tissue trauma generally accelerates healing time, among other things. For example, staples and/or staple cartridges may be designed to reduce pinching or pressure points along a staple line while achieving desired closure and/or hemostasis. 1. A device configured to promote standardizing tissue resection during sleeve gastrectomy comprising:a tube comprising one or more markings along at least some of a length of the tube;a balloon operatively coupled to one end of the tube, the balloon configured to block a surrounding orifice upon inflation; anda balloon inflation mechanism disposed along at least some of the length of the tube and configured to at least one of inflate or deflate the balloon.2. The device of claim 1 , comprising one or more secondary inflation channels disposed along at least some of the length of the tube and configured to at least one of provide or remove at least one of a gas claim 1 , a liquid claim 1 , or a solid to an area exterior to the tube.3. The device of claim 1 , the balloon inflation mechanism comprising a balloon inflation channel.4. The device of claim 3 , the balloon inflation channel configured to inflate the balloon based at least in part on providing at least one of a gas claim 3 , a liquid claim 3 , or a ...

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Номер записи: 58
20-03-2014 дата публикации

SIMPLIFIED MEDICAL INFLATION DEVICE WITH PASSIVE LATCH

Номер: US20140081205A1
Автор: Kanner Rowland W., Roberts Brian A.
Принадлежит:

An inflator which preferably has a gauge thereon and means for communicating with a medical connector or device. The inflator has a syringe body, a handle on the syringe body, a plunger which extends out from the handle and extends into the syringe body, and a plunger locking mechanism which is associated with the handle. The plunger locking mechanism includes an actuation lever which is configured to be depressed, thereby causing the plunger locking mechanism to actuate. The plunger locking mechanism includes a ratchet pawl which is configured to selectively engage corresponding ratchet structure, thereby locking the plunger in place, during which time the plunger is prevented from being retracted, but can still be advanced (i.e., pushed into the syringe body during pressurization). The plunger locking mechanism is configured such that when the actuation lever is released, the ratchet pawl disengages from the corresponding ratchet structure, thus freeing the plunger. 1. An inflator comprising: a syringe body; a handle on the syringe body; a plunger which extends out from the handle and extends into the syringe body; and a plunger locking mechanism which is associated with the handle , said plunger locking mechanism comprising an actuation lever which is configured to be depressed , thereby causing the plunger locking mechanism to actuate , said plunger locking mechanism comprising locking structure which is configured to selectively engage corresponding structure on either the plunger or a ratchet wheel which is engaged with the plunger , wherein the inflator is configured such that , when the actuation lever is depressed , the plunger is non-retractable relative to the syringe body , but is advanceable relative to the syringe body.2. An inflator as recited in claim 1 , wherein the locking structure of the plunger locking mechanism comprises a ratchet pawl which engages a geared ratchet of the ratchet wheel.3. An inflator as recited in claim 2 , wherein the ratchet ...

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Номер записи: 59
27-03-2014 дата публикации

Balloon-equipped endoscopic devices and methods thereof

Номер: US20140088362A1
Автор: Gad Terliuc, Gilad Luria
Принадлежит: Smart Medical Systems LTD

An endoscopy system including a balloon-equipped endoscope including a balloon which is configured for slidable frictional engagement with an interior wall of a body passageway and axial stretching of the interior wall when inflated to a slidable frictional engagement pressure and displaced axially along the body passageway and a balloon inflation subsystem operative to selectably inflate the balloon to the slidable frictional engagement pressure.

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Номер записи: 60
27-03-2014 дата публикации

Variable displacement inflation devices and methods of use

Номер: US20140088498A1
Автор: Brian Stevens, Steven Weir, William Padilla
Принадлежит: Merit Medical Systems Inc

An inflation device that may comprise multiple plungers is disclosed. The inflation device may have multiple configurations wherein certain plungers are locked with respect to a body of the inflation device while others are configured to be displaceable within the body. Each plunger may be configured with a different effective surface area, allowing a practitioner to vary the amount of force required to attain certain pressures.

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Номер записи: 61
27-03-2014 дата публикации

INFLATION DEVICES AND METHODS OF USE THEREOF

Номер: US20140088499A1
Автор: Lampropoulos Fred, Mottola Jim, Stevens Brian, Weir Steven
Принадлежит: Merit Medical Systems, Inc.

Inflation devices and methods to inflate medical devices are disclosed. Certain embodiments enable the selective coupling of a plunger to a syringe body through manipulation of a handle. Other embodiments facilitate the generation of relatively high fluid pressures through inflation device designs that incorporate multiple plungers. 1. An inflation device configured to displace fluid , the inflation device comprising:a syringe body;a plunger configured to be disposed within the syringe body, the plunger selectively coupleable to the syringe body, wherein the plunger comprises a plunger shaft; anda handle rotatably coupled to the plunger shaft,wherein rotation of the handle relative to the plunger shaft selectively couples and decouples the plunger to and from the syringe body.2. The inflation device of claim 1 , wherein the handle is rotatably coupled to the plunger shaft about a pin.3. The inflation device of claim 1 , wherein the plunger claim 1 , when coupled to the syringe body claim 1 , is coupled to the syringe body by a plurality of threads.4. The inflation device of claim 1 , wherein the plunger claim 1 , when coupled to the syringe body claim 1 , is coupled to the syringe body by the engagement of a plurality of threads with a thread rail claim 1 , wherein engagement of the plurality of threads with the thread rail restricts the movement of the plunger within the syringe body.5. The inflation device of claim 4 , wherein the handle comprises a surface configured to interact with the thread rail claim 4 , wherein rotation of the handle relative to the plunger shaft displaces the thread rail in a longitudinal direction due to interaction of the thread rail with the surface.6. The inflation device of claim 5 , wherein the thread rail comprises a slot configured to accept a spring claim 5 , wherein the spring biases the thread rail to interact with the surface.7. The inflation device of claim 1 , further comprising a cable that is coupled to a thread rail claim ...

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Номер записи: 62
03-04-2014 дата публикации

DUAL PURPOSE BALLOON CATHETERS

Номер: US20140094777A1
Автор: Krolik Jeffrey A., WATANABE Gwendolyn
Принадлежит:

Enhanced dual purpose systems enable dilating of at least a lesion within a blood vessel and providing an anti-proliferative medicament in a non-attached form directly into the lumen of the vessel. Likewise provided is the ability to stop blood flow to prevent wash-out of the medicament during dwell time within the body lumen, and the ability to remove the medicament after the dwell time of the device to prevent unwanted exposure of the same within the body. 1. A method for treating a patient , comprising the steps of:providing a catheter having an elongate, flexible body, a first lumen, a second lumen and at least an inflatable balloon;advancing the at least a balloon to a desired site in a vessel;inflating the balloon by introducing inflation media through the first lumen; and,infusing fluid into the vessel outside of the catheter and adjacent the balloon by infusing the fluid through the first lumen.2. The method of claim 1 , further comprising two balloons.3. The method of claim 2 , wherein said fluid comprises at least an anti-proliferative drug/medicament/therapy.4. The method of claim 3 , further comprising a proximate valve associated with each said balloon.5. The method of claim 4 , where balloon positioning seals off a portion of the vessel from normal flow.6. The method of claim 5 , further comprising at least a coil.7. The method of claim 6 , further comprising at least a coil disposed with each said balloon.8. The method of claim 6 , wherein each said coil disposed within a balloon comprises a lumen blocking structure.9. The method of claim 7 , wherein placement and positioning of an anti-proliferative drug/medicament is controlled.10. The method of claim 8 , said controlling being effected at a distal extremity of the vessel.11. The method of claim 9 , said controlling being at both distal and proximal extremities of a vessel.12. The method of claim 1 , further comprising multiple balloons.13. A method as in claim 1 , wherein the infusing fluid step ...

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Номер записи: 63
03-04-2014 дата публикации

MECHANICAL TENSIONING DEVICE

Номер: US20140094839A1
Автор: JR. James W., Moriarty, Nimkar Shekhar
Принадлежит: NinePoint Medical, Inc.

A mechanical tensioning device includes a housing including a passageway and an opening that is in communication with the passageway. A plunger is movably disposed in the passageway. A first end of the plunger includes an inner member. A connector is coupled to the housing and includes a channel that is in communication with the passageway and a port in communication with the channel. A catheter is coupled to the connector and includes a lumen that is in communication with the channel and an expandable member. The inner member extends through the lumen and into the expandable member such that a distal end of the inner member is fixed to a distal end of the expandable member. The inner member is moveable between a first configuration in which the inner member is curved within the expandable member and a second configuration in which the inner member is less curved within the expandable member. 1. A mechanical tensioning device comprising:a housing comprising an inner surface defining a passageway, a first end of the housing comprising an opening that is in communication with the passageway, the housing comprising a plunger movably disposed in the passageway, a first end of the plunger comprising an inner member extending therefrom;a connector comprising a first end coupled to the first end of the housing, the connector comprising an inner surface defining a channel that is in communication with the passageway, the connector comprising a port in communication with the channel; anda catheter comprising a first end coupled to a second end of the connector, the catheter comprising an inner surface defining a lumen that is in communication with the channel, the catheter comprising a second end defining an expandable member,wherein the inner member extends through the opening, the lumen and the expandable member such that a distal end of the inner member is fixed to a distal end the expandable member, the inner member being moveable between a first configuration in which ...

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Номер записи: 64
10-04-2014 дата публикации

SYSTEM AND METHOD FOR URINARY CATHETERIZATION

Номер: US20140100553A1
Автор: Azar Ramyar
Принадлежит:

The embodiments herein provide an atraumatic urinary catheter. The atraumatic urinary catheter has a first tubule, a second tubule and a third tubule. The first tubule is provided with a first channel and a second channel. The first channel is wide and extended from a proximal end to a distal end of the first tubule and the first channel is open in both ends. The second tubule comprises a third channel, which is connected to a bladder cavity. The third tubule placed on the first tubule and the second tubule as a cover, to form a catheter's balloon. In order to avoid balloon explosion, the sterile water in the balloon is drained by the self-retaining mechanism of the catheter to prevent an irritation and tissue traumatization. 1. An atraumatic urinary catheter , the catheter comprising:a first tubule comprising a first channel and a second channel, and wherein the first channel is wide and extended from a proximal end of the first tubule to a distal end of the first tubule, and wherein the first channel is open in both ends;a second tubule comprising a third channel, and wherein the third channel of the second tubule is connected to a bladder cavity; anda third tubule placed on the first tubule and the second tubule as a cover, and wherein the third tubule produces a catheter's balloon;wherein a self-retaining mechanism is formed in the third tubule at a junction of the first tubule and the second tubule in the catheter's balloons cavity.2. The catheter according to claim 1 , wherein the second channel of the first tubule is thin claim 1 , and wherein the second channel is connected to the catheter's balloon claim 1 , and wherein the catheter's balloon is filled with sterile water through the second channel.3. The catheter according to claim 1 , wherein the self-retaining mechanism is produced by placing a thin distal end of the first channel of the first tubule inside a wide proximal end of the third channel of the second tubule to cover both the first tubule and ...

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Номер записи: 65
06-01-2022 дата публикации

BALLOON ENCAPSULATION AND ISOVOLUMETRIC SUCTION THROMBECTOMY CATHETER AND METHODS THEREOF

Номер: US20220000498A1
Автор: De Silva Gayan, Genin Guy, Lee Sanghun A., Leuthardt Eric, Osbun Joshua, Williams Dillon, Wirtz Alexander, Zayed Mohamed
Принадлежит:

The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus. 1. A catheter system for removal of a thrombus from a vessel , comprising: at least one infusion fenestration along the infusion segment; and', 'a distal encapsulation balloon at the distal end; and, 'an inner catheter having a proximal end, an infusion segment, and a distal end, the inner catheter comprising 'a proximal encapsulation balloon at the distal end,', 'an outer sheath having a proximal end and a distal end, the outer sheath comprisingwherein the outer sheath surrounds at least a portion of the inner catheter and the distal encapsulation balloon and the proximal encapsulation balloon are separated by a distance along the infusion segment.2. The catheter system of claim 1 , wherein the distal encapsulation balloon and the proximal encapsulation balloon are compliant balloons operable to accommodate varying vessel sizes and minimize damage or injury to the vessel.3. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon is adjustable.4. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon form a thrombolytic ...

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Номер записи: 66
07-01-2021 дата публикации

SYSTEM AND METHOD FOR CLEANSING SEGMENTS OF A LUMINAL NETWORK

Номер: US20210000330A1
Автор: Krimsky William S.
Принадлежит:

A method and system for instilling a medium into portions of a luminal network is provided. The method includes generating a model of a luminal network based on images of the luminal network, determining a location of a treatment target in the luminal network, navigating a bronchoscope through the bronchial tree to a target, guiding a catheter through the bronchoscope, dispensing medium to the target from a distal end of the catheter, and removing a quantity of medium from the luminal network. 1. A method of instilling a medium into portions of a luminal network comprising:generating a model of a luminal network based on images of the luminal network;determining a location of a treatment target in the luminal network;navigating a bronchoscope through the bronchial tree to a target;guiding a catheter through the bronchoscope;dispensing a medium to the target from a distal end of the catheter; andremoving a volume of the medium from the luminal network.2. The method of claim 1 , further comprising claim 1 ,generating an electromagnetic field about the luminal network; andinserting a location sensor into the electromagnetic field,tracking a location of the location sensor coupled to the bronchoscope while the location sensor is navigated within the luminal network; anddisplaying guidance for navigating the location sensor within the luminal networkwherein the location sensor includes magnetic field sensors configured to sense the magnetic field and to generate position signals in response to the sensed magnetic field.3. The method of claim 1 , further comprising:measuring the volume of medium removed from the luminal network; anddetermining whether the volume of the medium removed from the luminal network equals or exceeds a threshold volume based on a volume of the dispensed medium.4. The method of claim 1 , further comprising:inflating a first balloon coupled to the distal end of the catheter until the first balloon contacts walls of the luminal network creating a ...

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Номер записи: 67
07-01-2021 дата публикации

CATHETER FOR MONITORING UTERINE CONTRACTION PRESSURE

Номер: US20210000422A1
Автор: Levine Marc-Alan, McKinney Timothy
Принадлежит: Sentinel Medical Technologies, LLC

A multi-lumen catheter for monitoring uterine contraction pressure having an elongated body configured and dimensioned for insertion into a bladder of a patient, the catheter having a first lumen, a second lumen, and a first balloon at a distal portion, the first lumen communicating with the first balloon. The second lumen communicates with the bladder to remove fluid from the bladder. The first balloon is filled with a gas to form along with the first lumen a gas filled chamber to monitor pressure within the bladder to thereby monitor uterine contraction pressure of the patient. 120- (canceled)21. A system for monitoring uterine contraction pressure via measuring bladder pressure , the system comprising a catheter having an elongated body configured and dimensioned for insertion into a bladder of a patient , the catheter having a first lumen , a second lumen , and a first balloon at a distal portion , the first lumen communicating with the first balloon , and the second lumen having an opening communicating with the bladder to remove fluid from the bladder through the second lumen , the first balloon filled with a gas to form along with the first lumen a gas filled chamber to monitor pressure within the bladder to thereby monitor uterine contraction pressure of the patient , and a sensor to measure pressure in response to deformation of the balloon , the pressure sensor measuring pressure of the bladder to provide readings of bladder pressure.22. The system of claim 21 , wherein the pressure sensor continuously communicates with an external monitor to visually display pressure readings claim 21 , the pressure sensor providing continuous pressure measurements throughout its duration of insertion without requiring infusion of water into the bladder.23. The system of claim 21 , wherein the gas filled chamber is a closed system.24. The system of claim 21 , further comprising a temperature sensor to measure maternal core body temperature.25. The system of claim 21 , ...

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Номер записи: 68
06-01-2022 дата публикации

METHODS OF TREATMENT ASSOCIATED WITH ENDOVASULAR GRAFTS

Номер: US20220000896A1
Автор: Ning Kelvin
Принадлежит:

Methods and compositions for treatments associated with endovascular grafts, dissections, peripheral aneurysms, and neuro aneurysms are provided that deliver 1,2,3,4,6-pentagalloyl glucose (PGG) or analogues or derivatives thereof and/or LeGoo®. Also provided is a device to deliver 1,2,3,4,6-pentagalloyl glucose (PGG) or analogues or derivatives thereof or LeGoo® to the tissue to be treated. 1. A method for treating a leaking endovascular graft of a patient , comprising:positioning a first balloon in an artery in a region of the leaking endovascular graft;expanding the first balloon such that it presses against surfaces of the artery or the leaking endovascular graft in contact with a surface of the first balloon; anddelivering a therapeutic agent to tissue in the region of the leaking endovascular graft through pores in the first balloon.2. The method of claim 1 , wherein expanding the first balloon comprises introducing an inflation fluid into an interior volume of the first balloon.3. The method of claim 1 , wherein delivering the therapeutic agent comprises introducing a solution comprising the therapeutic agent into an interior volume of the first balloon claim 1 , the introduction of the solution being configured to expand and/or maintain an expanded state of the first balloon.4. The method of claim 1 , wherein expanding the first balloon comprises maintaining a pressure within an interior volume of the second balloon greater than a diastolic blood pressure of the patient and less than a systolic blood pressure of the patient.5. The method of claim 1 , wherein expanding the first balloon and delivering the therapeutic agent through the pores comprises introducing a solution into an interior volume of the first balloon claim 1 , and wherein the solution is introduced at a first volumetric flow rate to expand the first balloon and the solution is introduced at a second volumetric flow rate to deliver the therapeutic agent through the pores claim 1 , the first ...

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Номер записи: 69
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: 70
03-01-2019 дата публикации

SYSTEMS, METHODS AND DEVICES FOR PROGRESSIVELY SOFTENING MULTI-COMPOSITIONAL INTRAVASCULAR TISSUE

Номер: US20190000491A1
Автор: Schoenle Victor L.
Принадлежит:

Various embodiments of the systems, methods and devices are provided comprising angioplasty to break up calcification or other tissue in occlusive areas within a blood vessel. The various embodiments disclosed comprise pressure pulse periods designed to break up calcified occlusive material through a cyclically stretching of the vessel walls without damaging the vessel wall tissue. 1. A method for treating an at least partially calcified occlusion in a blood vessel , comprising:providing an inflatable balloon;providing a fluid reservoir in operative communication with the inflatable balloon; andproviding a pressure controller in operative communication with the fluid reservoir and adapted to deliver fluid from the fluid reservoir to the balloon in a series of pressure pulse periods; at least one pressure waveform type;', 'at least one pressure magnitude;', 'a pressure pulse period;', 'a pressure velocity at the initiation of the pressure pulse period; and', 'a decompression period between successive pressure pulse periods., 'executing a series balloon inflations and deflations comprising the series of pressure pulse periods, each pressure pulse period in the series comprising the following predetermined parameters that will not non-elastically deform the blood vesselwherein the at least one pressure magnitude increases within each successive pressure pulse period over time and further increasing across the series of pressure pulse periods.2. The method of claim 1 , wherein the pressure pulse period for each successive pressure pulse period within the series of pressure pulse periods comprises a constant time period.3. The method of claim 1 , wherein the pressure pulse period for each successive pressure pulse period within the series of pressure pulse periods comprise variable time periods.4. The method of claim 1 , wherein the pressure pulse period for each successive pressure pulse period within the series of pressure pulse periods increases in time.5. The method ...

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Номер записи: 71
04-01-2018 дата публикации

INFLATABLE INTRAUTERINE BALLOON

Номер: US20180000488A1
Автор: HU Lina, LI Huafeng, ZHANG Ji
Принадлежит:

Disclosed herein are inflatable balloon apparatuses for use in stopping massive blood flow from a uterine wall due trauma or disease. Also disclosed is a method for using the apparatuses. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. An inflatable balloon apparatus for treating obstetrical hemorrhaging , the apparatus comprising:an inflatable balloon comprising an inner layer and an outer layer, the inner layer being inflatable to an inflated configuration to take on a shape of an obstetrical site to be controlled, the outer layer being positionable against a wall of the obstetrical site to control flow of blood from the wall, wherein in the inflated configuration, the balloon comprises a chamber between the inner layer and the outer layer for receiving flow of blood from the obstetrical site;an insufflation tube coupled to the inner layer of the balloon for communication of a distending medium to inflate the balloon; andan internal drain tube comprising an inserted end and a port at the inserted end, the drain tube being coupled to the chamber of the balloon, the drain tube being configured for draining blood or other fluids from the obstetrical site via the chamber of the balloon.13. The apparatus of claim 12 , wherein the insufflation tube is coaxially disposed within the drain tube at a proximal end of the balloon.14. The apparatus of claim 12 , wherein the insufflation tube comprises a semi-rigid catheter extending into the balloon inner layer claim 12 , the insufflation tube facilitating insertion and removal of the balloon from the obstetrical site.15. The apparatus of claim 14 , wherein the catheter comprises an inner end portion and a series of apertures at the inner end portion for infusing a physiologic fluid into the balloon after insertion of the balloon into the obstetrical site.16. The apparatus of claim 12 , further comprising a pressure control ...

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Номер записи: 72
06-01-2022 дата публикации

PERFUSION BALLOON WITH AN EXPANDABLE INTERNAL LUMEN

Номер: US20220001150A1
Автор: Akpinar Mehmet Hakan
Принадлежит:

The present invention relates to a perfusion balloon catheter that has an expandable (enlargeable) inner lumen with a novel design feature that allows a continuous flow through this enlarged lumen sufficient perfusion to the distal lumen of the blood vessel or air passage concurrent to and independently of balloon inflation or deflation resulting in the prolonged dilatation and avoiding the high risks of blood or air flow stricture during balloon inflation. 1. A perfusion balloon catheter device which creates pulsative perfusion of air , blood or any liquid during balloon inflation in trachea , blood vessel , artery or vein with a constant flow , characterized by comprising;{'b': 114', '101, 'An internal lumen () made of Nylon-12, polyether block amide (PEBA), or polyurethane (PU) attached to the external surface of the self/mechanically expandable stent frame (),'}{'b': '101', 'a self/mechanically expandable stent frame () utilized as a skeleton to increase the cross-section of the blood perfusion lumen to create sufficient blood perfusion to the distal vessel or tissues which is made of a shape-memory metallic wire,'}{'b': '102', 'an inner lumen () for the balloon catheter system used as a guidewire lumen made of Nylon-12, polyether block amide (PEBA), or polyurethane (PU),'}{'b': '103', 'a radiopaque marker band () made of platinum-iridium to visualize the balloon location under fluoroscopy,'}{'b': '105', 'a kink-resistant inflation lumen () for the balloon catheter made of Nylon-12, polyether block amide (PEBA), or polyurethane (PU),'}{'b': 106', '101', '102, 'a connecting strut () of the self/mechanically expandable stent frame () to the external surface of the inner lumen () made of shape-memory metallic wire,'}{'b': '107', 'a balloon catheter main shaft () to push and pull the total system made of Nylon-12, polyether block amide (PEBA), or polyurethane (PU),'}{'b': '108', 'one or more fenestration holes () to create perfusion of the connection part of the ...

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Номер записи: 73
06-01-2022 дата публикации

BALLOON FOLDING METHOD

Номер: US20220001153A1
Автор: Goto Hiroshi, Kurosaki Yasuo
Принадлежит: TERUMO KABUSHIKI KAISHA

A folding method of an inflatable balloon disposed on an outer peripheral surface of an inner tube of a balloon catheter is disclosed. The method includes: disposing the balloon to an inner side of a plurality of first blade portions arranged so as to surround a reference position while maintaining a state where pressure is applied to an inside of the balloon; correcting a bend of the balloon by moving the plurality of first blade portions toward the reference position in the state where the pressure is applied to the inside of the balloon; pleating a plurality of wing portions protruding radially outward on the balloon by further moving the plurality of first blade portions toward the reference position to partially press the balloon while gradually discharging the fluid inside the balloon; and folding the balloon along the inner tube. 1. A folding method of an inflatable balloon disposed on an outer peripheral surface of a shaft of a balloon catheter , the method comprising:disposing the balloon to an inner side of a plurality of first blade portions arranged so as to surround a reference position while maintaining a state where pressure is being applied to an inside of the balloon;correcting a bend of the balloon by moving the plurality of first blade portions toward the reference position in the state where the pressure is being applied to the inside of the balloon;pleating a plurality of wing portions protruding radially outward on the balloon by further moving the plurality of first blade portions toward the reference position while gradually discharging a fluid from the inside of the balloon to partially press the balloon; andfolding the plurality of wing portions along the shaft.2. The folding method of the balloon according to claim 1 , further comprising:heating the plurality of wing portions on the balloon while pleating the plurality of wing portions protruding radially outward on the balloon.3. The folding method of the balloon according to claim 1 , ...

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Номер записи: 74
07-01-2021 дата публикации

PERCUTANEOUS TRANSCATHETER REPAIR OF HEART VALVES VIA TRANS-APICAL ACCESS

Номер: US20210000601A1
Автор: Buchbinder Maurice, Shaolian Samuel M.
Принадлежит: Valcare, Inc.

Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves via a trans-apical approach to accessing the heart. A guiding sheath may be introduced into a ventricle of the heart through an access site at an apex of the heart. A distal end of the guiding sheath can be positioned retrograde through the target valve. An annuloplasty ring arranged in a compressed delivery geometry is advanced through the guiding sheath and into a distal portion of the guiding sheath positioned within the atrium of the heart. The distal end of the guiding sheath is retracted, thereby exposing the annuloplasty ring. The annuloplasty ring may be expanded from the delivery geometry to an operable geometry. Anchors on the annuloplasty ring may be deployed to press into and engage tissue of the annulus of the target valve. 1. A system for percutaneous transcatheter delivery of an annuloplasty ring to repair a target valve of a heart via a trans-apical approach , the delivery apparatus comprising:a guide sheath having a lumen therethrough and configured to be positioned into the heart via an access site through a wall of the heart at the apex of the heart, the guide sheath having a length configured to be positioned through a ventricle of the heart, retrograde through the target valve, and into an atrium of the heart;a delivery assembly configured to be positioned within the guide sheath and advanced to a distal portion of the guide sheath; andthe annuloplasty ring configured to be arranged in a compressed delivery geometry within a plane that is transverse to a longitudinal axis of the lumen of the guiding sheath, wherein the annuloplasty ring comprises a plurality of anchors configured to be pressed into and engage tissue of an annulus of the target valve.2. The system of claim 1 , wherein the delivery assembly comprises a balloon assembly comprising:an upper balloon portion defining an ...

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Номер записи: 75
03-01-2019 дата публикации

Intragastric volume-occupying device and method for fabricating same

Номер: US20190000655A1
Автор: Amy D.L. VANDENBERG, Andrew P. Rasdal, Antonio C. Llevares, Dubravka Markovic, Kaushik A. Patel, Mark C. Brister, Neil R. DRAKE, Nelson Quintana
Принадлежит: Obalon Therapeutics Inc

Intragastric volume-occupying devices and methods for treating obesity are provided. The devices, which are inflated by carbon dioxide, include an aluminum or silicon oxide barrier layer providing carbon dioxide retention and an alkylene vinyl alcohol polymer layer providing structural integrity in vivo.

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Номер записи: 76
07-01-2021 дата публикации

MOVING A GUIDEWIRE IN A BRAIN LUMEN

Номер: US20210001093A1
Автор: Algawi Yehuda, Govari Assaf
Принадлежит:

A medical probe includes a guidewire, a guidewire advancement mechanism (GAM), and a middle inflatable balloon. The guidewire is configured for insertion into a lumen of an organ of a patient. The GAM is disposed at a distal end of the guidewire, with the GAM including: (i) a proximal inflatable balloon, (ii) a distal inflatable balloon, and (iii) a middle inflatable balloon that is coupled between the proximal and distal balloons. The proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence. 1. A medical probe , comprising:a guidewire for insertion into a lumen of an organ of a patient; and a proximal inflatable balloon;', 'a distal inflatable balloon; and', 'a middle inflatable balloon that is coupled between the proximal and distal balloons, wherein the proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence., 'a guidewire advancement mechanism (GAM) disposed at a distal end of the guidewire, the GAM comprising2. The medical probe according to claim 1 , and comprising a variable-length element claim 1 , which is fitted inside the middle balloon and connects the distal balloon and the proximal balloon.3. The medical probe according to claim 2 , wherein the variable-length element comprises a spring.4. A system claim 2 , comprising: a guidewire for insertion into a lumen of an organ of a patient;', a proximal inflatable balloon;', 'a distal inflatable balloon; and', 'a middle inflatable balloon that is coupled between the proximal and distal balloons, wherein the proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence; and, 'a guidewire advancement mechanism (GAM) disposed at a distal end of the guidewire, the GAM comprising, 'an inflation/deflation (I/D) unit comprising a controller and one or more pumps configured to ...

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Номер записи: 77
07-01-2016 дата публикации

DELIVERY CATHETER APPARATUS AND METHODS

Номер: US20160001063A1
Автор: Drake Ronald A., LANGE Kendra, SHEPLER Mark W., Stener Lester O., WIEN Kelly M.
Принадлежит:

A catheter has a shaft that defines a delivery lumen, for example, to deliver an elongate medical device therethrough; a proximal section of the catheter includes a seal zone portion, a handle portion and a proximal port portion. A relatively thin wall section of the proximal port portion extends between the seal zone portion and a proximal edge that defines part of a perimeter of a proximal opening of the delivery lumen. The handle portion projects laterally from the seal zone portion, generally opposite the relatively thin wall section. An inflation subassembly of the catheter includes a compliant sleeve member and an inflation lumen extending from the sleeve member, proximally along the shaft, and into a connector port formed in the handle portion. The inflation lumen may be formed by fusing a section of a tube to the shaft and molding the handle portion around another section of the tube. 1. A method for delivering an implantable medical electrical lead into the coronary vasculature of a patient via a catheter , the catheter including a delivery lumen , an inflation lumen , and a compliant sleeve member extending around an exterior surface of a shaft of the catheter such that an inflatable section of the sleeve is in fluid communication with the inflation lumen , the catheter having been advanced into a body of the patient such that a distal tip thereof canulates a coronary vein , the compliant sleeve member being located in proximity to the distal tip , and the distal tip surrounding a distal opening of the delivery lumen; and the method comprising:coupling an inflation fluid source to a connector port of the catheter, the connector port being formed in a handle portion of the catheter and in fluid communication with the inflation lumen;pressurizing the coupled inflation fluid source to inflate and maintain inflation of the inflatable section of the sleeve;injecting a radiopaque dye from a syringe, the syringe having a tip inserted into a proximal port portion ...

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Номер записи: 78
07-01-2021 дата публикации

PARTIALLY WOVEN EXPANDABLE MEMBERS

Номер: US20210001116A1
Автор: Eskuri Alan David, Kerkow Todd Alan, Waldhauser Steven L.
Принадлежит:

A system for application of neurostimulation includes an outer sheath, an elongate inner member in the outer sheath and movable relative to the outer sheath. The inner lumen has a distal end. An expandable member is coupled to the distal end of the inner member and is in the outer sheath. The expandable member is self-expanding upon from a compressed state in the outer sheath to an expanded state out of the outer sheath. The expandable member includes a distal portion including a plurality of wires woven together and a proximal portion including the plurality of wires extending parallel to a longitudinal axis. The system includes a plurality of electrode assemblies outward of the expandable member and circumferentially spaced around the expandable member. Each electrode assembly is coupled to two of the wires extending parallel to the longitudinal axis. Each electrode assembly includes a plurality of longitudinally-spaced electrodes. 1. (canceled)2. A partially woven expandable member for supporting an electrode array , the expandable member being self-expanding between a compressed state and an expanded state , the expandable member comprising:a proximal end;a distal end;a longitudinal axis; the bends defining the distal end of the expandable member,', 'the wire segments woven from the distal end of the expandable member towards the proximal end of the expandable member,', 'wherein the distal segment comprises a first portion having a braid property and a second portion having a second braid property different than the first braid property, wherein the first braid property comprises braid angle and the second braid property comprises braid angle, and', 'wherein the second braid angle is greater than the first braid angle; and, 'a distal segment comprising a plurality of wires, each wire of the plurality of wires having a bend including a wire segment on each side of the bend,'} the plurality of wires extending parallel to the longitudinal axis,', 'half of the wires ...

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Номер записи: 79
04-01-2018 дата публикации

Introducer Set

Номер: US20180001003A1
Автор: Aboulhosn Walid, Moran Adrian, Siess Thorsten
Принадлежит:

An introducer set () for providing vascular access in a patient's body comprises an introducer sheath () and a dilator (). The introducer sheath () has a tubular body () made of flexible material with a distal portion (), a proximal portion () and an inner surface, the proximal portion () being configured to be inserted into a patients vessel to allow a medical device () to be inserted through the introducer sheath () into the patient's vessel. At least one of the dilator () and the introducer sheath () comprises a stiffening structure () imparting stiffness to the tubular body () of the introducer sheath (), wherein said stiffening structure () can be released, removed or otherwise deactivated. 1. An introducer set for providing vascular access in a patient's body , comprising:an introducer sheath having a tubular body made of flexible material with a distal portion, a proximal portion and an inner surface, the proximal portion being configured to be inserted into a patient's vessel to allow a medical device to be inserted through the introducer sheath into the patient's vessel; anda dilator having a body with a proximal portion, a distal portion and an outer surface, the dilator being insertable into the introducer sheath such that its proximal portion extends proximally of the introducer sheath when the dilator is inserted in the introducer sheath;wherein the tubular body of the introducer sheath has a wall thickness of 0.3 mm or less; andwherein at least one of the dilator and the introducer sheath comprises a stiffening structure imparting stiffness to the tubular body of the introducer sheath, wherein said stiffening structure can be released, removed or otherwise deactivated.2. The introducer set according to claim 1 , wherein the tubular body of the introducer sheath has a wall thickness of less than 0.2 mm.3. The introducer set according to claim 1 , wherein the stiffening structure claim 1 , when activated claim 1 , causes surface friction between at least ...

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Номер записи: 80
05-01-2017 дата публикации

VARIABLE DISPLACEMENT INFLATION DEVICES AND METHODS OF USE

Номер: US20170000988A1
Автор: Padilla William, Stevens Brian, Weir Steven
Принадлежит:

An inflation device that may comprise multiple plungers is disclosed. The inflation device may have multiple configurations wherein certain plungers are locked with respect to a body of the inflation device while others are configured to be displaceable within the body. Each plunger may be configured with a different effective surface area, allowing a practitioner to vary the amount of force required to attain certain pressures. 1. An inflation device configured to displace fluid within a medical device , the inflation device comprising:a body member defining a reservoir;a first plunger displaceable within the body member, the first plunger configured to automatically transition to a locked configuration wherein the first plunger is coupled to the body member when a fluid disposed within the reservoir is at or above a first pressure;a second plunger displaceable within the body member; anda handle operably coupled to the first and second plungers.2. The inflation device of claim 1 , wherein the second plunger is configured to further increase the pressure of the fluid after the first plunger is coupled to the body.3. The inflation device of claim 1 , further comprising a locking member operably coupled to the first plunger claim 1 , wherein displacement of the locking member with respect to the first plunger is configured transition the first plunger into the locked configuration.4. The inflation device of claim 3 , wherein the locking member comprises a locking sleeve and the locking sleeve is configured to couple the first plunger to the second plunger when the first plunger is in an unlocked configuration.5. The inflation device of claim 4 , wherein the first plunger is coupled to the body member when the first plunger is in the locked configuration.6. The inflation device of claim 3 , wherein the second plunger is displaceable with respect to the first plunger when the first plunger is in a locked position.71. The inflation device of claim of claim 3 , wherein ...

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Номер записи: 81
02-01-2020 дата публикации

BALLOON CATHETER HAVING A RETRACTABLE SHEATH

Номер: US20200001055A1
Автор: Pigott John P.
Принадлежит:

An intravascular balloon catheter device for treating various size stenosed regions within a blood vessel is provided. A clamp located within a body of a handle assembly is movable between a clamped and unclamped position by way of a button. When clamped, an outer member is secured relative to a sheath to as to expose a portion of a balloon located on a distal end of the outer member. The portion of the balloon remaining within the sheath is restricted from inflation beyond the sheath. 1. An intravascular balloon catheter device for treating various size stenosed regions within a blood vessel comprising:a handle assembly comprising a body, a button located on the body, and a clamp located within the body;an inner member;an outer member disposed about the inner member and extending through at least a portion of the handle assembly;a balloon located at a distal end of the outer member, said balloon having a proximal portion and a distal portion; anda sheath disposed about the outer member, wherein the sheath is configured to prevent the proximal portion of the balloon from inflating to a diameter larger than the sheath, and wherein the outer member is configured for sliding movement relative to the sheath;wherein the button is mechanically connected to the clamp such that actuation of the button is configured to move of the clamp from a clamped position where the clamp frictionally engages the outer member and secures the position of the outer member relative to the sheath, to an unclamped position where the outer member is moveable relative to the sheath.2. The device of wherein:the sheath extends from the handle assembly;the outer member extends completely through the handle assembly to an area beyond the body; andthe proximal portion of the balloon is connected to the outer member and the distal end of the balloon is connected to the inner member.3. The device of wherein:said clamp comprises a spring, wherein said spring is mechanically connected to the body and ...

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Номер записи: 82
13-01-2022 дата публикации

Waste Management Appliance

Номер: US20220008241A1
Автор: Steer Graham
Принадлежит: ProSys International Limited

A waste management appliance includes a tubular body having a proximal end and a distal end, a cowl fastened to the tubular body at a first circumferential location in a vicinity of the proximal end, a balloon provided within the cowl, and an inflation lumen opening to an interior of the balloon and extending toward the distal end of the tubular body. The cowl extends outside of the tubular body to a second circumferential location spaced from the first circumferential location and is fastened to the tubular body at the second circumferential location. The balloon is inflatable to a desired extent within the cowl by injecting a predetermined amount of fluid into the balloon via the inflation lumen; the cowl restrains inflation of the balloon beyond the desired extent in the event of an injection of more than the predetermined amount of fluid into the balloon. 1. A waste management appliance , comprising:a tubular body having a proximal end and a distal end;a cowl fastened to said tubular body at a first circumferential location in the vicinity of said proximal end, said cowl extending distally outside of said tubular body to a second circumferential location spaced distally from said first circumferential location, said cowl being fastened to said tubular body at said second circumferential location at a plurality of spaced positions around the circumference of said tubular body;an inflatable balloon provided within said cowl; andan inflation lumen having a proximal end opening to the interior of said balloon and extending distally towards the distal end of said tubular body;wherein the cowl can be separated from said tubular body at a plurality of circumferential regions where the cowl is not fastened to the tubular body to form a plurality of pockets between the cowl and the uninflated balloon, andthe balloon can be inflated to a desired extent within the cowl by injecting a predetermined amount of fluid into said balloon via said lumen, the cowl functioning in ...

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Номер записи: 83
13-01-2022 дата публикации

STRETCH VALVE BALLOON CATHETER AND METHODS FOR PRODUCING AND USING SAME

Номер: US20220008699A1
Автор: Kalser Gary A., Mayback Gregory L., Pinchuk Leonard
Принадлежит: MAYSER, LLC

A safety balloon catheter includes a catheter having a stretch valve, a connector, a balloon inflated with an inflation fluid, a hollow inflation lumen extending through the catheter to the balloon and conveying inflation fluid thereto and therefrom, a hollow second lumen, and a balloon drainage port fluidically connecting the balloon to the second lumen. The stretch valve has a hollow base fixed in the second lumen at a proximal catheter end and shaped to permit a fluid therethrough and a hollow plug slidably positioned in the second lumen at a given distance from the base to, in a steady state, prevent inflation fluid from passing through the drainage port and, when actuated, slide within the second lumen to permit inflation fluid to pass through the drainage port and into the second lumen. The connector connects the base and the plug and has a length greater than the given distance. 1 a drain lumen extending through the shaft and shaped to drain fluid adjacent the distal tip proximally through the drain lumen and out the drain end;', 'a distal hollow balloon portion defining a balloon interior and having at least one inflation port fluidically connected to the balloon interior, the balloon portion inflating outwardly to a diameter greater than the outer diameter of the shaft when inflated with inflation fluid;', 'at least one inflation lumen parallel to the drain lumen and fluidically connected to the balloon interior through the at least one inflation port, the at least one inflation lumen shaped to inflate the balloon interior with the inflation fluid; and', 'a balloon drainage port fluidically connecting the balloon interior to the drain lumen; and, 'a flexible, multi-lumen shaft having an outer diameter, a distal tip, and a proximal catheter end with a drain end, the multi-lumen shaft defining a body removably disposed in the balloon drainage port and shaped to prevent fluid from passing through the balloon drainage port when disposed in the balloon drainage ...

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Номер записи: 84
01-01-2015 дата публикации

Photodynamic Therapy for Tumors With Localized Delivery

Номер: US20150005693A1
Автор: Gerrans Lawrence J., Gunday Erhan H.
Принадлежит:

A system for treatment of tumors includes a vessel having a photosensitizing agent therein, a delivery device for communicating the photosensitizing agent from the vessel to tumor tissue, a light source for radiating the tumor tissue after the delivery device has delivered the photosensitizing agent to the tumor tissue, a catheter having at least one inflatable balloon positioned thereon, and a fluid source that repeatedly inflates and at least partially deflates the inflatable balloon such that a resecting outer surface of the balloon contacts the radiated tumor tissue and resects the tissue. 1. A system for treatment of tumors , comprising:a vessel having a photosensitizing agent therein;a delivery device for communicating said photosensitizing agent from the vessel to tumor tissue;a light source for radiating the tumor tissue after said delivery device has delivered the photosensitizing agent to the tumor tissue;a catheter having a proximal balloon, a distal balloon, and a middle balloon positioned between said proximal and distal balloons; anda fluid source that inflates said proximal and distal balloons by supplying fluid thereto to create a chamber between the proximal balloon and the distal balloon;wherein the photosensitizing agent is delivered into said chamber; andwherein the fluid source increases fluid pressure within the chamber by supplying fluid to said middle balloon such that the agent is extravasated into the tumor tissue.2. The system of claim 1 , wherein said middle balloon has a resecting outer surface and wherein said fluid source repeatedly inflates and at least partially deflates said middle balloon such that that the resecting outer surface contacts the radiated tumor tissue and resects the tissue.3. The system of claim 1 , wherein the photosensitizing agent is an up-converting phosphor.4. The system of claim 1 , wherein the photosensitizing agent is porfimer sodium.5. The system of claim 1 , wherein the photosensitizing agent comprises a ...

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Номер записи: 85
01-01-2015 дата публикации

WEEPING BALLOON CATHETER WITH DRUG DELIVERY BALLOON IN FLUID COMMUNICATION WITH COMBINATION LUMEN

Номер: US20150005743A1
Автор: McCullough Adam Brian
Принадлежит: Cook Medical Technologies LLC

A weeping balloon catheter includes a catheter having an elongate tubular body defining an inflation lumen and a combination lumen that terminates at an open distal end of the elongate tubular body. A dilation balloon is disposed at a distal end of the elongate tubular body and is in fluid communication with the inflation lumen. A drug delivery balloon is disposed at least partially over the dilation balloon and includes at least one drug release opening through an outer wall of the drug delivery balloon. The drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body. 1. A weeping balloon catheter , comprising:a catheter having an elongate tubular body defining an inflation lumen and a combination lumen, wherein the combination lumen terminates at an open distal end of the elongate tubular body;a dilation balloon disposed at a distal end of the elongate tubular body and in fluid communication with the inflation lumen; anda drug delivery balloon disposed at least partially over the dilation balloon and including at least one drug release opening through an outer wall of the drug delivery balloon, wherein the drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body.2. The weeping balloon catheter of claim 1 , further including a wire guide received within the combination lumen claim 1 , wherein a drug delivery path of the weeping balloon catheter is defined by a first clearance between the wire guide and a wall of the combination lumen and the drug delivery balloon.3. The weeping balloon catheter of claim 2 , wherein the sidewall opening is proximal to the dilation balloon.4. The weeping balloon catheter of claim 2 , wherein the sidewall opening is proximal to a transition of the catheter from a dual lumen catheter to a single lumen catheter.5. The weeping balloon catheter of claim 2 , wherein a distal segment of the ...

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Номер записи: 86
01-01-2015 дата публикации

DEVICES FOR THE TREATMENT OF VASCULAR ANEURYSM

Номер: US20150005744A1
Автор: Isenburg Jason C., Ogle Matthew F.
Принадлежит:

Devices for the treatment of vascular aneurysms are described. The treatment is achieved through the delivery of an effective amount of elastin stabilization agent to an isolated volume at the aneurysm. The elastin stabilization agent maybe embedded in a delivery composition. The device optionally has an aspiration means to improve the effectiveness of the treatment. 1. A method for treating an isolated portion of a blood vessel , the method comprising:delivering a therapeutic composition to the isolated volume of the blood vessel following aspiration of the fluid using a device that is positioned within the vessel with an extendable portion forming the isolated volume with the wall of the vessel wherein the therapeutic composition is delivered into the isolated volume through a fluid exchange portion in fluid communication with a lumen of the shaft that extends from the patient wherein the flow in the vessel is maintained through a by pass channel of the delivery device while treatment is performed, wherein the therapeutic composition comprises an elastin stabilizing composition.2. The method of wherein the shaft further comprises a rapid exchange guidewire lumen with a guidewire port near the distal end of the shaft.3. The method of wherein the extendable element comprises an actuation element that controls the transition of the extendable element between the lower profile configuration and the extended configuration.4. The method of wherein the fluid exchange portion is on the shaft of the device comprising one or more exchange openings in fluid communication with the isolated volume.5. The method of wherein the one or more exchange openings comprises a tubular conduit displaced from the shaft having an opening that is in fluid communication with the isolated volume.6. The method of wherein the fluid exchange portion comprises a side channel that is a portion of the second lumen having an opening on the side of the sealing element of the device.7. The method of ...

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Номер записи: 87
01-01-2015 дата публикации

ARRANGEMENT FOR IMPLEMENTING KISSING BALLOONS FOR SIMULATING A BIFURCATED VESSEL, A KIT, A METHOD OF MANUFACTURING THE ARRANGEMENT AND A CATHETER PROVIDED WITH A BUFFER VOLUME

Номер: US20150005802A1
Автор: BROM Henri Lorenzo Frederik, de Vries Alexander Cornelis
Принадлежит:

The invention relates to an arrangement () for implementing kissing balloons simulating a bifurcated vessel, comprising a first catheter () having a first inflatable balloon () at or near its distal portion, a second catheter () having a second inflatable balloon () at or near its distal portion, wherein the first catheter comprises a holding element () provided on the said first balloon (), the said holding element () being adapted for: allowing the distal portion of the second catheter () to pass there through; affixing the second catheter () in a proximal vicinity to the first catheter () so that, in use, respective facing surfaces of the inflated first balloon () and the inflated second balloon () touch each other. 1. An arrangement for implementing kissing balloons simulating a bifurcated vessel , comprising a first catheter having a first inflatable balloon at or near its distal portion , a second catheter having a second inflatable balloon at or near its distal portion , wherein the first balloon comprises a holding element , the said holding element being adapted for:(i) allowing the distal portion of the second catheter to pass there through;(ii) affixing the second catheter in a proximal vicinity to the first catheter so that, in use, respective facing surfaces of the inflated first balloon and the inflated second balloon touch each other.2. The arrangement according to claim 1 , wherein the holding element is substantially cylindrically shaped.3. The arrangement according to claim 1 , wherein the holding element comprises a distal portion and a proximal portion claim 1 , and wherein the holding element tapers from the proximal portion towards the distal portion.4. The arrangement according to claim 1 , wherein the holding element is hook-like.5. The arrangement according to claim 1 , wherein the holding element is arranged within 5 cm from the distal end of the first balloon.6. The arrangement according to claim 1 , wherein a transversal dimension of the ...

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Номер записи: 88
01-01-2015 дата публикации

UNCINATE PROCESS SUPPORT FOR ETHMOID INFUNDIBULUM ILLUMINATION

Номер: US20150005805A1
Автор: Goldfarb Eric, Harfe Daniel T., Kesten Randy J.
Принадлежит:

A dilation apparatus comprises an elongate member and a dilation assembly that is slidable along the elongate member. The dilation assembly comprises a platform and an inflatable dilator. The platform and the elongate member cooperate to absorb inflation forces from the dilator directed toward the longitudinal axis of the elongate member, such that the dilation forces are exerted against tissue asymmetrically relative to the longitudinal axis of the elongate member. The dilation apparatus may be used to dilate the ethmoid infundibulum in a human patient. Various devices may be used to maintain the dilated state of an ethmoid infundibulum, including a wedge, a mesh, and a tether. An illuminator may be configured to reach around an uncinate process, retract the uncinate process, and then illuminate the ethmoid infundibulum to provide improved visualization of the ethmoid infundibulum. 1. An apparatus comprising:(a) an elongate member, wherein the elongate member defines a longitudinal axis; and (i) an inflatable dilator, wherein the inflatable dilator is operable to expand from a non-inflated state to an inflated state, wherein the inflatable dilator is configured to slide along a path defined by the elongate member,', '(ii) a constraining member secured to the inflatable dilator, wherein the constraining member is positioned and configured to restrict expansion of the inflatable dilator in one direction transverse to the longitudinal axis while permitting expansion of the inflatable dilator in another direction transverse to the longitudinal axis, and', '(iii) a conduit in fluid communication with the dilator., '(b) a dilation assembly slidable relative to the elongate member, wherein the dilation assembly comprises2. The apparatus of claim 1 , wherein the elongate member comprises a rail.3. The apparatus of claim 1 , wherein the elongate member comprises a catheter.4. The apparatus of claim 1 , wherein the constraining member comprises a set of wires.5. The ...

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Номер записи: 89
20-01-2022 дата публикации

SYSTEM AND METHODS FOR TREATING MVO

Номер: US20220016399A1
Автор: HOEM Jon H., Rothman Martin T., Schwartz Robert S.
Принадлежит: CorFlow Therapeutics AG

MVO is treated by introducing injectate into blood vessels affected by MVO at precise flow rates, while blocking retrograde flow, such that the natural pumping of the heart aids in forcing the injectate into the affected microvessels. Monitoring pressure distal of an occlusion balloon is used to determine treatment effectiveness and heart health. 1. A system for treating myocardial microvascular obstruction (MVO) , the system comprising:a catheter comprising a distal region, a proximal region, and a balloon disposed at the distal region, the distal region of the catheter sized and shaped to be positioned in a myocardial vessel supplying blood to a patient's myocardium;at least one pressure sensor configured to generate sensor data corresponding to at least one of pressure inside the catheter or pressure outside the catheter distal to the balloon; anda pump assembly coupled to the proximal region of the catheter, the pump assembly comprising at least one reservoir containing injectate, the pump assembly configured to pump injectate from the at least one reservoir through the catheter at a flow rate and responsive to the sensor data,wherein the pump assembly further is configured to reduce the flow rate to zero to allow compression of microvasculature caused by natural myocardial contraction to draw the injectate into occluded myocardial vessels to promote mixing of the injectate with obstructing matter causing MVO.2. The system of claim 1 , wherein the balloon is either manually or automatically inflated and deflated.3. The system of claim 1 , further comprising at least one temperature sensor configured to sense temperature at the distal region.4. The system of claim 1 , further comprising a user interface electronically associated with the pressure sensor to display a graph of calculated values of vascular resistance over time based on the sensor data.5. The system of claim 4 , wherein the user interface displays tau claim 4 , wherein tau is defined as the ...

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Номер записи: 90
12-01-2017 дата публикации

METHOD AND SYSTEM FOR TREATING ANEURYSMS

Номер: US20170007263A1
Автор: Fox Jason, Schreck Stefan
Принадлежит: Endologix, Inc.

Methods for treatment of aneurysms using a sequential manifold console to deploy multiple filling structures are provided herein. In one aspect, aneurysms are treated by simultaneously filling two double-walled filling structure using a sequential manifold console to guide a user in the steps to be followed in the procedure and to reliably achieve a consistent and durable aneurysmal treatment using a curable medium. The structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. Pairs of filling structures delivered to the aneurysm from different access openings of a patient can be simultaneously prepared and pressurized from a single treatment console when treating abdominal aortic aneurysms using the described systems and methods. 1. A system for treating an aneurysm comprising:a first catheter and a second catheter each catheter having an endobag comprising a double-walled filling structure with an aneurysm conforming outer wall and a blood transit lumen creating an inner wall surrounding an endoframe releasably coupled to the respective catheter,each of the first and second catheters includes an endobag pressurization piping having one end releasably coupled to the respective endobag and an inner lumen in communication with the respective endobag with the other end of the respective endobag pressurization piping in communication with an endobag pressurization tubing outside the respective catheter,each of the first and second catheters includes a balloon on which the respective endoframe is mounted so as to expand the endoframe when inflated, each balloon being in communication with an endoframe pressurization tubing outside of the respective catheter, andeach of the first and second catheters comprises a guidewire lumen in communication with a guidewire lumen pressurization tubing extending outside the respective catheter; anda manifold console having two endobag pressurization tubing outlet ports, two ...

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Номер записи: 91
14-01-2016 дата публикации

INTRAGASTRIC DEVICE

Номер: US20160008154A1
Автор: Brister Mark C., Drake Neil R., Faucher Paul D., Lake Matthew S., LIevares Antonio C., Markovic Dubravka, Nider Josefina, Rasdal Andrew P., VandenBerg Amy D.L.
Принадлежит:

Devices and methods for treating obesity are provided. More particularly, intragastric devices and methods of fabricating, deploying, inflating, monitoring, and retrieving the same are provided. 120-. (canceled)21. An intragastric balloon , comprising:a polymeric wall; anda balloon valve system comprising a self-sealing septum in a retaining structure, wherein the self-sealing septum is configured for piercing by a hollow needle of an inflation catheter, wherein the retaining structure comprises a concentric valve system with a smaller inner cylinder housing the self-sealing septum and a larger outer cylinder housing a material configured to provide compressive forces against a bell-shaped needle sleeve of an inflation catheter for inflation and detachment, wherein the smaller inner cylinder comprises a lip configured for an interference fit with the bell-shaped needle sleeve to provide sealing of the balloon valve system to the inflation catheter sufficient to maintain a seal during inflation of the intragastric balloon, wherein the interference fit is configured to provide detachment of the inflation catheter from the intragastric balloon after inflation of the balloon in vivo is complete, wherein the outer cylinder comprises a head unit comprising a circular lip that is larger than a diameter of the inner cylinder and extends to an outside surface of the intragastric balloon, wherein the circular lip of the head unit is configured for an interference fit with the bell-shaped needle sleeve.22. The intragastric balloon of claim 21 , wherein the polymeric wall comprises a barrier material comprising a layer of nylon and a layer of polyethylene.23. The intragastric balloon of claim 21 , wherein the polymeric wall comprises a barrier material comprising a layer of nylon claim 21 , a layer of polyvinylidene chloride claim 21 , and a layer of polyethylene.24. The intragastric balloon of claim 21 , further comprising a balloon outer container.25. The intragastric balloon ...

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Номер записи: 92
14-01-2016 дата публикации

Device and method for deflation and removal of implantable and inflatable devices

Номер: US20160008156A1
Автор: Jason Kwok, Mark Ashby, Outhit Bouasaysy, Robert Pecor
Принадлежит: Reshape Medical Inc

A deflation device including a catheter having a proximal opening at a proximal end and a distal opening at a distal end; and a coring member disposed within the catheter and comprising a handle disposed near the proximal end of the catheter, a cable, and a coring tip disposed near the distal end of the catheter; wherein pressing said distal end of said catheter against said wall of said balloon creates a substantially normalized surface of said balloon relative to a coring tip and wherein the coring tip is a sharpened, hollow cylinder. A method for deflating and removing an implantable, inflatable device comprising: pressing a distal end of a catheter against the wall of an inflated balloon of an implanted device; advancing the coring tip within the catheter beyond the distal end of the catheter and into the balloon, whereby a hole adapted for advancing the catheter is created in the wall of the balloon; and advancing the catheter into the balloon.

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Номер записи: 93
12-01-2017 дата публикации

HOUSINGS FOR USE WITH INFLATION DEVICES AND RELATED METHODS

Номер: US20170007806A1
Автор: Davis Jon, Heyborne Russell D., Weerakoon Prasad, Wilde Larry T.
Принадлежит:

A housing for use in connection with an inflation device can be coupled to a syringe body by a snap-fit connection. The snap-fit type mechanism can include an adaptor and a lock, such as a depressible lock. The housing can enclose an electrical circuit and a display screen that rests on a plurality of resilient pins. The circuit board may be held in place within the housing via one or more heat pins. The inflation device can be configured to measure pressure within a fluid reservoir of a syringe. 1. A syringe assembly comprising:an elongate syringe barrel defining a fluid reservoir;a housing that is coupled to the elongate syringe barrel via a snap-fit connection;a pressure transducer; andan aperture that extends through a wall of the elongate syringe barrel such that the fluid reservoir of the elongate syringe barrel is in fluid communication with the pressure transducer; an adaptor that is coupled to the elongate syringe barrel, the adaptor comprising a plurality of flanges, wherein each flange of the plurality of flanges is in contact with the housing; and', 'a lock that is coupled to the housing, the lock preventing movement of the adaptor relative to the housing., 'wherein the snap-fit connection comprises2. The syringe assembly of claim 1 , further comprising a circuit board and a display screen claim 1 , wherein the circuit board and the display screen are each disposed within the housing.3. The syringe assembly of claim 2 , wherein the pressure transducer is disposed between the adaptor and the lock.4. The syringe assembly of claim 3 , wherein the pressure transducer claim 3 , circuit board claim 3 , and display screen are configured for electrical communication with one another.5. The syringe assembly of claim 1 , wherein the lock is configured to engage with the adaptor to prevent movement of the adaptor relative to the housing after the lock has been depressed.6. The syringe assembly of claim 1 , wherein the lock comprises a first portion for coupling to ...

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Номер записи: 94
12-01-2017 дата публикации

REINFORCED SYRINGE BODY

Номер: US20170007807A1
Автор: Davis Jon, Heyborne Russell D., Weerakoon Prasad, Wilde Larry T.
Принадлежит:

A syringe body is disclosed, wherein the syringe body is configured to withstand pressures within a fluid reservoir of the syringe body of between about 0 atmospheres (atm) and about 81 atm and/or between about 0 atm and about 109 atm. The syringe body may be configured for use in connection with an inflation device. The syringe body may comprise one or more stiffening ribs and/or a stiffening lip. Methods of using the syringe body in connection with an inflation device are also disclosed. 1. A syringe body , comprising:a barrel comprising a proximal end and a distal end, the barrel configured to receive a plunger;one or more stiffening ribs disposed on at least a portion of the distal end of the barrel; anda stiffening lip disposed around at least a portion of a circumference of the distal end of the barrel.2. The syringe body of claim 1 , wherein the barrel is configured to withstand pressures within a fluid reservoir of the barrel of up to at least about 81 atmospheres (atm).3. The syringe body of claim 1 , wherein the stiffening lip extends distally in relation to an exterior surface of the distal end of the barrel.4. The syringe body of claim 1 , wherein the one or more stiffening ribs extend distally in relation to an exterior surface of the distal end of the barrel.5. The syringe body of claim 1 , wherein the one or more stiffening ribs extend proximally in relation to an interior surface of the distal end of the barrel.6. The syringe body of claim 1 , wherein the stiffening lip comprises a first portion and a second portion claim 1 , wherein the first portion is disposed opposite of the second portion claim 1 , wherein each of the first portion and the second portion extend distally in relation to an exterior surface of the distal end of the barrel claim 1 , and wherein a height of the first portion is greater than a height of the second portion.7. The syringe body of claim 6 , further comprising an adaptor integrally formed with the barrel adjacent a distal ...

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Номер записи: 95
12-01-2017 дата публикации

METHODS AND DEVICES FOR MAINTAINING AN OPEN PATHWAY IN A VESSEL

Номер: US20170007810A1
Автор: Golden John B., Parsons Dave, Shoemaker Lisa, Spencer Dean A., TILLMAN Corey, Wold Robert M.
Принадлежит:

Medical devices and methods are disclosed in the present application. In one illustrative example a medical device may comprise a catheter shaft extending from a proximal end to a distal end and the catheter shaft may include a plurality of catheter shaft lumens extending through at least a portion of the catheter shaft. The device may further include a first balloon member defining a first lumen in fluid communication with a first one of the plurality of catheter shaft lumens and a second balloon member defining a second lumen in fluid communication with a second one of the plurality of catheter shaft lumens. In some embodiments, the second balloon member may be disposed around the first balloon member and comprise a plurality of ports and a first raised portion and a second raised portion. 1. A medical device for forming a structured pathway in a vessel of a patient , the device comprising:a catheter shaft extending from a proximal end to a distal end, the catheter shaft including a plurality of catheter shaft lumens extending through at least a portion of the catheter shaft;a first balloon member disposed proximate the distal end of the catheter shaft, the first balloon member defining a first lumen in fluid communication with a first one of the plurality of catheter shaft lumens; anda second balloon member disposed proximate the distal end of the catheter shaft and having a proximal end and a distal end, the second balloon member defining a second lumen in fluid communication with a second one of the plurality of catheter shaft lumens,wherein:the second balloon member is disposed around the first balloon member,the second balloon member comprises a plurality of ports disposed on an outer surface of the second balloon member, andthe second balloon member comprises a first raised portion disposed proximate the proximal end of the second balloon member and a second raised portion disposed proximate the distal end of the second balloon member.2. The medical device ...

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Номер записи: 96
14-01-2016 дата публикации

Nested balloons for medical applications and methods for manufacturing the same

Номер: US20160008589A1
Автор: Eric Mabry, Josef J. Stupecky
Принадлежит: Interface Associates Inc

A nested balloon is provided where each balloon is formed from tubing that optimizes the inner wall stretch thus providing maximum balloon strength. The high pressure, nested balloon is provided with layers that allow for slipping, such that the balloon has a very high pressure rating and toughness, yet excellent folding characteristics. Methods for producing such nested balloons using existing balloon forming equipment are also provided. The nested balloons can have layers with low-friction surfaces. The nested balloons are preferably manufactured using a variety of methods.

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Номер записи: 97
14-01-2021 дата публикации

Streamlined Treatment of Clot Removal, Angioplasty and Prevention of Restenosis Using a Single Integrated Intravascular Device

Номер: US20210007761A1
Автор: Johnson Kirk
Принадлежит:

A single integrated intravascular device including a stentriever and semi-compliant balloon housed therein. After traversing a clot, the device is deployed to a self-expanded state engaging the clot therein, whereupon the device along with the embedded clot is removed. Detecting through imaging a stenosis at an original position of the captured clot, the device is reintroduced to that location and the stentriever is deployed to a self-expanded state. Inflating the semi-compliant balloon enlarges the stentriever to a hyper-expanded state greater than the self-expanded state thereby dilating the vessel while simultaneously completely detaching/releasing the stentriever from a remaining portion of the device. Then the semi-compliant balloon is collapsed and withdrawn along with the remaining portion of the device, while the detachable/releasable portion of the stentriever in the self-expanded state remains in the vessel. 1. A single integrated intravascular device comprising:a pusher member having a proximal end, an opposite distal end;a self-expanding stentriever comprising an open scaffolding formed by multiple struts secured together; the self-expanding stentriever being transitionable upon withdraw of an externally applied mechanical force between a compressed state having a reduced diameter and a self-expanded state having an enlarged diameter; proximal and distal ends of the self-expanding stentriever being secured to the pusher member at respective proximal and distal securement points; the self-expanding stentriever being detachable or releasable from the pusher member at the respective proximal and distal securement points;a semi-compliant balloon housed within the self-expanding stentriever and secured to the pusher member extending axially through the semi-compliant balloon; andan inflation lumen defined axially in the pusher member in fluid communication with the semi-compliant balloon.2. The device according to claim 1 , wherein the self-expanding ...

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Номер записи: 98
11-01-2018 дата публикации

MULTI-STAGE BALLOON CATHETER, AND METHOD OF OPERATING SAME IN A CURVED PASSAGEWAY

Номер: US20180008444A1
Автор: Mayle Brent, Merk James, Skender Davorin, Spindler Ralf
Принадлежит:

A multi-stage balloon catheter has a deflated state, a first inflation state at a first pressure and a second inflation state at a higher fluid pressure. In the first inflation state, the multi-stage balloon has a plurality of bulb segments separated by waist hoops that allow the multi-stage balloon to conform to match the curvature of a passageway. When pressure is increased in the multi-stage balloon from the first inflation state to the second inflation state, the waist locations expand either by breaking or stretching the waist restraints or by overcoming expansion resistance incorporated into the balloon material at the waist locations. The multi-stage balloon catheter may be used to implant a stent in a manner to conform and match a curved passageway rather than tending to straighten the passageway. 1. A multistage balloon catheter comprising:a catheter that defines an inflation lumen and a centerline;a multistage balloon mounted on the catheter and having an interior fluidly connected to the inflation lumen;a plurality of waist hoops at respective waist locations of the multistage balloon, and each adjacent pair of waist hoops being separated by a bulb segment of the multistage balloon;the multistage balloon having a deflated state, a first inflation state and a second inflation state;the first inflation state being characterized by a first fluid pressure in the multistage balloon, hoop tension in the waist hoops holding the waist locations of the multistage balloon against expansion, the bulb segments having an expanded diameter greater than a waist diameter, and each adjacent pair of the bulb segments being pivoted with respect to each other about a pivot axis that is perpendicular to the centerline and intersects the waist hoop between the pair of adjacent bulb segments; andthe second inflation state being characterized by a second fluid pressure that is greater than the first fluid pressure, the waist locations are expanded to an enlarged diameter greater ...

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Номер записи: 99
11-01-2018 дата публикации

Intragastric device

Номер: US20180008446A1
Автор: Amy D.L. VANDENBERG, Andrew P. Rasdal, Antonio C. Llevares, Dubravka Markovic, Josefina Nider, Mark C. Brister, Matthew S. LAKE, Neil R. DRAKE, Paul D. FAUCHER
Принадлежит: Obalon Therapeutics Inc

Devices and methods for treating obesity are provided. More particularly, intragastric devices and methods of fabricating, deploying, inflating, monitoring, and retrieving the same are provided.

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Номер записи: 100