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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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Применить Всего найдено 5920. 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

Method and Apparatus for Delivering a Lead to a Heart

Номер: US20120035584A1

Автор: Amy E. Thompson-Nauman, Melissa G. Tanner Christie

Принадлежит: MEDTRONIC INC

A method and apparatus for creating and accessing an anatomic space between a heart and a pericardial sac. The apparatus includes a catheter having a cryoadhesion member situated on the distal tip of the catheter. The cryoadhesion member is utilized to adhere to the pericardial sac and to retract the sac to create a tent like structure. The catheter allows introduction of an instrument to access the pericardial sac by puncture. The access to the pericardial sac allows delivery of a device, a drug, a biologic or other substance to the heart or the space around the heart.

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Номер записи: 2

01-03-2012 дата публикации

Loop-tip catheter

Номер: US20120053503A1

Автор: Jeff Kraus, John A. Zawacki, Kelly B. Powers, Ryan C. Patterson, Ryan T. Moehle

Принадлежит: CR Bard Inc

A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. The catheter includes a first continuous loop and a second continuous loop formed from a distal extension of the outer wall, the first continuous loop beginning at a first side of the distal end of the body to define a first enclosed opening, and the second continuous loop beginning at a second side of the distal end of the body to define a second enclosed opening.

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Номер записи: 3

08-03-2012 дата публикации

Device and method for removing material from a hollow anatomical structure

Номер: US20120059356A1

Автор: Giorgio di Palma, William A. Cartier, William Appling, William C. Hamilton, Jr.

Принадлежит: Individual

A medical device for removing a material from a hollow anatomical structure is provided. The device includes a radially expandable capture member. The device includes a treatment segment that is positioned distally of the capture member in use and having at least one exit port adapted for delivering a fluid agent to the material. The device includes an embolic capture device that is positioned distally of the treatment segment in use and including a radially expandable filter for capturing a part of the material which travels downstream of the treatment segment. Additionally, a method is provided herein for infusing, injecting, distributing, or releasing an intended fluid into a hollow anatomical structure.

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Номер записи: 4

12-04-2012 дата публикации

Catheter Assembly Including Triple Lumen Tip

Номер: US20120089070A1

Автор: Ryan T. Moehle, Scott W. Sanders, William R. Barron

Принадлежит: CR Bard Inc

A catheter assembly for use in accessing a vasculature of a patient during renal replacement or other therapies is disclosed. In one embodiment, the catheter assembly includes a catheter body that defines first and second lumens. The catheter body defines a distal tip region that includes a venous lateral opening that is in fluid communication with the first lumen and an arterial lateral opening that is in fluid communication with the second lumen.

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Номер записи: 5

26-04-2012 дата публикации

Sinusal guide cannula and kit for irrigation, suction and washing

Номер: US20120101433A1

Автор: William De Jesus Alvarez

Принадлежит: Individual

The present invention provides a cannula guide tube; and a kit with the cannula guide tube, a flexible transparent cannula or a transparent catheter with an inflatable balloon at the catheter end, and an exploratory device. The kit is for irrigation, suction and washing out purulent or liquid discharges from bacteria infected sinuses. First, the exploratory device is used to find the entrance orifice to a sinus; second, the cannula guide tube is positioned in the sinus orifice entrance; and third, the flexible transparent cannula or the transparent catheter is inserted through the cannula guide tube into the sinus. The flexible transparent cannula or transparent catheter is used to suction the purulent or liquid discharge and to irrigate and wash out the sinus. The cannula guide tube has an opening before the tube end, wherein the opening allows seeing the flexible transparent cannula or transparent catheter inside the tube and the flow of purulent or liquid discharge suctioned from the sinus, as the purulent discharge flows throughout the flexible transparent cannula or the transparent catheter.

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Номер записи: 6

21-06-2012 дата публикации

Deflectable catheter constructed to inhibit component migration

Номер: US20120157915A1

Автор: Elizabeth Younger, Gary B. La Traille, John M. Hastings

Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

A catheter includes a shaft having at least one lumen. The lumen comprises a longitudinally-extending trough defined by a longitudinally-extending recess, within which a component is disposed, and a longitudinally extending open edge. The lumen further comprises a longitudinally-extending channel defined by a longitudinally-extending cavity and by the open edge of the trough. A planarity wire is disposed within the cavity and is configured to close the open edge of the trough to within a pre-defined tolerance that is less than the size of the component to retain the component in the recess.

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Номер записи: 7

21-06-2012 дата публикации

Catheter For Reduced Reflux in Targeted Tissue Delivery of a Therapeutic Agent

Номер: US20120157921A1

Автор: Daniel Keeley, Greg Schorn, John R. Hoofnagle, Terri Kapur

Принадлежит: Codman and Shurtleff Inc

A therapeutic agent delivery system that includes a catheter having a proximal end and an opposite distal end. The catheter has a body with a lumen defined therein. The body of the catheter includes a non-bulbous region having a substantially uniform outer diameter and a bulbous region made from an elastically deformable material. While in a first state the bulbous region has a maximum outer diameter greater than the substantially uniform outer diameter of the non-bulbous region; and while in a second state the maximum outer diameter of the bulbous region is reduced relative to that while in the first state.

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Номер записи: 8

28-06-2012 дата публикации

Coaxial guide catheter for interventional cardiology procedures

Номер: US20120165756A1

Автор: Gregg Sutton, Howard Root, Jason M. Garrity, Jeffrey M. Welch

Принадлежит: Vascular Solutions LLC

A coaxial guide catheter to be passed through guide catheter having a first lumen, for use with interventional cardiology devices that are insertable into a branch artery that branches off from a main artery. The coaxial guide catheter is extended through the lumen of the guide catheter and beyond the distal end of the guide catheter and inserted into the branch artery. The device assists in resisting axial and shear forces exerted by an interventional cardiology device passed through the second lumen and beyond the flexible distal tip portion that would otherwise tend to dislodge the guide catheter from the branch artery.

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Номер записи: 9

13-09-2012 дата публикации

Medical device

Номер: US20120232527A1

Автор: Elaine Lim, Gregory E. Mirigian, Stephen Griffin

Принадлежит: Boston Scientific Scimed Inc

A medical device including a shaft having an elongated inner member and an elongated tubular reinforcing member disposed over at least a portion of the inner member. In some embodiments, at least a portion of the outer surface of the inner member is spaced from the inner surface of the reinforcing member, defining a space substantially free of any other structures of the device. In some embodiments, the shaft can include a tip structure disposed on a distal portion of the inner member. In some such embodiments, the reinforcing member has a distal end, and the tip structure is disposed on the distal portion of the inner member adjacent the distal end of the reinforcing member. Additionally, in some embodiments, the reinforcing member can include a plurality of apertures defined therein, for example, to enhance the flexibility or other such characteristics of all or portions of the reinforcing member.

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Номер записи: 10

11-10-2012 дата публикации

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

Номер: US20120259263A1

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

Принадлежит: DC Devices Inc

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

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Номер записи: 11

25-10-2012 дата публикации

Catheter

Номер: US20120271232A1

Автор: Masanori Kitagawa, Takeharu Katsurada

Принадлежит: Asahi Intecc Co Ltd

A catheter includes an inner shaft having a tubular inner layer, a braid arranged on the tubular inner layer, and an outer layer made of resin and covering the braid. The catheter also includes a tubular tip attached to a front end of the inner shaft, the tubular tip has a portion that is thicker than the front end of the inner shaft, and an outer diameter that decreases toward a front end thereof.

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Номер записи: 12

07-02-2013 дата публикации

Methods and systems for treatment of acute ischemic stroke

Номер: US20130035628A1

Автор: Alan K. Schaer, Gregory M. Hyde, Michi E. Garrison, Tony M. Chou

Принадлежит: Silk Road Medical Inc

Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described.

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Номер записи: 13

30-05-2013 дата публикации

CATHETER HAVING A READILY BONDABLE MULTILAYER SOFT TIP

Номер: US20130138038A1

Автор: Lee Jeong S., Wantink Kenneth L.

Принадлежит: Abbott Cardiovascular Systems Inc.

A balloon catheter having a soft distal tip member having a non-tacky inner (liner) layer material and a soft flexible outer layer material, with both materials being readily thermally bondable to the catheter balloon. 1. A balloon catheter , comprising:a) an elongated catheter shaft having a proximal end, a distal end, a proximal shaft section, a distal shaft section, a guidewire receiving lumen extending along at least a distal portion of the catheter shaft, and an inflation lumen;b) a distal tip member located at a distal end of the catheter, having a proximal end longitudinally spaced distally apart from the distal end of the elongated catheter shaft with a gap there between, and a lumen which extends to a guidewire distal port in communication with the shaft guidewire lumen, and having an inner layer formed of a first polymeric material which has a first Shore durometer hardness and which defines at least a section of the lumen of the distal tip, and an outer layer formed of a second polymeric material which has a lower Shore durometer hardness than the first polymeric material and which is fusion bond compatible with the first polymeric material; andc) an inflatable balloon sealingly secured to the distal shaft section so that an interior of the balloon is in fluid communication with the shaft inflation lumen, formed at least in part of a polymeric material fusion bond compatible with the first and second polymeric materials of the tip, and having a distal skirt section surrounding and fusion bonded to a proximal section of the tip along which both the inner and outer layer materials of the tip extend, such that the proximal section of the tip is a fused blend of the balloon distal skirt section and the inner and outer layers of the tip, the fused blend having both the outer layer material and inner layer material of the tip fused to the material of the distal skirt section along the proximal section of the tip.2. The balloon catheter of wherein the distal tip ...

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Номер записи: 14

27-06-2013 дата публикации

Rotate-to-Advance Catheterization System

Номер: US20130165856A1

Автор: Hiroaki Miyoshi, James J. Frassica, Richard M. Andrews, Robert E. Ailinger

Принадлежит: Olympus Endo Technology America Inc, OLYMPUS MEDICAL SYSTEMS CORP

An apparatus for accessing a bodily passageway includes: an endoscope including an insertion portion configured to inserted into the bodily passageway; a drive tube including a lumen configured to receive the endoscope; a helically-wound thread disposed on an outer wall of the drive tube and configured such that rotation of the drive tube causes the drive tube with the endoscope to move along the passageway; a flexible drive shaft configured to transfer rotary motion generated by a power supply; and a rotatable drive collar disposed on the endoscope and configured to rotate the drive tube relative to the endoscope, the rotatable drive collar including a stator, a rotor rotatable over the stator and detachably coupled to the drive tube, a rotary gear configured to transfer the rotary motion from the flexible drive shaft to the rotor to rotate the drive tube, and a watertight seal disposed between the stator and the rotor.

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Номер записи: 15

04-07-2013 дата публикации

METHOD FOR PERFORMING DYNAMIC REGISTRATION, OVERLAYS, AND 3D VIEWS WITH FLUOROSCOPIC IMAGES

Номер: US20130172732A1

Автор: Brost Alexander Benjamin, Chen Terrence, Kiraly Atilla Peter, Strobel Norbert, Wu Wen

Принадлежит:

A method () and system () for performing real-time, dynamic overlays on fluoroscopic images to aid in navigation and localization during medical procedures. 1. A method of registration of image overlays for anatomical images , comprising:a. obtaining dynamic images of an anatomical region of interest;b. providing a static image of the anatomical region of interest;c. performing a rigid registration of the static image with the dynamic images using a lasso catheter secured to an object within the anatomical region of interest;d. estimating motion of the anatomical region of interest in the dynamic images using the lasso catheter; ande. dynamically updating registration of the images using the motion estimation.2. The method of claim 1 , wherein obtaining dynamic images comprises obtaining dynamic fluoroscopy images with corresponding projection geometry for each image of the anatomical region of interest.3. The method of claim 1 , wherein providing a static image comprises providing a segmented volumetric image of the anatomical region of interest.4. The method of claim 3 , wherein providing a static image further comprises marking points of interest of the anatomical region of interest.5. The method of claim 1 , wherein the anatomical region of interest comprises the heart and surrounding vasculature and the lasso catheter is secured to a pulmonary vein.6. The method of claim 1 , wherein the lasso catheter is secured to an object within the anatomical region of interest so as to move in synchronization with the anatomical region of interest and estimating comprises estimating motion of the lasso catheter.7. The method of claim 5 , wherein the lasso catheter is secured to a pulmonary vein so as to move in synchronization with the heart and estimating motion of the heart comprises estimating motion of the lasso catheter.8. The method of claim 6 , wherein estimating motion of the lasso catheter comprises tracking movement of the lasso catheter and approximately ...

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Номер записи: 16

01-08-2013 дата публикации

Catheter

Номер: US20130197418A1

Автор: Catalin Toma, George Oliviu Angheloiu, John A. Kellum, William D. Anderson

Принадлежит: University of Pittsburgh

In one aspect, the invention provides a device comprising a catheter. In another aspect, the invention provides a method of removing an agent from blood.

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Номер записи: 17

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: 18

29-08-2013 дата публикации

Port cannula for the puncturing of port catheters

Номер: US20130226103A1

Автор: Martina Papiorek

Принадлежит: FRESENIUS KABI DEUTSCHLAND GmbH

A port cannula for puncturing implantable or implanted port catheters includes a cannula tube with a ground surface, which is formed from a ground cut inclined with respect to a center axis of the cannula tube by a ground-cut angle and from two facet cuts lying at an angle to each other, and of a cannula tip which is provided by the ground surface and which is oriented via a first bend in the direction of the center axis of the cannula tube. The ground cut and the facet cut are adapted to each other in such a way that, on the one hand, during puncturing, a bending of the cannula is least reduced and, on the other hand, the pain caused to the patient is kept within an acceptable range.

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Номер записи: 19

12-09-2013 дата публикации

Catheter device

Номер: US20130237744A1

Автор: Joachim Georg Pfeffer, Rolf W. Günther, Thomas Schmitz-Rode

Принадлежит: AIS GMBH AACHEN INNOVATIVE SOLUTIONS

The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically.

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Номер записи: 20

19-09-2013 дата публикации

Medical Devices, Methods, and Kits for Delivering Medication to a Bodily Passage

Номер: US20130245609A1

Автор: Dan Dalenberg, Darin Schaeffer, Jack Kolenda, Kathryn Evert, Michael Boyd, Patrick MELDER

Принадлежит: Cook Medical Technologies LLC

Medical devices, methods and kits are described. An exemplary medical device comprises a catheter that has a catheter wall and defines a catheter lumen, a bend, and a coil disposed distal to the bend. The catheter defines one or more apertures that extend through the catheter wall and are in communication with the catheter lumen.

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Номер записи: 21

26-09-2013 дата публикации

Fluid management catheter and methods of using same

Номер: US20130253266A1

Автор: Alan J. Dextradeur, Daniel McCusker

Принадлежит: Codman and Shurtleff Inc

A catheter and method for managing fluid in a patient, the catheter having an elongated shaft with a distal end and a proximal end. The shaft defines at least one lumen extending substantially therethrough, the shaft further defining a plurality of drainage holes along a distal portion of the shaft, with the drainage holes in fluid communication with the lumen. The catheter further has a substantially transparent tip portion attached to the distal end of the shaft with an outer distal leading surface that is substantially rounded to assist insertion through tissue.

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Номер записи: 22

10-10-2013 дата публикации

JETLESS INTRAVENOUS CATHETERS AND MECHANICAL ASSIST DEVICES FOR HAND-INJECTION OF CONTRAST MEDIA DURING DYNAMIC TOMOGRAPHY AND METHODS OF USE

Номер: US20130267845A1

Автор: Coursey Courtney, Howle Laurens E., Nelson Rendon, NICHOLS Eli, Schinders Sebastian T., Weber Paul W.

Принадлежит:

A jetless intravenous catheter for the delivery of a fluid into a peripheral vein of a subject includes an elongated body having proximal and distal ends. The body includes a wall defining an internal fluid passageway configured to receive fluid flowing in a longitudinal direction from the proximal end at a first axial velocity and a tip aperture at the distal end configured to allow fluid to exit therethrough. The body comprises at least one flow reducing feature configured to create a laminar-turbulent transitional flow associated with a fluid flowing in the longitudinal direction at the first axial velocity and configured to reduce the flow velocity of fluid exiting the tip to a second axial velocity that is less than the first axial velocity. 1. A jetless intravenous catheter for the delivery of a fluid into a peripheral vein of a subject , comprising:an elongated body having proximal and distal ends, the body including a wall defining an internal fluid passageway configured to receive fluid flowing in a longitudinal direction from the proximal end at a first axial velocity and a tip aperture at the distal end configured to allow fluid to exit therethrough;wherein the body comprises at least one flow reducing feature configured to create a laminar-turbulent transitional flow associated with a fluid flowing in the longitudinal direction at the first axial velocity and configured to reduce the flow velocity of fluid exiting the tip to a second axial velocity that is less than the first axial velocity; andwherein the at least one flow reducing feature comprises a plurality of apertures in the wall such that a portion of a fluid flowing in the longitudinal direction exits the body through the plurality of apertures.2. (canceled)3. The jetless intravenous catheter of claim 1 , wherein the plurality of apertures comprises a plurality of substantially circular spaced-apart holes.4. (canceled)5. (canceled)6. The jetless intravenous catheter of claim 3 , wherein the ...

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Номер записи: 23

17-10-2013 дата публикации

Infusion catheter assembly with reduced backflow

Номер: US20130274672A1

Автор: Brian D. Nelson

Принадлежит: MEDTRONIC INC

Catheters assemblies having structural configurations operable to reduce backflow along the catheter assembly track, and methods of making and using such catheter assemblies. Catheters assemblies in accordance with embodiments of the present invention find use in various applications including the treatment of acute and chronic medical conditions. An exemplary catheter assembly includes, in one illustrative embodiment, a flexible proximal catheter body portion, and a distal portion of a smaller diameter than the body portion. The distal portion includes a sealed distal tip or end and one or more side flow openings to permit flow of therapeutic substance from the catheter along an axis that is different than, e.g., skewed relative to, a longitudinal axis of the distal portion of the catheter assembly.

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Номер записи: 24

24-10-2013 дата публикации

Applicator

Номер: US20130281918A1

Автор: Koichi Hayakawa

Принадлежит: Terumo Corp

An applicator insertable into a living body includes a nozzle having an elongated nozzle main body and a nozzle head on a front end side of the nozzle main body and through which liquid together with gas is expelled, with the nozzle main body including a flexible curved section. The applicator also includes an outer tube in which is positioned a portion of the nozzle main body so as to be movable along a longitudinal direction. The angle or degree of curvature of the curved section is changed by inserting the curved section into the outer tube to thereby adjust the direction of the nozzle head relative to the axis of the nozzle main body. In addition, a longitudinally extending gap exists between the outer tube and the nozzle. The gap functions as a discharge path for discharging the gas within the body cavity.

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Номер записи: 25

24-10-2013 дата публикации

Wireguide set for changing access sites

Номер: US20130282036A1

Автор: Jeremy R. Schaeffer

Принадлежит: Cook Medical Technologies LLC

A wireguide set is provided for changing access between two access sites. The wireguide set includes a wireguide and a catheter. The wireguide passes through one access site while the catheter passes through another access site. The wireguide and catheter are connectable to each other inside the patient's body. Once connected, the catheter can pull the wireguide through the access site of the catheter. The wireguide set may be used to treat peripheral arterial disease occlusions in the lower leg where it is difficult or impossible to gain access through the occlusion from a femoral site.

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Номер записи: 26

31-10-2013 дата публикации

Catheter device

Номер: US20130289527A1

Автор: Adrian C. Ravenscroft

Принадлежит: PHASE ONE MEDICAL LLC

A catheter assembly comprising an elongated tubular structure having a distal end and a proximal end; a septum disposed within the interior of the tubular structure so as to define a first lumen and a second lumen, and a valve element disposed at the distal end of the tubular structure and configured to move longitudinally relative to the tubular structure between (i) a closed position in which the distal end of the tubular structure is closed off by the valve element, and (ii) an open position in which the distal end of the tubular structure is not closed off by the valve element; wherein the tubular structure, septum and valve element are configured so as to provide fluid communication between the first and second lumen when the valve element is disposed in its closed position.

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Номер записи: 27

14-11-2013 дата публикации

ELECTROMAGNETIC TIP SENSOR

Номер: US20130303945A1

Автор: Blumenkranz Stephen J., Panescu Dorin

Принадлежит: INTUITIVE SURGICAL OPERATIONS, INC.

A medical instrument having a distal tip through which a lumen extends can employ an electromagnetic sensor including a coil that is in the distal tip and winds around the lumen or a coil that is in the distal tip and defines an area having a normal direction that is perpendicular to an instrument axis that extends along the lumen. Three coils can be oriented so that normal directions of the areas defined by the coils are along three orthogonal axes. 1. A medical instrument comprising:a main tube having a distal tip through which a lumen of the main tube extends; andan electromagnetic sensor including a first coil that is in the distal tip and defines a first area through which the lumen passes.2. The instrument of claim 1 , wherein the first area has a first normal direction that is parallel to a central axis of the lumen.3. The instrument of claim 1 , wherein the first area has a first normal direction that is at a non-zero angle to a central axis of the lumen.4. The instrument of claim 1 , wherein the electromagnetic sensor further comprises a second coil that is in the distal tip and defines a second area through which the lumen passes.5. The instrument of claim 4 , wherein the first area has a first normal direction claim 4 , and the second area has a second normal direction that is at a non-zero angle to the first normal direction.6. The instrument of claim 5 , wherein the first normal direction is perpendicular to the second normal direction.7. The instrument of claim 1 , wherein the electromagnetic sensor further comprises a second coil that is in the distal tip and defines a second area through which a first radial axis of the instrument extends.8. The instrument of claim 7 , wherein the second area has a normal direction that is perpendicular to an instrument axis that extends along the lumen.9. The instrument of claim 7 , wherein the electromagnetic sensor further comprises a third coil that is in the distal tip and defines a third area through which a ...

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Номер записи: 28

21-11-2013 дата публикации

Catheter for photodynamic therapy

Номер: US20130310734A1

Автор: Merrill Biel, Nicolas Loebel, Soja-Marie Callahan Morgens

Принадлежит: Sinuwave Tech Inc

The present invention provides a multi-functional catheter that can be used to irrigate a treatment site located within a body cavity, to suction waste materials from the treatment site, and to deliver a treatment composition in a generally uniform distribution pattern onto the treatment site. The present invention also provides a method to use this multi-functional catheter for various applications including medical applications (e.g., photodynamic therapy treatment of chronic recurrent sinusitis).

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Номер записи: 29

28-11-2013 дата публикации

Vascular access configuration

Номер: US20130317481A1

Автор: Brian Andrew Ellingwood, D. Bruce Modesitt

Принадлежит: Arstasis Inc

One embodiment is directed to a method for creating translumenal vascular access, comprising utilizing a dilator adaptor to assist with forming a substantially atraumatic geometric outer junction between a dilator member/introducer member assembly and a guidewire which may be somewhat undersized relative to a lumen formed through the dilator member, thereby creating a geometric fit gap which may be suboptimal from a tissue interfacing perspective. The dilator adaptor may be interposed between the guidewire and dilator member to assist in remedying this fit mismatch, and in generally providing a preferred outer instrument interface for insertion through a small defect in a vessel to gain access to a lumen defined through the vessel.

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Номер записи: 30

05-12-2013 дата публикации

CORPOREAL CATHETER

Номер: US20130324971A1

Автор: Quinn David G.

Принадлежит:

A corporeal catheter comprising a catheter tube having a distal end to which a bolus is connected. The bolus contains a tip section and a tube connector section between which a bolus passage section is disposed. The bolus passage section has a passage therein which communicates through a radial port area with the outside of the generally tubular shaped bolus. The port area includes a port mouth which is elongated between opposed elliptical curved surfaces defining a concave arch. Opposite the concave arch port mouth, under the port is a convex stiffening arch on the bolus and axially aligned with it. 1. In a catheter comprising a bolus connected to a catheter tube , the bolus port comprising:a. a tubular shaped body having at an end section at one end, a tip section at the other end and a passage section between said one end section and said tip section, said passage section having a port opening therefrom;b. a bolus body segment in said passage section opposite said port, said body segment connecting said one end section and said tip section;c. said body segment forming a side wall in each side of said passage section, each side wall having a portion with a height less than 25% of the ID (internal diameter) of the tube lumen of said body such that said body segment extends around 206 degrees of the circumference of the tube lumen;d. said body component also including a structural component protruding radially therefrom the same perpendicular radial axis as the aforementioned radial port passage effective to prevent said body segment from bending and restricting said port;e. said body component also including a curved flow lumen floor segment than rises in a radial fashion from the floor to the lowest point of the passage wall at less than 25% of the tube lumen ID;f. said curve begins at the point where port lumen first becomes open at the top of its ID, and said rising curve thereby leaves the port completely open for fluid flow.2. In a catheter having a bolus at ...

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Номер записи: 31

26-12-2013 дата публикации

Drain catheter

Номер: US20130345679A1

Автор: Andre Garon, Michel Carrier

Принадлежит: Polyvalor LP

A drain catheter comprises a proximal drain tube having a proximal end adapted to outlet drained liquids and a distal end. A tube interface is at a distal end of the proximal drain tube, the tube interface having at least two canals open to a distal end of the proximal drain tube, the at least two canals being in fluid communication with the proximal drain tube. Two or more distal drain tubes each having a proximal end and a distal end, the proximal end of each said distal drain tube being connected to a corresponding one of the canals such that the distal drain tubes are each in fluid communication with the corresponding one of the canals, the distal end of each said distal drain tube being open to collect liquids, a lumen of the distal drain tubes being smaller than a lumen of the proximal drain tube.

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Номер записи: 32

09-01-2014 дата публикации

Apparatus and method for gastric bypass surgery

Номер: US20140012248A1

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

Принадлежит: Individual

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

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Номер записи: 33

06-02-2014 дата публикации

Guide extension catheters and methods for manufacturing the same

Номер: US20140039461A1

Автор: Huisun Wang, James M. Anderson, Joel M. WasDyke

Принадлежит: Boston Scientific Scimed Inc

Guide extension catheters and methods of manufacturing and using guide extension catheters are disclosed. An example guide extension catheter may include a distal sheath having a proximal opening, a distal opening, and a central lumen extending therebetween. The guide extension catheter may also include a proximal shaft having an outer diameter smaller than an outer diameter of the distal sheath, the proximal shaft including a distal opening. The guide extension catheter may also include a coupling member for securing the distal sheath to the proximal shaft. The coupling member may include a distal portion attached to the distal sheath and a proximal portion disposed within the distal opening of the proximal shaft.

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Номер записи: 34

20-02-2014 дата публикации

Guide extension catheter

Номер: US20140052097A1

Автор: Eric M. Petersen, Huisun Wang, Joel M. WasDyke, Steven R. Larsen, Wayne Falk

Принадлежит: Boston Scientific Scimed Inc

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include an elongate tubular member having a proximal region, a distal region, and a slot formed in the tubular member between the proximal region and the distal region. The proximal region of the tubular member may be configured to shift between a first configuration and a collapsed configuration. The guide extension catheter may also include an elongate shaft for shifting the proximal region between the first configuration and the collapsed configuration.

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Номер записи: 35

20-03-2014 дата публикации

MICROCATHETER TIP

Номер: US20140081241A1

Автор: Accisano, III Nicholas Gerald

Принадлежит: Merit Medical Systems, Inc.

The present invention is directed to a dilator having a stiffened shaft for use as part of an introducer sheath assembly. The dilator includes a stiffener tube and a tip of the dilator which extends distally to the dilator stiffener tube. The transition between the stiffener tube and the tip of the dilator is positioned such that when the dilator is positioned within the catheter sheath, the transition is also positioned within the catheter sheath. By positioning the transition between the stiffener tube of the dilator and the tip of the dilator inside the catheter sheath, the catheter sheath can provide strain relief subsequent to lateral movement of the tip of the dilator in a manner that can prevent kinking of the dilator tip at the transition between the stiffener tip and the tip of the dilator. 1. A method of accessing a vasculature or a body cavity of a patient comprising:obtaining a first tubular member comprising a proximal portion and a distal portion, wherein the proximal portion is stiffer than the distal portion, wherein the distal portion comprises a taper adjacent a distal end of the distal portion, wherein the taper comprises a proximal taper end and a distal taper end, and wherein the proximal taper end is disposed distally of the stiffer proximal portion;obtaining a second tubular member;inserting the first tubular member within a lumen of the second tubular member such that a proximal end of the distal portion of the first tubular member is disposed proximally of a distal end of the second tubular member; andintroducing the first tubular member and the second tubular member into a vasculature or a body cavity of a patient.2. The method of claim 1 , wherein after inserting the first tubular member within the lumen of the second tubular member the proximal taper end is disposed distally of the distal end of the second tubular member.3. The method of claim 1 , wherein after inserting the first tubular member within the lumen of the second tubular ...

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Номер записи: 36

07-01-2021 дата публикации

Real-Time Sampling Device

Номер: US20210000334A1

Автор: Christopher R. Ralph, Jason T. Panzenbeck

Принадлежит: Gyrus ACMI Inc

An elongated access device used in a medical system. The elongated access device slidably receives a medical tool and an ultrasound probe. The elongated access device includes a sheath and an intraluminal tip attached to the distal end of the sheath. The intraluminal tip includes ramp and nose donuts being spaced apart from one another and configured to be attached to one or more elongated sleeves. One or more orientation pins are engaged with the respective ramp and nose donuts and may be anchored within the sheath. The medical tool is engaged with a ramp formed in the ramp donut or a ramp received within the ramp donut. The ultrasound probe is configured to engage with the intraluminal tip so as to ensure that the medical tool directionality is oriented toward a target during a procedure.

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Номер записи: 37

02-01-2020 дата публикации

REFERENCE WIRES TO REMOVE NOISE AND ARTIFACTS IN CARDIAC MAPPING CATHETER

Номер: US20200000410A1

Автор: Fuentes-Ortega Cesar, Solis Mario A., Tobey Dustin R., Van Niekerk Pieter E.

Принадлежит:

An apparatus includes a catheter, a sensor, a first pair of wire segments, an artifact reduction feature, and a correction module. The sensor is positioned at a distal end of the catheter and is configured to generate a sensor signal. The first pair of wire segments is coupled with the sensor and extends along the length of the catheter. The artifact reduction feature is positioned proximate to the sensor and includes a second pair of wire segments. The correction module is configured to subtract motion-induced artifacts from signals received from the first pair of wire segments, based on motion-induced artifacts from signals received from the second pair of wire segments, to thereby provide a corrected sensor signal. 1. An apparatus comprising:(a) a catheter, at least a portion of the catheter being sized and configured to fit within a lumen of a human cardiovascular system;(b) a sensor positioned at a distal end of the catheter, the sensor being configured to generate a sensor signal;(c) a first pair of wire segments coupled with the sensor, the first pair of wire segments extending along the length of the catheter;(d) an artifact reduction feature positioned proximate to the sensor, the artifact reduction feature comprising a second pair of wire segments; and(e) a correction module in communication with the first and second pairs of wire segments, the correction module being configured to subtract motion-induced artifacts from signals received from the first pair of wire segments, based on motion-induced artifacts from signals received from the second pair of wire segments, to thereby provide a corrected sensor signal.2. The apparatus of claim 1 , the sensor comprising one or more electrodes configured to sense electrocardiogram signals from adjacent cardiac tissue.3. The apparatus of claim 1 , the sensor comprising a position sensor configured to sense a position of the distal end of the catheter within three-dimensional space.4. The apparatus of claim 1 , ...

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Номер записи: 38

04-01-2018 дата публикации

ENDOVASCULAR DEVICES AND METHODS FOR EXPLOITING INTRAMURAL SPACE

Номер: US20180000513A1

Автор: Atkinson Robert E., Kugler Chad J., Olson Matthew J.

Принадлежит: Bridgepoint Medical, Inc.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen. 1. A method of bypassing an occlusion in a blood vessel through a subintimal pathway , comprising:advancing a subintimal crossing device through a subintimal space between tissue layers of a vascular wall of the blood vessel adjacent to the occlusion;thereafter, advancing an orienting device into the subintimal space;expanding an orienting element of the orienting device in the subintimal space to orient a side port of the orienting device toward a lumen of the blood vessel distal of the occlusion; andadvancing a re-entry device out of the side port and into the true lumen of the blood vessel distal of the occlusion.2. The method of claim 1 , further comprising claim 1 , withdrawing the subintimal crossing device from the subintimal space prior to advancing the orienting device into the subintimal space.3. The method of claim 1 , wherein the orienting element expands in a planar orienting element.4. The method of claim 3 , wherein the planar orienting element is a preformed planar sinusoid.5. The method of claim 3 , wherein the planar orienting element is two wings that extend in opposite directions.6. The method of claim 3 , wherein the side port of the orienting device is oriented at a right angle to a plane of the planar orienting element.7. The method of claim 1 , wherein the subintimal crossing device includes a bulbous distal tip.8. The method of claim 1 , wherein the ...

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Номер записи: 39

07-01-2016 дата публикации

HIGH PRESSURE INJECTION CATHETER SYSTEMS

Номер: US20160001041A1

Автор: Bertleson Kathryn A., Crank Justin M.

Принадлежит:

A needleless fluid injection system including an injection console, an injection chamber in operative communication with the console, an injectate shaft in operative communication with the console, which has an injection lumen extending from a proximal end to a distal end of the shaft, and at least one injection orifice extending through a wall of the injection lumen proximate the distal end of the shaft. The injection lumen can include a sealing cap at its distal end. Alternatively, the system can include an injection plunger having an extending flange portion that is engageable with the console. In another alternative, the system includes an intermediate connector between injection chamber and the injectate shaft. In another embodiment, the system includes a leak management system extending from an outer surface of the injectate shaft. 1. A needleless fluid injection system comprising:an injection console;an injection chamber in operative communication with the console;an injectate shaft in operative communication with the console and comprising an injection lumen extending from a proximal end to a distal end of the shaft;at least one injection orifice extending through a wall of the injection lumen proximate the distal end of the shaft; anda retention gasket mechanism operatively connected to the injection chamber and the injection console.2. The injection system of claim 1 , wherein the retention gasket mechanism comprises a chamber-receiving portion operatively connected to an end of the injection chamber and a console engagement portion engaged with a cavity of the injection console.3. A needleless fluid injection system comprising:an injection console;an injectate shaft in operative communication with the console and comprising an injection lumen extending from a proximal end to a distal end of the shaft;at least one injection orifice extending through a wall of the injection lumen proximate the distal end of the shaft;an injection plunge comprising a groove; ...

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Номер записи: 40

07-01-2021 дата публикации

MODULAR MEDICAL DEVICE CATHETER SYSTEM

Номер: US20210001107A1

Автор: BEACH Bradley

Принадлежит:

A modular medical device catheter including a parent module and an adapter module. An attachment mechanism couples the adapter module to a surface of an inner lumen of the parent module. The attachment mechanism includes a coil in which a surface of the coil directly engages with the surface of the lumen of the parent module. The adapter module can include an elongated element having one or more electrical conductors. 1. An adapter for a medical device catheter comprising:an elongated element comprising an electrical conductor; andan attachment mechanism comprising an interfacing element for engaging a surface of an inner lumen of a medical device catheter to couple the elongated element to the medical device catheter.2. The adapter of claim 1 , further comprising a distal portion of the adapter claim 1 , and wherein the elongated element connects the attachment mechanism to the distal portion of the adapter.3. The adapter of claim 2 , further comprising wherein the distal portion of the adapter comprises an electrically active element.4. The adapter of claim 3 , further comprising wherein the electrically active element extends beyond a distal end of the medical device catheter when the catheter is coupled to the elongated element.5. The adapter of claim 3 , further comprising wherein the electrically active element comprises a sensor or transducer.6. The adapter of claim 1 , further comprising wherein the electrical conductor extends proximally beyond a proximal end of the medical device catheter when the catheter is coupled to the elongated element.7. The adapter of claim 3 , further comprising wherein the elongated element comprises an electrical interface claim 3 , and the electrical conductor of the elongated element facilitates an electrical connection between the electrical interface and the electrically active element.8. The adapter of claim 1 , further comprising wherein the interfacing element engages the surface of a distal end of the inner lumen of the ...

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Номер записи: 41

04-01-2018 дата публикации

SYSTEMS, APPARATUSES, AND METHODS FOR GUIDE WIRE DELIVERY

Номер: US20180001056A1

Автор: Eversull Christian S., Leeflang Stephen A.

Принадлежит:

An apparatus includes a first catheter defining a first longitudinal axis and a first lumen. A first actuator can be coupled to the first catheter and configured to rotate about the first longitudinal axis to deflect a distal end of the first catheter relative to the first longitudinal axis. A second catheter can define a second longitudinal axis and a second lumen. At least a portion of the second catheter can be configured to slide within the first lumen. A magnetic member can be coupled to a distal end of the second catheter. The magnetic member can define a third lumen. The third lumen can be in fluid communication with the second lumen. A second actuator can be coupled to the second catheter and configured to move linearly along the second longitudinal axis so as to vary a spacing between the magnetic member and the first catheter. 1. An apparatus , comprising:a first catheter defining a first longitudinal axis and a first lumen therethrough;a first actuator coupled to the first catheter and configured to rotate about the first longitudinal axis to deflect a distal end of the first catheter relative to the first longitudinal axis;a second catheter defining a second longitudinal axis and a second lumen therethrough, wherein at least a portion of the second catheter is configured to slide within the first lumen;a magnetic member coupled to a distal end of the second catheter, the magnetic member defining a third lumen therethrough, wherein the third lumen is in fluid communication with the second lumen; anda second actuator coupled to the second catheter, the second actuator configured to move linearly along the second longitudinal axis so as to vary a spacing between the magnetic member and the distal end of the first catheter.2. The apparatus of claim 1 , wherein the first catheter includes a first port in fluid communication with the first lumen claim 1 , and the second catheter includes a second port in fluid communication with the second lumen.3. The ...

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Номер записи: 42

02-01-2020 дата публикации

ENHANCED FLEXIBILITY NEUROVASCULAR CATHETER WITH TENSILE SUPPORT

Номер: US20200001046A1

Автор: Khosravi Farhad, Yang Yi, Yee Brandon, Young Lisa M., Yourgenlow Ashoor Shahbazi

Принадлежит:

A neurovascular catheter having an angled distal tip has an elongate flexible tubular body with a proximal end, a distal end and a side wall defining a central lumen. The side wall has a helical coil. A tubular jacket surrounds the helical coil, and extending distally beyond the helical coil distal end to terminate in a catheter distal face. A tubular radiopaque marker is embedded in the tubular jacket in between the distal end of the coil and the distal face. The distal face resides on a plane which crosses a longitudinal axis of the tubular body at an angle within the range of from about 35 degrees to about 55 degrees. The marker has a proximal face that is approximately perpendicular to the longitudinal axis and a distal face that resides on a plane which crosses the longitudinal axis at an angle within the range of from about 35 degrees to about 55 degrees. 1. (canceled)2. An enhanced flexibility neurovascular catheter comprising:a proximal end;a distal end;a side wall defining a central lumen, a distal zone of the side wall comprising a helical coil and a distal face on the distal end, the distal face residing on a plane that crosses a longitudinal axis of the neurovascular catheter at an angle, wherein the angle is at least about 55 degrees and at most about 65 degrees; a plurality of tubular segments, a proximal tubular segment of the plurality of tubular segments having a durometer of at least about 60 D, a distal tubular segment of the plurality of tubular segments having a durometer of at most about 35 D, and', 'a tubular radiopaque marker being distal to the helical coil, the radiopaque marker comprising at least one axially extending slit; and, 'an outer jacket comprisinga filament being positioned the side wall, the filament extending axially from the distal end and towards the proximal end, the filament comprising a length of at least about 10 cm and at most about 50 cm, the filament being configured to resist elongation of the side wall when under ...

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Номер записи: 43

02-01-2020 дата публикации

APPARATUS, SYSTEMS, AND METHODS FOR HIS BUNDLE LEAD PLACEMENT

Номер: US20200001070A1

Автор: Eversull Christian Scott, Leeflang Stephen A., Woods Christopher E.

Принадлежит:

Apparatus, systems, and methods are provided for placing pacing leads or other devices within a patient's heart. In an exemplary embodiment, the apparatus includes a tubular member comprising a flexible distal portion defining a curvilinear shape in a relaxed state including a curved first region defining a first radius lying within a first plane, a substantially straight second region extending from the first curved region defining a first length, and a curved third region extending from the second region defining a second radius smaller than the first radius. 1. An apparatus for delivering a lead or other secondary device into a patient's heart , comprising:an elongate tubular member comprising a proximal end, a distal end sized for introduction into a patient's body, and a lumen extending therebetween,wherein the tubular member comprises a flexible distal portion defining a curvilinear shape in a relaxed state including a curved first region defining a first radius lying within a first plane, a substantially straight second region extending from the first curved region defining a first length, and a curved third region extending from the second region defining a second radius smaller than the first radius.2. The apparatus of claim 1 , wherein the third region extends out of the first plane.3. The apparatus of claim 1 , wherein the second radius of the third region lies within a second plane orthogonal to the first plane.4. The apparatus of claim 1 , wherein the tubular member terminates at a distal tip configured for placement against a wall of the patient's heart such that an outlet communicating with the lumen is positionable against the wall.5. The apparatus of claim 4 , further comprising a pair of electrodes on the distal end on opposite sides of the outlet.6. The apparatus of claim 5 , further comprising a processor coupled to the pair of electrodes for processing signals to identify when the distal tip is placed against a desired location of a wall of the ...

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Номер записи: 44

03-01-2019 дата публикации

TRANSCUTANEOUS DEVICE FOR REMOVAL OF FLUID FROM A BODY

Номер: US20190001031A1

Автор: REAL Keith Joseph, RUSSELL Malcolm Quentin

Принадлежит: PROMETHEUS DELTATECH LIMITED

A single step body insertion device comprises a cannula and a Veress needle which penetrates the skin surface and relevant tissue layers to reach fluid and/or gases that need to be removed from the body. The cannula shaft and tapered tip are of a polymeric material which is flexible and kink resistant. The Veress needle has an engagement feature for engagement with the tapered tip of the cannula for delivery of the cannula into the body as the Veress needle is inserted into the body. The device is used for the management of conditions such as pneumothoraxes and pleural effusions as well as other conditions that require release of fluid and/or gas from the body. 120.-. (canceled)21. A single step body insertion device for removal of fluid from a body comprising a cannula having:a cannula shaft;a tapered tip at the distal end of the cannula shaft; anda hub at the proximal end of the cannula shaft, the hub having:a sealing valve aligned with the longitudinal axis of the cannula shaft for sealingly engaging a Veress needle which is adapted to extend through the cannula to penetrate the skin surface to facilitate delivery of the distal end of the cannula for fluid to be removed from the body; anda side port with a one-way valve which permits flow of fluid through the valve only in the proximal direction,wherein the cannula shaft is flexible and kink resistant, the main body of the cannula shaft is of a uniform thickness and the wall thickness progressively reduces inwardly distally along the distal tip of the cannula,wherein the Veress needle has a proximal hub and the cannula has a proximal hub and wherein a releasable interlock is provided between the needle proximal hub and the cannula proximal hub so that when the interlock is engaged the needle and the cannula move together on insertion into the body and when the interlock is released the Veress needle is removable through the cannula hub, andan indicator to provide a visual indication when the interlock between the ...

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Номер записи: 45

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: 46

14-01-2016 дата публикации

Boosting Catheter and Related Systems and Methods

Номер: US20160008572A1

Автор: DI CAPRIO FERNANDO, Panarello Gianfranco

Принадлежит:

The various embodiments herein relate to a boosting catheter for positioning through a conventional guiding catheter into the vasculature of a patient, the boosting catheter having a distal tubular member and a proximal elongated shaft coupled to the distal tubular member. 1. A method of using a boosting catheter in combination with a standard guiding catheter to perform a procedure at a predetermined location within the vasculature of a patient , the method comprising:positioning the standard guiding catheter into a target vessel in the patient; (a) a distal tube comprising a tubular wall and a tube lumen defined within the tube by the tubular wall; and', '(b) a proximal shaft operably coupled to a proximal portion of the distal tube, the proximal shaft comprising a shaft lumen defined in the proximal shaft, wherein the proximal shaft is configured to extend distally into a portion of the tube lumen such that the shaft lumen extends distally past a proximal end of the distal tube;, 'inserting the boosting catheter into the standard guiding catheter, the boosting catheter comprisingurging the boosting catheter distally through the standard guiding catheter such that a distal portion of the distal tube extends distally out of the distal end of the standard guiding cathether; andperforming a procedure through the boosting cathether and standard guiding catheter.2. The method of claim 1 , wherein the proximal shaft further comprises a distal opening in fluid communication with the shaft lumen claim 1 , whereby the shaft lumen is in fluid communication with the tube lumen.3. The method of claim 2 , wherein the performing the procedure further comprises:introducing a fluid into the shaft lumen at a proximal end of the proximal shaft; andconducting the fluid distally along the length of the shaft lumen and out of the distal opening.4. The method of claim 3 , further comprising conducting the fluid distally along the length of the guiding catheter and into the shaft lumen. ...

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Номер записи: 47

10-01-2019 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20190008534A1

Автор: Chou Tony M., Garrison Michi E.

Принадлежит:

Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described. 135.-. (canceled)36. A system of devices for performing a medical procedure at a treatment site in a cerebral vessel of a patient , the system comprising:a catheter having a catheter lumen having an inner diameter and a distal end; andan inner member sized to slide within the catheter lumen, wherein the inner member defines a single lumen and has a distal portion and a distal-most end having a distal opening, the distal portion having a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter,wherein the system is in an advancement configuration when the inner member is positioned coaxially in the catheter lumen with the distal portion positioned distal to the distal end of the catheter,wherein a flexibility of the distal portion decreases smoothly from a flexibility at the second outer diameter to a flexibility at the first outer diameter when the system is in the advancement configuration, andwherein the system of devices is sufficiently flexible that, when the system is in the advancement configuration, the system is configured to be advanced distal to a petrous portion of an internal carotid artery.37. The system of claim 36 , wherein a stent retriever is positioned within the single ...

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Номер записи: 48

11-01-2018 дата публикации

MICROCATHETER WITH DISTAL TIP PORTION AND PROXIMAL SOLUTION LUMEN

Номер: US20180008801A1

Автор: Lieber Glen, Shaked Yoav, SOLAR RONALD JAY

Принадлежит:

There is provided a microcatheter having a proximal solution lumen and a distal tip portion with a guidewire lumen. The microcatheter and methods of use thereof allows for introduction of solution into a vessel while manipulating the guidewire and/or the microcatheter itself. The solution may be a contrast solution, for viewing of the vessel, a therapeutic or diagnostic solution, or any other type of solution. 1. A microcatheter comprising:an elongate tubular body having a body proximal end, a body distal end and a solution lumen extending axially through said elongate tubular body, said elongate tubular body comprising an outlet port at said body distal end;a tip portion positioned distal to said body distal end, said tip portion having a tip portion proximal end, a tip portion distal end and a tip portion lumen extending axially through said tip portion, said tip portion lumen sized for a substantially close fit for a guidewire to be held therein, wherein said tip portion has a smaller diameter than said elongate tubular body; anda spine wire extending through said elongate tubular body and through said tip portion, said spine wire having a spine wire proximal portion and a spine wire distal portion, wherein at least a portion of said spine wire distal portion is positioned within said tip portion, wherein at least a portion of said spine wire distal portion is more malleable than said spine wire proximal portion such that at least said tip portion distal end may be pre-shaped to a desired configuration.2. The microcatheter of claim 1 , wherein said tip portion proximal end is positioned distal to said outlet port of said elongate tubular body.3. The microcatheter of claim 1 , wherein said elongate tubular body is continuous with said tip portion claim 1 , and is configured to hold a proximal portion of the guidewire therein.4. The microcatheter of claim 1 , wherein a diameter of said solution lumen is larger than a diameter of said tip portion lumen.5. The ...

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Номер записи: 49

09-01-2020 дата публикации

Sealed neurovascular extendable catheter

Номер: US20200008820A1

Автор: Ashoor Shahbazi Yourgenlow, Brandon Yee, Chad C. Roue, Maria Aboytes, Ryan Taylor KRONE, Tiffany C. SUEKAMA, Yi Yang

Принадлежит: Imperative Care Inc

A catheter is provided which includes an outer catheter and an extendable inner catheter. A sealing feature is positioned between the inner catheter and the outer catheter to seal the annular gap between the two while allowing axial translation. The seal may be a compliant protrusion surrounding the inner catheter and may have a chevron-shape for facilitating axial translation. The seal may be a one-way valve configured to allow antegrade flushing but prevent retrograde flow. The seal may be squeegee-like flange on the distal tip of the outer catheter. The seal may be an expandable bulge, which may be mechanically expandable or inflatable or which may be a photosensitive or electrosensitive hydrogel. The seal may include a spring that is radially compressed upon translation or rotation of the inner catheter to transiently break the seal. Also provided is a seal for sealing between the catheter and the vasculature.

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Номер записи: 50

10-01-2019 дата публикации

System and Method of Manufacturing Dialysis Catheters

Номер: US20190009050A1

Автор: Nardeo Mahase

Принадлежит: VascuTech Medical LLC

Disclosed is a system and method for splitting dual lumens using hot stamping. The system includes a die assembly having a heated die with a septum that is configured to split the dual lumen to form a split catheter by splitting the septum of the dual lumen. The die can receive a pair of mandrels therethrough, wherein the mandrels are configured to support a dual lumen loaded thereon. The dual lumen and the mandrels are pushed via a block into the die until the dual lumen passes through the septum within the die and two lumens are fully formed. The lumens are cooled with an air blast and the mandrels are removed after the lumens are cooled. 1. A method of manufacturing a split tip catheter assembly having a dual lumen having a proximal end , a distal end , and a septum extending from said proximal end to said distal end , wherein said septum comprises a thickness that is substantially equal to a thickness of said dual lumen , the method comprising the steps of:providing a heated die comprising a circular cross section with a septum located at a midsection thereof;loading said dual lumen on a pair of mandrels;inserting said pair of mandrels loaded with said dual lumen through said heated die;guiding said dual lumen and said pair of mandrels through said heated die until said septum of said heated die separates said dual lumen into two separate lumens.2. The method of claim 1 , wherein said heated die is heated via a radio frequency heating system.3. The method of claim 1 , further comprising the steps of:cooling said lumens via air blast; andremoving said two separate lumens from said pair of mandrels.4. The method of claim 1 , wherein said heated die is heated to 300° F. to 350° F.5. A device for manufacturing a split tip catheter claim 1 , comprising:a die comprising a circular cross section with a septum located at a midsection thereof, thereby defining a first semicircular section and a second semicircular section, wherein said first semicircular section is ...

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Номер записи: 51

10-01-2019 дата публикации

SYSTEMS AND METHODS FOR REDUCING OR PREVENTING BACKFLOW IN A DELIVERY SYSTEM

Номер: US20190009055A1

Автор: Anand PJ, Sama Blake, Singh Deep Arjun

Принадлежит: ALCYONE LIFESCIENCES, INC.

Systems and methods are disclosed herein that generally involve CED devices with various features for reducing or preventing backflow. In some embodiments, CED devices include a tissue-receiving space disposed proximal to a distal fluid outlet. Tissue can be compressed into or pinched/pinned by the tissue-receiving space as the device is inserted into a target region of a patient, thereby forming a seal that reduces or prevents proximal backflow of fluid ejected from the outlet beyond the tissue-receiving space. In some embodiments, CED devices include a bullet-shaped nose proximal to a distal fluid outlet. The bullet-shaped nose forms a good seal with surrounding tissue and helps reduce or prevent backflow of infused fluid. 126-. (canceled)27. A micro-molding device , comprising:a mold cavity sized and configured to receive a catheter body and a catheter micro-tip therein such that at least one fluid channel of the micro-tip is at least partially disposed within a corresponding fluid line of the catheter body; andone or more mold channels though which a mold fluid can be injected to fill the mold cavity and secure the micro-tip to the catheter body such that the at least one fluid channel of the micro-tip is in fluid communication with the at least one fluid line of the catheter body.28. The device of claim 27 , wherein the device is transparent to allow UV light to pass therethrough to cure mold fluid disposed within the mold cavity.29. The device of claim 27 , wherein the mold cavity is sized and configured to form a bullet nose portion over the micro-tip and over at least a portion of an outer sheath received in the mold cavity.3038-. (canceled) This application is a continuation of U.S. application Ser. No. 14/132,762 filed on Dec. 18, 2013, which claims priority to U.S. Provisional Application No. 61/738,850 filed on Dec. 18, 2012 and U.S. Provisional Application No. 61/835,912 filed on Jun. 17, 2013, which are each incorporated herein by reference in their ...

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Номер записи: 52

08-01-2015 дата публикации

Needleless injection device components, systems, and methods

Номер: US20150011966A1

Автор: Justin M. Crank

Принадлежит: AMS Research LLC

Needleless injection device components, systems, and methods that involve features including an elongate shaft that has a working shaft comprising a working shaft proximal end, a working shaft distal end, and a working lumen extending between the working shaft proximal end and the working shaft distal end, an injection shaft including an injection shaft proximal end, an injection shaft distal end, and a needless injection orifice disposed through the sidewall at the injection shaft distal end, the injection shaft moveably disposed within the working lumen, and a tissue tensioner secured to the injection shaft at the injection shaft distal end and moveable relative to the working lumen, the tissue tensioner having an expandable surface capable of exhibiting an expanded state and a non-expanded state, the tissue tensioner in the expanded state being capable of tensioning luminal tissue for injection by the needless injection orifice.

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Номер записи: 53

08-01-2015 дата публикации

INTRODUCER SHEATH

Номер: US20150011978A1

Автор: OKAMURA Ryo, YAZAKI Yushin

Принадлежит: TERUMO KABUSHIKI KAISHA

An introducer sheath is provided with a sheath tube which is formed of a tubular member provided with a hollow portion through which an elongated body is freely inserted and includes a distal portion having a tapering outer diameter and a main body portion having a constant outer diameter. The distal portion of the sheath tube includes a concave portion which is bent radially inward from an end portion, through which an elongated body protrudes, in a concave shape in a cross section parallel to an axial direction, and a convex portion which is contiguous to the concave portion and is bent radially outward in a convex shape in a cross section parallel to the axial direction. 1. An introducer sheath which is formed of a tubular member provided with a hollow portion through which an elongated body is freely inserted , comprising:a distal portion which has a tapering outer diameter;a main body portion which is located proximally of the distal portion; andwherein the distal portion has an external shape including a concave portion which is bent radially inward from an end portion, through which an elongated body protrudes, in a concave shape in a cross section parallel to an axial direction, and a convex portion which is contiguous to the concave portion and is bent radially outward in a convex shape in a cross section parallel to the axial direction.2. The introducer sheath according to claim 1 , wherein an external shape of the concave portion or the convex portion is a shape which is bent in a quadratic curve shape.3. The introducer sheath according to claim 2 , wherein the external shape which is bent in the quadratic curve shape is a shape which is bent in a parabola shape.4. An introducer assembly comprising:an elongated dilator possessing a distal end;an elongated introducer sheath comprised of a tubular member possessing a hollow portion into which the elongated dilator is freely insertable, the introducer sheath extending the introducer sheath including a distal ...

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Номер записи: 54

03-02-2022 дата публикации

3d centesis drainage catheter device

Номер: US20220032001A1

Автор: Bela Kis

Принадлежит: H Lee Moffitt Cancer Center and Research Institute Inc

Various implementations of a drainage catheter device include an outer drainage catheter and a distal portion. The outer drainage catheter has a proximal end and a distal end. The distal portion is adjacent the distal end of the outer drainage catheter and extends straight in a first configuration and forms a plurality of loops in a second configuration. A surface of the distal portion that faces radially inward in the second configuration defines a plurality of openings.

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Номер записи: 55

03-02-2022 дата публикации

NEUROSURGICAL APPARATUS AND METHOD

Номер: US20220032005A1

Автор: GILL Steven Streatfield

Принадлежит:

A method for delivering fluid to the brain of a subject using an intraparenchymal catheter, the method comprising the step of inserting the catheter into the brain using a posterior to anterior approach and methods of treating neurodegenerative disorders using this delivery method, as well as methods for delivering fluid to an elongate structure of the brain using an intraparenchymal catheter, the method comprising the step of inserting a catheter into the brain along an insertion axis that is substantially aligned with a long axis of the elongate structure. 1. A method for intraparenchymal delivery of a fluid to an elongate structure of a brain of a subject , the method comprising delivering the fluid to the elongate structure by inserting at least one intraparenchymal catheter having at least one step into the brain using a posterior to anterior approach along an insertion axis that is substantially aligned with a long axis of the elongate structure.2. The method of claim 1 , wherein the at least one step is located within the elongate structure.3. The method of claim 1 , wherein the insertion axis is aligned with the long axis of the elongate structure to within 40° or less.4. The method of claim 1 , wherein the catheter is inserted into a posterior portion of the elongate structure along the long axis to an anterior portion of the elongate structure.5. The method of claim 1 , wherein the subject is under general anesthetic and in a prone position.6. The method of claim 1 , wherein the fluid includes at least one therapeutic agent selected from the group consisting of a chemotherapy drug claim 1 , a neurotrophin claim 1 , an enzyme claim 1 , a growth factor claim 1 , an antibody claim 1 , an immunotoxin claim 1 , small inhibitory RNA (siRNA) claim 1 , antisense oligonucleotides claim 1 , viral vectors claim 1 , drug releasing nanoparticles claim 1 , and transgenes.7. A method for treating a neurodegenerative disorder claim 1 , the method comprising delivering a ...

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Номер записи: 56

19-01-2017 дата публикации

Universal Catheter Tip and Methods for Use

Номер: US20170014252A1

Автор: Patrick W. KELLY

Принадлежит: SANFORD HEALTH

The present disclosure provides a catheter tip comprising a flexible housing comprising a cavity extending between an expandable opening arranged at a first end of the catheter tip and a second end of the catheter tip, wherein the expandable opening is configured to increase in diameter from a first position to a second position in response to application of an external force to the second end of the flexible housing.

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Номер записи: 57

18-01-2018 дата публикации

HIGH FLEXIBILITY, KINK RESISTANT CATHETER SHAFT

Номер: US20180015254A1

Автор: Arp Scott, Cragg Andrew H., Logan John

Принадлежит:

An enhanced flexibility catheter shaft having an elongate flexible body with a proximal end, a distal end, and at least one lumen extending therethrough. A distal, flexible section on the body has a ribbed or corrugated tubular membrane having at least a first reinforcement structure, such as a first helical support, on a radially exterior or interior surface of the membrane and optionally a second reinforcement structure, such as a second helical support, on the other of the radially interior or exterior surface of the membrane 1. A highly flexible , kink resistant catheter with floating tubular support , comprising: an inner tubular layer surrounding the lumen;', 'a helical support, carried concentrically over the inner layer and having adjacent loops spaced axially apart; and', 'an outer tubular layer, carried concentrically over the helical support;, 'an elongate tubular body, having a proximal end, a distal end and a central lumen, the tubular body comprisingwherein the inner layer and the outer layer are bonded together in the space between adjacent loops of the tubular support to form a helical channel and the helical support is floating unbonded within the helical channel.2. A highly flexible catheter as in claim 1 , wherein at least one of the inner and outer tubular layers comprises ePTFE or electrospun PTFE.3. A highly flexible catheter as in claim 2 , wherein the ePTFE has a wall thickness of no more than about 0.004″.4. (canceled)5. A highly flexible catheter as in claim 1 , wherein the helical support comprises Nitinol wire.6. (canceled)7. (canceled)8. A highly flexible catheter as in claim 1 , wherein the inner tubular layer comprises two distinct sections claim 1 , the two distinct sections comprising a proximal section and a distal section.9. (canceled)10. A highly flexible catheter as in claim 8 , wherein the proximal section and the distal section are joined by a skived joint.11. (canceled)12. A highly flexible catheter as in claim 1 , wherein a ...

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Номер записи: 58

18-01-2018 дата публикации

METHODS AND SYSTEMS FOR TREATING HYDROCEPHALUS

Номер: US20180015267A1

Автор: Heilman Carl, Malek Adel M., Rezac David A., Robinson Timothy W., Ting Joseph

Принадлежит: CereVasc, LLC

Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour. 1. A shunt configured for being deployed in an inferior petrosal sinus (IPS) of a patient , the shunt comprising:a distal portion configured for being introduced into, and secured within, a cerebellopontine (CP) angle cistern of the patient via the IPS, the CP angle cistern containing cerebrospinal fluid (CSF); anda main body portion configured for being disposed within the IPS, the main body portion including a shunt lumen, wherein the shunt lumen is in fluid communication with one or more CSF intake openings located in the distal portion; anda CSF outflow opening in fluid communication with the shunt lumen,such that, when the shunt is deployed in the IPS with the distal portion of the shunt disposed within the CP angle cistern and the main body portion of the shunt disposed within the IPS, CSF flows from the CP angle cistern through the one or more CSF intake openings, shunt lumen, and CSF outflow opening, respectively, into the venous system of the patient.2. The shunt of claim 1 , wherein the distal portion of the shunt self-expands from a collapsed delivery configuration to an expanded deployed configuration after it is deployed within the CP angle cistern.3. The shunt of claim 1 , wherein the ...

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Номер записи: 59

21-01-2016 дата публикации

CONVECTION ENHANCED DELIVERY DEVICE AND SYSTEM

Номер: US20160015930A1

Автор: Gao Shengqiang, KOLOSI William, Vogelbaum Michael A.

Принадлежит:

A convection enhanced delivery device comprises a support member and an elongated microcatheter carried by the support member. The microcatheter projects lengthwise away from the support member. The microcatheter includes a catheter lumen extending in a first direction. A fluid conduit carried by the support member. The fluid conduit includes a conduit lumen that extends in a second direction different than the first direction. The conduit lumen is in fluid communication with the catheter lumen. An inlet port and a connecting port are also carried by the support member. The inlet port is in fluid communication with the fluid conduit. The connecting port is separate from the inlet port and is in fluid communication with the fluid conduit. The connecting port is configured to engage an end portion of an external fluid conduit such that the external fluid conduit projects away from the connecting port and from the support member.

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Номер записи: 60

17-01-2019 дата публикации

CATHETER

Номер: US20190015628A1

Автор: KAWAGUCHI Michihiro

Принадлежит: TERUMO KABUSHIKI KAISHA

A catheter is disclosed, which includes a flexible catheter tube. The catheter tube has an elongated main body portion, and a helical portion which is formed on a distal side of the main body portion and which is wound in a helical shape in a natural state where no external force is applied thereto. In the natural state, in the helical portion, a central axis serving as a winding center of the helical portion intersects a central axis extending along a longitudinal direction of the main body portion. In addition, it is preferable that an angle formed between the central axis of the helical portion and the central axis of the main body portion is a right angle or an obtuse angle. 1. A catheter comprising:a flexible catheter tube, the catheter tube having an elongated main body portion and a helical portion which is formed on a distal side of the main body portion, the helical portion being wound in a helical shape in a natural state where no external force is applied to the helical portion; andwherein in the natural state, in the helical portion, a central axis serving as a winding center of the helical portion intersects a central axis extending along a longitudinal direction of the main body portion.2. The catheter according to claim 1 , wherein an angle formed between the central axis of the helical portion and the central axis of the main body portion is a right angle or an obtuse angle.3. The catheter according to claim 2 , wherein the obtuse angle is 90 degrees to 120 degrees.4. The catheter according to claim 1 , wherein a number of windings of the helical portion is one to three times.5. The catheter according to claim 1 , wherein in the natural state claim 1 , an outer diameter of the helical portion gradually increases toward a distal side of the catheter.6. The catheter according to claim 5 , wherein in the natural state claim 5 , a pitch of the helical portion is three times to six times an average outer diameter of the helical portion.7. The catheter ...

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Номер записи: 61

17-01-2019 дата публикации

SYSTEM AND METHOD FOR LOW-PROFILE OCCLUSION BALLOON CATHETER

Номер: US20190015630A1

Автор: FRANKLIN Curtis J., KRUMMENACHER Todd J., SPENCER David

Принадлежит:

An occlusion catheter system includes a proximal hub having an inflation connection port and an inflation pathway. An inflation catheter member is connected to the proximal hub and has an inflation lumen. A stiffener member defines a longitudinal axis. The proximal end of the stiffener member is connected to the proximal hub. The stiffener member extends through a portion of the inflation lumen. An occlusion balloon has a proximal balloon end and a distal balloon end. A distal catheter member is positioned substantially on the longitudinal axis and is connected to the distal end of the stiffener member. An atraumatic tip is positioned on a distal end of the distal catheter member. The atraumatic tip has a substantially circular profile in a relaxed configuration. A pressure sensor is connected to the occlusion catheter system distally relative to the occlusion balloon and is connected to a processor by electrical wiring. 1. An occlusion catheter system for occlusion or partial occlusion of a large vessel , the occlusion catheter system comprising:a proximal hub having an inflation connection port and an inflation pathway defined in the connection port;an inflation catheter member connected to the proximal hub and including a first port, the inflation catheter member having an inflation lumen in communication with the inflation pathway, the inflation catheter member defining a longitudinal axis;an occlusion balloon having a proximal balloon end, a distal balloon end and defining a space therein between the proximal and distal balloon ends, the proximal balloon end connected proximate to a distal end of the inflation catheter, the space of the occlusion balloon in communication with the inflation lumen through the first port, the occlusion balloon having a first pressure that is below a failure pressure of the occlusion balloon;a distal catheter member positioned substantially on the longitudinal axis, the distal catheter member connected to the occlusion balloon ...

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Номер записи: 62

15-01-2015 дата публикации

MEDICAL TREATMENT INSTRUMENT

Номер: US20150018616A1

Автор: KUMOYAMA Kenichi

Принадлежит:

A medical treatment instrument includes a tube-shaped elongated main body; and an insertion guide part mounted to a distal end of the elongated main body. The insertion guide part includes a frame body mounted to a distal portion of the elongated main body; and a flexible bridge portion which is disposed so as to bridge points of an end edge of the frame body, the flexible bridge portion including a linear body or band-shaped body projecting in a distal direction beyond the elongated main body. 1. A medical treatment instrument comprising:a tube-shaped elongated main body; and a frame body mounted to a distal portion of the elongated main body; and', 'a flexible bridge portion which is disposed so as to bridge points of an end edge of the frame body, the flexible bridge portion comprising a linear body or band-shaped body projecting in a distal direction beyond the elongated main body., 'an insertion guide part mounted to a distal end of the elongated main body, wherein the insertion guide part comprises2. The medical treatment instrument according to claim 1 , wherein the medical treatment instrument comprises a plurality of bridge portions that are provided at different positions of the end edge.3. The medical treatment instrument according to claim 2 , wherein each of the plurality of bridge portions comprises a distal end claim 2 , and the distal ends of each of the plurality of bridge portions are not fixed to each other.4. The medical treatment instrument according to claim 1 , wherein the bridge portion is composed of a band-shaped body claim 1 , and an end portion of the band-shaped body projects in the distal direction beyond the elongated main body.5. The medical treatment instrument according to claim 1 , wherein the insertion guide part decreases in diameter in multiple steps along the distal direction.6. The medical treatment instrument according to claim 3 , wherein the insertion guide part decreases in diameter in multiple steps along the distal ...

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Номер записи: 63

16-01-2020 дата публикации

Self-Centric Symmetric Catheter

Номер: US20200016367A1

Автор: Basiony Mohamed A

Принадлежит:

A hemodialysis self-centric symmetric catheter comprises an elongated portion, a proximal end and a distal end defining a longitudinal axis. Distal end may have two distal segments that may split (separated) from each other with respect to a longitudinal axis at a proximal end of said two distal segments and re-bonded with a distal portion at a distal end of said two distal segments. Each distal segment has a curved portion. Proximal end of said two distal segments may be coupled with a distal end of elongated portion. First distal segment and second distal segment are exactly symmetric (similar) to each other. Each distal segment may have a lumen, a distal tip and a distal angled opening. 1. A hemodialysis self-centric symmetric catheter comprising:an elongated portion, a proximal end and a distal end defining a longitudinal axis;a distal end comprising two splitted distal segments that are splitted with respect to a longitudinal axis at a proximal end of said two distal segments and re-bond again at a distal end of said two distal segments with a distal potion. Each of said distal segment has a curved portion. Said first distal segment and said second distal segment are exactly symmetric (similar) to each other. Each of said distal segments has a distal lumen, a distal tip and a distal angled opening.2. The hemodialysis self-centric symmetric catheter of claim 1 , wherein said catheter has a symmetric configuration with respect to said catheter lumens and said two distal segments.3. The hemodialysis self-centric symmetric catheter of claim 1 , wherein said two distal segments are splitted with respect to a longitudinal axis at a dividing point of a proximal end of said two distal segments4. The hemodialysis self-centric symmetric catheter of claim 1 , wherein each of said distal segment has a curved portion with respect to said a longitudinal axis.5. The hemodialysis self-centric symmetric catheter of claim 1 , wherein said two distal tips of said two distal ...

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Номер записи: 64

16-01-2020 дата публикации

CURVED CATHETER FOR INCREASED INTRATHECAL DRUG DISPERSION

Номер: US20200016368A1

Автор: Bodner Jeffrey

Принадлежит:

An intrathecal drug delivery system configured to improve dispersion of medicament with cerebral spinal fluid in a subarachnoid space of a patient. The intrathecal drug delivery system including an implantable medical pump and a catheter having a wall defining a lumen extending between a proximal end in fluid communication with the implantable pump and structure defining a medicament exit positionable within the subarachnoid space of the patient, the wall further defining at least one feature configured to generate vortices within the cerebrospinal fluid for the purpose of improving intrathecal drug dispersion. 1. An intrathecal drug delivery system configured to improve dispersion of medicament with cerebrospinal fluid in a subarachnoid space of a patient , the intrathecal drug delivery system comprising:an implantable medical pump; anda catheter having a wall defining a lumen extending between a proximal end in fluid communication with the implantable medical pump and structure defining a medicament exit positionable within the subarachnoid space of the patient, the wall further defining at least one feature configured to generate vortices within the cerebrospinal fluid for the purpose of improving intrathecal drug dispersion.2. The intrathecal drug delivery system of claim 1 , wherein the at least one feature is a curve defined by the catheter wall configured to orient a distal portion of the catheter at an angle with respect to a proximal portion of the catheter.3. The intrathecal drug delivery system of claim 2 , wherein the curve is configured to orient the distal portion substantially orthogonal to a natural flow of the cerebrospinal fluid within the subarachnoid space.4. The intrathecal drug delivery system of claim 3 , wherein the distal portion induces a von Kármán vortex street within the cerebrospinal fluid.5. The intrathecal drug delivery system of claim 3 , wherein the distal portion induces turbulence within the cerebrospinal fluid.6. The intrathecal ...

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Номер записи: 65

16-01-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200016369A1

Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.

Принадлежит:

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described. 1. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen and a distal end; and', 'an inner member, having a lumen, extending through the catheter lumen, wherein a tapered distal end of the inner member extends distal to the distal end of the catheter forming an assembled coaxial system of devices; and, 'assembling a coaxial system of devices, the coaxial system of devices comprisingadvancing the assembled coaxial system of devices together within the petrous portion of the internal carotid artery while a guidewire is not present in the lumen.2. The method of claim 1 , further comprising removing the inner member after the catheter is placed at or near the treatment site.3. The method of claim 2 , further comprising advancing a treatment device into the catheter lumen so that the treatment device resides at or near the treatment site.4. The method of claim 2 , further comprising removing occlusive material while applying a negative pressure to the catheter lumen to capture occlusive material at claim 2 , within claim 2 , or through the distal end of the catheter.5. The method of claim 4 , wherein the step of removing occlusive material ...

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Номер записи: 66

15-01-2015 дата публикации

METHOD FOR MANUFACTURING OF URINARY CATHETERS

Номер: US20150018804A1

Автор: Rolsted Erik

Принадлежит:

A method for manufacturing an elongated element () is provided. The method comprises arranging a molding cavity (), defined by a mold () and a mold insert (), said mold insert () comprising a mold core () and a displaceable mold cavity wall (), said displaceable mold cavity wall () being arranged between the mold () and the mold core (), such that the molding cavity has a start volume in a start position of the displaceable mold cavity wall (). Then a liquid material is injected into a proximal end () of the molding cavity (), where after the displaceable mold cavity wall () is displaced in relation to and along with the mold () and the mold core (), distally during said injection, to increase the molding cavity volume from the start volume into an end volume at an end position of the displaceable mold cavity wall (), wherein the molding cavity () in said end position of the displaceable mold cavity wall () corresponds to the elongated element (). The liquid material is solidified, such that the elongated element () is formed, and the elongated element () and mold insert () is removed from said mold (), where after the elongated element () is removed from said mold insert (). An elongated element and a mold assembly for the manufacture thereof are also provided. 1. A method for manufacturing an elongated element , comprising the steps of:arranging a molding cavity, defined by a mold and a mold insert, said mold insert comprising a mold core and a displaceable mold cavity wall, said displaceable mold cavity wall being arranged between the mold and the mold core, such that the molding cavity has a start volume in a start position of the displaceable mold cavity wall;injecting a liquid material into a proximal end of the molding cavity;displacing the displaceable mold cavity wall, in relation to and along with the mold and the mold core, distally during said injection, to increase the molding cavity volume from the start volume into an end volume at an end position of ...

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Номер записи: 67

26-01-2017 дата публикации

Intermittent urinary catheter

Номер: US20170021130A1

Автор: Philip J. Dye

Принадлежит: Philip J. Dye

A catheter has an entrance opening defined by the first end of a catheter body and non-circular inner surface in cross section. The entrance opening intersects a longitudinal axis extending longitudinally through the center of a lumen adapted to drain urine from a bladder. The non-circular inner surface can have dimples, channels, or grooves, all of which decrease frictional fluid forces against the inner surface as the urine drains. The catheter is free of any eyelets formed in the side wall of the catheter body. The catheter further includes a plurality of distinct longitudinally extending convex outer surfaces and may have an enlarged head.

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Номер записи: 68

26-01-2017 дата публикации

METHODS AND SYSTEMS FOR TREATING HYDROCEPHALUS

Номер: US20170021146A1

Автор: Heilman Carl, Malek Adel M., Rezac David A., Robinson Timothy W., Ting Joseph

Принадлежит:

Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour. 1. A method for treating hydrocephalus , comprising:deploying a shunt in a body of a hydrocephalus patient so that a distal portion of the shunt is at least partially disposed within a cerebellopontine (CP) angle cistern of the patient, a body of the shunt is at least partially disposed within an inferior petrosal sinus (IPS) of the patient, and a proximal portion of the shunt is at least partially disposed within, or proximate to, a jugular vein (JV) of the patient,wherein, after deployment of the shunt, cerebrospinal fluid (CSF) flows from the patient's CP angle cistern into the patient's JV via the shunt.2. The method of claim 1 , wherein the hydrocephalus being treated is normal pressure hydrocephalus.3. The method of claim 1 ,the distal portion of the deployed shunt comprising one or more CSF intake openings positioned within the patient's CP angle cistern, andthe proximal portion of the deployed shunt comprising a CSF outflow opening disposed within, or proximate to, the patient's JV,wherein the shunt comprises a lumen extending between the one or more CSF intake openings and the CSF outflow opening, and a valve interposed in the shunt lumen between the one or more CSF fluid intake openings and ...

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Номер записи: 69

10-02-2022 дата публикации

MEDICAL ASPIRATION DEVICES AND METHODS

Номер: US20220039814A1

Автор: Fojtik Shawn P.

Принадлежит:

A medical aspiration device includes an internal elongated element and a bulbous tip at a distal end of the internal elongated element. Together, the internal elongated element and the bulbous tip may define a disruptor of the medical aspiration device. The medical aspiration device may also include an outer elongated element, or a catheter, that includes a lumen within which the internal elongated element may be disposed and relative to which the bulbous tip may be extended and retracted. Extension and retraction of the bulbous tip may provide control over an aspiration force, or suction, that has been applied through the catheter to a distal tip of the catheter. Extension and retraction of the bulbous tip may disrupt matter to be aspirated by the medical aspiration device in a manner that facilitates aspiration of the matter. 1. A medical aspiration device , comprising:an internal elongated element including a lumen with an inner diameter sufficient to receive a guide wire and an outer diameter small enough to enable fluids to flow between the internal elongated element and a catheter within which the internal elongated element is positioned;a bulbous tip at a distal end of the internal elongated element, the bulbous tip having a maximum outer diameter that is at least as large as an inner diameter of a lumen of the catheter within which the internal elongated element is positioned to enable a portion of the bulbous tip to seal against the catheter at the distal end.2. The medical aspiration device of claim 1 , wherein the internal elongated element comprises a hypotube.3. The medical aspiration device of claim 2 , wherein the hypotube comprises a metal hypotube.4. The medical aspiration device of claim 3 , wherein the metal hypotube comprises a shape memory alloy.5. The medical aspiration device of claim 4 , wherein the shape memory alloy includes at least one bend.6. The medical aspiration device of claim 1 , wherein the bulbous tip includes a proximal side that ...

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Номер записи: 70

10-02-2022 дата публикации

SYSTEMS AND METHODS FOR PROTECTING THE CEREBRAL VASCULATURE

Номер: US20220039936A1

Автор: Blaeser David John, Fields Antony J., Fifer Daniel Wayne, Haarstad Philip Jon, Hamill Whittaker Ian, Purcell Cameron Paul

Принадлежит: CLARET MEDICAL, INC.

Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. 1. A method of inhibiting embolic material from entering cerebral vasculature , the method comprising:deploying a first filter system by positioning a guidewire through a right subclavian artery and into a left common carotid artery;tracking a distal portion of the first filter system over the guidewire, the distal portion of the first filter system comprising a proximal self-expanding filter assembly including a proximal filter and a distal self-expanding filter assembly including a distal filter;deploying the proximal filter in an innominate artery;steering the distal self-expanding filter assembly into the left common carotid artery;deploying the distal filter in the left common carotid artery; an outer sheath;', 'an inner tubular member within the outer sheath; and', 'an additional self-expanding filter assembly within the outer sheath and coupled to the inner tubular member; and, 'prior to, simultaneously with, or after deploying the first filter system, deploying a second filter system by tracking a distal portion of the second filter system into a left subclavian artery, the distal portion of the second filter system comprisingat least one of proximally retracting the outer sheath and distally advancing the inner tubular member to deploy the additional self-expanding filter assembly from the outer sheath.2. The method of claim 1 , wherein deploying the second filter system includes tracking the distal portion of the second filter system from an incision in a left brachial artery or left radial artery into the left ...

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Номер записи: 71

10-02-2022 дата публикации

Multi-Lumen Intravascular Catheters with inner Converging Lumens for Multiple Guidewire Control

Номер: US20220040447A1

Автор: Mark W. Mewissen

Принадлежит: Mekal LLC

Catheter systems with multiple inner lumens that converge at the catheter distal tip are preloaded with at least two guidewires. The catheters offers sequential probing with two or more guidewires, therefore improving on procedural speed and accuracy. The catheters comprise proximal and distal regions enabling angled lumens to merge into a common lumen with a diameter slightly larger to the largest of the two proximal lumens. The confluence of the two proximal lumens comprises a single lumen with a reduced profile and cross sectional area. The lumens merge with the larger lumen at an angle greater than zero degrees, and the distal tip has a diameter equal to the diameter of the smaller proximal lumen. The proximal region serves as a directed passageway for different guidewires that enter the catheter through two proximal lumens and which may be reoriented through a convergence region for sequential exiting of the catheter tip.

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Номер записи: 72

10-02-2022 дата публикации

Optimized Catheter Sheath for Rx Catheter

Номер: US20220040454A1

Автор: Albert Harold Dunfee, Mark Alan Hamm

Принадлежит: Canon USA Inc

A catheter configured for placement within a bodily lumen, comprises: a catheter sheath defining a first lumen for medical tools; and an exchange segment defining a second lumen for a guidewire. A proximal end of the exchange segment is joined with a distal end of the catheter sheath in a lengthwise direction forming an angle therebetween, such that the second lumen is laterally offset by a distance and angled with respect to the first lumen. When the catheter is placed within a patient's anatomy, the catheter sheath and/or the exchange segment straightens out so that the axis of the second lumen and the axis of the first lumen become substantially parallel to each other. The offset distance between the axes of sheath and exchange segment depends mainly on the diameter of the guidewire to be used, on the diameter of the sheath, and the angle of the junction.

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Номер записи: 73

24-01-2019 дата публикации

Catheters including radiopaque markers and methods of making the same

Номер: US20190022352A1

Автор: Juan Ramon GONZALEZ, Rudolph A. Montalvo, Sam William Bowman, IV

Принадлежит: Medallion Therapeutics Inc

A catheter including a tubular catheter body defining a distal portion, a distal end and a lumen that extends to the distal end, a radiopaque marker carried within the lumen, and a non-metal tip that is bonded to distal end of the catheter body.

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Номер записи: 74

17-04-2014 дата публикации

BALLOON ENCAPSULATED CATHETER TIP

Номер: US20140107573A1

Автор: Wiita Bruce E., Wiita Gregory D.

Принадлежит: Poiesis Medical, LLC

This invention is generally related to catheters for insertion into a body cavity, duct or vessel, and more particularly to a tip or plug for a catheter. The catheter tip is constructed and arranged to form a seal on the end portion of the catheter tube, while a sleeve secured or formed integrally to the tip cooperates with the catheter tube to form a first balloon that encapsulates the tip of the catheter and a second balloon that positions the catheter within the body cavity, duct or vessel. 1. A catheter assembly having an encapsulated catheter tip for encapsulating a distal end of the catheter thereby minimizing the risk of infection comprising:a catheter body having a distal end, a proximal end, and a plurality of lumens extending generally from said distal end to said proximal end, said plurality of lumens including at least one drainage lumen in fluid communication with a drainage port for providing fluid flow within said drainage lumen, and at least one control lumen, said control lumen being in fluid communication with a sleeve member for providing inflation of said sleeve thereby forming one or more inflatable areas;a catheter tip having a cap comprising a distal end and a proximal end, said tip constructed and arranged to cooperate with one of said plurality of lumens, said catheter tip having a sleeve member which contains a first end integrally formed to the said distal of said catheter tip and a second end secured to a plurality of positions along said catheter body, thereby forming a first balloon constructed and arranged to provide a barrier between said catheter tip and a body duct, tissue cavity or vessel, and a second balloon constructed and arranged to position said catheter within said body duct, tissue cavity or vessel;whereby inflation of said first balloon results in encapsulation of said distal end of said catheter thereby preventing damage to said body duct, tissue cavity or vessel, and inflation of said second balloon provides securing of ...

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Номер записи: 75

17-04-2014 дата публикации

Nozzle For The Supply of Biological Material, In Particular Cells, Medical Device With Such A Nozzle, Use Of A Nozzle, Method For Mixing Fluids And Apparatus

Номер: US20140107620A1

Автор: Enderle Markus, Fech Andreas, Fischer Klaus, Szyrach Mara

Принадлежит: ERBE ELEKTROMEDIZIN GMBH

A nozzle for the supply of biological material, in particular tissue cells, having a mixing chamber () which is delimited by a proximal end surface () and a distal end surface () spaced apart from the proximal end surface (), at least one nozzle opening () which is formed in the distal end surface (), and at least two supply ducts () which discharge into the mixing chamber (). A first supply duct () is arranged in the proximal end surface () and discharges into the mixing chamber () coaxially to the nozzle opening () and a second supply duct () has an inlet opening () which discharges into the mixing chamber () laterally, in particular tangentially at the distal end surface (). 1. Nozzle for the supply of biological material comprising:{'b': 11', '21', '22', '21, 'a mixing chamber () which is delimited by a proximal end surface () and a distal end surface () spaced apart from the proximal end surface (),'}{'b': 23', '22, 'at least one nozzle opening () which is formed in the distal end surface (),'}{'b': 30', '40', '50', '11, 'at least two supply ducts (, , ) which discharge into the mixing chamber (),'}{'b': 30', '21', '11', '23, 'a first supply duct () is arranged in the proximal end surface () and configured to discharge into the mixing chamber () coaxially to the nozzle opening (), and'}{'b': 40', '42', '11', '22, 'a second supply duct () including an inlet opening () which discharges into the mixing chamber () laterally and tangentially at the distal end surface ().'}211. Nozzle according to claim 1 , wherein the mixing chamber () has a length L which is at most 500 μm.34211. Nozzle according to claim 1 , wherein the lateral inlet opening () has a depth T which corresponds to length L of the mixing chamber ().4221140. Nozzle according to claim 1 , wherein the distal end surface () of the mixing chamber () is arranged perpendicular to a longitudinal axis of the second supply duct ().54211. Nozzle according to claim 1 , wherein the lateral inlet opening () has a ...

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Номер записи: 76

22-01-2015 дата публикации

SENSOR CATHETER HAVING REDUCED CROSS-TALK WIRING ARRANGEMENTS

Номер: US20150025416A1

Автор: DAVIES Stephen Charles, Litzza Gerald L., Williams Gregory Kent

Принадлежит:

Improved wiring arrangements for sensor catheters are provided to reduce wire-to-wire cross-talk wherein wires connecting the sensor of the sensor catheter to a processing unit are divided into a plurality of wire bundles contained within respective sheaths, with the wires in wire bundle twisted together reduce electromagnetic signal interference among the individual wires, or between wire bundles. 1an elongate body having proximal and distal ends;a sensor assembly disposed at the distal end of the elongate body; anda plurality of wires extending from the proximal end of the catheter to the distal end of the catheter, the plurality of wires coupled to the sensor assembly,wherein the plurality of wires are divided into at least first and second wire bundles, each of the wires in at least the first and second wire bundles arranged in a non-linear configuration such that the wires in at least the first and second wire bundles are not arranged side by side in order to reduce electromagnetic interference between the wires, andwherein the plurality of wires carry control signals transmitted to the sensor assembly and sensor signals transmitted from the sensor assembly; andwherein at least the first and second wire bundles extend in a non-linear configuration along the elongate body from the sensor assembly toward the proximal end.. A medical sensing device, comprising: This application is a continuation of U.S. patent application Ser. No. 13/431,332 filed on Mar. 27, 2012, now U.S. Pat. No. 8,795,203, which is a continuation of U.S. patent application Ser. No. 10/668,451, filed on Sep. 22, 2003, now U.S. Pat. No. 8,162,856, which claims the benefit of U.S. provisional patent application Ser. No. 60/413,267, filed Sep. 23, 2002, each of which is hereby incorporated by reference in its entirety.This application relates to medical devices such as catheters that have sensors at their distal tips to which electrical wiring is connected.Sensor catheters are used to gather ...

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Номер записи: 77

22-01-2015 дата публикации

Composition and Method for the Treatment or Prevention of Spinal Disorders

Номер: US20150025501A1

Автор: Ashish Diwan, Divya Diwan

Принадлежит: Individual

The present invention provides compositions of matter suitable for the prevention of and/or treatment of a spinal disorder and/or spinal pain, e.g., caused by and/or associated with intervertebral disc (IVD) degeneration, and methods of treatment of a spinal disorder and/or spinal pain. For example, the compositions of the present invention comprise a modulator of growth differentiation factor (GDF)-6 signaling sufficient to reduce or prevent or delay IVD degeneration and/or to enhance or induce IVD regeneration. The present invention also provides medical devices comprising such compositions, and methods of treatment making use of such compositions.

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Номер записи: 78

22-01-2015 дата публикации

Method for manufacturing of urinary catheters

Номер: US20150025508A1

Автор: Erik ROLSTED

Принадлежит: Rolsted Mould System ApS

A method for manufacturing an elongated element ( 200 ) is disclosed. The method comprises arranging a molding cavity ( 101 ), defined by a mold ( 103 ) and a mold insert ( 104 ), said mold insert ( 104 ) comprising a mold core ( 105 ). A liquid material is then injected into a proximal end ( 102 ) of the molding cavity ( 101 ), and the material is solidified, such that the elongated element ( 200 ) is formed. The elongated element ( 200 ) and mold insert ( 104 ) are removed from said mold ( 103 ), and the elongated element ( 200 ) is removed from said mold insert ( 104 ), wherein said removal of said elongated element ( 200 ) from said mold insert ( 104 ) comprises injecting a fluid in the interface between the elongated element ( 200 ) and the mold core ( 105 ). A mold assembly for the manufacture thereof is also provided.

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Номер записи: 79

28-01-2021 дата публикации

CATHETER DESIGN FOR USE IN TREATING PLEURAL DISEASES

Номер: US20210022761A1

Автор: Krueger John A., Looper Anthony, Schmitt Jeffrey

Принадлежит:

A catheter for use in treating pleural diseases, such as pleural effusions and pneumothorax, includes a tip portion that is configured to irritate the pleura when the catheter is inserted in the pleural cavity, thereby initiating mechanical pleurodesis. The tip portion has a substantially rough configuration and may include one or more protrusions that contact the pleura when the catheter is in use, thereby irritating the layers. This irritation causes the creation of fibrous adhesions between the parietal and visceral layers that close off the pleural cavity and prevent further fluid and/or air accumulations that occur as a result of pleural diseases. 1. A method of removing fluid and performing mechanical pleurodesis comprising:inserting a catheter into a patient's pleural cavity, the catheter comprising a lumen and an outer wall at least partially surrounding the lumen with an external surface extending from a proximal end of the catheter to an opening of the lumen at a distal most tip of the catheter, wherein a distal end portion of the external surface of the catheter comprises a plurality of protrusions thereon;using the lumen of the catheter to remove pleural fluid from the patients pleural cavity; andperforming mechanical pleurodesis by irritating tissue of the pleural cavity to promote the creation of fibrous adhesions between visceral layers of the pleural cavity, wherein the mechanical pleurodesis is performed by moving the distal end portion of the catheter within the pleural cavity to cause contact between the plurality of protrusions and tissue of the pleural cavity.2. The method of claim 1 , wherein the irritation caused by the plurality of protrusions at the distal end portion causes the creation of fibrous adhesions between a parietal and a visceral layer of the patient's pleura claim 1 ,3. The method of claim 1 , wherein the removed pleural fluid is collected in a drainage container.4. The method of claim 1 , wherein the catheter is formed of a ...

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Номер записи: 80

23-01-2020 дата публикации

ASPIRATION CATHETER SYSTEMS AND METHODS OF USE

Номер: US20200023160A1

Автор: Chou Tony M., Shinsky Vera, Wilson Scott D.

Принадлежит:

Described are methods, systems, and devices for facilitation of intraluminal medical procedures within the neurovasculature including catheters and catheter advancement elements. 1. A coaxial catheter system , the system comprising: a distal, catheter portion having a lumen and a distal end having an opening from the lumen, the lumen having an inner diameter at the distal end of at least about 0.052″; and', 'a proximal extension coupled to and extending proximally from the distal, catheter portion, the proximal extension being less flexible than the distal, catheter portion; and, 'a catheter comprising a tubular portion having an inner diameter that is at least about 0.014″ up to about 0.024″, an outer diameter, wherein the outer diameter has at least one snug point, wherein a difference between the inner diameter of the distal, catheter portion and the outer diameter of the tubular portion at such snug point is no more than about 0.010″;', 'a proximal extension coupled to and extending proximally from the tubular portion, the proximal extension being less flexible than the tubular portion; and', 'a tip portion located distal to the at least one snug point of the tubular portion, wherein the tip portion has a length and tapers along at least a portion of the length of the tip portion,, 'a catheter advancement element comprisingwherein the coaxial catheter system has an advancement configuration characterized by:a) the catheter advancement element positioned coaxially within the lumen of the distal catheter portion, wherein the at least one snug point of the tubular portion is substantially aligned with the distal end of the distal catheter portion, and a distal point of the at least three points located a distance proximal from the distal-most end of the catheter advancement element, the distal point having a first bending force that is no greater than about 0.05 Newtons;', 'an intermediate point of the at least three points located a distance proximal from the ...

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Номер записи: 81

23-01-2020 дата публикации

CATHETER ASSEMBLY

Номер: US20200023167A1

Автор: ISHIDA Masahiro, ZUSHI Yasunobu

Принадлежит:

A catheter assembly includes a catheter, a catheter hub, an inner needle, and an inner needle hub. The catheter assembly is disposed in a hollow portion axially extending in the interior of the inner needle, and includes a blunt needle having a distal end portion blunter than a needle tip and a movement mechanism for moving the blunt needle. The movement mechanism is configured separately from the catheter hub and causes the distal end of the blunt needle to protrude beyond the needle tip along with the movement of the catheter. 1. A catheter assembly , comprising:a catheter;a catheter hub fixedly holding the catheter;an inner needle having a needle tip and releasably inserted into the catheter;an inner needle hub fixedly holding the inner needle;a rod member disposed in a hollow portion axially extending in the inner needle and having a distal end portion blunter than the needle tip; anda movement mechanism that moves the rod member inside the inner needle, wherein the movement mechanism is formed separately from the catheter hub, and causes the distal end of the rod member to protrude beyond the needle tip along with the movement of the catheter.2. The catheter assembly of claim 1 , wherein the movement mechanism comprises:a rod member hub for applying a moving force to the rod member, andan engagement member for engaging the catheter hub and the rod member hub.3. The catheter assembly of claim 2 , whereinthe engagement member is an operation member which is detachably attached to the catheter hub, is able to operate movement of the catheter hub, and moves the rod member along with the movement of the catheter hub.4. The catheter assembly of claim 3 , whereinthe rod member hub is movable relative to the inner needle, and has an engaging portion at a predetermined position,the operation member has a portion to be engaged which is engaged with the engaging portion, andthe engaging portion and the portion to be engaged are maintained in engagement in a pre-puncture ...

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Номер записи: 82

23-01-2020 дата публикации

Balloon catheters and methods of manufacture and use

Номер: US20200023170A1

Автор: Greg Halstead, Michael P. Allen

Принадлежит: Embol X Inc

Balloon catheters that includes inner and outer elongate shafts, each of which is secured relative to an end of an inflatable member. The inner and outer elongate shafts are secured relative to one another at one more discrete connection locations. The balloon bonding locations are disposed radially inward relative to an outer dimension of the outer elongate shaft.

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Номер записи: 83

28-01-2021 дата публикации

Catheter With Embedded Core Wires

Номер: US20210023339A1

Автор: Hayes John Michael

Принадлежит:

A kink-resistance catheter has at least a first pair of core wires residing in the catheter body on opposed side of a catheter lumen. The core wires have relatively stiff proximal ends but taper toward their distal ends. The tapered construction provides the core wires with a degree of distal flexibility that helps the catheter advance along a vasculature to a site of interest without kinking. Moreover, the core wires greatly improve the torsional rigidity of the catheter so that rotation of the catheter's proximal end translates into a substantially equivalent rotation at the distal end. If desired, shaping ribbons are provided in the catheter body adjacent to the distal ends of the core wires. The shaping ribbons can be pre-bent before a surgical procedure to help the physician advance the catheter along the vasculature. Finally, the core wires provide the ability to push the catheter through the vasculature without the need for the catheter to go over a guidewire already in-situ in the vasculature. 1. A catheter , comprising:a) a catheter body comprising an outer wall extending longitudinally from a catheter proximal end to a catheter distal end;b) a first catheter lumen extending through the catheter body to the catheter proximal and distal ends; andc) at least a first core wire residing in the catheter body, wherein the first core wire has a first core wire proximal end disposed adjacent to but spaced from the catheter proximal end and a first core wire distal end disposed adjacent to but spaced from the catheter distal end.2. The catheter of claim 1 , wherein the first core wire has at least one first tapered portion intermediate a first proximal cylindrical portion and a first distal cylindrical portion.3. The catheter of claim 1 , wherein the first core wire has at least one first tapered portion intermediate a first proximal cylindrical portion and a first distal ribbon-shaped portion.4. The catheter of claim 3 , wherein a first shaping ribbon resides in ...

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Номер записи: 84

28-01-2021 дата публикации

System and Method of Utilizing ECG Signal for Static Catheter Tip Confirmation

Номер: US20210023341A1

Автор: Decheek Anthony D., Misener Anthony K.

Принадлежит:

Systems and methods for confirming the tip location of a static endovascular device are disclosed. The system can include an ivECG acquisition module for receiving ECG data from an implanted endovascular device and a notification module. The system can calculate P×I and distance parameters to determine the location of the tip of the implanted endovascular device relative to a predetermined location such as the cavoatrial junction. The system can use chaos theory and the concept of self-organized criticality (SOC) to determine parameters where P-waves are absent or atypical. The notification module can include one or more of an audio signal, a video signal, and a tactile signal. Also disclosed are systems and methods of establishing an electrical pathway within a previously positioned, endovascular device, including saline columns and electrically conductive guidewires. 1. A tip confirmation system for confirming a location of a tip of a static endovascular device , the system comprising:an ivECG acquisition module;a multiscale complexity analysis module;a notification module, including one or more of an audio feature, a video feature, and a tactile feature;an electrical pathway extending from a distal tip of the static endovascular device to a proximal end thereof, andan adaptor designed to couple the electrical pathway with the ivECG acquisition module,wherein the multiscale complexity analysis module uses ivECG signals, provided by the ivECG acquisition module and the electrical pathway, to provide a P×I (proximity index), the notification module indicating a location of the distal tip of the static endovascular device relative to a predetermined target location.2. The system of claim 1 , wherein the electrical pathway includes an embedded electrode extending from a proximal hub to a distal tip of the static endovascular device.3. The system of claim 1 , wherein the electrical pathway includes an electrically conductive device disposed within a lumen of the static ...

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Номер записи: 85

28-01-2021 дата публикации

CANNULA WITH LIGHT-EMITTING OPTICAL FIBER

Номер: US20210023345A1

Автор: Burkholz Jonathan Karl, Isaacson S. Ray, Sonderegger Ralph L.

Принадлежит:

A catheter device to visually identify a blood vessel may include a cannula. The cannula may include a distal tip, an elongated tubular shaft, and an inner lumen formed by the elongated tubular shaft. The cannula may also include an optical fiber, which may be disposed within the inner lumen of the cannula. The optical fiber may include a distal end and a proximal end. The optical fiber may be configured to emit light from the distal end. 119-. (canceled)20. A method of assisting introduction of a catheter into a blood vessel of a patient , comprising:inserting a cannula into the blood vessel of the patient, wherein the cannula comprises a distal tip, an elongated tubular shaft, and an inner lumen formed by the elongated tubular shaft; andadvancing an optical fiber beyond the distal tip of the cannula, wherein at least a portion of the optical fiber is disposed within the inner lumen of the cannula, wherein the optical fiber comprises a distal end and a proximal end, wherein the optical fiber is configured to emit light from one or more notch features, wherein each of the notch features defines a discontinuity in the optical fiber.21. The method of claim 20 , further comprising activating a light source coupled to the optical fiber to produce the light.22. The method of claim 21 , wherein the light does not include red light having a light emission peak in wavelengths of 640 to 680 nanometers.23. The method of claim 21 , wherein the light is red light having a light emission peak in wavelengths of 640 to 680 nanometers.24. The method of claim 21 , wherein activating the light source comprises illuminating the optical fiber.25. The method of claim 24 , wherein illuminating the optical fiber comprises emitting the light from the one or more notch features claim 24 , wherein the one or more notch features is positioned proximate to the distal tip of the cannula.26. The method of claim 22 , further comprising receiving a visual cue from the optical fiber when the distal ...

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Номер записи: 86

28-01-2021 дата публикации

Ureteral stent with anti-migration features

Номер: US20210023350A1

Автор: Antonio E. Prats, Kurt G. Shelton

Принадлежит: Gyrus ACMI Inc

A ureteral stent including a tubular body and a first anti-migration feature including one or more projections extending outward from the tubular body. The first anti-migration feature may be configured to be placed entirely within a patient's ureter. The first anti-migration feature may be provided entirely at a proximal bladder section of the tubular body and be configured to not enter the patient's bladder.

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Номер записи: 87

02-02-2017 дата публикации

Contraceptive devices and methods

Номер: US20170027740A1

Автор: Betsy Swann, Christopher Stout, Vidya Gopal

Принадлежит: Bayer HealthCare LLC

Contraceptive devices that provide substantially immediate and permanent sterilization are described herein. Systems and methods for transcervically delivering the contraceptive devices are also described herein. The contraceptive device may include an expandable implant. The implant includes hydrogel to provide substantially immediate sterilization, and tissue in-growth fibers to provide permanent sterilization. As an alternative or in combination to hydrogel, the implant may include copper or cupric ions to provide substantially immediate sterilization. The implant may also include hydrogel to improve trackability of the implant through an ovarian pathway.

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Номер записи: 88

02-02-2017 дата публикации

GUIDE CATHETER EXTENSION DEVICE AND METHODS OF USE FOR CARDIOLOGY PROCEDURES

Номер: US20170028170A1

Автор: Ho Andrew

Принадлежит:

A guide catheter extension device for use with a standard guide catheter. The guide catheter extension device is made up of a flexible, elongate extension catheter having a tapered tip portion at a distal end, an opening at a proximal end, and a body portion extending between the two. The extension catheter has a longitudinal slit extending from the distal tip portion toward the proximal opening. Methods of using the guide catheter extension device to aid in performing interventional cardiology procedures. 1. A guide catheter extension device for use with a standard guide catheter , the device comprising:a flexible elongate extension catheter having a tapered tip portion at a distal end, an opening at a proximal end, and a body portion extending between the distal tip portion and the proximal opening, wherein the extension catheter defines a lumen extending from the tip portion to the proximal opening;a longitudinal slit extending from the distal tip portion toward the proximal opening; anda push rod attached to the extension catheter at the proximal opening.2. The device of claim 1 , wherein the extension catheter is formed from a resilient material.3. The device of claim 2 , wherein the resilient material is selected from the group consisting of metal claim 2 , plastic claim 2 , and composite structures.4. The device of claim 3 , wherein the plastic is selected from the group consisting of polyolefin claim 3 , polyethylene claim 3 , and polyurethane.5. The device of claim 2 , wherein the extension catheter has a first resting diameter claim 2 , and is capable of deforming outward when under internal pressure by the longitudinal slit opening to define a second claim 2 , larger diameter.6. The device of claim 5 , wherein the extension catheter is configured to return to the first resting diameter when the internal pressure is removed.7. The device of claim 1 , wherein the longitudinal slit extends the entire length of the extension catheter.8. The device of claim 1 ...

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Номер записи: 89

01-02-2018 дата публикации

DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING FIELD OF VIEW IN IMAGING SYSTEMS

Номер: US20180028152A1

Автор: Begin Elizabeth, Ho Dietrich, Levy Oren, Sproul Jason

Принадлежит:

Devices, systems, and methods for controlling an intravascular imaging device are provided. For example, in one embodiment a method includes communicating a control signal to an actuator of the intravascular imaging device to cause oscillation of an imaging element of the intravascular imaging device, wherein the intravascular imaging device further includes an acoustic marker; receiving imaging data from the imaging element of the intravascular imaging device; identifying the acoustic marker in the imaging data by determining a correlation between the imaging data and a template representative of the acoustic marker; adjusting an aspect of the control signal based on identifying the acoustic marker; and communicating the adjusted control signal to the actuator of the intravascular imaging device. 1. A method of controlling an intravascular imaging device , the method comprising:communicating a control signal to an actuator of the intravascular imaging device to cause oscillation of an imaging element of the intravascular imaging device, wherein the intravascular imaging device further includes an acoustic marker;receiving imaging data from the imaging element of the intravascular imaging device;identifying the acoustic marker in the imaging data by determining a correlation between the imaging data and a template representative of the acoustic marker;adjusting an aspect of the control signal based on identifying the acoustic marker; andcommunicating the adjusted control signal to the actuator of the intravascular imaging device.2. The method of claim 1 , wherein identifying the acoustic marker includes identifying the acoustic marker in a series of frames of the imaging data.3. The method of claim 2 , wherein identifying the acoustic marker includes determining a maximum correlation between the imaging data and the template in the series of frames of the imaging data.4. The method of claim 1 , wherein adjusting an aspect of the control signal includes adjusting at ...

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Номер записи: 90

31-01-2019 дата публикации

SPRAY APPLICATOR

Номер: US20190029660A1

Автор: Fortier Jason, Hull Les

Принадлежит:

A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip. 17-. (canceled)8. A spray applicator comprising:a body defining a first lumen configured for fluid communication with a first source of component, a second lumen configured for fluid communication with a second source of component, and a third lumen configured for fluid communication with a source of pressurized air;a tip assembly operably connected to the body, the tip assembly defining an opening and a mixing chamber between a distal end of the body and the opening of the tip assembly; andan insert member received in the mixing chamber, a distal end of the insert member defining a recess and at least one radially extending slot, the recess and the at least one radially extending slot configured to mix first and second components prior to a combination of the first and second components exiting the opening in the tip assembly.9. The spray assembly of claim 8 , further including first and second sources of component.10. The spray assembly of claim 9 , wherein the first source of component includes a first component and the second source of component includes a second component.11. The spray assembly of claim 8 , wherein the distal end of the insert member defines a pair of slots.12. The spray assembly of claim 8 , wherein a proximal end of the insert member defines at least one slot.13. The spray ...

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Номер записи: 91

31-01-2019 дата публикации

Simultaneous Rotating Separator, Irrigator Microcatheter for Thrombectomy and Method of Use

Номер: US20190029791A1

Автор: Daniel Ezra Walzman

Принадлежит: Daniel Ezra Walzman

The described invention provides several aspects designed to help mechanically break up a clot inside vessels and/or remove a clot via aspiration simultaneously, and a method of using same. According to some embodiments, the devices are adapted to irrigate a blood vessel during thrombectomy; to macerate an obstruction during thrombectomy, to block blood flow in a blood vessel during aspiration of a thrombus; or to capture and remove distal emboli. With the described invention, when used to ameliorate arterial clots, irrigation and aspiration are performed simultaneously in conjunction with a balloon or occlusive catheter to reverse flow of the vessel. With the described invention, when used to ameliorate venous clots and most arteriovenous dialysis grafts, a filter-tipped aspirator is used downstream from the clot to capture and remove dislocated emboli. An optional embodiment protects the three Great Vessels of the heart, unlike the prior art.

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Номер записи: 92

31-01-2019 дата публикации

PERCUTANEOUS CATHETER AND METHOD OF MANUFACTURING TUBE FOR PERCUTANEOUS CATHETER

Номер: US20190030280A1

Автор: Yokoyama Kenji

Принадлежит:

A percutaneous catheter for an extracorporeal blood circulator has a tubular reinforcement body comprised of a plurality of wires braided in a reticulated manner. The braided wires include first wires wound in a first helical direction and second wires wound in a second helical direction crossing the first wires to define regular gap portions. A portion of the first and second wires are deviated from the helical directions to enlarge a selected gap portion into a first opening portion. A resin layer coats the reinforcement body and includes a second opening portion coincident with the first opening portion to form a side hole for fluid communication between an interior lumen and an exterior of the catheter. A continuous reinforcement is provided between longitudinal ends of the tubular reinforcement body including a longitudinal region of the side hole. 1. A percutaneous catheter including a lumen in which blood circulates , the percutaneous catheter comprising:a tubular reinforcement body comprised of a plurality of wires braided in a reticulated manner including first wires wound in a first helical direction and second wires wound in a second helical direction crossing the first wires to define regular gap portions, wherein a portion of the first and second wires are deviated from the helical directions to enlarge a selected gap portion into a first opening portion; anda resin layer coating the reinforcement body and including a second opening portion coincident with the first opening portion;whereby a side hole for fluid communication between the lumen and an exterior of the catheter is formed by the first opening portion and the second opening portion overlapping each other, and whereby a continuous reinforcement is provided between longitudinal ends of the tubular reinforcement body including a longitudinal region of the side hole.2. The percutaneous catheter according to claim 1 , wherein the resin layer is comprised of a first tube at a distal end of the ...

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Номер записи: 93

31-01-2019 дата публикации

PROGRESSIVE FLEXIBILITY CATHETER SUPPORT FRAME

Номер: US20190030283A2

Автор: Cottone Robert J.

Принадлежит:

Cut-pattern designs creating a frame structure from a solid tube, which may be used as a portion of medical device, such as a catheter. The tube includes a plurality of units of cutout segments which are distributed in band around a circumference of the tube. A tube can have multiple different zones, each having units with varying cutout segments. The cutout segments can have varying cutout surface area allowing the flexibility of the tube to be modified at any point along the tube by altering the cutout surface area with zones having greater cutout surface areas as compared to another zone are more flexible. The tube can be incorporated into a catheter. 123-. (canceled)24. A guide catheter extension , comprising:a tube having a proximal end, a distal end, an inner diameter, an outer diameter, a longitudinal axis, and at least one spiral cut section and a transition section positioned at the proximal end of the tube, wherein the transition section is a flare or a flange and defines an opening oriented substantially perpendicular to the longitudinal axis of the tube; anda push rod having a proximal and distal end, wherein the distal end of the push rod is attached at a junction to the proximal end of the tube.25. The guide catheter extension of claim 25 , wherein the spiral cut section comprises a discontinuous spiral cut.26. The guide catheter extension of claim 24 , wherein the spiral cut section comprises a continuous cut.27. The guide catheter extension of claim 24 , wherein the transition section is a flare.28. The guide catheter extension of claim 24 , wherein the transition section is a flange.29. The guide catheter extension of claim 24 , wherein the outer diameter of the tube tapers from the proximal end to the distal end of the tube.30. The guide catheter extension of claim 24 , wherein the push rod is a tube.31. The guide extension catheter of claim 29 , wherein the distal end of the push rod has a flat profile.32. The guide catheter extension of claim 31 ...

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Номер записи: 94

30-01-2020 дата публикации

CATHETER APPARATUS AND METHODS FOR TREATING VASCULATURES

Номер: US20200030579A1

Автор: Taber Mark

Принадлежит:

A catheter apparatus may have a flexible shaft, guidewire lumens passing through the shaft, and a positioning device for positioning the guidewires relative to an external lumen. The positioning device may be an expansible scaffold covered with a retractable sheath. The positioning device may also be one or more balloons that are inflated through an inflation port in the shaft. The catheter apparatus may be operated by inserting a guide catheter into a vasculature with a chronic total occlusion, inserting the catheter apparatus into the guide catheter, and advancing the guidewires through the guidewire lumens and into contact with a chronic total occlusion. The positioning device may be activated before and/or between attempts to pass the guidewires through the chronic total occlusion to interrogate various parts of the chronic total occlusion. 1. A catheter apparatus comprising:a flexible shaft,guidewire lumens passing longitudinally through the shaft, anda positioning means for positioning distal ends of the guidewire lumens relative to an inner wall of an external lumen.2. The apparatus of claim 1 , further comprising a retractable sheath surrounding the guidewire lumens.3. The apparatus of claim 1 , wherein the positioning means is an expansible scaffold.4. The apparatus of claim 3 , wherein the guidewire lumens are coupled to the expansible scaffold.5. The apparatus of claim 1 , wherein the positioning means is one or more sponges.6. The apparatus of claim 5 , wherein the guidewire lumens are embedded in the one or more sponges.7. The apparatus of claim 1 , wherein the positioning means is a shape-memory means integrated with the guidewire lumens.8. The apparatus of claim 1 , wherein the positioning means is a deflectable tip.9. The apparatus of claim 1 , wherein the positioning means is one or more balloons.10. The apparatus of claim 9 , wherein the one or more balloons are inflated through an inflation port running longitudinally in the shaft.11. The ...

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Номер записи: 95

04-02-2021 дата публикации

CATHETERS FOR EMERGENCY ENDOVASCULAR SURGERY AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS

Номер: US20210030423A1

Автор: Starnes Benjamin W.

Принадлежит:

Catheter systems configured for emergency blood-vessel occlusion and associated devices, systems, and methods are disclosed herein. A catheter system configured in accordance with a particular embodiment includes a catheter, a sheath, and an extracorporeal proximity sensor. The catheter includes an elongated body having a tip, a sealing portion, and a main shaft proximal to the sealing portion. The tip is configured to dilate a blood vessel ahead of the distal end portion of the sheath as the catheter and the sheath are advanced together through the blood vessel. The distal end portion of the sheath is configured to fit snugly around the sealing portion. The catheter further includes a balloon and a proximity-sensor target less than about 10 centimeters from the balloon. The proximity sensor is configured to receive a signal from the proximity-sensor target to aid in positioning the balloon without fluoroscopic guidance. 1. A method for occluding an injured blood vessel , the method comprising:simultaneously advancing a catheter and a sheath along a catheterization path while a tip of the catheter dilates one or more blood vessels along the catheterization path;advancing the catheter and/or retracting the sheath to cause a balloon of the catheter to extend beyond a distal end portion of the sheath after simultaneously advancing the catheter and the sheath along the catheterization path; andinflating the balloon to at least partially occlude the injured blood vessel.2. The method of claim 1 , further comprising selecting an axial length of the catheter to be from about 100% to about 150% of the length of the catheterization path.3. The method of claim 1 , further comprising monitoring blood pressure within the injured blood vessel via an annular space between the catheter and the sheath before inflating the balloon and after advancing the catheter and/or retracting the sheath to cause the balloon of the catheter to extend beyond the distal end portion of the sheath.4 ...

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Номер записи: 96

04-02-2021 дата публикации

CATHETER TIP ASSEMBLED WITH A SPRING

Номер: US20210031003A1

Автор: CHAPPEL Shlomit

Принадлежит:

A catheter tip that provides longitudinal flexibility, pushability and radial rigidity thereby improving deliverability is provided. The catheter tip includes a spring-like element to provide longitudinal flexibility and pushability to the catheter tip. The spring-like element may also provide radial support to the distal edge of the catheter tip. Alternatively, a radially rigid distal end may also be included distal of the spring-like element. The apparatus may be used with any interventional catheter system, but is particularly suitable for use with balloon-expandable stent systems and balloon-angioplasty systems, where flexibility of the catheter tip and minimal flaring of the distal edge of the catheter tip is desirable. 1. A flexible and pushable catheter tip having a proximal end and a distal end , comprising:a longitudinally flexible tube;a spring-like element located inside of said longitudinally flexible tube, said spring-like element and said longitudinally flexible tube extending along a common longitudinal axis of the catheter tip; anda distal end portion located at the distal end of the catheter tip, the distal end portion extending distal of the spring-like element.2. A flexible and pushable catheter tip having a proximal end and a distal end , comprising:a longitudinally flexible tube; anda spring-like element located inside of said longitudinally flexible tube, said spring-like element and said longitudinally flexible tube extending along a common longitudinal axis of the catheter tip,wherein the spring-like element extends to a distal edge of the distal end of the catheter tip.3. The catheter tip of or , wherein said longitudinally flexible tube is a flexible polymer material.4. The catheter tip of claim 3 , wherein said spring-like element is embedded in the flexible polymer material.5. The catheter tip of claim 4 , wherein the flexible polymer material is selected from the group consisting of: block co-polymer claim 4 , polyether block amide (PEBA ...

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Номер записи: 97

09-02-2017 дата публикации

Molded Catheter Tip

Номер: US20170035989A1

Автор: Gilman Thomas H.

Принадлежит:

A catheter has extruded length of tubing and an injection molded tip that facilitates insertion of the catheter into the body. The catheter is fabricated by the steps of providing the tubing, for example, by extruding the tubing from a thermoplastic resin cutting the tubing to the desired length, inserting a plug into the tubing, inserting one end of the tubing into an injection mold cavity, creating and forming a tip in an injection molding step, and demolding the tubing with the formed tip. 1. A catheter , comprising:a length of tubing with an axial lumen defined therein, the lumen having an inside diameter, the tubing terminating at an end;a plug inserted in the lumen a distance sufficient to axially recess the plug from the end of the tubing, at least a portion of the plug having a maximum outside diameter at least as large as the inside diameter of the lumen; anda tip attached to an end of the tubing, the tip including a stubshaft that extends into the lumen and is joined to the plug at a plug-to-tip bond line.2. The catheter of further comprising a hydrophilic coating on the exterior surface of the tubing and tip.3. The catheter of wherein the tubing has an inner wall and an outer wall.4. The catheter of wherein the tubing has an inner wall and an outer wall and further comprising a hydrophilic coating on the exterior surface of the outer wall and tip.5. The catheter of wherein the plug has at least one tapered end.6. The catheter of wherein the tip has an apex at the free end thereof with a depression formed in the apex.7. (canceled)8. (canceled)9. A method of making a catheter claim 1 , comprising the steps of:a) providing tubing having an axial lumen defined therein, the lumen having an inside diameter;b) cutting the tubing to the desired catheter length;c) forming a plug, at least a portion of the plug having an outside diameter at least as large as the inside diameter of the lumen;d) pre-heating the plug;e) inserting the pre-heated plug into the lumen at ...

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Номер записи: 98

08-02-2018 дата публикации

Universal Catheter Tip and Methods for Use

Номер: US20180036156A1

Автор: Patrick W. KELLY

Принадлежит: SANFORD HEALTH

The present disclosure provides a catheter tip comprising a cavity extending between an expandable opening arranged at a first end of the catheter tip and a second end of the catheter tip, wherein the expandable opening is configured to increase in diameter from a first position to a second position in response to application of an external force to the second end of the catheter tip.

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Номер записи: 99

08-02-2018 дата публикации

CABLE AND MEDICAL HOLLOW TUBE

Номер: US20180036509A1

Автор: KASHIMURA Seiichi, Kishi Masamichi, Kudo Kimika, Watanabe Takanobu

Принадлежит:

A cable includes a silicone rubber coating including microparticles and cavities as an outermost coating. A medial hollow tube includes a silicone rubber coating including microparticles and cavities as an outermost coating or an innermost coating. The microparticles may be at least one kind of microparticle selected from silicone resin microparticle, silicone rubber microparticle and silica microparticle. The microparticles may have hardness higher than a hardness of silicone rubber constituting the silicone rubber coating. 1. A cable comprising:a silicone rubber coating including microparticles and cavities as an outermost coating.2. The cable according to claim 1 , wherein the microparticles comprise at least one kind of microparticle selected from silicone resin microparticle claim 1 , silicone rubber microparticle and silica microparticle.3. The cable according to claim 1 , wherein the microparticles comprise a hardness higher than a hardness of silicone rubber constituting the silicone rubber coating.4. The cable according to claim 1 , wherein an average particle size of the microparticles is not less than 3 μm and not more than 20 μm.5. The cable according to claim 1 , wherein a content of the microparticles in the silicone rubber coating is not less than 10 mass % and not more than 50 mass %.6. The cable according to claim 1 , wherein a maximum length of each of the cavities is not less than 1 μm and not more than 15 μm.7. The cable according to claim 1 , wherein a thickness of the silicone rubber coating is not less than 3 μm and not more than 50 μm.8. The cable according to claim 1 , wherein a surface of the silicone rubber coating comprises an irregularity.9. The cable according to claim 1 , further comprising a sheath on which the silicone rubber coating is coated claim 1 , the sheath comprising a compound including silicone rubber claim 1 , or chloroprene rubber.10. A medial hollow tube claim 1 , comprising:a silicone rubber coating including ...

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Номер записи: 100