Patent application number | Description | Published |
20090054824 | MULTI-LUMEN CATHETER ASSEMBLY - A multi-lumen catheter assembly for use in the extracorporeal treatment of a body fluid of a patient. The catheter assembly includes an elongated catheter body having a pair of lumens extending therethrough, and a septum separating the lumens. The catheter body has an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel to a treatment unit, and an infusion port in communication with a second lumen for return of treated fluid to the vessel. The infusion port is positioned distal of the aspiration port along a length of the catheter body. A flexible member is provided, wherein the flexible member has an end receivable in the first lumen and another end engaged with the catheter body distal of the aspiration port. The flexible member is structured and arranged to maintain a spacing between the aspiration port and a wall of the vessel. | 02-26-2009 |
20090054825 | WINGED CATHETER ASSEMBLY - A catheter assembly for use in extracorporeal treatment of a body fluid comprises a catheter body having a plurality of lumens extending therein. The catheter body has an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel to a treatment instrument, such as a dialyzer, and an infusion port in communication with a second lumen for return of treated fluid to the vessel. The catheter body includes a wing-like flap portion extending radially from the catheter body and defining the aspiration port. The flap portion is configured and arranged to space the aspiration port from a wall of the body vessel. | 02-26-2009 |
20100145285 | MULTI-LUMEN CATHETER CONFIGURATION - A multi-lumen catheter for use in the extracorporeal treatment of bodily fluids comprises a tubular catheter body having a first septum extending along its length, and having a withdrawal port and an infusion port. First and second withdrawal lumens are disposed on one side of the septum for transporting fluids withdrawn from a body vessel through the withdrawal port to an extracorporeal treatment unit, such as a dialyzer. An infusion lumen is disposed on the other side of the septum for infusion of treated fluids from the dialyzer through the infusion port into the vessel. The catheter body has a second septum extending along a length of the first septum. A proximal portion of the second septum separates the first and second withdrawal lumens, and a distal portion of the second septum extends distal to the withdrawal port. The distal portion tapers to a termination point along the length of the first septum length, for easing entry of the catheter into the vessel. | 06-10-2010 |
20110106054 | MULTI-LUMEN MEDICAL MIXING DEVICE - Disclosed is a multi-lumen mixing device that includes a first and second lumen constructed and arranged to separately pass a first and second reagent to a mixing chamber in the device, where the mixing chamber includes a mixing feature that mixes the first and second reagents. The disclosed multi-lumen mixing device may also include a port in fluid communication with the reaction mixing to permit the product of the combined reagents to be injected into a patent. | 05-05-2011 |
20110106071 | THERMOCHEMICAL ABLATION NEEDLE - There are disclosed embodiments of a system for thermochemical tissue ablation. An ablation needle in the form of a cannula with a tip and a plurality of tubes or lumens therethrough is provided, with the tip forming a hollow mixing chamber without external openings. Liquid reagents are passed through the lumens or tubes to the mixing chamber, where an exothermic reaction results, heating the tip. The heated tip is used for tissue ablation. The reaction product can be at least partially evacuated from the mixing chamber through a tube or lumen that empties into a container. | 05-05-2011 |
20110137225 | MULTI-LUMEN CATHETER - A catheter for use in the extracorporeal treatment of bodily fluids comprises a catheter body having a withdrawal port, an infusion port, and a plurality of lumens therein. The lumens comprise two or more withdrawal lumens that merge to form a single lumen proximal to withdrawal ports for transport of fluids withdrawn from a body vessel through the withdrawal port to an extracorporeal treatment unit, such as a dialyzer. The lumens also comprise an infusion lumen for infusion of treated fluids from the extracorporeal treatment unit through the infusion port into the vessel. The infusion lumen is disposed substantially at the center of the catheter body, while the withdrawal lumens extend longitudinally adjacent the infusion lumen along the catheter body length. A manifold may be provided at the proximal end of the catheter body to include the merger of the withdrawal lumens. | 06-09-2011 |
20120035532 | ASPIRATING AND INJECTING DEVICE - A medical device for aspirating and injecting fluid into a body cavity for use with first and second syringes is provided. The medical device includes an outer needle having an outer lumen formed therethrough. A distal end of the outer needle is configured to puncture tissue for insertion of the needle into the body cavity. An inner cannula is disposed within the outer lumen and has an inner lumen formed therethrough. A distal end of the inner cannula is disposed within the outer lumen. A hub has a first hub opening for fluidly connecting the first syringe to the outer lumen and a second hub opening for fluidly connecting the second syringe to the inner lumen. The inner cannula extends from at least one of the first and second hub openings to the distal end of the inner cannula. A method for treating a cyst is also provided. | 02-09-2012 |
20120180787 | PERCUTANEOUS DILATIONAL DEVICE HAVING BALLOON RETENTION MECHANISM - A device for dilating an opening through the tracheal wall of a patient includes a loading dilator. A balloon catheter is received in the lumen of the dilator such that the balloon extends distal to the loading dilator distal end. The balloon is configured to radially dilate a portion of the tracheal wall upon inflation. The balloon includes retention structure along its outer surface such that upon inflation, the retention structure inhibits dislodgement of the balloon when the balloon is positioned across the tracheal wall. The retention structure may comprise a pair of spaced elements radially projecting from the outer surface of the balloon, and spaced along the outer surface such that each of the elements is disposed at an opposite side of the tracheal wall when the balloon is positioned along the tracheal wall opening. | 07-19-2012 |
20120277586 | FEEDING TUBE HAVING ECHOGENIC TIP - A feeding tube for insertion into the jejunum of a patient. An elongated tubular member has a proximal portion, a distal portion, a lumen extending between the proximal and distal portions, and at least one aperture at the distal portion. The aperture is sized for passage of fluid material from the lumen into the jejunum. An inflatable balloon is disposed about a length of the elongated tubular member distal portion. The balloon is sized and configured such that upon inflation via water or saline inflation media, the balloon projects outwardly from the tubular member distal portion so as to be engageable with an interior wall of the body passageway. An echogenic material is disposed along the tubular member distal portion in conjunction with the balloon to provide an echogenic capability, so that the tubular member length is visible under ultrasound imaging. | 11-01-2012 |
20130025588 | LOADING DILATOR - A loading dilator for positioning a medical apparatus across an opening formed through a body wall of a patient includes a tubular body having a relatively rigid proximal portion and a distal portion. The distal portion includes a first relatively flexible segment and a second relatively rigid segment. The first segment is axially extendable from a first length that has a greater diameter than the second segment, to a second length having a diameter that does not substantially exceed the diameter of the second segment. A stylet is movable in a passageway of the tubular body between a first position wherein the first segment has the first length, and a second position wherein the stylet distal end exerts an axially displacing force on the second segment such that the first segment is movable from the first length to the second length. | 01-31-2013 |
20130085339 | SURGICAL RETRACTOR - The exemplary embodiments illustrated provide the discovery of apparatuses and methods of use of surgical retractors that solve the problems presently posed through use of the Trendelenberg position, present graspers, and present retractors. The embodiments are conformable into a sufficiently small configuration for introduction and positioning within a surgical site, and thereafter, are configurable into a larger, more rigid structure to sufficiently retain tissues and organs from the surgical site. | 04-04-2013 |
20130204087 | BODY CAVITY ACCESS TUBE ASSEMBLY AND METHOD OF USE - A body cavity access tube assembly includes a body cavity access tube having an external surface. A collapsible protective sleeve is positioned over the external surface and has a proximal end attached to the body cavity access tube and a distal end attached to a repositioning device The repositioning device is supported on the external surface of the body cavity access tube and has a released configuration wherein the repositioning device and the distal end of the collapsible protective sleeve are movable relative to a longitudinal axis of the body cavity access tube. The repositioning device also has an engaged configuration wherein the repositioning device and the distal end of the collapsible protective sleeve have a fixed position relative to the longitudinal axis of the body cavity access tube. | 08-08-2013 |
20130296773 | MULTI-LUMEN CATHETER - A catheter for use in the extracorporeal treatment of bodily fluids comprises a catheter body having a withdrawal port, an infusion port, and a plurality of lumens therein. The lumens comprise two or more withdrawal lumens that merge to form a single lumen proximal to withdrawal ports for transport of fluids withdrawn from a body vessel through the withdrawal port to an extracorporeal treatment unit, such as a dialyzer. The lumens also comprise an infusion lumen for infusion of treated fluids from the extracorporeal treatment unit through the infusion port into the vessel. The infusion lumen is disposed substantially at the center of the catheter body, while the withdrawal lumens extend longitudinally adjacent the infusion lumen along the catheter body length. A manifold may be provided at the proximal end of the catheter body to include the merger of the withdrawal lumens. | 11-07-2013 |
20140088608 | SPLITTABLE SHEATH - A sheath for retaining a prosthesis for use in repair of a damaged portion of a body vessel during an open surgical procedure. The prosthesis is of a type having a constricted condition for delivery to the damaged vessel portion and an expanded condition upon deployment from the sheath. The sheath includes a generally cylindrical body having a distal end portion, a proximal end portion, a passageway extending therethrough, and an elongated tab member at the proximal end portion. The tab member is positionable along the generally cylindrical body for initiating the splitting of the generally cylindrical body from the distal end portion of the sheath body toward the proximal end portion. | 03-27-2014 |
20140088677 | DELIVERY DEVICE AND SYSTEM FOR OPEN SURGICAL REPAIR - A device for delivering a prosthesis to a damaged body vessel includes first and second generally elongated members joined to each other along a length thereof. A distal end of each of the elongated members is insertable through an outer layer of skin to access the vessel. The distal ends are cooperatively maneuverable between a closed position for retaining the prosthesis during delivery to the vessel and an open position for releasing the prosthesis upon delivery. Each of the elongated members has a prosthesis retaining member disposed at a distal tip. The retaining members are configured for retaining the prosthesis in a constricted condition when the distal ends are in the closed condition for delivery of the prosthesis to the damaged vessel. | 03-27-2014 |