Having Valve Means (e.g., Ball Valve, Etc.) In Fluid Or Material Delivery Lumen Patents (Class 604/99.04)
  • Patent number: 10307574
    Abstract: Surgical drains and methods for using the same for draining a body cavity are provided. Aspects of the surgical drains of the invention include an elongated structure having a proximal end and a distal end and a lumen configured to drain a substance from the body cavity. The distal end is configured to be placed in a body cavity and change in diameter when present in the body cavity from a first diameter to a second diameter that is smaller than the first diameter, where the change in diameter is mediated by a diameter-varying element. Aspects of the invention further include sheaths configured to be disposed around surgical drains, such as surgical drains of the invention, and methods of using the surgical drains and sheaths. The devices and methods of the invention find use in a variety of applications.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: June 4, 2019
    Inventor: John R. Dein
  • Patent number: 10285865
    Abstract: A tympanostomy tube containing a polymeric material and a drug is described. The polymeric material may comprise a non-resorbable polymer and a water-soluble polymer. The drug may be released when the device is contacted by an aqueous liquid such as middle ear exudate during otitis media. The implant may contain sufficient drug to treat multiple episodes of otitis media or to catch subsequent episodes in their early stages as a prophylactic. The device may be hydrophilic and further may contain a surfactant. The implant may be porous. The implant may have enhanced surface area at places exposed to middle ear liquid and may have enlarged mass so as to contain an increased total amount of drug. Intentional reorientation of the patient's head may aid in moving drug-containing liquid around the middle ear cavity. Similar implants can be used in other mucosal cavities.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: May 14, 2019
    Assignee: Novaflux Inc.
    Inventors: Mohamed E. Labib, Stanislav S. Dukhin
  • Patent number: 9451889
    Abstract: A device for detecting rhinitis in a human subject includes an inflatable member that, in a first state, is configured to be introducible into the nasal cavity of the human subject; an expansion member configured to expand the inflatable member to an expanded, second state within the nasal cavity such that the inflatable member abuts against the tissue of the nasal cavity, and a pressure sensing member configured to measure a pressure exerted on the inflatable member by the tissue of the nasal cavity. A system for detecting rhinitis and methods for analyzing tissue response pressure, detecting rhinitis, predicting the efficacy of a planned rhinitis treatment and evaluating the efficacy of a previous rhinitis treatment are provided.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: September 27, 2016
    Assignee: CHORDATE MEDICAL AB
    Inventors: William Holm, Jan-Erik Juto, Fredrik Juto
  • Patent number: 9289297
    Abstract: A trans-femoral implant includes an anchor assembly and a balloon assembly configured to be separately delivered to an implant site within a heart. Once delivered, the anchor assembly and balloon assembly may be coupled to form an implant within the heart. The balloon anchor may include a fluid inflatable balloon that may be selectively filled via a balloon filling valve. The balloon assembly may further include a latching mechanism that may couple with a distal end of the anchor assembly, such that the length of the implant may be adjusted within the heart.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 22, 2016
    Assignee: CardioSolutions, Inc.
    Inventors: Jonathan E. Wilson, Glenn Kanner, Eric Conley, Amos Cruz
  • Patent number: 9289236
    Abstract: This mucosa separation apparatus includes a first insertion portion inserted to the interior of a subject, an expansion portion disposed on a head portion of the first insertion portion, and which expands by infusion of a fluid, a passage formed within the first insertion portion and connected to the expansion portion, for supplying the fluid to the expansion portion, and a curving portion which makes a head portion of an instrument inserted to the interior of the subject curve with respect to a part of the instrument which is closer to a base portion of the instrument than the head portion thereof.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: March 22, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Akihito Sadamasa, Yasuo Miyano, Yutaka Yanuma, Ichiro Takahashi, Kenji Shibaki, Tsutomu Nakamura, Tsuyoshi Nakagawa, Yasuhito Kura
  • Patent number: 9247950
    Abstract: The present invention provides minimally invasive devices and methods for accessing the sinuses and their surrounding structures for surgery and other treatments. The anterior ethmoid and maxillary sinuses are accessed and treated under minimal anesthesia with little or no postoperative limitation of activity or adverse symptoms. Direct visual verification of the sinuses and their natural ostia is utilized. Other paranasal sinuses may be treated by this method as well. The sinuses, in particular the maxillary and anterior ethmoid, are accessed via a direct anterior to posterior axis and the natural ostia of those sinuses is directly visualized for placement of a guide-free dilator, in the desired location within the natural ostia. That access to the maxillary ostium is accomplished by the anterior transuncinate “keyhole” approach in which a hole is punched in the uncinate process with the described devices according to the described methods.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: February 2, 2016
    Inventor: Leonard V. Covello
  • Patent number: 9198618
    Abstract: A device for detecting rhinitis in a human subject includes an inflatable member that, in a first state, is configured to be introducible into the nasal cavity of the human subject; an expansion member configured to expand the inflatable member to an expanded, second state within the nasal cavity such that the inflatable member abuts against the tissue of the nasal cavity, and a pressure sensing member configured to measure a pressure exerted on the inflatable member by the tissue of the nasal cavity. A system for detecting rhinitis and methods for analyzing tissue response pressure, detecting rhinitis, predicting the efficacy of a planned rhinitis treatment and evaluating the efficacy of a previous rhinitis treatment are provided.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: December 1, 2015
    Assignee: CHORDATE MEDICAL AB
    Inventors: Jan-Erik Juto, William Holm, Fredrik Juto
  • Patent number: 9089675
    Abstract: A guidewire system for insertion into a vascular system of a human or an animal so as to form a guide for guiding a catheter to a predetermined position. The system comprises a support catheter bounding a lumen for receiving at least a portion of the guidewire. The support catheter comprises a guidewire engagement structure for engaging the guidewire inside the lumen. The engagement structure in engaged condition causes the guidewire and the support catheter to be held mutually positioned at least in longitudinal direction thereof.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: July 28, 2015
    Assignee: IMDS R&D BV
    Inventor: Edwin Alexander Schulting
  • Patent number: 9072875
    Abstract: The present invention relates to a valve system for an inflatable portion of an indwelling medical device and more particularly to a valve system for fluid regulation of a catheter comprising a fluid inflatable portion that undergoes pressure changes within the body during use. The present invention also relates to methods of treatment using said valve system and indwelling medical devices comprising said valve systems.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 7, 2015
    Inventors: Yun Jin, Christopher Gregory
  • Patent number: 9005164
    Abstract: A valve configured for a lumen of medical device is provided. The valve includes a valve body that may be elastically deformed from a first configuration to a second configuration. The valve body includes a lumen having a closed configuration and an open configuration. The lumen may be actuated from the closed configuration to the open configuration by elastically deforming the valve body from the first configuration to the second configuration. The valve body may include a portion configured to form a seal with an interior surface of a lumen of a medical device.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: April 14, 2015
    Assignee: Cook Medical Technologies LLC
    Inventor: Eric R. Hennessy
  • Publication number: 20150065995
    Abstract: An intraluminal occluding catheter and method for preventing the loss of gas insufflation from a physiological lumen during a medical procedure is presented. The intraluminal occluding catheter is generally comprised of a catheter shaft having a flexible balloon affixed on a distal intraluminal end and a plurality of independent channels extending through the catheter shaft from the external proximal end to the distal intraluminal end. Once inserted into a physiological lumen such as the bowel, the intraluminal occluding catheter controls the loss of insufflation proximally thereby improving the safety and efficiency of TAMIS as well as allowing for more controlled gas exchange to clear smoke or vapor.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Applicant: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Jaime Eduardo Sanchez, Michael Eric Dolberg, Sowsan Heidar Rasheid
  • Patent number: 8945160
    Abstract: An apparatus is provided that is operable in different modes to perform various functions for treating a body lumen. The apparatus includes a shaft including proximal and distal ends, a lumen extending therebetween, and a balloon on the distal end. The apparatus includes a valve on the distal end that selectively opens or closes an outlet communicating with the lumen. With the valve open, fluid introduced into the lumen exits the outlet into a body lumen. With the valve closed, fluid introduced into the lumen expands the balloon. The valve may be biased to be closed, e.g., by a spring element disposed within the balloon. Optionally, the apparatus also includes an actuator for expanding a helical member within the balloon interior, e.g., either before or after expanding the balloon, such that the helical member and balloon may adopt an expanded helical shape for removing material within a body lumen.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 3, 2015
    Assignee: Hotspur Technologies, Inc.
    Inventors: Jeffrey A. Krolik, Gwendolyn Watanabe, Juan Domingo, Ray Betelia, James H. Dreher, Daryush Mirzaee, Lucas Fernandez
  • Patent number: 8926649
    Abstract: Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: January 6, 2015
    Assignee: Hotspur Technologies, Inc.
    Inventors: Jeffrey A. Krolik, Juan Domingo, Gwendolyn Watanabe, Ray Betelia, Lucas Fernandez
  • Publication number: 20140364834
    Abstract: A weeping balloon catheter includes a catheter having an elongate tubular body defining a medical device lumen and a liquid delivery lumen. A dilation balloon is disposed at a distal end of the elongate tubular body and is in fluid communication with the liquid delivery lumen. The dilation balloon includes a fluid communication channel through an outer wall of the dilation balloon. A flow restriction member is positioned along the fluid communication channel and has an open position permitting fluid communication along the fluid communication channel and a closed position blocking fluid communication along the fluid communication channel. A drug delivery path of the weeping balloon catheter is defined by the liquid delivery lumen and the dilation balloon.
    Type: Application
    Filed: March 27, 2014
    Publication date: December 11, 2014
    Applicant: Cook Medical Technologies LLC
    Inventor: Adam Brian McCullough
  • Publication number: 20140364835
    Abstract: A catheter assembly may be provided with a catheter body and an inflatable balloon. The catheter body has a proximal end, a distal end and a balloon inflation lumen. The inflatable balloon is attachable to the distal end of the catheter body. The balloon has an inner surface that at least partially defines an interior volume. The balloon is configured such that the interior volume can be in fluid communication with the inflation lumen of the catheter body to inflate the balloon. The balloon also has a proximal surface and a distal surface. The balloon is provided with a channel that extends through the balloon. The channel is configured to provide fluid communication between the proximal surface of the balloon and the distal surface of the balloon. Other catheter assemblies and methods of use are also disclosed.
    Type: Application
    Filed: May 8, 2014
    Publication date: December 11, 2014
    Inventors: Michael P. ALLEN, Robert A. BROMMER, Trevor M. HANNON, Robert de NEVE
  • Publication number: 20140350523
    Abstract: Embodiments of aortic occlusion devices are described herein that include radially expandable and collapsible proximal and distal end portions, such as annular self-expanding stents or frames, that are configured to radially expand within an aorta to secure the device within the aorta. The devices can also include a catheter extending axially between the distal end portion and the proximal end portion and a porous covering, or filter, positioned around the catheter and between the proximal end portion and the distal end portion and configured to filter emboli from blood flowing into upper-body arteries. The device can further include a one-way valve positioned at or adjacent to the distal end portion of the device and configured to restrict retrograde blood flow through the device toward the heart.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 27, 2014
    Inventors: Mark Dehdashtian, Teodoro S. Jimenez, Nathan Satter, Fabian D. Schroeder, Raffaele Mazzei, Jeff Kosmoski, Shaun Zamani, Adam Yestrepsky
  • Patent number: 8888739
    Abstract: The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port. A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: November 18, 2014
    Assignee: ConvaTec Technologies, Inc.
    Inventors: Christopher Gregory, Yun Jin, John B. Cline
  • Publication number: 20140296831
    Abstract: A device for transanally introducing an infusion into the rectum of a patient, the device comprising an inflatable balloon having a waisted shape, two terminal sections of larger radius and, a middle section of a reduced radius, and is placed transanally, the distally adjoining radially enlarged balloon section being placed intrarectally and the proximally adjoining radially enlarged balloon section extracorporeally, wherein both balloon ends taper to the dimension of a shaft supporting the balloon and are fixed on the surface of the shaft such that as the balloon is filled, the two enlarged balloon sections move toward each other in opposite axial directions, and wherein the two radially enlarged balloon sections are enlarged relative to the middle balloon section, such that when the balloon is placed transanally, during the filling process the two radially enlarged balloon sections draw down over the middle, balloon section and contact each other, and to a method for filling the catheter balloon.
    Type: Application
    Filed: August 20, 2012
    Publication date: October 2, 2014
    Inventor: Fred Göbel
  • Patent number: 8814899
    Abstract: A pressure relief apparatus for a balloon dilation catheter having a shaft with a dilation balloon attached to the distal end of the shaft and an inflation/deflation lumen for inflating and deflating the balloon includes a pressure relief port formed through the wall of the inflation/deflation lumen with a pressure relief member secured across the pressure relief port to form a fluid tight seal such that the fluid tight seal formed by the pressure relief member fails at a predetermined pressure to release pressure from the inflation/deflation lumen through the pressure relief port.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: August 26, 2014
    Assignee: FutureMatrix Interventional, Inc.
    Inventor: Lanny R. Pepper
  • Patent number: 8795227
    Abstract: This invention is new apparatuses and methods for treatments to be used from inside conduits or biological pathways. Examples of the biological pathways in which these new apparatuses and methods may be used include arteries, veins, and respiratory ways. Multi-purpose catheters (10) and catheter systems using structures including wires (2108), balloons (2150), and cords (2204) are described as well as methods to use such catheters and catheter systems. One of the embodiments is a configurable wire system which carries or transports radioactive sources. The wire is used in conjunction with a closed-end channel catheter.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 5, 2014
    Inventor: Jose Antonio R. Condado
  • Publication number: 20140180252
    Abstract: A feeding tube with an inflatable balloon component, a kit containing the feeding tubing, and a method for intubating a patient to deliver the feeding tube to a desired location for delivering nutrients and/or medication to the patient are described herein.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Inventor: Sabry Gabriel
  • Publication number: 20140180248
    Abstract: A tissue ablation device comprising a balloon catheter, or other expandable element, wherein said expandable element is comprised of a semipermeable membrane. The balloon membrane is expanded by an osmotically active solution to contact a vascular endothelium, or other desired tissue, whereupon the resultant osmotic gradient affects a water flux from the vascular endothelium, or other desired tissue, across the semipermeable membrane and towards the osmotically active solution.
    Type: Application
    Filed: December 23, 2012
    Publication date: June 26, 2014
    Inventor: Erez Salik
  • Patent number: 8758294
    Abstract: One embodiment provides a method implemented by a powered inflation device to prepare a balloon catheter for use during a medical procedure. In this embodiment, the method includes drawing an amount of medical fluid from a fluid reservoir into the inflation device during a first motorized operation of the inflation device, removing an amount of air from the balloon catheter during a second motorized operation of the inflation device, and injecting the amount of medical fluid from the inflation device into the balloon catheter during a third motorized operation of the inflation device to inflate a balloon located at a distal end of the balloon catheter. The powered inflation device may be a stand-alone device in one embodiment. In one embodiment, the powered inflation device is coupled to an angiographic injector system. When it is coupled to an angiographic injector system, the balloon inflation device and the injector system may be controlled by a common control panel, or console, in one embodiment.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 24, 2014
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Robert Kim, Jiyan Liu, Thomas McPeak, Khader Mohiuddin, Jon Moon, Richard A. Oftedahl, Norman Schwartz, Glenn Toews, Robert F. Wilson
  • Publication number: 20140155824
    Abstract: Medical devices for delivering a bioactive agent and methods of use thereof are provided. The device includes a balloon having micro-needles for delivery of the bioactive agent.
    Type: Application
    Filed: February 10, 2014
    Publication date: June 5, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: John E. Papp
  • Patent number: 8740874
    Abstract: A catheter includes an elongate body having first and second chambers extending within the elongate body from a proximal end to an intermediate section, the first chamber having a first opening and the second chamber having a second opening at the intermediate section. The catheter also includes a valve structure that may have first and second barrier elements to open or close the first and second openings, respectively. The first and the second barrier elements may be coupled by a connecting structure moving within an opening in a guide structure. Alternatively, the first and the second barrier elements may be coupled in a U-shaped structure that moves over the guide structure. To permit flushing of the chambers when the first and second openings are closed, the first and second chambers may also be connected by a connecting channel defined by an opening in a wall of the elongate body.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: June 3, 2014
    Assignee: Phase One Medical, LLC
    Inventor: Adrian C. Ravenscroft
  • Patent number: 8715230
    Abstract: Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: May 6, 2014
    Assignee: Caliber Therapeutics, Inc.
    Inventors: William R. Baumbach, Darren R. Sherman, Robert S. Burgermeister
  • Publication number: 20140121515
    Abstract: Apparatus and methods are provided for managing delivery of fluid into a vessel. A balloon catheter with a 3-way valve is introduced into an occluded vessel. The 3-way valve permits fluid, such as a contrast dye, to be injected into the vessel lumen. The valve is also configured to permit the balloon portion of the catheter to be inflated by means of the same lumen used to inject the contrast dye into the vessel. Bloodstream pressure can also be measured before and after dilation to confirm the procedure was successful. This apparatus and method provides for a quick, safe, and reliable treatment of an occluded vessel, among other things and works with known and later developed systems.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 1, 2014
    Applicant: Teleflex Medical. Inc.
    Inventors: Jeffrey Vitullo, David T. Rowe, John Victor
  • Patent number: 8708996
    Abstract: A method for synergistic mitigation of reperfusion injury after an ischemia event in a subject.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 29, 2014
    Assignee: Abbott Cardiovascular Systems, Inc.
    Inventors: Paul Consigny, Kevin J. Ehrenreich, Jesus Magana, Syed Hossainy
  • Patent number: 8696644
    Abstract: Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 15, 2014
    Assignee: Caliber Therapeutics, Inc.
    Inventors: William R. Baumbach, Darren R. Sherman, Robert Burgermeister
  • Publication number: 20140066848
    Abstract: A rectal medication administration device includes a tube, a balloon, a first valved port, and a second valved port. The tube includes a first lumen, a second lumen, and a plurality of holes extending from the first lumen therethrough. The balloon is proximal to the holes, is in communication with the second lumen, and is configured to be inflated to hold the tube in place within a patient's rectum. The first valved port is in communication with the first lumen and opens when connected to a first syringe or infusion set to provide medication transmission therethrough and closes when the first syringe or infusion set is withdrawn. The second valved port is in communication with the second lumen and opens when connected with a second syringe or infusion set to provide fluid to inflate the balloon and closes when the second syringe or infusion set is withdrawn.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 6, 2014
    Inventor: Bradford MACY, JR.
  • Publication number: 20140039389
    Abstract: Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 6, 2014
    Inventors: William R. Baumbach, Darren R. Sherman, Robert Burgermeister
  • Patent number: 8632492
    Abstract: An enteral feeding tube provides a conduit for the flow of liquid nutritional material. Most of the enteral feeding tube that is external to the patient is generally horizontal when the device is positioned in a stoma of a user lying in a prostrate position. A housing surrounds the horizontal portion enteral feeding tube, provides a low profile, aids in holding the enteral feeding tube in place, and protects the enteral feeding tube. The bottom surface of the housing comprises a resilient material that contacts the skin of the patient. The enteral feeding tube comprises a balloon that is positioned in the stomach to retain the device in the stomach. An air conduit extends generally vertically from an upper portion of the housing and through the enteral feeding tube to communicate with the balloon.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 21, 2014
    Inventor: Rebecca DeLegge
  • Publication number: 20140012194
    Abstract: A device for performing a medical procedure is provided. The device includes an elongate catheter disposed between a distal end portion and a proximal end portion, with a central portion therebetween. A central portion of the catheter includes parallel first and second lumens therethrough, wherein the first lumen extends through in the distal end portion and the second lumen extends through the distal end portion. A fluid input connection is provided along with a selection valve stem disposed within a valve housing.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 9, 2014
    Inventors: Matthew J. Terwiske, Justin D. Renfrow, Neal Bridgett
  • Patent number: 8603029
    Abstract: Apparatuses and methods for medication administration via a body cavity. In one aspect, a medication administration device includes: a tip portion having a plurality of holes and a balloon defining a balloon cavity. When the balloon is deflated the tip portion can be inserted into a body cavity, such as the rectum, to allow medication delivery through the holes in the tip portion. When inflated, the balloon can prevent the tip portion from being withdrawn from the body cavity and/or hold dispersed medication within the body cavity. The device further includes a port portion that has a first port and a second port, and an elongated tubular portion that is coupled between the tip portion and the port portion. The tubular portion has a first lumen connecting the first port to the plurality of holes in the tip portion, and a second lumen connecting the second port to the balloon cavity.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: December 10, 2013
    Assignee: Hospi Corporation
    Inventor: Bradford Macy, Jr.
  • Patent number: 8591466
    Abstract: A method of forming and enlarging a percutaneous penetration is provided. The method includes the step of providing a radially expandable dilation assembly having a needle assembly removably inserted in a axial lumen thereof. The radially expandable dilation assembly includes a radially expandable sleeve body defining a lumen and an introducer seal disposed across the lumen and defining an opening formed therein. The method further includes the steps of penetrating the radially expandable dilation assembly and needle assembly through tissue to a target surgical site, withdrawing the needle assembly from the radially expandable dilation assembly, and inserting an expansion assembly through the opening formed in the introducer seal and into the axial lumen of the radially expandable dilation assembly.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: November 26, 2013
    Assignee: Covidien LP
    Inventors: Thomas Wenchell, Robert C. Smith
  • Publication number: 20130304182
    Abstract: An apparatus and method for controlling inflation pressure, pressurization rate, and volumetric flow rate of a balloon during deployment of a stent or scaffold is disclosed.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 14, 2013
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen D. Pacetti, Yunbing Wang
  • Publication number: 20130304180
    Abstract: Catheter comprising an inner tubular member defining a fluid lumen and inflation lumen therein. An exterior surface of the inner tubular member defines a fluid flow port in fluid communication with the fluid lumen and located along a region of the inner tubular member. Catheter further includes an outer member having a distal section movable relative to the inner tubular member and having an interior surface. A piston balloon is coupled to the inner tubular member distal to the fluid flow port and is in fluid communication with the inflation lumen. A pressure chamber is in fluid communication with the fluid flow port. Fluid introduced through the inflation lumen inflates the piston balloon to seal against the interior surface and fluid introduced through the fluid flow port and into the pressure chamber applies a force to urge at least the distal section of the outer member in a proximal direction.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 14, 2013
    Inventors: Michael L. Green, Michael R Bialas
  • Publication number: 20130226083
    Abstract: Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon.
    Type: Application
    Filed: April 2, 2013
    Publication date: August 29, 2013
    Applicant: Caliber Therapeutics, Inc.
    Inventor: Caliber Therapeutics, Inc.
  • Patent number: 8500684
    Abstract: A balloon catheter having an elongated catheter shaft defining a fluid drainage lumen and a balloon inflation lumen. The balloon catheter includes a fluid drainage port disposed about the distal end of the catheter shaft in fluid communication with the fluid drainage lumen, and a balloon inflation port disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation lumen. A balloon portion is disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation port. A release device is disposed in fluid communication with the balloon portion and the fluid drainage lumen, and includes an activating member. A tether is attached to the activating member of the release device. Tension applied to the tether activates the release device, enabling fluid flow from the balloon portion into the fluid drainage lumen and out of the body.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: August 6, 2013
    Inventors: Bruce A. Gardner, Jeffery A. Gardner, David Allan Swanson
  • Patent number: 8491621
    Abstract: An instrument configured to prepare a penis for implantation of a penile prosthetic includes a rigid shaft extending between a proximal end and a distal end that is insertable into the penis, and an expandable member coupled to a distal end portion of the shaft. The expandable member is movable between a first position having a first diameter that is substantially equal to a diameter of the rigid shaft and a second position having a second diameter that is larger than the diameter of the rigid shaft and configured to dilate tissue of the penis.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: July 23, 2013
    Assignee: Coloplast A/S
    Inventor: Randy L. Morningstar
  • Publication number: 20130123622
    Abstract: The present invention relates to a balloon catheter system for draining and/or supplying fluid from/into hollow organs, body cavities or cysts, comprising a conduit catheter with an open distal end, a hollow needle guided in a separate guide conduit and a balloon surrounding the catheter stem at the distal end of the conduit catheter. The conduit catheter with the hollow needle can be inserted from outside into the hollow organ via a guide catheter, into the body cavity or cyst, the balloon can be filled with filling medium via the hollow needle through an opening formed in the guided duct and provided in the lumen of the balloon, and it can be fixed in the hollow organ, body cavity or cyst. The hollow needle can be removed from the guide duct after filling the balloon. The balloon and the conduit catheter remain in the hollow organ, body cavity or cyst.
    Type: Application
    Filed: June 8, 2011
    Publication date: May 16, 2013
    Applicant: Universitätsmedizin der Johannes Gutenberg Universität Mainz
    Inventor: Michael Tchirikov
  • Patent number: 8366660
    Abstract: The invention relates to a medical device for delivering a therapeutic agent to a tissue. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent and an additive. The additive has a hydrophilic part and a hydrophobic part and the therapeutic agent is not enclosed in micelles or encapsulated in particles or controlled release carriers.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 5, 2013
    Assignee: Lutonix, Inc.
    Inventor: Lixiao Wang
  • Publication number: 20130018308
    Abstract: A probe including a housing, a rectal muscle air bag, a rectal tube, an anal muscle air bag, and an anal tube is provided. The rectal muscle air bag mounts to the housing a first distance from a non-insertion end. A rectal tube is connected to the rectal muscle air bag at a first end and to a first pressure sensor at a second end. The anal muscle air bag is mounted to the housing a second distance from the non- insertion end. The anal tube is connected to the anal muscle air bag at a first end and to a second pressure sensor at a second end. The first distance is selected to position the rectal muscle air bag adjacent a rectal muscle, and the second distance is selected to position the anal muscle air bag adjacent an anal muscle when the housing is inserted in the rectum.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Inventors: Satish Sanku Chander Rao, Muralidhar Nukala Sunil Kumar
  • Publication number: 20120302996
    Abstract: A rapid exchange catheter has an outer conduit and a hollow inner conduit disposed in the lumen of the outer conduit. The inner conduit includes a distal part, a proximal part and a variable length sleeve member sealingly attached between the proximal part and distal part. The distal end of the distal part of the inner conduit extends beyond the distal end of the outer conduit. An inflatable balloon is sealingly attached to the distal end of the outer conduit and to the proximal part of the inner conduit. The balloon intussuscepts upon proximal movement of the distal part of the inner conduit. A pulling member is attached to the distal part of the inner conduit for moving the distal part of the inner conduit proximally to longitudinally shorten the sleeve member. A fluid port allows inflating and deflating the balloon.
    Type: Application
    Filed: October 3, 2010
    Publication date: November 29, 2012
    Inventors: Alexander Barash, Roy Feig, Eran Harari
  • Publication number: 20120245519
    Abstract: A balloon catheter device includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. An inflatable balloon is located at a distal end of the catheter and is inflated through an inflation valve located on a base. An internal cavity is defined in the base and is in fluid communication with the inflatable balloon. A translucent window is disposed over the internal cavity such that an interior volume of the cavity is externally viewable. Introduction of a colored fluid through the inflation valve to inflate the balloon results in the colored fluid also being present in the internal cavity, thereby providing an externally visual indication of the inflation state of the balloon.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 27, 2012
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: John A. Rotella, Adrienne A. Hershey, Donald J. McMichael
  • Patent number: 8241248
    Abstract: Devices and systems for providing retroperfusion and autoretroperfusion therapies to a brain. In certain embodiments, the devices and systems disclosed herein comprise a flow unit configured to adjust the flow rate and pressure of the arterial blood used for perfusion of the venous system. Methods for delivering a bridge retroperfusion therapy are also disclosed such that, after the onset of a stroke or other adverse cerebral event, the brain cells' window of viability may be extended and other treatments, including pharmaceutical and neuroprotective therapies, may be more effectively utilized.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: August 14, 2012
    Assignee: CVDevices, LLC
    Inventor: Ghassan S. Kassab
  • Publication number: 20120197191
    Abstract: An enteral feeding tube provides a conduit for the flow of liquid nutritional material. Most of the enteral feeding tube that is external to the patient is generally horizontal when the device is positioned in a stoma of a user lying in a prostrate position. A housing surrounds the horizontal portion enteral feeding tube, provides a low profile, aids in holding the enteral feeding tube in place, and protects the enteral feeding tube. The bottom surface of the housing comprises a resilient material that contacts the skin of the patient. The enteral feeding tube comprises a balloon that is positioned in the stomach to retain the device in the stomach. An air conduit extends generally vertically from an upper portion of the housing and through the enteral feeding tube to communicate with the balloon.
    Type: Application
    Filed: September 23, 2011
    Publication date: August 2, 2012
    Inventor: Rebecca DeLegge
  • Publication number: 20120197192
    Abstract: An inflatable retention system for an enteral feeding tube having a base deployed outside the human body and an indwelling retainer which is deployed within a lumen or cavity of the body by insertion through a stoma from outside the body. The retention system includes a tube having a proximal end, a distal end, an external tube diameter, and tube walls defining a feeding lumen and an inflation lumen. The retention system also includes an inflatable balloon located at a distal end of the tube in fluid communication with the inflation lumen, the balloon having thin, flexible walls, a predetermined spheroid shape, and a volume at which a fluid in the balloon is under no pressure such that upon inflation with a fluid to pressurize fluid in the balloon, the balloon assumes a stable spheroid shape and exhibits a substantially linear pressure versus volume curve.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 2, 2012
    Inventors: Alison S. Bagwell, Thomas G. Estes, Donald J. McMichael, John A. Rotella, Scott M. Teixeira
  • Publication number: 20120197193
    Abstract: Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 2, 2012
    Applicant: HOTSPUR TECHNOLOGIES, INC
    Inventors: Jeffrey A. Krolik, Juan Domingo, Gwendolyn Watanabe, Ray Betelia, Lucas Fernandez
  • Patent number: 8211157
    Abstract: A balloon catheter comprises an inner tube, a medical balloon and an inflation lumen. The medical balloon is disposed about the inner tube and in fluid communication with the inflation lumen. A collapsible portion of the inner tube is constructed to collapse inward upon delivery of an inflation fluid to the medical balloon to secure the inner tube to the guidewire.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: July 3, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Paul J. Miller, Matthew J. Tracy