Having Means On Body Entering Conduit To Facilitate Longitudinal Tearing Of Conduit Patents (Class 604/164.05)
  • Patent number: 10456558
    Abstract: Dislodging an anchor sleeve from an implanted device may be accomplished with a tool that includes a support portion and a sleeve dislodging element, wherein a collar of the support portion engages a distal end of the anchor sleeve while the dislodging element, positioned at a proximal end of the sleeve, is moved toward the collar to dislodge the anchor sleeve. The tool preferably includes a handle member held in sliding engagement with a base member, for example, by a snap-fit, wherein the support portion is part of the handle member, and a distal segment of the base member is terminated by the dislodging element. A tool kit may include a plurality of base members, each one including a different type of dislodging element, from which an operator may select for snap-fitting to a handle member of the kit.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 29, 2019
    Assignee: Medtonic, Inc.
    Inventor: Daniel C. Oster
  • Patent number: 10449335
    Abstract: A peelable protective sheath and related assemblies/systems and methods are disclosed. The protective sheath may be used on a balloon catheter to protect the balloon and any coating thereon. The protective sheath may be peelable to make removal of the protective sheath easier. The peelable protective sheath may be inserted into a hemostatic valve and introducer while still disposed over the balloon of a balloon catheter to protect the balloon and any bioactive coating thereon from damage during insertion. The peelable protective sheath may be peeled from a proximal end to initiate removal. Alternatively, the peelable protective sheath may be peeled from a distal end of the peelable protective sheath as the balloon catheter is inserted through a hemostatic valve and introducer.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: October 22, 2019
    Assignee: C.R. Bard, Inc.
    Inventors: Rachel Poker, Bruce Asmus
  • Patent number: 10433852
    Abstract: The disclosure sets forth various exemplary embodiments of systems, methods, and/or medical apparatuses including but not limited to: a sheath; and a balloon disposed at a working distal end of the sheath. According to one example embodiment the medical device can include where the sheath can include woven wire reinforcing axial and longitudinal strength, side holes, a one direction distal valve, and can include an inflator. According to one example embodiment the medical device can include where the sheath can include a narrow cross-section of, e.g., 7-8 Fr and balloon of length of, e.g., 12 cm.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: October 8, 2019
    Inventor: William H'Doubler
  • Patent number: 10226616
    Abstract: One embodiment is a lead introducer including an outer needle, an inner needle, a splittable member, and an annular seal member. The outer needle, inner needle, and splittable member each include a body and hub. The splittable member fits over the outer needle body and the inner needle body and can be separated longitudinally. The splittable member hub receives at least portions of both the inner needle hub and the outer needle hub within the splittable member hub. The annular seal member is formed by either a) the inner needle hub or b) a combination of the inner needle hub and outer needle hub. The annular seal member forms a fluid-resisting seal with the interior surface of the splittable member hub when the portions of the inner needle hub and outer needle hub are received within the splittable member hub.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: March 12, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: John M. Barker
  • Patent number: 9844381
    Abstract: A treatment device (500) is provided including a shaft (507), an expandable member, a first elongated control member (508) and a second elongated control member (502). The expandable member can further include at least a first controllable portion (504) and a second controllable portion (503), where the expandable member, including the first controllable portion and the second controllable portion, is configured to transition between at least a partially retracted configuration and an expanded configuration under control of at least the first elongated control member (508). Further still, the first controllable portion can be configured to transition between at least a partially retracted configuration and an expanded configuration, while the second controllable portion (503) is configured to remain substantially unchanged, under control of at least the second elongated control member (502).
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 19, 2017
    Assignee: RAPID MEDICAL LTD.
    Inventors: Ronen Eckhouse, Yuri Sudin, Aharon Friedman, Shimon Eckhouse
  • Patent number: 9669186
    Abstract: A method of manufacturing a splittable/peelable tubular body of a catheter or sheath wherein the tubular body has a splittable/peelable atraumatic tip is disclosed. The atraumatic tip is generally softer than the tubular body. The tubular body and atraumatic tip each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding between first and second longitudinally extending strips of polymer material. Each strip forms at least a portion of an outer circumferential surface of the tubular body and atraumatic tip. A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body and atraumatic tip along their respective peel mechanisms.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: June 6, 2017
    Assignee: ST. JUDE MEDICAL ATRIAL FIBRILLATION DIVISION
    Inventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
  • Patent number: 9597063
    Abstract: An introducer sheath is described. The introducer sheath may include a tubular body. The tubular body may extend from a distal end toward a proximal end. The tubular body may include a lumen. The lumen may at least partially be defined by a wall. A channel may be disposed within the wall. The channel may be configured to receive a guidewire. The tubular body may include an expandable portion expandable to increase a cross-sectional area of the lumen.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 21, 2017
    Assignee: ABBOTT LABORATORIES
    Inventors: Laveille K. Voss, Kelly J. McCrystle
  • Patent number: 9474887
    Abstract: Features of guides and surgical implements, which may be utilized together in various assemblies, are disclosed. Surgical implements or other devices within the scope of this disclosure may include a circumferentially grooved knob. The knob may be configured to receive a portion of a guide. Further, a clip may be configured to releasably secure the guide to the surgical implement. The clip may be coupled to the knob, for example, by a strap rotatably coupled to the knob. The knob may also define a stop-ledge configured as an abutment for the guide. The knob may also define a central passageway, which may also be surrounded by a hollow hub, for receiving an additional surgical implement or device.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 25, 2016
    Assignee: Merit Medical Systems, Inc.
    Inventor: John A. Navis
  • Patent number: 9314269
    Abstract: A new process of manufacturing a hybrid cannula may include creating a first part with at least two components, overmolding at least two components of a second part to a channel in each component of the first part, and fixing the components of the first part together. The second part may include various types of features such as thick/thin dams, squirt membranes, and/or duck bill dams inside the hybrid cannula. Each dam may have any number, shape, orientation, and length of slits/openings. The slits/openings may allow passage of an instrument while the dam(s) may prevent fluid from passing through the hybrid cannula. A third part may optionally be overmolded to at least a portion of the first part, at least a portion of the second part, or both. The third part may provide an extension, a flange, or a combination thereof at a distal end of the hybrid cannula.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: April 19, 2016
    Assignee: Hybrid Cannula LP
    Inventors: Jonathan H. Webb, Lyle Theodore Crum, Bradley Thomas Burns
  • Patent number: 9278197
    Abstract: Slitting tool for slitting open a catheter shaft, including a housing, a blade fastened on the housing, a pushbutton, which is mounted so it is displaceable on the housing, and clamping forceps, which are mounted so they are movable on the housing. The clamping forceps are partially located inside the housing, and include two clamping legs, which are connected to one another at their base located in the housing and have a mutual pre-tension, and which cause the fixation of an electrode line on their periphery located outside the housing, such that the pushbutton, which is mounted so that it is displaceable, and the clamping forceps, which are mounted so that they are movable, act together with one another in such a manner that an actuation of the pushbutton causes an opening of the fixation in the periphery of the clamping forceps.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: March 8, 2016
    Assignee: BIOTRONIK SE & Co. KG
    Inventors: Ole Grauhan, Tassilo Landgraf, Ramona Braun
  • Patent number: 9161775
    Abstract: A tunneling tool for implanting a medical device into body tissue is described. The tunneling tool comprises a first leg and a second leg. An intermediate portion of the second leg is shaped to nest a medical device therein. A hub connects the first and second distal leg ends together. A sheath providing a lumen extends from the hub to an open end distal of the first and second legs. The first and second legs are manipulatable to separate the hub and the sheath into two portions, a first split portion connected to the first leg and a second split portion connected to the second leg. When a medical device is nested in the tunneling tool, breaking the tunneling tool apart enables the first and second split portions to be removed from body tissue, leaving the implanted medical device behind.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: October 20, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Rodolphe Katra, Walter J. Dobrovolny, Scott Kimmel
  • Publication number: 20150126930
    Abstract: A sheath can include a sheath body and a sheath hub. The sheath body can have a generally flexible tubular structure, a proximal end, and a distal end. The sheath body can further define a longitudinal axis. The sheath hub can attach to the proximal end of the sheath body and define a longitudinal axis generally aligned with the axis of the sheath body. The sheath body and sheath hub can also form a central cavity along their respective axes. The sheath hub can include two plates: a flexible plate and a rigid plate. The rigid plate can have a relief generally centered on the sheath body's axis. Advantageously, the flexible plate and rigid plate can overlap to substantially seal the central cavity.
    Type: Application
    Filed: September 8, 2014
    Publication date: May 7, 2015
    Inventors: Steven F. Bierman, Richard A. Pluth
  • Patent number: 8932260
    Abstract: Tear-away and non-tear-away sheath introducers for catheters, methods for making such introducers, and methods for using such introducers are described. The sheath introducers contain movable valves that are encapsulated in a movable housing that allows the valve to move along the axis of the introducer. As the movable valve and housing travel along the axis, a portion of the hub protrudes past the valve and is exposed. As well, the sheath introducers can also contain a stationary valve and housing that can be opened to expose a portion of the hub when a conduit penetrates the stationary valve. In both instances, the protruding portion of the hub contains a friction-free pathway for a catheter into the sheath introducer. The introducers can therefore be used with any catheter, regardless of the size or material, because of the reduced or eliminated frictional force between the catheter and introducer.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: January 13, 2015
    Assignee: C. R. Bard, Inc.
    Inventors: Eric M. King, Ronald Wortley
  • Patent number: 8926564
    Abstract: Tear-away sheath introducers for catheters and methods for making and using such introducers are described. The sheath introducers contain movable valves that are encapsulated in a movable housing that allows the valve to move along the introducer axis. As the movable valve and housing travel along the axis, a portion of the hub protrudes past the valve and is exposed. As well, the sheath introducers can also contain a stationary valve and housing that can be opened to expose a portion of the hub when a conduit penetrates the stationary valve. The conduit can include a one-way, two-way, or other suitable valve actuator that can penetrate and open the valve, yet remain attached to a portion of the introducer when the introducer is split for removal from a patient. In both instances, the protruding portion of the hub contains a friction-free pathway for a catheter into the sheath introducer.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 6, 2015
    Assignee: C. R. Bard, Inc.
    Inventors: Eric M. King, Spencer R. Thomas
  • Patent number: 8900192
    Abstract: An access device places a medical article within a body space of a patient. The device has a needle that includes an elongated body and a needle hub. The device further includes a dilator disposed on and slideable along the elongated body of the needle and a medical article. The medical article is disposed on and slideable along the dilator. A track extends in a proximal direction from the dilator. The needle hub slides along at least a portion of the track between a first position and a second position. The device further includes a locking mechanism operably disposed between the track and the needle hub so as to inhibit further axial movement of the needle in the proximal direction when the needle hub is in the second position.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: December 2, 2014
    Assignee: Access Scientific, LLC
    Inventors: Janelle Anderson, Steven F. Bierman, Wei Huang, Richard A. Pluth
  • Publication number: 20140336581
    Abstract: The aim of the present invention is to provide a catheter with a puncturing cannula which may be removed from the catheter without risk of injury for the patient and the nursing staff nor risk of damaging the equipment, and whose tip is protected before as well as after puncturing the body cavity. According to the invention, this object is satisfied by a catheter with removable cannula (1) for puncturing a body cavity, whereas the catheter can be moved freely in the longitudinal direction in the cannula (1). The cannula is characterised in that it is tubular in shape and provided with a longitudinal slot (10) extending over 45° to 180° of the circumference of the cannula (1) and in that it is provided in a tubular sheath (2) so that they can be displaced in the longitudinal direction inside said tubular sheath (2).
    Type: Application
    Filed: October 19, 2012
    Publication date: November 13, 2014
    Applicant: B. BRAUN MEDICAL SAS
    Inventor: Rémi Collin
  • Patent number: 8827958
    Abstract: A sheath can include a sheath body and a sheath hub. The sheath body can have a generally flexible tubular structure, a proximal end, and a distal end. The sheath body can further define a longitudinal axis. The sheath hub can attach to the proximal end of the sheath body and define a longitudinal axis generally aligned with the axis of the sheath body. The sheath body and sheath hub can also form a central cavity along their respective axes. The sheath hub can include two plates: a flexible plate and a rigid plate. The rigid plate can have a relief generally centered on the sheath body's axis. Advantageously, the flexible plate and rigid plate can overlap to substantially seal the central cavity.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: September 9, 2014
    Assignee: Access Scientific, LLC
    Inventors: Steven F. Bierman, Richard A. Pluth
  • Patent number: 8753313
    Abstract: An improved splittable medical device introducer designed to introduce a medical device such as a lead or catheter, into a patient's vasculature without loss of blood or introduction of air is described. The introducer assembly is designed with a notch provided at the proximal end of the introducer housing. The notch, which may comprise a multitude of cross-sectional geometries, is designed to reduce the force required to separate the housing and the introducer sheath, thereby minimizing the possibility of unintentional dislodgement during separation. The notch also increases the repeatability and consistency of the amount of force required to separate the introducer housing and sheath.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: June 17, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Scott Kimmel, Nicholas Kampa, Mark Nelson, Blane Larson
  • Patent number: 8728055
    Abstract: The present invention is a splitable/peelable reinforced flexible tubular body (10) for a catheter or sheath (12). The body (10) comprises a proximal end (14), a distal end (16), a wall structure (18), and a lumen (20) defined by the wall structure (18). The wall structure (18) extends between the ends and includes a reinforcement layer (22) within the wall structure (18) and a separation line (26) extending longitudinally along the wall structure (18). The separation line (26) is adapted to facilitate the splitting/peeling of the wall structure (18) to allow a medical device such as a pacemaker lead to be removed from within the tubular body (10).
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: May 20, 2014
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Richard E. Stehr, Xiaoping Guo
  • Patent number: 8721546
    Abstract: Devices and methods for guidewire assisted placement of catheters into blood vessels are described. Some of the devices and methods relate to automated or partially automated or assisted insertion and placement of an intravenous catheter into a vein or artery of a patient. Other of the devices are blood draw devices and methods for insertion and placement of an intravenous device into a vein or artery of a patient or to withdraw a blood sample from the patient. The devices also provide for guide wire tip inspection after use.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: May 13, 2014
    Assignee: Vascular Pathways, Inc.
    Inventor: Amir Belson
  • Patent number: 8672889
    Abstract: A tissue tunneling device is configured to be delivered within the body. The tunneling device includes a shaft with a blunt distal end to prevent coring or other damage to tissue during the delivery of the tunneling device. In some arrangements, the shaft includes one or more lumen, through which medication or another fluid may be administered. An anesthetic or other pain relieving medication may be delivered through the lumen to lessen the discomfort of delivering the tunneling device to the desired anatomical site. The handle of the tunneling device can be adapted to receive a syringe or another type of fluid source. The shaft may also include a retractable needle for facilitating the advancement of the tunneling device through skin or other tissue. The shaft may also be provided with an outer sheath, which may be left within the anatomy after the tunneling device has been removed.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: March 18, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Roger Massengale, Steve Khalaj
  • Patent number: 8666514
    Abstract: A peel away lead implant tool is adapted to be disposed over the terminal connector of a lead during an implantation procedure to protect the terminal connector. The peel-away lead implant tool includes a flexible polymer sheath including electrical contacts formed in a contact region of the sheath. The electrical contacts can be either metal foil contacts or conductive polymer contacts and extend from an outer surface to an inner surface of the sheath such that when the testing apparatus is coupled to the lead implant tool, the electrical contacts are pressed into electrical contact with the ring electrodes located on the terminal connector. The lead implant tool configured for facilitating the easy removal of the implant tool from the terminal connector when the implantation procedure is complete.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: March 4, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Bruce A. Tockman, Timothy R. Jackson, Peter J. Wolf
  • Patent number: 8657789
    Abstract: A splittable/peelable tubular body (2) of a catheter or sheath wherein the tubular body (2) has a splittable/peelable atraumatic tip (14) is disclosed. The atraumatic tip (4) is generally softer than the tubular body (2). The tubular body (2) and atraumatic tip (4) each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding (11) between first and second longitudinally extending strips (8, 10) of polymer material. Each strip (8, 10) forms at least a portion of an outer circumferential surface of the tubular body (2) and atraumatic tip (4). A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body (2) and atraumatic tip (4) along their respective peel mechanisms.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 25, 2014
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
  • Patent number: 8584364
    Abstract: A tool for slitting an elongate sheath from about an elongate member that is disposed within a longitudinally extending lumen of the sheath includes a longitudinally extending tail portion projecting rearward of a slitting edge and a nose portion of the tool; a lower surface of the nose portion is disposed beneath the slitting edge for engaging a portion of the elongate member. The tail portion of the tool, approximately aligned with the sheath lumen when the lower surface, engages the elongate member and a leading edge of the nose portion is within the sheath lumen, is sized to fit within the sheath lumen after the sheath is slit by the slitting edge. A passageway between the nose portion and the tail portion allows a proximal segment of the elongate member to bend away from the tail portion when the elongate member is engaged by the nose portion.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 19, 2013
    Assignee: Medtronic, Inc.
    Inventors: Johnson E. Goode, Ron A. Drake
  • Patent number: 8579932
    Abstract: An apparatus for delivering a clip includes an introducer sheath including an outer surface extending between its proximal and distal ends. A clip is carried on the outer surface, e.g., on a carrier assembly that is slidable along the outer surface from the proximal end towards the distal end. A skin overlies the outer surface of the sheath and the carrier assembly that is separable from the outer surface as the carrier assembly is advanced from the proximal end towards the distal end of the sheath. During use, the distal end of the sheath is inserted into an opening through tissue, e.g., into a puncture communicating with a blood vessel. The carrier assembly is advanced towards the distal end of the sheath, causing the skin to separate from the outer surface of the elongate member, and the clip is deployed from the carrier to seal the opening.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 12, 2013
    Assignee: Integrated Vascular Systems, Inc.
    Inventors: Anthony J. Pantages, Ronald J. Jabba, Richard S. Ginn
  • Patent number: 8512389
    Abstract: A method and apparatus for introducing a first elongate medical device and short wire guide that are coupled together into a work site and remotely disconnecting them within the work site such that a secondary device comprising a catheter member can be introduced over the wire guide to the work site, and/or a second wire guide can be introduced to the work site via a passageway of the primary access device. A separating member may be provided to remotely separate the wire guide from the elongate medical device.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 20, 2013
    Assignee: Cook Medical Technologies, LLC
    Inventors: Juan Carlos Ayala, Stephen E. Deal, Charles Agnew, Gregory J. Skerven
  • Patent number: 8486105
    Abstract: Apparatus and methods are provided for use in filtering emboli from a vessel and/or performing thrombectomy and embolectomy, wherein a vascular device disposed on a guidewire comprises a support hoop disposed from a suspension strut. Alternately, a support hoop having an articulation region may be directly connected to a region proximate the distal end of the guidewire. A blood permeable sac is affixed to the support hoop to form a mouth of the blood permeable sac. The support hoop is disposed obliquely relative to the longitudinal axis of the guidewire and is capable of being properly used in a wide range of vessel diameters. The vascular device collapses during removal to prevent material from escaping from the sac. A delivery sheath and introducer sheath for use with the vascular device of the present invention are also provided.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: July 16, 2013
    Assignee: Incept LLC
    Inventors: Jackson F. Demond, Farhad Khosravi, Jeff A. Krolik, Stephen Ramee, Richard J. Renati, Amr Salahieh, Kirk Hsueh-Kai Young
  • Publication number: 20130178825
    Abstract: Methods and devices are disclosed herein that generally involve a sterile catheter-dressing system that allows for integrated injection of fluids, e.g., a saline flush, during the process of catheter insertion and sterile dressing placement. Such methods and devices can be used as a fully integrated catheter insertion system, or to convert existing catheter insertion devices and methods into integrated flush and sterile sealing catheter-dressing systems. Such methods and devices can greatly simplify the catheter insertion process, and can allow the reproducible placement of a fully sterile and flushed vascular catheter, as well as the placement of a durably sterile circumferentially sealing and securing dressing.
    Type: Application
    Filed: September 13, 2012
    Publication date: July 11, 2013
    Inventor: Robert E. Helm, JR.
  • Patent number: 8480627
    Abstract: An introducer assembly is provided with a handle assembly (10) which enables automatic retraction and splitting of a sheath (12) of the assembly. The handle includes a drum (22) onto which the sheath (12) can be wound, as well as a cutting blade (30) and a locking assembly (34). The locking assembly (34) provides for flushing of the space between the sheath (12) and inner catheter or other element (14), in a manner in which the handle assembly (10) is not filled with flushing fluid. The locking assembly (34) also provides for clamping of the sheath (12) during transportation and initial insertion of the introducer assembly into a patient and for release of the sheath (12) after flushing and when it is desired to retract the sheath (12). Once so released, the sheath (12) can be retracted and automatically split by means of the cutting blade (30).
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 9, 2013
    Assignee: Cook Medical Technologies LLC
    Inventor: Frank Karhu Christiansen
  • Patent number: 8414537
    Abstract: A tearaway introducer sheath assembly (10) for use in implantation of a catheter into a patient, having an elongated polytetrafluoroethylene sheath tube (12) and a proximal polyethylene hub component (16). The hub comprises two halves (22) insert molded about the sheath tube proximal end and joined to each other by frangible webs (28) enabling manual splitting. At least one pair of opposed holes (42) is formed through the tube proximal end portion 44, and a polyethylene liner (46) is inserted into the tube's proximal end portion. The polyethylene flows into the at least one pair of holes (42) to fuse with the liner, establishing a pair of physical joints (50?) integrally joining the liner (46) to a respective hub half (22). Upon manual splitting of the hub halves, the sheath tube easily splits along its length as a result of a property of the polytetrafluoroethylene material.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 9, 2013
    Assignee: Medical Components, Inc.
    Inventors: Mahase Nardeo, Trevor Spence
  • Patent number: 8398596
    Abstract: A needle assembly comprises a metal needle (1) with a hub (13) and a marker in the form of a bubble-filled plastics rod (2) inserted within the needle. The rod (2) makes the assembly more visible under ultrasound observation when confirming correct placement of the needle (1) and is subsequently removed when correct placement has been confirmed.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: March 19, 2013
    Assignee: Smiths Group PLC
    Inventor: Stephen James Field
  • Publication number: 20130053780
    Abstract: A delivery system for an implantable member includes an elongated dilator splittable at both the proximal and distal ends. The dilator has a tapered distal end and a pair of tabs at the proximal end. An introducer for the implantable member is received in a passageway of the dilator and extends along a length of the dilator to the tapered distal end. The introducer is arranged relative to the dilator such that upon a relative proximal movement of the dilator, the tapered distal tip of the dilator splits whereby the distal end of the introducer extends therethrough. A handle has a gripping mechanism for engagement with each tab for initiating proximal movement of the dilator relative to the introducer upon rotation of the gripping mechanism. The handle is structured for splitting the dilator proximal portion upon the relative proximal movement of the dilator.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 28, 2013
    Applicant: Cook Medical Technologies LLC
    Inventors: Louis B. Goode, Chun Kee Lui, Robert Booker
  • Patent number: 8343105
    Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: January 1, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: James E. Windheuser, Fernando Alvarez de Toledo
  • Patent number: 8328760
    Abstract: Catheters configured to minimize, prevent, disrupt, and/or treat thrombus accumulation and subsequent occlusion are disclosed. Such catheters include at least one sidewall cut extending to the catheter distal end that forms catheter sidewall portions that move relative to each other when subjected to a force greater than a threshold force.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: December 11, 2012
    Assignee: Angiodynamics, Inc.
    Inventor: Raymond Lareau
  • Publication number: 20120296255
    Abstract: A device for puncturing body and introducing catheter includes a puncture needle, a guide wire, a peelable catheter sheath, and a puncture protector. The peelable catheter sheath includes an outer sheath and an inner sheath inserted into the outer sheath and having an expansible performance. The inner sheath has a hollow internal cavity, and the guide wire can pass through the hollow internal cavity. The puncture protector includes an inner core, a nut and a spring. The inner core has an inner core head, an inner core tail, and an inner core lumen. The nut has a nut lumen. The inner core is surrounded by the spring, one end of which abuts against the nut, and the other end of which is fastened to the inner core. The inner core tail lies within the nut lumen. The guide wire matches with the inner core lumen.
    Type: Application
    Filed: September 1, 2010
    Publication date: November 22, 2012
    Inventors: Qingliang Feng, Yonghao Jiang
  • Publication number: 20120253279
    Abstract: A method of introducing a catheter 38 into an umbilical artery 14. The artery 14 is dilated with an introducer 22. A cannula 30 is introduced into the end of the artery 14, and a catheter is introduced through the cannula 30, with the distal end of the catheter 38 not engaging with the cut end of the artery 14.
    Type: Application
    Filed: February 10, 2012
    Publication date: October 4, 2012
    Inventor: Patrick Stuart Thorp
  • Patent number: 8262672
    Abstract: A delivery device includes an outer sidewall and an inner sidewall extending therein. An outer surface of the inner sidewall defines a plurality of longitudinally extending grooves, each of which interlock with a corresponding inward protruding member of a plurality of longitudinally extending inward protruding members defined by an inner surface of the outer sidewall. A longitudinally extending lumen of the device, which may accommodate delivery of an implantable medical device, is defined, at least in part, by the inner surface of the inner sidewall. A slitting zone of the device, for example, provided by one of the sidewalls extending less than 360 degrees about a longitudinal axis of the device, enables removal of the delivery device from around the delivered device.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: September 11, 2012
    Assignee: Medtronic, Inc.
    Inventors: Michael R. Neidert, Kenneth C. Gardeski
  • Patent number: 8262619
    Abstract: An introducer sheath includes a tubular body portion having a proximal region and a distal region, and defines an internal lumen configured and dimensioned to slidably receive a catheter. A penetrating portion at a distal end of the tubular body has a first tapered configuration to enlarge an opening in a body tissue during distal advancement of the introducer sheath through the body tissue and a second expanded configuration to enable the passage of a distal end portion of a catheter through the penetrating portion.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: September 11, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Casey Chebator, A. Ken Chan
  • Patent number: 8257312
    Abstract: A catheter system for positioning of an instrument within a body. The catheter system includes a hub defining a lumen therethrough for passage of the instrument and an elongate tubular member defining a lumen therethrough. The lumen of the tubular member is in communication with the lumen of the hub. The system also includes a slitter member that is coupled to the hub. The slitter member is disposed to slit the tubular member. The slitter further includes a moveable member that is moveably coupled to the hub and that is coupled to the tubular member, the moveable member is operable to advance the elongate tubular member toward the slitter member as the moveable member is moved relative to the hub. The slitter member thereby slits the elongate tubular member.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: September 4, 2012
    Assignee: Medtronic, Inc.
    Inventor: Niall Duffy
  • Patent number: 8167842
    Abstract: An introducer apparatus with a plurality of cutting edges along the outer surface of the distal end of an introducer with a blunt distal end is disclosed. The introducer may be adapted to extend from and be withdrawn into the sheath. The cutting edges may resect tissue located around the insertion site.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 1, 2012
    Assignee: Mayo Foundation for Medical Education and Research
    Inventor: Andre C. Lapeyre
  • Patent number: 8137317
    Abstract: A vascular introducer assembly is disclosed that includes a dilator, a sheath having an axial lumen for accommodating the dilator, a locking collar for securing the dilator and the sheath to one another and an adjustable hemostatic seal for preventing fluid egress from the axial lumen and restricting insertion of instruments through the axial lumen before and after the dilator is separated from the vascular introducer.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: March 20, 2012
    Assignee: Oscor Inc.
    Inventor: Thomas P. Osypka
  • Publication number: 20120065590
    Abstract: A sheath can include a sheath body and a sheath hub. The sheath body can have a generally flexible tubular structure, a proximal end, and a distal end. The sheath body can further define a longitudinal axis. The sheath hub can attach to the proximal end of the sheath body and define a longitudinal axis generally aligned with the axis of the sheath body. The sheath body and sheath hub can also form a central cavity along their respective axes. The sheath hub can include two plates: a flexible plate and a rigid plate. The rigid plate can have a relief generally centered on the sheath body's axis. Advantageously, the flexible plate and rigid plate can overlap to substantially seal the central cavity.
    Type: Application
    Filed: May 12, 2010
    Publication date: March 15, 2012
    Applicant: ACCESS SCIENTIFIC, INC.
    Inventors: Steven F. Bierman, Richard A. Pluth
  • Publication number: 20120059321
    Abstract: A tunneler for producing a subcutaneous tunnel in connection with the placement of a catheter within a body of a patient is disclosed. In one embodiment, the tunneler comprises an elongate tunneler member and a sheath. The tunneler member includes a handle on its proximal end and a tapered distal end. The sheath defines an elongate lumen inside which the tunneler member is initially received. The tunneler member is configured to define a tunnel through subcutaneous tissue while disposed in the sheath, then is removable from the sheath lumen thereafter. The sheath is configured to remain within the tunnel so that a catheter can be inserted through the sheath within the tunnel. The sheath is splittable in one embodiment so as to enable its removal from the tunnel while leaving the catheter in place.
    Type: Application
    Filed: August 30, 2011
    Publication date: March 8, 2012
    Applicant: C. R. BARD, INC.
    Inventors: Alisha M. Hammond, Matthew W. Bown, Jeremy C. Horton, Spencer R. Thomas
  • Patent number: 8105287
    Abstract: A tearaway introducer sheath assembly (100,200) having an integrated valve (300). The valve is seated within a valve housing (222) defined by the hub portion (200) of the sheath (200). The valve (300) includes a pair of distally extending opposed side walls or flaps (324) extending to converge at a distal tip (328) having a virtual opening (334) therethrough. The valve further includes a pair of tensioners (340) along outer surfaces of the opposed side walls (324) that extend radially outwardly to engage and bear against the interior valve housing surface (230) to press the opposed side walls (324) together at the distal tip (328) for sealing, both when a dilator extends through the valve and sheath and afterward upon removal of the dilator.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: January 31, 2012
    Assignee: Medical Components, Inc.
    Inventors: Mark S. Fisher, W. Shaun Wall
  • Patent number: 8105286
    Abstract: An access device places a medical article within a body space of a patient. The device has a needle that includes an elongated body and a needle hub. The device further includes a dilator disposed on and slideable along the elongated body of the needle and a medical article. The medical article is disposed on and slideable along the dilator. A track extends in a proximal direction from the dilator. The needle hub slides along at least a portion of the track between a first position and a second position. The device further includes a locking mechanism operably disposed between the track and the needle hub so as to inhibit further axial movement of the needle in the proximal direction when the needle hub is in the second position.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 31, 2012
    Assignee: Access Scientific, Inc.
    Inventors: Janelle Anderson, Steven F. Bierman, Wei Huang, Richard A. Pluth
  • Patent number: 8074360
    Abstract: A tool for slitting an elongate sheath from about an elongate member that is disposed within a longitudinally extending lumen of the sheath includes a longitudinally extending tail portion projecting rearward of a slitting edge and a nose portion of the tool; a lower surface of the nose portion is disposed beneath the slitting edge for engaging a portion of the elongate member. The tail portion of the tool, approximately aligned with the sheath lumen when the lower surface engages the elongate member and a leading edge of the nose portion is within the sheath lumen, is sized to fit within the sheath lumen after the sheath is slit by the slitting edge. A passageway between the nose portion and the tail portion allows a proximal segment of the elongate member to bend away from the tail portion when the elongate member is engaged by the nose portion.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: December 13, 2011
    Assignee: Medtronic, Inc.
    Inventors: Johnson E. Goode, Ron A. Drake
  • Patent number: 8057428
    Abstract: A balloon dilation catheter comprising a tubular member having a proximal end and a distal end. An inflatable balloon is disposed at the distal end of the tubular member. A first lumen is disposed in the tubular member and in is communication with an interior of the inflatable balloon. A second lumen is disposed in the tubular member for receiving a guidewire substantially along a portion of its length. The second lumen has a first opening in the proximal region of the tubular member and a second opening at the distal region of the tubular member. A first slit is disposed longitudinally in the tubular member and extends along at least a portion of the tubular member, the first slit comprising a first pair of longitudinal edges in a side by side relationship.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 15, 2011
    Assignee: Evysio Medical Devices ULC
    Inventor: Donald R. Ricci
  • Patent number: 8042273
    Abstract: A slitter for slitting a guide catheter is assembled from a handle, a blade assembly coupled to the handle, and a holding mechanism coupled to the handle. The blade assembly includes a shroud for receiving an elongated body of a medical device and a slitting blade having an exposed cutting edge to slit the guide catheter.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: October 25, 2011
    Assignee: Medtronic, Inc.
    Inventors: Ron A. Drake, Stanten C. Spear, Johnson E. Goode, Beth C. Bullemer, Les Stener, Gary R. Fiedler, Kendra Yasger
  • Patent number: 8029481
    Abstract: A catheter enables measuring and approximating its distal end position within the body to facilitate catheter insertion and improve accuracy and control. By wrapping a long infusion catheter with an outer coating, the catheter can be guided into a vein or vessel by pulling on the outer coating and forcing its separation in a Y-shaped separation housing anchored close to the insertion point. Since there is no need for a guidewire or stylet and the outer coating acts as a sterile peel package, the catheter can be placed while infusing and maintain its own closed sterile environment during insertion.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: October 4, 2011
    Inventor: Matthew Dickson Reavill
  • Patent number: 8029473
    Abstract: A medical device is provided including a catheter shaft having a lumen extending therethrough with a splittable wall portion along a side of the lumen, and a tube that extends through at least a portion of the lumen and is configured to provide a patent path of fluid communication.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: October 4, 2011
    Assignee: Cook Medical Technologies LLC
    Inventors: Matthew P. Carter, Maximiliano Soetermans, Thomas Gregory Self, Douglas E. McLaren