Class / Patent application number | Description | Number of patent applications / Date published |
604164130 | Guidewire within flexible body entering conduit | 39 |
20080200879 | COMPOSITE GUIDEWIRE WITH DRAWN AND FILLED TUBE CONSTRUCTION - The present invention is directed to an intracorporeal device, preferably a guidewire, and method for making the device. The guidewire of the present invention is formed, at least in part, of a composite elongate core formed, at least in part, of precipitation hardened material. The elongate core members of the present invention will have an ultimate tensile strength and modulus of elasticity greater than the same for an identically dimensioned elongate member formed from superelastic NITINOL alone. | 08-21-2008 |
20080228145 | GUIDEWIRE INTRODUCER AND SHAPING TOOL - The improved guidewire introducer and shaping tool includes a polymer inner layer and a metal outer layer. A polymer luer hub is provided on a polymer tubing shaft so that the internal taper of the hub has a smooth transition to the inner diameter of the polymer tubing shaft. A metal outer layer is provided over the outer surface of the polymer layer and can be rigidly attached to the hub to provide support and stiffness to the polymer layer. | 09-18-2008 |
20080255518 | MEDICAL GUIDEWIRE - The guidewire provides a core and wire coil construction. The core can be shaped with a generally squared-off distally facing shoulder that forms a platform for a proximal end portion of the wire coil. The wire coil can have a plurality of spaced apart coil turns at its proximal end portion. A bonding agent comprising an adhesive can be used to secure the core to the wire coil proximal end portion. | 10-16-2008 |
20080262432 | SYSTEM AND METHOD FOR MANIPULATING A GUIDEWIRE THROUGH A CATHETER - A system and method for manipulating a guidewire includes a steering tool, a catheter, and a guidewire. The steering tool includes a bore disposed there through. The catheter is disposed within the ore of the steering tool. The guidewire is disposed within a lumen of the catheter such that the catheter is disposed between the steering tool and the guidewire. The steering tool includes a main body and nut. The main body includes a collet portion including circumferentially spaced jaw separated by longitudinally extending slots. The nut is threaded over the collet to close the jaw with sufficient radical pressure to deform the catheter such that the guidewire may be manipulated with the catheter disposed between the guidewire an the steering tool. | 10-23-2008 |
20080312597 | Guide Wire For A Medical Instrument - The invention relates to a guide wire for a medical instrument, which has a guide wire core ( | 12-18-2008 |
20090012475 | MEDICAL GUIDE WIRE - A fixing portion is provided so that the position of a guide wire ( | 01-08-2009 |
20090036833 | COMPOSITE ELONGATE MEDICAL DEVICE INCLUDING DISTAL TUBULAR MEMBER - An intracorporeal device includes a shaft having a proximal section including a first elongate member and a distal section including a tubular member and a second elongate member. A proximal region of the tubular member is attached to the distal region of the first elongate member. The second elongate member is disposed within the lumen of the tubular member, and a proximal region of the second elongate member is attached to the proximal region of the elongate tubular member. As such, in some embodiments, the tubular member can function both as a member joining the first and second elongate members, and as a structural element in the distal section of the shaft providing for desired flexibility, torqueability, and/or pushability characteristics. The lateral flexibility of the tubular member can be increased by including less material in the tubular member, while maintaining a good degree to torqueability and/or pushability characteristics. For example, the tubular member can include a plurality of apertures in it. | 02-05-2009 |
20090036834 | ELONGATE MEDICAL DEVICE HAVING ENHANCED TORQUE AND METHODS THEREOF - An elongate medical device such as a guidewire, that may comprise a first elongate member having a proximal end, a distal end and a lumen there between, a second elongate member having a proximal end and a distal end, the second elongate member at least partially disposed in the first elongate member, a first connection between first elongate member and the second elongate member at the proximal end of the first elongate member, a second connection between the first elongate member and the second elongate member at the distal end of the first elongate member, and a third connection between the first elongate member and the second elongate member, the third connection disposed at a point between the first connection and the second connection, wherein the third connection is substantially at a location selected by the Method for Enhancing the Ratio of Torsional Stiffness to Transverse Flexibility. | 02-05-2009 |
20090043259 | Sphincterotome - A medical sphincterotome and a method of its use are described. The sphincterotome has structural elements that are capable of directing a wire guide through a selected body passageway. One structural element includes a distal port and deflection member that can deflect the wire guide into the desired passageway. Another structural element includes an offset nose-shaped end that can bend towards a passageway desired to be blocked. The wire guide is prevented from entering the blocked passageway, thereby enabling the wire guide to cannulate the desired passageway. The sphincterotome also includes a cutting wire to access a patient's sphincter and perform various other medical procedures. | 02-12-2009 |
20090062739 | Catheter Guidewire Tracking System and Method - Provided in certain embodiments is a tracking system, having a transformer-coupled guidewire system, having a coil comprising a primary winding, configured to enable a guidewire including a secondary winding to be inductively coupled to the primary winding, and configured to enable a catheter to be slid over the guidewire while the secondary winding is inductively coupled to the primary winding. Also provided is a tracking method, including positioning a primary winding about a first coil that is integral to a first end of a guidewire, inductively coupling the primary winding and the first coil, transferring the energy between the first coil and a second coil integral to a second end of the guidewire, passing a catheter over the guidewire, and tracking the guidewire while the catheter is slid over the guidewire. | 03-05-2009 |
20090105653 | GUIDEWIRE STOP - A guidewire stop is disclosed which can be positioned and frictionally locked to a bare guidewire at a user-defined location. The guidewire stop can be used to stop and/or lock a medical device, such as an embolic filter, at a treatment site inside a body lumen. The medical device may be attached to the guidewire stop. | 04-23-2009 |
20090131873 | SYSTEM AND METHOD FOR POSITIONING IMPLANTABLE MEDICAL DEVICES WITHIN CORONARY VEINS - An improved system and method for placing implantable medical devices (IMDs) such as leads within the coronary sinus and branch veins is disclosed. In one embodiment, a slittable delivery sheath and a method of using the sheath are provided. The sheath includes a slittable hub, and a substantially straight body defining an inner lumen. The body comprises a shaft section and a distal section that is distal to, and softer than, the shaft section. A slittable braid extends adjacent to at least a portion of one of the shaft section and the distal section. In one embodiment of the invention, the sheath further includes a transition section that is distal to the shaft section, and proximal to the distal section. The transition section is softer than the shaft section, but stiffer than the distal section. | 05-21-2009 |
20090171294 | Single crystal shape memory alloy devices and methods - Devices and methods of making devices having one or more components made of single crystal shape memory alloy capable of large recoverable distortions, defined herein as “hyperelastic” SMA. Recoverable Strains are as large as 9 percent, and in special circumstances as large as 22 percent. Hyperelastic SMAs exhibit no creep or gradual change during repeated cycling because there are no crystal boundaries. Hyperelastic properties are inherent in the single crystal as formed: no cold work or special heat treatment is necessary. Alloy components are Cu—Al—X where X may be Ni, Fe, Co, Mn. Single crystals are pulled from melt as in the Stepanov method and quenched by rapid cooling to prevent selective precipitation of individual elemental components. Conventional methods of finishing are used: milling, turning, electro-discharge machining, abrasion. Fields of application include aerospace, military, automotive, medical devices, microelectronics, and consumer products. | 07-02-2009 |
20090264826 | Needleless Catheters and Methods for True Lumen Re-Entry in Treatment of Chronic Total Occlusions and Other Disorders - A catheter system comprising a) an elongate flexible catheter; b) a lumen that extends from a proximal insertion port to a side outlet opening; c) a penetrating guidewire insertable into the proximal insertion port and thereafter advanceable through the lumen and out of the side outlet opening; and d) an orientation element useable to provide an indication of the trajectory on which the penetrating guidewire will advance from the catheter body. Also disclosed are methods for using such catheter to direct the penetrating guidewire out of the side opening and into the true lumen of a blood vessel when bypassing an obstruction in the blood vessel such as a chronic total occlusion (CTO) of an artery. | 10-22-2009 |
20090306597 | DEVICE FOR UNBLOCKING AN OCCLUDED VESSEL, AND A METHOD FOR UNBLOCKING AN OCCLUDED VESSEL - A device for unblocking an occlusion ( | 12-10-2009 |
20100049136 | Guide Wire and Method of Use Thereof - The present invention generally relates to a medical device and specifically to a guide wire for reversing the direction of catheterization within a body lumen and to a method of use thereof. In one embodiment, the guide wire includes a first elongated member having a second elongated member attached to the distal end. A spring element joins the distal end of the second elongated member to a third elongated member. The third elongated member is movable between a first position folded upon the second elongated member and a second position extending distally from the second elongated member. | 02-25-2010 |
20100049137 | Device for Crossing Occlusions and Method of Use Thereof - The present invention generally relates to a medical device and specifically to a catheter and wire guide for crossing an occlusion in a body lumen and a method of use thereof. In one embodiment, the catheter includes an incremental positioning mechanism positioned distally of the catheter body. In another embodiment, a lumen containing the wire guide extends through the incremental positioning mechanism and the catheter body. The incremental positioning mechanism allows for adjustment of the axial position of the wire guide relative to the distal end of the catheter body. | 02-25-2010 |
20100130938 | DELIVERY AND EXCHANGE CATHETER FOR STORING GUIDEWIRE - A support catheter for stowing and exchanging guidewires and other working elements comprises a catheter body having a proximal region and a distal region. A single, contiguous lumen is formed from the proximal region through the distal region and has a larger proximal cross-sectional area than distal cross-sectional area. | 05-27-2010 |
20110009827 | ACCESS DEVICE - 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 and a medical article. A track can extend in a proximal direction from the dilator. The needle hub can slide along at least a portion of the track between a first position and a second position. The device can further include 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. The device can further include a guidwire that can bend such that the guidewire can both pass through the needle hub at one end and attach to the needle hub at another end. | 01-13-2011 |
20110098648 | MEDICAL GUIDE WIRE, A METHOD OF MAKING THE SAME, AN ASSEMBLY OF MICROCATHETER AND GUIDING CATHETER COMBINED WITH THE MEDICAL GUIDE WIRE - In a medical guide wire | 04-28-2011 |
20110172604 | HYBRID GUIDEWIRE - A hybrid guidewire, a method for manufacturing the hybrid guidewire including co-extruding a core inside a sheath in bulk, cutting the core and sheath to a desired length, and shaping a distal and proximal portion of the guidewire depending on the desired application. | 07-14-2011 |
20110218496 | ACCESS DEVICE - 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 medical article is disposed over and slideable over the needle. A flash space is provided anywhere between the needle and the outer surface of the medical article. The flash space communicates with a bore of the needle, as well as a variable volume chamber. The variable volume chamber can then draw fluid from the flash space into the chamber. | 09-08-2011 |
20110230840 | GUIDEWIRE HAVING LINEAR CHANGE IN STIFFNESS - The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device. | 09-22-2011 |
20110282286 | Introducer Sheath - An introducer sheath includes a elongated sheath configured to be inserted into a blood vessel. The elongated sheath includes a central lumen configured to allow a surgical implement or medical device to pass therethrough. The introducer sheath also includes a hemostatic valve operatively connected to the sheath. The hemostatic valve is configured to prevent blood in the blood vessel from exiting the introducer sheath assembly when the elongated sheath is located in the blood vessel. The hemostatic valve includes a plurality of seals supported by a housing, including a front seal configured to provide a hemostatic seal with a guide wire, and a rear seal configured to provide a hemostatic seal with a range of sizes of implements and devices. The housing is configured to provide strain recovery for strain induced by displacement forces generated during movement of the implement or medical device through the plurality of seals. | 11-17-2011 |
20120065591 | Facilitation Of Antegrade Insertion Of A Guidewire Into The Superficial Femoral Artery - A guidewire for antegrade guidance of vascular interventions of a lower limb artery via a common femoral artery into a superficial femoral artery of a human patient. When in unloaded condition, the guidewire has, at its distal end, a rounded or floppy tip ( | 03-15-2012 |
20120184911 | ASSEMBLY AND KIT FOR MARKING TUBAL OSTIA - A method, apparatus, and kit for marking the opening between the fallopian tube and the uterus (tubal ostia) are provided. A marking dye provided in a marking assembly including a fluid dispenser coupled to a catheter having an open end and a guide wire. The catheter is inserted into the uterus and to a position adjacent the tubal ostia. When properly inserted, the fluid dispenser is activated to cause fluid to flow through the catheter and to the wall of the uterus to provide a mark. Once the mark is provided, endometrial ablation process can be provided in the uterus. The marks can then be used to guide the insertion of tubal occlusion devices. | 07-19-2012 |
20130035639 | METHOD FOR ACCESS NEEDLE WITH PRE-LOADED WIRE GUIDE AND DEVICE - A medical device is provided, configured to access a target site within a patient body. The device may be provided as a kit including pre-assembled components. Embodiments of the device include an elongate flexible access needle including a needle lumen disposed through at least a longitudinal length of the needle; an elongate wire guide pre-loaded into at least a lengthwise portion of the needle lumen and extending to at least near a distal end of the needle end; and a needle sheath including a longitudinal sheath lumen through which the access needle is disposed; where the distal needle end comprises a piercing tip configured for penetrating tissue to access a target site. A method of use is provided where the needle may be withdrawn over the pre-loaded wire guide after it has been directed to a target site and the sheath as been advanced over the needle's distal end, in a manner freeing the wire guide for further guidance or direction, and for introduction of another device along the wire guide. | 02-07-2013 |
20130123704 | ACCESS DEVICE - 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 and a medical article. A track can extend in a proximal direction from the dilator. The needle hub can slide along at least a portion of the track between a first position and a second position. The device can further include 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. The device can further include a guidewire that can bend such that the guidewire can both pass through the needle hub at one end and attach to the needle hub at another end. | 05-16-2013 |
20130267901 | CATHETERIZATION SYSTEM - The present disclosure relates to catheterization systems and components thereof. In one embodiment of the present disclosure, a catheterization system is disclosed that includes a catheter including a body with proximal and distal ends and defining first and second lumens extending therethrough, and a stylet. The stylet includes first and second stylet portions each having proximal and distal end regions, wherein the distal end regions of the first and second stylet portions together define a tapered penetrating portion. The first and second stylet portions are configured and dimensioned to be slidably positioned within the first and second lumens of the catheter, respectively. The first and second stylet portions extend from the proximal end of the catheter and beyond the distal end of the catheter, and are independently movable in relation to each other to facilitate selective removal of the first stylet portion and/or the second stylet portion from the catheter. | 10-10-2013 |
20130274672 | INFUSION CATHETER ASSEMBLY WITH REDUCED BACKFLOW - Catheters assemblies having structural configurations operable to reduce backflow along the catheter assembly track, and methods of making and using such catheter assemblies. Catheters assemblies in accordance with embodiments of the present invention find use in various applications including the treatment of acute and chronic medical conditions. An exemplary catheter assembly includes, in one illustrative embodiment, a flexible proximal catheter body portion, and a distal portion of a smaller diameter than the body portion. The distal portion includes a sealed distal tip or end and one or more side flow openings to permit flow of therapeutic substance from the catheter along an axis that is different than, e.g., skewed relative to, a longitudinal axis of the distal portion of the catheter assembly. | 10-17-2013 |
20140031752 | Catheter Placement Device and Method - An insertion tool for inserting a catheter into a body of a patient is disclosed. The insertion tool unifies needle insertion, guidewire advancement, and catheter insertion in a single device. In one embodiment, the insertion tool comprises a housing in which at least a portion of the catheter is initially disposed, a hollow needle distally extending from the housing with at least a portion of the catheter pre-disposed over the needle, and a guidewire pre-disposed within the needle. A guidewire advancement assembly is also included for selectively advancing the guidewire distally past a distal end of the needle in preparation for distal advancement of the catheter. In one embodiment a catheter advancement assembly is also included for selectively advancing the catheter into the patient. Each advancement assembly can include a slide or other actuator that enables a user to selectively advance the desired component. | 01-30-2014 |
20140128809 | INTRODUCER ASSEMBLY EXTENSION AND METHOD OF USE - An introducer set includes an introducer and dilator along with an extension in a sealed sterile peal open package. The extension is available for use during procedures where the puncture access site to the patient is close enough to the site to be treated in the patient that the physician's hands and/or head may be positioned in the fluroscopic area while the physician is attempting to maneuver a wire guide to a desired location. When the extension is attached to the introducer, the physician may perform a procedure, such as an antigrade stick in the lower leg of a patient, while maintaining their hands and head outside of the fluroscopic area while direct radiation is being supplied and the wire guide is being maneuvered to a desired treatment location. After the wire guide has been properly positioned and the radiation has been terminated, the extension may be disconnected from the introducer and the remaining portions of the procedure (guide catheter insertion, balloon catheter insertion and dilation, etc.) may proceed in a known manner. The extension need only be in the range of ten to thirty centimeters to allow the physician to work a safe distance from the fluroscopic area undergoing direct radiation. | 05-08-2014 |
20140163471 | MEDICAL GUIDE ELEMENT WITH DIAMETER TRANSITION - Improved medical filaments for use with dilators to be inserted into a patient, for example into the vascular lumen, are provided, as well as combinations of filaments and dilators. Methods for use of such filaments and filament-dilator combinations are also described. The filament includes a proximal segment and a distal segment. The diameter of the distal segment is greater than the diameter of the proximal segment. The change in diameter is abrupt, providing a discrete step transition at a point along the filament which presents a proximally-facing surface on the distal segment. When the proximal segment of the filament is fully inserted into a dilator having a distal tip adapted for insertion into a patient, the dilator distal tip firmly abuts the proximally-facing end surface of the distal segment. The relative dimensions of the dilator tip and the discrete stepped transition of the filament provides full shielding or over shielding of the dilator tip, thereby facilitating passage of the dilator tip along the tissue track, through the puncture hole and into the orifice. | 06-12-2014 |
20140276436 | ASSEMBLY FOR POSITIONING A SECURITY GUIDE NEXT TO AN ACCESS SHEATH - Assembly for positioning an access sheath and a security guide next to the access sheath where the access sheath is adapted to be threaded onto a catheter. The catheter includes a groove extending between an outer hole and an inner hole which groove has a greater width than a width of the security guide. The access sheath includes an opening extending longitudinally from a distal end of the access sheath and is rotatable around the catheter between an open position in which the opening of the access sheath at least partially coincides with the groove of the catheter and enables the release of the security guide, and a closed position in which the access sheath covers the groove of the catheter maintaining the security guide within the groove. | 09-18-2014 |
20140288502 | INTRAVASCULAR CATHETER - This abstract relates to an angiographic, central venous, balloon expansion, peripheral over the needle intravascular catheter, belonging to the field of medical devices comprising the catheter itself, which is inserted into the body, obtained from a suitable material to have a flow proportional to the temperature. | 09-25-2014 |
20140343498 | PARANASAL OSTIUM FINDER DEVICES AND METHODS - Devices and methods for locating sinus ostia and positioning a guide wire within the sinus ostia. The subject devices include a shaft having a distal end, a proximal end, a curved region located between the distal and proximal ends, and an interior channel, an extensible and retractable guide wire movably mounted within the interior channel and a probe tip joined to the guide wire. Certain devices further include expandable portions for engaging and treating body anatomy | 11-20-2014 |
20160015945 | Intravenous Catheter Insertion Device and Method of Use - A catheter insertion device includes a housing, a needle, a guide wire, and a catheter disposed coaxially over the needle. The needle has a proximal end in the housing and a distal end extending from a distal end of the housing in an insertion position. The guide wire has a distal portion disposed in a lumen of the needle in a withdrawn position. The guide wire may include a safety tip having a non-coiled configuration in the withdrawn position and a coiled configuration in an advanced position. The catheter insertion device may include a sliding member attached to the guide wire, wherein movement of the sliding member translates the guide wire from the withdrawn position to the advanced position. | 01-21-2016 |
20160022963 | Intravenous Catheter Insertion And Blood Sample Devices And Method Of Use - A catheter insertion device includes a housing, a needle, a catheter, and a guide wire. The needle has a proximal end positioned in the housing and a distal end extending beyond a distal end of the housing. The catheter is positioned coaxially over the needle, and includes a flexible tube and a catheter hub on a proximal end of the flexible tube. A proximal portion of the flexible tube and the catheter hub are positioned in the housing. the guide wire has a proximal end positioned in the housing and a distal end positioned in a lumen of the needle. The catheter insertion device also includes a handle coupled to the catheter, wherein movement of the handle relative to the housing moves the catheter hub from a position in the housing to a position outside of the housing. | 01-28-2016 |
20160096000 | MICROPUNCTURE VASCULAR ACCESS SET - A vascular access device includes a sheath body defining an outer surface and a lumen extending between a first end of the sheath body and a second end of the sheath body. The sheath body has a length of at most 7 cm. Further, the sheath body has a vessel opening defined through the first end in communication with the lumen and an access opening defined through the second end in communication with the lumen. A plurality of perfusion windows extend between and are open to the lumen and the outer surface of the sheath body, each of the plurality of perfusion windows being located within about 3 cm of the first end of the sheath body. | 04-07-2016 |