EP2981322A1 - Fil-guide d'ancrage et procédés d'utilisation - Google Patents

Fil-guide d'ancrage et procédés d'utilisation

Info

Publication number
EP2981322A1
EP2981322A1 EP14726466.7A EP14726466A EP2981322A1 EP 2981322 A1 EP2981322 A1 EP 2981322A1 EP 14726466 A EP14726466 A EP 14726466A EP 2981322 A1 EP2981322 A1 EP 2981322A1
Authority
EP
European Patent Office
Prior art keywords
anchoring
guidewire
core
basket
compressed state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14726466.7A
Other languages
German (de)
English (en)
Inventor
Patrick K. KELLY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanford Health
Original Assignee
Sanford Health
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanford Health filed Critical Sanford Health
Publication of EP2981322A1 publication Critical patent/EP2981322A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09008—Guide wires having a balloon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09125—Device for locking a guide wire in a fixed position with respect to the catheter or the human body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09175—Guide wires having specific characteristics at the distal tip
    • A61M2025/09183—Guide wires having specific characteristics at the distal tip having tools at the distal tip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices

Definitions

  • Guidewires may be utilized to direct medical devices into a desired target vessel for intervention.
  • Conventional guidewire methods and devices may include a steerable guidewire that is not anchored in any way.
  • the stiff device may work to straighten the guide wire as the device is advanced over the curved portion of the guide wire and the steerable guidewire may often slip back out of the target vessel making it difficult to use the steerable guidewire as a coaxial rail to guide a device into the appropriate vessel.
  • the present invention is directed to methods and apparatus that may include an anchoring basket to anchor a guidewire to vasculature prior to graft deployment. These features may thereby improve the ease by which stent grafts can be placed in branched vessels and increase the speed and success of complex cases, while at the same time lowering the chance for complications.
  • Anchoring the guidewire to the subject's vasculature may have a stabilizing effect for the tip of the catheter and afford greater stability and confidence for the operator.
  • Once the anchoring basket is deployed it may be locked in place, securing the basket and may beneficially allow blood to continue to flow through the basket and downstream.
  • the guidewire Once anchored, the guidewire may be used as a common coaxial rail for improved delivery of treatment devices such as bare metal stents, covered stents, and other over-the-wire devices.
  • the present invention provides an anchoring guidewire comprising: (a) an outer core, (b) an anchoring basket, (c) a steerable tip, and (d) an actuator core, where the outer core, the anchoring basket and the steerable tip are axially aligned with one another, and where the actuator core is movably disposed within both the outer core and the anchoring basket, and where the actuator core is coupled to the steerable tip.
  • the invention may provide that the anchoring basket comprises a plurality of strips defined in the outer core adjacent to the steerable tip, where the plurality of strips are substantially straight in a first neutral state and bow out in a radial direction in a second compressed state.
  • the invention may provide that the anchoring basket comprises a plurality of wires each with a proximal end and a distal end, where each proximal end of the plurality of wires is attached to a first holder and each distal end of the plurality of wires is attached to a second holder, where the plurality of wires are substantially straight in a first neutral state and bow out in a radial direction in a second compressed state.
  • the present invention also provides a method for deploying an anchoring guidewire, the method comprising: (a) introducing the anchoring guidewire according to the first aspect of the invention into an arterial configuration, (b) placing the actuator core under tension and causing the steerable tip to advance towards the outer core, and (c) moving the anchoring basket from a first neutral state to a second compressed state.
  • Figure 1A is a side view of the anchoring guidewire in a neutral state, in accordance with one embodiment of the invention.
  • Figure IB is a side view of the anchoring guidewire in a compressed state, in accordance with one embodiment of the invention.
  • Figure 2A is a side view of a locking mechanism in a neutral state, in accordance with one embodiment of the invention.
  • Figure 2B is a side view of a locking mechanism in a compressed state, in accordance with one embodiment of the invention.
  • Figure 2C is a side view of a locking mechanism in a locked state, in accordance with one embodiment of the invention.
  • Figure 3 is a flow chart depicting functions that can be carried out in accordance with example embodiment of the disclosed methods.
  • the present invention may take the form of an anchoring guidewire 100 comprising: (a) an outer core 102, (b) an anchoring basket 104, (c) a steerable tip 106, and (d) an actuator core 108.
  • the outer core 102, the anchoring basket 104 and the steerable tip 106 may be axially aligned with one another.
  • the actuator core 108 may be movably disposed within both the outer core 102 and the anchoring basket 104 and may be coupled to the steerable tip 106.
  • the total length of the anchoring guidewire 100 may range from about 120 mm to about 10,000 mm.
  • the outer core 102 may be made of, for example, polyurethane, a polyurethane with tungsten, gold, nitinol, platinum, stainless steel, stainless steel with nickel, tungsten or any other suitable material.
  • the outer core 102 may have a diameter in the range from about 0.25 mm to about 1 mm, and preferably in the range from about 0.254 mm to about 0.9652 mm.
  • a plurality of radiopaque markers may be disposed on the outer core 102.
  • This plurality of radiopaque markers may be arranged such that the plurality of radiopaque makers are spaced apart by 1 cm, for example, starting at the proximal end of the anchoring basket 104 and moving in a proximal direction in a range up to about 20 mm along the outer core 102.
  • the anchoring basket 104 may include a plurality of strips defined in the outer core 102 adjacent to the steerable tip 106. These strips may be created by laser cutting the outer core 102. The strips may be substantially straight in a first neutral state (as shown in Figure 1A) and may bow out in a radial direction in a second compressed state (as shown in Figure IB).
  • the anchoring basket 104 may include a plurality of wires each with a proximal end and a distal end.
  • This plurality of wires may be made of, for example, nitinol, titanium, titanium alloys, various plastics or any other suitable material.
  • each proximal end of the plurality of wires may be attached to a first holder 110 and each distal end of the plurality of wires may be attached to a second holder 112.
  • the plurality of wires may be coupled directly to the outer core 102 and to the steerable tip 106.
  • the plurality of wires may be substantially straight in a first neutral state (as shown in Figure 1A) and bow out in a radial direction in a second compressed state as the first holder 110 and second holder 1 12 are moved closer to one another (as shown in Figure IB).
  • the anchoring basket 104 may have a diameter in the second compressed state ranging from about 3 mm to about 70 mm.
  • the first holder 1 10 may be in mechanical communication with the outer core 102 and the second holder 112 may be in mechanical communication with the steerable tip 106.
  • the outer core 102 may be physically coupled to the first holder 110 and the steerable tip 106 may likewise be physically coupled to the second holder 112.
  • the actuator core 108 may be movably disposed within the outer core 102 and extend through the anchoring basket 104 such that the actuator core 108 may be coupled to the steerable tip 106 and/or the second holder 1 12. In operation, the actuator core 108 may cause the anchoring basket 104 to move between the first neutral state and the second compressed state.
  • Figure 1A illustrates the first neutral state of the anchoring guidewire 100
  • Figure IB illustrates the second compressed state of the anchoring guidewire 100.
  • the actuator core 108 may be positioned to allow it to cause the steerable tip 206 to advance towards the outer core 102 until the anchoring basket 104 is in the second compressed state.
  • the actuator core 108 may be positioned to allow it to cause the second holder 1 12 to advance towards the first holder 110 until the anchoring basket 104 is in the second compressed state.
  • Figures 2A-2C illustrate an example locking mechanism in accordance with one embodiment of the invention.
  • the actuator core 108 may be in physical communication with a releasable locking mechanism to hold the anchoring basket 104 in the second compressed state.
  • the releasable locking mechanism may include a raised element or protrusion 114 coupled to the actuator core 108.
  • the raised element or protrusion 114 may be configured to fit within a slot 1 16 in the outer core 102.
  • the actuator core 108 and thereby the raised element 114 may be pulled in a proximal direction relative to the outer core 102, then rotated such that an interference fit (shown in Figure 2C) with the outer core 102 prevents the raised element 114 from moving distally.
  • the actuator core 108 may be locked in position and hold the anchoring basket 104 in the second compressed state.
  • the wires 105 are spring-loaded such that they seek to return to the first neutral state.
  • the second holder 112 is positioned to allow it to cause the steerable tip 106 to advance away from the outer core 102 until the first neutral state is achieved.
  • the actuator core 108 may have a stiffness such that the actuator core 108 may be capable of both pushing and pulling the steerable tip 106.
  • the actuator core 108 and/or the spring force in the plurality of wires may cause the wire anchor basket 104 to return to the first neutral state.
  • the steerable tip 106 may have various stiffness and thickness to account for different use cases.
  • the steerable tip 106 may be thinner and/or less stiff in a case where the anchoring guidewire 100 must navigate a tight turn to advance to the target vessel.
  • the steerable tip 106 may be thicker and/or stiffer in a case where the target vessel is less delicate and there is a more direct route to the target vessel.
  • the steerable tip 206 may have a length in the range from about 5 mm to about 200 mm.
  • Figure 3 is a simplified flow chart illustrating a method according to an exemplary embodiment. Although the blocks are illustrated in a sequential order, these blocks may also be performed in parallel, and/or in a different order than those described herein. Also, the various blocks may be combined into fewer blocks, divided into additional blocks, and/or removed based upon the desired implementation.
  • the method involves introducing the anchoring guidewire according to any one of the foregoing embodiments into any appropriate arterial configuration, including a synthetic lumen.
  • the method involves placing the actuator core under tension and causing the steerable tip to advance towards the outer core.
  • the method involves moving the anchoring basket from a first neutral state to a second compressed state.
  • the method involves locking the actuator core in place to hold the anchoring basket in the second compressed state.
  • the actuator core may be locked in place using the example locking mechanism described above in relation to Figures 2A-2C, or through some other locking mechanism.
  • the method may further include the step of unlocking the actuator core.
  • the method may further include removing tension from the actuator core and moving the anchoring basket from the second compressed state to the first neutral state.

Abstract

L'invention concerne un fil-guide d'ancrage et des procédés d'utilisation, le fil-guide d'ancrage comprenant : (a) un noyau externe, (b) un panier d'ancrage, (c) une pointe orientable et (d) un noyau d'actionneur. Le noyau externe, le panier d'ancrage et la pointe orientable sont alignés axialement les uns avec les autres. En outre, le noyau d'actionneur peut être disposé de façon mobile à la fois dans le noyau externe et le panier d'ancrage, et peut être couplé à la pointe orientable.
EP14726466.7A 2013-04-05 2014-04-04 Fil-guide d'ancrage et procédés d'utilisation Withdrawn EP2981322A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361809134P 2013-04-05 2013-04-05
PCT/US2014/032968 WO2014165754A1 (fr) 2013-04-05 2014-04-04 Fil-guide d'ancrage et procédés d'utilisation

Publications (1)

Publication Number Publication Date
EP2981322A1 true EP2981322A1 (fr) 2016-02-10

Family

ID=50819956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14726466.7A Withdrawn EP2981322A1 (fr) 2013-04-05 2014-04-04 Fil-guide d'ancrage et procédés d'utilisation

Country Status (8)

Country Link
EP (1) EP2981322A1 (fr)
JP (1) JP2016518175A (fr)
KR (1) KR20160005673A (fr)
CN (1) CN105263559A (fr)
AU (1) AU2014248072A1 (fr)
BR (1) BR112015019491A2 (fr)
CA (1) CA2901190C (fr)
WO (1) WO2014165754A1 (fr)

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EP3998100A1 (fr) 2014-01-15 2022-05-18 Tufts Medical Center, Inc. Système dérivation de liquide cérébro-spinal endovasculaire
CA2940000A1 (fr) * 2014-02-17 2015-08-20 Clearstream Technologies Limited Fil-guide ancre avec reperes pour faciliter l'alignement
EP3212275B1 (fr) 2014-10-31 2020-08-05 Cerevasc, LLC Système de traitement de l'hydrocéphalie
US9682216B2 (en) 2014-12-05 2017-06-20 Anchor Endovascular, Inc. Anchor device for use with catheters
JP6820612B2 (ja) 2015-10-30 2021-01-27 セレバスク，インコーポレイテッド 水頭症の治療システムおよび方法
WO2017081681A1 (fr) * 2015-11-09 2017-05-18 Nlt Spine Ltd. Fil-guide rigide avec configuration d'ancrage
US11589884B2 (en) 2017-04-28 2023-02-28 W. L. Gore & Associates, Inc. Endoscopic transluminal stent access and delivery system
WO2019173784A1 (fr) 2018-03-08 2019-09-12 Cerevasc, Llc Systèmes et procédés pour une administration de médicament minimalement invasive à un espace sous-arachnoïdien
CN109877257B (zh) * 2019-03-12 2020-10-16 佛山市迪华科技有限公司 水滴形网篮定型模具及成型方法
WO2023057515A1 (fr) 2021-10-05 2023-04-13 Speira Gmbh Compartiment d'élément de batterie constitué de bande d'alliage d'aluminium à haute teneur en recyclage

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US6500204B1 (en) * 1998-09-08 2002-12-31 Kabushikikaisha Igaki Iryo Sekkei Stent for vessels
US6355051B1 (en) * 1999-03-04 2002-03-12 Bioguide Consulting, Inc. Guidewire filter device
US6544231B1 (en) * 2000-05-22 2003-04-08 Medcanica, Inc. Catch, stop and marker assembly for a medical instrument and medical instrument incorporating the same
JP4731471B2 (ja) * 2003-04-16 2011-07-27 ジェネシス・テクノロジーズ・エルエルシー 医療機器と方法
WO2004093966A1 (fr) * 2003-04-16 2004-11-04 Genesis Technologies Llc. Dispositif medical et procede
US7776062B2 (en) * 2003-10-27 2010-08-17 Besselink Petrus A Self-activating endoluminal device
US7056286B2 (en) * 2003-11-12 2006-06-06 Adrian Ravenscroft Medical device anchor and delivery system
CN200973909Y (zh) * 2006-12-08 2007-11-14 李楚森 一种心脏介入导丝
US20080262590A1 (en) * 2007-04-19 2008-10-23 Medtronic Vascular, Inc. Delivery System for Stent-Graft
US20080281228A1 (en) * 2007-04-23 2008-11-13 Juan Carlos Parodi Guidewire with adjustable stiffness
US20100268029A1 (en) * 2009-04-21 2010-10-21 Xlumena, Inc. Methods and apparatus for advancing a device from one body lumen to another
EP2260898A1 (fr) * 2009-06-10 2010-12-15 Ulrich Schäfer Guide-fil et son procédé d'utilisation

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Also Published As

Publication number Publication date
CA2901190C (fr) 2018-06-19
CA2901190A1 (fr) 2014-10-09
KR20160005673A (ko) 2016-01-15
BR112015019491A2 (pt) 2017-07-18
JP2016518175A (ja) 2016-06-23
WO2014165754A1 (fr) 2014-10-09
CN105263559A (zh) 2016-01-20
AU2014248072A1 (en) 2015-07-30

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