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WO2008006111A2 - cathéter de support À lumière unique pour un échange rapide et l'utilisation par fil - Google Patents

cathéter de support À lumière unique pour un échange rapide et l'utilisation par fil Download PDF

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Publication number
WO2008006111A2
WO2008006111A2 PCT/US2007/073072 US2007073072W WO2008006111A2 WO 2008006111 A2 WO2008006111 A2 WO 2008006111A2 US 2007073072 W US2007073072 W US 2007073072W WO 2008006111 A2 WO2008006111 A2 WO 2008006111A2
Authority
WO
WIPO (PCT)
Prior art keywords
guide wire
catheter
distal
proximal
lumen
Prior art date
Application number
PCT/US2007/073072
Other languages
English (en)
Other versions
WO2008006111A3 (fr
Inventor
Kevin D. Taylor
Wade Bowe
Original Assignee
The Spectranetics Corporation
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 The Spectranetics Corporation filed Critical The Spectranetics Corporation
Publication of WO2008006111A2 publication Critical patent/WO2008006111A2/fr
Publication of WO2008006111A3 publication Critical patent/WO2008006111A3/fr

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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • A61M2025/0081—Soft 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
    • A61M2025/0183—Rapid exchange or monorail catheters
    • 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
    • A61M2025/0188—Introducing, guiding, advancing, emplacing or holding catheters having slitted or breakaway lumens
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
    • 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

Definitions

  • the present invention relates to the field of catheters for medical, diagnostic, and/or therapeutic uses.
  • Catheters are used for many clinical purposes.
  • infusion catheters may be used to deliver diagnostic or therapeutic fluids to sites in the vasculature.
  • a balloon catheter may be inserted over a guide wire to an occluded site in order to increase blood flow.
  • a catheter containing optical fibers may be used to view an intravascular site or to deliver laser energy for laser atherectomy, laser ablation, or other purposes.
  • the intravascular catheter is often used in conjunction with a thinner steerable guide wire.
  • the clinician first inserts the guide wire into a blood vessel in a patient's extremity and steers the guide wire through the vasculature to a target site. Then, the clinician inserts the larger catheter over the guide wire and advances the catheter over the guide wire to the target site.
  • This guide wire and catheter combination allows the guide wire to be inserted into place before the catheter, thus making it easier to position the catheter.
  • the guide wire is removed and the clinician proceeds to use the catheter for the desired purpose, whether for infusion, diagnosis, or treatment.
  • the guide wire may be left in place, the catheter treatment may be performed, and the catheter may then be withdrawn and replaced with a different catheter, for example, a laser catheter may be replaced with a balloon catheter to treat an occlusion.
  • OTW catheters are often "over-the- wire” (“OTW") designs.
  • An OTW catheter design is characterized by having a lumen or passageway throughout the entire working length which is adapted for the free movement of a guide wire, which may exit at the catheter's proximal end lying outside of the patient's body.
  • the OTW catheter design allows for infusion of diagnostic media, drugs, and guide wire exchange from the proximal end of the catheter.
  • longer guide wires or guide wire extensions typically 300 cm in length, must be used. The exchange of devices over guide wires of this length is both time consuming and cumbersome.
  • a catheter design that addresses the shortcomings of the OTW catheter is a "monorail” or rapid exchange (“RX”) catheter that uses shorter guide wires, hi such RX designs, the catheter is characterized by having a guide wire passageway that extends within only a comparatively short distal segment of the catheter.
  • the RX catheter's proximal exit port for the guide wire typically lies approximately 20 to 30 cm proximal to the catheter's distal end.
  • These catheters can use shorter guide wires, typically 180 cm long, to remove or exchange catheters.
  • RX catheters are more quickly and easily exchanged.
  • Illustrative designs for RX catheter systems can be found, for example, in U.S. Patent 6,592,549 to Gerdts et al. and U.S. Patent 7,037,293 to Carrillo et al., both of which are incorporated herein by reference.
  • RX catheters may require multiple catheter lumens and may not allow fluid infusion or convenient guide wire exchange.
  • a clinician may insert a short, 180 cm guide wire into the patient's distal extremity and spend considerable time navigating the guide wire to an occlusion of an artery.
  • the clinician decides that a different shape is needed on the tip of the wire.
  • the conventional options to accomplish this task include: (1) pulling the guide wire out of the patient, thus losing the guide wire position, and reshaping and reinserting the guide wire; (2) using an exchange system (e.g., a trapper catheter or a magnet system) to affix the guide wire in the guide catheter, loading and advancing a support catheter to the distal end of the guide wire, pulling the guide wire out and reshaping the tip, then placing the guide wire back into the support catheter and advancing guide wire back to the original position; or (3) if the guide wire is extendible, the clinician could lengthen the short guide wire by docking an extension guide wire to its proximal end, then inserting a support catheter over the guide wire and subsequently withdrawing, reshaping, and reinserting the guide wire through the support catheter.
  • an exchange system e.g., a trapper catheter or a magnet system
  • Embodiments of the present invention include system and methods for providing and using a low profile, single lumen catheter which would retain the guide wire position obtained in the above example, enable rapid exchange of the catheter using a short guide wire, allow the clinician to infuse liquids, and remove and introduce guide wires or other devices without increased procedural time or use of additional ancillary products.
  • Systems and methods are also provided such that the catheter can be removed from a short guide wire when the guide wire initially extends through the full length of the catheter.
  • a low profile, single lumen catheter that includes a distal guide wire port configured for rapid exchange procedures.
  • the distal guide wire port may be blocked using a slidable member to enable fluid infusion and guide wire exchange, particularly when the slidable member is hollow.
  • the catheter may include a longitudinal slit from the distal guide wire port to a proximal guide wire port that permits separation of the guide wire from the catheter as the catheter is removed from the patient. For example, as the proximal portion of the catheter is removed from the patient, a proximal portion of the guide wire may be separated from the catheter by pulling the guide wire from the catheter by way of the slit. This in turn enables removal of the catheter by rapid exchange mode over a short guide wire.
  • the catheter of the present invention may be maneuvered and positioned in a vascular or other area and used in conjunction with a guide wire or other device to provide advantageous maneuverability characteristics. Additionally, other medical, diagnostic, or treatment catheters or other devices may be inserted into the support catheter for use within a patient, including without limitation, infusing liquids into a patient.
  • Embodiments of the invention further provide methods for performing a medical, diagnostic, or therapeutic procedure with a catheter system that enables both OTW and RX modes.
  • FIGS. IA and IB are full and partial views of one embodiment of the invention showing the use of a solid slidable member.
  • FIGS. 2 A and 2B are full and partial views of one embodiment of the invention showing the use of a hollow slidable member with a luer on its proximal end.
  • FIGS. 3A and 3B are full and partial views of one embodiment of the invention showing the use of a hollow slidable member with a luer on its proximal end, with the slidable member advanced to cover the distal guide wire port.
  • FIGS. 4A and 4B are full and partial views of one embodiment of the invention showing a longitudinal slit in the catheter from the distal guide wire port to the proximal guide wire port.
  • FIGS. 5A-5D illustrate an exemplary procedure in accordance with the present invention.
  • Embodiments of the present invention provide a catheter that allows RX use, OTW use, guide wire exchange, infusion through the catheter, and other medical, diagnostic or therapeutic uses.
  • the catheter of the invention has an inner lumen extending through its entire length.
  • a distal guide wire port is provided in the catheter configured for rapid exchange procedures.
  • the distal guide wire port may be blocked using a slidable member received within the catheter to enable fluid infusion and guide wire exchange.
  • the catheter may include a longitudinal slit from the distal guide wire port to a proximal guide wire port that permits removal of a proximal portion of the guide wire from the catheter by way of the slit. When the proximal portion of the guide wire has been removed, only a distal portion of the guide wire remains within the catheter to enable removal of the catheter by rapid exchange mode.
  • one embodiment of the invention provides a support catheter 1 having a proximal end 5 and a distal end 7.
  • Support catheter 1 includes a catheter body 3 having a lumen 9 disposed longitudinally within the body 3.
  • the proximal end 5 of the catheter 1 includes a proximal guide wire port 11.
  • a distal section of the catheter body 3 includes a distal guide wire port 13 (shown in FIG. IB) that opens laterally from the lumen 9.
  • the distal guide wire port 13 permits a guide wire (not shown) to exit the lumen 9.
  • a guide wire may pass through the distal tip 31 of the catheter body 3, through the lumen 9 and out of the catheter body 3 through the distal guide wire port 13.
  • the distal guide wire port 13 is generally located between about 20 cm and 35 cm from the distal tip 31, although it may be disposed at other suitable locations.
  • the proximal end 5 of the catheter 1 may include a luer connector 15 or other member known to those of ordinary skill in the art to allow connection or maneuvering of the catheter.
  • the catheter body 3 extends from the distal portion of the luer connector 15 to the distal end 7 and defines the lumen 9 in conjunction with the luer connector 15 such that the lumen 9 runs the full length of the catheter 1.
  • the luer connector 15 and the catheter body 3 are made from high density polyethylene (“HDPE”) and the luer connector 15 is about 2.5 cm long and connected to a strain relief 2 (about 5 cm long) that connects to catheter body 3.
  • HDPE high density polyethylene
  • the total length of the catheter body 3 is preferably approximately 135 cm, with a proximal portion having an outside diameter from about .028" to .068" and in some cases around 0.045", and an inside diameter from about .014" to .042" and in some cases around .024", and with a distal portion having an outside diameter from about .022" to .060" and in some cases around .029” and an inside diameter from about .012" to .042" and in some cases about .021".
  • a proximal portion of catheter 1 may be constructed via a braided metal wire construction such that it exhibits enough stiffness to introduce the catheter over a guide wire in an RX manner.
  • a braided metal wire construction such that it exhibits enough stiffness to introduce the catheter over a guide wire in an RX manner.
  • stainless steel wire may be braided together with plastic wire to form the proximal portion of catheter 1.
  • the proximal portion of the catheter 1 may be a hypotube that provides stiffness and pushability to the catheter.
  • the hypotube portion may include guidewire port 13 and may be connected to a small-diameter distal portion (e.g., the distal-most 25 cm of the catheter) formed of a plastic material to provide flexibility and low-trauma maneuverability in the patient's body.
  • a small-diameter distal portion e.g., the distal-most 25 cm of the catheter
  • Both the braided metal wire construction and the metal hypotube construction may provide sufficient stiffness and pushability to the catheter 1 such that the use of a separate pushing mandrel (e.g., element 21 described below) may not be needed to introduce the catheter into a patient's body over a guide wire.
  • the proximal portion of the catheter preferably has a stiffness such that a 0.1-0.25 kg force produces a deflection of about 0.10" over a 3cm length of the catheter, whereby the force is applied and the deflection is measured at the center point of the length of catheter tested.
  • the stiffness is preferably such that a force of 0.005- 0.18 kg produces a deflection of about 0.10" over a 2.5cm length of the hypotube.
  • the catheter body 3 includes a tapered portion 16 which is intermediate the strain relief 2 and the most distal end 7 of the catheter.
  • the tapering imparts a less traumatic profile to the distal end of the support catheter 1 when used in the patient.
  • the support catheter 1 exhibits a stiffness profile that progressively decreases from the proximal end 5 to the distal end 7. More particularly, tapered portion 16 of the catheter body may exhibit a stiffness profile that incrementally decreases from portion 17, to portion 18, to portion 19.
  • Portions 17, 18, and 19 may have sequentially smaller outer diameters that produce this stiffness profile.
  • the decrease in diameter may result from continuous tapering of the catheter body from a proximal segment to a more distal segment; from one or more decreases in diameter of consecutive sections of the body; or any combination thereof.
  • the catheter body 3 is comprised of a proximal segment 17 of about .045" OD, tapering about 25 cm from the distal tip to a more distal segment 18 of about .037" OD and about 18 cm long, which tapers to a third more distal segment 19 of about .029" OD and about 7 cm long.
  • Support catheter 1 may also include a slidable member 21 configured to be disposed within lumen 9.
  • the slidable member 21 may be solid (e.g., 21' of FIG. IB) or may include a lumen 22 (e.g., 21" of FIG. 2B).
  • the slidable member 21 is about 120 cm, with an outside diameter from .010" to .040" and in some cases around .022", and may be formed of stainless steel or nitinol.
  • the slidable member 21 is configured such that it may be inserted through the proximal guide wire port 11 into the lumen 9 and advanced to a more distal segment of the catheter body 3.
  • the slidable member 21 may provide a pushability to the catheter, for example, when it is used in the RX mode. As shown in FIG. IA, the proximal end of the slidable member 21 may be configured for use with a handle 25. In one embodiment where the slidable member 21 is solid (e.g., FIG. IB), the solid slidable member 21' can be removed through the proximal guide wire port 11 of the catheter to allow OTW use and guide wire exchange. Pn another embodiment where the slidable member 21 is hollow (e.g., FIG. 2B), the hollow slidable member 21" may be advanced such that member 21" covers and blocks the distal guide wire port 13 (as shown in FIG.
  • hollow slidable member 21" may be connected with a luer 27 or other connector known to those of ordinary skill in the art which may be used to push the slidable member 21 " forward or to pull the member back and out of the catheter 1.
  • the hollow slidable member 21 " may be pulled back to expose the distal guide wire port 13 and re-enable RX mode functionality.
  • hollow slidable member 21" has about .022" ID and about .027" OD.
  • the proximal catheter shaft is about .029" ID and about .047" OD.
  • the catheter 1 includes a longitudinal slit 29 that extends into the lumen 9 from the exterior of the catheter.
  • the slit 29 extends from the proximal guide wire port 11 to the distal guide wire port 13.
  • a guide wire (not shown) is disposed within the lumen 9 and may be removed from the lumen using slit 29 up to the location of distal guide wire port 13.
  • the guide wire will be disposed only within a distal end of the catheter 1 (i.e., the portion between distal tip 31 and port 13) and the catheter can be removed from the guide wire in an RX manner. It should be noted that this removal step can only occur after slidable member 21 has been removed from the catheter 1. Therefore, slit 29 enables RX removal of the catheter 1 from short guide wires when the guide wire was initially disposed within the full length lumen of the catheter.
  • the distal tip 31 of the most distal segment of the catheter is beveled or tapered to give the catheter tip a less traumatic profile, thus enabling the tip to pass through vascular channels more easily.
  • a marker band 33 comprised of a radiopaque material such as platinum-iridium or other suitable material may be disposed near the distal tip 31 of the catheter to aid in fluoroscopic or other visualization of the placement of distal tip 31.
  • a portion 35 of the distal segment may be coated to reduce friction. For example, a lubricous hydrophilic coating or silicone may be applied to portion 35.
  • Embodiments of the invention provide a catheter system that enables the replacement of the catheter or the guide wire at a target site during medical, diagnostic, or therapeutic procedures.
  • the catheter system may be advantageously used to position another catheter or other medical, diagnostic, or therapeutic device for use by a clinician.
  • the catheter system may be used in conjunction with an angioplasty procedure.
  • Such procedures are used to change or widen blood vessels, usually blood vessels narrowed or constricted by the build-up of atherosclerotic plaque.
  • a short (e.g., 180 cm) guide wire 50 is inserted into the vasculature 60 of a patient, often through an extremity, and navigated approximate a target site containing an occlusion 62.
  • guide wire 50 may be positioned just proximal of the occlusion 62, for example, because the guide wire 50 is not adapted for crossing the occlusion 62.
  • the clinician may wish to reshape or replace guide wire 50 so as to successfully cross the occlusion 62. As illustrated in FIG.
  • a support catheter 1 as described above may be inserted into the patient's vasculature 60 over the short guide wire 50 using an RX technique such that distal tip 31 is approximate the distal tip of the guide wire 50. Fluoroscopic or radioscopic imaging may be used to verify alignment or positioning of the guide wire 50 and support catheter 1. As seen in FIG. 5B, guide wire 50 is only within lumen 9 at a distal portion of the catheter 1 and passes out of the lumen 9 at distal guide wire port 13. A hollow slidable member 21 may also be disposed within lumen 9 short of the guide wire port 13.
  • slidable member 21 may be pushed forward to cover the distal guide wire port 13.
  • slidable member 21 may be solid or hollow and may give a pushability to the catheter.
  • slidable member 21 can be used to push distal tip 31 against occlusion 62 in an effort to break or cross the occlusion.
  • slidable member 21 is hollow and includes interior lumen 22.
  • the catheter system may be used to inject fluids to the target site.
  • medication may be delivered to the occlusion 62 to soften or weaken the occlusion.
  • FIG. 5C the catheter system may be used to inject fluids to the target site.
  • medication may be delivered to the occlusion 62 to soften or weaken the occlusion.
  • another short guide wire 50' for example one especially adapted for crossing the occlusion 62, may be inserted through lumen 22 to the target site in an OTW manner.
  • Guide wire 50' may successfully penetrate and cross occlusion 62 such that its distal tip is disposed on a distal side of the occlusion 62.
  • the clinician may wish to remove the support catheter 1 such that it may be replaced with another catheter (e.g., a balloon catheter, an atherectomy catheter, or an imaging catheter) for additional medical, diagnostic, or treatment procedures.
  • another catheter e.g., a balloon catheter, an atherectomy catheter, or an imaging catheter
  • the hollow slidable member 21 is first withdrawn.
  • the proximal portion of guide wire 50' may then be removed from the lumen 9 through slit 29 as the catheter 1 exits outside of the patient, in essence peeling the catheter 1 away from guide wire 50' as the catheter exits the patient.
  • catheter 1 can be removed guide wire 50' in an RX mode, which enables catheter 1 to be removed from the vasculature 60 without extending the proximal end of guide wire 50' or using other additional apparatus or procedures.
  • the support catheter according to the present invention is suitable for other applications in intravascular and other procedures.
  • the support catheter may be used as a conduit for injecting therapeutic or diagnostic fluids.
  • the support catheter may be used as a conduit for exchanging guide wires or for maintaining position at a treatment site while a guide wire is withdrawn.
  • the clinician can remove the guide wire through the support catheter while maintaining position with the support catheter.
  • the guide wire Once the guide wire is reshaped, it can be reinserted into the proximal port of the support catheter and advanced to the treatment site, as indicated above.
  • the support catheter may be used to cross obstructions.
  • a laser guide wire may be inserted into the proximal guide wire port and advanced to the target site. Laser energy is then applied to penetrate the obstruction, and the support catheter and the laser guide wire may be advanced in stepwise fashion. Once the occlusion is passed, the support catheter and/or the laser guide wire can be exchanged for standard angioplasty equipment to complete treatment of the obstruction.
  • Illustrative designs for such systems can be found, for example, in U.S. Patents 5,514,128 and 5,643,251 to Hillsman et al., both of which are incorporated herein by reference.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Des modes de réalisation de la présente invention comprennent des systèmes et des procédés pour fournir et utiliser un cathéter à lumière unique, plat, qui peut être retiré d'un court fil de guidage lorsque le fil de guidage s'étend sur toute la longueur du cathéter. Le cathéter présente un orifice distal de fil de guidage configuré pour des opérations de remplacement rapide. L'orifice distal de fil de guidage peut être bloqué en utilisant un élément coulissant qui permet la perfusion de fluide et le remplacement du fil de guidage. Le cathéter peut comprendre une fente longitudinale entre un orifice distal de fil de guidage et un orifice proximal de fil de guidage qui permet de retirer du cathéter une partie proximale du fil de guidage en passant par la fente afin de permettre de retirer le cathéter par une opération de remplacement rapide.
PCT/US2007/073072 2006-07-07 2007-07-09 cathéter de support À lumière unique pour un échange rapide et l'utilisation par fil WO2008006111A2 (fr)

Applications Claiming Priority (2)

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US81948706P 2006-07-07 2006-07-07
US60/819,487 2006-07-07

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WO2008006111A2 true WO2008006111A2 (fr) 2008-01-10
WO2008006111A3 WO2008006111A3 (fr) 2008-11-13

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US8617192B2 (en) 2006-02-22 2013-12-31 Bradley H. Strauss Guide-wire sleeve for facilitation of lesion crossing
EP2711042A1 (fr) * 2011-05-17 2014-03-26 Terumo Kabushiki Kaisha Tube médical, cathéter et procédé de fabrication de tubes médicaux
US8932315B2 (en) 2010-10-18 2015-01-13 W. L. Gore & Associates, Inc. Systems and methods for percutaneous occlusion crossing
WO2018181178A1 (fr) * 2017-03-29 2018-10-04 テルモ株式会社 Ensemble cathéter
US10799669B2 (en) 2017-01-20 2020-10-13 Route 92 Medical, Inc. Single operator intracranial medical device delivery systems and methods of use
US11020133B2 (en) 2017-01-10 2021-06-01 Route 92 Medical, Inc. Aspiration catheter systems and methods of use
US11065019B1 (en) 2015-02-04 2021-07-20 Route 92 Medical, Inc. Aspiration catheter systems and methods of use
CN114502229A (zh) * 2019-10-15 2022-05-13 美敦力瓦斯科尔勒公司 用于球囊导管型装置的保护装置和方法
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US11871944B2 (en) 2011-08-05 2024-01-16 Route 92 Medical, Inc. Methods and systems for treatment of acute ischemic stroke
US11925770B2 (en) 2018-05-17 2024-03-12 Route 92 Medical, Inc. Aspiration catheter systems and methods of use
US12115320B2 (en) 2013-12-23 2024-10-15 Route 92 Medical, Inc. Methods and systems for treatment of acute ischemic stroke
US12144940B2 (en) 2020-10-09 2024-11-19 Route 92 Medical, Inc. Aspiration catheter systems and methods of use
US12213688B2 (en) 2015-07-24 2025-02-04 Route 92 Medical, Inc. Anchoring delivery system and methods
US12262911B2 (en) 2011-08-05 2025-04-01 Route 92 Medical, Inc. Methods and systems for treatment of acute ischemic stroke
US12295595B2 (en) 2021-05-13 2025-05-13 Route 92 Medical, Inc. Aspiration catheter systems and methods of use

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US7037293B2 (en) * 2002-11-15 2006-05-02 Boston Scientific Scimed, Inc. Rapid exchange catheter with depressable channel

Cited By (30)

* Cited by examiner, † Cited by third party
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