EP1761297A2 - Systeme d'entrainement de catheter - Google Patents

Systeme d'entrainement de catheter

Info

Publication number
EP1761297A2
EP1761297A2 EP05743961A EP05743961A EP1761297A2 EP 1761297 A2 EP1761297 A2 EP 1761297A2 EP 05743961 A EP05743961 A EP 05743961A EP 05743961 A EP05743961 A EP 05743961A EP 1761297 A2 EP1761297 A2 EP 1761297A2
Authority
EP
European Patent Office
Prior art keywords
tube
catheter
optionally
inner tube
balloon
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Withdrawn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
EP05743961A
Other languages
German (de)
English (en)
Other versions
EP1761297A4 (fr
Inventor
Israel Chermoni
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.)
F D Cardio Ltd
Original Assignee
F D Cardio Ltd
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
Priority claimed from PCT/IL2004/000456 external-priority patent/WO2005051224A2/fr
Priority claimed from US10/856,338 external-priority patent/US20050033343A1/en
Application filed by F D Cardio Ltd filed Critical F D Cardio Ltd
Publication of EP1761297A2 publication Critical patent/EP1761297A2/fr
Publication of EP1761297A4 publication Critical patent/EP1761297A4/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Withdrawn legal-status Critical Current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
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1018—Balloon inflating or inflation-control devices
    • A61M25/10181—Means for forcing inflation fluid into the balloon
    • A61M25/10182—Injector syringes
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1018—Balloon inflating or inflation-control devices
    • A61M25/10184—Means for controlling or monitoring inflation or deflation
    • A61M25/10185—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/958—Inflatable balloons for placing stents or stent-grafts
    • A61F2002/9583—Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
    • 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
    • A61M2025/0004—Catheters; Hollow probes having two or more concentrically arranged tubes for forming a concentric catheter system
    • 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
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1056—Balloon catheters with special features or adapted for special applications having guide wire lumens outside the main shaft, i.e. the guide wire lumen is within or on the surface of the balloon

Definitions

  • the tube is folded, to save space.
  • the inner tube is of a flexibility and of a diameter suitable for navigating adult coronary blood vessels, for example, to a length of 100,
  • a wire is rotated to turn a blocking element so that an aperture therein matches a lumen to which pressure is to be applied.
  • An aspect of some embodiments of the invention relates to a catheter in which a tip of the catheter advances and lengthens the catheter thereby. This lengthening is supported by a section of tube that is in a collapsed configuration outside the body, for example, folded axially, wound in a spiral or folded accordion style.
  • the section of tube is adapted to come in contact with blood.
  • the section of tube serves as a lumen for expanding a balloon.
  • the catheter comprises a valve at said balloon for selectively allowing liquid flow into said balloon.
  • said valve is a pressure sensitive valve.
  • said valve is an externally actuated valve.
  • said valve is a stop valve in which a block is retracted from a port to said balloon to allow fluid under pressure to enter the balloon.
  • said valve is a rotating stop valve having at least two configurations, and in which a block is rotated from one configuration to a second one of said configurations to selectively seal or not seal a port to said balloon.
  • said balloon inflation tube is adapted to be stored outside a human body, when the catheter is in use.
  • said tube is stored in an axially collapsed state.
  • the catheter comprises a controller configured to control extension of said one tube.
  • said controller is adapted to extend said tube by a controlled amount.
  • said controller is adapted to extend said tube by setting a pressure level to be achieved in said liquid.
  • said controller is adapted to advance said catheter.
  • said controller is adapted to synchronize a locking of said catheter with inflation of a balloon portion of said catheter.
  • said controller is adapted to retract said tube relative to said catheter.
  • said controller is adapted to synchronize said retraction with advancing of said catheter.
  • the catheter comprises a guiding sheath- surrounding said tubes.
  • a catheter drive system comprising: an inner tube adapted for inserting into a human body; an outer tube configured to slidably and snugly engage said inner tube, outside of a human body; and a pushing mechanism adapted to apply a pushing force to said inner tube less than 100 mm from an end thereof, such that said inner tube can extend at least 200 mm.
  • said inner tube can extend at least 500 mm.
  • said pushing mechanism comprises a hydraulic mechanism.
  • said pushing mechanism comprises a solid body applying direct force to near said distal end.
  • said inner tube mounts outside said outer tube.
  • catheter 200, sheath 112 and/or guide wire 108 are retracted.
  • the retraction may include reversing the pressure at source 208 to cause retraction of tube 202 relative to tube 204.
  • catheter 200 is simply pulled back.
  • catheter 200 is optionally repositioned, for example, by re-advancing tube 202 relative to tube 204.
  • Variations on process There are many techniques of advancing catheters known in the art. Catheter 200 may be used with many of these techniques, optionally with suitable modifications so that the ability of some embodiments ofthe invention to extend a catheter forward, are utilized.
  • a guide wire and a catheter in accordance with the present invention are advanced as a pair.
  • catheter 200 is advanced using a fixed volume technique, in which controller 120 provides a certain increase in the volume of the working fluid, which translates into a certain increase in the volume of lumen 207 and therefore a certain extension of tube 202.
  • a force based technique is used, for example if seal 214 is leaky.
  • controller 120 is used to apply a force, for example gradually or as an impulse, to cause an extension of tube 202. Once a desired extension is achieved (or shortly before, to accommodate response time) the force is stopped.
  • a combined force/position extension technique is used, in which a maximum advance (or a step size) is set by coupling a stop to each of tubes 202 and 204.
  • Catheters in accordance with exemplary embodiments ofthe invention may be made of various materials, including those known in the art of catheter construction, for example, polyethylene, nylon, PBX, Teflon and other plastics, rubbers and latex.
  • Various coatings are optionally provided, for example, silicone or hydrophilic or hydrophobic coatings.
  • a same coating is used on an extending tube both to reduce friction with an enclosing, non- extending tube and to reduce friction or other negative interaction with blood flow and/or blood vessel walls.
  • the catheter, or at least the extending part thereof is made of a softer material than would be useful for pushing a catheter from outside a body.
  • Body 1782 is optionally 300 mm long, to allow extension of tube 1704 by 300 mm. Other lengths may be provided as well.
  • a sheath 1702 is provided, for example, for guiding tube 1704 to near its target location (e.g., to the coronary arteries through the aorta).
  • a coupling element 1794 couples sheath 1702 to hub 1740.
  • a fast release/attach interlock 1792 is provided.
  • element 1794 includes a valve (not shown) to let out leaking working fluid.
  • the point of change in diameter serves as a point at which advancing (or retracting) force is applied to the inner tube, optionally assisting in passing some types of curves and/or blockages.
  • the single diameter tube is advanced manually (e.g., without pushing from its distal tip), for at least part of its length in the body.
  • the inner tube may be provided pre-extended, for example 100 mm, 200 mm or 300 mm.
  • a back section 1488 of gasket 1472 is slotted and cone shaped and a plain ring may be used for limiter 1478.
  • the maximal diameter of gasket 1472 is smaller than an inner diameter of an inner tube 1402 at the area of limiter 1478. If port 1474 is smaller in diameter than lumen 1406, gasket 1472 optionally has a diameter substantially smaller than that of lumen 1406. It should be noted that pulling back or holding a wire 1476 of valve 1470 can be used to prevent advance of inner tube 1404 while a balloon 1418 thereof is inflated. It should be noted that a valve as described herein may be used for other pu ⁇ oses, for example allowing selective sampling of blood and/or blood pressure in the body, or injection of pharmaceuticals or contrast agents.
  • one or more of the following tests are applied during or after manufacture, to some or all ofthe catheters: (a) determination if movement profile (e.g., in response to force and/or volume) is uniform; (b) detecting leaks; and (c) measuring friction (static and/or dynamic), at one or more locations along the catheter.
  • some testing is done outside the body before use, for example making sure that the catheter works (e.g., test extending), checking for leaks and/or familiarizing a physician with the catheters.
  • a priming step is optionally performed in which fluid is dripped into the catheter, while the hub is held up and the balloon is down.
  • vibration is used to reduce air bubbles.
  • the catheter is stored in vacuum.

Landscapes

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

Abstract

La présente invention concerne un système d'entraînement de cathéter comprenant un tube interne conçu pour être inséré dans un corps humain, un tube externe conçu pour s'engager dans le tube interne selon un ajustement serré en coulissant et situé à l'extérieur du corps humain, ainsi qu'un mécanisme de poussée qui est conçu pour appliquer une force de poussée sur le tube interne inférieure à 100 mm depuis une extrémité de celui-ci, de manière que le tube interne puisse s'étendre sur au moins 200 mm.
EP05743961A 2004-05-27 2005-05-25 Systeme d'entrainement de catheter Withdrawn EP1761297A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/IL2004/000456 WO2005051224A2 (fr) 2003-11-25 2004-05-27 Positionnement de prothese endovasculaire au moyen d'un tube de gonflage
US10/856,338 US20050033343A1 (en) 2002-11-25 2004-05-27 Catheter drive
PCT/IL2005/000535 WO2005115524A2 (fr) 2003-11-25 2005-05-25 Systeme d'entrainement de catheter

Publications (2)

Publication Number Publication Date
EP1761297A2 true EP1761297A2 (fr) 2007-03-14
EP1761297A4 EP1761297A4 (fr) 2007-09-12

Family

ID=37696232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05743961A Withdrawn EP1761297A4 (fr) 2004-05-27 2005-05-25 Systeme d'entrainement de catheter

Country Status (4)

Country Link
EP (1) EP1761297A4 (fr)
JP (1) JP2008500090A (fr)
CA (1) CA2568686A1 (fr)
WO (1) WO2005115524A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9408733B2 (en) 2009-12-30 2016-08-09 Michael Devon Amos Rotatable connection between a tubular member and an elongate wire of a catheter
WO2013121811A1 (fr) * 2012-02-15 2013-08-22 テルモ株式会社 Système de pose d'endoprothèse
CH707319A1 (de) 2012-12-11 2014-06-13 Carag Ag Stentapplikator.
US10080875B2 (en) * 2015-12-01 2018-09-25 Medtronic Vascular, Inc. Handle component for providing a pressurized material
US10500372B2 (en) 2017-08-02 2019-12-10 Farshad Malekmehr Guidewire

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2267800A1 (en) * 1974-04-17 1975-11-14 Anvar Catheter insertion system - uses auxiliary fluid injected in catheter and forming propulsion jets
US5458573A (en) * 1992-05-01 1995-10-17 American Biomed, Inc. Everting toposcopic dilation catheter
US5817101A (en) * 1997-03-13 1998-10-06 Schneider (Usa) Inc Fluid actuated stent delivery system
US5989263A (en) * 1998-03-11 1999-11-23 Arteria Medical Science L.L.C. Hydraulically actuated dilatation mechanism for vessel dilatation and vascular prosthesis delivery and methods of use
JP2004049584A (ja) * 2002-07-22 2004-02-19 Piolax Medical Device:Kk 血管の治療具

Also Published As

Publication number Publication date
WO2005115524A3 (fr) 2007-03-01
WO2005115524A2 (fr) 2005-12-08
EP1761297A4 (fr) 2007-09-12
JP2008500090A (ja) 2008-01-10
CA2568686A1 (fr) 2005-12-08

Similar Documents

Publication Publication Date Title
EP1565227B1 (fr) Commande de catheter
US12186509B2 (en) Intravascular delivery system and method for percutaneous coronary intervention
JP2006513741A5 (fr)
JP5329238B2 (ja) 同軸状のｐｔａバルーン
US11273294B2 (en) Balloon catheter assembly for insertion and positioning therapeutic devices within a vascular system
US20070282302A1 (en) Stent Positioning Using Inflation Tube
EP3888732A1 (fr) Dispositifs de blocage d'écoulement pendant des échanges de dispositifs
CA2207211A1 (fr) Dispositif de dilatation vasculaire et procede
WO2004004801A2 (fr) Catheter a ballonnet a extremite distale expansible
US7637933B2 (en) Method for preparing and employing an implant delivery apparatus
US20170197063A1 (en) Balloon Inside a Guide Catheter
EP1761297A2 (fr) Systeme d'entrainement de catheter
US7682371B2 (en) Device with actuatable fluid-column occluder for prevention of embolization
HK1079467B (en) Catheter drive
CA2565659C (fr) Dispositif d'introduction d'implant

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAK Availability of information related to the publication of the international search report

Free format text: ORIGINAL CODE: 0009015

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20070814

RIC1 Information provided on ipc code assigned before grant

Ipc: A61M 25/00 20060101ALN20070808BHEP

Ipc: A61M 29/00 20060101ALI20070808BHEP

Ipc: A61M 25/01 20060101AFI20070808BHEP

17P Request for examination filed

Effective date: 20070903

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20071005

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1102113

Country of ref document: HK

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080416

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1102113

Country of ref document: HK