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WO2003053507A1 - Ensemble catheter a ballonnet raccorde - Google Patents

Ensemble catheter a ballonnet raccorde Download PDF

Info

Publication number
WO2003053507A1
WO2003053507A1 PCT/EP2002/014658 EP0214658W WO03053507A1 WO 2003053507 A1 WO2003053507 A1 WO 2003053507A1 EP 0214658 W EP0214658 W EP 0214658W WO 03053507 A1 WO03053507 A1 WO 03053507A1
Authority
WO
WIPO (PCT)
Prior art keywords
balloons
catheter assembly
balloon catheter
balloon
stent
Prior art date
Application number
PCT/EP2002/014658
Other languages
English (en)
Inventor
Imad Sheiban
Machiel Van Der Leest
Original Assignee
Imad Sheiban
Machiel Van Der Leest
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 Imad Sheiban, Machiel Van Der Leest filed Critical Imad Sheiban
Priority to AU2002366745A priority Critical patent/AU2002366745A1/en
Publication of WO2003053507A1 publication Critical patent/WO2003053507A1/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
    • A61M25/10—Balloon catheters
    • A61M25/104—Balloon catheters used for angioplasty
    • 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
    • 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
    • A61M2025/1045—Balloon catheters with special features or adapted for special applications for treating bifurcations, e.g. balloons in y-configuration, separate balloons or special features of the catheter for treating bifurcations

Definitions

  • This invention relates to a balloon catheter assembly and to a method of fabricating such an assembly.
  • Balloon catheters are used in the treatment of various anatomical ducts in the body, such as blood vessels, the urinary ducts, or digestive ducts. A particular application is in the treatment of blood vessels exhibiting stenosis.
  • the conventional balloon catheter comprises a catheter delivery tube on the distal end of which is mounted a balloon of flexible material.
  • the balloon is moved along blood vessels within the body to the site of the lesion and, when correctly positioned, is inflated, usually by means of fluid pressure supplied along the hollow interior of the catheter delivery tube.
  • the balloon inflates it expands against the vessel wall and thus applies outwards pressure to the wall tending to enlarge the vessel's lumen to remove or reduce the effect of a partly blocked vessel.
  • the pressure is released, and the balloon deflates and is removed, leaving the vessel in its enlarged state.
  • a stent may optionally be carried by the balloon and left in place when the balloon is removed in order to act as a reinforcement for the vessel wall, thus maintaining the enlarged state of the lumen.
  • the present invention is directed particularly at the treatment of bifurcated vessels, these usually comprising a main branch and a side branch, and wherein treatment is necessary in both branches and/or possibly at the bifurcation itself.
  • treatment of such vessels would usually be carried out with two separate balloon catheters using a technique known as the kissing balloon technique and described, for example, in US Patent No. 4,896,670 and in WO 00/27307.
  • Other techniques for example using a stent ' to initially dilate the main branch of the vessel, may also be used.
  • the present invention seeks to provide an improved balloon catheter assembly for the treatment of bifurcated vessels, which it is hoped will reduce intervention time and enhance the safety of the surgical procedure.
  • a balloon catheter assembly comprising a catheter delivery tube which is branched at its distal end into at least two branch delivery tubes and wherein each of said branch delivery tubes carries a balloon mounted thereon.
  • each balloon is mounted at the distal end of the respective branch delivery tube.
  • the two balloons are moved simultaneously to the area to be treated.
  • one or more guide wires may be used, as will be explained in more detail below, and the balloons themselves are generally brought together so as to present the minimum cross sectional area for the journey to the treatment site.
  • the balloons may each be positioned at the same distance from the branch along their respective branch delivery tubes so that the balloons are essentially in parallel with one another. Typically the distance between the branch and the proximal ends of the balloons will be between 5 mm and 50 mm. Alternatively the balloons may be positioned such that they are positionally stepped in relation to one another.
  • the balloons may be the same, or different; that is, the physical characteristics of the two balloons such as balloon material, dimensions (diameter, length) and general construction, may be the same as between the two balloons, or they may be different. For example the diameter and length may be different to suit particular circumstances.
  • the two balloons may have a different compliance so as to give them different inflation characteristics; this might be desirable where, for example, a layer of plaque on one of the branches of the vessel to be treated has to be broken, this requiring an excess fluid pressure to be applied to the balloon in the branch concerned. If such an increased pressure were also to be applied to the other balloon, then that balloon might become over-inflated and cause damage to the vessel wall.
  • Variation of compliance can be achieved either by suitable selection of the material of the balloon, or by changing the thickness and other physical characteristics of the balloon, or a combination of both.
  • the distal end of one of the balloons extends beyond that of the other so that, as the catheter assembly is moved towards the treatment site, the distal end of one of the balloons extends beyond that of the other.
  • This can be achieved by appropriate positioning of the balloons on their respective branch delivery tubes, or by appropriate sizing of the balloons, or both.
  • each of the balloons is formed with a narrow distal end, one of which is longer than the other or others so that the distal tip of the corresponding balloon extends beyond the other or others. This elongated distal end may be rounded at the tip to smooth the passage of the catheter assembly to the treatment site, and to allow positioning of the balloon once there.
  • At least one of the balloons may be provided with a radio opaque marker positioned at a known position, for example the middle of the balloon, to indicate to the surgeon the start of the bifurcation in the vessel being treated.
  • the catheter delivery tube is hollow to provide for inflation of the balloons from an appropriate fitting at its proximal end.
  • the hollow interior of the tube may simply divide into the branch delivery tubes so that the respective balloons may be simultaneously expanded by fluid pressure applied along the catheter delivery tube in the known manner and into the branch delivery tubes.
  • the hollow interior of the catheter delivery tube may be divided into two or more independent lumens each of which, at the branch, communicates with a respective one of the branch delivery tubes.
  • each balloon may be inflated independently of the other, and not necessarily at the same time.
  • a guide wire is generally used to guide a balloon catheter to the treatment site.
  • the balloon catheter assembly of the present invention can also use one or more guide wires for this purpose.
  • Various configurations can be used, for example both balloons over-the- wire or one balloon over-the-wire, the other monorail.
  • the guide wire may extend from a fitting at the proximal end of the catheter delivery tube, or may be introduced at some intermediate position, as is well known. In the latter case, the guide wire may be introduced into the catheter delivery tube at an intermediate position proximal of the branch, or may be introduced into one or both of the branch delivery tubes at some position between the branch and the respective balloon.
  • a guide wire within one of the balloons; preferably such a pre-mounted guide wire has a tip which is larger than the guide wire lumen in order to prevent the guide wire from retracting into the lumen.
  • this tip is rounded or has a higher distal profile and, if fitted on a balloon which extends beyond the other or others, can act as a rounded balloon tip to assist movement of the catheter assembly to the treatment site, as mentioned above.
  • the pre-mounted guide wire is preferably fixed on the exterior of the catheter delivery tube for packing and transportation purposes, for example by means of silicone O-rings.
  • the guide wire Once it enters the catheter, whether at the proximal end or at an intermediate position, the guide wire is located in a lumen within the catheter. This lumen may be formed by the passageway through which pressurised fluid is passed to inflate the balloons, or may be a dedicated lumen.
  • a balloon catheter assembly comprising at least two balloons mounted on a stent of the type comprising a plurality of linked cylindrical elements, and wherein at least one of the elements at the proximal end of the stent is adapted to receive and encircle all of said balloons whilst the remaining elements are adapted to receive some, but not all, of said balloons.
  • the two balloons may be separate balloons, or may be realised by the separate arms of a bifurcated balloon - as is well known a bifurcated balloon may comprise a common part and two or more arms extending therefrom.
  • the catheter assembly may be of any suitable type comprising multiple balloons, for example the bifurcated type mentioned above.
  • the catheter assembly is constructed in accordance with the first aspect of the invention, in which separate balloons are each mounted on a respective branch delivery tube which has itself branched from a common catheter delivery tube.
  • the stent comprises a plurality of individual, longitudinally aligned, cylindrical elements. Such stents use one or more linking members to link together the adjacent cylindrical elements so that the stent as a whole takes up a generally tubular configuration.
  • a stent of this type is described, for example, in international patent application No. WO98/58600.
  • a stent of this type which uses just a single linking member between each pair of adjacent cylindrical elements is particularly suitable, and such a stent is described in GB-A-2369062.
  • the stent is arranged so that some of the cylindrical elements encircle both balloons whilst the remaining cylindrical elements encircle just one of the balloons.
  • a standard stent is subjected to a pre-crimping operation such as to leave some of the cylindrical elements at the proximal end of a larger diameter than the remainder. This may be achieved either by crimping the cylindrical elements at the proximal end to a lesser extent to those at the distal end, or by leaving the cylindrical elements at the proximal end un- crimped, and crimping only the distal cylindrical elements to make them of smaller diameter.
  • a balloon catheter assembly comprising two balloons is mounted on the pre-crimped stent in such a way that the larger diameter proximal end encloses both balloons, whilst the smaller diameter distal end encloses just one of the balloons.
  • the stent is then subjected to a further crimping operation intended to bring both the distal and proximal parts of the stent down to a size which causes them to securely retain the mounted balloon assembly, taking into account the fact that the bulk of the assembly within the stent at its proximal end is greater than at its distal end. This will be explained in more detail below.
  • FIGS 1 to 3 each illustrate diagrammatically an embodiment of the first aspect of the invention
  • Figure 4 illustrates diagrammatically the catheter assembly of Figures 1 to 3 mounted on a stent in accordance with the second aspect of the invention
  • Figure 5 is a perspective view of the catheter assembly and stent shown in Figure 4.
  • Figure 6 illustrates diagrammatically a typical sequence of steps which may be used to fabricate the stent assembly according to the second aspect of the invention.
  • FIG. 1 there is shown a balloon catheter assembly constructed in accordance with the invention.
  • the assembly comprises a catheter delivery tube 1 having, at its proximal end, a conventional fitting, represented diagrammatically under reference 2.
  • the tube branches to form two branch delivery tubes 4,5 which may or may not be the same cross sectional shape as the main delivery tube 1.
  • Mounted on each of the branch delivery tubes 4,5 is a respective inflatable balloon 6,7.
  • the balloons are shown in a part-inflated state.
  • each of the balloons is capable of being inflated by means of fluid pressure supplied via lumens in the main delivery tube and the respective branch delivery tube using techniques which are well known.
  • the exact arrangement of these lumens will depend upon the balloon inflation requirements. If the balloons are to be inflated simultaneously, then fluid pressure for this purpose can be supplied by a single lumen formed in the main delivery tube 1 , which branches into respective lumens formed in the branch delivery tubes 4,5. If independent balloon inflation is required, separate lumens will have to be provided in the main delivery tube 1 , which separate lumens communicate with the individual lumens formed in the branch delivery tubes 4,5.
  • each of the balloons namely the proximal and distal tapered portions and the cylindrical central portion, are substantially identical, although this need not necessarily be the case.
  • the narrowed distal ends 8,9 of the balloons are of different length, that for balloon 7 being longer. The reason for this will be explained below.
  • each of the guide wires is passed up a respective branch of the vessel to be treated.
  • the guide wires pass through their respective balloons and into a lumen in the respective branch delivery tubes 4,5.
  • the guide wire 10 then passes into a lumen in the main delivery tube 1 and emerges at point 12.
  • the guide wire 11 does not pass beyond the branch, and emerges instead from the branch delivery tube 5 at point 13.
  • Figure 2 illustrates an alternative embodiment in which the distal tip of the longer narrowed portion 9 of balloon 7 is formed with a rounded ball 14.
  • FIG. 3 illustrates a similar arrangement in which the balloon 7 is pre-fitted with a guide wire 17 which has an enlarged end 18 to prevent it from retracting back into the lumen.
  • the enlarged end 18 is conveniently round, as shown, so as to act in the same way as the rounded ball 14 in the embodiment of Figure 2.
  • the pre-fitted guide wire emerges from the branch tube 5 at point 13, in a similar manner to the arrangement shown in Figure 1 , however the guide wire 17 is different in that it travels with the catheter assembly as it is moved to the treatment site.
  • the guide wire 16 is the same as guide wire 10, and is used in the conventional way.
  • Figures 4 and 5 illustrate a catheter assembly of the type illustrated in Figures 1 to 3 which additionally comprises a stent 19.
  • Any suitable type of stent may be fitted; that illustrated is a standard stent comprising a series of longitudinally-arranged expandable cylindrical elements 20 which are linked together by linking members 21.
  • Such stents are known in the art.
  • One particularly suitable stent is described GB-A-2369062 and is characterised, amongst other things, by having just a single linking member 21 between each cylindrical element 20. The existence of just a single linking member 21 between elements 20 makes this stent particularly suitable for use with the balloon assembly of the present invention.
  • the stent is arranged such that the leftmost two cylindrical elements 20 encircle both balloons 6 and 7, whereas the remaining three cylindrical elements 20 encircle only the balloon 6.
  • Figure 5 shows the stent in its expanded state and with the balloons partly deflated.
  • Figure 6 illustrates the steps in a typical sequence of operations to fabricate the catheter assembly illustrated in Figures 4 and 5.
  • Figure 6A shows the stent in the form in which it comes from the manufacturing process.
  • the drawing is intended to illustrate a 6-element stent of the type described in GB-A-2369062, but other sizes and types are possible.
  • Figure 6B illustrates the result of the first step in the process, namely a pre-crimping operation by which the three elements 34-36, at the distal end of the stent are crimped to a smaller diameter than the three elements 31-33 at the proximal end.
  • the split need not be 3-3, as illustrated - another example is a 2-3 split in a five element stent, as illustrated in Figure 4.
  • Figure 6C illustrates the stent of Figure 6B in vertical section, with a catheter assembly of the type illustrated in Figures 1 to 3 placed therein.
  • Two possible catheter assemblies are illustrated: that on the left has one balloon 37 shorter than the other balloon 38, both balloons being substantially wholly encompassed by the stent; that on the right also has balloon 37 shorter than balloon 38, but illustrates that the balloon 37 may protrude beyond the confines of the stent.
  • Figure 6D illustrates the result of a further crimping operation, by which the whole stent - proximal and distal elements - is crimped onto the balloons in order to provide structural integrity sufficient to allow the whole assembly to be handled safely, and also enable it to be of sufficiently small section to pass easily to the treatment site.
  • Figure 6D shows left hand and right hand versions which correspond with those of Figure 6C.
  • the manner in which the above-described catheter assemblies is used will be apparent to those skilled in the art.
  • the procedure commences by insertion of the guide wires 10 and 11.
  • the balloon 7, having a longer narrowed distal portion 9, will navigate first into one or the other of the branches of the bifurcated vessel to be treated.
  • the balloon 6 will navigate into the remaining branch.
  • the balloons are preferably inflated simultaneously to thereby dilate the two branches at the same time. This will prevent dissection and/or occlusion of one of the branches.
  • one balloon may be inflated before the other, or as an overlapping sequence, depending upon the circumstances.
  • the catheter assembly described above allows flexibility in deciding how the balloons are inflated.
  • a single guide wire 15 is inserted and taken up one of the branches of the bifurcated vessel to be treated. This is then used to guide the catheter assembly to the treatment site with the balloon 6 entering the branch in which the guide wire is situated.
  • the rounded tip 14 enables the balloon 7 to navigate by itself into the other branch.
  • the single guide wire 16 is inserted and is then used to guide the catheter assembly to the bifurcation in the vessel being treated.
  • the pre-mounted guide wire 17 can be navigated into one of the branches of the vessel and the catheter advanced to guide the balloon 7 into that branch.
  • the balloon 6 is navigated into the other branch.

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

Abstract

La présente invention concerne un ensemble cathéter à ballonnet qui comprend un tube d'apport (1) de cathéter raccordé au niveau de son extrémité distale (3) dans des tubes d'apport à deux ramifications (4, 5) sur chacune desquelles est monté un ballonnet gonflable respectif (6, 7). Un stent (19) est monté sur ces ballonnets (6, 7) de façon à pouvoir être déployé avec ceux-ci pendant le déploiement. Ce stent (19) comprend de multiples éléments cylindriques (20) et cet agencement est tel qu'un certain nombre de ces éléments (20) situés au niveau de l'extrémité proximale de ce stent sont d'un diamètre plus grand que ceux qui restent de façon à leur permettre de recevoir les deux ballonnets (6) et (7), les éléments situés au niveau de l'extrémité distale ne recevant que le ballonnet (6).
PCT/EP2002/014658 2001-12-21 2002-12-20 Ensemble catheter a ballonnet raccorde WO2003053507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002366745A AU2002366745A1 (en) 2001-12-21 2002-12-20 Branched balloon catheter assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0130745.3 2001-12-21
GB0130745A GB0130745D0 (en) 2001-12-21 2001-12-21 Balloon catheter assembly

Publications (1)

Publication Number Publication Date
WO2003053507A1 true WO2003053507A1 (fr) 2003-07-03

Family

ID=9928243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/014658 WO2003053507A1 (fr) 2001-12-21 2002-12-20 Ensemble catheter a ballonnet raccorde

Country Status (3)

Country Link
AU (1) AU2002366745A1 (fr)
GB (2) GB0130745D0 (fr)
WO (1) WO2003053507A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007500040A (ja) * 2003-07-30 2007-01-11 ボストン サイエンティフィック リミテッド 分岐ステント搬送システム
US7641684B2 (en) 2003-10-16 2010-01-05 Minvasys, Sa Catheter system for stenting bifurcated vessels
US9278015B2 (en) 2003-10-16 2016-03-08 Minvasys Catheter system for stenting and drug treatment of bifurcated vessels
WO2016131822A1 (fr) * 2015-02-16 2016-08-25 Imad Sheiban Dispositif de pose de stent comprenant un ballonnet de forme excentrique
CN109381779A (zh) * 2017-08-02 2019-02-26 杭州唯强医疗科技有限公司 球囊导管

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004031674D1 (de) * 2004-05-06 2011-04-14 Invatec Srl Katheter zur behandlung von gabelungen
US9034025B2 (en) 2005-05-23 2015-05-19 Ostial Corporation Balloon catheters and methods for use
US7862601B2 (en) * 2005-05-23 2011-01-04 Incept Llc Apparatus and methods for delivering a stent into an ostium
EP2242456A2 (fr) 2007-12-31 2010-10-27 Boston Scientific Scimed, Inc. Système et procédés de pose de prothèse endovasculaire à bifurcation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733689A1 (fr) * 1995-08-07 1996-11-08 Dibie Alain Systeme pour la dilatation de vaisseaux sanguins
US5720735A (en) * 1997-02-12 1998-02-24 Dorros; Gerald Bifurcated endovascular catheter
WO1999024104A1 (fr) * 1997-11-07 1999-05-20 Ave Connaught Catheter a ballonnets pour la reparation de vaisseaux bifurques
EP0965311A2 (fr) * 1998-06-20 1999-12-22 Medtronic Ave, Inc. Méthode et dispositif de traitement de sténoses à regions bifurquées
WO2000027307A1 (fr) * 1998-11-08 2000-05-18 Brainwave Cardio-Vascular Technologies Ltd. Stent extensible a fourche et son dispositif de mise en place
US6099497A (en) * 1998-03-05 2000-08-08 Scimed Life Systems, Inc. Dilatation and stent delivery system for bifurcation lesions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000552A1 (de) * 1990-01-10 1991-07-11 Asfar Sami K Katheter
US5695457A (en) * 1994-07-28 1997-12-09 Heartport, Inc. Cardioplegia catheter system
US5549555A (en) * 1995-02-22 1996-08-27 Influence, Inc. Balloon catheter
FR2740346A1 (fr) * 1995-10-30 1997-04-30 Debiotech Sa Dispositif d'angioplastie pour bifurcation arterielle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733689A1 (fr) * 1995-08-07 1996-11-08 Dibie Alain Systeme pour la dilatation de vaisseaux sanguins
US5720735A (en) * 1997-02-12 1998-02-24 Dorros; Gerald Bifurcated endovascular catheter
WO1999024104A1 (fr) * 1997-11-07 1999-05-20 Ave Connaught Catheter a ballonnets pour la reparation de vaisseaux bifurques
US6099497A (en) * 1998-03-05 2000-08-08 Scimed Life Systems, Inc. Dilatation and stent delivery system for bifurcation lesions
EP0965311A2 (fr) * 1998-06-20 1999-12-22 Medtronic Ave, Inc. Méthode et dispositif de traitement de sténoses à regions bifurquées
WO2000027307A1 (fr) * 1998-11-08 2000-05-18 Brainwave Cardio-Vascular Technologies Ltd. Stent extensible a fourche et son dispositif de mise en place

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007500040A (ja) * 2003-07-30 2007-01-11 ボストン サイエンティフィック リミテッド 分岐ステント搬送システム
JP4709755B2 (ja) * 2003-07-30 2011-06-22 ボストン サイエンティフィック リミテッド 分岐ステント搬送システム
US8636707B2 (en) 2003-07-30 2014-01-28 Boston Scientific Scimed, Inc. Bifurcated stent delivery system
US7641684B2 (en) 2003-10-16 2010-01-05 Minvasys, Sa Catheter system for stenting bifurcated vessels
US9278015B2 (en) 2003-10-16 2016-03-08 Minvasys Catheter system for stenting and drug treatment of bifurcated vessels
WO2016131822A1 (fr) * 2015-02-16 2016-08-25 Imad Sheiban Dispositif de pose de stent comprenant un ballonnet de forme excentrique
CN109381779A (zh) * 2017-08-02 2019-02-26 杭州唯强医疗科技有限公司 球囊导管
CN109381779B (zh) * 2017-08-02 2024-03-08 杭州唯强医疗科技有限公司 球囊导管

Also Published As

Publication number Publication date
AU2002366745A1 (en) 2003-07-09
GB2385530A (en) 2003-08-27
GB0130745D0 (en) 2002-02-06
GB0229768D0 (en) 2003-01-29

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