WO2001030433A1 - A guidewire positioning device - Google Patents

A guidewire positioning device

Info

Publication number
WO2001030433A1
WO2001030433A1 PCT/NZ2000/000210 NZ0000210W WO2001030433A1 WO 2001030433 A1 WO2001030433 A1 WO 2001030433A1 NZ 0000210 W NZ0000210 W NZ 0000210W WO 2001030433 A1 WO2001030433 A1 WO 2001030433A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
guidewire
positioning device
distal end
lumen
guidewire lumen
Prior art date
Application number
PCT/NZ2000/000210
Other languages
French (fr)
Inventor
Mark Wilson Ian Webster
Original Assignee
Mark Wilson Ian Webster
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/013One-way gripping collars
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09116Design of handles or shafts or gripping surfaces thereof for manipulating guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires

Abstract

A device (1) for facilitating the delivery of components along guidewires to branches of a tubular system. The device has particular application for the percutaneous treatment of vascular and non-vascular disease, and more specifically for balloon angioplasty or the deployment of stents. The device includes a shaft (3) and two or more guidewire lumina (4, 5) interconnected to and parallel to one another, each lumen having an open distal end and an open proximal end on the shaft (3). In a preferred form the device includes a manipulation aid (2) at a proximal end of the shaft (3) which can engage one of the guidewires (6), and which facilitates rotation of the device. The invention also includes a method of positioning guidewires for the subsequent delivery of components such as stents to lesions at a bifurcation, using the guidewire positioning device.

Description

A GUIDEWIRE POSITIONING DEVICE

Technical Field

This invention relates to a method and device for facilitating the delivery of components along guidewires to branches of a tubular system. It has particular application for the percutaneous treatment of vascular and non-vascular disease, and in particular in the use of balloon angioplasty and for the deployment of balloon-expanded or self- expanding stents.

Background

Balloon angioplasty or deployment of stents for lesions at a bifurcation may require that the component (balloon angioplasty or stent) be advanced into position over two guidewires, each of which is positioned in a separate downstream branch vessel. It is important that, when the guidewires are positioned prior to the component delivery, the guidewires do not become entangled or wrapped around each other.

It is an object of the present invention to provide a guidewire positioning device, method of positioning guidewires and method of delivering components to branch vessels which reduces or overcomes the abovementioned problem, or which at least provides the public with a useful alternative.

It is to be appreciated, however, that the invention is not restricted to application for the treatment or management of vascular disease. It could also have application in non-vascular disease in situations where components need to be positioned in branched vessels along guidewires, or indeed in the delivery of components to branched vessels of any tubular system. Other objects of the invention may become apparent from the following description which is included by way of example only.

Summary of the Invention

According to one aspect of the present invention there is provided a guidewire positioning device for facilitating the delivery of components along guidewires to two or more branches of a tubular system, said device including a shaft and two or more guidewire lumina interconnected to and parallel to one another, each said lumen having an open distal end and an open proximal end on said shaft.

Preferably, the tubular system may be a vascular system and the device may be adapted for facilitating the delivery of components used in the management of vascular disease.

Preferably, the device may be adapted for the delivery of stents to lesions at a bifurcation.

According to a further aspect of the present invention there is provided a method of positioning guidewires for the delivery of components to two or more branches of a tubular system the method including the steps of: engaging a first guidewire through a first guidewire lumen of a guidewire positioning device, before or after advancing the first guidewire along the tubular system and into a first branch; advancing one or more further guidewires along one or more further guidewire lumen, interconnected to and parallel to the first guidewire lumen, of the guidewire positioning device, to a distal end of said further guidewire lumen; advancing the guidewire positioning device, with the engaged further guidewire or guidewires, along the first guidewire by means of a shaft of the guidewire positioning device, until said distal end of the or each further guidewire lumen is adjacent the branching of the tubular system; rotating the shaft of the guidewire positioning device so that the distal end of the or each further guidewire lumen is adjacent a second branch of the tubular system; and advancing the, or one of the, further guidewires into the second branch.

According to a further aspect of the present invention there is provided a method of treating a lesion of lesions at a bifurcation in a blood vessel, said method including the steps of: engaging a first guidewire on a first guidewire lumen of a guidewire positioning device, before or after advancing the first guidewire along the blood vessel and into one down stream branch vessel; advancing a second guidewire to a distal end of a second guidewire lumen, interconnected to and parallel to the first guidewire lumen, of the guidewire positioning device; - securing the second guidewire in relation to the guidewire positioning device; advancing the guidewire positioning device, with the secured second guidewire, along the first guidewire by means of a shaft of the guidewire positioning device until the distal end of the second guidewire lumen is at the bifurcation; rotating the guidewire positioning device, if necessary, to align the distal end of the second guidewire lumen with the second branch vessel; advancing the second guidewire into the second branch vessel; withdrawing the guidewire positioning device along both the first and second guidewires; and advancing a stent or angioplasty balloon along one or each guidewire to treat a lesion at the bifurcation.

Brief Description of the Drawings

Figure 1 : Shows a longitudinal section of a guidewire positioning device of the invention in one preferred form;

Figure 2: shows a perspective view of the device of Figure 1 with a guidewire engaged in the second lumen;

Figure 3: shows an enlarged longitudinal section of the distal end of the device of Figure 2;

Figure 4: shows longitudinal sections of alternative configurations of the joins between the shaft and the two guidewire lumina of a guidewire positioning device of the invention; and

Figure 5: shows a cross section through the manipulation aid of the device of Figures 1 and 2, in one preferred form. Detailed Description of the Invention

The invention will now be described by reference to the preferred embodiment for use in the management of vascular disease. However, as indicated above, it is to be appreciated that the invention is not restricted to such an application, there being other applications both in medicine and elsewhere, where the accurate positioning of components in vessels, tubes or pipes including bifurcations or multiple branches is important but difficult, and where the use of guidewires would be helpful providing that the risk of wrapping or entanglement of the guidewires could be avoided.

With reference to Figures 1 and 2, a guidewire positioning device 1 of the invention has two guidewire lumen which are interconnected to one another and parallel. The first guidewire lumen 4 has an open distal end 1 5 and an open proximal end 1 6. Similarly, the second guidewire lumen 5 has an open distal end 1 7 and open proximal 1 8. A radio- opaque marker 8, 9 may be positioned at or close to the distal end 1 5, 17 so that the position of the distal ends may be determined through fluoroscopy.

The second guidewire lumen 5 may have a distal end 1 7 a short distance (approximately 1 0mm) proximal to the distal end 1 5 of the first guidewire lumen 4. Alternatively, the second guidewire lumen 5 might extend to the distal end 1 5 of the first guidewire lumen 4, or it may end distally a considerable distance more than 10mm from the distal end 1 5 of the first guidewire lumen 4.

The distal end 1 7 of the second guidewire lumen 5 may have an oblique bevelled shape 10, as best seen in Figure 3. This shape aids advancement of the guidewire positioning device 1 into position in the vessel, and also aids advancement of a guidewire from the second guidewire lumen 5 into a branch vessel. The radio-opaque marker 9 at or close to the distal end 1 7 of the second guidewire lumen 5 may have a symmetrical or asymmetrical configuration. An asymmetrical shape, as shown in Figure 3, may aid orientation of the second guidewire lumen 5 in the vessel under fluoroscopy.

Proximally, the guidewire lumen may have a double over-the- wire, double monorail, or combination over-the-wire/monorail configuration. A double monorail configuration would require a separate proximal catheter shaft (as in Figures 1 and 2) . At the proximal end of this shaft 3 there may be a longitudinally enlarged hub 2, or manipulation aid, to aid catheter manipulation. This hub 2 may have a longitudinal recessed groove 7 into which a guidewire may be positioned, as shown in Figures 2 and 5. Slotting a guidewire 6 in place in this groove 7 holds the guidewire in position in relation to the guidewire positioning device, as the device is advanced, withdrawn or rotated to manipulate the distal end of the device. Figure 5 shows that this groove 7 may include ribbing 1 9 or other means, to grip the guidewire 6.

Whilst the invention is described above by reference to the device including two parallel lumina, it should be appreciated that one or more additional parallel lumina may be included for use in applications where a parent vessel or tube branches into more than two branches or where more than one separate component is required to be delivered to one particular branch.

Figures 1 and 3 show a guidewire positioning device 1 of the invention in a monorail version. The proximal ends 1 6, 1 8 of the guidewire lumina 4, 5 are shown off set in this embodiment, with the proximal end 1 6 of the first guidewire lumen 1 5 proximal of the proximal end 1 8 of the second guidewire lumen 5, consistent with the embodiment of Figure 4B. The embodiment of Figure 4A shows the two proximal ends 1 6, 1 8 at the same proximal position in relation to the shaft 3. Figure 4 also shows of the interconnection between the shaft 3 and the lumina 4, 5. In a preferred form the guidewire positioning device of the invention, including the hub 2, shaft 3 and lumina 4, 5 may be integrally formed from plastics material.

The method of use of the device of the present invention will now be described.

If a double monorail device is used, one method of use, after deployment of the guide catheter, is to advance a first guidewire via the first guidewire lumen 4 and along the guide catheter, across the bifurcation lesion and into one downstream branch vessel. Alternatively the first guidewire may be advanced along the guide catheter first and the first guidewire lumen then engaged on the first guidewire via its proximal end. A second guidewire is then positioned in the second guidewire lumen 5 of the device and advanced until the distal end of the guidewire is close to or adjacent the distal end 1 7 of the second guidewire lumen 5. The proximal portion of the second guidewire is then slotted into the recessed groove 7 in the hub 2 at the proximal end of the catheter shaft 3, to hold that guidewire in position as the guidewire positioning device 1 is subsequently manipulated.

The guidewire positioning device 1 and the second guidewire are then advanced as a unit along the first guidewire already positioned in the vessel. The guidewire positioning device 1 is advanced until the distal end 1 5 of the first guidewire lumen 4 is just beyond the bifurcation" and the distal end 1 7 of the second guidewire lumen 5 is almost at the bifurcation. It will be appreciated that in an embodiment of the device in which the distal ends of the guidewire lumina are adjacent one another then both will be positioned substantially at the bifurcation.

The guidewire positioning device 1 is then rotated by manipulation of the hub 2 so that the bevelled, marked distal end 1 7 of the second guidewire lumen 5 is aligned with the other branch vessel which does not yet have a guidewire. The second guidewire is then released from the hub and steered into the second branched vessel. Once the second guidewire is in position the guidewire positioning device may be withdrawn, with both guidewires kept in position, one in each downstream branch vessel. Angioplasty balloons or stents can then be advanced over one or both guidewires to treat the lesion in the knowledge that the guidewires are not entangled or wrapped around each other.

Thus, the guidewire positioning device 1 of the invention provides a relatively simple device which can be used to facilitate the delivery of guidewires to branched regions of a tubular system, such as blood vessels, to enable the delivery of components required in those branches along the guidewires, without the risk of complications associated with multiple guidewires becoming wrapped or entangled with one another.

Where in the foregoing description reference has been made to specific components or integers of the invention having known equivalents then such equivalents are herein incorporated as if individually set forth.

Although this invention has been described by way of example and with reference to possible embodiments thereof it is to be understood that modifications or improvements may be made thereto without departing from the scope or spirit of the invention.

Claims

1 . A guidewire positioning device for facilitating the delivery of components along guidewires to two or more branches of a tubular system, said device including a shaft and two or more guidewire lumina interconnected to and parallel to one another, each said lumen having an open distal end and an open proximal end on said shaft.
2. A guidewire positioning device according to claim 1 wherein the tubular system is a vascular system and the device is adapted for facilitating the delivery of components used in the management of vascular disease.
3. A guidewire positioning device according to claim 2 for the delivery of stents to lesions at a bifurcation.
4. A guidewire positioning device according to any one of claims 1 to 3 including a first guidewire lumen and a second guidewire lumen.
5. A guidewire positioning device according to claim 4 wherein the distal end of the first guidewire lumen is distal of the distal end of the second guidewire lumen.
6. A guidewire positioning device according to any one of claims 1 to 5 wherein the distal end of the second guidewire lumen has an oblique bevelled shape.
7. A guidewire positioning device according to claim 6 wherein the distal end of the first guidewire lumen has an oblique bevelled shape oppositely angled to that of the second guidewire lumen.
8. A guidewire positioning device according to any one of claims 4 to 7 wherein the proximal end of the first guidewire lumen is proximal of the proximal end of the second guidewire lumen.
9. A guidewire positioning device according to any one of claims 4 to 8 further including a manipulation aid at a proximal end of said shaft.
10. A guidewire positioning device according to claim 9 wherein the manipulation aid further includes a guidewire engagement means.
1 1 . A guidewire positioning device according to either claim 9 or claim 10 wherein the manipulation aid is a longitudinally enlarged hub.
1 2. A guidewire positioning device according to claim 1 1 wherein the guidewire engagement means is a longitudinal slot in said hub.
13. A guidewire positioning device according to any one of claims 4 to 1 2 wherein each guidewire lumen includes a radio-opaque marker at or adjacent its distal end.
14. A guidewire positioning device according to claim 1 3 wherein the radio-opaque marker on either or both guidewire lumen is asymmetrical.
1 5. A guidewire positioning device according to any one of claims 1 to 14 wherein the device is integrally formed from plastics material.
6. A method of positioning guidewires for the delivery of components to two or more branches of a tubular system, the method including the steps of: engaging a first guidewire on a first guidewire lumen of a guidewire positioning device, before or after advancing the first guidewire along the tubular system and into a first branch; advancing one or more further guidewires along one or more further guidewire lumen, interconnected to and parallel to the first guidewire lumen, of the guidewire positioning device, to a distal end of said further guidewire lumen; advancing the guidewire positioning device, with the engaged further guidewire or guidewires, along the first guidewire by means of a shaft of the guidewire positioning device, until said distal end of the or each further guidewire lumen is adjacent the branching of the tubular system; rotating the shaft of the guidewire positioning device so that the distal end of the or each further guidewire lumen is adjacent a second branch of the tubular system; and advancing the, or one of the, further guidewires into the second branch.
7. A method according to claim 1 6 wherein the guidewire positioning device further includes a manipulating aid, and rotation of the shaft is facilitated by this manipulating aid.
8. A method according to either claim 1 6 or claim 1 7 further including securing a proximal end of the or each further guidewire to the guidewire positioning device prior to advancing the guidewire positioning device along the first guidewire.
1 9. A method according to any one of claims 1 6 to 1 8 further including the step of monitoring the position of the distal end of the or each further guidewire lumen in the tubular system by having identification means at this distal end.
20. A method according to claim 1 9 wherein the identifying means includes a radio-opaque marker on said distal end.
21 . A method of treating a lesion of lesions at a bifurcation in a blood vessel, said method including the steps of: engaging a first guidewire on a first guidewire lumen of a guidewire positioning device, before or after advancing the first guidewire along the blood vessel and into one down stream branch vessel; advancing a second guidewire to a distal end of a second guidewire lumen, interconnected to and parallel to the first guidewire lumen, of the guidewire positioning device; securing the second guidewire in relation to the guidewire positioning device; advancing the guidewire positioning device, with the secured second guidewire, along the first guidewire by means of a shaft of the guidewire positioning device until the distal end of the second guidewire lumen is at the bifurcation; rotating the guidewire positioning device, if necessary, to align the distal end of the second guidewire lumen with the second branch vessel; advancing the second guidewire into the second branch vessel; withdrawing the guidewire positioning device along both the first and second guidewires; and - advancing a stent or angioplasty balloon along one or each guidewire to treat a lesion at the bifurcation.
22. A method according to claim 21 wherein the first guidewire lumen has a distal end distal of the distal end of the second guidewire lumen, and wherein the guidewire positioning device is advanced along the blood vessel until the distal end of the first guidewire lumen is positioned within the first branch vessel.
23. A method according to either claim 21 or claim 22 further including monitoring the position of distal end of the second guidewire lumen by having identification means at this distal end.
24. A method according to claim 23 further including monitoring the position of the distal end of the first guidewire lumen having identification means at this distal end.
25. A method according to either claim 23 or claim 24 wherein the or each identification means includes a radio-opaque marker, and the positions are monitored by fluoroscopy.
26. A guidewire positioning device substantially as herein described and with reference with to the accompanying drawings.
27. A method of positioning guidewires for the delivery of components to two or more branches of a tubular system substantially as herein described and with reference to the accompanying drawings.
28. A method of treating a vascular lesion at a bifurcation using a guidewire positioning device according to any one of claims 1 - 1 5.
29. A method of treating a vascular lesion at a bifurcation substantially as herein described and with reference to the accompanying drawings.
PCT/NZ2000/000210 1999-10-26 2000-10-26 A guidewire positioning device WO2001030433A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NZ500582 1999-10-26
NZ50058299 1999-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000975025 EP1231969A1 (en) 1999-10-26 2000-10-26 A guidewire positioning device

Publications (1)

Publication Number Publication Date
WO2001030433A1 true true WO2001030433A1 (en) 2001-05-03

Family

ID=19927590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2000/000210 WO2001030433A1 (en) 1999-10-26 2000-10-26 A guidewire positioning device

Country Status (2)

Country Link
EP (1) EP1231969A1 (en)
WO (1) WO2001030433A1 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1457230A1 (en) * 2003-03-14 2004-09-15 Terumo Kabushiki Kaisha Catheter
GB2432319A (en) * 2005-11-21 2007-05-23 Taunton & Somerset Nhs Trust Probing catheters for intravascular procedures
JP2008110246A (en) * 1997-10-01 2008-05-15 Boston Scient Corp Guidewire compatible port and method for inserting the port
US8192452B2 (en) 2009-05-14 2012-06-05 Tyco Healthcare Group Lp Easily cleaned atherectomy catheters and methods of use
US8226674B2 (en) 2000-12-20 2012-07-24 Tyco Healthcare Group Lp Debulking catheters and methods
US8246640B2 (en) 2003-04-22 2012-08-21 Tyco Healthcare Group Lp Methods and devices for cutting tissue at a vascular location
US8328829B2 (en) 1999-08-19 2012-12-11 Covidien Lp High capacity debulking catheter with razor edge cutting window
US8414604B2 (en) 2008-10-13 2013-04-09 Covidien Lp Devices and methods for manipulating a catheter shaft
US8469979B2 (en) 2000-12-20 2013-06-25 Covidien Lp High capacity debulking catheter with distal driven cutting wheel
US8496677B2 (en) 2009-12-02 2013-07-30 Covidien Lp Methods and devices for cutting tissue
US8579926B2 (en) 1998-04-10 2013-11-12 Covidien Lp Plaque removal device with rotatable cutting element
US8597315B2 (en) 1999-08-19 2013-12-03 Covidien Lp Atherectomy catheter with first and second imaging devices
US8784440B2 (en) 2008-02-25 2014-07-22 Covidien Lp Methods and devices for cutting tissue
US8808186B2 (en) 2010-11-11 2014-08-19 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US8920450B2 (en) 2010-10-28 2014-12-30 Covidien Lp Material removal device and method of use
US8992717B2 (en) 2011-09-01 2015-03-31 Covidien Lp Catheter with helical drive shaft and methods of manufacture
US8998937B2 (en) 1999-08-19 2015-04-07 Covidien Lp Methods and devices for cutting tissue
US9028512B2 (en) 2009-12-11 2015-05-12 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US9119662B2 (en) 2010-06-14 2015-09-01 Covidien Lp Material removal device and method of use
US9456843B2 (en) 2014-02-03 2016-10-04 Covidien Lp Tissue-removing catheter including angular displacement sensor
US9526519B2 (en) 2014-02-03 2016-12-27 Covidien Lp Tissue-removing catheter with improved angular tissue-removing positioning within body lumen
US9532844B2 (en) 2012-09-13 2017-01-03 Covidien Lp Cleaning device for medical instrument and method of use
US9597110B2 (en) 2012-11-08 2017-03-21 Covidien Lp Tissue-removing catheter including operational control mechanism
US9687266B2 (en) 2009-04-29 2017-06-27 Covidien Lp Methods and devices for cutting and abrading tissue
US9801647B2 (en) 2006-05-26 2017-10-31 Covidien Lp Catheter including cutting element and energy emitting element
US9943329B2 (en) 2012-11-08 2018-04-17 Covidien Lp Tissue-removing catheter with rotatable cutter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749825A (en) * 1996-09-18 1998-05-12 Isostent, Inc. Means method for treatment of stenosed arterial bifurcations
EP0897700A1 (en) * 1997-08-13 1999-02-24 Advanced Cardiovascular Systems, Inc. Stent and catheter assembly and method for treating bifurcations
WO1999034749A1 (en) * 1998-01-08 1999-07-15 Mark Wilson Ian Webster Self-expanding bifurcation stent and delivery system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749825A (en) * 1996-09-18 1998-05-12 Isostent, Inc. Means method for treatment of stenosed arterial bifurcations
EP0897700A1 (en) * 1997-08-13 1999-02-24 Advanced Cardiovascular Systems, Inc. Stent and catheter assembly and method for treating bifurcations
WO1999034749A1 (en) * 1998-01-08 1999-07-15 Mark Wilson Ian Webster Self-expanding bifurcation stent and delivery system

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008110246A (en) * 1997-10-01 2008-05-15 Boston Scient Corp Guidewire compatible port and method for inserting the port
US8579926B2 (en) 1998-04-10 2013-11-12 Covidien Lp Plaque removal device with rotatable cutting element
US8597315B2 (en) 1999-08-19 2013-12-03 Covidien Lp Atherectomy catheter with first and second imaging devices
US8998937B2 (en) 1999-08-19 2015-04-07 Covidien Lp Methods and devices for cutting tissue
US9486237B2 (en) 1999-08-19 2016-11-08 Covidien Lp Methods and devices for cutting tissue
US9615850B2 (en) 1999-08-19 2017-04-11 Covidien Lp Atherectomy catheter with aligned imager
US8328829B2 (en) 1999-08-19 2012-12-11 Covidien Lp High capacity debulking catheter with razor edge cutting window
US8911459B2 (en) 1999-08-19 2014-12-16 Covidien Lp Debulking catheters and methods
US9788854B2 (en) 1999-08-19 2017-10-17 Covidien Lp Debulking catheters and methods
US9532799B2 (en) 1999-08-19 2017-01-03 Covidien Lp Method and devices for cutting tissue
US8469979B2 (en) 2000-12-20 2013-06-25 Covidien Lp High capacity debulking catheter with distal driven cutting wheel
US8226674B2 (en) 2000-12-20 2012-07-24 Tyco Healthcare Group Lp Debulking catheters and methods
US9241733B2 (en) 2000-12-20 2016-01-26 Covidien Lp Debulking catheter
EP1457230A1 (en) * 2003-03-14 2004-09-15 Terumo Kabushiki Kaisha Catheter
US9999438B2 (en) 2003-04-22 2018-06-19 Covidien Lp Methods and devices for cutting tissue at a vascular location
US8246640B2 (en) 2003-04-22 2012-08-21 Tyco Healthcare Group Lp Methods and devices for cutting tissue at a vascular location
US8961546B2 (en) 2003-04-22 2015-02-24 Covidien Lp Methods and devices for cutting tissue at a vascular location
GB2432319A (en) * 2005-11-21 2007-05-23 Taunton & Somerset Nhs Trust Probing catheters for intravascular procedures
US9801647B2 (en) 2006-05-26 2017-10-31 Covidien Lp Catheter including cutting element and energy emitting element
US8784440B2 (en) 2008-02-25 2014-07-22 Covidien Lp Methods and devices for cutting tissue
US9445834B2 (en) 2008-02-25 2016-09-20 Covidien Lp Methods and devices for cutting tissue
US8414604B2 (en) 2008-10-13 2013-04-09 Covidien Lp Devices and methods for manipulating a catheter shaft
US9192406B2 (en) 2008-10-13 2015-11-24 Covidien Lp Method for manipulating catheter shaft
US9687266B2 (en) 2009-04-29 2017-06-27 Covidien Lp Methods and devices for cutting and abrading tissue
US8574249B2 (en) 2009-05-14 2013-11-05 Covidien Lp Easily cleaned atherectomy catheters and methods of use
US9220530B2 (en) 2009-05-14 2015-12-29 Covidien Lp Easily cleaned atherectomy catheters and methods of use
US8192452B2 (en) 2009-05-14 2012-06-05 Tyco Healthcare Group Lp Easily cleaned atherectomy catheters and methods of use
US9687267B2 (en) 2009-12-02 2017-06-27 Covidien Lp Device for cutting tissue
US8496677B2 (en) 2009-12-02 2013-07-30 Covidien Lp Methods and devices for cutting tissue
US9028512B2 (en) 2009-12-11 2015-05-12 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US9855072B2 (en) 2010-06-14 2018-01-02 Covidien Lp Material removal device and method of use
US9119662B2 (en) 2010-06-14 2015-09-01 Covidien Lp Material removal device and method of use
US8920450B2 (en) 2010-10-28 2014-12-30 Covidien Lp Material removal device and method of use
US9717520B2 (en) 2010-10-28 2017-08-01 Covidien Lp Material removal device and method of use
US8808186B2 (en) 2010-11-11 2014-08-19 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US9326789B2 (en) 2010-11-11 2016-05-03 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US8992717B2 (en) 2011-09-01 2015-03-31 Covidien Lp Catheter with helical drive shaft and methods of manufacture
US9770259B2 (en) 2011-09-01 2017-09-26 Covidien Lp Catheter with helical drive shaft and methods of manufacture
US9579157B2 (en) 2012-09-13 2017-02-28 Covidien Lp Cleaning device for medical instrument and method of use
US9532844B2 (en) 2012-09-13 2017-01-03 Covidien Lp Cleaning device for medical instrument and method of use
US9943329B2 (en) 2012-11-08 2018-04-17 Covidien Lp Tissue-removing catheter with rotatable cutter
US9597110B2 (en) 2012-11-08 2017-03-21 Covidien Lp Tissue-removing catheter including operational control mechanism
US9526519B2 (en) 2014-02-03 2016-12-27 Covidien Lp Tissue-removing catheter with improved angular tissue-removing positioning within body lumen
US9456843B2 (en) 2014-02-03 2016-10-04 Covidien Lp Tissue-removing catheter including angular displacement sensor

Also Published As

Publication number Publication date Type
EP1231969A1 (en) 2002-08-21 application

Similar Documents

Publication Publication Date Title
US6210380B1 (en) Bifurcated catheter assembly
US4873983A (en) Steerable guidewire for vascular system
US5792144A (en) Stent delivery catheter system
US6582390B1 (en) Dual lumen peel-away sheath introducer
US7462191B2 (en) Device and method for assisting in the implantation of a prosthetic valve
US6371978B1 (en) Bifurcated stent delivery system having retractable sheath
US5158545A (en) Diameter expansion cannula
US6080140A (en) Integral cerebro-vascular access system
US6800065B2 (en) Catheter and guide wire exchange system
US5407432A (en) Method of positioning a stent
US7131986B2 (en) Catheter having exchangeable balloon
US5413581A (en) Method of using a balloon dilatation catheter and a guidewire
US20030055377A1 (en) Exchangeable catheter
US5267958A (en) Exchange catheter having exterior guide wire loops
US6740104B1 (en) Enhanced catheter with alignment means
US6099497A (en) Dilatation and stent delivery system for bifurcation lesions
US6113607A (en) Method of delivering a stent
US5409470A (en) Dilatation catheter and guidewire with threaded tip connection
US20020133092A1 (en) Wire convertible from over-the-wire length to rapid exchange length
US20070282419A1 (en) Catheter system for stenting and drug treatment of bifurcated vessels
US20040059291A1 (en) Catheter with improved transition section
US5520647A (en) Rapid withdrawal catheter
US20040064128A1 (en) Multi-lumen biliary catheter with angled guidewire exit
US6139572A (en) Delivery system for intraluminal vascular grafts
US6893417B2 (en) Catheter and guide wire exchange system with improved proximal shaft and transition section

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ CZ DE DE DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2000975025

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000975025

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase in:

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2000975025

Country of ref document: EP