CA2431062A1 - Balloon catheter with radiopaque distal tip - Google Patents

Balloon catheter with radiopaque distal tip Download PDF

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Publication number
CA2431062A1
CA2431062A1 CA002431062A CA2431062A CA2431062A1 CA 2431062 A1 CA2431062 A1 CA 2431062A1 CA 002431062 A CA002431062 A CA 002431062A CA 2431062 A CA2431062 A CA 2431062A CA 2431062 A1 CA2431062 A1 CA 2431062A1
Authority
CA
Canada
Prior art keywords
radiopaque
distal
tip portion
means comprises
balloon catheter
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.)
Granted
Application number
CA002431062A
Other languages
French (fr)
Other versions
CA2431062C (en
Inventor
Anthony C. Vrba
Jason T. Lenz
Steven P. Mertens
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.)
Boston Scientific Ltd Barbados
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2431062A1 publication Critical patent/CA2431062A1/en
Application granted granted Critical
Publication of CA2431062C publication Critical patent/CA2431062C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
    • 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
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/0069—Tip not integral with tube

Abstract

A balloon catheter in which its distal tip is precisely positionable in order to control movement of the catheter through tortuous vasculature and especially through the lumen of a deployed stent is disclosed. The distal tip of the catheter is rendered radiopaque, at least at its distal-most end, to enable visualization of the position of the catheter and to facilitate placing the catheter in the desired position.

Claims (31)

1. In a catheter having a distal portion including an expandable member having a distal end, the expandable member further having a portion affixed to a tubular member which extends through at least a portion of the expandable member and beyond the distal end of the expandable member to form a tip portion, the improvement comprising:
a radiopaque means extending along at least a portion of the tip portion distal of said distal end of the expandable member so that in use the radiopaque means renders at least a portion of said tip portion visible under fluoroscopy.
2. The improvement of claim 1, wherein the tubular member is a single elongate tube extending through the expandable member and forming the tip.
3. The improvement of claim 1, wherein the tubular member is comprised of multiple tubular segments joined together and a distal tubular segment forms the tip portion.
4. The improvement of claim 3, wherein the expandable member includes a distal waist and the distal tubular segment extends through at least a portion of the distal waist.
5. The improvement of claim 1, wherein the radiopaque means comprises a radiopaque material encircling at least a part of the tip portion.
6. The improvement of claim 1, wherein the radiopaque means comprises a radiopaque material overlying at least a part of the distal tip portion.
7. The improvement of claim 1, wherein the radiopaque means comprises a radiopaque material embedded in at least a part of the distal tip portion.
8. The improvement of claim 1, wherein the radiopaque means comprises a radiopaque pigment is applied to at least a portion of the distal tip portion.
9. The improvement of claim 1, wherein the radiopaque means comprises an axially disposed radiopaque wire which is incorporated within at least part of the distal tip portion.
10. The improvement of claim 1, wherein the radiopaque means comprises a radiopaque material formed into a coil and secured around at least part of the distal tip portion.
11. The improvement of claim 1, wherein the radiopaque means comprises a mesh material.
12. The improvement of claim 1, wherein the radiopaque means comprises a braid material.
13. The improvement of claim 1, wherein the radiopaque means comprises a cap upon the end of the distal tip portion.
14. The improvement of claim 1, wherein the radiopaque means comprises an arc of a hypotube overlying at least part of the distal tip portion.
15. The improvement of claim 1, wherein the radiopaque means includes at least part of the distal tip portion having a series of alternating bands of radiopaque material and non-radiopaque material.
16. A balloon catheter assembly comprising:
an outer tube having a proximal end and a distal end with a lumen extending therethrough;
an elongate inner tube having a proximal end and a distal end with a lumen extending therethrough, said inner tube coaxially disposed within the lumen of the outer tube to form an inflation lumen therebetween; and, an inflatable balloon having a proximal end sealably connected proximate the distal end of the outer tube, and a distal end sealably connected proximate the distal end of the inner tube, the interior of the balloon being in fluid communication with the inflation lumen, wherein said inner tube extends distally beyond the distal end of said balloon to form a tip portion, said tip portion including radiopaque means.
17. The balloon catheter assembly of claim 16, wherein the inner tubular member is a single elongate tube extending through the inflatable balloon and forming the tip portion.
18. The balloon catheter assembly of claim 16, wherein the inner tubular member is comprised of multiple segments joined together and a distal tubular segment of said inner tubular member forms the tip portion.
19. The balloon catheter assembly of claim 18, wherein the expandable member includes a distal waist and the distal tubular segment extends through at least a portion of the distal waist.
20. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a radiopaque material encircling at least a part of the tip portion.
21. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a radiopaque material overlying at least a part of the tip portion.
22. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a radiopaque material embedded in at least a part of the tip portion.
23. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a radiopaque pigment applied to at least a portion of the tip portion.
24. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises an axially disposed radiopaque wire which is incorporated within at least part of the tip portion.
25. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a radiopaque material formed into a coil and secured around at least part of the tip portion.
26. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a mesh material.
27. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a braid material.
28. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises a cap upon the end of the tip portion.
29. The balloon catheter assembly of claim 16, wherein the radiopaque means comprises an arc of a hypotube overlying at least part of the tip portion.
30. The balloon catheter assembly of claim 16, wherein the radiopaque means includes at least part of the tip portion having a series of alternating bands of radiopaque material and non-radiopaque material.
31. A balloon catheter comprising:
an elongate outer tube having a lumen extending the length therein;
an elongate inner tube coaxially disposed within at least a portion of the elongate outer tube with a distal segment extending distally beyond a distal end of the elongate outer tube, the distal segment having at least a portion being radiopaque; and an inflatable balloon having a proximal end, a distal end and an expandable region therebetween, wherein the distal end of the balloon is sealably connected to the distal segment of the elongate inner tube and the proximal end of the inflatable balloon is sealably connected to the elongate outer tube, and further wherein the expandable region of the balloon is in fluid communication with the lumen of the elongate outer tube.
CA002431062A 2000-12-08 2001-10-23 Balloon catheter with radiopaque distal tip Expired - Fee Related CA2431062C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/733,355 US6623504B2 (en) 2000-12-08 2000-12-08 Balloon catheter with radiopaque distal tip
US09/733,355 2000-12-08
PCT/US2001/051106 WO2002045622A2 (en) 2000-12-08 2001-10-23 Balloon catheter with radiopaque distal tip

Publications (2)

Publication Number Publication Date
CA2431062A1 true CA2431062A1 (en) 2002-06-13
CA2431062C CA2431062C (en) 2010-03-09

Family

ID=24947269

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002431062A Expired - Fee Related CA2431062C (en) 2000-12-08 2001-10-23 Balloon catheter with radiopaque distal tip

Country Status (6)

Country Link
US (1) US6623504B2 (en)
EP (1) EP1339355B1 (en)
JP (1) JP4709472B2 (en)
AU (1) AU2002231363A1 (en)
CA (1) CA2431062C (en)
WO (1) WO2002045622A2 (en)

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US6623504B2 (en) 2003-09-23
EP1339355A2 (en) 2003-09-03
JP4709472B2 (en) 2011-06-22
US20020072705A1 (en) 2002-06-13
AU2002231363A1 (en) 2002-06-18
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JP2005511108A (en) 2005-04-28
WO2002045622A2 (en) 2002-06-13

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