EP1317229A2 - Selektiv-geätzte, radiopaque, intraluminale vorrichtung - Google Patents

Selektiv-geätzte, radiopaque, intraluminale vorrichtung

Info

Publication number
EP1317229A2
EP1317229A2 EP01984625A EP01984625A EP1317229A2 EP 1317229 A2 EP1317229 A2 EP 1317229A2 EP 01984625 A EP01984625 A EP 01984625A EP 01984625 A EP01984625 A EP 01984625A EP 1317229 A2 EP1317229 A2 EP 1317229A2
Authority
EP
European Patent Office
Prior art keywords
stent
preform
radiopaque material
radiopaque
affixed
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Withdrawn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
EP01984625A
Other languages
English (en)
French (fr)
Inventor
Richard Olson
Timothy Ley
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
Boston Scientific Ltd Barbados
Scimed Life Systems Inc
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 Boston Scientific Ltd Barbados, Scimed Life Systems Inc filed Critical Boston Scientific Ltd Barbados
Publication of EP1317229A2 publication Critical patent/EP1317229A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/856—Single tubular stent with a side portal passage
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions 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
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
    • A61F2002/91541—Adjacent bands are arranged out of phase
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/9155—Adjacent bands being connected to each other
    • A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
    • 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

Definitions

  • stents are placed at branches in a blood vessel. These stents are typically referred to as bifurcated stents, and are used where blockages occur at blood vessel junctions.
  • the process of removing radiopaque material from the desired areas of the stent may be accomplished by laser cutting, chemical etching, metal stamping, and so forth.
  • radial expandable stents useful herein are described generally in Application Serial Nos. 08/511 ,076; 09/111 ,531 ; and 09/197,276 all now pending, the entire contents of which are herein incorporated by reference.
  • Other radial expandable stents are described generally in US 5807404, US 5836964 and US 5922005, the entire contents of which are herein incorporated by reference.
  • the metal is plated with a solution of a metal salt wherein a thin layer of metal, i.e. the "strike", is immediately deposited on the surface of the metal sheet or tube.
  • This layer is controlled by the concentration of the solution, the time of exposure, and the amperage of the current, to a thickness of preferably about 5 x 10 "6 cm to about 1.5 x 10 "5 cm (about 0.5 ⁇ m to about 1.5 ⁇ m; about 500 to about 1500 A).
  • a typical strike layer is approximately 1.3 x 10 "5 cm (about 1.3 ⁇ m or 1270 ⁇ ).
  • This thin layer has no affect on the rigidity or expansion properties of the stent thereby allowing the entire surface to be coated with a simple immersion step.
  • the "strike” layer may be optionally added to improve the adhesion of the subsequently applied radiopaque coating to the metal.
  • the very thin "strike” layer allows the entire metal sheet or tube to be dipped in a plating solution of the metal because the thin coating will not have an adverse affect on the stent properties, such as decreased flexibility or increased radiopacity.
  • the strike layer may be comprised of any metal typically used for a "strike” including any of the noble metals such as gold, silver, nickel, and so forth.
  • a gold "strike” is desirable. Gold has been found to be a preferable choice because it tends to cause less thrombus, tissue irritation and/or allergic reaction and so forth than other metals such as nickel, for instance.
  • This variation in thickness can be controlled by how much material is plated on the surface, as well as by the removal process itself. For instance, etching can be used to remove more radiopaque coating from some areas than others therefore controlling the coating thickness in this manner.
  • radiopaque materials can be coated on different portions of the stent to vary the radiopacity of the stent as well.
  • tantalum can be coated on one portion and gold on another portion. The tantalum will irradiate more brightly than the gold.
  • selective marking of the stents is easily accomplished.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)
EP01984625A 2000-09-12 2001-09-12 Selektiv-geätzte, radiopaque, intraluminale vorrichtung Withdrawn EP1317229A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65957100A 2000-09-12 2000-09-12
US659571 2000-09-12
PCT/US2001/028850 WO2002022050A2 (en) 2000-09-12 2001-09-12 Selectively etched radiopaque intraluminal device

Publications (1)

Publication Number Publication Date
EP1317229A2 true EP1317229A2 (de) 2003-06-11

Family

ID=24645894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01984625A Withdrawn EP1317229A2 (de) 2000-09-12 2001-09-12 Selektiv-geätzte, radiopaque, intraluminale vorrichtung

Country Status (4)

Country Link
EP (1) EP1317229A2 (de)
AU (1) AU2002218654A1 (de)
CA (1) CA2421797A1 (de)
WO (1) WO2002022050A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696666B2 (en) 2002-07-03 2004-02-24 Scimed Life Systems, Inc. Tubular cutting process and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036002A1 (en) * 1996-11-04 1999-07-22 Advanced Stent Technologies, Inc. Extendible stent apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019803A1 (en) 1992-03-31 1993-10-14 Boston Scientific Corporation Medical wire
CA2147709C (en) 1994-04-25 1999-08-24 Sharon S. Lam Radiopaque stent markers
US5836964A (en) 1996-10-30 1998-11-17 Medinol Ltd. Stent fabrication method
US6059810A (en) 1995-05-10 2000-05-09 Scimed Life Systems, Inc. Endovascular stent and method
US6602281B1 (en) * 1995-06-05 2003-08-05 Avantec Vascular Corporation Radially expansible vessel scaffold having beams and expansion joints
US5607442A (en) * 1995-11-13 1997-03-04 Isostent, Inc. Stent with improved radiopacity and appearance characteristics
US5807404A (en) 1996-09-19 1998-09-15 Medinol Ltd. Stent with variable features to optimize support and method of making such stent
NO311781B1 (no) * 1997-11-13 2002-01-28 Medinol Ltd Flerlags-stenter av metall
EP0945107A3 (de) * 1998-01-23 2000-01-19 Arterial Vascular Engineering, Inc. Spiralförmige Stent

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036002A1 (en) * 1996-11-04 1999-07-22 Advanced Stent Technologies, Inc. Extendible stent apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0222050A2 *

Also Published As

Publication number Publication date
CA2421797A1 (en) 2002-03-21
WO2002022050A9 (en) 2003-09-12
WO2002022050A2 (en) 2002-03-21
WO2002022050A3 (en) 2002-09-12
AU2002218654A1 (en) 2002-03-26

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Legal Events

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

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AX Request for extension of the european patent

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RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BOSTON SCIENTIFIC IRELAND LIMITED, BARBADOS HEAD O

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BOSTON SCIENTIFIC LIMITED

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Effective date: 20070628

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

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18D Application deemed to be withdrawn

Effective date: 20130403