DE10223399B4 - Vascular support (STENT) and method of making such a vascular support - Google Patents

Vascular support (STENT) and method of making such a vascular support

Info

Publication number
DE10223399B4
DE10223399B4 DE10223399A DE10223399A DE10223399B4 DE 10223399 B4 DE10223399 B4 DE 10223399B4 DE 10223399 A DE10223399 A DE 10223399A DE 10223399 A DE10223399 A DE 10223399A DE 10223399 B4 DE10223399 B4 DE 10223399B4
Authority
DE
Germany
Prior art keywords
support
vascular
support elements
vascular support
characterized
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.)
Expired - Fee Related
Application number
DE10223399A
Other languages
German (de)
Other versions
DE10223399A1 (en
Inventor
Hans Haindl
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.)
Haindl Hans
Original Assignee
Haindl Hans
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 Haindl Hans filed Critical Haindl Hans
Priority to DE10223399A priority Critical patent/DE10223399B4/en
Publication of DE10223399A1 publication Critical patent/DE10223399A1/en
Application granted granted Critical
Publication of DE10223399B4 publication Critical patent/DE10223399B4/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/89Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L31/00Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/148Materials at least partially resorbable by the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents 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
    • A61F2/91Stents 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/825Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having longitudinal struts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2210/00Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0004Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0091Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/003Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in adsorbability or resorbability, i.e. in adsorption or resorption time

Abstract

Vascular support (STENT) for supporting a vessel wall,
With support elements arranged side by side in the axial direction, which are held in the axial direction at a distance from each other by a foil (12) enclosing the support elements made of resorbable material,
characterized in that the film has openings.

Description

  • The Invention relates to a stent (STENT) The type mentioned in the preamble of claim 1 for supporting a vessel wall and a method according to claim 3 for producing such a vascular support.
  • Vascular supports for support a vessel wall are well known. These are essentially tubular Formations to be supported in a Introduced vessel become. Vascular supports one known type are made of plastic material and are thus permanent expandable. These vascular supports will be usually applied to a balloon catheter and so in the be supported Vessel inserted, where they are then expanded at the appropriate place by means of the balloon. The balloon is then depressurized and removed from the vessel, so that there the expanded vascular support remains and thus a desired Cross section of the vessel ensures.
  • By WO 00/62708 A1 is a vascular support of in the preamble of claim 1 mentioned type, in which the support elements held by a continuous cylinder that is sprayed or be formed from a film or be cage or net shape can. However, a foil prevents the blood flowing through the vessel support in contact with the inner wall of the vessel stands. On the other hand, a reticulated cylinder does not prevent atheromatous plaques, in the dilation of vasoconstrictions (Stenoses) are broken or torn, in the interior of the Get to the vessel, causing thrombotic vascular occlusions and Heart attack can come.
  • Of the Invention is based on the object, a vascular support in the preamble of Claim 1 mentioned type, in which a sufficient contact between the blood flowing in the vessel and the vessel inner wall at the same time ensuring the risk of penetration of atheromatous plaques into the bloodstream and thus the emergence of thrombotic Vascular occlusions and reduced or avoided following myocardial infarction.
  • The The problem underlying the invention is characterized by in the features of claim 1 given teaching.
  • Of the The basic idea of the invention is the individual support elements basically by an embracing one Keep foil of absorbable material at a distance from each other, However, this film to be provided with openings by a It will be readily appreciated by one skilled in the art that, on the one hand, the ones which are freed during expansion Parts of the plaques can not get inside the vessel, at the same time Blood from the inside of the vessel to the Pass inside wall of the vessel and can provide this. The invention thus proceeds from the knowledge from that parts the plaques a larger size have as the cells of the blood, so that the plaques retained, however, the blood cells are allowed to pass through.
  • According to one embodiment the invention, the film consists of a nonwoven, in which the spaces between the fibers form the openings.
  • The The invention also relates to a method for producing a vascular support, in the connecting means for the support elements by one of the support elements enclosing, a tube forming film are enclosed. According to this Procedures are first the support elements coated with a polymer and then on a rod at a distance lined up. After that, a solved Polymer the support elements binding applied. After the polymerization of the polymer or the escape of a solvent is the thus prepared vascular support of deducted from the staff. To facilitate this removal; is according to a Further development of the method according to the invention for stringing the support elements a rod of elastically or plastically stretchable material used. By Stretching the rod reduces its cross section, which is the Removal of the vascular support facilitates. The solved one Polymer be added before coating leachable particles and this after the solvent has escaped or the polymerization dissolved out, so that a porous structure is formed.
  • Based the drawing, the invention will be explained in more detail.
  • The drawing shows a largely schematic and in longitudinal section a vascular support consisting of annular support elements 2 made of plastic material passing through a film forming a tube 4 made of resorbable material are held parallel spaced from each other. The foil 4 has a porous structure so that plaque material can not pass, but blood cells can pass.

Claims (4)

  1. Vascular support (STENT) for supporting a vessel wall, - with support elements arranged side by side in the axial direction, which are supported by a foil enclosing the support elements (FIG. 12 ) are held in the axial direction at a distance from absorbable material, characterized in that the film has openings.
  2. Vascular support after Claim 1, characterized in that the film consists of a nonwoven consists.
  3. Method of making a vascular support Claim 1, characterized in that the support elements with a polymer coated, strung on a rod spaced, with a dissolved or a multi-component polymer, the support elements connecting coated and after drying or polymerization, the vascular support of is stripped off the rod, wherein the polymer admixed leachable particles before coating and these are dissolved out after the polymerization.
  4. Method of making a vascular support Claim 3, characterized in that for the alignment of the support elements a rod of elastically or plastically stretchable material is used.
DE10223399A 2002-05-25 2002-05-25 Vascular support (STENT) and method of making such a vascular support Expired - Fee Related DE10223399B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10223399A DE10223399B4 (en) 2002-05-25 2002-05-25 Vascular support (STENT) and method of making such a vascular support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10223399A DE10223399B4 (en) 2002-05-25 2002-05-25 Vascular support (STENT) and method of making such a vascular support

Publications (2)

Publication Number Publication Date
DE10223399A1 DE10223399A1 (en) 2003-12-11
DE10223399B4 true DE10223399B4 (en) 2006-06-14

Family

ID=29432325

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10223399A Expired - Fee Related DE10223399B4 (en) 2002-05-25 2002-05-25 Vascular support (STENT) and method of making such a vascular support

Country Status (1)

Country Link
DE (1) DE10223399B4 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7985249B2 (en) 2002-05-08 2011-07-26 Abbott Laboratories Corporation Endoprosthesis having foot extensions
US8048146B2 (en) 2003-05-06 2011-11-01 Abbott Laboratories Endoprosthesis having foot extensions
WO2011151318A1 (en) 2010-06-02 2011-12-08 Nonwotecc Medical Gmbh Device for placement in a hollow organ, in particular for holding open said hollow organ and method for producing such device
US8075610B2 (en) 2002-05-06 2011-12-13 Abbott Laboratories Endoprosthesis for controlled contraction and expansion
US8109991B2 (en) 2003-05-06 2012-02-07 Abbot Laboratories Endoprosthesis having foot extensions
US8128682B2 (en) 2005-04-11 2012-03-06 Cook Medical Technologies Llc Medical device with tensionably attached remodelable material
US8382821B2 (en) 1998-12-03 2013-02-26 Medinol Ltd. Helical hybrid stent
US9039755B2 (en) 2003-06-27 2015-05-26 Medinol Ltd. Helical hybrid stent
US9155639B2 (en) 2009-04-22 2015-10-13 Medinol Ltd. Helical hybrid stent

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050033399A1 (en) * 1998-12-03 2005-02-10 Jacob Richter Hybrid stent
US6929663B2 (en) * 2003-03-26 2005-08-16 Boston Scientific Scimed, Inc. Longitudinally expanding medical device
DE10333511A1 (en) * 2003-07-17 2005-02-03 Biotronik Meß- und Therapiegeräte GmbH & Co. Ingenieurbüro Berlin Stent and stent delivery system, comprising balloon enveloped by two rings made of specifically bent wires
EP1737391A2 (en) * 2004-04-13 2007-01-03 Cook Incorporated Implantable frame with variable compliance
DE102004045224B4 (en) * 2004-09-17 2010-12-30 Thilo Dr. Fliedner support prosthesis
EP1834606B1 (en) * 2006-03-16 2013-04-24 CID S.p.A. Stents
WO2008036543A2 (en) * 2006-09-18 2008-03-27 C.R. Bard, Inc. Single layer eptfe and discrete bio-resorbable rings
US7637940B2 (en) * 2007-07-06 2009-12-29 Boston Scientific Scimed, Inc. Stent with bioabsorbable membrane
US9572692B2 (en) 2009-02-02 2017-02-21 Abbott Cardiovascular Systems Inc. Bioabsorbable stent that modulates plaque geometric morphology and chemical composition
US20100198330A1 (en) * 2009-02-02 2010-08-05 Hossainy Syed F A Bioabsorbable Stent And Treatment That Elicits Time-Varying Host-Material Response
US9839537B2 (en) 2012-03-07 2017-12-12 Abbott Cardiovascular Systems Inc. Bioresorbable polymer scaffold treatment of coronary and peripheral artery disease in diabetic patients

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015151A1 (en) * 1998-09-16 2000-03-23 Isostent, Inc. Linkage stent
WO2000062708A1 (en) * 1999-04-15 2000-10-26 Mayo Foundation For Medical Education And Research Multi-section stent
DE19923133A1 (en) * 1999-05-19 2000-11-23 Malte Neus Support for blood or other vessels, which can radially expand or contract without decrease in length comprises flexibly linked zigzag form ring elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015151A1 (en) * 1998-09-16 2000-03-23 Isostent, Inc. Linkage stent
WO2000062708A1 (en) * 1999-04-15 2000-10-26 Mayo Foundation For Medical Education And Research Multi-section stent
DE19923133A1 (en) * 1999-05-19 2000-11-23 Malte Neus Support for blood or other vessels, which can radially expand or contract without decrease in length comprises flexibly linked zigzag form ring elements

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8382821B2 (en) 1998-12-03 2013-02-26 Medinol Ltd. Helical hybrid stent
US8075610B2 (en) 2002-05-06 2011-12-13 Abbott Laboratories Endoprosthesis for controlled contraction and expansion
US7985249B2 (en) 2002-05-08 2011-07-26 Abbott Laboratories Corporation Endoprosthesis having foot extensions
US8048146B2 (en) 2003-05-06 2011-11-01 Abbott Laboratories Endoprosthesis having foot extensions
US8109991B2 (en) 2003-05-06 2012-02-07 Abbot Laboratories Endoprosthesis having foot extensions
US8915954B2 (en) 2003-05-06 2014-12-23 Abbott Laboratories Endoprosthesis having foot extensions
US9039755B2 (en) 2003-06-27 2015-05-26 Medinol Ltd. Helical hybrid stent
US9456910B2 (en) 2003-06-27 2016-10-04 Medinol Ltd. Helical hybrid stent
US8128682B2 (en) 2005-04-11 2012-03-06 Cook Medical Technologies Llc Medical device with tensionably attached remodelable material
US9155639B2 (en) 2009-04-22 2015-10-13 Medinol Ltd. Helical hybrid stent
WO2011151318A1 (en) 2010-06-02 2011-12-08 Nonwotecc Medical Gmbh Device for placement in a hollow organ, in particular for holding open said hollow organ and method for producing such device

Also Published As

Publication number Publication date
DE10223399A1 (en) 2003-12-11

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R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20121201