CA2517702A1 - Stent for implantation - Google Patents

Stent for implantation Download PDF

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Publication number
CA2517702A1
CA2517702A1 CA 2517702 CA2517702A CA2517702A1 CA 2517702 A1 CA2517702 A1 CA 2517702A1 CA 2517702 CA2517702 CA 2517702 CA 2517702 A CA2517702 A CA 2517702A CA 2517702 A1 CA2517702 A1 CA 2517702A1
Authority
CA
Canada
Prior art keywords
stent
coating
wire
rod
caps
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
CA 2517702
Other languages
French (fr)
Other versions
CA2517702C (en
Inventor
Shay Lavelle
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.)
Cook Ireland Ltd
Cook Inc
Original Assignee
Cook Ireland Ltd
Cook 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 Cook Ireland Ltd, Cook Inc filed Critical Cook Ireland Ltd
Priority to CA002517702A priority Critical patent/CA2517702C/en
Publication of CA2517702A1 publication Critical patent/CA2517702A1/en
Application granted granted Critical
Publication of CA2517702C publication Critical patent/CA2517702C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/008—Implant devices for drainage of body fluids from one part of the body to another pre-shaped, for use in the urethral or ureteral tract
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • 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
    • A61F2/88—Stents 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 formed as helical or spiral coils
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L31/00—Materials 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
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L31/00—Materials 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
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L31/00—Materials 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
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/16—Biologically active materials, e.g. therapeutic substances
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2002/047—Urethrae
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/402—Anaestetics, analgesics, e.g. lidocaine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/42—Anti-thrombotic agents, anticoagulants, anti-platelet agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/424—Anti-adhesion agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
    • A61L2300/606—Coatings

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Transplantation (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Otolaryngology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Urology & Nephrology (AREA)
  • Inorganic Chemistry (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A stent is made from a coiled wire and is very smooth along its length and as well its ends. The stent is thus highly atraumatic to patients, and because of its smooth surfaces, it presents a surface to which it is difficult for microbes to cling. The stent may be used in a minimally invasive procedure, such as for a ureteral stent, and may also be used percutaneously. Similar stents may be used in other body areas, such as in draining the biliary tract, the gastro-intestinal tract, hepatic procedures, and in vascular procedures as well.

Claims (20)

1. A kit for placing a stent, the kit comprising:
a wire guide;
a catheter securable to an access sheath, the catheter further comprising a connector at a proximal end of the catheter; and a stent for placing in a body passage of a patient, wherein the stent comprises a hollow coiled wire with an internal lumen, the internal lumen communicating outside the coiled wire through small spaces between adjacent coils, and wherein the stent further comprises a distal end with a distal pigtail portion and a proximal end with a proximal pigtail portion, each pigtail portion comprising an end-cap, the end caps secured to the wire and joined to an internal rod.
2. The kit of Claim 1, wherein the body passage is a ureter, the access sheath is a ureteral access sheath, the catheter is suitable for advancing through the ureter, and the stent is a ureteral stent.
3. The stent of Claim 1, wherein the internal rod is hollow and comprises a lumen extending through the rod and the end caps.
4. The stent of Claim 1, wherein the stent has been smoothed by an electropolishing process, and further comprising a coating applied to the wire or to the stent.
5. The kit of Claim 1, further comprising a coating on the stent, the coating comprising an antimicrobial, antiencrustation, analgesic or anesthetic compound.
6. The kit of Claim 1, further comprising a coating applied via a vacuum process.
7. A stent, comprising:

a hollow coiled wire, the coil having an internal lumen, the internal lumen communicating outside the coiled wire through small spaces between adjacent coils, the coiled wire further comprising a distal pigtail portion and a proximal pigtail portion; and a distal cap on a distal end and a proximal cap on a proximal end of the coiled wire, the caps secured to the wire and also secured with a rod between the caps.
8. The stent of Claim 7, wherein at least one of the hollow coiled wire and the internal wire are made from MP35N or MP 159.
9. The stent of Claim 7, further comprising a first coating on the wire or on the stent, and a second coating of a drug.
10. The stent of Claim 7, wherein the rod is hollow and further comprises a lumen extending through the rod and communicating with at least one orifice in one of the caps.
11. The stent of Claim 7, wherein the rod is hollow and further comprises a lumen extending through the rod and communicating with at least one orifice in at least one of the caps, and a fluid connector connected to the at least one of the caps, the fluid connector communicating with the at least one orifice.
12. The kit of claim 7, further comprising at least one coating on the stent including an antimicrobial, antiencrustation, analgesic or anesthetic compound.
13. A method of preparing a stent suitable for implantation, the method comprising:
winding a wire coil;
inserting a rod into the wound coil;
14 attaching at least one end cap to the coil or to the rod; and electropolishing the stent.
14. The method of Claim 13, further comprising coating the stent with a polymeric or lubricious coating.
15. The method of Claim 13, further comprising coating the stent or a polymeric coating of the stent with an anti-encrustation, antimicrobial, analgesic or anesthetic drug.
16. The method of Claim 13, wherein the wire is selected from the group consisting of MP35N, MP 159, Astroloy M, Inconel 625, 316 stainless steel, 35N
LT, Biodur 108, titanium, and Hastelloy S.
17. The method of Claim 13, wherein the at least one end cap further comprises end caps on a distal end and a proximal end of the stent, each end cap further comprising an orifice, and the rod further comprises a lumen extending through the stent and connected to the end caps.
18. The method of Claim 13, wherein the at least one end cap comprises two end caps and the rod further comprises a lumen extending between orifices of the two end caps, and further comprising a fluid connector attached to at least one of the two end caps.
19. The method of Claim 13, further comprising coating the wire with a coating material.
20. The method of Claim 13, further comprising coating the wire or the stent with a coating and then vacuum-impregnating the stent with a coating of heparin or other drug.
CA002517702A 2005-08-31 2005-08-31 Stent for implantation Active CA2517702C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002517702A CA2517702C (en) 2005-08-31 2005-08-31 Stent for implantation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002517702A CA2517702C (en) 2005-08-31 2005-08-31 Stent for implantation

Publications (2)

Publication Number Publication Date
CA2517702A1 true CA2517702A1 (en) 2007-02-28
CA2517702C CA2517702C (en) 2009-12-15

Family

ID=37806500

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002517702A Active CA2517702C (en) 2005-08-31 2005-08-31 Stent for implantation

Country Status (1)

Country Link
CA (1) CA2517702C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013169879A1 (en) * 2012-05-09 2013-11-14 Cook Medical Technologies Llc Coated medical devices comprising a water - insoluble therapeutic agent and an additive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013169879A1 (en) * 2012-05-09 2013-11-14 Cook Medical Technologies Llc Coated medical devices comprising a water - insoluble therapeutic agent and an additive
CN104363891A (en) * 2012-05-09 2015-02-18 库克医药技术有限责任公司 Coated medical devices comprising a water-insoluble therapeutic agent and an additive

Also Published As

Publication number Publication date
CA2517702C (en) 2009-12-15

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