CA2472374A1 - Endovascular device for entrapment of particulate matter and method for use - Google Patents

Endovascular device for entrapment of particulate matter and method for use Download PDF

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Publication number
CA2472374A1
CA2472374A1 CA002472374A CA2472374A CA2472374A1 CA 2472374 A1 CA2472374 A1 CA 2472374A1 CA 002472374 A CA002472374 A CA 002472374A CA 2472374 A CA2472374 A CA 2472374A CA 2472374 A1 CA2472374 A1 CA 2472374A1
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CA
Canada
Prior art keywords
outer structure
blood vessel
inner filter
filtering
particulate matter
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
CA002472374A
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French (fr)
Other versions
CA2472374C (en
Inventor
Dov Shimon
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Keystone Heart Ltd
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2759746A priority Critical patent/CA2759746C/en
Publication of CA2472374A1 publication Critical patent/CA2472374A1/en
Application granted granted Critical
Publication of CA2472374C publication Critical patent/CA2472374C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/0105—Open ended, i.e. legs gathered only at one side
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/283—Invasive
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/011—Instruments for their placement or removal
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2002/016—Filters implantable into blood vessels made from wire-like elements
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2002/018—Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated structures
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0067—Three-dimensional shapes conical
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0073—Quadric-shaped
    • A61F2230/008—Quadric-shaped paraboloidal
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0095—Saddle-shaped
    • 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
    • A61F2250/0014—Special 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
    • A61F2250/0015—Special 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 density or specific weight
    • A61F2250/0017—Special 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 density or specific weight differing in yarn density
    • 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
    • A61F2250/0014—Special 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
    • A61F2250/0023—Special 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 porosity

Abstract

A device and method for protecting a blood vessel. The device (7) may be a stent (2), for insertion in a large artery such as the ascending aorta (1), and may be combined with a filter (16). The device includes an outer wire frame rather than a stent.The stent may be made of at least one layer of mesh (12), which is typically attached or mounted to the arterial wall. Typically the size of the apertures of the mesh (12) at the top portion of the stent is smaller than the bottom portion of the stent. The device and method are particularly useful in preventing blockages of flow to the brain, but have other uses as well. An electric charge (14) may be placed on the device, for example, to prevent blood components from collecting.

Claims (36)

1. A device for filtering particulate matter in a bodily passage, the device comprising:
an outer structure capable of insertion into the bodily passage; and an inner filter connected to said outer structure.
2. The device of claim 1, wherein said inner filter includes at least a portion extending beyond said outer structure.
3. The device of claim 1, wherein said extended portion includes at least two overlapping leaflets.
4. The device of claim 1, wherein said inner filter includes at least a partially flexible portion.
5. The device of claim 1, wherein said inner filter is flexible.
6. The device of claim 1, wherein said outer structure includes a mesh.
7. The device of claim 1, wherein said outer structure includes a stent.
8. The device of claim 1, wherein said outer structure includes holes of a first size and said inner filter includes holes of a second size, said first size being larger than said second size.
9. The device of claim 1, wherein the outer structure is capable of insertion into a blood vessel.
10. The device of claim 1 comprising an anchoring structure.
11. The device of claim 1 comprising an anchoring pin capable of anchoring the device to a blood vessel.
12. The device of claim 1 comprising a valve located on the inner filter.
13. The device of claim 12 wherein the valve includes a plurality of flaps.
14. The device of claim 1 comprising an electric charge producing material.
15. The device of claim 1 wherein the inner filter extends over only a portion of the outer structure.
16. The device of claim 1 wherein the outer structure is a wire frame.
17. The device of claim 1 wherein the inner filter is comprised of a plurality of flat portions,
18. A device for filtering in a bodily passage, the device comprising:
an outer structure capable of insertion into the bodily passage; and an inner filter disposed within said outer structure and extending beyond said outer structure.
19. A device for filtering in a bodily passage, the device comprising:
all outer structure capable of insertion into the bodily passage; and an inner filter disposed within said outer structure and including at least two overlapping leaflets.
20. A device for filtering in a bodily passage, the device comprising:
an inner filter means for filtering particulate; and an outer stent means for holding said inner filter means.
21. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
inserting a device into the blood vessel, said device including at least:
an outer structure capable of insertion into the blood vessel; and an inner filter corrected anchored to said outer structure.
22. The method of claim 21 comprising:
inserting said device into the blood vessel in a surgical procedure, allowing said device to remain in the blood vessel after said insertion procedure is complete.
23. The method of claim 21 comprising:
inserting an additional filter into said device during a surgical procedure;
and removing said additional filter after said surgical procedure is complete.
24. The method of claim 21 comprising treating the patient with a drug for endocarditis.
25. The method of claim 21, the method comprising treating the patient with a drug for blood clots.
26. The method of claim 21, the method comprising dilating a valve of the patient with a catheter.
27. The method of claim 21, comprising inserting the device to protect against cardio embolic stroke.
28. The method of claim 21, further comprising removing the inner filter without removing the outer structure.
29. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
inserting a device into the blood vessel during a surgical procedure, said device including at least:
an outer structure capable of insertion into the blood vessel; and an inner filter connected anchored to said outer structure; and, keeping said device to remain in the blood vessel after said procedure is complete.
30. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
inserting a device into the blood vessel during a surgical procedure, said device including at least:
an outer structure capable of insertion into the blood vessel; and an inner filter connected anchored to said outer structure; and, inserting an additional filter into said device.
31. A device for filtering particulate hatter in a bodily passage, the device comprising:
an outer structure for insertion into the bodily passage, said outer structure conforming to a shape of the bodily passage; and an inner filter for being anchored to said outer structure and for filtering the particulate matter, said inner filter having a portion extending beyond said outer structure, said extended portion being at least partially flexible.
32. The device of claim 31, wherein said extended portion comprises two overlapping leaflets.
33. The device of claim 31, wherein said outer structure has holes of a first size and said inner filter includes holes of a second size, said first size being larger than said second size.
34. A method for filtering particulate matter from a blood vessel, the method comprising:
providing a device for being inserted into the blood vessel, said device featuring:
an outer structure for conforming to a shape of the blood vessel; and an inner filter for being anchored to said outer structure and for filtering the particulate matter, said inner filter having a portion extending beyond said outer structure, said extended portion being at least partially flexible;
inserting said device into the blood vessel during all insertion procedure;
and allowing said device to remain in the blood vessel after said insertion procedure is complete for filtering the particulate matter.
35. The method of claim 34, further comprising:
inserting an additional filter into said device during a surgical procedure;
and removing said additional filter after said surgical procedure is complete.
36. The method of claim 34, further comprising removing the inner filter without removing the outer structure.
CA2472374A 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use Expired - Lifetime CA2472374C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2759746A CA2759746C (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US33583801P 2001-12-05 2001-12-05
US60/335,838 2001-12-05
PCT/IL2002/000984 WO2003047648A2 (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2759746A Division CA2759746C (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use

Publications (2)

Publication Number Publication Date
CA2472374A1 true CA2472374A1 (en) 2003-06-12
CA2472374C CA2472374C (en) 2012-02-14

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CA2759746A Expired - Lifetime CA2759746C (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use
CA2472374A Expired - Lifetime CA2472374C (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use

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CA2759746A Expired - Lifetime CA2759746C (en) 2001-12-05 2002-12-05 Endovascular device for entrapment of particulate matter and method for use

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US (4) US7232453B2 (en)
EP (2) EP1461112B1 (en)
AU (1) AU2002358946A1 (en)
CA (2) CA2759746C (en)
ES (1) ES2399091T3 (en)
WO (1) WO2003047648A2 (en)

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US20170224462A1 (en) 2017-08-10
US7232453B2 (en) 2007-06-19
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US20110106137A1 (en) 2011-05-05
CA2759746C (en) 2018-05-22
US20060293706A1 (en) 2006-12-28
US9668849B2 (en) 2017-06-06
US10624732B2 (en) 2020-04-21
CA2472374C (en) 2012-02-14
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EP1461112A2 (en) 2004-09-29
AU2002358946A1 (en) 2003-06-17
CA2759746A1 (en) 2003-06-12
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EP1461112A4 (en) 2010-09-22

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