DE29880158U1 - Embolieschutzgerät - Google Patents

Embolieschutzgerät

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Publication number
DE29880158U1
DE29880158U1 DE29880158U DE29880158U DE29880158U1 DE 29880158 U1 DE29880158 U1 DE 29880158U1 DE 29880158 U DE29880158 U DE 29880158U DE 29880158 U DE29880158 U DE 29880158U DE 29880158 U1 DE29880158 U1 DE 29880158U1
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Prior art keywords
filter body
filter
distal
proximal
distal end
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Expired - Lifetime
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DE29880158U
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Salviac Ltd
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Salviac Ltd
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26320116&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE29880158(U1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Salviac Ltd filed Critical Salviac Ltd
Publication of DE29880158U1 publication Critical patent/DE29880158U1/de
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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
    • 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
    • A61F2/0108—Both ends closed, i.e. legs gathered at both ends
    • 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
    • A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22065—Functions of balloons
    • A61B2017/22067—Blocking; Occlusion
    • 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
    • A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
    • A61F2002/015—Stop means therefor
    • 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
    • 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
    • A61F2230/0069—Three-dimensional shapes cylindrical
    • 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
    • A61F2230/0093—Umbrella-shaped, e.g. mushroom-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
    • 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
    • A61F2230/0097—Harpoon-shaped

Description

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Claims (103)

1. Vaskulärfiltrationsgerät zum Entfernen vom Emboliematerial in Körperfluid, wobei das Gerät umfaßt:
ein Zuführungssystem, welches eine Längsachse, distale und proximale Bereiche aufweist, wobei der distale Bereich des Zuführungssystems entfernbar in das Gefäßsystem eines Patienten verschiebbar ist;
einen zusammenfaltbaren Filterkörper (1), der eine Längsachse, proximale und di­ stale Enden hat und der außerdem eine zusammenfaltbare Stellung und einen expandierte ent­ faltete Stellung hat, wobei die zusammengefaltete Stellung das Zuführen und das Zurückzie­ hen des Filterkörpers aus dem Vaskulärsystem eines Patienten erlaubt;
wobei der Filterkörper, wenn dieser in der expandierten Stellung ist, einen Innen­ raum festlegt;
zumindest einen Fluideinlaß (7) am proximalen Ende des Filterkörpers, wobei der Einlaß offen ist, um Blut und Emboliematerial in den Innenraum zu lassen, wenn der Filter­ körper in der expandierten Stellung ist, und im wesentlichen den Fluidfluß verschließt, wenn der Filterkörper in der zusammengefalteten Stellung ist;
mehrere Auslaßöffnungen (8) am distalen Ende des Filterkörpers, wobei die Aus­ laßöffnungen offen zum Fluidfluß vom Innenraum sind, wenn der Filterkörper in der expan­ dierten Stellung ist;
wobei die Auslaßöffnungen (8) bemessen sind, um den Durchlaß von Blut zuzu­ lassen, jedoch unerwünschtes Emboliematerial innerhalb des Filterkörpers (1) zurückzuhal­ ten;
wobei der Filterkörper zwischen der zusammengefalteten und der expandierten Stellung mittels einer Relativbewegung des Filterzuführungssystems in bezug auf den Filter­ körper bewegt wird; und
das proximale Ende (7) des Filterkörpers beim Übergang zur zusammengefalteten Stellung zusammenfaltbar ist, um zunächst den zumindest einen Fluideinlaß im wesentlichen zu verschließen, um das Zurückhalten von jeglichem angesammelten Emboliematerial im Innenraum sicherzustellen und um dann den Rest des Filterkörpers zusammenzufalten.
2. Gerät nach Anspruch 1, wobei das proximale Ende des Filterkörpers zusam­ menfaltbar ist, bevor das distale Ende des Filterkörpers während des Übergangs zwischen der expandierten und zurückgezogenen Stellung zusammengefaltet wird.
3. Einrichtung nach Anspruch 1 oder 2, wobei das Zuführungssystem ein Rohrteil (3) umfaßt, wobei der Filterkörper zwischen der zusammengefalteten und expandierten Stel­ lung über eine Relativbewegung des Rohrteils in bezug auf den Filterkörper bewegt wird.
4. Gerät nach Anspruch 1 oder 2, wobei das Zuführungssystem einen Leitdraht (2) umfaßt, wobei der Filterkörper über eine Relativbewegung des Leitdrahts (2) in bezug auf den Filterkörper bewegt wird.
5. Gerät nach Anspruch 4, wobei der Leitdraht ein fester Leitdraht ist.
6. Einrichtung nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine allgemein rohrförmige Form hat.
7. Gerät nach einem der vorhergehenden Ansprüche, wobei das proximale Ende des Filterkörpers nach außen und zum distalen Ende hin abgeschrägt ist, wenn dieser in der expandierten Stellung ist.
8. Gerät nach einem der vorhergehenden Ansprüche, wobei das distale Ende (23) des Filterkörpers nach außen und zum proximalen Ende hin abgeschrägt ist.
9. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper einen allgemein zylindrischen Bereich zwischen dem proximalen und dem distalen Ende hat.
10. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper ei­ nen weichen distalen Bereich hat, um einen atraumatischen Transport durch das Vaskulärsy­ stem zu unterstützen.
11. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper durch eine allgemein langgestreckte Form festgelegt ist, die eine axiale Abmessung hat, die größer ist als die Querabmessung, wenn dieser in einer expandierten Stellung ist.
12. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper ei­ nen allgemein kreisförmigen querlaufenden Querschnitt und einen damit in Verbindung ste­ henden Umfang hat, und zumindest eine Nut (125) um den damit verbundenen Umfang ange­ ordnet ist.
13. Gerät nach einem der vorhergehenden Ansprüche, wobei die Filterkörper- Auslaßlöcher so bemessen sind, um Emboliematerial einer Größe einzufangen, das größer als 100 µm ist.
14. Gerät nach Anspruch 13, wobei die Filterkörper-Auslaßlöcher bemessen sind, Emboliematerial mit einer Größe von mehr als 200 µm aufzufangen.
15. Gerät nach Anspruch 14, wobei die Filterkörper-Auslaßlöcher so bemessen sind, Emboliematerial einer Größe von mehr als 500 µm aufzufangen.
16. Gerät nach einem der vorhergehenden Ansprüche, wobei die Auslaßöffnungen allgemein kreisförmig sind.
17. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem eine Rohrfilter-Herausholeinrichtung umfaßt, die ein offenes distales Ende hat, um den Filterkörper im zusammengefalteten Zustand aufzunehmen, wobei das offene distale Ende der Filterherausholeinrichtung mit dem proximalen Ende des Filterkörpers in Eingriff kommen kann, um dadurch zunächst den zumindest einen Fluideinlaß im wesentlichen zu verschließen, und in bezug auf den Filterkörper verschiebbar ist, um fortschreitend den Rest des Filterkör­ pers zusammenzufalten und um den Filterkörper innerhalb der Herausholeinrichtung aufzu­ nehmen.
18. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem außerdem einen Aufbewahrungsbereich für den Filterkörper umfaßt, wenn der Filterkör­ per in der zusammengefalteten Stellung ist.
19. Gerät nach Anspruch 18, wobei der Aufbewahrungsbereich außerdem ein of­ fenes distales Ende umfaßt, welches so angeordnet ist, daß das proximale Ende des Filterkör­ pers das offene distale Ende während des Übergangs des Filterkörpers von der expandierten Stellung in die zusammengefaltete Rückzugstellung erfaßt.
20. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem einen Zuführungskatheter umfaßt, wobei ein Ende des Zuführungskatheters einen Auf­ bewahrungsbereich umfaßt.
21. Gerät nach einem der vorhergehenden Ansprüche, welches außerdem einen Heraushol-Katheter umfaßt, wobei ein Ende des Heraushol-Katheters einen Aufbewahrungs­ bereich umfaßt.
22. Gerät nach einem der Ansprüche 18 bis 21, wobei der Aufbewahrungsbereich eine Hülse ist.
23. Gerät nach Anspruch 22, wobei die Hülse expandierbar ist, um das Filter in der zusammengefalteten Rückzugstellung unterzubringen.
24. Gerät nach einem der Ansprüche 4 bis 23, wobei der Filterkörper verschiebbar auf dem Leitdraht angeordnet ist.
25. Gerät nach Anspruch 24, welches zumindest ein Halteelement (63, 64) umfaßt, um den Bereich der Längsbewegung des Filterkörpers (1) auf dem Leitdraht zu begrenzen.
26. Gerät nach Anspruch 25, wobei zumindest eines des zumindest einen Halte­ elements (66) innerhalb des Innenraums angeordnet ist, wenn - bei Verwendung - der Filter­ körper in der expandierten entfalteten Stellung ist.
27. Gerät nach Anspruch 25 oder 26, wobei zumindest ein Halteelement auf dem Leitdraht befestigt ist.
28. Gerät nach einem der Ansprüche 25 bis 28, wobei zumindest ein Halteelement metallisch ist.
29. Gerät nach einem der Ansprüche 25 bis 28, wobei zumindest ein Halteelement aus einem Polymeren ist.
30. Gerät nach einem der Ansprüche 25 bis 28, wobei zumindest ein Halteelement als eine Stufe im Leitdraht gebildet ist.
31. Gerät nach einem der Ansprüche 25 bis 28, wobei zumindest ein Halteelement bemessen ist, sich dem Innendurchmesser des Zuführungskatheters anzupassen.
32. Gerät nach einem der Ansprüche 25 bis 31, wobei der Filterkörper eine Muffe (35) umfaßt, die verschiebbar auf dem Leitdraht angeordnet ist.
33. Gerät nach Anspruch 32, wobei zumindest ein Halteelement zumindest ein er­ stes und ein zweites Halteelement umfaßt, wobei die Länge der Muffe kleiner ist als der Ab­ stand zwischen den Halteelementen, wobei der Filterkörper auf der Muffe befestigt ist.
34. Gerät nach Anspruch 32 oder 33, wobei das proximale Einlaßende des Filter­ körpers an der Muffe befestigt ist und das distale Ende des Filterkörpers auf der Muffe ver­ schiebbar befestigt ist.
35. Gerät nach einem der Ansprüche 32 bis 34, wobei das distale Ende des Filter­ körpers an einem Ring befestigt ist, der längs der Muffe verschiebbar ist.
36. Gerät nach einem der Ansprüche 32 bis 35, wobei die Muffe außerdem eine Führungsolive (65) distal zum Filterkörper umfaßt, die zum distalen Ende hin und nach innen abgeschrägt ist.
37. Gerät nach Anspruch 36, wobei die Führungsolive auf dem Filterträger distal vom Filterkörper vorgesehen ist, wobei die Führungsolive einen Zylinderkörper mit einem abgeschrägten distalen Ende hat, wobei der Zylinderkörper innerhalb des distalen Endes des Entfaltungs-Katheters eingreifen kann, wobei das abgeschrägte distale Ende nach außen vom Entfaltungs-Katheter ragt, um für einen sanften Übergang zwischen dem Katheter und dem Filterträger zu sorgen.
38. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper in bezug auf das Zuführungssystem drehbar ist.
39. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper ei­ nen Filterrahmen umfaßt, wobei der Rahmen zwischen einer zusammengefalteten Position, wenn der Filterkörper in einer zusammengefalteten Stellung ist, und einer ausgedehnten nach außen ragenden Position in der expandierten entfalteten Stellung bewegbar ist.
40. Gerät nach Anspruch 39, wobei der Filterkörper auf einer Filterträgermuffe befestigt und der Rahmen auf der Muffe am proximalen Ende des Filterkörpers befestigt ist.
41. Gerät nach Anspruch 40, wobei der Rahmen in die Muffe an einem distalen Ende des Filterkörpers verschiebbar eingreift.
42. Gerät nach einem der Ansprüche 39 bis 41, wobei der Rahmen in eine normal sich erstreckende Position vorgespannt ist.
43. Gerät nach einem der Ansprüche 39 bis 42, wobei der Rahmen Lagerarme umfaßt.
44. Gerät nach einem der Ansprüche 39 bis 43, wobei der Rahmen mit mehrere zusammenfaltbare Arme umfaßt, die ein proximales und ein distales Ende haben, wobei sich die Arme nach außen und distal vom proximalen Ende des Filterkörpers erstrecken, um die Abschrägung des proximalen Endes des Filterkörpers festzulegen.
45. Gerät nach einem der Ansprüche 39 bis 44, wobei der Rahmen aus einem Formgedächtnis- oder Elastikgedächtnis-Material gebildet ist.
46. Gerät nach Anspruch 45, wobei der Rahmen aus Nitinol besteht.
47. Gerät nach einem der Ansprüche 43 bis 46, wobei die Einlaßöffnungen zu­ mindest teilweise durch die Arme festgelegt sind.
48. Gerät nach einem der Ansprüche 44 bis 46, wobei die proximalen Enden der Arme sich im wesentlichen radial nach außen in einer distalen Richtung von der Längsachse des Filterkörpers erstrecken.
49. Gerät nach Anspruch 48, wobei die distalen Enden der Arme sich im wesent­ lichen radial nach außen in einer proximalen Richtung von der Längsachse des Filterkörpers erstrecken.
50. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper aus einem Maschenmaterial gebildet ist.
51. Gerät nach einem der Ansprüche 1 bis 49, wobei der Filterkörper aus einem gewebten Material gebildet ist.
52. Gerät nach einem der Ansprüche 1 bis 49, wobei der Filterkörper aus einem perforierten Filmmaterial gebildet ist.
53. Gerät nach einem der Ansprüche 1 bis 49, wobei der Filterkörper aus einem Material, welches eine durchlässige Struktur hat, gebildet ist.
54. Gerät nach einem der Ansprüche 1 bis 49 oder 53, wobei der Filterkörper aus einem Polymer-Schaum-Material gebildet ist.
55. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine Aufnahmeeinrichtung umfaßt, um unerwünschtes Emboliematerial im Filterkörper einzufan­ gen.
56. Gerät nach Anspruch 55, wobei die Aufnahmeeinrichtung zusätzliche Auf­ nahmewege innerhalb des Filterkörpers umfaßt.
57. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine dreidimensionale Form festlegt.
58. Gerät nach Anspruch 57, wobei der Filterkörper aus einer durchlässigen Po­ lymerstruktur besteht.
59. Gerät nach einem der Ansprüche 52 bis 58, wobei das Material eine Dichte von weniger als 400 kg pro Kubikmeter hat.
60. Gerät nach einem der Ansprüche 52 bis 59, wobei das Material eine Dichte von weniger als 100 kg pro Kubikmeter hat.
61. Gerät nach einem der Ansprüche 52 bis 60, wobei das Material eine Dichte von weniger als 50 kg pro Kubikmeter hat.
62. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine durchlässige Struktur umfaßt, die dimensioniert ist, Emboliematerial im Bereich der Größe von 100 µm bis 3500 µm einzufangen.
63. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper kompressierbar und/oder faltbar ist, um diesen in eine Zuführungseinrichtung zu laden, um den Filterkörper auf eine gewünschte Lage im komprimierten oder gefalteten Zustand zuzu­ führen.
64. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper Material besitzt, welches von seiner Struktur entfernt wurde, um die Kompressierbarkeit zu unterstützen.
65. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper Material hat, welches von seiner Struktur entfernt wurde, um eine spezielle Bemessung in bezug auf die Größe des Emboliematerials, welches einzufangen ist, bereitzustellen.
66. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper Wege durch den Filterkörper hat, die untereinander verbunden sind, so daß die Flußrate durch den Filter maßgeschneidert werden kann.
67. Gerät nach einem der vorhergehenden Ansprüche, welches eine Einrichtung hat, um die Einrichtung über einem medizinischen Leitdraht anzuordnen.
68. Gerät nach Anspruch 67, welches unter einem Ballon- oder Stützzuführungs­ katheter angeordnet werden kann.
69. Gerät nach einem der vorhergehenden Ansprüche, welches eine Einrichtung zum Einführen über Oberschenkel-, Arm-, Radial-, Subklavia- oder andere arterielle Punktur mittels eines Transkatheterzugangs hat.
70. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem einen Zuführungskatheter umfaßt, bei dem eine externe Hülle in Eingriff mit dem Filter oder einem Filterträger stehen kann, um einen Druck während der Zuführung bereitzustellen, und entfernbar ist, um einen maximalen Raum im Vaskulärquerschnitt während einer Ein­ griffsprozedur zuzulassen.
71. Gerät nach Anspruch 70, wobei die externe Hülle mit dem Filterkörper oder Filterträger über eine Verbindungseinrichtung verbunden ist.
72. Gerät nach Anspruch 71, wobei die Verbindungseinrichtung ein entfernbarer Schrumpfschlauch (5) ist.
73. Gerät nach Anspruch 71, wobei die Verbindungseinrichtung eine entfernbare Überschiebemuffe (10) ist.
74. Gerät nach Anspruch 71, wobei die Verbindungseinrichtung ein entfernbarer Clip ist.
75. Gerät nach Anspruch 71, wobei die Verbindungseinrichtung ein Kompressi­ onsverbinder ist.
76. Gerät nach Anspruch 75, wobei der Kompressionsverbinder ein Touhy Borst- Adapter ist.
77. Gerät nach einem der Ansprüche 70 bis 76, wobei der Zuführungskatheter ein Zentrallumen für zumindest einen Teil seiner Länge hat, um zu ermöglichen, diesen über ei­ nen lenkbaren Leitdraht zu ziehen.
78. Gerät nach einem der Ansprüche 79 bis 77, wobei die externe Hülle ausrei­ chend lang ist, um sich zur Außenseite des Gefäßsystems auszudehnen, und proximal entfern­ bar ist, um den Filterkörper vom Katheter zu lösen.
79. Gerät nach einem der Ansprüche 70 bis 78, wobei der Zuführungskatheter eine externe Abdeckung hat, die sich über das Druckelement erstreckt, um eine Filterhalte­ muffe festzulegen.
80. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem einen Zuführungskatheter umfaßt, der ein Federbauteil mit einer lokalisierten schritt­ weise sich vergrößernden Teilung hat, um die Steifigkeitscharakteristik zu ändern, um sich an das Zielvaskulärsystem anzupassen.
81. Gerät nach einem der vorhergehenden Ansprüche, wobei das Zuführungssy­ stem einen Zuführungskatheter umfaßt, der ein Federbauteil hat mit einer lokalisierten all­ mählich ansteigenden Teilung, um die Steifigkeitscharakteristik zu ändern, um sich an das Zielvaskulärsystem anzupassen.
82. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper auf einem zusammenfaltbaren Lagerrahmen befestigt, der zwischen einer zusammengefalteten Position zur Entfaltung und einer erstreckten Gebrauchsposition bewegbar ist, wobei eine Einrichtung vorgesehen ist, die Lagerstruktur in der zusammengefalteten Position zu halten.
83. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine damit in Verbindung stehende Lagerstruktur mit einer vorgeformten spiralförmigen Anord­ nung hat, so daß diese eine radiale Lagerung für den Filterkörper liefert.
84. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine flexible geformte Polymerkomponente umfaßt.
85. Gerät nach Anspruch 84, wobei die geformte polymerische Komponente so konstruiert ist, daß der Fluidfluß mittels der Komponente beim Öffnen der Komponente von der zusammengefalteten Stellung hilft.
86. Gerät nach Anspruch 84 oder 85, wobei die geformte polymerische Kompo­ nente flexibel ist und sich öffnet, um einen Rohrkontakt mit der Vaskulärwand herzustellen, wobei der Druckabfall über der Ausgangsfilterfläche verwendet wird.
87. Gerät nach einem der vorhergehenden Ansprüche, wobei das Filterelement unmittelbar auf einem lenkbaren medizinischen Leitdraht befestigt ist, der eine verschiebbare Hülle enthält, die bewegbar ist, das Filter zu entfalten.
88. Gerät nach einem der vorhergehenden Ansprüche, welches einen medizini­ schen Leitdraht mit einem flexiblen Drahtsegment distal zum Filter enthält, um eine Lenkbar­ keit des Drahts insbesondere vorzusehen, bevor es entfaltet wird.
89. Gerät nach einem der vorhergehenden Ansprüche, welches einen medizini­ schen Leitdraht mit einem weichen distalen Segment enthält, um so einen Kopfabschnitt be­ reitzustellen, der atraumatisch sein wird.
90. Gerät nach einem der vorhergehenden Ansprüche, welches einen Filterkörper hat, der die Unterbringung eines medizinischen Leitdrahts in oder in der Nähe des Außen­ wand des Filterkörpers erlaubt, um das Unterbringen von großen Einlaßlöchern des proxima­ len Einlaßendes des Filterkörpers zu erleichtern.
91. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine Maschenstruktur mit großen proximalen Einlaßlöchern und kleinen distalen Auslaßlöchern umfaßt, wobei die Maschenstruktur auf einen Zuführungskatheter mit kleinem Durchmesser zusammenfaltbar ist und bei Entfaltung auf eine Form expandierbar ist, die durch die Ma­ schenstruktur entweder durch die Formgedächtnischarakteristik oder die Elastikgedächtnis­ charakteristik wieder in Erinnerung gebracht wird.
92. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper eine Maschenstruktur umfaßt, wobei die Ausdehnung des Filterkörpers innerhalb des Gefäßes ver­ anlaßt, daß Blut, das durch das Blutgefäß fließt, durch den Filterkörper fließt, da der Filter­ körper die Wand des Gefäßes erfaßt, um sich an die Form der Gefäßrohrwand anzupassen.
93. Gerät nach einem der vorhergehenden Ansprüche, wobei der Filterkörper ein geflochtenes Fasermaschennetz umfaßt.
94. Gerät nach Anspruch 93, wobei die distalen Auslaßöffnungen durch einen Be­ reich festgelegt sind, der durch eine Reihe von sich kreuzenden, verflochtenen Fasern um­ schlossen ist.
95. Gerät nach Anspruch 93 oder 94, wobei größere proximale Einlaßlöcher durch die Konvergenz der Fasern des Geflechts in wenige Bündel vorgesehen sind, die auf dem Zu­ führungssystem befestigt sind.
96. Gerät nach Anspruch 93 bis 95, wobei das Fasermaschennetzmaterial ein ela­ stisches oder Formgedächtnismaterial ist, so daß es in einem Zuführungskatheter zusammen­ gefaltet werden kann und nach der Entfaltung seine vergrößerte Form zurück erlangt.
97. Gerät nach Anspruch 93 bis 96, wobei die Fasern des Maschenwerks an den Punkten, wo sie einander kreuzen, verbunden sind.
98. Gerät nach Anspruch 93 bis 97, wobei die Fasern entweder aus einem Poly­ mer, Metall oder Gemisch hergestellt sind.
99. Gerät nach einem der vorhergehenden Ansprüche, wobei das distale Ende des Filterelements die Möglichkeit hat, sich in der axialen Richtung in bezug auf das proximale Ende des Filterkörpers zu bewegen, um so die exakte Form des Blutgefäßes anzunehmen.
100. Gerät nach einem der vorhergehenden Ansprüche mit einem durchlässigen Überzug auf einem distalen Ende des Filterkörpers lediglich mit einem Mittel zum Öffnen und Schließen des Filterkörpers durch Verschiebebewegung.
101. Gerät nach Anspruch 100, wobei der Filterkörper einen zusammenfaltbaren Drahtrahmen umfaßt, der mehrere Drähte hat, wobei die äußeren Enden der Drähte scharnier­ artig an dem Zuführungssystem befestigt sind, wobei die Drähte zwischen ihren Enden dreh­ bar sind, wobei an einem Ende die Drähte am Zuführungssystem befestigt sind und am ande­ ren Ende die Drähte auf einem Ring befestigt sind, der längs des Zuführungssystems ver­ schiebbar ist, wobei ein durchlässiges Filter auf dem Drahtrahmen maschenartig befestigt ist.
102. Gerät nach Anspruch 101, wobei eine Antriebsmuffe über das Zuführungssy­ stem verschiebbar ist, um den Ring in Richtung auf das feste Ende des Filterkörpers zu drüc­ ken, und eine Zusammenfalteinrichtung den Ring erfaßt, um den Ring weg vom festen Ende des Filterkörpers zu ziehen, damit sich der Drahtrahmen gegen das Zuführungssystem faltet, um den Filterkörper herauszuholen.
103. Filterherausholsystem zur Verwendung bei dem Gerät, wie dies nach einem der vorhergehenden Ansprüche beansprucht wurde, welches einen Längskatheter mit einer deformierbaren Spitze umfaßt, um das Herausziehen des Filterkörpers in diesen zu unterstüt­ zen.
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