DE3417738A1 - Blood filter insertable in veins - Google Patents

Blood filter insertable in veins

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Publication number
DE3417738A1
DE3417738A1 DE19843417738 DE3417738A DE3417738A1 DE 3417738 A1 DE3417738 A1 DE 3417738A1 DE 19843417738 DE19843417738 DE 19843417738 DE 3417738 A DE3417738 A DE 3417738A DE 3417738 A1 DE3417738 A1 DE 3417738A1
Authority
DE
Germany
Prior art keywords
filter
blood
filter according
vein
folding
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
DE19843417738
Other languages
German (de)
Other versions
DE3417738C2 (en
Inventor
Günter Röttgering
Dieter Prof. Dr.med. 4400 Münster Rühland
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.)
Ing Walter Hengst GmbH and Co KG
Original Assignee
Ing Walter Hengst GmbH and Co KG
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 Ing Walter Hengst GmbH and Co KG filed Critical Ing Walter Hengst GmbH and Co KG
Priority to DE3417738A priority Critical patent/DE3417738C2/en
Priority to DE19843429850 priority patent/DE3429850A1/en
Publication of DE3417738A1 publication Critical patent/DE3417738A1/en
Application granted granted Critical
Publication of DE3417738C2 publication Critical patent/DE3417738C2/en
Expired legal-status Critical Current

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
    • A61F2/01Filters implantable into blood vessels
    • A61F2/0105Open ended, i.e. legs gathered only at one side
    • 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
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/016Filters implantable into blood vessels made from wire-like elements
    • 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
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028Shapes in the form of latin or greek characters
    • A61F2230/005Rosette-shaped, e.g. star-shaped
    • 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
    • A61F2230/0069Three-dimensional shapes cylindrical
    • 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
    • A61F2230/0086Pyramidal, tetrahedral, or wedge-shaped
    • 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
    • A61F2230/0086Pyramidal, tetrahedral, or wedge-shaped
    • A61F2230/0089Pyramidal, tetrahedral, or wedge-shaped tetrahedral, i.e. having a triangular basis

Abstract

Blood filter insertable in veins, which can be used for treating patients at risk of an embolism, is foldable and in which part of the filter forms an upstream support surface (2) for the vessel wall in the unfolded state. The filter (1) may have an intrinsic tension which automatically converts the filter from the folded to the unfolded state, or it may be unfolded by a folding rod (4) in its interior. The blood filter (1) can be inserted into a vein and removed therefrom through a catheter or an injection needle. <IMAGE>

Description

In Adern einsetzbarer BlutfilterBlood filter that can be used in veins

Die Erfindung betrifft einen in Adern einsetzbaren Blutfilter, der zur Behandlung emboliegefährdeter Personen verwendbar ist. Die Erfindung betrifft ferner ein Injektionssystem, mit dem derartige Blutfilter in Adern einsetzbar sind.The invention relates to a blood filter that can be used in veins can be used for the treatment of people at risk of embolism. The invention relates to also an injection system with which such blood filters can be used in veins.

Als vorsorgliche Maßnahme zur Verhütung einer Embolie ist neben chemotherapeutischen und anderen Maßnahmen auch bekannt, Blutfilter in die Adern einzusetzen. Diese Blutfilter sollen verhindern, daß verschleppte Blutgerinsel in den Adern, die z. B. nach einer Operation auftreten können, im siutsefäßsystem weiterwandern und an einer engen Stelle des Blutgefäßsystems den Blutstrom unterbrechen und dadurch eine Embolie auslösen.As a precautionary measure to prevent an embolism is next to chemotherapeutic and other measures also known to insert blood filters into the veins. These blood filters to prevent entrained blood clots in the veins that z. B. after a Surgery can occur, migrate further in the vascular system and at a narrow one Cut off the blood flow in the blood vessel system, causing an embolism trigger.

Die bekannten Blutfilter sind einfache Sperrfilter, die das Blutgerinsel am Weiterströmen hindern, mit denen aber das Blutgerinsel nicht entnommen werden kann. Diese Blutfilter sind auch nur unter vergleichsweise großem Aufwand in die Adern einzusetzen.The well-known blood filters are simple blocking filters that remove blood clots prevent it from flowing further, but with which the blood clot is not removed can. These blood filters are also only available with a comparatively large amount of effort Insert wires.

Der Erfindung liegt die Aufgabe zugrunde, einen Blutfilter anzugeben, der auf einfache Weise in Adern einsetzbar und zusammen mit dem Blutgerinsel wieder entnehmbar sein soll. Weiterhin soll der Blutfilter am Ort seines Einsatzes in der Ader sicher gehalten werden.The invention is based on the object of specifying a blood filter, which can easily be used in cores and together with that Blood clots should be removable again. Furthermore, the blood filter should be at its place Use to be held securely in the vein.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Filter faltbar ist und im aufgefalteten Zustand ein Teil des Filters anströmseitig eine Anlagefläche für die Adernwand bildet.According to the invention, this object is achieved in that the filter is foldable and in the unfolded state a part of the filter on the inflow side Forms contact surface for the vein wall.

Aufgrund seiner Faltbarkeit läßt sich ein derartiger Blutfilter so eng zusammenpressen, daß er mittels eine Katheters oder einer Injektionsnadel in die Adern einsetzbar ist. Nach Freigabe durch den Katheter spreitzt der Filter sich so weit auf, daß er mit seiner Anlageflache an der Innenwand der Ader klemmend anliegt.Because of its foldability, such a blood filter can be designed like this press tightly together so that it can be inserted into the cores can be used. When released by the catheter, the filter spreads so far that it rests with its contact surface on the inner wall of the wire in a clamping manner.

Damit der Filter spreizbar wird, kann der Filter eine Eigenspannung aufweisen, die den Filter aus dem zusammengelegten in den aufgefalteten Zustand selbsttätig überführt. Die Eigenspannung kann dabei aufgrund von Materialeigenschaften des Filters oder durch spezielle Spreizelemente hervorgerufen werden.In order for the filter to be expandable, the filter can have its own stress have the filter from the folded to the unfolded state transferred automatically. The internal stress can be due to material properties of the filter or by special spreading elements.

Weiterhin kann bei dem Filter im Inneren ein Faltgestänge vorgesehen sein, über das die Aufspreizung des Filters bewirkt wird. Vorteilhaft weist dieses Faltgestänge eine Zug- oder Schubstange auf, die zumindest mit einem Ende außerhalb des Filters reicht und somit durch das Katheter oder die Injektionsnadel betätigt werden kann.Furthermore, a folding linkage can be provided in the interior of the filter through which the spreading of the filter is effected. This advantageously shows Folding linkage a pull or push rod with at least one The end outside the filter extends through the catheter or the injection needle can be operated.

Zur. Erreichung eines Festsitzes des Filters in. der Ader, der teilweise schon durch die Spreizwirkung erreicht wird, kann zusätzlich noch die Anlagefläche eine die Haftung an der Adernwand erhöhende Struktur aufweisen.To the. Achieving a tight fit of the filter in. The vein, which is partially is already achieved by the spreading effect, the contact surface can also be used have a structure that increases adhesion to the vein wall.

Weiterhin wird ein Festsitz des Filters über den gesamten Innenumfang der Ader dadurch erreicht, daß die Anlagefläche des Filters ringförmig ausgebildet ist und aus einzelnen, auffaltbaren Kreisringsegmenten besteht. Im Blut mitgeführtes Blutgerinsel kann folglich nicht an dem Filter vorbeiströmen, sondern wird zwangsweise durch den Filter geführt, wo das Gerinsel festgehalten wird.Furthermore, a tight fit of the filter over the entire inner circumference the wire is achieved in that the contact surface of the filter is annular and consists of individual, foldable annulus segments. Carried in the blood As a result, blood clots cannot flow past the filter, but become compulsory passed through the filter where the clot is captured.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in the drawing and are described in more detail below.

Es zeigen: Figur 1 einen Schnitt eines konischen und selbstspreizenden Blutfilters gemäß der Erfindung, Figur 2 einen Schnitt des Blutfilters in einer weiteren Ausführungsform, Figur 3 ein Injektionssystem mit eingesetztem Blutfilter.They show: FIG. 1 a section of a conical and self-expanding one Blood filter according to the invention, Figure 2 shows a section of the blood filter in one further embodiment, Figure 3 shows an injection system with an inserted Blood filter.

Figur 4 eine dritte Ausführungsform des Blutfilters in der Seitenansicht und im Schnitt quer zu seiner Längsachse.FIG. 4 shows a third embodiment of the blood filter in a side view and in section transversely to its longitudinal axis.

In den Figuren sind die erfindungsgemäßen Blutfilter, die emboliegefährdeten Personen in die Adern eingesetzt werden können, in vergrößerter Darstellung gezeigt. Die Blutfilter 1 sind konisch ausgebildet und lassen sich nach Art eines Faltenfilters zusammenlegen bzw. aufspreizen. Die Konusöffnung des Filters ist auf der Anströmseite angeordnet. Blut, das Blutgerinsel mit sich führt, trittt durch die Konusöffnung in den Filter ein.In the figures, the blood filters according to the invention are those at risk of embolism Persons into the veins can be inserted, shown in an enlarged view. The blood filters 1 are conical and can be designed in the manner of a pleated filter fold or spread apart. The cone opening of the filter is on the upstream side arranged. Blood, carrying clots, passes through the opening of the cone into the filter.

Auf Grund der Maschenweite oder Porengröße des Filters wird das Blutgerinsel im Filter zurückgehalten und das Blut kann ohne nennenswerten Widerstand das Filter passieren. In den Figuren 1 und 2 ist die Strömungsrichtung des Blutes durch Pfeile angedeutet. Selbstverständlich ist der Filter aus gewebeverträglichem Kunststoff oder anderen verträglichen Materialien hergestellt. Derartige Materialien sind dem Fachmann bekannt und brauchen daher nicht besonders erwähnt zu werden.Due to the mesh size or pore size of the filter, the blood clot becomes retained in the filter and the blood can pass through the filter without significant resistance happen. In Figures 1 and 2, the direction of blood flow is indicated by arrows indicated. It goes without saying that the filter is made of fabric-compatible plastic or other compatible materials. Such materials are the Known to those skilled in the art and therefore do not need to be specifically mentioned.

Figur 1 zeigt einen Blutfilter, der aufgrund seiner Materialeigenschaften und seiner Herstellung eine derartige Eigenspannung aufweist, daß er nach der Freigabe durch das Injektionssystem sich selbsttätig aufspreizt und mit seiner Anlagefläche 2 an die Innenseite der Adernwand anlegt. Die Anlagefläche 2, die zylindrisch ausgebildet ist, bildet den Abschluß des Filters auf der Anstömseite. Auf ihrer Außenfläche weist die Anlagefläche 2 eine feine Struktur 3 auf, die den Halt des Filters an der Innenwand der Ader verbessert. Die Struktur 3 kann z. B. aus kleinen Widerhaken bestehen.Figure 1 shows a blood filter, due to its Material properties and its production has such an internal stress that it after release by the injection system spreads itself automatically and with its contact surface 2 on the inside of the vein wall. The contact surface 2, which is cylindrical is, forms the end of the filter on the upstream side. On their outer surface the contact surface 2 has a fine structure 3 that holds the filter the inner wall of the vein improved. The structure 3 can e.g. B. from small barbs exist.

Der Blutfilter der Figur 2 ist ähnlich gestaltet wie der im ersten Ausführungsbeispiel. Im Inneren weist dieser Filter ein Faltgestänge 4 auf, das mit seinen Faltarmen 5 an der Innenseite des Filters angreift. Durch Zug an der zentralen Zugstange 6 des Faltgestänges kann der Filter, z. B. bei der Entnahme aus der Ader, schirmförmig zusammengelegt werden. Der Katheter oder die Injektionsnadel ergreift dabei das Zugende der Stange 6, das außerhalb des Filters reicht. Möglich ist ferner, daß bei der Entnahme der Katheter außen über über den Filter greift und den Filter mit seinem Inhalt umschließt.The blood filter of Figure 2 is designed similar to that in the first Embodiment. Inside, this filter has a folding rod 4 that engages with its folding arms 5 on the inside of the filter. By train on the central pull rod 6 of the folding rod, the filter, for. B. when removing from the vein, can be put together in an umbrella shape. The catheter or injection needle takes hold of the pulling end of the rod 6, which extends outside the filter. Possible is also that when removing the catheter reaches outside over the filter and encloses the filter with its content.

Der Filter der Figur 2 kann sich beim Einsetzen entweder durch Eigenspreizung entfalten oder aber auch durch Zug an der Zugstange 6 des Faltgestänges in entgegengesetzter Richtung aufgefaltet werden. In weiterer Ausbildung des Filters können beim Aufspreizen einige der Faltarme 5 des Faltgestänges durch Öffnungen (nicht gezeigt) der Filterwandung greifen und sich an der Aderwandung anlegen. Zur Verbesserung des Haltes können diese Faltarme an ihren ausgefahrenen Enden kleine Widerhaken aufweisen. Beim Zusammenlegen des Filters werden die Faltarme durch die Öffnungen wieder in den Filter zurückgezogen.The filter of FIG. 2 can either be self-expanding when inserted unfold or by train on the pull rod 6 of the folding rod unfolded in the opposite direction. In further training of the filter can when spreading some of the folding arms 5 of the folding rod through openings (not shown) grab the filter wall and lay against the core wall. To the These folding arms can improve the hold at their extended ends Have barbs. When folding the filter, the folding arms are through the Openings pulled back into the filter.

Bei den beiden Ausführungsbeispielen ist die Anlagefläche des Filters relativ breit gehalten. Für die Anlage an der Aderninnenwand kann es vollkommen ausreichend sein, wenn die Anlagefläche als ringförmige Wulst gestaltet ist, wobei zur Erzielung der Faltbarkeit die Wulst aus einzelnen, auffaltbaren Kreisringsegmenten besteht. Die einzelnen Kreisringsegmente können über Scharniere miteinander verbunden sein. Die Segmente können aber auch so zueinander angeordnet sein, daß sie sich beim Falten übereinanderlegen oder bei axial versetzten Segmenten hintereinander liegen.In the two exemplary embodiments, the contact surface is the filter kept relatively wide. For the plant on the inner wall of the veins, it can be perfect be sufficient if the contact surface is designed as an annular bead, with To achieve the foldability, the bead made of individual, foldable circular ring segments consists. The individual circular ring segments can be connected to one another via hinges be. The segments can, however, also be arranged to one another so that they are superimpose when folding or one behind the other with axially offset segments lie.

Figur 3 zeigt einen für den Einsatz vorbereiteten Blutfilter in der Spitze einer Injektionsnadel. Durch Schub des Kolbens wird der Filter aus der Nadel mit dem Konusende voraus in die Ader gedrückt. Es ist vorgesehen, daß dem behandelnden Arzt ein komplettes Injektionssystem zur Verfügung gestellt wird, in dem ein oder mehrere Katheter zusammen mit Blutfiltern verschiedener Größen steril verpackt vorliegen. Aus dem Filtersortiment kann der Arzt dann das passende Blutfilter auswählen.FIG. 3 shows a blood filter prepared for use in the The tip of a hypodermic needle. The filter is removed from the needle by pushing the piston pressed into the vein with the cone end first. It is provided that to the a complete injection system is made available to the attending physician the one or more catheters along with blood filters of various sizes sterile present packed. The doctor can then select the right blood filter from the range of filters choose.

Figur 4 zeigt den Blutfilter in einer dritten Ausführungsform, bei der der Blutfilter im aufgespreizten Zustand im wesentlichen eine zylindrische Form annimmt.FIG. 4 shows the blood filter in a third embodiment that of the blood filter in the expanded state is essentially cylindrical in shape accepts.

Der Blutfilter gemäß Figur 4 besitzt in seiner Filterfläche in Richtung der Filterlängsachse verlaufende Anlagestege 12. Die Stege 12, von denen im Ausführungsbeispiel acht vorhanden sind, sind vorzugsweise radialsymmetrisch um die Filterlängsachse angeordnet, wie dies insbesondere aus der Schnittdarstellung ersichtlich ist.The blood filter according to FIG. 4 has its filter surface in the direction the longitudinal axis of the filter contact webs 12. The webs 12, of which in the embodiment eight are present, are preferably radially symmetrical about the longitudinal axis of the filter arranged, as can be seen in particular from the sectional view.

Jeder der Stege 12 ist mit mehreren Faltarmen 15 eines Faltgestänges 14 verbunden, das durch Zug an der zentralen Zugstange 16 zur Entnahme des Filters aus der Ader zusammengelegt werden kann. Auch bei diesem Filter kann zur Verbesserung der Anlage an der Adernwand, wie schon bei der Figur 2 beschrieben, ein Teil der Faltarme 15 durch Öffnungen (nicht gezeigt) in den Stegen 12 ausgespreizt werden. Diese Faltarme werden beim Zusammenlegen des Filters wieder in den Filter zurückgezogen.Each of the webs 12 is with several folding arms 15 of a folding rod 14 connected by pulling on the central pull rod 16 to remove the filter can be merged from the vein. This filter can also be used for improvement the system on the vein wall, as already described in Figure 2, part of the Folding arms 15 are spread out through openings (not shown) in the webs 12. These folding arms are pulled back into the filter when the filter is collapsed.

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Claims (11)

Patentansprflche: 1. In Adern einsetzbarer Blutfilter, der zur Behandlung emboliegefährdeter Personen verwendbar ist, dadurch gekennzeichnet, daß der Filter (1) faltbar ist und im aufgefalteten Zustand ein Teil des Filters anströmseitig eine Anlagefläche (2) für die Adernwand bildet.Claims: 1. Blood filter that can be used in veins for treatment is used by people at risk of embolism, characterized in that the filter (1) is foldable and, in the unfolded state, part of the filter is on the inflow side forms a contact surface (2) for the vein wall. 2 Filter nach Anspruch 1, dadurch gekennzeichnet, daß der Filter (1) eine Eigenspannung aufweist, die den Filter aus dem zusammengelegten in den aufgefalteten Zustand selbsttätig überführt.2 filter according to claim 1, characterized in that the filter (1) has an internal stress that separates the filter from the folded to the unfolded State transferred automatically. 3. Filter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Filter (1) im Inneren ein Faltgestänge (4) aufweist.3. Filter according to claim 1 or 2, characterized in that the The filter (1) has a folding rod (4) inside. 4. Filter nach Anspruch 3, dadurch gekennzeichnet, daß das Faltgestänge (4) eine Zug- oder Schubstange (6) aufweist, die zumindest mit einem Ende außerhalb des Filters reicht und durch ein Katheter betätigbar ist.4. Filter according to claim 3, characterized in that the folding linkage (4) has a pull or push rod (6) at least one end outside of the filter is sufficient and can be actuated by a catheter. 5. Filter nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Faltsgestänge (4) Faltarme (5) aufweist, deren freie Enden bei Betätigung der Schubstand (6) durch Öffnungen in der Filterwandung ausspreizbar bzw. in die Öffnungen zurückziehbar sind.5. Filter according to claim 3 or 4, characterized in that the Folding linkage (4) has folding arms (5), the free ends of which when the push stand is actuated (6) expandable through openings in the filter wall or into the Openings are retractable. 6. Filter nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß der Filter (1) konisch ausgebildet ist und auf der Anströmseite die Konusöffnung besitzt.6. Filter according to claims 1 to 5, characterized in that the filter (1) is conical and the cone opening on the upstream side owns. 7. Filter nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß die Anlagefläche (2) des Filters ringförmig ausgebildet ist und aus einzelnen, auffaltbaren Kreisringsegmenten besteht. 7. Filter according to claims 1 to 6, characterized in that the contact surface (2) of the filter is ring-shaped and consists of individual, foldable Annular segments consists. 8. Filter nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß die Anlagefläche (2) eine die Haftung an der Adernwand erhöhende Struktur (3) aufweist. 8. Filter according to claims 1 to 7, characterized in that the contact surface (2) has a structure (3) which increases the adhesion to the vein wall. 9. Filter nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß der Filter (1) durch ein Katheter oder eine Injektionsnadel in die Ader einsetzbar und aus der Ader wieder entnehmbar ist. 9. Filter according to claims 1 to 8, characterized in that the filter (1) can be inserted into the vein through a catheter or an injection needle and can be removed from the vein again. 10. Filter nach den Ansprüchen 1 bis 9, gekennzeichnet durch einen im aufgespreizten Zustand zylindrischen Filter, dessen Filterfläche in Richtung der Filterlängsachse verlaufende Anlagestege (12) aufweist, die durch ein Faltgestänge (14) zusammenlegbar sind.10. Filter according to claims 1 to 9, characterized by a in the expanded state cylindrical filter, its filter surface in the direction the longitudinal filter axis extending contact webs (12) which by a folding linkage (14) are collapsible. 11. Steril verpacktes Iniektionssystem zum Einsetzen von Blutfiltern nach den Ansprüchen 1 bis 10 in Adern, das eine oder mehrere Katheter und Blutfilter in verschiedenen Größen aufweist.11. Sterile packed injection system for inserting blood filters according to claims 1 to 10 in veins, the one or more catheters and blood filters in different sizes.
DE3417738A 1984-05-12 1984-05-12 Blood filter that can be used in veins Expired DE3417738C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3417738A DE3417738C2 (en) 1984-05-12 1984-05-12 Blood filter that can be used in veins
DE19843429850 DE3429850A1 (en) 1984-05-12 1984-08-14 Improved blood filter for insertion into veins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3417738A DE3417738C2 (en) 1984-05-12 1984-05-12 Blood filter that can be used in veins

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DE3417738A1 true DE3417738A1 (en) 1985-11-14
DE3417738C2 DE3417738C2 (en) 1986-10-02

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Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188927A2 (en) * 1984-11-29 1986-07-30 Société dite : L.G. MEDICAL S.A. Filter, especially to arrest blood clots
FR2606642A1 (en) * 1986-11-14 1988-05-20 Michel Camus Element to be implanted in a vein, and device carrying this element
EP0480667A1 (en) * 1990-10-09 1992-04-15 Cook Incorporated Percutaneous stent assembly
FR2671280A1 (en) * 1991-01-03 1992-07-10 Sgro Jean Claude Self-expandable vascular endoprosthesis with permanent elasticity, and minimal shortening, and equipment for its application
EP0582493A1 (en) * 1992-08-07 1994-02-09 CELSA LG (Société Anonyme) Vascular filter with triangulated legs
US5496365A (en) * 1992-07-02 1996-03-05 Sgro; Jean-Claude Autoexpandable vascular endoprosthesis
EP0715834A1 (en) * 1994-12-09 1996-06-12 Jean-Claude Sgro Self-expanding endoprothesis
US5720764A (en) * 1994-06-11 1998-02-24 Naderlinger; Eduard Vena cava thrombus filter
US5769816A (en) * 1995-11-07 1998-06-23 Embol-X, Inc. Cannula with associated filter
US5836969A (en) * 1993-10-01 1998-11-17 Boston Scientific Corporation Vena cava filter
US5846260A (en) * 1997-05-08 1998-12-08 Embol-X, Inc. Cannula with a modular filter for filtering embolic material
US5989281A (en) * 1995-11-07 1999-11-23 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US6007557A (en) * 1998-04-29 1999-12-28 Embol-X, Inc. Adjustable blood filtration system
US6048331A (en) * 1996-05-14 2000-04-11 Embol-X, Inc. Cardioplegia occluder
US6142987A (en) * 1999-08-03 2000-11-07 Scimed Life Systems, Inc. Guided filter with support wire and methods of use
US6168579B1 (en) 1999-08-04 2001-01-02 Scimed Life Systems, Inc. Filter flush system and methods of use
EP1084685A1 (en) * 1999-09-14 2001-03-21 Cormedics GmbH Filter system for a body vessel
US6214025B1 (en) 1994-11-30 2001-04-10 Boston Scientific Corporation Self-centering, self-expanding and retrievable vena cava filter
US6231544B1 (en) 1996-05-14 2001-05-15 Embol-X, Inc. Cardioplegia balloon cannula
WO2001035857A1 (en) 1999-11-15 2001-05-25 Boston Scientific Limited Guidewire filter and methods of use
US6258120B1 (en) 1997-12-23 2001-07-10 Embol-X, Inc. Implantable cerebral protection device and methods of use
US6273900B1 (en) 1994-11-30 2001-08-14 Boston Scientific Corporation Blood clot filtering
WO2002022048A3 (en) * 2000-09-15 2002-08-08 Tayside Flow Technologies Ltd Device for insertion into a vein
US6468290B1 (en) 2000-06-05 2002-10-22 Scimed Life Systems, Inc. Two-planar vena cava filter with self-centering capabilities
US6743246B1 (en) 1997-05-08 2004-06-01 Edwards Lifesciences Corporation Devices and methods for protecting a patient from embolic material during surgery
US7670356B2 (en) 1994-07-08 2010-03-02 Ev3 Inc. Method and device for filtering body fluid
US7716801B2 (en) 2003-11-24 2010-05-18 Medtronic Vascular, Inc. Low-profile distal protection device
US7896861B2 (en) 2004-10-21 2011-03-01 Boston Scientific Scimed, Inc. Catheter with a pre-shaped distal tip
US7987994B2 (en) 2003-02-24 2011-08-02 Boston Scientific Scimed, Inc. Flexible tube for cartridge filter
US8007510B2 (en) 2003-02-24 2011-08-30 Boston Scientific Scimed, Inc. Embolic protection filtering device that can be adapted to be advanced over a guidewire
US8221434B2 (en) 1999-10-27 2012-07-17 Boston Scientific Scimed, Inc. Retrieval device made of precursor alloy cable
US8267956B2 (en) 2001-10-19 2012-09-18 Incept, Llc Vascular embolic filter exchange devices and methods of use thereof
US8292829B2 (en) 2003-05-01 2012-10-23 Boston Scientific Scimed, Inc. Medical instrument with controlled torque transmission
US8444666B2 (en) 2002-09-12 2013-05-21 Cook Medical Technologies Llc Retrievable filter
US8444669B2 (en) 2008-12-15 2013-05-21 Boston Scientific Scimed, Inc. Embolic filter delivery system and method
US8460336B2 (en) 2001-01-16 2013-06-11 Incept Llc Systems and methods for vascular filter retrieval
US8468678B2 (en) 2002-10-02 2013-06-25 Boston Scientific Scimed, Inc. Expandable retrieval device
US8480629B2 (en) 2005-01-28 2013-07-09 Boston Scientific Scimed, Inc. Universal utility board for use with medical devices and methods of use
US8579957B2 (en) 2001-11-09 2013-11-12 Boston Scientific Scimed, Inc. Stent delivery device with embolic protection
US8617201B2 (en) 1999-07-30 2013-12-31 Incept Llc Vascular device for emboli, thrombus and foreign body removal and methods of use
US8821478B2 (en) 2011-03-04 2014-09-02 Boston Scientific Scimed, Inc. Catheter with variable stiffness
US9119706B2 (en) 1999-02-24 2015-09-01 Boston Scientific Scimed Inc. Intravascular filter and method
US10022212B2 (en) 2011-01-13 2018-07-17 Cook Medical Technologies Llc Temporary venous filter with anti-coagulant delivery method

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5814064A (en) 1997-03-06 1998-09-29 Scimed Life Systems, Inc. Distal protection device
US6676682B1 (en) 1997-05-08 2004-01-13 Scimed Life Systems, Inc. Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US5911734A (en) 1997-05-08 1999-06-15 Embol-X, Inc. Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US6066149A (en) 1997-09-30 2000-05-23 Target Therapeutics, Inc. Mechanical clot treatment device with distal filter
US20030150821A1 (en) 1999-07-16 2003-08-14 Bates Mark C. Emboli filtration system and methods of use
US6589263B1 (en) 1999-07-30 2003-07-08 Incept Llc Vascular device having one or more articulation regions and methods of use
US6530939B1 (en) 1999-07-30 2003-03-11 Incept, Llc Vascular device having articulation region and methods of use
US6371970B1 (en) 1999-07-30 2002-04-16 Incept Llc Vascular filter having articulation region and methods of use in the ascending aorta
US6616679B1 (en) 1999-07-30 2003-09-09 Incept, Llc Rapid exchange vascular device for emboli and thrombus removal and methods of use
US6620182B1 (en) 1999-07-30 2003-09-16 Incept Llc Vascular filter having articulation region and methods of use in the ascending aorta
US6235044B1 (en) 1999-08-04 2001-05-22 Scimed Life Systems, Inc. Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue
US6616681B2 (en) 2000-10-05 2003-09-09 Scimed Life Systems, Inc. Filter delivery and retrieval device
US6689151B2 (en) 2001-01-25 2004-02-10 Scimed Life Systems, Inc. Variable wall thickness for delivery sheath housing
US6537295B2 (en) 2001-03-06 2003-03-25 Scimed Life Systems, Inc. Wire and lock mechanism
US20030023263A1 (en) 2001-07-24 2003-01-30 Incept Llc Apparatus and methods for aspirating emboli
US20030023261A1 (en) 2001-07-30 2003-01-30 Scimed Life Systems Inc. Chronic total occlusion device with variable stiffness shaft
US6755847B2 (en) 2001-10-05 2004-06-29 Scimed Life Systems, Inc. Emboli capturing device and method of manufacture therefor
US6793666B2 (en) 2001-12-18 2004-09-21 Scimed Life Systems, Inc. Distal protection mechanically attached filter cartridge
US8647359B2 (en) 2002-01-10 2014-02-11 Boston Scientific Scimed, Inc. Distal protection filter
US8070769B2 (en) 2002-05-06 2011-12-06 Boston Scientific Scimed, Inc. Inverted embolic protection filter
US7060082B2 (en) 2002-05-06 2006-06-13 Scimed Life Systems, Inc. Perfusion guidewire in combination with a distal filter
US7959584B2 (en) 2002-05-29 2011-06-14 Boston Scientific Scimed, Inc. Dedicated distal protection guidewires
US7998163B2 (en) 2002-10-03 2011-08-16 Boston Scientific Scimed, Inc. Expandable retrieval device
US8337519B2 (en) 2003-07-10 2012-12-25 Boston Scientific Scimed, Inc. Embolic protection filtering device
US9301829B2 (en) 2003-07-30 2016-04-05 Boston Scientific Scimed, Inc. Embolic protection aspirator
US8535344B2 (en) 2003-09-12 2013-09-17 Rubicon Medical, Inc. Methods, systems, and devices for providing embolic protection and removing embolic material
US7651514B2 (en) 2003-12-11 2010-01-26 Boston Scientific Scimed, Inc. Nose rider improvement for filter exchange and methods of use
US8241315B2 (en) 2004-06-24 2012-08-14 Boston Scientific Scimed, Inc. Apparatus and method for treating occluded vasculature
US7794472B2 (en) 2004-08-11 2010-09-14 Boston Scientific Scimed, Inc. Single wire intravascular filter
US8038696B2 (en) 2004-12-06 2011-10-18 Boston Scientific Scimed, Inc. Sheath for use with an embolic protection filter

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
American Journal of Roentgenology, Vol.141, Sept.1983, S.601-604 *
Radiology, Vol.150, Jan.1984, No.1, S.255-257 *
Surgery, Vol.73, April 1973, No.4, S.599-606 *

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188927A2 (en) * 1984-11-29 1986-07-30 Société dite : L.G. MEDICAL S.A. Filter, especially to arrest blood clots
EP0188927A3 (en) * 1984-11-29 1986-08-06 Societe Dite : L.G. Medical S.A. Filter, especially to arrest blood clots
FR2606642A1 (en) * 1986-11-14 1988-05-20 Michel Camus Element to be implanted in a vein, and device carrying this element
EP0480667A1 (en) * 1990-10-09 1992-04-15 Cook Incorporated Percutaneous stent assembly
FR2671280A1 (en) * 1991-01-03 1992-07-10 Sgro Jean Claude Self-expandable vascular endoprosthesis with permanent elasticity, and minimal shortening, and equipment for its application
EP0566807A1 (en) * 1991-01-03 1993-10-27 Jean-Claude Sgro Self expanding vascular endoprosthesis and its implantation device
US5496365A (en) * 1992-07-02 1996-03-05 Sgro; Jean-Claude Autoexpandable vascular endoprosthesis
FR2694491A1 (en) * 1992-08-07 1994-02-11 Celsa Lg Triangulated leg filters.
US5344427A (en) * 1992-08-07 1994-09-06 Celsa L.G. (Societe Anonyme) Filter with triangular fingers
EP0582493A1 (en) * 1992-08-07 1994-02-09 CELSA LG (Société Anonyme) Vascular filter with triangulated legs
US5836969A (en) * 1993-10-01 1998-11-17 Boston Scientific Corporation Vena cava filter
US6391045B1 (en) 1993-10-01 2002-05-21 Boston Scientific Corporation Vena cava filter
US6126673A (en) * 1993-10-01 2000-10-03 Boston Scientific Corporation Vena cava filter
US5720764A (en) * 1994-06-11 1998-02-24 Naderlinger; Eduard Vena cava thrombus filter
US7670355B2 (en) 1994-07-08 2010-03-02 Ev3 Inc. Method and device for filtering body fluid
US7828816B2 (en) 1994-07-08 2010-11-09 Ev3 Inc. Method and device for filtering body fluid
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US7686815B2 (en) 1994-07-08 2010-03-30 Ev3 Inc. Method and device for filtering body fluid
US7828815B2 (en) 1994-07-08 2010-11-09 Ev3 Inc. Method and device for filtering body fluid
US7922732B2 (en) 1994-07-08 2011-04-12 Tyco Healthcare Group Lp Method and device for filtering body fluid
US6273900B1 (en) 1994-11-30 2001-08-14 Boston Scientific Corporation Blood clot filtering
US6214025B1 (en) 1994-11-30 2001-04-10 Boston Scientific Corporation Self-centering, self-expanding and retrievable vena cava filter
EP0715834A1 (en) * 1994-12-09 1996-06-12 Jean-Claude Sgro Self-expanding endoprothesis
FR2727854A1 (en) * 1994-12-09 1996-06-14 Jean Claude Sgro AUTOEXPANSIBLE ENDOPROTHESIS
US5769816A (en) * 1995-11-07 1998-06-23 Embol-X, Inc. Cannula with associated filter
US7011672B2 (en) 1995-11-07 2006-03-14 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US6117154A (en) * 1995-11-07 2000-09-12 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US8840636B2 (en) 1995-11-07 2014-09-23 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US6423086B1 (en) 1995-11-07 2002-07-23 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US5980555A (en) * 1995-11-07 1999-11-09 Embol-X, Inc. Method of using cannula with associated filter during cardiac surgery
US8025674B2 (en) 1995-11-07 2011-09-27 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US5989281A (en) * 1995-11-07 1999-11-23 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US6235045B1 (en) 1995-11-07 2001-05-22 Embol-X, Inc. Cannula with associated filter and methods of use
US7344551B2 (en) 1995-11-07 2008-03-18 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US6136016A (en) * 1995-11-07 2000-10-24 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US6231544B1 (en) 1996-05-14 2001-05-15 Embol-X, Inc. Cardioplegia balloon cannula
US6589264B1 (en) 1996-05-14 2003-07-08 Edwards Lifesciences Corp. Aortic occluder with associated filter and methods of use during cardiac surgery
US6048331A (en) * 1996-05-14 2000-04-11 Embol-X, Inc. Cardioplegia occluder
US6086605A (en) * 1997-04-16 2000-07-11 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US5846260A (en) * 1997-05-08 1998-12-08 Embol-X, Inc. Cannula with a modular filter for filtering embolic material
US6224620B1 (en) 1997-05-08 2001-05-01 Embol-X, Inc. Devices and methods for protecting a patient from embolic material during surgery
US6051015A (en) * 1997-05-08 2000-04-18 Embol-X, Inc. Modular filter with delivery system
US7112213B2 (en) 1997-05-08 2006-09-26 Edwards Lifesciences Corporation Methods for protecting a patient from embolic material during surgery
US6743246B1 (en) 1997-05-08 2004-06-01 Edwards Lifesciences Corporation Devices and methods for protecting a patient from embolic material during surgery
US6499487B1 (en) 1997-12-23 2002-12-31 Embol-X, Inc. Implantable cerebral protection device and methods of use
US6258120B1 (en) 1997-12-23 2001-07-10 Embol-X, Inc. Implantable cerebral protection device and methods of use
US7014648B2 (en) 1998-04-29 2006-03-21 Edwards Lifesciences Corporation Adjustable blood filtration device
US6656204B2 (en) 1998-04-29 2003-12-02 Embol-X, Inc. Adjustable blood filtration system
US6152947A (en) * 1998-04-29 2000-11-28 Embol-X, Inc. Adjustable blood filtration system
US6319268B1 (en) 1998-04-29 2001-11-20 Embol-X, Inc. Adjustable blood filtration system
US6007557A (en) * 1998-04-29 1999-12-28 Embol-X, Inc. Adjustable blood filtration system
US9119706B2 (en) 1999-02-24 2015-09-01 Boston Scientific Scimed Inc. Intravascular filter and method
US8617201B2 (en) 1999-07-30 2013-12-31 Incept Llc Vascular device for emboli, thrombus and foreign body removal and methods of use
US9283066B2 (en) 1999-07-30 2016-03-15 Incept Llc Vascular device for emboli, thrombus and foreign body removal and methods of use
US6142987A (en) * 1999-08-03 2000-11-07 Scimed Life Systems, Inc. Guided filter with support wire and methods of use
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US6168579B1 (en) 1999-08-04 2001-01-02 Scimed Life Systems, Inc. Filter flush system and methods of use
WO2001010343A1 (en) 1999-08-04 2001-02-15 Scimed Life Systems, Inc. Filter flush system and methods of use
EP1084685A1 (en) * 1999-09-14 2001-03-21 Cormedics GmbH Filter system for a body vessel
US6511497B1 (en) 1999-09-14 2003-01-28 Cormedics Gmbh Vascular filter system
US8221434B2 (en) 1999-10-27 2012-07-17 Boston Scientific Scimed, Inc. Retrieval device made of precursor alloy cable
EP1554991A2 (en) 1999-11-15 2005-07-20 Boston Scientific Limited Medical device
WO2001035857A1 (en) 1999-11-15 2001-05-25 Boston Scientific Limited Guidewire filter and methods of use
US6468290B1 (en) 2000-06-05 2002-10-22 Scimed Life Systems, Inc. Two-planar vena cava filter with self-centering capabilities
WO2002022048A3 (en) * 2000-09-15 2002-08-08 Tayside Flow Technologies Ltd Device for insertion into a vein
US8460336B2 (en) 2001-01-16 2013-06-11 Incept Llc Systems and methods for vascular filter retrieval
US8267956B2 (en) 2001-10-19 2012-09-18 Incept, Llc Vascular embolic filter exchange devices and methods of use thereof
US8579957B2 (en) 2001-11-09 2013-11-12 Boston Scientific Scimed, Inc. Stent delivery device with embolic protection
US8444666B2 (en) 2002-09-12 2013-05-21 Cook Medical Technologies Llc Retrievable filter
US8468678B2 (en) 2002-10-02 2013-06-25 Boston Scientific Scimed, Inc. Expandable retrieval device
US7987994B2 (en) 2003-02-24 2011-08-02 Boston Scientific Scimed, Inc. Flexible tube for cartridge filter
US8287564B2 (en) 2003-02-24 2012-10-16 Boston Scientific Scimed, Inc. Embolic protection filtering device that can be adapted to be advanced over a guidewire
US8007510B2 (en) 2003-02-24 2011-08-30 Boston Scientific Scimed, Inc. Embolic protection filtering device that can be adapted to be advanced over a guidewire
US8292829B2 (en) 2003-05-01 2012-10-23 Boston Scientific Scimed, Inc. Medical instrument with controlled torque transmission
US8845552B2 (en) 2003-05-01 2014-09-30 Boston Scientific Scimed, Inc. Medical instrument with controlled torque transmission
US7716801B2 (en) 2003-11-24 2010-05-18 Medtronic Vascular, Inc. Low-profile distal protection device
US8403912B2 (en) 2004-10-21 2013-03-26 Boston Scientific Scimed, Inc. Catheter with a pre-shaped distal tip
US7896861B2 (en) 2004-10-21 2011-03-01 Boston Scientific Scimed, Inc. Catheter with a pre-shaped distal tip
US8480629B2 (en) 2005-01-28 2013-07-09 Boston Scientific Scimed, Inc. Universal utility board for use with medical devices and methods of use
US8444669B2 (en) 2008-12-15 2013-05-21 Boston Scientific Scimed, Inc. Embolic filter delivery system and method
US10022212B2 (en) 2011-01-13 2018-07-17 Cook Medical Technologies Llc Temporary venous filter with anti-coagulant delivery method
US8821478B2 (en) 2011-03-04 2014-09-02 Boston Scientific Scimed, Inc. Catheter with variable stiffness

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