DD158084A1 - CLOSURE BODY AND METHOD FOR ITS MANUFACTURE - Google Patents
CLOSURE BODY AND METHOD FOR ITS MANUFACTURE Download PDFInfo
- Publication number
- DD158084A1 DD158084A1 DD81229818A DD22981881A DD158084A1 DD 158084 A1 DD158084 A1 DD 158084A1 DD 81229818 A DD81229818 A DD 81229818A DD 22981881 A DD22981881 A DD 22981881A DD 158084 A1 DD158084 A1 DD 158084A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- closure body
- closure
- coil spring
- wire
- spring body
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000008719 thickening Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007943 implant Substances 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 5
- 238000001356 surgical procedure Methods 0.000 abstract description 5
- 238000002513 implantation Methods 0.000 abstract description 2
- 238000001361 intraarterial administration Methods 0.000 abstract description 2
- 206010027476 Metastases Diseases 0.000 description 3
- 230000009401 metastasis Effects 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 201000009030 Carcinoma Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002969 egg yolk Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
- A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- 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
- 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
- A61F2230/0069—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
- A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
Die Erfindung betrifft einen Verschlusskoerper, geeignet zum internen Verschluss rohrfoermiger Hohlprofile, insbesondere zum intraarteriellen u. ntravenoesen Verschluss von Blutgefaessen sowie ein Verfahren zu seiner Herstellung. Das Ziel der Erfindung besteht darin, die Nachteile bekannter technischer Loesungen zu beseitigen und einen Verschlusskoerper zu schaffen, der ohne offene und aufwendige Operationstechnik eingesetzt werden kann. Dabei liegt die Aufgabe zugrunde, einen Verschlusskoerper zur internen Anwendung aus einem fuer Implantationszwecke geeigneten Material und ein Verfahren zur Herstellung desselben zu schaffen. Verwirklicht wird die Aufgabe, indem eine Drahtwendel unter Anwendung hoeherer Umformgrade so zu einem Schraubenfederkoerper ausgebildet wird, dass er unter Anwendung eines aeusseren Zwanges zu einer geraden Drahtwendel elastisch umformbar ist und nach teilweisem Wegfall desselben eine knotenfoermige Gestalt annimmt.The invention relates to a closure body, suitable for internal closure rohrfoermiger hollow sections, in particular for intra-arterial u. ntravenoesen occlusion of blood vessels and a method for its production. The object of the invention is to eliminate the disadvantages of known technical solutions and to provide a closure body that can be used without open and expensive surgical technique. It is the object of the invention to provide a closure body for internal use of a material suitable for implantation purposes and a method for producing the same. The object is achieved by a wire helix is formed using higher degrees of deformation to a coil spring body that it is elastically deformable using a Äusseren constraint to a straight wire helix and after a partial omission of the same assumes a knotenfoermige shape.
Description
Erfinder: Heinke, Dr. -Ing«., JoachimInventor: Heinke, dr. -Ing «, Joachim
Müller, Dr. r-ere nat., ThomasMüller, dr. r-er nat e., Thomas
Paul, Dr, se, HeinrichPaul, Dr, se, Heinrich
Schmidt, MR Dr, se. med», Paul Karl HeinzSchmidt, MR Dr., med., Paul Karl Heinz
Vertreter: Pat.-lüg. Heinz PögeRepresentative: Pat. Heinz Pöge
im VEB Federnwerk Marienberg HA Forschung und Entwicklungin the VEB spring plant Marienberg HA research and development
gO21 Karl-Marx-Stadt gO21 Karl Marx City
Augustusburger Straße 165Augustusburger Strasse 165
Titel der ErfindungTitle of the invention
Verschlußkörper und Verfahren, zu seiner HerstellungClosure body and method for its production
Anwendungsgebiet der ErfindungField of application of the invention
Die Erfindung betrifft einen Verschlußkörper, geeignet zum internen Verschluß rohrförmiger Hohlprofile, insbesondere zum intraarteriellen und intravenösen Verschluß von Blutgefäßen sowie ein Verfahren zu seiner Herstellung.The invention relates to a closure body, suitable for the internal closure of tubular hollow profiles, in particular for the intra-arterial and intravenous closure of blood vessels and a method for its preparation.
gharakteristJk-1 der bekannten technischen Lösungen Die bisher verbreiteste Therapie bei der Bekämpfung stark lokalisierter Karzinome bestand in der sofortigen operativen Entfernung des befallenen Gewebes. Die Gefahr der Metastasierung weiterer Gewebsbereiche war und ist dabei erheblich und grenzt die Erfolgsaussichten in großem Maße ein. Mit den Fortschritten in der Tumorbekämpfung festigte sich deshalb in den letzten Jahren in der Welt die Erkenntnis, daß bei bestimmten Indikationen dieser Mangel durch eine Embolisation vermittels eines Verschlusses der versorgenden Blutgefäße zum Zwecke der Hemmung bzw» Verlangsamung des Tumorwachstums weitestgehend beseitigt werden kann,, Eine operative Entfernung ist nachfolgend zumindest nicht in jedem Fall erforderlich.gharakteristJk -1 of the known technical solutions The previously most common treatment in the fight against highly localized carcinoma was the immediate surgical removal of the affected tissue. The risk of metastasis of other tissue areas was and is considerable and limits the chances of success to a great extent. Therefore, with advances in the fight against tumors, in recent years in the world, it has been confirmed that in certain indications, this deficiency can be largely eliminated by occluding the supplying blood vessels for the purpose of inhibiting or slowing the growth of tumors surgical removal is subsequently not required in any case.
Eine derartige Verfahrensweise kann beispielsweise bei Nieren, im Unterleibsbereich von Frauen Uedgl'«, angewendet werden» Bekannte technische Lösungen zum Verschluß von Blutgefäßen sind Schlauch- bzw. Arierienklemmen, Padenschlingen usw. Der Nachteil aller dieser Verschlußelemente besteht darin, daß ihre Applikation nur extern möglich iste Daraus resultiert die Notwendig-Such a procedure can, for example, in kidneys, in the abdomen area of women Uedgl ', be applied »Known technical solutions for the closure of blood vessels are hose or Arierienklemmen, Padenschlingen, etc. The disadvantage of all these closure elements is that their application only externally possible e This results in the necessary
keit der sogenannten offenen Operationstechnik mit erheblichem Aufwand an Zeit, Personal, technischen Hilfsmitteln und wesentlich höheren Belastungen des Patienten,, Hierbei entsteht die bereits genannte Gefahr der Metastasierung» Solchen Patienten, die sich bereits im inoperablen Zustand auf Grund bereits eingetretener Tumormetastasierung befinden, kann mit den bisherigen Mitteln nicht geholfen werden·The so-called open surgical technique with considerable expenditure of time, personnel, technical aids and much higher loads on the patient "This creates the already mentioned risk of metastasis." Such patients, who are already in an inoperable condition due to tumor metastasis already occurred, can the existing means can not be helped ·
Ziel der ErfindungObject of the invention
Das Ziel der Erfindung besteht darin, die Nachteile bekannter technischer Lösungen zu beseitigen und einen Vorschlußkorper zu schaffen, der ohne offene und aufwendige Operationstechnik eingesetzt werden kanne The object of the invention is to eliminate the disadvantages of known technical solutions and to provide a Vorschlußkorper that can be used without open and expensive surgical technique e
Darlegung des Wesens der ErfindungExplanation of the essence of the invention
Der Erfindung liegt die Aufgabe zugrunde einen Verschlußkörper zur internen Anwendung aus einem für Implantationszwecke geeigneten Material und ein Verfahren zur Herstellung desselben zu schaffen0 The invention has for its object to provide a closure body for internal use of a suitable material for implantation and a method for producing the same. 0
Merkmaleii der Erfindung - · ' ' Ii features of the invention, - · ''
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß eine Drahtwendel unter Anwendung höherer Umformgrade so zu einem Schraubenfederkörper ausgebildet ist, daß er unter Anwendung eines äußeren-Zwanges zu einer geraden Drahtwendel elastisch umformbar ist und nach teilweisem Wegfall desselben eine knotenförmige Gestalt annimmt. Dabei kann der Schraubenfederkörper eine zylindrische, kegelförmige oder tonnenförmige Gestalt aufweisen. Nach einem weiteren Merkmal der Erfindung besitzt der Schraubenfederkörper zur Erhöhung des Abdichteffektes an einem oder an beiden Enden eine Kopfverdickung* Diese Kopfverdickung ist als eine weitere Drahtwendel ausgebildet und · auf den Enden des Schraubenfederkörpers angeordnet. Zweck7 mäßigerweise wird die-Kopfverdickung mit dem Schraubenfederkörper durch geeignete und bekannte Verfahren formschlüssig verbunden· Der Schraubenfederkörper und auch die Kopfverdickung sind aus einem gew-ebeverträglichen, für Humanimplantate geeigneten, hochelastischen und aushärtbaren-hochlegierten Eisen-According to the invention the object is achieved in that a wire helix is formed using higher degrees of deformation to a coil spring body, that it is elastically deformable by using an external constraint to a straight wire helix and after a partial omission of the same assumes a nodular shape. In this case, the coil spring body may have a cylindrical, conical or barrel-shaped form. According to a further feature of the invention, the coil spring body to increase the Abdichteffektes at one or both ends of a head thickening * This head thickening is formed as a further wire coil and arranged on the ends of the coil spring body. Zweck7 moderately, the head thickening is positively connected to the coil spring body by suitable and known methods · The coil spring body and the head thickening are made of a customizable, suitable for human implants, highly elastic and curable high-alloyed iron
werkstoff hergestellt. Dabei besteht erfindungsgemäß das Verfahren zur Herstellung des Verschlußkörpers aus folgenden Verfahrensschritten:manufactured material. According to the invention, the method for producing the closure body consists of the following method steps:
a) Wickeln der Drahtwendel zu einer zylindrischen, tonnenförmigen oder kegelförmigen Bauforma) winding the wire helix to a cylindrical, barrel-shaped or conical shape
b) Form- und Lagefixierung des so gewickelten Körpersb) shape and position fixation of the so wound body
c) Wärmebehandlung, ausgeführt als Entspannungsglühen bei 300° - 55O0C, 2 h unter Schutzgasc) heat treatment, carried out as flash annealing at 300 ° - 55O 0 C, 2 h under inert gas
d) Form- und lagefixierte Luft- oder Wasserabkühlung .d) shape and position-fixed air or water cooling.
e) Formentspannunge) relaxation of shape
Ausführungsbeispiel Exemplary embodiment
Die Erfindung soll in einem nachstehenden Ausführungsbeispiel näher erläutert werden, ohne sich darauf zu· .beschränken· Es zeigeniThe invention will be explained in more detail in an embodiment below, without being limited thereto
Fig· 1i einen Schraubenfederkörper in gestreckter Form als Drahtwendel1i shows a coil spring body in a stretched form as a wire helix
Fig· 2: einen Schraubenfederkörper in gestreckter Form als Drahtwendel mit einer Kopfverdickung einen Verschlußkörper in zylindrischer Bauform einen Verschlußkörper in zylindrischer Bauform mit Kopfverdickung an einer Seite einen Verschlußkörper in kegliger Bauform einen Verschlußkörper in kegliger Bauform mit Kopfverdickung an einer Seite einen Verschlußkörper in tonnenförmiger Bauform einen Verschlußkörper in tonnenförmiger Bauform mit Kopfverdickung auf beiden Seiten Fig. 9: einen Verschlußkörper in einer Arterie eingeführtFig. 2: a coil spring body in a stretched form as a wire helix with a head thickening a closure body in a cylindrical design a closure body in cylindrical design with head thickening on one side a closure body in conical design a closure body in conical design with head thickening on one side a closure body in barrel-shaped design Closure body in barrel-shaped design with head thickening on both sides Fig. 9: introduced a closure body in an artery
mit einem Katheter 'with a catheter
Der Verschlußkörper gemäß Fig. 1 besteht in seiner Ausgangsform, gleich welche Endform gemäß Fig. 3 bis 8 entstehen soll, aus einer Drahtwendel 1„ Diese Drahtwendel 1 ist aus einem gewebeverträglichen, für Humanimplantate geeigneten austenitischen Stahl mit 0,02 % Cj 18,2 %-Cr; 10,4 % Ni; 2,5 % Mo her« gestellt* Zur Erhöhung der Verschlußwirkung einerseits sind an einem Ende oder an beiden Enden der Drahtwendel eine Kopfverdi ckung 2 angeordnet, wobei das Ende der Drahtwendel 1 mit demThe closure body according to FIG. 1 consists of a wire coil 1 "in its starting form, regardless of which end shape according to FIGS. 3 to 8 is to be produced. This wire coil 1 is made of a austenitic steel suitable for human implants with 0.02 % Cj 18.2 % Cr; 10.4 % Ni; 2.5 % Mo fro «asked * To increase the closure effect on the one hand a Kopfverdi cover 2 are arranged at one end or at both ends of the wire coil, wherein the end of the wire coil 1 with the
Ende der Kopfverdickung 2 formschlüssig verbanden ist» Die Drahtwendel 1 wird entsprechend dem jeweiligen Anwendungsfall in eine zylindrische, Fig. 3 und 4, keglige, Pig« 5 und 6 oder tonnenförmige Endform 7 und 8 verformt· Durch die Drahtwendel 1 mit den Abmessungen 0,18 χ 0,9 χ 70 mm wird ein Draht, beispielsweise 0,2 mm-0 X 12 Cr Ni 17.7 G gezogen und um einen zylindrischen Körper 4 mm 0 gewickelte Dabei dient der Draht 0,2 mm 0 als Bindedraht, der die Drahtwendel 1 um den zylindrischen Körper fixiert« Durch eine lageorientierte Vergütungswärmebehandlung bei 450°C/2 h unter Schutzgas und anschließender Y/asserabkühlung wird ein Verschlußkörper, nach lösen des Bindedrahtes nach Pig» 1 oder 2 mit einem Außendurchmesser von 9 mm hergestellt« Die medizintechnische Nutzanwendung erfolgt mit einem üblichen Plastkatheter 1,8 χ 2,5. Pig· 9 zeigt einen eingeführten Verschlußkörper 3 in ein Blutgefäß 4. Wach Ausstoßen des Verschlußkörpers 3 aus dem Katheter 5 befinden sich die einzelnen Windungen unter einem Zwang durch das Blutgefäß 4· Die einzelnen Windungen schieben sich ineinander und hemmen somit in hohem Maße den Blutdurchfluß.The wire coil 1 is deformed according to the respective application in a cylindrical, Fig. 3 and 4, conical, Pig «5 and 6 or barrel-shaped end mold 7 and 8 · By the wire coil 1 with the dimensions 0, 18 χ 0.9 χ 70 mm, a wire, for example, 0.2 mm-0 X 12 Cr Ni 17.7 G pulled and wound around a cylindrical body 4 mm 0 Here, the wire serves 0.2 mm 0 as a binding wire, which is the wire helix 1 is fixed around the cylindrical body "A position-oriented heat treatment at 450 ° C / 2 h under protective gas and subsequent cooling of the yolk produces a closure body, after loosening the binding wire in Pig» 1 or 2 with an outside diameter of 9 mm «The medical technical application done with a standard plastic catheter 1.8 χ 2.5. Wach Aus ejecting the closure body 3 from the catheter 5, the individual turns are under duress by the blood vessel 4 · The individual turns push each other and thus inhibit the blood flow to a high degree.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD81229818A DD158084A1 (en) | 1981-05-08 | 1981-05-08 | CLOSURE BODY AND METHOD FOR ITS MANUFACTURE |
| DE19823203410 DE3203410A1 (en) | 1981-05-08 | 1982-02-02 | Closure body and method for its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD81229818A DD158084A1 (en) | 1981-05-08 | 1981-05-08 | CLOSURE BODY AND METHOD FOR ITS MANUFACTURE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD158084A1 true DD158084A1 (en) | 1982-12-29 |
Family
ID=5530816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD81229818A DD158084A1 (en) | 1981-05-08 | 1981-05-08 | CLOSURE BODY AND METHOD FOR ITS MANUFACTURE |
Country Status (2)
| Country | Link |
|---|---|
| DD (1) | DD158084A1 (en) |
| DE (1) | DE3203410A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4104702A1 (en) * | 1991-02-15 | 1992-08-20 | Malte Neuss | IMPLANTS FOR ORGAN WAYS IN SPIRAL FORM |
| WO1997042881A1 (en) * | 1996-05-14 | 1997-11-20 | PFM PRODUKTE FüR DIE MEDIZIN AKTIENGESELLSCHAFT | Strengthened implant for bodily ducts |
| DE19704269A1 (en) * | 1996-05-14 | 1997-11-20 | Pfm Prod Fuer Die Med Ag | Reinforced implant for organ pathways |
| DE10302447A1 (en) * | 2003-01-21 | 2004-07-29 | pfm Produkte für die Medizin AG | Implantable device for closing holes or making connections in human or animal bodies has a contractable supporting structure formed from a single wire-like element |
| USRE41029E1 (en) | 1990-03-13 | 2009-12-01 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
| USRE42662E1 (en) | 1990-03-13 | 2011-08-30 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
Families Citing this family (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4494531A (en) * | 1982-12-06 | 1985-01-22 | Cook, Incorporated | Expandable blood clot filter |
| FR2541901B1 (en) * | 1983-03-01 | 1985-06-07 | Franceschi Claude | FILTER AGAINST EMBOLIES |
| DK151404C (en) * | 1984-05-23 | 1988-07-18 | Cook Europ Aps William | FULLY FILTER FOR IMPLANTATION IN A PATIENT'S BLOOD |
| FR2645731A1 (en) * | 1989-04-14 | 1990-10-19 | Fondation Avenir Rech Med App | System for preventing pulmonary embolisms |
| FR2655839B2 (en) * | 1989-10-09 | 1994-03-04 | Fondation Avenir Rech Medical | ANTI-EMBOLISED PULMONARY FILTER AND ITS PRESENTATION AND FITTING KIT. |
| US5531788A (en) * | 1989-10-09 | 1996-07-02 | Foundation Pour L'avenir Pour La Recherche Medicale Appliquee | Anti-Pulmonary embolism filter |
| FR2652737B1 (en) * | 1989-10-09 | 1994-02-18 | Fondation Avenir Recherc Medical | ANTI-EMBOLISED PULMONARY FILTER AND ITS PRESENTATION AND FITTING KIT. |
| US5122136A (en) * | 1990-03-13 | 1992-06-16 | The Regents Of The University Of California | Endovascular electrolytically detachable guidewire tip for the electroformation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
| USRE42625E1 (en) | 1990-03-13 | 2011-08-16 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
| US5695518A (en) * | 1990-12-28 | 1997-12-09 | Laerum; Frode | Filtering device for preventing embolism and/or distension of blood vessel walls |
| FR2671006A1 (en) * | 1990-12-28 | 1992-07-03 | Nycomed Ingenor Sa Lab | FILTERING DEVICE FOR THE PREVENTION OF EMBOLISMS AND / OR THE DISTENSION OF THE WALLS OF BLOOD VESSELS. |
| FR2672487B1 (en) * | 1991-02-12 | 1998-09-11 | Guy Caburol | MODULAR SELF-CENTERING VENOUS FILTER IMPLANTABLE ON THE BLOOD PATH. |
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-
1981
- 1981-05-08 DD DD81229818A patent/DD158084A1/en not_active IP Right Cessation
-
1982
- 1982-02-02 DE DE19823203410 patent/DE3203410A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE41029E1 (en) | 1990-03-13 | 2009-12-01 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
| USRE42662E1 (en) | 1990-03-13 | 2011-08-30 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
| DE4104702A1 (en) * | 1991-02-15 | 1992-08-20 | Malte Neuss | IMPLANTS FOR ORGAN WAYS IN SPIRAL FORM |
| WO1997042881A1 (en) * | 1996-05-14 | 1997-11-20 | PFM PRODUKTE FüR DIE MEDIZIN AKTIENGESELLSCHAFT | Strengthened implant for bodily ducts |
| DE19704269A1 (en) * | 1996-05-14 | 1997-11-20 | Pfm Prod Fuer Die Med Ag | Reinforced implant for organ pathways |
| DE10302447A1 (en) * | 2003-01-21 | 2004-07-29 | pfm Produkte für die Medizin AG | Implantable device for closing holes or making connections in human or animal bodies has a contractable supporting structure formed from a single wire-like element |
| DE10302447B4 (en) * | 2003-01-21 | 2007-12-06 | pfm Produkte für die Medizin AG | Occlusion device, placement system, set of such a placement system and such occlusion device and method for producing an occlusion device |
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| Publication number | Publication date |
|---|---|
| DE3203410A1 (en) | 1982-11-25 |
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| ENJ | Ceased due to non-payment of renewal fee |