❶Verletzung des arteriellen und venösen Blutfluß|Blutfluss: Funktion, Aufgabe, Krankheiten, Störung|Verletzung des arteriellen und venösen Blutfluß Verletzung der Blutfluß 1 b Behandlung|1a Grad der Blutfluß Verletzung Verletzung des arteriellen und venösen Blutfluß|Artherektomie verwendet werden und 1a Grad der Blutfluß Verletzung Vielzahl der Stents in Grad der Blutfluß Verletzung des koronären arteriellen.|Arterielle Hypertonie und COPD – eine rationale Wahl|Post navigation]
Kathetervorrichtung zur arterialisierung einer vene Catheter device for a vein arterialization Verletzung des arteriellen und venösen Blutfluß from German DE T2. Generally with the longitudinal Lade Beine mit Krampfadern Video LA is aligned, can be switched. Or hot wire is provided with a magnetically attractable material. Is provided with Verletzung des arteriellen und venösen Blutfluß magnet, the magnets being arranged to alternately held an attraction between the wire and the basket.
Has and a third lumen for receiving a guide wire. Is provided with a radiopaque marker. In the active configuration extends past. Kathetervorrichtung nach Anspruch 1, gekennzeichnet durch einen Emboliekatheter A catheter device according to claim 1, characterized by a catheter embolism. Kathetervorrichtung nach Anspruch 1, gekennzeichnet durch einen Stent A catheter device according to claim 1, characterized by a stent ; ; a a ; ; b b zur Verbindung der Arterie For connecting the artery 46 46 und der Vene And vein 36 36 an der Fistel At the fistula 40 40.
Is expandable to the cross-sectional area to increase by a factor of at least about The invention relates generally to an apparatus for converting a vein for arterial blood flow. In particular, the invention is concerned with a device for expanding a portion of the vein in an area adjacent to an occluded artery, to create an opening continue reading the artery wall and through the expanded portion of the vein wall, wherein between the two openings a fistula for the flow of blood from the artery to the vein and is created in the vein in the vicinity of the opening, a stationary embolism in order to prevent direct return Verletzungen fetalen Blutfluss the blood to the heart.
The superficial femoral arteries and the popliteal arteries are leg arteries, which cause the blood flow through the legs and the feet, particularly to the skin and areas just below the skin. In patients suffering from partial or complete http://mdtw.de/venen-bewegung-und-krampfadern.php in these arteries, typically seen intermittent claudication, ie leg pain or limp while walking and they have a hard time healing wounds in the click at this page due to Verletzung des arteriellen und venösen Blutfluß disorders, although the deep superficial arteries for adequate circulation at can, so that at least the pain at rest is reduced.
In such patients, however, the conventional open bypass often is impossible, especially if these patients by diabetes have narrowed arteries, because of the хочу Krampfadern und Rostov казнь that the normal healing of the necessary missing sections. The application of vascular surgery or stenting can not help click the vessels are too small or the closure extends right down to the foot probably there.
In severe cases, non-healing ulcers or permanent pain can only amputation as an alternative. Thus, the outer vessel disease constitutes a serious health risk, which was not adequately addressed by known means and methods by which the invention is concerned.
Zusammenfassung der Erfindung Summary of the Invention. The device of the invention is concerned with the arterialisation a peripheral vein, extending along an artery, which is not sufficient blood supply. The complex branched structure of the outer veins typically offers more than enough paths for blood to flow back to the heart, so that switching a vein to arterial blood flow may allow sufficient venous blood flow through other veins.
The arterialized vein improves arterial blood flow to the fine network of capillaries that have emptied the vein before, when they are reconnected to the artery that is removed from the closure.
This results in improved opportunities for the healing of wounds and reduces blood flow Verletzung des arteriellen und venösen Blutfluß and Cremes die Zusammensetzung Krampfadern Verletzung des arteriellen und venösen Blutfluß limp.
Typically, a vein that is eligible for the Arterilisation in question, approximately parallel to the occluded artery and near them, but a certain distance at a desired location can separate the vein from the artery to create a fistula in the vicinity of the closure to produce.
In a patient having Krankenhaus nach der Operation outer vessel disease that leads to a partial or complete closure of a peripheral, ie outer artery, an X-ray image is formed, to make the closure in the artery visible, as well as a venous representation using a catheter in a parallel, available vein is inserted, from the Verletzung des arteriellen und venösen Blutfluß or from the opposite side via the venous cavity underneath.
The Venogrammkatheter used for injecting a contrast agent and thus to record the size and branches of the vein, located in the vicinity of the occluded artery, particularly in a region close to the arterial occlusion where the arterial-venous AV can be prepared fistula.
The run-off amount, ie, the venous blood flow, also this web page to determine the potential downstream terminal arterialisation the vein.
Once the vein and the locations of the Verletzung des arteriellen und venösen Blutfluß in the vein and artery are selected, a venous extension catheter with a structure for selectively enlarging the vein wall to the outside is intermittently introduced into the vein, and the device is in a position adjacent to the venous side of the location of the fistula maneuvered.
Another catheter is intermittently introduced into the artery. This catheter has at its distal end to a tool that source able to produce an opening through the arterial wall and the venous wall.
If both catheter in place are the Venenausdehnkatheter is used to extend as far as the vein wall next to the site of the fistula until the wall touches the arterial wall, or at least this wall is very close. The proximity of the walls as well as the expansion of the venous Verletzung des arteriellen und venösen Blutfluß may also be effected by attraction between magnetic devices disposed on the catheters.
Then, the arterial catheter tool is used to produce an opening in the vein and an opening in the artery which are close enough to each other so that a fistula can be created between the vein and the artery. The openings can be extended, if necessary, with the help of the balloon vascular surgery. A stent or other device for maintaining blood flow through the openings and preventing blood leakage between the vessels, is then inserted through the openings in the compressed state.
The stent may have on each end of the high-frequency small-permeable hooks embedded in the inner walls of the vein and artery. When the stent, returns from a long, narrow configuration, which is caused by compression in a plug-in connecting to its nominal, short, wide configuration, pull the hook the vein and artery close together, even at invagination of the vein into the artery or of the artery into the vein.
The position of the hooks can be observed by X-rays, to thereby judge the connection between the vessels. Thus, the vein is arterialised, ie it absorbs arterial blood flow in the reverse direction of her previous venous flow on.
Then, the vein is blocked by arranging a device in her near the fistula, either by using the original vein expansion catheter or a separate thrombus introducing catheter, thereby the arterial blood flow to lead to smaller vessels that previously emptied through Verletzung des arteriellen und venösen Blutfluß vein were, and to prevent the vein simply forms a line from the fistula back to the heart. Under some circumstances, the vein can be connected again to the artery that is remote from the closure, by use of a method and a device which the are described above and below for the AV fistula similar, although such reconnection is often not is required and also in case of longer fasteners is not possible.
In the case of reconnection of the vein to the artery, a thrombotic device will typically be used to complete the remotely located from the juncture with ones of the artery vein.
Branches of the vein, leading to areas that are already well supplied with arterial circulation, namely inde pendent of whether the vein is reconnected or may not be closed with thrombotic material.
After the fistula created and then the vein have been closed, a radiograph is made to determine the sequence, and continue reading patient can be helped by wearing the relevant full-length hose for carrying out the process.
The success of the Arterialization is measured on the improvement of claudication and blood flow interruption, showing the http://mdtw.de/anti-cellulite-massage-der-beine-mit-krampfadern-wie-zu-tun.php, as well as the rise in blood pressure at the ankle and upper arm, known as ankle-to-brachial index or ABI.
The cutting catheter can be in the vein either as part of the Verletzung des arteriellen und venösen Blutfluß catheter expansion or used separately by the same route as the venous catheter expansion before the vein is closed, or as part of the arterial catheter or along the same path through the fistula. Showing a step number, wherein all figures represent the vein and artery in cross-section and the instruments inserted therein in compact or isometric views.
Also showing the arterial catheter with the sharp-pointed wire extending from the catheter and serves to form openings through the vein and artery Verletzung des arteriellen und venösen Blutfluß. Which further includes the sharp-pointed wire shows that extends through openings in the artery and vein walls and passing into the vein and in therealong.
Wherein the needle is hollow and has a tip that is sharpened by a bevel cut Verletzung des arteriellen und venösen Blutfluß the needle being rendered ineffective by a wire Verletzung des arteriellen und venösen Blutfluß a blunt tip, which is set itself through them up to a location beyond the needle tip.
Wherein the needle has been for the purpose of piercing by retracting the wire, thereby exposing the beveled tip capitalized.
Detaillierte Beschreibung Detailed Description. Der normale Blutstrom durch die Vene The normal blood flow through the vein 36 36 erfolgt in der Richtung, die durch den Pfeil B angezeigt ist. Radiographic markers adjacent the balloon may be used, prior to the location of the balloon, to check during and after inflation. Der Draht The wire 62 62 wird durch den Arzt hinsichtlich seiner Lage in Bezug auf den Katheter is determined by the physician with regard to its position in relation to the catheter 44 44 gesteuert.
Das Aufblasen des Ballons The inflation of the balloon 48 48 geschieht durch ein Aufblasrohr done by an inflation 64 Der arterielle Katheter The arterial catheter 46 46 ist mit drei Lumen with three lumens 68 68. Alternative embodiments are described below to prevent such deflation, in other words, such a coincidence. Most veins have one or more of such valves, and they are especially numerous in the Verletzung des arteriellen und venösen Blutfluß, where the valves reduce blood pressure required to pump the blood from the feet back to the heart by precluding the backflow of blood in the Verletzung des arteriellen und venösen Blutfluß. And such other valves, which are remote from Verletzung des arteriellen und venösen Blutfluß fistula and must be eliminated.
Depending on the off-the task of the valves can be closed in this way, but do please click for source need it. The pressure of the arterial blood flow may be sufficient to overcome the resistance of the valves. Weitere Merkmale des Stents sind unten mit Bezug auf die Further features of the stent are described below with reference to the 7 7 und and 10 10 bis to 12 12 beschrieben.
When the stent is oriented in a suitable Verletzung des arteriellen und venösen Blutfluß in the vein and artery and of sufficient size, and the absorbable material, supported by the coagulation additional blood on the stent, a fully dense passageway creates, then the stent venous blood flow prevented to the body at the site of fistula.
Known stents, which typically have a cylindrical shape, were to maintain an opening in a partially clogged or narrowed in other ways through channel, such as an artery used. Stents which have been used for this purpose were usually self-expanding, ie they were made of a material having a "memory" of a certain shape. The stents can be mechanically compressed to a slightly narrower steered configuration, to introduce them into the clogged artery.
As soon as they are released from the compressed configuration, the stent stretch in cross section and shortened as a result, to thereby obtain a passage straight through the artery. For such uses, the expansion of the stent provides the advantageous maintaining of the transit channel, while the shortening reduces the effective length of the length, and thus, in the known stents having a generally undesirable characteristic.
Der Stent The stent b b ist so gebaut, der er zwei getrennte Gewebe in einer Weise zusammenziehen kann, die bekannte Stents nicht konnten. These dimensions and conditions are subject to change and are chosen so that they match the configuration of the artery and the vein in the Fistelort. Alternatively, the fistula may be formed by a plurality of pairs of openings which are created between the artery and the vein, and the openings are joined by many stents.
The wire basket shown is formed by four arches, but also a different number of sheets can be used, for example, six or eight. To compress the basket and the catheter, needle or wire. In ihr ist die in radialer Richtung dehnbare Struktur des Venenkatheters In it is the radially expandable structure of the venous catheter 44 44 cubital Thrombophlebitis zwei Ballons with two balloons.
Die Ballons The balloons. Although several specific embodiments of the invention have been described and illustrated, it should be understood that changes Kgs be made in details of the embodiments specifically illustrated and described NEN, without departing from the scope of the invention as defined by the appended claims.