JPS60500520A - vascular prosthesis - Google Patents
vascular prosthesisInfo
- Publication number
- JPS60500520A JPS60500520A JP59500679A JP50067984A JPS60500520A JP S60500520 A JPS60500520 A JP S60500520A JP 59500679 A JP59500679 A JP 59500679A JP 50067984 A JP50067984 A JP 50067984A JP S60500520 A JPS60500520 A JP S60500520A
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- Prior art keywords
- component
- tubular
- vascular prosthesis
- tubular component
- vein
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
- A61M1/3655—Arterio-venous shunts or fistulae
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Prostheses (AREA)
- External Artificial Organs (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 発明の名称 血管補綴物 本発明は特に血管と血管の間、特に静脈と動脈との間の結合片またはバイパスと して使用するための新しいタイプの血管補綴物に関する。[Detailed description of the invention] name of invention vascular prosthesis The invention particularly relates to junctions or bypasses between blood vessels, especially veins and arteries. and a new type of vascular prosthesis for use as a vascular prosthesis.
医療技術において、血管と血管の間に血管補綴物、いわゆるバイパスを導入する ことが分析試験または浄化目的のための血液のドレナージ(排液)にとって比較 的しばしば要求される。長時間挿入されうるこのノ9イパスは次に意図される目 的のための血液のドレナージ部位として使用される。腎臓機能に障害を有する患 者に対して行われるいわゆる血液透析において特に、いわゆる人工腎臓中におけ る血液の浄化と関連して毎週数回迄の規則的な間隔で使用される挿入された血管 補綴物またはバイパスを使用することは普通である。In medical technology, introducing vascular prostheses, so-called bypasses, between blood vessels Comparatively for drainage of blood for analytical testing or purification purposes. often required. This 9-pass which can be inserted for a long time is the next intended eye. Used as a blood drainage site for targets. Patients with impaired renal function Especially in so-called hemodialysis performed on patients, especially in so-called artificial kidneys. inserted blood vessels used at regular intervals up to several times each week in connection with blood purification The use of prostheses or bypasses is common.
しかしながら例えば血液透析遂行と関連して用いられる知られた血管補綴物また はバイパスは重大な不便を蒙り易い。血管補綴物としては通常いわゆる異種移植 片(heterograft)、すなわち動物例えば牛、羊寸たは豚起原のもの からとった血管片が使用される。特別な方法で処理されたかかる異種移植ハはク セノブラフt・(xenograft)と呼ばれそして長時間挿入に耐える目的 および組織和合性材料を構成する目的で動物から得られる化学的または物理的に 処理された血管からなる。かかる/+イパスは外科手術によりその一方の端を例 えば患者の腕の動脈にそしてもう一方の端を静脈に導入され、そしてこの方法で 該二本の血管を連結して血液の断続的ドレナージ、排出された血液の浄化および かかる血液の患者の血液系への復帰を可能にする。However, known vascular prostheses or Bypassing is likely to cause serious inconvenience. Vascular prostheses are usually so-called xenografts. a heterograft, i.e. of animal origin, such as a cow, sheep, or pig; A piece of blood vessel taken from is used. Such xenografts treated in a special way are It is called Xenograft and its purpose is to withstand long-term insertion. and chemically or physically obtained from animals for the purpose of constructing tissue-compatible materials. Consists of treated blood vessels. Such a / + path is removed at one end by surgical operation. for example into an artery in the patient's arm and the other end into a vein, and in this way The two blood vessels are connected for intermittent drainage of blood, purification of drained blood, and Allowing the return of such blood to the patient's blood system.
しかしながら、動脈と静脈を結合させるためのかかるタイプの接続片の使用に関 連して実際上問題があり、それらについてはり下にあげられうる。However, there are concerns regarding the use of such types of connecting pieces for joining arteries and veins. There are also practical problems that can be raised below.
血液のドレナージに関連して皮膚の下に手術により挿入されるパイ・ξスはカニ ユーレで刺し貫かれる。ドレナージを反復した後ではバイパスはその弾力性を失 ない、そして血液処理が終了したあとにカニユーレをとり外した場合血液分析に とっての血液の慣用のトレナー洛、におけると同じ方法で常法により血液を凝固 させるたやドレナージ部位に圧力をかける必要がある。バイパスの材料がその弾 性を喪失した場合は、バイパスに外部から圧力をかけて血液を凝固させたのちに バイパス捷たは血管補綴物に対する圧力がゆるめられた場合、後者がその正常に 膨張した位置に復旧せずしかして圧縮された位置に留まりそれにより血液循環を 乱すということになる。A tube that is surgically inserted under the skin in connection with blood drainage is a cannibal. It is pierced by Yule. After repeated drainage, the bypass loses its elasticity. If the cannula is removed after blood processing is completed, blood analysis will not be possible. Coagulate the blood by the conventional method in the same way as in the conventional blood trainer Raku. It is necessary to apply pressure to the drainage area. The bypass material is the bullet. If you have lost your sex, apply external pressure to the bypass to coagulate the blood, and then If the pressure on the bypass or vascular prosthesis is relieved, the latter will return to its normal state. It does not return to the inflated position, but instead remains in the compressed position, thereby improving blood circulation. It means disturbing it.
このタイプの血管補綴物の使用におけるもう一つの問題は補綴物の一方の端が手 術により挿入された領域と関連してバイパスから流された血流による静脈組織へ の影響にある。実験ではなかんずくこのことが血管補綴物の接続部位の数センチ メートル内側の静脈に形成されるいわゆる狭窄を生じさせることが示される。Another problem with the use of this type of vascular prosthesis is that one end of the prosthesis to the venous tissue due to blood flow diverted from the bypass in relation to the surgically inserted area. Due to the influence of Experiments have shown that this, among other things, It is shown that the so-called stenosis is formed in the veins inside the meter.
本発明は前記指摘された問題が排除されるがまたは実質上減少した血管補綴物を 提供する目的を有する。The present invention provides a vascular prosthesis in which the problems noted above are eliminated or substantially reduced. have a purpose to provide.
本発明の他の目的は特に動脈を静脈に接続するためのバイノξスとして機能する かかる血管補綴物の適用法を提供することにある。Another object of the invention is to act in particular as a binoculars for connecting arteries to veins. The object of the present invention is to provide a method for applying such a vascular prosthesis.
本発明の創作物に関連して、前記した従来法と比較して実質的なオU点を構成す るところの組織和合性材料の管状構成要素からカる血管補綴物を提供することが 可能であると判明した。本発明による血管補綴物は内部に弾性的に立直りの早い 支持構成物を備えて2りこのものは構成要素の少くとも一方の端でその末端の外 部に伸張している。本発明全静脈への動脈の永久的または長期的接続に適用する 場合管状構成要素の前記末端は静脈に接続されそして外部に伸張する支持構成物 は従って血液循環を妨げないように静脈を膨張した位置に内側から保持する目的 で静脈内に伸張する。In connection with the creation of the present invention, it constitutes a substantial point compared to the conventional method described above. It is possible to provide a vascular prosthesis made from a tubular component of a tissue-compatible material. It turned out to be possible. The vascular prosthesis according to the present invention has internal elasticity and quick recovery. A support structure is provided on at least one end of the component and extends outside the distal end of the component. It extends to the part. The present invention applies to permanent or long-term connections of arteries to all veins. If said end of the tubular component is connected to a vein and extends outwardly from the support construct Therefore, the purpose is to hold the veins in an inflated position from the inside so as not to obstruct blood circulation. Stretch into the vein.
管状構成要素は天然捷たは合成性質を有する任意の組織和合性材料から作られつ る。従って、前記構成要素中には例えば特に牛、羊または豚起原の異種移植片に おいて使用される種々の型の伝統的な接続片材料が使用されうる。本発明によれ ば管状構成要素中には化学的−または物理的に特別に調製された異種移植片であ るいわゆるクセノブラフト中に存在するかかる物質を使用するのが好tLい。ア ルいは寸た、ポリエチレンテレフタレート、ポリテトラフルオロエチレン、ポリ エチレン、ポリプロピレン等のような合成の組織和合性物質が使用されうる。The tubular component may be made from any tissue-compatible material of natural or synthetic nature. Ru. Thus, some of the components may include, for example, xenografts of bovine, ovine or porcine origin. Various types of traditional connection piece materials used in can be used. According to the present invention For example, the tubular component contains specially prepared chemically or physically xenografts. It is preferable to use such substances which are present in so-called xenoblafts. a polyethylene terephthalate, polytetrafluoroethylene, polyethylene terephthalate, polytetrafluoroethylene, Synthetic tissue compatible materials such as ethylene, polypropylene, etc. may be used.
しかしながら、本発明によればヒ)9外の、異種移植片型の生物学的物質を使用 するのが特に好ましい。However, according to the present invention, xenograft-type biological materials other than H) 9 are used. It is particularly preferable to do so.
管状構成要素内に配置される支持構成物は多くの方法で設計されつる。例えは構 成要素の内壁に調整された圧力ケ約束するらせん形状の渦巻バネから成りつる。The support structure disposed within the tubular component can be designed in many ways. The example is It consists of a spiral spring in the form of a helix that ensures a regulated pressure on the inner wall of the component.
この渦巻バネの材料としては組織和合性材料、例えばステンレススティール、捷 たけ充分な剛性を有するプラスチック材料が使用されうる。かかる渦巻バネに関 するそれり上の詳細はスウェーデン特許出願第8202740−0号から明らか である。The material for this spiral spring is a tissue-compatible material such as stainless steel or steel. Plastic materials with sufficient rigidity can be used. Regarding such a spiral spring, Further details are available from Swedish Patent Application No. 8202740-0. It is.
あるいはまた、支持構成物としてそのそれぞれガ共通軸としての管状体の中心線 をじってらせん配置−伸張する幾つかの個々の剛いしかし可撓性の糸状構成要素 から構成される曲げ易い管状体が使用されうる。多数の構成要素が同じ巻き方向 を有するがしがし相互に関して軸方向に移動する。同じ巻き方向を有する前記し た多数の構成要素はこれも相互に関して軸方向に移動するがしかし反対の巻き方 向を有する多数の糸状構成要素と出会いそして交叉している。かかる管状体はそ の管状体を軸方向に短かくすることによシ膨張され得るがまたは管状体を軸方向 に伸長することにより直径が減少されうる。Alternatively, the centerline of the tubular body as a common axis of each of its supporting structures. Twisted helical arrangement - several individual rigid but flexible filamentous components that stretch A flexible tubular body composed of can be used. Many components have the same winding direction The insulators move axially with respect to each other. The above with the same winding direction The multiple components also move axially with respect to each other, but in opposite windings. It encounters and intersects with a number of oriented filamentous components. Such a tubular body can be expanded by shortening the tubular body axially or by shortening the tubular body axially. The diameter can be reduced by stretching.
血管補綴物の直径はそれがどこに適用されるかの如何により比較的広範囲に変動 しうるがしかし取も頻度の高い寸法は約3〜10咽である。管状構成要素の外部 に伸張する支持構成物の部分は適当には管状構成要素の内径の約20倍まで、特 に所望の機能を与えるために前記直径の63〜12倍の長さを有する。この方法 で支持構成員の伸張性末端により、知られているように、血圧が低くそしである 場合には大気圧に対して負でさえありうる静脈から血管が成る場合に特に包囲す る血管の内側における満足できる支持機能が得られる。The diameter of a vascular prosthesis varies over a relatively wide range depending on where it is applied. However, the most common size is about 3 to 10 throats. Exterior of tubular component The portion of the support structure that extends into the tubular component is suitably up to about 20 times the inner diameter of the tubular component. The length is 63 to 12 times the diameter to provide the desired function. this method As is known, blood pressure is lower due to the extensible ends of the supporting members. Particularly when the blood vessels consist of veins, which in some cases may even be negative with respect to atmospheric pressure, A satisfactory support function inside the blood vessel is obtained.
本発明による血管補綴物を使用することにより先に述べた問題が簡単で効果的な 方法により排除される。従って、挿入全期間中にわたシ補綴物は満足できる弾性 を保持しておりかくして血液のドレナージは問題なく行われうる。反対方向に渦 巻いた構成要素からなる渦巻バネまたは管状構成物を用いる場合に存在するもう 一つの利点は補綴物中にカニユーレを導入するとバネ物質の拡大を来しこれが次 にカニユーレの除去および支持構成物の正常位置への復帰後にカニユーレにより 惹起された補綴物の開口部の収縮を生じてほとんど自動的密閉を与えるという事 実である。支持構成物の伸張する部分のおかげで静脈の適用部位に関連して狭窄 が形成される危険も回避されよう。By using the vascular prosthesis according to the invention, the problems mentioned above can be easily and effectively solved. excluded by the method. Therefore, the Watashi prosthesis exhibits satisfactory elasticity during the entire insertion period. , and thus blood drainage can be carried out without problems. vortex in the opposite direction The additional features that are present when using spiral springs consisting of wound components or tubular constructions One advantage is that introducing a cannula into the prosthesis results in an expansion of the spring material, which in turn after removal of the cannula and return of the support structure to its normal position. The induced contraction of the opening of the prosthesis provides an almost automatic seal. It's true. Narrowing in relation to the application site of the vein thanks to the extending part of the supporting construct This will also avoid the risk of the formation of
本発明は添付図面に関して非限定的例によりり下にさらに記述されよう。図面に は規則的な間隔で血液透析を実施するために長期持続性挿入に対し適用される本 発明による血管補綴物の概略図が示される。The invention will be further described below by way of non-limiting example with reference to the accompanying drawings, in which: FIG. to the drawing This book applies to long-term continuous insertion to perform hemodialysis at regular intervals. A schematic diagram of a vascular prosthesis according to the invention is shown.
図面においては動脈5と静脈7の間に結合された本発明による一般的に1で示さ れる血管補綴物が概略的に示される。バイパスまたは血管補綴物1は支持構成物 としてらせん形状の渦巻バネ3を含有しておジこのものは動脈の適用部位9から 管状構成要素2を通って静脈7の連結部位11まてそしてそれを越えて距離13 にまで伸張している。In the drawings, there is shown generally 1 according to the invention connected between an artery 5 and a vein 7. A vascular prosthesis is schematically shown. Bypass or vascular prosthesis 1 is a support structure This one contains a spiral spring 3 in a helical shape and is connected from the application site 9 of the artery. Through the tubular component 2 to the connection site 11 of the vein 7 and beyond it a distance 13 It has expanded to.
管状構成要素2は好ましくは例えば牛起原のいわゆるクセツクラフト、すなわち 適当な方法で化学的および/または物理的に処理された異種移植片により構成さ れる。The tubular component 2 is preferably made of so-called kusetsu craft, for example of bovine origin, i.e. Comprised of xenografts that have been chemically and/or physically treated in an appropriate manner. It will be done.
渦巻バネろは医療上受容されうるステンレススティールにより構成されつる。The spiral spring filter is constructed from medically acceptable stainless steel.
動脈5を静脈7に連結させるための血管樟綴物の適用または挿入法は例えば手短 かに記載すれば外のとおりである。The method of applying or inserting a vascular cord to connect the artery 5 to the vein 7 is simple, for example. If you write it down, it is as shown below.
第一段階として患者の静脈7を外科的切開により開け、次に管状構成要素2、例 えばクセツクラフト、を常法によシ縫い付けることにより静脈に結合させる。次 に渦巻バネ6を外側から管状構成要素1中へ挿入する。これは渦巻バネ6を何ら がの適当な方法、例えば末端を相互に関して回転させることにより収縮させ、そ して次に渦巻バネ3を図面に示される位置に置きそしてその目的に適合する圧力 を用いてこの位置において固定させるために膨張させることによυ々される。静 脈7の方に伸張する末端は管状構成要素1の外側に適当な距離16にまで拡がり 、これは血液透析に適用された場合に釣3〜4mであシうる。As a first step, the patient's vein 7 is opened by a surgical incision and then the tubular component 2, e.g. For example, the kusetsu craft is attached to the vein by sewing in a conventional manner. Next The spiral spring 6 is inserted into the tubular component 1 from the outside. This is the spiral spring 6 retract by any suitable method, e.g. by rotating the ends with respect to each other; and then place the spiral spring 3 in the position shown in the drawing and apply a pressure suitable for its purpose. It is then inflated to fix it in this position. Silence The end extending towards the vein 7 extends a suitable distance 16 outside the tubular component 1. , which can be achieved with a length of 3 to 4 m when applied to hemodialysis.
渦巻バネ6を管状構成要素1にとりつけたのちバネ50反対側の末端を管状構成 要素のもう一方の末端の位置で切断する。次に患者の皮膚を開きそして血管補綴 物を皮膚下に挿入しそして開口した動脈5に縫合によりとり付ける。血管補綴物 1のこの末端では何ら渦巻バネ3の延長した末端は要求され々いであろう、何故 なら動脈には過圧が存在するからである。After attaching the spiral spring 6 to the tubular component 1, the opposite end of the spring 50 is attached to the tubular configuration. Cut at the other end of the element. The patient's skin is then opened and the vascular prosthesis The object is inserted under the skin and attached to the opened artery 5 by suture. vascular prosthesis At this end of 1 no extended end of spiral spring 3 would be required, why? This is because there is overpressure in the artery.
血管補綴物をとり伺けたのちその補綴物は今や容易に局在できぞして血液ドレナ ーアのために容易に刺し貫ぬかれうる。After accessing the vascular prosthesis, the prosthesis is now easily localized and drains blood. - can be easily penetrated by
渦をバネ6の構造およびその適用に関する詳細については前記スウェーデン特許 出願第8202740−0号を参照されたい。Further details regarding the structure of the vortex spring 6 and its application can be found in the aforementioned Swedish patent. See application no. 8202740-0.
幾つかの有用ゾ支持構成物のうちでは他の考案物もあげられつる。その考案物に おいては管状体の外被表面は多数の個々の糸状構成要素からなる。これら糸状構 成要素のうち一組の構成要素は共通軸としての管状体の中心線を有する相互に関 して軸方向に移動されるらせん配置において伸張している。他の組の構成要素は 反対の巻き方向にらせん配置で伸張し、糸状構成要素は相互に交叉して反対方向 に拡がって円筒状に縮重れた配列を形成する。Other devices may be mentioned among some useful support structures. to that invention In this case, the jacket surface of the tubular body consists of a number of individual filamentous components. These filamentous structures The components of a set of components are related to each other with the centerline of the tubular body as a common axis. and extended in a helical arrangement that is moved axially. The other set of components are Stretched in a helical arrangement in opposite winding directions, the filamentous components cross each other in opposite directions. It spreads out to form a cylindrical degenerate array.
この方゛法で組み立てられた管状体の直径は相互に関して管状体の末端を軸方向 へ移動させることによυ中心線の方向へ変動されうる。管状体は幾通りかの方法 で膨張できそして管状体がその解放された状態でそれ自身により膨張した位置を とる能力を固有に有することが好ましい。これは管状体の材料の引張りを用いる ことにより与えられうる。The diameter of the tubular bodies assembled in this manner is axially the ends of the tubular bodies with respect to each other. υ can be varied in the direction of the center line by moving it to . The tubular body can be made in several ways. and the tubular body assumes the expanded position by itself in its released state. It is preferable to have the inherent ability to take This uses tension in the material of the tubular body It can be given by
今記載した支持構成物の機能は他の点では図面に関連して記載されたのと同じで ある。The function of the support structure just described is otherwise the same as described in connection with the drawing. be.
本発明がこれまで記載した態様および適用に限定されるものでないことは認めら れるべきである。従って、本発明の考案物は試料採取、分析、透析等のために血 液排出の目的でいわゆるバイパスを用いることにより2本の血管を相互に連結さ せることが所望されるすべての場合に使用されつる。寸た血管補綴物のと9付は 法もこh−1で記載したことに限定きれるものではない。従って、管状構成要素 が内部支持構成物、例えば渦巻バネと共に先に提供されることは充分溝えられ、 そして支持構成物の構成要素の少くとも一方の末端がその要素の末端の外側にあ る距離伸張することに注意すべきである。支持構成物と共に先に提供された管状 構成要素は次に支持構成物が外側に伸張する末端で縫い付けることにより静脈に とり付けられ、一方構成要素の他の末端は動脈にとシ付けられる。It is acknowledged that the invention is not limited to the embodiments and applications described so far. Should be. Therefore, the device of the present invention can be used to collect blood for sample collection, analysis, dialysis, etc. Two blood vessels are interconnected by using a so-called bypass for the purpose of fluid drainage. Vine is used in all cases where it is desired to The size of the vascular prosthesis and 9 attachments are The law is not limited to what is described in h-1. Therefore, the tubular component It is well provided that the is previously provided with an internal support structure, such as a spiral spring, and and at least one end of a component of the support structure is outside the end of that element. It should be noted that the distance will be extended. Tubular provided earlier with supporting structure The component is then attached to the vein by sewing at the end where the supporting construct extends outward. The other end of the component is attached to the artery while the other end of the component is attached.
前記した本発明によシ提供される利点に加え血管補綴物が例えば血液透析に使用 するために皮下にとQ付けられたのちに従来使用された血管補綴物の場合のよう に回転捷たは折り返すことなくよりよくとり付けられるであろうというもう一つ の利点が得られよう。内部支持構成物のおかげで血管補綴物は弾性が得られ、そ れが血管補綴物を操作において安全にしそして使用を容易にしている。In addition to the advantages provided by the invention described above, the vascular prosthesis can be used for example in hemodialysis. As in the case of conventionally used vascular prostheses, which are placed subcutaneously in order to Another thing that would be better installed without rotating or folding You will get the benefits of The internal support structure gives the vascular prosthesis its elasticity and This makes the vascular prosthesis safe in operation and easy to use.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8300578-5 | 1983-02-03 | ||
SE8300578A SE446372B (en) | 1983-02-03 | 1983-02-03 | BLOODKERL PROTES FOR USE AS SHUNT BETWEEN BLOODKERL |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60500520A true JPS60500520A (en) | 1985-04-18 |
JPH0472547B2 JPH0472547B2 (en) | 1992-11-18 |
Family
ID=20349888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59500679A Granted JPS60500520A (en) | 1983-02-03 | 1984-01-26 | vascular prosthesis |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS60500520A (en) |
CH (1) | CH660299A5 (en) |
FR (1) | FR2540379A1 (en) |
SE (1) | SE446372B (en) |
WO (1) | WO1984003036A1 (en) |
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WO2021010434A1 (en) * | 2019-07-17 | 2021-01-21 | 国立大学法人東北大学 | Vascular corrective device and method for supporting anastomotic site |
Also Published As
Publication number | Publication date |
---|---|
SE8300578L (en) | 1984-08-04 |
WO1984003036A1 (en) | 1984-08-16 |
JPH0472547B2 (en) | 1992-11-18 |
CH660299A5 (en) | 1987-04-15 |
SE8300578D0 (en) | 1983-02-03 |
SE446372B (en) | 1986-09-08 |
FR2540379A1 (en) | 1984-08-10 |
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