JPS59500502A - blood vessel substitute - Google Patents
blood vessel substituteInfo
- Publication number
- JPS59500502A JPS59500502A JP58501095A JP50109583A JPS59500502A JP S59500502 A JPS59500502 A JP S59500502A JP 58501095 A JP58501095 A JP 58501095A JP 50109583 A JP50109583 A JP 50109583A JP S59500502 A JPS59500502 A JP S59500502A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- substitute
- helix
- blood vessel
- pitch
- 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
Links
- 210000004204 blood vessel Anatomy 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000004753 textile Substances 0.000 claims description 6
- 230000002792 vascular Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- AFJYYKSVHJGXSN-KAJWKRCWSA-N selamectin Chemical compound O1[C@@H](C)[C@H](O)[C@@H](OC)C[C@@H]1O[C@@H]1C(/C)=C/C[C@@H](O[C@]2(O[C@@H]([C@@H](C)CC2)C2CCCCC2)C2)C[C@@H]2OC(=O)[C@@H]([C@]23O)C=C(C)C(=N\O)/[C@H]3OC\C2=C/C=C/[C@@H]1C AFJYYKSVHJGXSN-KAJWKRCWSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (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】 血管代用物 本発明は血管代用物に係り、具体的には、人間又（は動物の体内の血管の一部分 を交換するのに用いられるようにされた織物材料でなるチューブの形をした代用 物に係る。[Detailed description of the invention] blood vessel substitute The present invention relates to a blood vessel substitute, and specifically relates to a blood vessel substitute in a human or animal body. a substitute in the form of a tube of textile material adapted to be used to replace Pertaining to things.
血管代用物は周知でおり、通常、円周方向のひだを備えている編製されたチュー ブで作られている。ひだは２つの理由で備えられており、１つは装着中に代用物 が長手方向に伸長せられるのを可能ならしめるためでろシ、他の１つは適正な可 撓性を保ちつつ圧潰又は座屈に対する剛性を付与するためである。このような理 由で、今までは、成る一定の最小深さ即ち振幅を有している移植組織片のひだに 対して所定の直径を備えせしめることが必要であった。ひだは、移植された組織 片を通る血液の流れに対し必ず成る程度の抵抗を及ぼすので、座屈及び圧潰に対 する所望の程度の剛性及び抵抗を付与しつつそのひだの振幅を可能な限り小さく することが望ましい。Vascular substitutes are well known and are typically knitted tubes with circumferential pleats. It is made of bu. The pleats are provided for two reasons, one is to provide a substitute during wearing. The other one is to make it possible to extend longitudinally. This is to provide rigidity against crushing or buckling while maintaining flexibility. This kind of principle Until now, implant folds had a certain minimum depth or amplitude consisting of It was necessary to provide a predetermined diameter. The fold is the transplanted tissue It provides a certain amount of resistance to blood flow through the piece, making it resistant to buckling and crushing. The amplitude of the folds is made as small as possible while providing the desired degree of stiffness and resistance. It is desirable to do so.
血管移植組織片の使用に際し、座屈及び圧潰に対して同じ剛性及び抵抗特性を有 していて、しかもひだがそれの直径に比較してよシ小さな振幅を有しているよう なひだ付きチューブ、あるいは、内径に対するひだの振幅の比率が同じでｂって も、座屈及び圧潰に対し２ より高い剛性及び抵抗を備えたひだ付きチューブというものが得られれば、極め て有利であることは明らかである。本発明の目的は、このような血管代用物を提 供することである。When used with vascular grafts, they have the same stiffness and resistance properties to buckling and crushing. Moreover, the folds seem to have a very small amplitude compared to their diameter. plain pleated tubes, or with the same ratio of pleat amplitude to inner diameter 2 against buckling and crushing A pleated tube with higher stiffness and resistance would be extremely useful. It is clear that this is advantageous. The purpose of the present invention is to provide such a blood vessel substitute. It is to provide.
本発明てよる血管代用物は一次嗟旋体の形をしたひだを備えている織物材料でな るチューブを有しており、その−次螺旋体に対し逆方向の、そしてその−次螺旋 体のピッチよりも大きなピッチの二次螺旋体の形をした二次ひだがその一次螺旋 体のひだに重ねられていることを特徴としている。The vascular substitute according to the invention is a textile material provided with folds in the form of primary convoluted bodies. The tube has a tube in the opposite direction to the next helix, and the second helix A secondary fold in the form of a secondary helix with a pitch greater than that of the body, but its primary helix It is characterized by being layered over the folds of the body.
より明確な形で説明すれば、一方の螺旋体は左巻き即ちＳピッチであり、他方の 螺旋体は右巻き即ちＺピッチである。To put it more clearly, one spiral is left-handed, or S-pitch; The helix is right handed or has a Z pitch.
織物材料でなるチューブは、たて編み、機織り、又は組みによって形成すること ができ、好ましくは継目無しである。Tubes of textile material may be formed by warp knitting, weaving, or plaiting. , preferably seamless.
本発明による代用物は次のようπして形成することができる。即ち、剛体をなす 組み口（ｆａｒｍａｒ ）にチューブを保持した状態でそのチューブのまわシに 糸を一方の方向に巻付（げて−次螺旋体の輪郭を描き、次いでチューブのまわシ に逆方向に別の糸を巻付けて二次螺旋体の輪郭を描き、次いで両端から向い合っ た方向の軸一方向圧力を作用せしめ、それによりチューブの長さを縮め、糸の巻 付は部間のチューブの部分を外方＼膨出させてひだを形成し、チューブをこの状 態に保持したままで材料を熱処理してチューブＨ料を固定させ、ひだを恒久化さ せ、こうして代用物は形成され得る。A substitute according to the invention can be formed as follows. In other words, it forms a rigid body. While holding the tube in the farmar, turn the tube Wrap the thread in one direction to outline the helix, then wrap the thread around the tube. Wrap another thread in the opposite direction to outline the secondary helix, then wrap it oppositely from each end. unidirectional pressure is applied to the axis, thereby reducing the length of the tube and winding the thread. Attaching is done by bulging out the part of the tube between the parts to form pleats, and keeping the tube in this shape. Heat-treat the material while holding it in place to fix the tube H material and make the pleats permanent. and thus a substitute can be formed.
本発明による血管代用物の具体的実施例は添付図面に示されており、その図面中 １は織物材料でなるチューブを示し、２（は−次螺旋体を示し、３（Ｌ′ｉその 一次螺旋体２に重ねられた二次螺旋体を示している。Specific embodiments of the vascular substitute according to the invention are shown in the accompanying drawings, in which 1 indicates a tube made of textile material, 2( indicates a -order helix, and 3(L'i its A secondary spiral is shown superimposed on the primary spiral 2.
本発明による代表的な代用物の寸法は次の通りである。即ち、最小内径ｊ″ｉ１ ０ ｍｍであり、−次螺旋体のピンチは１１ｍ当り１０ター／（巻数）であり、 二次螺旋体のピンチは１Ｃ−ｍ幽り２ターノであり、ひだの深さは０．８罷であ る。その所与のひだの深さにより、最小直径の代用物における座屈及び圧潰に対 する必要と一２ｈる程度の剛性及び抵侃か得られる。１組のひたしが有していな い同じ最小直径の既知の代用物では、１ｃｍＭり約７ターンのピッチで少なくと も１．２ｍ＋ｎの深さのひだが必要とされる。The dimensions of a typical substitute according to the present invention are as follows. That is, the minimum inner diameter j″i1 0 mm, the pinch of the -th spiral is 10 ter/(number of turns) per 11 m, The pinch of the secondary spiral is 1C-m and 2 turns, and the pleat depth is 0.8 threads. Ru. Its given pleat depth resists buckling and crushing in the smallest diameter surrogate. It provides about 12 hours of stiffness and resistance. One group of Hitashi has With known substitutes of the same minimum diameter, at least a pitch of about 7 turns per cmM. Also, a pleat depth of 1.2 m+n is required.
実際の実験によって判明したところによれば、振幅の小さな２組の逆ピンチをな アひだを有している上述したごと合本発明による血管代用物は、チューブを通る 血液の流れに対しより小さな抵抗しか作用させず、また、１組のよυ大きな振幅 のひだから得られた、座屈及び圧潰に対し同程度の剛性及び抵抗の既知の血管代 用物よりも、解離性組織の形成１Ｃおいてより高い均一性を提供し、その理由は 、本発明の代用物によって形成された移植組織片が、１組の大きな振幅のひだを 有している今までに知られている移植組織片の場合よりも、一定直径血管１Ｃよ り近似したものを提供するからである。逆に言えば、既知の血管代用物と同じ振 幅のひだを備えた本発明の代用物は、座屈及び圧潰に対しより高い度合の剛性及 び抵抗を有している。According to actual experiments, two sets of reverse pinches with small amplitudes are used. The above-described blood vessel substitute according to the present invention having a fold can be passed through a tube. It exerts less resistance to blood flow and also has a larger amplitude than the one pair. A known vessel of comparable stiffness and resistance to buckling and collapse obtained from the folds of The reason is that it provides a higher uniformity in the formation of dissociated tissue than the , implants formed by the substitutes of the present invention exhibit a set of large amplitude folds. Compared to previously known grafts that have a constant diameter of 1C, This is because it provides a better approximation. Conversely, the same shaking as known blood vessel substitutes The substitute of the present invention with wide pleats provides a higher degree of stiffness and resistance to buckling and crushing. and resistance.
浄書（内容に変更なし） 手続補正書（方式） 昭和５９年１ 月１７日 特許庁長官殿 ２、発明の名称 欽嗜へ兇砦 ３、補正をする者 事件との関係 特許出願人 ５、補正命令の日付 昭和５８年 １２月２０日 ６、補正により増加する発明の数 国際調査報失Engraving (no changes to the content) Procedural amendment (formality) January 17, 1980 Commissioner of the Patent Office 2. Name of the invention A stronghold for Qinchu 3. Person who makes corrections Relationship to the incident: Patent applicant 5. Date of amendment order December 20, 1982 6. Number of inventions increased by amendment international investigation report
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8208866 | 1982-03-25 | ||
| GB8208866 | 1982-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59500502A true JPS59500502A (en) | 1984-03-29 |
| JPS6038135B2 JPS6038135B2 (en) | 1985-08-30 |
Family
ID=10529291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58501095A Expired JPS6038135B2 (en) | 1982-03-25 | 1983-03-24 | blood vessel substitute |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0104199A1 (en) |
| JP (1) | JPS6038135B2 (en) |
| DK (1) | DK531983D0 (en) |
| ES (2) | ES520934A0 (en) |
| GR (1) | GR77133B (en) |
| IT (1) | IT8347996A0 (en) |
| WO (1) | WO1983003349A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3637115A1 (en) * | 1986-10-31 | 1988-05-05 | Standard Elektrik Lorenz Ag | POLED FLAT RELAY |
| US5282847A (en) * | 1991-02-28 | 1994-02-01 | Medtronic, Inc. | Prosthetic vascular grafts with a pleated structure |
| AUPN228395A0 (en) * | 1995-04-11 | 1995-05-04 | Hart, Vincent G. | Artificial arterial-venous graft |
| US5641373A (en) * | 1995-04-17 | 1997-06-24 | Baxter International Inc. | Method of manufacturing a radially-enlargeable PTFE tape-reinforced vascular graft |
| US6863686B2 (en) | 1995-04-17 | 2005-03-08 | Donald Shannon | Radially expandable tape-reinforced vascular grafts |
| DE69629679T3 (en) * | 1995-06-07 | 2011-07-07 | Edwards Lifesciences Corp., Calif. | REINFORCED VIDEO IMPLANT WITH AN OUTSTANDING SUPPORTED TAPE |
| GB9828696D0 (en) | 1998-12-29 | 1999-02-17 | Houston J G | Blood-flow tubing |
| EP1335681B1 (en) | 2000-11-15 | 2006-12-20 | McMURRAY FABRICS INCORPORATED | Soft-tissue tubular prostheses with seamed transitions |
| US20040019375A1 (en) | 2002-07-26 | 2004-01-29 | Scimed Life Systems, Inc. | Sectional crimped graft |
| US7879085B2 (en) | 2002-09-06 | 2011-02-01 | Boston Scientific Scimed, Inc. | ePTFE crimped graft |
| GB0406719D0 (en) * | 2004-03-25 | 2004-04-28 | Tayside Flow Technologies Ltd | A tubular conduit |
| GB2429650A (en) | 2005-09-06 | 2007-03-07 | Tayside Flow Technologies Ltd | A tubular graft |
| GB2475338A (en) | 2009-11-17 | 2011-05-18 | Tayside Flow Technologies Ltd | A tubular conduit with an internal and external helical formation |
| US11969335B2 (en) | 2020-04-28 | 2024-04-30 | Cook Medical Technologies Llc | Woven graft having a taper with a re-engaged warp end |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337673A (en) * | 1958-07-31 | 1967-08-22 | Us Catheter & Instr Corp | Uniformly corrugated prosthesis and process of making same |
| US3029819A (en) * | 1959-07-30 | 1962-04-17 | J L Mcatee | Artery graft and method of producing artery grafts |
| US3479670A (en) * | 1966-10-19 | 1969-11-25 | Ethicon Inc | Tubular prosthetic implant having helical thermoplastic wrapping therearound |
| DE1988184U (en) * | 1968-03-27 | 1968-06-20 | Guenther Gubela | IRRIGATION AND DRAINAGE PIPE MADE OF THERMOPLASTIC PLASTIC. |
-
1983
- 1983-03-22 GR GR70855A patent/GR77133B/el unknown
- 1983-03-24 WO PCT/GB1983/000090 patent/WO1983003349A1/en not_active Application Discontinuation
- 1983-03-24 ES ES520934A patent/ES520934A0/en active Granted
- 1983-03-24 EP EP83900955A patent/EP0104199A1/en not_active Withdrawn
- 1983-03-24 JP JP58501095A patent/JPS6038135B2/en not_active Expired
- 1983-03-25 IT IT8347996A patent/IT8347996A0/en unknown
- 1983-11-21 DK DK5319/83A patent/DK531983D0/en not_active Application Discontinuation
- 1983-12-01 ES ES1983284568U patent/ES284568Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK531983A (en) | 1983-11-21 |
| GR77133B (en) | 1984-09-07 |
| DK531983D0 (en) | 1983-11-21 |
| ES284568U (en) | 1985-09-16 |
| ES8403312A1 (en) | 1984-03-16 |
| ES284568Y (en) | 1986-05-01 |
| JPS6038135B2 (en) | 1985-08-30 |
| ES520934A0 (en) | 1984-03-16 |
| IT8347996A0 (en) | 1983-03-25 |
| EP0104199A1 (en) | 1984-04-04 |
| WO1983003349A1 (en) | 1983-10-13 |
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