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1. WO2005037360 - 脈管用ステント供給装置

公開番号 WO/2005/037360
公開日 28.04.2005
国際出願番号 PCT/JP2004/015288
国際出願日 15.10.2004
IPC
A61M 29/00 2006.01
A生活必需品
61医学または獣医学;衛生学
M人体の中へ,または表面に媒体を導入する装置;人体用の媒体を交換する,または人体から媒体を除去するための装置;眠りまたは無感覚を生起または終らせるための装置
29媒体,例.薬剤,を導入する手段を有するまたは有しない拡張器
CPC
A61F 2/95
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
95Instruments specially adapted for placement or removal of stents or stent-grafts
A61F 2/958
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
95Instruments specially adapted for placement or removal of stents or stent-grafts
958Inflatable balloons for placing stents or stent-grafts
A61F 2/97
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
95Instruments specially adapted for placement or removal of stents or stent-grafts
962having an outer sleeve
97the outer sleeve being splittable
A61F 2002/9583
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
95Instruments specially adapted for placement or removal of stents or stent-grafts
958Inflatable balloons for placing stents or stent-grafts
9583Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
出願人
  • 株式会社 伊垣医療設計 KABUSHIKIKAISHA IGAKI IRYO SEKKEI [JP]/[JP] (AllExceptUS)
  • 伊垣 敬二 IGAKI, Keiji [JP]/[JP] (UsOnly)
発明者
  • 伊垣 敬二 IGAKI, Keiji
代理人
  • 小池 晃 KOIKE, Akira
優先権情報
2003-35535815.10.2003JP
公開言語 (言語コード) 日本語 (JA)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) VESSEL STENT FEEDER
(FR) DISPOSITIF DE MISE EN PLACE DE STENT
(JA) 脈管用ステント供給装置
要約
(EN)
A vessel stent feeder to be used for implanting a vessel stent 3 in a vessel which comprises: a catheter (1) which is inserted into a vessel in vivo; a balloon (2) which is attached to the periphery at the front edge of the catheter and inflated by a fluid fed into the catheter; a cylindrical vessel stent (3) made of a biodegradable polymer and having self-expandability which is attached to the balloon in a withered state; and a stent holder (21) provided to coat the catheter and at least a part of the vessel stent which is made of a polymer having been shaped into a cylinder and oriented in the logitudinal direction so as to hold the vessel stent on the balloon. The stent holder has an easily breakable part (22) at the front edge located in the front edge side of the catheter. As the balloon is inflated, the vessel stent expands and the stent holder is broken along the easily breakable part. Thus, the holding of the vessel stent is released to thereby allow the expansion of the vessel stent (3).
(FR)
L'invention concerne un dispositif de mise en place de stent utilisé pour implanter un stent (3) dans un vaisseau, lequel comprend: un cathéter (1) qui est inséré dans un vaisseau in vivo; un ballonnet (2) qui est fixé sur le bord avant de la périphérie du cathéter et gonflé par un fluide conduit dans le cathéter; un stent (3) cylindrique constitué d'un polymère biodégradable et auto-expansible, qui est fixé au ballonnet à l'état rétracté; et un porte-stent (21) conçu pour envelopper le cathéter et au moins une partie du stent, qui est constitué d'un polymère mis sous forme d'un cylindre et orienté dans le sens longitudinal de façon à maintenir le stent sur le ballonnet. Le porte-stent présente une partie frangible (22) sur son bord avant, laquelle est placée du côté du bord avant du cathéter. Lorsque le ballon se gonfle, le stent se déploie et le porte-stent se rompt le long de la partie frangible. Ainsi, le stent est libéré et peut ainsi finir de se déployer (3).
(JA)
 本発明は、脈管用ステント3を脈管内に植え込むために用いられる脈管用ステント供給装置であり、生体の脈管内に挿入されるカテーテル(1)と、カテーテルの先端部側の外周側に取り付けられ、カテーテルに供給される流体によって拡張されるバルーン(2)と、バルーン上に縮径された状態で装着される生分解性ポリマからなり自己拡張性を有する筒状の脈管用ステント(3)と、カテーテルから脈管用ステントの少なくとも一部を覆って配設され、脈管用ステントをバルーン上に保持するよう筒状に形成され、長軸方向に延伸されたポリマからなるステント保持部材(21)とを備える。ステント保持部材には、カテーテルの先端部側に位置する先端部に切り裂き容易部(22)が設けられている。ステント保持部材は、バルーンの拡張に伴って脈管用ステントが拡張することによって切り裂き容易部に沿って切り裂かれ、脈管用ステントの保持を解除し、脈管用ステント(3)の拡張を可能とする。
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