Guide for localizing a nonpalpable breast lesion
    1.
    发明授权
    Guide for localizing a nonpalpable breast lesion 失效
    本地化不可接受的乳腺炎指南

    公开(公告)号:US5221269A

    公开(公告)日:1993-06-22

    申请号:US597575

    申请日:1990-10-15

    摘要: A medical device for localizing a nonpalpable breast lesion. The device includes a tubular introducer needle and a wire guide positioned therein for inserting into a breast to the site of the lesion. The wire guide includes a distal portion having a preformed, resilient helical coil configuration for locking into position about the lesion. The distal portion includes a superelastic metallic alloy for maintaining the helical coil configuration after repeated extensions from and retractions into the needle passageway. The needle is inserted with the wire guide positioned therein into the breast to the site of the lesion and from the distal portion of the needle. The distal end of the needle includes a plurality of indentations for enhancing the ultrasound visualization thereof. As the distal portion of the wire guide emerges from the needle, the acuate distal end of the wire guide cuts into and scribes a helical path about the tissue distal to the lesion. The remainder of the distal portion of the wire guide follows the path scribed by the acuate distal tip and locks about the tissue distal to the lesion. Should the needle and wire guide not be appropriately positioned, the distal portion of the wire guide is retracted into the passageway of the needle to reposition the needle and guide. After desired positioning, the needle is removed with the wire guide remaining in a locked position distally about the lesion for guiding the surgeon to the lesion site during subsequent surgery.

    MULTIPLE WIRE GUIDE INTRODUCER SYSTEM
    4.
    发明申请
    MULTIPLE WIRE GUIDE INTRODUCER SYSTEM 有权
    多线指导系统

    公开(公告)号:US20080172064A1

    公开(公告)日:2008-07-17

    申请号:US11971364

    申请日:2008-01-09

    IPC分类号: A61F11/00

    CPC分类号: A61M25/0662 A61M25/0172

    摘要: An introducer system for introducing a plurality of wire guides into a vessel of a patient includes first and second wire guides, and a catheter. The first wire guide has a curved proximal end, and a distal end sufficiently flexible for passage through the vessel to a target site for the procedure. The catheter has proximal and distal open ends, and a lumen extending therebetween. At least the distal end of the catheter has sufficient flexibility for passage over the first wire guide to the target site, and has an inwardly curved portion between the proximal and distal open ends. The catheter further has a side port proximally positioned along the inwardly curved portion. The side port is sized and arranged such that the curve of the first wire guide proximal end is passable therethrough when the catheter is passed over the first wire guide. The second wire guide is sized for passage through the lumen when the first wire guide is positioned in the lumen. The second wire guide has a stiffness greater than the stiffness of the first wire guide.

    摘要翻译: 用于将多个线导引器引入患者的容器中的导引器系统包括第一和第二线引导件和导管。 第一线引导件具有弯曲的近端,并且远端具有足够的柔性,用于通过血管到达该过程的目标部位。 导管具有近端和远端开口端,以及在其间延伸的腔。 至少导管的远端具有足够的柔性,用于在第一线导向件上通过到目标部位,并且在近端和远端开口端之间具有向内弯曲的部分。 导管还具有沿着向内弯曲的部分向近侧定位的侧端口。 侧端口的尺寸和布置使得当导管穿过第一导线器时,第一导线器近端的曲线可以穿过其中。 当第一线引导件定位在内腔中时,第二线引导件的尺寸适于通过内腔。 第二导线器的刚度大于第一导线器的刚度。

    Stent deployment device including splittable sleeve containing the stent
    5.
    发明授权
    Stent deployment device including splittable sleeve containing the stent 失效
    支架展开装置,包括含支架的可拆卸套筒

    公开(公告)号:US06447540B1

    公开(公告)日:2002-09-10

    申请号:US08971113

    申请日:1997-11-14

    IPC分类号: A61F206

    摘要: A stent deployment device (10) includes a catheter (12), a stent (14) positioned on the catheter (12), and a sleeve (16) carried on the catheter (12). The sleeve (16) has a portion (18) extending fully over and containing the stent (14). The stent deployment device (10) also includes a mechanism (20) for splitting at least the portion (18) of the sleeve (16) extending over the stent (14) and, preferably, for splitting the entire sleeve (16). Splitting of the sleeve portion (18) permits expansion of the stent (14). The mechanism (20) can include an inflatable, nondistending balloon (22) carried on the catheter (12), the stent (14) and the sleeve portion (18) being positioned over the balloon (22). The stent (14) can be self-expanding or can be expanded by the balloon (22) itself. Alternatively, the mechanism (20) can include a bulbous end (24) on the catheter (12). Longitudinal movement of the bulbous catheter end (24) with respect to the sleeve (16) splits at least the sleeve portion (18), permitting expansion of the stent (14). As further alternatives, the mechanism (20) can include a garrote (66) connected to the sleeve or a partial segment (62) of the sleeve (16) folded back alongside the stent (14). The sleeve (16) can be the same length as the catheter (12) or can be shorter than the catheter (12). In the former case, the mechanism (20) can include a pair of graspable wings (56) for splitting the full length of the sleeve (16). It is preferred that at least the portion (18) of the sleeve (16) extending over the stent (14) includes a longitudinally extending structure 46 for ensuring that the sleeve portion (18) will in fact split upon operation of the mechanism (20).

    摘要翻译: 支架展开装置(10)包括导管(12),定位在导管(12)上的支架(14)和承载在导管(12)上的套筒(16)。 套筒(16)具有完全延伸并且容纳支架(14)的部分(18)。 支架展开装置(10)还包括一个机构(20),用于至少分开延伸在支架(14)上的套筒(16)的部分(18),并且优选地用于分割整个套筒(16)。 套筒部分(18)的分裂允许支架(14)膨胀。 机构(20)可以包括承载在导管(12)上的可膨胀的非重排球囊(22),支架(14)和套筒部分(18)定位在球囊(22)上方。 支架(14)可以是自膨胀的,或者可以由气囊(22)自身扩张。 或者,机构(20)可以包括在导管(12)上的球根端(24)。 球根导管端部(24)相对于套筒(16)的纵向移动至少分开套筒部分(18),从而允许支架(14)的膨胀。 作为另外的替代方案,机构(20)可以包括连接到套筒的衣壳(66)或套管(16)的沿着支架(14)折回的部分段(62)。 套筒(16)可以与导管(12)的长度相同,或者可以比导管(12)短。 在前一种情况下,机构(20)可以包括用于分离套筒(16)的全长的一对可抓握翼(56)。 优选地,延伸在支架(14)上的套筒(16)的至少部分(18)包括纵向延伸的结构46,用于确保套筒部分(18)实际上将在

    Medical device for and a method of endoscopic surgery
    7.
    发明授权
    Medical device for and a method of endoscopic surgery 失效
    内镜手术方法及其手术方法

    公开(公告)号:US5112308A

    公开(公告)日:1992-05-12

    申请号:US592676

    申请日:1990-10-03

    CPC分类号: A61B17/3417 A61M29/00

    摘要: A medical device for endoscopic access of a body cavity and a method of percutaneously placing inner and outer access sheaths of the device into the body cavity. The medical device includes inner and outer access sheaths and a dilator which is inserted into the outer sheath and has a shoulder or a shoulder piece for abutting against the proximal end of the outer sheath. The device also includes a wire guide that is percutaneously inserted into the body cavity via an introducer needle. The dilator and outer sheath are placed over the wire guide to dilate the puncture site and introduce the dilator and outer sheath into the body cavity. The dilator comprises an elongated cylindrical member having a passageway opening distally from the conically-shaped distal end and from an outside lateral wall of the dilator about the proximal end. The dilator also includes an end cap which is utilized to force the dilator and the outer sheath through the puncture site and into the body cavity. After positioning in the body cavity, the dilator and wire guide are removed through the outer sheath. The inner sheath is then inserted through the outer sheath into the body cavity. The proximal ends of both the inner and outer sheaths include seals for maintaining insufflation of the body cavity. The inner sheath includes a shoulder piece having a chamber and a side port for connection to an insufflation gas line.

    Silver implantable medical device
    9.
    发明授权
    Silver implantable medical device 失效
    银植入式医疗器械

    公开(公告)号:US06530951B1

    公开(公告)日:2003-03-11

    申请号:US08956715

    申请日:1997-10-23

    IPC分类号: A61F206

    摘要: A silver implantable medical device 10 includes a structure 12 adapted for introduction into the vascular system, esophagus, trachea, colon, biliary tract, or urinary tract; at least one layer 18 of a bioactive material posited on one surface of structure 12; and at least one porous layer 20 posited over the bioactive material layer 18 posited on one surface of structure 12 and the bioactive-material-free surface. Also included is a layer or impregnation of silver 45. Preferably, the structure 12 is a coronary stent. The porous layer 20 is comprised of a polymer applied preferably by vapor or plasma deposition and provides a controlled release of the bioactive material. It is particularly preferred that the polymer is a polyamide, parylene or a parylene derivative, which is deposited without solvents, heat or catalysts, merely by condensation of a monomer vapor. Silver is included as a base material, coating or included in a carrier, drug, medicament material utilized with the implantable stent.

    摘要翻译: 银可植入医疗装置10包括适于引入血管系统,食道,气管,结肠,胆道或尿道的结构12; 至少一层生物活性材料层18位于结构12的一个表面上; 并且位于结构12的一个表面上的生物活性材料层18上的至少一个多孔层20和不含生物活性材料的表面。 还包括银层45或浸渍。优选地,结构12是冠状动脉支架。 多孔层20由优选通过蒸气或等离子体沉积施加的聚合物组成,并提供生物活性材料的受控释放。 特别优选的是,聚合物是聚酰胺,聚对二甲苯或聚对二甲苯衍生物,其仅通过单体蒸气的冷凝就不经溶剂,热或催化剂沉积。 银包含作为基材,涂层或包含在与可植入支架一起使用的载体,药物,药物材料中。