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    • 2. 发明申请
    • Kink-resistant access sheath and method of making same
    • 抗折接线护套及其制作方法
    • US20060144501A1
    • 2006-07-06
    • US11319870
    • 2005-12-28
    • John BrustadPayam AdlparvarWassim AliahmadCanh TranNabil HilalBoun PravongRaffi PinedjianCharles Hart
    • John BrustadPayam AdlparvarWassim AliahmadCanh TranNabil HilalBoun PravongRaffi PinedjianCharles Hart
    • B65H81/00
    • A61M25/0012A61B17/3415A61B2017/00526A61M25/0045A61M25/005A61M25/0662B29C47/0023B29C47/004B29C47/0064B29C47/025B29C47/027B29C53/60B29C61/006B29L2023/00
    • A releasable mechanism such as a cap is adapted for use with an access sheath having an elongate tube and a handle structure disposed at a proximal end of the tube. The releasable mechanism is sized and configured to fit the handle structure, which is shaped like the bell of a horn, to further facilitate use with surgical instrumentation. The releasable mechanism may operate as a separate cap that snaps onto the handle structure to provide access pathways to the sheath. The releasable mechanism may also be disposed at a proximal end of a surgical instrument to be introduced into the access sheath such that it may be interlocked with the sheath. In a method of manufacturing a kink-resistant sheath, a wire is initially coated with a plastic material, the coated wire is then wrapped around a mandrel forming a plurality of windings, and the wound coated wire is heated until the plastic material melts and bonds the windings to form a wire-reinforced sheath. The plastic material is preferably polyurethane but may be a thermoplastic, a thermoset or any plastic material having hard and/or soft durometer. The wound coated wire may be heated by capturing the windings within a shrink tube or compressing the windings in a mold and heating the windings until the sheath is formed. In another aspect of the invention, a mandrel is used as part of an extrusion process. In another aspect of the invention, another coating or outside layer could be formed over the spring reinforcement by dipping in a solvent based solution. In yet another embodiment of the invention, a braid such as a polyester braid may be used instead of or in addition to the coil spring to form a kink-resistant sheath.
    • 诸如盖的可释放机构适于与具有设置在管的近端处的细长管和手柄结构的进入护套一起使用。 所述可释放机构的尺寸和构造适合于将手柄结构(其形状像喇叭的钟形)配合,以进一步便于手术器械的使用。 可释放机构可以作为单独的盖子操作,该盖子卡扣在手柄结构上以提供到护套的通路。 可释放机构还可以设置在外科器械的近端处以被引入入口护套中,使得其可以与护套互锁。 在制造耐扭结护套的方法中,最初用塑料材料涂覆线,然后将涂覆的线缠绕在形成多个绕组的心轴上,并且加热伤口涂覆的线,直到塑料材料熔化并结合 绕组形成电线增强护套。 塑料材料优选为聚氨酯,但可以是热塑性塑料,热固性材料或具有硬和/或软硬度的任何塑料材料。 可以通过将收缩管内的绕组捕获或压缩模具中的绕组并加热绕组直到形成护套来加热伤口涂覆的线。 在本发明的另一方面,使用心轴作为挤出工艺的一部分。 在本发明的另一方面,可以通过浸渍在基于溶剂的溶液中在弹簧加强件上形成另一涂层或外层。 在本发明的另一个实施例中,可以使用诸如聚酯编织物的编织物代替螺旋弹簧或除了螺旋弹簧以外以形成扭结护套。
    • 3. 发明申请
    • Medical tubing having variable characteristics and method of making same
    • 具有可变特性的医用管及其制造方法
    • US20050165366A1
    • 2005-07-28
    • US10766138
    • 2004-01-28
    • John BrustadSaid HilalNabil HilalCharles HartGary JohnsonSerene HilalGhassan SakakineDonald GadberryEdward PingletonMatthew PetrimePayam AdlparvarCarl HadleyKenneth Vu
    • John BrustadSaid HilalNabil HilalCharles HartGary JohnsonSerene HilalGhassan SakakineDonald GadberryEdward PingletonMatthew PetrimePayam AdlparvarCarl HadleyKenneth Vu
    • A61B17/00A61B17/34A61M25/00A61M5/00
    • A61M25/0012A61B1/0011A61B1/0055A61B17/3421A61B2017/003A61M25/0043
    • The invention primarily is directed to a medical tubing adapted for insertion into a body tissue or cavity and method of manufacturing different variations of the tubing along a length of the tubing. The tubing comprises a plurality of individual, discrete, generally ring-shaped elements arranged in series and fused or bonded together forming a continuous tubular structure. The ring-shaped elements may be formed of a thermoplastic or a thermoset material. The ring-shaped elements may include plastic rings, metallic rings, un-reinforced plastic rings and/or metal reinforced plastic rings assembled along the length of the tubular structure to provide variable flexibility and kink-resistance. The tubular structure may have a cross-section of any geometric shape and it may be bent, twisted or curved without kinking. The ring-shaped elements may have different flexural modulus. The ring-shaped elements may include a combination of flexible and rigid ring-shaped elements assembled along different portions or sections of the tubular structure. The ring-shaped elements may be metallic and may be bonded with a resilient, flexible elastomeric adhesive, wherein the ring-shaped elements may have different lengths and may be fused closer or further apart to one another depending on the characteristics of a portion or section of the tubing. In another aspect of the invention, the medical tubing may further comprise a secondary lumen and a pull wire to control the tubular structure. The ring-shaped elements may be truncated to provide a bending bias. In another aspect of the invention, the ring-shaped elements may vary in diameter and/or composition in different portions or sections of the tubular structure. In yet another aspect of the invention, some of the ring-shaped elements may be radiopaque, or the ring-shaped elements may comprise of different colors to operate as indicators along the tubular structure.
    • 本发明主要针对适于插入身体组织或空腔的医用管道以及沿管道长度制造管道的不同变化的方法。 管道包括多个单独的离散的大体环形元件,其串联布置并且熔合或粘合在一起形成连续的管状结构。 环形元件可以由热塑性材料或热固性材料形成。 环形元件可以包括沿着管状结构的长度组装的塑料环,金属环,未增强塑料环和/或金属增强塑料环,以提供可变的柔性和抗扭结性。 管状结构可以具有任何几何形状的横截面,并且其可以弯曲,扭曲或弯曲而没有扭结。 环形元件可以具有不同的弯曲模量。 环形元件可以包括沿着管状结构的不同部分或部分组装的柔性和刚性环形元件的组合。 环形元件可以是金属的并且可以用弹性的柔性弹性体粘合剂粘合,其中环形元件可以具有不同的长度,并且可以根据部分或部分的特性彼此靠近或更远地彼此熔合 的管道。 在本发明的另一方面,医疗管道还可包括用于控制管状结构的次管腔和拉线。 环形元件可以被截断以提供弯曲偏压。 在本发明的另一方面,环形元件可以在管状结构的不同部分或部分中的直径和/或组成变化。 在本发明的另一方面,一些环形元件可以是不透射线的,或者环形元件可以包括不同颜色以作为沿着管状结构的指示器。
    • 4. 发明申请
    • WOUND RETRACTION APPARATUS AND METHOD
    • 回绕装置和方法
    • US20070225569A1
    • 2007-09-27
    • US11755305
    • 2007-05-30
    • Richard EwersJohn BrustadEdward PingletonNabil HilalPayam AdlparvarScott TaylorGary DulakMichael DunnNorman MoralesCharles HartRobert Bowes
    • Richard EwersJohn BrustadEdward PingletonNabil HilalPayam AdlparvarScott TaylorGary DulakMichael DunnNorman MoralesCharles HartRobert Bowes
    • A61B1/32
    • A61B1/32A61B17/0293A61B17/3423A61B17/3431A61B2017/3484
    • A surgical wound retractor is adapted to dilate a wound stretchable to a desired diameter, the retractor includes a first ring having a diameter greater than that desired for the wound and being adapted for disposition interiorly of the wound. A second ring has a diameter greater than that desired for the wound and is adapted for disposition exteriorly of the wound. A plurality of retraction elements are disposed in a generally cylindrical relationship to each other, between the first ring and the second ring. These elements extend through the wound to exert a radial retraction force on the wound which is dependent on the distance separating the first ring and the second ring Retraction elements, both distensible and non-distensible are contemplated with appropriate attachment means at the rings to provide for variations in the retraction force. With a suitable retraction sleeve, a third ring can be provided to form a circumferential retainer to vary the retraction force. Rings can also be made inflatable or self-expanding to vary the retraction force An associated method includes the step of rolling the second ring circumferentially of the third ring to form the circumferential retainer.
    • 外科伤口牵开器适于将可拉伸至期望直径的伤口扩张,牵开器包括直径大于伤口所需直径的第一环,并适于在伤口内部配置。 第二环的直径大于伤口所需的直径,并且适于在伤口的外部配置。 多个退回元件在第一环和第二环之间以大致圆柱形的关系设置。 这些元件延伸穿过伤口以在伤口上施加径向缩回力,这取决于分离第一环和第二环的距离,缩回元件是可伸长的和不可扩张的,在环处有合适的附接装置,以提供 收缩力的变化。 利用合适的缩回套筒,可以提供第三环以形成圆周保持器以改变收回力。 环也可以制成充气或自膨胀以改变收缩力。相关联的方法包括在第三环周向滚动第二环以形成圆周保持器的步骤。
    • 7. 发明申请
    • Surgical access apparatus and method
    • 手术进入装置及方法
    • US20060030755A1
    • 2006-02-09
    • US11244647
    • 2005-10-05
    • Richard EwersJohn BrustadEdward PingletonNabil HilalGary DulakPayam AdlparvarRobert Bowes
    • Richard EwersJohn BrustadEdward PingletonNabil HilalGary DulakPayam AdlparvarRobert Bowes
    • A61B1/32
    • A61B17/3423A61B17/0218A61B17/0293A61B17/3474A61B17/3498A61B2017/00265A61B2017/00526A61B2017/3419A61B2017/3445A61B2017/3492A61M13/003
    • A surgical access device includes a single valve that forms a seal with the body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal with instruments having a full range of instrument diameter. The valve can include a gel and preferably an ultragel comprised of an elastomer and an oil providing elongation greater than 1000 percent and durometer less than 5 Shore A. The single valve can be used as a hand port where the instrument comprises the arm of a surgeon, thereby providing hand access into the cavity. A method for making the surgical access device includes the combining of a gelling agent with an oil, preferably in a molding process. A method for using the device includes steps for creating an opening with the instrument. In a particular process, an organ can be removed from the body cavity through the single valve to create an organ seal while the organ is addressed externally of the body cavity. The valve and method are particularly adapted for laparoscopic surgery wherein the abdominal cavity is insufflated with a gas thereby requiring the zero seal, the instrument seal, and the organ seal in various procedures.
    • 外科进入装置包括与主体壁形成密封并且将进入通道提供到体腔中的单个阀。 该阀具有在没有仪器的情况下产生零密封的特性,以及具有仪器直径范围的仪器的仪器密封。 该阀可以包括凝胶,优选地包括由弹性体和提供大于1000%的伸长率和小于5肖氏A的硬度的油的超细颗粒。单个阀可用作手动口,其中仪器包括外科医生的手臂 ,从而提供手进入空腔。 用于制造外科进入装置的方法包括胶凝剂与油的组合,优选在模制过程中。 一种使用该装置的方法包括用该仪器产生开口的步骤。 在特定的过程中,器官可以通过单个阀从体腔中移除,以在器官在体腔外部寻址时产生器官密封。 该阀和方法特别适用于腹腔镜手术,其中腹腔用气体吹入,因此需要零密封,器械密封和器官密封。