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    • 2. 发明申请
    • Trocars with advanced fixation
    • Trocars与先进的固定
    • US20070106319A1
    • 2007-05-10
    • US11270181
    • 2005-11-09
    • Gigi AuJeremy AlbrechtCharles HartGary JohnsonJohn Brustad
    • Gigi AuJeremy AlbrechtCharles HartGary JohnsonJohn Brustad
    • A61M29/00A61M5/178
    • A61B17/34A61B17/3421A61B2017/3484A61B2017/349
    • A trocar fixation device includes a cannula and an elongate tube mounted onto and coupled to the exterior surface of the cannula with the distal end of the cannula extending distally beyond the distal end of the elongate tube. The elongate tube includes a plurality of slits cut at an angle to a longitudinal axis of the elongate tube. The trocar fixation device is activated by rotating the proximal-end region of the elongate tube in a first direction and is deactivated by rotating the proximal-end region of the elongate tube in a second direction, opposite to the first direction. Activation of the trocar fixation device compresses the material positioned between adjacent slits and forces the material radially outwardly, away from the exterior surface of the cannula, thereby forming ridges. Deactivation of the trocar fixation device returns the exterior surface of the elongate tube to a substantially smooth condition.
    • 套管针固定装置包括插管和安装到套管的外表面上并连接到套管的外表面的细长管,套管的远端向远侧延伸超过细长管的远端。 细长管包括与细长管的纵向轴线成一定角度切割的多个切口。 套管针固定装置通过沿着第一方向旋转细长管的近端区域而被激活,并且通过沿与第一方向相反的第二方向旋转细长管的近端区域来停用。 套针针固定装置的激活压缩位于相邻狭缝之间的材料,并迫使材料径向向外,远离插管的外表面,从而形成脊。 套针针固定装置的停用将细长管的外表面返回到基本平滑的状态。
    • 5. 发明申请
    • DUCK BILL SEPTUM COMBINATION
    • DUCK BILL SEPTUM组合
    • US20070244426A1
    • 2007-10-18
    • US11279600
    • 2006-04-13
    • Charles HartJohn BrustadJeremy Albrecht
    • Charles HartJohn BrustadJeremy Albrecht
    • A61M1/00
    • A61M39/24A61B17/3462A61M2039/242A61M2039/2426
    • A duckbill check valve and septum combination includes a hollow elastomeric body having an open proximal end, a closed distal end and a pair of opposed flat portions that form a distal edge. The distal edge includes a slit having a periphery that is smaller than the periphery of the instrument inserted therethrough. The slit provides a zero seal in the absence of an instrument and an instrument seal in the presence of an instrument. A shield including a tubular member and a plurality of blades protruding distally from the distal end of the tubular member may be placed inside the check valve and operates to center and guide the surgical instrument through the blades before expanding the slit of the check valve. An instrument inserted into the check valve stretches the distal portion of the duckbill valve to form a septum-like seal around the inserted instrument.
    • 鸭嘴止回阀和隔膜组合包括中空弹性体,其具有敞开的近端,闭合的远端和形成远端边缘的一对相对的平坦部分。 远侧边缘包括具有小于插入其中的器械的周边的周边的狭缝。 在仪器存在的情况下,狭缝提供零密封。 包括管状构件和从管状构件的远端向远侧突出的多个叶片的护罩可以放置在止回阀的内部,并且在扩大止回阀的狭缝之前操作以使外科器械穿过叶片居中并引导。 插入止回阀中的仪器延伸鸭嘴阀的远端部分,以在插入的仪器周围形成隔垫状的密封。
    • 7. 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。
    • 8. 发明申请
    • Self-sealing cannula having integrated seals
    • 具有集成密封件的自密封插管
    • US20050216028A1
    • 2005-09-29
    • US10807974
    • 2004-03-24
    • Charles HartJohn Brustad
    • Charles HartJohn Brustad
    • A61B17/28A61B17/34A61F11/00
    • A61B17/3462A61B17/3417A61B17/3439A61B17/3498A61B2017/2905A61B2017/3441
    • The present invention relates to a surgical access device comprising an elongate tubular member having a working channel and an axis extending between a proximal end and a distal end, a septum seal integrally formed at the distal end of the tubular member, and a zero seal disposed at the distal end of the tubular member and distal to the septum seal, the zero seal being sized and configured to seal when no instrument is in place within the working channel of the tubular member, and the zero seal being coupled to the septum seal and having properties to float with the septum seal relative to the tubular member. The tubular member may be formed from an elastomeric material. The tubular member has a wall that may be rigid or semi-rigid, and the tubular member may be reinforced with a coil along a portion of the tubular member. The tubular member may include a distal, mechanically deployable shielding portion. The zero seal may be a duckbill seal constructed with one or more intersecting sealing portions. The duckbill seal may comprise of opposing lip portions separated by a slit portion. The opposing lip portions are coated with or attached to a soft or occlusive material. The occlusive material is one of Kraton, polyurethane or the like. The occlusive lip portions allow a surgical item such as a suture to extend through the slit portion without disrupting the seal. In one aspect, the tubular member and the septum seal are molded together as a single unit and the zero seal is then bonded or fused to the septum seal. In another aspect, the tubular member, the septum seal and the zero seal are all molded together or integrally formed as a single unit. The tubular member may further comprise flexibility enhancing features to allow the tubular member to flex in response to a motion of a surgical instrument within the working channel of the tubular member.
    • 本发明涉及一种外科进入装置,其包括细长管状构件,该细长管状构件具有工作通道和在近端和远端之间延伸的轴线,一体地形成在管状构件的远端处的隔膜密封件以及零密封件 在管状构件的远端处并且远离隔膜密封件,零密封件的尺寸和构造被设计成在管状构件的工作通道内没有仪器就位时密封,并且零密封件联接到隔膜密封件 具有相对于管状构件以隔垫密封件浮动的性质。 管状构件可以由弹性体材料形成。 管状构件具有可以是刚性或半刚性的壁,并且管状构件可以沿着管状构件的一部分用线圈加强。 管状构件可以包括远侧机械展开的屏蔽部分。 零密封可以是由一个或多个相交的密封部分构成的鸭嘴形密封件。 鸭嘴形密封件可以包括由狭缝部分分开的相对的唇部。 相对的唇部被涂覆或附着到柔软或闭塞的材料上。 封闭材料是Kraton,聚氨酯等之一。 闭合唇部允许诸如缝合线的手术物品延伸穿过狭缝部分而不破坏密封。 在一个方面,管状构件和隔膜密封件作为单个单元一起模制,然后将零密封件粘合或熔合到隔膜密封件。 在另一方面,管状构件,隔膜密封件和零密封件全部模制在一起或整体地形成为单个单元。 管状构件还可以包括柔性增强特征,以允许管状构件响应于外科器械在管状构件的工作通道内的运动而弯曲。
    • 9. 发明申请
    • Surgical access port and method of using same
    • US20050209619A1
    • 2005-09-22
    • US10805864
    • 2004-03-22
    • Gary JohnsonJohn BrustadCharles Hart
    • Gary JohnsonJohn BrustadCharles Hart
    • A61B17/00A61B17/34A61B17/32
    • A61B17/3417A61B17/34A61B2017/00473A61B2017/3482A61B2017/3484A61M39/02
    • The present invention relates to a surgical access port for insertion into a body cavity having an elongate tubular body extending along an axis between a proximal end and a distal end, and a tip disposed at the distal end of the tubular body for penetrating through a body wall and into the body cavity. The distal tip operates to move from a first, penetrating position to a second, retaining position when the body wall has been traversed. The surgical access port may further comprise a seal housing operably connected to the proximal end of the tubular body, the seal housing having an access port providing an opening into the tubular body to allow passage of surgical instruments. The distal tip may be sharp, pointed or bladed. The distal tip may also be substantially blunt or have a conical surface. The access port may further comprise a retention member for connecting the tubular body and the distal tip. The retention member may be biased to hold the distal tip in an off-axis position when there is no axial load, or it may be lightly held in axial alignment and subsequently deflected in the presence of an instrument within the tubular body. The distal tip, which may comprise one or more parts or petals, may reposition to the side of the tubular body in a substantially right-angled condition in the second, retaining position. The repositioned tip remains in an off-axis condition until removal of the access port, at which time the distal tip automatically realigns with the axis of the tubular body as the access port is withdrawn from the body wall. The tubular body may be a thin walled tube. The distal tip may comprise a conical, tapered or rounded shape to separate tissue layers. The distal tip may be solid or hollow, which may act as a specimen bag by closing on a specimen and pulled inside the tip during removal of the access port. The distal tip may be formed from a clear material to allow viewing through an endoscope during placement of the surgical access port.
    • 10. 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。