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    • 3. 发明申请
    • Seal housing having anti-inversion features
    • US20060264991A1
    • 2006-11-23
    • US11119189
    • 2005-04-29
    • Gary JohnsonJeremy AlbrechtNabil HilalCharles Hart
    • Gary JohnsonJeremy AlbrechtNabil HilalCharles Hart
    • A61B17/32
    • A61B17/3498A61B17/34A61B17/3417A61B17/3462A61B2017/3464A61M39/06A61M2039/0626A61M2039/0633A61M2039/0646A61M2039/0653
    • The invention is directed to a trocar adapted to form a seal around a surgical instrument, the trocar comprising a cannula having an axis extending between a proximal end and a distal end; a housing having a proximal wall and forming with the cannula a working channel sized and configured to receive the instrument; a septum seal disposed in the housing and extending transverse to the axis of the cannula across the working channel, the septum seal having a normal state when the instrument is absent from the working channel and a stretched state when the instrument is being withdrawn from the working channel; portions of the proximal wall of the housing defining an orifice sized and configured to receive the instrument into the working channel; and an elastomeric ring-shaped projection extending axially distally between the proximal wall and the septum seal, the ring-shaped projection having an axial length adapted to deform to prevent inversion and binding of the septum seal and the orifice upon withdrawal of the surgical instrument. In particular, the septum seal is prevented from reaching the orifice in the proximal wall of the housing when the instrument is withdrawn. The projection may be bonded, insert-molded, or compressively fitted to the proximal wall of the housing. The projection may be formed of an elastomeric material such as natural or synthetic rubber. The projection may further comprise a plurality of portions or fingers extending axially distally from the proximal wall, each of the extending portions or fingers may further include a living hinge. In another aspect, the ring-shaped projection may be formed on the surface of the septum seal instead of the proximal wall of the housing. That is, the ring-shaped projection may be formed to extend axially proximally from the surface of the septum seal toward the proximal wall of the housing.
    • 5. 发明申请
    • Surgical guide valve
    • 手术导阀
    • US20050203543A1
    • 2005-09-15
    • US10802125
    • 2004-03-15
    • Nabil HilalCharles Hart
    • Nabil HilalCharles Hart
    • A61M39/06A61F11/00
    • A61M39/0693
    • A surgical access valve is adapted to introduce an instrument into a body cavity or conduit. The valve includes a valve housing and a seal material disposed in the housing. Portions of the seal material define an instrument channel that is normally closed to inhibit fluid communication through the seal material. A dilator is moveable distally to open at least a portion of the instrument channel thereby facilitating passage of the instrument through the seal material, and is also moveable proximally to facilitate formation of a seal around the instrument. The dilator can be biased to a distal position and detented in a proximal position to facilitate one single-handed operation of the valve.
    • 外科进入阀适于将器械引入体腔或导管中。 阀包括阀壳体和设置在壳体中的密封材料。 密封材料的一部分限定了通常关闭以阻止通过密封材料的流体连通的仪器通道。 扩张器可向远侧移动以打开仪器通道的至少一部分,从而便于仪器通过密封材料,并且还可向近侧移动以便于围绕仪器形成密封。 扩张器可以被偏压到远侧位置并且在近侧位置被锁定以便于单向操作阀。
    • 9. 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。
    • 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。