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1. 发明授权

US4861331A Implantable shunt system and method of assembly 失效
标题翻译：可植入分流系统及组装方法
公开(公告)号：US4861331A
公开(公告)日：1989-08-29
申请号：US184749
申请日：1988-04-22
申请人： Gary P. East , Stephen W. Laguette , Alfons Heindl , Leanne M. Lintula
发明人： Gary P. East , Stephen W. Laguette , Alfons Heindl , Leanne M. Lintula
IPC分类号： A61M25/00 , A61M1/00 , A61M27/00 , F16K15/14
CPC分类号： A61M27/006 , F16K15/148 , Y10T137/789
摘要： A surgically implantable shunt system, including a flow control valve and an antechamber, is provided for controlling the release of entrapped body fluids. The flow control valve includes a pair of molded plastic bases situated, respectively, adjacent to an inlet and an outlet of the valve, which bases are situated within a flexible encasement. Each base includes an outer housing, a valve membrane carrier positioned within the housing, and a flow control member. The flow control members each include a rigid nail-like central support and a separate flexible resilient membrane positioned on the central support. A first flow control member is capable of selectively occluding the valve inlet, but is normally spaced from its base to permit free fluid flow through the inlet. The second flow control member is generally arch-shaped and resiliently biased to contact its respective base generally along the outer edge of the membrane in a manner permitting only controlled one-way flow through the valve. The antechamber permits injection of medication into the shunt between a proximal catheter and the distal flow control valve, and pumping of the medication in either direction. Additionally, a method for assembling the shunt system in a quick and economical manner is provided, which utilizes tapered grommets to anchor components in place prior to adhesively securing tubing to the flexible encasement.

2. 发明授权

US4995856A Ventriculostomy reservoir 失效
标题翻译：脑室造影术
公开(公告)号：US4995856A
公开(公告)日：1991-02-26
申请号：US365906
申请日：1989-06-14
申请人： Alfons Heindl , Stephen W. Laguette , Leanne M. Lintula
发明人： Alfons Heindl , Stephen W. Laguette , Leanne M. Lintula
IPC分类号： A61M37/00 , A61M1/00 , A61M27/00
CPC分类号： A61M27/006
摘要： A ventriculostomy reservoir includes a rigid base and an elastomeric cap which is positioned over the base to enclose a reservoir well. A rigid cap insert is captured by the lower portion of the cap and is positioned for engagement with the base. The cap insert and the base are configured so that the cap may be snap-fit onto the base in a manner forming a fluid-tight seal therebetween. In one form of the invention, the cap insert includes a cylindrical portion which extends downwardly from a flange-like portion captured within the cap, to fit within an upwardly extending wall portion of the base. The cylindrical portion includes an encircling protrusion on an exterior surface thereof which engages and fits within an encircling detent provided on the interior surface of the wall portion to snap-fit the cap to the base. In a second embodiment of the invention the cap insert exteriorly surrounds an upper end of the base, and a similar protrusion and detent arrangement is utilized to snap-fit the cap to the base. In a third embodiment of the invention the cap insert overlies an upper end of the base and is secured to the base through an interference fit both on interior and exterior surfaces of the wall portion of the base.

3. 发明授权

US08622978B2 Tool for adjusting an implantable adjustable fluid flow control valve 有权
标题翻译：用于调整植入式可调节流体流量控制阀的工具
公开(公告)号：US08622978B2
公开(公告)日：2014-01-07
申请号：US09745108
申请日：2000-12-20
申请人： William J. Bertrand , Leanne M. Lintula , Leonard Porche
发明人： William J. Bertrand , Leanne M. Lintula , Leonard Porche
IPC分类号： A61M5/00
CPC分类号： A61M27/006 , A61B34/70 , A61B90/06 , A61M5/42 , A61M2039/0238 , A61M2205/3515 , A61M2209/02 , A61M2209/04
摘要： Tools for determining and adjusting the setting of an adjustable valve are disclosed. These tools allow a medical professional to locate and non-invasively determine the setting of an implanted valve. After the valve has been located and the setting of the valve determined, the valve may be re-adjusted non-invasively. There are three tools: a locator tool, an indicator tool and an adjustment tool. The locator tool allows the physician to locate the adjustable valve of interest and align the locator tool with a specific orientation of the valve. The indicator tool indicates the current setting of the adjustable valve and confirms new settings of the valve after the new settings have been implemented. The adjustment tool interacts magnetically with the implanted adjustable valve to couple with a movable internal element to change the setting of the valve. The indicator tool and the adjustment tool physically cooperate with the locator tool to accomplish the respective functions of the tools.
摘要翻译：公开了用于确定和调节可调节阀的设置的工具。这些工具允许医疗专业人员定位和非侵入性地确定植入瓣膜的设置。在阀被定位并确定阀的设定之后，可以非侵入性地重新调节阀。有三种工具：定位器工具，指示器工具和调整工具。定位器工具允许医师定位感兴趣的可调节阀，并使定位器工具与阀的特定取向对齐。指示器工具指示可调节阀的当前设置，并在新设置完成后确认阀的新设置。调节工具与植入的可调节阀磁性相互作用以与可移动的内部元件耦合以改变阀的设定。指示器工具和调整工具与定位器工具物理协作，以完成工具的各自功能。

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