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公开(公告)号：US20120157771A1
公开(公告)日：2012-06-21
申请号：US13257529
申请日：2010-03-25
申请人： Rafi Avitsian , Andrew M. Zura , Ji-Feng Chen
发明人： Rafi Avitsian , Andrew M. Zura , Ji-Feng Chen
IPC分类号： A61B1/00
CPC分类号： A61B1/00135 , A61B1/00078 , A61B1/00142 , A61B1/012
摘要： A medical device sheath that includes a relatively inelastic body having a proximal end longitudinally separated from a distal end and defining a first lumen, an aperture located at the proximal end in fluid communication with the lumen and configured to admit an elongate endoscope body into the first lumen, and a transparent tip located longitudinally adjacent to an endoscope lens when the elongate endoscope body is located within the first lumen. The endoscope sheath may also include an elongate secondary tube defining a secondary lumen. A method of using the medical device sheath is also described.
摘要翻译： 一种医疗装置护套，其包括相对非弹性的本体，所述主体具有从远端纵向分离并限定第一内腔的近端，所述近端位于所述近端处与所述内腔流体连通并且构造成允许细长内窥镜体进入所述第一腔 并且当细长内窥镜主体位于第一内腔内时，位于与内窥镜镜片纵向相邻的透明尖端。 内窥镜护套还可以包括限定次级内腔的细长次级管。 还描述了使用医疗装置护套的方法。
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公开(公告)号：US08870752B2
公开(公告)日：2014-10-28
申请号：US13257529
申请日：2010-03-25
申请人： Rafi Avitsian , Andrew M. Zura , Ji-Feng Chen
发明人： Rafi Avitsian , Andrew M. Zura , Ji-Feng Chen
CPC分类号： A61B1/00135 , A61B1/00078 , A61B1/00142 , A61B1/012
摘要： A medical device sheath that includes a relatively inelastic body having a proximal end longitudinally separated from a distal end and defining a first lumen, an aperture located at the proximal end in fluid communication with the lumen and configured to admit an elongate endoscope body into the first lumen, and a transparent tip located longitudinally adjacent to an endoscope lens when the elongate endoscope body is located within the first lumen. The endoscope sheath may also include an elongate secondary tube defining a secondary lumen. A method of using the medical device sheath is also described.
摘要翻译： 一种医疗装置护套，其包括相对非弹性的本体，所述主体具有从远端纵向分离并限定第一内腔的近端，所述近端位于所述近端处与所述内腔流体连通并且构造成允许细长内窥镜体进入所述第一腔 并且当细长内窥镜主体位于第一内腔内时，位于与内窥镜镜片纵向相邻的透明尖端。 内窥镜护套还可以包括限定次级内腔的细长次级管。 还描述了使用医疗装置护套的方法。
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公开(公告)号：US20130114256A1
公开(公告)日：2013-05-09
申请号：US13410312
申请日：2012-03-02
申请人： Hsiang-Chi Chung , Ji-Feng Chen , Hung-Lieh Hu , Chen-Kun Chen
发明人： Hsiang-Chi Chung , Ji-Feng Chen , Hung-Lieh Hu , Chen-Kun Chen
CPC分类号： F21V11/14 , F21K9/23 , F21Y2103/10 , F21Y2105/10 , F21Y2107/20 , F21Y2115/10
摘要： An LED light source includes a carrier, a plurality of LED chips and at least one set of lenses. The carrier has a mounting surface and the LED chips are mounted on the mounting surface. The set of lenses disposed on the carrier includes a first lens and a second lens, and the first lens encapsulates one of the LED chips and a lighting pattern provided from the LED chip encapsulated by the first lens is converted into a first lighting pattern. The second lens encapsulates one of the LED chips and a lighting pattern provided from the LED chip encapsulated by the second lens is converted into a second lighting pattern. The second lighting pattern is different from or compensates the first lighting pattern.
摘要翻译： LED光源包括载体，多个LED芯片和至少一组透镜。 载体具有安装表面，并且LED芯片安装在安装表面上。 设置在载体上的透镜组包括第一透镜和第二透镜，并且第一透镜封装一个LED芯片，并且从由第一透镜封装的LED芯片提供的点亮图案被转换为第一照明图案。 第二透镜封装一个LED芯片，并且从由第二透镜封装的LED芯片提供的点亮图案被转换成第二照明图案。 第二种照明模式不同于或补偿了第一种照明模式。
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公开(公告)号：US20100312333A1
公开(公告)日：2010-12-09
申请号：US12769593
申请日：2010-04-28
申请人： Jose Luis Navia , Ji-Feng Chen , Qun Zhou
发明人： Jose Luis Navia , Ji-Feng Chen , Qun Zhou
IPC分类号： A61F2/24
CPC分类号： A61F2/2418 , A61F2/2436 , A61F2220/0008 , A61F2220/005 , A61F2220/0066 , A61F2230/0054 , A61F2230/0078 , A61F2250/006
摘要： An apparatus is provided for replacing a native cardiac valve. The native cardiac valve has at least one leaflet and is surrounded by a native cardiac valve annulus having superior and inferior aspects. The apparatus comprises a barbell-shaped, expandable anchoring member including first, second, and main body portions extending between the end portions. The main body portion includes a channel defined by inner and outer surfaces. Each of the first and second end portions has a diameter greater than the diameter of the main body portion. The first and second end portions are sized to respectively contact the superior and inferior aspects of the native cardiac valve annulus when the expandable anchoring member is in an expanded configuration. The apparatus also includes an expandable support member operably disposed within the main body portion of the expandable anchoring member, and a prosthetic cardiac valve secured within the expandable support member.
摘要翻译： 提供一种用于替换原生心脏瓣膜的装置。 天然心脏瓣膜具有至少一个小叶并被具有上下方面的天然心脏瓣膜环包围。 该装置包括杠铃形的可膨胀锚固构件，其包括在端部之间延伸的第一，第二主体部分和主体部分。 主体部分包括由内表面和外表面限定的通道。 第一和第二端部中的每一个具有大于主体部分的直径的直径。 当可膨胀锚固构件处于膨胀构型时，第一和第二端部的尺寸分别接触天然心脏瓣膜环的上下方面。 该装置还包括可操作地设置在可膨胀锚固构件的主体部分内的可膨胀支撑构件和固定在可扩张支撑构件内的假体心脏瓣膜。
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公开(公告)号：US20080177381A1
公开(公告)日：2008-07-24
申请号：US12016168
申请日：2008-01-17
申请人： Jose Luis Navia , Ji-Feng Chen
发明人： Jose Luis Navia , Ji-Feng Chen
CPC分类号： A61F2/2433 , A61F2/0095 , A61F2/2415 , A61F2/2418 , A61F2/243 , A61F2/2436 , A61F2002/9522 , A61F2220/0008 , A61F2230/0078 , A61F2250/0092 , A61L27/3625 , A61L27/3629 , A61L27/3687 , A61L27/3691 , Y10T29/49925
摘要： A method is provided for implanting a valve having at least one valve leaflet within the cardiovascular system of a subject. One step of the method includes preparing a substantially dehydrated bioprosthetic valve and then providing an expandable support member having oppositely disposed first and second ends and a main body portion extending between the ends. Next, the substantially dehydrated bioprosthetic valve is attached to the expandable support member so that the substantially dehydrated bioprosthetic valve is operably secured within the main body portion of the expandable support member. The expandable support member is then crimped into a compressed configuration and placed at a desired location within the cardiovascular system of the subject. Either before or after placement at the desired location, fluid or blood re-hydrates the substantially dehydrated bioprosthetic valve.
摘要翻译： 提供了一种用于在受试者的心血管系统内植入具有至少一个瓣膜小叶的瓣膜的方法。 该方法的一个步骤包括制备基本脱水的生物假肢瓣膜，然后提供具有相对设置的第一和第二端部的可扩张支撑构件以及在端部之间延伸的主体部分。 接下来，基本上脱水的生物假肢瓣膜连接到可膨胀支撑构件，使得基本脱水的生物假肢瓣膜可操作地固定在可扩张支撑构件的主体部分内。 然后将可膨胀的支撑构件卷曲成压缩构型，并将其放置在受试者的心血管系统内的期望位置。 在放置在所需位置之前或之后，流体或血液重新水合基本上脱水的生物假体瓣膜。
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公开(公告)号：US06290639B1
公开(公告)日：2001-09-18
申请号：US09356120
申请日：1999-07-16
申请人： Tofy Mussivand , Ji-Feng Chen , Kevin Day
发明人： Tofy Mussivand , Ji-Feng Chen , Kevin Day
IPC分类号： A61M112
CPC分类号： A61M1/1037 , A61M1/1008 , A61M1/1098 , A61M1/122 , A61M39/10
摘要： A conduit assembly is provided for attachment to a Mechanical Circulatory Device (MCD) having an orifice surrounded by an orifice rim and a blood bag for forming a blood chamber in the MCD. The blood bag has an open end extends through the orifice. The conduit assembly comprises a tube, a coupling and a washer. The tube is provided for conducting blood between a patient and the orifice of the MCD. The tube has an orifice end. The coupling attaches the orifice end of the tube to the orifice of the MCD with the open end of the blood bag folded over the orifice rim of the MCD. The coupling is movable between a rotatable position wherein the tube is rotatable relative to the MCD, and a locked position wherein the tube is immobile relative to the MCD. The washer is placed between the orifice end of the tube and the blood bag folded over the orifice rim of the MCD. The washer has an inner section which has a shape corresponding to a space between the orifice end of the tube and the blood bag folded over the orifice rim of the MCD so as to smooth the transition between the tube and the blood bag at the orifice of the MCD to reduce turbulence in blood flowing between the tube and the blood bag.
摘要翻译： 提供导管组件用于附接到具有由孔边缘包围的孔口的机械循环装置（MCD）和用于在MCD中形成血液室的血袋。 血袋具有开口端延伸穿过孔口。 导管组件包括管，联接器和垫圈。 该管被设置用于在患者和MCD的孔之间传导血液。 管具有孔端。 联轴器将管的孔端附接到MCD的孔口，血袋的开口端折叠在MCD的孔边缘上。 联接器可在可相对于MCD旋转的可旋转位置和可相对于MCD不动的锁定位置之间移动。 垫圈放置在管孔的孔口和折叠在MCD的孔边缘上的血袋之间。 该垫圈具有内部部分，该内部部分具有对应于管的孔口端部与折叠在MCD的孔口边缘之间的血袋之间的空间的形状，以便在管和血袋的孔口处平滑过渡 MCD可以减少管和血袋之间流动的血液紊乱。
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公开(公告)号：US20120323175A1
公开(公告)日：2012-12-20
申请号：US13487395
申请日：2012-06-04
IPC分类号： A61M25/14 , A61M25/092
CPC分类号： A61M25/0102 , A61M25/003 , A61M25/0054 , A61M25/0082 , A61M25/1002 , A61M2025/0024 , A61M2025/0039 , A61M2025/0057 , A61M2025/0096 , A61M2025/0175 , A61M2025/105 , A61M2025/1086 , A61M2025/1093 , A61M2210/0693
摘要： A catheter assembly comprises a first catheter including a wall with an inner surface at least partially defining a lumen. A second catheter is connected to the wall of the first catheter and is disposed outward of the inner surface of the wall. The second catheter is at least partially covered by a sheath portion of the first catheter. A first portion of the wall of the first catheter is made of a relatively low durometer elastomeric material and is relatively extensible. A second portion of the wall is formed of a relatively high durometer elastomeric material and is relatively inextensible.
摘要翻译： 导管组件包括第一导管，其包括具有至少部分限定内腔的内表面的壁。 第二导管连接到第一导管的壁并设置在壁的内表面的外侧。 第二导管至少部分被第一导管的鞘部覆盖。 第一导管的壁的第一部分由较低硬度的弹性体材料制成并且是相对可延伸的。 壁的第二部分由相对高的硬度弹性体材料形成并且是相对不可延展的。
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公开(公告)号：US08105375B2
公开(公告)日：2012-01-31
申请号：US12016168
申请日：2008-01-17
申请人： Jose Luis Navia , Ji-Feng Chen
发明人： Jose Luis Navia , Ji-Feng Chen
IPC分类号： A61F2/24
CPC分类号： A61F2/2433 , A61F2/0095 , A61F2/2415 , A61F2/2418 , A61F2/243 , A61F2/2436 , A61F2002/9522 , A61F2220/0008 , A61F2230/0078 , A61F2250/0092 , A61L27/3625 , A61L27/3629 , A61L27/3687 , A61L27/3691 , Y10T29/49925
摘要： A method is provided for implanting a valve having at least one valve leaflet within the cardiovascular system of a subject. One step of the method includes preparing a substantially dehydrated bioprosthetic valve and then providing an expandable support member having oppositely disposed first and second ends and a main body portion extending between the ends. Next, the substantially dehydrated bioprosthetic valve is attached to the expandable support member so that the substantially dehydrated bioprosthetic valve is operably secured within the main body portion of the expandable support member. The expandable support member is then crimped into a compressed configuration and placed at a desired location within the cardiovascular system of the subject. Either before or after placement at the desired location, fluid or blood re-hydrates the substantially dehydrated bioprosthetic valve.
摘要翻译： 提供了一种用于在受试者的心血管系统内植入具有至少一个瓣膜小叶的瓣膜的方法。 该方法的一个步骤包括制备基本脱水的生物假肢瓣膜，然后提供具有相对设置的第一和第二端部的可扩张支撑构件以及在端部之间延伸的主体部分。 接下来，基本上脱水的生物假肢瓣膜连接到可膨胀支撑构件，使得基本脱水的生物假肢瓣膜可操作地固定在可扩张支撑构件的主体部分内。 然后将可膨胀的支撑构件卷曲成压缩构型，并将其放置在受试者的心血管系统内的期望位置。 在放置在所需位置之前或之后，流体或血液重新水合基本上脱水的生物假体瓣膜。
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公开(公告)号：US20110153009A1
公开(公告)日：2011-06-23
申请号：US13040394
申请日：2011-03-04
申请人： Jose Luis Navia , Ji-Feng Chen
发明人： Jose Luis Navia , Ji-Feng Chen
IPC分类号： A61F2/24
CPC分类号： A61F2/2445 , A61F2/2466 , A61F2/91
摘要： An apparatus for repairing a cardiac valve includes an annuloplasty ring having an expandable support member with oppositely disposed proximal and distal end portions and a main body portion between the end portions. The proximal end portion includes a plurality of wing members extending from the main body portion. Each of the wing members includes at least one hook member for embedding into a cardiac wall and a valve annulus to secure the annuloplasty ring therein. The apparatus also includes an energy delivery mechanism for selectively contracting the annuloplasty ring to restrict the valve annulus and correct valvular insufficiency. The energy delivery mechanism includes a detachable electrical lead having distal and proximal end portions. The distal end portion has a securing member for operably attaching the distal end portion to a portion of the expandable support member. The proximal end portion is operably connected to an energy delivery source.
摘要翻译： 用于修复心脏瓣膜的装置包括瓣膜成形术环，其具有可扩张的支撑构件，其具有相对设置的近端部分和远端部分以及端部之间的主体部分。 近端部包括从主体部延伸的多个翼部件。 每个翼构件包括至少一个用于嵌入心壁的钩构件和瓣环，以将瓣环成形术环固定在其中。 该装置还包括能量递送机构，用于选择性地收缩瓣环成形术环以限制瓣膜环和矫正瓣膜功能不全。 能量输送机构包括具有远端和近端部分的可拆卸电引线。 远端部分具有用于将远端部分可操作地附接到可扩张支撑构件的一部分的固定构件。 近端部分可操作地连接到能量输送源。
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公开(公告)号：US06186999B1
公开(公告)日：2001-02-13
申请号：US09141225
申请日：1998-08-27
申请人： Ji-Feng Chen
发明人： Ji-Feng Chen
IPC分类号： A61M2500
CPC分类号： A61M25/0662 , A61B17/3462 , A61M1/1008 , A61M1/12 , A61M1/122 , A61M1/367 , A61M25/0045
摘要： A clampable conduit comprising a generally rigid layer having a first end and a generally flexible tube generally coaxial with the rigid layer. The flexible tube extends axially in a first direction beyond the first end. The conduit also has a generally rigid sleeve moveable between a cover position, wherein the sleeve covers a first part of the flexible tube, and an uncovered position, wherein the sleeve does not cover the first part of a flexible tube to enable clamping of the conduit.
摘要翻译： 一种可夹紧导管，其包括大致刚性的层，其具有第一端和大体上与刚性层同轴的柔性管。 柔性管在第一方向上轴向延伸超过第一端。 导管还具有可在盖位置之间移动的大体上刚性的套筒，其中套筒覆盖柔性管的第一部分和未覆盖位置，其中套管不覆盖柔性管的第一部分以能够夹紧导管 。
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