Aortic root cannula
    1.
    再颁专利
    Aortic root cannula 失效
    主动脉根管插管

    公开(公告)号:USRE35459E

    公开(公告)日:1997-02-18

    申请号:US315146

    申请日:1994-09-29

    CPC classification number: A61M25/0606

    Abstract: A cannula assembly including a tube cannula and a hollow introducer needle. At the proximal end of the cannula are three fittings: first, a first luer fitting affixed to the proximal end of the tube cannula; second, a luer fitting removably attached to the first luer fitting, this second luer fitting having a first air porous water locking plug at a proximal end penetrated by the needle; and, third, a needle handle removably attachable to the second luer fitting. The proximal end of the needle handle is blocked also by a second air porous water blocking plug. The second plug prevents escape of blood from the hollow needle upon penetration of the arterial wall. The first plug controls the rate of flow of blood to the cannula tube and allows clamping of the tube after withdrawal of the introducer needle and prior to connection to a cardioplegia supply line.

    Abstract translation: 套管组件,其包括管插管和中空导引针。 在套管的近端处有三个配件:首先,固定到管插管的近端的第一鲁尔配件; 第二,可拆卸地连接到第一鲁尔接头的鲁尔接头,该第二鲁尔接头具有在由针刺入的近端的第一空气多孔水锁塞; 以及第三,可移除地附接到第二鲁尔接头的针柄。 针柄的近端也被第二空气多孔水堵塞塞住。 第二插头防止在穿过动脉壁时血液从空心针头逃逸。 第一个插头控制血液流向插管管的速度,并允许在取出导引针后以及在连接到心麻痹供应管线之前夹紧管。

    Single stage venous catheter
    2.
    发明授权
    Single stage venous catheter 失效
    单级静脉导管

    公开(公告)号:US5041084A

    公开(公告)日:1991-08-20

    申请号:US564606

    申请日:1990-08-09

    CPC classification number: A61M25/007 A61M1/3659 A61M25/0069

    Abstract: A single stage catheter which is used in open heart surgery to by-pass blood from the heart to a life support machine. The single stage catheter has a spiral lead flute for insertion into the inferior vena cava of the heart and a root section with multiple openings to be positioned in the right atrium of the heart. The flutes of the spiral lead to small quadrant openings in the end of the root section which also has long and short axial slot openings leading to the interior of the catheter. An obturator is designed to block the long and short axial slots during insertion to allow flow only through the quadrant openings to the interior of the obturator.

    Cannula reinforcing band and method
    3.
    发明授权
    Cannula reinforcing band and method 有权
    插管加强带和方法

    公开(公告)号:US08377036B2

    公开(公告)日:2013-02-19

    申请号:US12145798

    申请日:2008-06-25

    CPC classification number: A61M25/0054 A61M25/005 A61M25/0053 Y10T29/49826

    Abstract: A cannula assembly having a hollow elongate cannula with a proximal end, a distal end, and a central axis. A coiled reinforcing member is disposed along a portion of the hollow elongate cannula and is adapted to provide structural support to the elongate cannula. An intermediate reinforcing band is disposed on the elongate cannula between the proximal end and the distal end to reinforce a perforated section in the wall of the cannula and includes a forward edge, a rearward edge, at least one rib and at least one protrusion extending orthogonally from the forward edge and at least one protrusion extending from the rearward edge. A distal reinforcing band is disposed at the distal end of the elongate cannula and has a plurality of fingers that taper slightly inwardly toward the central axis of the hollow elongate cannula.

    Abstract translation: 套管组件,其具有中空细长插管,其具有近端,远端和中心轴线。 螺旋加强构件沿着中空细长插管的一部分设置,并且适于向细长插管提供结构支撑。 中间加强带设置在细长插管之间的近端和远端之间,以加强套管壁中的穿孔部分,并且包括前边缘,后边缘,至少一个肋和至少一个正交延伸的突起 从前缘和从后边缘延伸的至少一个突起。 远端加强带设置在细长插管的远端处,并且具有多个指向中空细长插管的中心轴线稍微向内倾斜的指状物。

    Aortic cannula with reduced velocity flow-through tip
    5.
    发明授权
    Aortic cannula with reduced velocity flow-through tip 失效
    主动脉套管具有减小的流速通过尖端

    公开(公告)号:US5976114A

    公开(公告)日:1999-11-02

    申请号:US70884

    申请日:1998-04-30

    CPC classification number: A61M25/001 A61M1/3659 A61M25/007

    Abstract: An improved aortic cannula is formed from a cannula body and a tip provided on the distal end of the cannula body wherein the tip is designed to accommodate the fluid flow requirements of an extracorporeal bypass system while simultaneously minimizing any possible adverse impact of the cannula and fluid flow on the vessel in which the cannula is received. The tip has an axial fluid discharge aperture provided at the distal end thereof through which a portion of the fluid exiting the cannula flows. In addition, at least one lateral fluid discharge aperture is provided in the sidewall of the tip. A scoop or other diverting member is formed in the sidewall to direct a portion of the fluid flowing through the tip to exit the cannula through the lateral fluid discharge apertures.

    Abstract translation: 改进的主动脉插管由插管主体和设置在套管主体的远端上的尖端形成,其中尖端被设计成适应体外旁路系统的流体流量要求,同时最小化套管和流体的任何可能的不利影响 在其中容纳插管的容器上流动。 尖端具有设置在其远端处的轴向流体排放孔,一部分离开套管的流体通过该流体排出孔流动。 此外,在尖端的侧壁中提供至少一个侧向流体排出孔。 在侧壁中形成勺子或其他转向构件以引导流过尖端的流体的一部分以通过横向流体排出孔离开套管。

    Two-stage venous cannula with expandable reinforcing member
    6.
    发明授权
    Two-stage venous cannula with expandable reinforcing member 失效
    具有可扩张加强构件的两级静脉插管

    公开(公告)号:US5769828A

    公开(公告)日:1998-06-23

    申请号:US663563

    申请日:1996-06-13

    Abstract: A two-staged venous cannula is disclosed. The cannula includes an expandable reinforcing member around the atrial basket that prevents the cannula from kinking or collapsing in the area where the reinforcing member is applied. The reinforcing member preferably consists of an even number of rigid discrete beams of the same length equally spaced about the circumference of a cylinder. In an alternate embodiment, the beams may be equally spaced on the surface of a cone. Alternate spaces between the beams are formed. The alternate spaces between the beams are equally spaced around the circumference of the cannula. The alternate spaces between the beams remain equally spaced around the circumference of the cannula as the reinforcing member is expanded over a larger diameter. This design for the reinforcing member provides space between the beams where holes of the preferred shape, size and orientation can be placed through the cannula without requiring cutting through the material of the reinforcing member.

    Abstract translation: 公开了一种两级静脉插管。 套管包括围绕心房篮的可扩张加强构件,其防止套管在加强构件被施加的区域中扭结或塌陷。 加强构件优选地由偶数数量的圆柱体周长等间隔地具有相同长度的刚性离散梁组成。 在替代实施例中,梁可以等距分布在锥体的表面上。 形成梁之间的交替空间。 梁之间的交替空间围绕套管的圆周等间隔。 当加强构件在较大直径上膨胀时,梁之间的备用空间围绕插管的圆周保持等间隔。 用于加强构件的该设计提供了梁之间的空间,其中优选形状,尺寸和取向的孔可通过套管放置,而不需要切割加强构件的材料。

    Percutaneous transseptal left atrial cannulation system
    7.
    发明授权
    Percutaneous transseptal left atrial cannulation system 失效
    PERCUTANEOUS TRANSSEPOLE左心房抽搐系统

    公开(公告)号:US5190528A

    公开(公告)日:1993-03-02

    申请号:US600483

    申请日:1990-10-19

    CPC classification number: A61M25/01 A61M25/06 A61M25/0668 Y10T477/6351

    Abstract: A transseptal left atrial cannulation system which provides drainage of left atrial blood without the need for thoracotomy. A guide wire and a long needle assembly are inserted into a catheter. A cannula rides over the exterior of this catheter. The guide wire may be advanced past the needle assembly and through a catheter through the distal end of the catheter to assist in directing the system to the right atrium. The cannulation system is inserted in a femoral vein located in the groin. Both the guide wire and needle assembly are long enough to allow a substantial length to extend out of the body at the groin for manipulation even when the distal ends of the guide wire and needle assembly are positioned in the heart. When the catheter distal end is positioned adjacent the septum in the right atrium, the guide wire is withdrawn from the catheter orifice and the needle assembly moves past the guide wire and through the catheter orifice to a position adjacent to the septum. The needle pierces the septum and the catheter moves over the needle assembly to further dilate the septal hole. The cannula attached to the catheter also moves through the septal hole, further dilating it, and resting with the holes in the left atrium. The guide wire, the needle assembly, and the catheter are withdrawn from the cannula. Oxygenated blood from the left atrium drains through the cannula to the extracorporeal pump and back to the body through an arterial cannula.

    Abstract translation: 经心脏左心房插管系统,无需胸廓切开术即可提供左心房血液的引流。 导丝和长针组件插入导管中。 套管穿过该导管的外部。 引导线可以经过针组件并穿过导管穿过导管的远端,以帮助将系统引导到右心房。 插管系统插入位于腹股沟的股静脉。 引导线和针组件都足够长,以使即使当导丝和针组件的远端定位在心脏中时,相当长度也能在腹股沟处延伸出体外,以进行操作。 当导管远端邻近右心房的隔膜定位时,导丝从导管孔中取出,针组件移动通过导丝并穿过导管孔移动到与隔膜相邻的位置。 针刺穿隔膜,导管移动到针组件上,以进一步扩大隔膜孔。 连接到导管的插管也可以穿过隔膜孔,进一步扩张,并与左心房中的孔一起休息。 引导线,针组件和导管从插管中取出。 来自左心房的氧合血液通过套管排出到体外泵并通过动脉插管返回到身体。

    Method and device for electronically controlling the beating of a heart

    公开(公告)号:US06542774B2

    公开(公告)日:2003-04-01

    申请号:US09897630

    申请日:2001-07-02

    Abstract: An electro-stimulation device includes a pair of electrodes for connection to at least one location in the body that affects or regulates the heartbeat. The electro-stimulation device both electrically arrests the heartbeat and stimulates the heartbeat. A pair of electrodes are provided for connection to at least one location in the body that affects or regulates the heartbeat. The pair of electrodes may be connected to an intravenous catheter for transvenous stimulation of the appropriate nerve. A first switch is connected between a power supply and the electrodes for selectively supplying current from the power supply to the electrodes to augment any natural stimuli to the heart and thereby stop the heart from beating. A second switch is connected between the power supply and the electrodes for selectively supplying current from the power supply to the electrodes to provide an artificial stimulus to initiate heartbeating. In another aspect, the invention is directed to a method for arresting the beat of a heart in a living body comprising the steps of connecting the pair of electrodes to at least one location in the body that affects or regulates the heartbeat and supplying an electrical current to the electrodes of sufficient amplitude and duration to arrest the heartbeat. The device may also serve to still the lungs by input to a respirator or by stimulation of the phrenic nerve during surgical procedures.

    Method of placing a cannula
    10.
    发明授权
    Method of placing a cannula 有权
    放置插管的方法

    公开(公告)号:US6120494A

    公开(公告)日:2000-09-19

    申请号:US328822

    申请日:1999-06-09

    Abstract: A cannula assembly for insertion in a blood vessel includes a cannula and a dilator. The cannula has a proximal end, a distal end, and a lumen extending therebetween. The dilator, which is telescopically received in the lumen of the cannula, includes proximal and distal ends, a passage extending between the proximal and distal ends, and a dilator tip disposed at the distal end. The cannula assembly further includes a needle and a guide wire disposed within the passage of the dilator. The dilator tip has an opening formed therein for receiving one of the needle and guide wire. The dilator tip is configured to limit insertion of the needle in the blood vessel.

    Abstract translation: 用于插入血管的插管组件包括插管和扩张器。 套管具有近端,远端和在其间延伸的内腔。 可伸缩地容纳在套管的内腔中的扩张器包括近端和远端,在近端和远端之间延伸的通道和设置在远端的扩张器尖端。 插管组件还包括设置在扩张器的通道内的针和导丝。 扩张器尖端具有形成在其中的开口,用于接收针和导丝中的一个。 扩张器尖端构造成限制针在血管中的插入。

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