Bone marrow needle assembly
    1.
    发明授权
    Bone marrow needle assembly 失效
    骨髓针组装

    公开(公告)号:US5368046A

    公开(公告)日:1994-11-29

    申请号:US36474

    申请日:1993-03-24

    IPC分类号: A61B10/00 A61B10/02

    CPC分类号: A61B10/025 A61B2010/0258

    摘要: A bone marrow needle assembly includes a cannula housing supporting a cannula having a sharp distal end. The cannula housing is provided with a central throughbore in fluid communication with the cannula and with an ergonomic handle having a curved distal surface. A female luer lock fluid coupling is provided in the housing at the proximal end of the throughbore and within the periphery of the curved handle. A trocar is located within the cannula and extends through the luer lock and the throughbore. The trocar has a cap which extends over the luer lock and is rounded so that a substantially continuous rounded surface is presented by the semi-circular handle and the trocar cap. The distal end of the housing is provided with a threaded portion which receives a locking nut and a depth stop. The depth stop has a mating interior threaded bore which couples with the threaded distal portion of the housing so that the depth stop may be rotated to adjust the effective piercing length of the cannula. The locking nut is rotated into a locking position against the depth stop to secure the depth stop in a selected position.

    摘要翻译: 骨髓针组件包括支撑具有尖锐远端的插管的插管壳体。 插管壳体设置有与套管流体连通的中心穿孔,并具有具有弯曲远端表面的符合人体工程学的手柄。 在通孔的近端处并且在弯曲手柄的周边内的壳体中设置有女性鲁尔锁定液体联接器。 套管针位于插管内并延伸穿过鲁尔锁和通孔。 套针针头具有一个帽盖,该盖子在路厄尔锁上延伸,并且是圆形的,使得基本上连续的圆形表面由半圆形手柄和套管针帽呈现。 壳体的远端设置有接收锁定螺母和深度止挡件的螺纹部分。 深度限位器具有匹配的内螺纹孔,其与壳体的螺纹远端部分联接,使得深度限位器可以旋转以调节套管的有效穿刺长度。 锁定螺母被旋转到抵靠深度挡块的锁定位置,以将深度挡块固定在选定位置。

    Coaxial bone marrow biopsy needle assembly
    3.
    发明授权
    Coaxial bone marrow biopsy needle assembly 失效
    同轴骨髓活检针组装

    公开(公告)号:US5385151A

    公开(公告)日:1995-01-31

    申请号:US145793

    申请日:1993-11-01

    IPC分类号: A61B10/00 A61B10/02

    CPC分类号: A61B10/025 A61B2010/0258

    摘要: A coaxial bone marrow biopsy needle assembly is disclosed. The assembly includes a hollow cannula with a handle having an interlocking device and a trocar insertable in the cannula and having a second handle with another interlocking device which mates with the interlocking device in the cannula handle. The interlocking devices are a spring biased pin radially entering a receiving socket, and a notched projection which extends into the receiving socket. The pin has a ramped portion, and the notched projection has a rounded or conical tip which rides down the ramped portion of the pin and thereby pushes the biased pin radially out of the socket during assembly of the hollow cannula with the trocar. The assembled handles provides a smooth upper surface which fits comfortably in a palm and a lower gripping surface around which fingers easily wrap. The interlocking devices hold the handles securely together keeping the trocar within the cannula during puncture, but are easily separated thereafter.

    摘要翻译: 公开了一种同轴骨髓活检针组件。 组件包括具有手柄的中空插管,该手柄具有互锁装置和可插入插管中的套管针,并且具有第二手柄以及与插管手柄中的互锁装置配合的另一互锁装置。 互锁装置是径向进入接收插座的弹簧偏压销,以及延伸到接收插座中的凹口突起。 销具有倾斜部分,并且凹口突起具有圆形或圆锥形的尖端,其沿着销的斜坡部分向下滑动,从而在中空插管与套管针组装期间将偏压销径向推出插座。 装配好的手柄提供了一个平滑的上表面,舒适地配合在手指和手指容易包裹的下夹紧表面。 互锁装置将手柄牢固地保持在一起,在穿刺期间将套针针保持在套管内,但是之后容易分离。

    Air introduction system for medical needles
    4.
    发明授权
    Air introduction system for medical needles 失效
    医用针空气导入系统

    公开(公告)号:US5725509A

    公开(公告)日:1998-03-10

    申请号:US341528

    申请日:1994-11-17

    IPC分类号: A61B17/00 A61B17/34 A61M5/00

    摘要: An air introduction system for a medical needle assembly is provided and includes a flexible bladder, and a male luer assembly with an air valve which is biased to allow air to enter the air introduction system but not to exit. The air introduction system is coupled to a needle assembly which is to be introduced into the epidural space. As the needle traverses the tissue layers overlying the epidural space, and the practitioner applies pressure to the bladder, the practitioner experiences resistance to the forcing of air through the needle assembly. If air is lost from the bladder, the bladder may be refilled by releasing the pressure on it and allowing outside air to enter via the air valve. Once the epidural space is penetrated, air is quickly forced from the bladder through the needle assembly and the practitioner can feel a sudden drop in pressure. To aid in detection, the air introduction system is provided with an air activated sound device situated so as to be exposed to the air flow pushed out of the bladder. With the sound device, an audible warning is provided as the air rushes from the bladder through the needle assembly and into the epidural space.

    摘要翻译: 提供了一种用于医疗针组件的空气引入系统,并且包括柔性气囊和具有空气阀的阳性鲁尔组件,空气阀被偏置以允许空气进入空气引入系统,但不能排出。 空气引入系统联接到将被引入硬膜外腔的针组件。 当针穿过覆盖硬膜外腔的组织层时,从业者向膀胱施加压力时,从业者经历抵抗通过针组件强迫空气的阻力。 如果气囊从气囊中消失,则可以通过释放气囊来重新填充气囊,并允许外部空气通过空气阀进入。 一旦硬膜外腔被穿透,空气就迅速地从膀胱通过针组件强制,并且医师可以感觉到压力突然下降。 为了有助于检测,空气引入系统设置有空气启动的声音装置,其被设置为暴露于从气囊推出的空气流。 随着声音装置,当空气从膀胱穿过针组件并进入硬膜外腔时,提供可听见的警告。

    Needle assembly and methods useful for epidural anesthesia
    5.
    发明授权
    Needle assembly and methods useful for epidural anesthesia 失效
    针组装和方法适用于硬膜外麻醉

    公开(公告)号:US5685852A

    公开(公告)日:1997-11-11

    申请号:US223454

    申请日:1994-04-05

    摘要: The needle assembly of the present invention includes a hollow cannula having a sharp distal end, a hollow stylet having a blunt distal end with a radial opening and an interior deflection surface near the radial opening, and a mechanism for biasing the stylet in a first position where the blunt distal end of the stylet extends beyond the sharp distal end of the cannula. Preferably, the hollow cannula hub has a proximal end which is coupled, e.g., via insert molding, to a hollow cannula hub. Likewise, the stylet preferably includes a proximal end which is coupled, e.g., via insert molding, to a hollow stylet hub which is longitudinally movable within the hollow cannula hub. The mechanism for biasing typically comprises a spring inside the cannula hub which biases the stylet hub to the first position where the blunt distal end of the stylet extends beyond the sharp distal end of the cannula. The stylet is movable against the spring to a second position where the sharp distal end of the cannula extends beyond the blunt distal end of the stylet. A first indicator is provided on the cannula hub showing the position of the stylet relative to the cannula and a cannular orientation indictor on the cannula shows the direction of the radial opening.

    摘要翻译: 本发明的针组件包括具有尖锐远端的中空插管,具有钝的远端的中空管心针,其具有径向开口和靠近径向开口的内部偏转表面,以及用于将探针偏置在第一位置的机构 探针的钝的远端延伸超过套管的尖锐远端。 优选地,中空套管毂具有近端,其例如经由插入成型联接到中空套管毂。 同样,管心针优选地包括近端,其例如通过插入成型联接到中空的管心针毂,其可在中空套管毂内纵向移动。 用于偏置的机构通常包括在套管毂内的弹簧,其将探针轮毂偏置到第一位置,在第一位置,探针的钝的远端延伸超过套管的尖锐远端。 探针可以抵抗弹簧移动到第二位置,其中套管的尖锐远端延伸超过探针的钝的远端。 第一指示器设置在套管毂上,示出了探针相对于套管的位置,套管上的插入取向指示器显示径向开口的方向。

    Endoscopic hemostatic agent delivery system
    6.
    发明授权
    Endoscopic hemostatic agent delivery system 失效
    内镜止血剂递送系统

    公开(公告)号:US5281197A

    公开(公告)日:1994-01-25

    申请号:US919893

    申请日:1992-07-27

    IPC分类号: A61B17/00 A61M31/00

    CPC分类号: A61M37/0069

    摘要: An endoscopic tool for dispensing units of hemostatic agent broadly comprises a hollow tube which holds a plurality of individual units of the hemostatic agent, a valve at the distal end of the hollow tube which permits the hemostatic agent to pass therethrough but prevents foreign matter from contacting the hemostatic agent while in the tube, a plunger which extends into the hollow tube and contacts a proximal unit of the hemostatic agent, and a mechanism for moving the plunger distally in incremental movements to cause, upon each incremental movement, an individual unit of the hemostatic agent to be pushed through the valve. Typically, the mechanism for moving the plunger and the proximal end of the hollow tube are held in a handle. One mechanism for moving the plunger utilizes a portion of the plunger as a ratchet by forming a plurality of conical elements thereon, and utilizes a switch in the handle which has a V-spring coupled thereto as a pawl for advancing the conical elements. A second mechanism utilizes a regularly shaped notched cutout in the handle as the ratchet, and a vertical protrusion on the plunger which extends through the cutout as an engagement element. The notched cutout provides resilient stops, and the protrusion is shaped to allow it to be forced in a forward direction through each resilient stop and then to sit in another notch.

    摘要翻译: 用于分配止血剂单元的内窥镜工具广泛地包括保持止血剂的多个单独单元的中空管,在中空管的远端处的阀,其允许止血剂通过,但是防止异物接触 止血剂在管中,延伸到中空管中并接触止血剂的近端单元的柱塞,以及用于以增量运动向远侧移动柱塞的机构,以在每次增量运动时使单独的单元 止血剂被推过阀门。 通常,将柱塞和中空管的近端移动的机构保持在手柄中。 用于移动柱塞的一个机构通过在其上形成多个锥形元件而将柱塞的一部分用作棘轮,并且利用手柄中的开关,其中V形弹簧联接到其上作为用于推进锥形元件的棘爪。 第二机构使用手柄中的规则形状的切口切口作为棘轮,并且在柱塞上的垂直突起作为接合元件延伸穿过切口。 切口切口提供弹性止挡,并且突起成形为允许其通过每个弹性止动件沿向前的方向被迫,然后坐在另一个凹口中。

    Protected microbiological sampling brush assembly
    7.
    发明授权
    Protected microbiological sampling brush assembly 失效
    保护微生物采样刷总成

    公开(公告)号:US5792074A

    公开(公告)日:1998-08-11

    申请号:US611225

    申请日:1996-03-05

    摘要: A protected microbiological sampling brush assembly includes a sampling brush mounted on the distal end of a control wire, an inner catheter which houses the brush, an outer catheter which houses the inner catheter, and an elastomeric tip which is rigidly attached to the distal end of the outer catheter and which has a weakened end. The proximal ends of the control wire and catheters are coupled to a handle for independently moving the control wire, the inner catheter, and the outer catheter relative to each other. The weakened end of the elastomeric tip is preferably a slit which defines lips which are parted when the distal end of the inner catheter is moved distally against the elastomeric tip to allow the inner catheter to pass therethrough. When the inner catheter is moved proximally relative to the outer catheter, the lips of the elastomeric tip close to protect the inner catheter (and the sampling brush) from contamination. Easy to use handles which are attached to the proximal ends of the control wire, the inner catheter, and the outer catheter are disclosed.

    摘要翻译: 受保护的微生物采样刷组件包括安装在控制线的远端上的取样刷,容纳刷子的内导管,容纳内导管的外导管和刚性地附接到内导管 外导管并具有削弱端。 控制线和导管的近端联接到手柄,用于独立地相对于彼此移动控制线,内导管和外导管。 弹性末端的弱化端优选是限定唇部的狭缝,当内导管的远端远离弹性体顶端移动以允许内导管穿过其中时,唇部分开。 当内导管相对于外导管向近侧移动时,弹性体顶端的唇缘靠近以保护内导管(和采样刷)免受污染。 公开了附接到控制线,内导管和外导管的近端的易于使用的手柄。

    Trocar catheter for drainage
    8.
    发明授权
    Trocar catheter for drainage 失效
    套管针导管用于排水

    公开(公告)号:US5295977A

    公开(公告)日:1994-03-22

    申请号:US64461

    申请日:1993-05-11

    摘要: A trocar catheter includes a trocar rod having a stepped diameter distal end for use with a catheter having a stepped diameter lumen wherein the trocar is inserted into the lumen of the catheter and the trocar is used to incise a patient and install the catheter after which the trocar is removed from the lumen of the catheter. The distal end of the trocar rod is provided with a stepped coaxial bore into which a piercing point rod, a spring and a safety sleeve are assembled. The piercing point rod has a proximal small diameter portion which is press fit into a correspondingly small diameter portion of the coaxial bore in the distal end of the trocar rod. The spring is carried on the small diameter portion of the piercing point rod and biases the safety sleeve in a distal direction. The distal end of the piercing point rod has a larger diameter portion tapering to a piercing tip and the safety sleeve has a stepped inner diameter which prevents it from moving beyond a predetermined distal position covering the piercing tip. The stepped coaxial bore has a large diameter portion for receiving the safety sleeve when it is pressed proximally against the spring. A protrusion on the distal outer surface of the safety sleeve prevents the catheter from accidentally slipping off the trocar.

    摘要翻译: 套管针导管包括具有阶梯形直径远端的套管针杆,用于与具有阶梯直径内腔的导管一起使用,其中套管针插入导管的内腔中,套针针用于切开患者并安装导管 套管针从导管的内腔中取出。 套管针杆的远端设置有阶梯式同轴孔,组装有穿孔点杆,弹簧和安全套。 穿刺点杆具有近端小直径部分,该近端小直径部分压配合到套管针杆的远端中的同轴孔的相应小直径部分中。 弹簧被承载在穿刺点杆的小直径部分上,并且在远端方向上偏压安全套筒。 穿刺点杆的远端具有与穿刺尖端成锥形的较大直径部分,并且安全套筒具有阶梯形内径,防止其移动超过覆盖穿刺尖端的预定远端位置。 阶梯式同轴孔具有大直径部分,用于当其向近侧压靠弹簧时接收安全套筒。 在安全套管的远侧外表面上的突起防止导管意外滑出套管针。

    Swabbable needle-free injection port valve system with zero fluid displacement
    9.
    发明授权
    Swabbable needle-free injection port valve system with zero fluid displacement 有权
    具有零流体排量的可滑动无针注射口阀系统

    公开(公告)号:US07530546B2

    公开(公告)日:2009-05-12

    申请号:US11341119

    申请日:2006-01-26

    IPC分类号: F16K51/00 F16L29/00 F16L37/28

    摘要: An improved needle-free intravenous injection port assembly is disclosed. Embodiments include a boot valve with a helical surface, a boot valve and septum which mate with mechanical interference, a spike with a rough outer surface coated with a lubricant, a septum having a shoulder and a single continuous swabbable surface, a septum and a boot valve which are pre-punctured, a septum with a frustroconical extension and a combination single piece septum and boot valve. The injection port assembly provides zero fluid displacement during coupling and uncoupling.

    摘要翻译: 公开了一种改进的无针静脉注射口组件。 实施例包括具有螺旋表面的启动阀,与机械干扰配合的护罩阀和隔膜,具有涂覆有润滑剂的粗糙外表面的钉,具有肩部和单个连续可擦拭表面的隔膜,隔膜和靴子 预先穿刺的阀门,具有截头锥形延伸部的隔膜和单件隔膜和开启阀组合。 注入口组件在联接和解耦期间提供零流体位移。

    Swabbable needle-free injection port valve system with neutral fluid displacement
    10.
    发明授权
    Swabbable needle-free injection port valve system with neutral fluid displacement 有权
    具有中性流体位移的可擦拭无针注射口阀系统

    公开(公告)号:US06994315B2

    公开(公告)日:2006-02-07

    申请号:US10756601

    申请日:2004-01-13

    IPC分类号: F16K59/00 F16L29/00 F16L37/28

    摘要: An improved needle-free intravenous injection port assembly is disclosed. Embodiments include a boot valve with a helical surface, a boot valve and septum which mate with mechanical interference, a spike with a rough outer surface coated with a lubricant, a septum having a shoulder and a single continuous swabbable surface, a septum and a boot valve which are pre-punctured with a solid core steel needle, a septum with a frustroconical extension and a combination single piece septum and boot valve. The injection port assembly provides neutral fluid displacement during coupling and uncoupling.

    摘要翻译: 公开了一种改进的无针静脉注射口组件。 实施例包括具有螺旋表面的启动阀,与机械干扰配合的护罩阀和隔膜,具有涂覆有润滑剂的粗糙外表面的钉,具有肩部和单个连续可擦拭表面的隔膜,隔膜和靴子 用实心芯钢针预先穿刺的阀,具有截头锥形延伸部的隔膜和单件隔膜和引导阀组合。 注射端口组件在联接和解耦期间提供中性流体位移。