Impedance plethysmograph using concurrent processing

    公开(公告)号:US10231635B1

    公开(公告)日:2019-03-19

    申请号:US15256076

    申请日:2016-09-02

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    Abstract: A system and method for measuring the impedance and impedance changes in a body segment are disclosed. By utilizing an ECG buffer, at least one plethysmograph buffer, and concurrently performing at least extraction of an ECG waveform stored in the ECG buffer and extraction of impedance waveforms stored in the at least one plethysmograph buffer, enhanced signal-to-noise ratios of output signals of impedance plethysmographs are achieved. In an embodiment, improved waveform selection using template matching is also achieved. With template matching, a new candidate waveform is compared in shape to the previous average waveform and may be accepted for current averaging based on the comparison.

    Device for non-invasive measurement of blood pressure and ankle-brachial index
    2.
    发明授权
    Device for non-invasive measurement of blood pressure and ankle-brachial index 有权
    用于非侵入性测量血压和踝肱指数的装置

    公开(公告)号:US08409105B2

    公开(公告)日:2013-04-02

    申请号:US12564573

    申请日:2009-09-22

    CPC classification number: A61B5/022 A61B5/02141 A61B5/0535 A61B5/6824

    Abstract: A device for non-invasive measurement of blood pressure includes a blood pressure cuff, a plethysmographic electrode for acquiring an impedance plethysmogram distal to the cuff and a processing device to inflate and deflate the cuff, generate the impedance plethysmogram and to determine the systolic and diastolic blood pressures. It is determined when the cuff is completely occluding the extremity, e.g., by detecting pulses at a second, partially occluded cuff or by a photoplethysmogram attached to the big toe. The device can be used to measure systolic or diastolic blood pressure or both. It can also be used to take ankle-brachial measurements. An autocorrelation technique can be used to correct noise.

    Abstract translation: 用于非侵入式测量血压的装置包括血压套管,用于获取袖带远端的阻抗体积描记图的体积描记电极和用于使袖带膨胀和放气的处理装置,产生阻抗体积图并确定收缩和舒张 血压。 确定袖带何时完全闭塞末端,例如通过检测在第二部分闭塞的袖带上的脉冲或通过附着在大脚趾上的光电容积图来确定。 该装置可用于测量收缩压或舒张压或两者。 它也可用于进行踝臂测量。 可以使用自相关技术来校正噪声。

    Multilumen angiography catheter
    3.
    发明授权
    Multilumen angiography catheter 失效
    多光谱导管

    公开(公告)号:US5122115A

    公开(公告)日:1992-06-16

    申请号:US447717

    申请日:1989-12-08

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    CPC classification number: A61M25/1011 A61M2025/0036

    Abstract: A multiple lumen catheter specifically adapted for selective visualization of one or the other of the coronary arteries. One lumen of the multiple lumen catheter is adapted to deliver contrast agent to the coronary artery to be visualized while a second, and optionally a third, lumen is adapted to limit flow of contrast agent to one or more other locations in the aortic root complex. The invention also includes a method of preparing for coronary angiography using such a catheter.

    Abstract translation: 特别适用于一种或另一种冠状动脉的选择性可视化的多腔导管。 多内腔导管的一个内腔适于将造影剂递送到冠状动脉以被可视化,而第二和任选的第三腔适于限制造影剂流向主动脉根部复合体中的一个或多个其它位置。 本发明还包括使用这种导管制备冠状动脉造影的方法。

    Pivotable joint and joint locking mechanism for a foldable frame
    4.
    发明授权
    Pivotable joint and joint locking mechanism for a foldable frame 失效
    可折叠的关节和关节锁定机构

    公开(公告)号:US5069238A

    公开(公告)日:1991-12-03

    申请号:US592815

    申请日:1990-10-04

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    CPC classification number: E04H15/48 Y10T403/32327 Y10T403/32918

    Abstract: A pivotable joint and a joint locking mechanism for a foldable frame apparatus are disclosed. The joint comprises mating male and female joint members mounted to the ends of tubular frame members and pivotably connected together to form oppositely articulatable joints of a foldable frame useful for tent enclosures and the like. A one-piece joint locking mechanism made of wire is provided for locking the joint in its erected or folded positions.

    Abstract translation: 公开了一种用于可折叠框架装置的可枢转接头和接头锁定机构。 接头包括安装到管状框架构件的端部并且可枢转地连接在一起以形成用于帐篷外壳等的可折叠框架的相对铰接的接头的配合的公和母接头构件。 提供由导线制成的单件接头锁定机构,用于将接头锁定在其竖立或折叠位置。

    MAGNETIC LICENSE PLATE HOLDER SYSTEM

    公开(公告)号:US20220111806A1

    公开(公告)日:2022-04-14

    申请号:US17500497

    申请日:2021-10-13

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    Abstract: Magnetic license plate holder systems are disclosed. Embodiments are directed to a magnetic license plate holder system including a license plate which includes a rear side and an opposing front side. The magnetic license plate holder system also includes a magnetic attachment system which includes: a rear attachment system configured to be positioned between a license plate holder and the rear side of the license plate, while facing the rear side of the license plate; and a front attachment system configured to be facing the front side of the license plate. The rear attachment system is configured to be releasably attached to the front attachment system. Each of the rear attachment system and the front attachment system includes either a magnet or a non-magnetic ferric material. At least one of the rear attachment system or the front attachment system comprises a magnet.

    Safety needle and method of making same
    6.
    发明授权
    Safety needle and method of making same 失效
    安全针及其制作方法

    公开(公告)号:US08617118B1

    公开(公告)日:2013-12-31

    申请号:US12264618

    申请日:2008-11-04

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    CPC classification number: A61M5/3275 A61M2005/3249

    Abstract: Improvements in a safety hypodermic needle and a method of making the same are disclosed. The improvements relate to a commercial embodiment of a patented safety needle and comprise a tubular member extruded from a flexible elastomeric or rubber-like polymeric material. The tubular member is extruded with two ribs extending from the outer wall of the tubular member and spaced apart 90° circumferentially. The wall of the tubular member is provided with through cuts to form a cutout on one wall portion and an elongated lever on the opposite wall portion in the 90° space between the ribs. The cuts separate the wall of the tubular member into two outwardly flexible arms, each having a single rib thereon adjacent an edge of the arm. One end of the tubular member is stretched over the needle hub of a hypodermic needle and the other end is stretched over a needle cup which houses the sharp needle point. The needle cup is provided with a needle opening through which the needle extends during use. After use the flexible arms automatically return the needle cup into a protective position housing the needle point. Latching mechanisms are provided on the hub and lever for releasably holding the arms in a “cocked” position or for permanently holding the arms in a disabled or “safe” condition to prevent inadvertent needle sticks.

    Abstract translation: 公开了安全性皮下注射针的改进及其制备方法。 这些改进涉及专利安全针的商业实施例,并且包括从柔性弹性体或橡胶状聚合物材料挤出的管状构件。 管状构件被挤压成具有从管状构件的外壁延伸并且周向间隔开90°的两个肋。 管状构件的壁设置有贯穿切口,以在肋部之间的90°空间中的一个壁部上形成切口并在相对壁部分上形成细长杆。 切口将管状构件的壁分成两个向外柔性的臂,每个臂在邻近臂的边缘上具有单个肋。 管状构件的一端在皮下注射针的针座上拉伸,另一端在容纳尖锐针尖的针杯上拉伸。 针杯设置有针开口,针在使用期间延伸。 使用后,柔性手臂将针杯自动返回到包含针尖的保护位置。 锁定机构设置在轮毂和杠杆上,用于可释放地将手臂保持在“压缩”位置,或者将臂永久地保持在禁用或“安全”状态,以防止无意的针刺。

    Safety needle and method of using same
    7.
    发明授权
    Safety needle and method of using same 失效
    安全针及其使用方法

    公开(公告)号:US5256152A

    公开(公告)日:1993-10-26

    申请号:US850959

    申请日:1992-03-11

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    Abstract: A safety hypodermic needle and a method of using the same are disclosed. The safety needle comprises a hypodermic needle and a protective sheath molded of an flexible polymeric material. The protective sheath comprises a needle cup which encloses the sharp needle point and is supported on a plurality of outwardly flexed ribs. The needle cup has a needle opening which is misaligned with the needle axis in the at rest or unflexed condition of the protective sheath. Application of transverse and axial forces to the needle cup aligns the needle with the opening and cause the ribs to bow outwardly so that the needle passes through the opening and into the patient's body.

    Abstract translation: 公开了一种安全性皮下注射针及其使用方法。 安全针包括皮下注射针和由柔性聚合物材料模制的护套。 保护套包括围绕尖锐针尖的针杯,并且支撑在多个向外弯曲的肋上。 针杯具有针头开口,其在保护套的静止或未折叠状态下与针轴不对准。 向针杯施加横向和轴向力使针与开口对齐并使肋向外弯曲,使得针穿过开口并进入患者体内。

    Stereoscopic fluoroscopy apparatus and method of producing stereoscopic
X-ray images
    8.
    发明授权
    Stereoscopic fluoroscopy apparatus and method of producing stereoscopic X-ray images 失效
    立体荧光透视装置和立体X射线图像的制造方法

    公开(公告)号:US5233639A

    公开(公告)日:1993-08-03

    申请号:US619434

    申请日:1990-11-29

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    Abstract: A stereoscopic fluoroscopy apparatus comprising an X-ray source means, a specimen to be X-rayed, an image intensifier unit means to produce images of the X-rayed specimen, recording means to record and output said images as image pairs, offset means to create an output of different images forming each image pair, and means to direct said images to a viewer to create a stereoscopic image from said paired images.

    Abstract translation: 一种立体荧光透视装置,包括X射线源装置,待X射线的样本,用于产生X射线样本的图像的图像增强单元装置,用于记录和输出所述图像作为图像对的记录装置,偏移装置 创建形成每个图像对的不同图像的输出,以及将所述图像引导到观看者以从所述配对图像创建立体图像的装置。

    Precision radiography scaling device
    9.
    发明授权
    Precision radiography scaling device 失效
    精密放射学测量装置

    公开(公告)号:US5149965A

    公开(公告)日:1992-09-22

    申请号:US512844

    申请日:1990-04-23

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    CPC classification number: A61B6/583 G01N23/04 A61B6/508

    Abstract: At least one radiopaque sphere of known dimensions with means for positioning same in a radiographic image field and a method for scaling radiographic images including straight AP and lateral views using such a radiopaque sphere.

    Abstract translation: 具有已知尺寸的至少一个不透射线球体,其具有用于在放射线照相图像场中定位的装置,以及用于使用这种不透射线球体来放大包括直的AP和侧视图的放射线照相图像的方法。

    Aperture occlusion device
    10.
    发明授权
    Aperture occlusion device 失效
    光圈闭塞装置

    公开(公告)号:US5108420A

    公开(公告)日:1992-04-28

    申请号:US649593

    申请日:1991-02-01

    Applicant: Lloyd A. Marks

    Inventor: Lloyd A. Marks

    Abstract: A device consisting of a wire for occluding an aperture within a body surface, such as atrial and ventricular septal defects (and the method of using such a device). The wire comprises two configurations, an elongated configuration for passage into said body through a catheter and through the aperture, and a preprogrammed configuration including occlusion-forming wire segments, one on each side of said aperture. The wire also includes means (preferably a temperature-induced shape change) for changing the wire from the elongated configuration to the preprogrammed configuration in the body.

    Abstract translation: 由用于阻塞体表内的孔的线例如心房和室间隔缺损(以及使用这种装置的方法)组成的装置。 导线包括两个构造,细长结构,用于通过导管和穿过该孔进入所述主体,以及包括闭塞形成线段的预编程配置,在所述孔的每一侧上一个。 导线还包括用于将线从细长构型改变为主体中的预编程构型的装置(优选为温度引起的形状变化)。

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