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1.发明授权
公开(公告)号：US5606977A
公开(公告)日：1997-03-04
申请号：US368425
申请日：1995-01-04
IPC分类号： A61B5/022 , A61B5/0225 , A61B5/00
CPC分类号： A61B5/02225 , A61B5/0225
摘要： An automated sphygmomanometer which automatically determines when a blood pressure determination needs to be made. During a "guard mode" determination, a cuff on an appendage of the patient is frequently inflated to a check pressure, which is preferably below the patient's mean arterial pressure ("MAP"), and the signature (shape, amplitude, pulse period, etc.) of the measured oscillometric signal is compared to a stored signature of a portion of an oscillometric signal at a corresponding portion of the oscillometric envelope determined during a previous blood pressure determination. If these signals differ by some predetermined amount, it is determined that the patient's blood pressure has changed significantly and that a new blood pressure determination needs to be conducted immediately. These guard mode determinations are made in addition to the normal blood pressure determinations made at predetermined intervals typically selected by the user. In addition, the shape of the oscillometric signal is quantified during guard mode so that it is possible to discriminate oscillations on the diastolic side of a patient's oscillometric envelope from oscillations on the systolic side of the patient's oscillometric envelope, thereby preventing a large shift in the oscillometric envelope from going undetected.
摘要翻译： 自动血压计自动确定何时需要进行血压测定。 在“保卫模式”确定期间，患者附肢的袖带经常膨胀至检查压力，其优选低于患者的平均动脉压（“MAP”），并且签名（形状，幅度，脉冲周期， 等等）与在先前的血压测定期间确定的示波包络的对应部分处的示波器信号的一部分的存储的签名进行比较。 如果这些信号差异了预定量，则确定患者的血压显着变化，需要立即进行新的血压测定。 除了通常由用户选择的预定间隔进行的正常血压测定之外，还进行这些保护模式确定。 此外，在保护模式期间量化示波器信号的形状，使得可以将患者示波包络的舒张侧上的振荡与患者示波包络的收缩侧上的振荡区分开，从而防止患者的示波包络的收缩侧的振荡 示波器信封从未被检测到。
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2.发明授权Catheter needle having surface indication thereon and process for forming such catheter 失效具有表面指示的导管针和用于形成这种导管的工艺
公开(公告)号：US5484422A
公开(公告)日：1996-01-16
申请号：US120109
申请日：1993-09-10
CPC分类号： A61M25/065 , A61M25/0009 , A61M25/001
摘要： A catheter needle having surface indication thereon and process for forming such catheter by laser marking of the needle with a visual surface indicator of the terminus of the catheter tube.
摘要翻译： 一种其上具有表面指示的导管针及其通过针头的激光标记形成该导管的工艺，其具有导管管的末端的视觉表面指示器。
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公开(公告)号：US5397512A
公开(公告)日：1995-03-14
申请号：US120110
申请日：1993-09-10
CPC分类号： B29C66/8432 , A61M25/0009 , A61M25/065 , B23K26/0823 , B23K26/361 , B29C65/1654 , B29C65/1664 , B29C66/1122 , B29C66/52272 , B29C66/5344 , B29C66/65 , B29C66/7392 , A61M25/001 , B29C65/1606 , B29L2031/7542
摘要： A process is provided wherein a laser is used to shape and/or trim a polymer tubular catheter material while in situ on a metal insertion needle or cannula. The laser process seals the interface between the polymer catheter material and the metal cannula to prevent the flow of blood between the tubular catheter and the introducing cannula during insertion into a patient. The interface is of sufficient strength to resist such blood flow, but still sufficiently weak to prevent the removal of the cannula needle after insertion into a patient.
摘要翻译： 提供了一种方法，其中激光用于在金属插入针或套管上原位形成和/或修整聚合物管状导管材料。 激光工艺密封聚合物导管材料和金属插管之间的界面，以防止在插入病人期间管状导管和引入插管之间的血液流动。 该界面具有足够的强度以抵抗这种血液流动，但是仍然足够弱以防止在插入患者体内之后去除套管针。
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公开(公告)号：US5218968A
公开(公告)日：1993-06-15
申请号：US823909
申请日：1992-01-22
申请人： Howard P. Apple
发明人： Howard P. Apple
CPC分类号： A61B5/02007 , A61B5/022 , A61B5/02225
摘要： A method and apparatus are described for determining characteristics of peripheral arterial volume and compliance. A blood pressure cuff is inflated and deflated around a limb of the body and pressure measurements are taken. The volume of air removed from the cuff is determined in a quantifiable manner, such as by expelling air through an orifice of known characteristics or by means of a volume of know characteristics. The detected pressures and volume of air removed are used to compute oscillation volume, which in turn is used to display arterial capacity and compliance as a function of transmural pressure and time. Arterial capacity may be displayed in terms of arterial radius, arterial cross-sectional area, or arterial volume. A display of these characteristics as a function of pre and post anesthetic administration is particularly useful to the anesthesiologist and surgeon.
摘要翻译： 描述了一种用于确定外周动脉体积和依从性的特征的方法和装置。 血压袖带在身体的肢体周围膨胀和放气，并进行压力测量。 从袖带去除的空气体积可以以可量化的方式确定，例如通过已知特征的孔排出空气，或者通过一定数量的已知特征排出空气。 检测到的压力和排出的空气体积用于计算振荡体积，其反过来用于显示作为透壁压力和时间的函数的动脉容量和依从性。 动脉容量可以以动脉半径，动脉横截面积或动脉体积显示。 作为麻醉前和麻醉后施用的功能的这些特征的显示对麻醉医师和外科医生特别有用。
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公开(公告)号：US5193543A
公开(公告)日：1993-03-16
申请号：US865774
申请日：1992-04-06
申请人： Mark Yelderman
发明人： Mark Yelderman
IPC分类号： A61B5/00
CPC分类号： A61B5/14551
摘要： A method and apparatus for non-invasively measuring blood constituent concentration and particularly the oxygen saturation of arterial blood. The apparatus includes at least one light source directed to a tissue area of a patient, such as a finger or earlobe. A photodetector receives emitted light passing through the sample, and a receiver circuit analyzes the data and produces an output which is proportional to the oxygen content of blood. The light source is modulated onto a preselected carrier frequency and the receiver circuit is tuned to the carrier frequency so that undesired signals such as ambient light can be filtered out leaving only the signals created by the emitted light passing through the tissue at the light source frequency. The oxygen content is then calculated using the patient's known red cell count, thereby correcting the final saturation value for patient anemia. Moreover, the calculation for oxygen saturation incorporates red cell scattering parameters for increased accuracy in clinical environments.
摘要翻译： 用于非侵入性地测量血液成分浓度，特别是动脉血的氧饱和度的方法和装置。 该装置包括至少一个光源，其指向患者的组织区域，例如手指或耳垂。 光电检测器接收通过样品的发射光，并且接收器电路分析数据并产生与血液的氧含量成比例的输出。 光源被调制到预选的载波频率上，并且接收器电路被调谐到载波频率，使得不期望的信号例如环境光可以被滤出，留下仅由发射的光产生的信号通过组织在光源频率 。 然后使用患者已知的红细胞计数计算氧含量，从而校正患者贫血的最终饱和度值。 此外，氧饱和度的计算结合红细胞散射参数，以提高临床环境的准确性。
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公开(公告)号：US5067492A
公开(公告)日：1991-11-26
申请号：US564179
申请日：1990-08-07
CPC分类号： A61B5/0836 , A61B5/097
摘要： A disposable endotracheal airway adapter for use in proximity of a patient's mouth in the measurement of the concentraton of respiratory gases. The disposable airway adapter of the invention provides a conduit for patient respiratory gases and allows the passage of infrared radiation through the gases for measuring the constituent concentration of the respiratory gases while keeping the patient gases from coming in contact with the analyzer mechanism. The body of the airway adapter is designed to connect in series with the airway tubing which connects a patient to a mechanical respirator or anesthesia breathing circuit. The body of the airway adapter is very light in weight and is formed of inexpensive material such as polyethylene or polypropylene so that it may be manufactured inexpensively and discarded after each use. An inexpensive optical window in the adapter is also formed of material such as polyethylene or polypropylene so that the gas analyzer can pass light into the sample for analysis. Preferably, the optical windows of the invention are made of the same material as the adapter body. Since the adapter of the invention may be disposed of after use on a single patient, sterilization expenses and cross-contamination may be minimized. Also, calibrating integrity is maintained through a calibration process which accounts for the non-linearity of the absorption spectra of the window material in the region of interest.
摘要翻译： 用于测量呼吸气体浓度的患者口腔附近的一次性气管插管气道适配器。 本发明的一次性气道适配器提供用于患者呼吸气体的导管，并允许红外辐射通过气体，用于测量呼吸气体的组成浓度，同时保持患者气体不与分析器机构接触。 气道适配器的主体设计成与将患者连接到机械呼吸器或麻醉呼吸回路的气道管串联连接。 气道适配器的主体重量非常轻，并且由诸如聚乙烯或聚丙烯的廉价材料形成，使得可以在每次使用后廉价地制造和丢弃。 适配器中的廉价的光学窗口也由诸如聚乙烯或聚丙烯的材料形成，使得气体分析仪可以将光通过样品进行分析。 优选地，本发明的光学窗口由与适配器主体相同的材料制成。 由于本发明的适配器可以在使用后在单个患者身上处理，因此可以使灭菌费用和交叉污染最小化。 此外，校准完整性通过考虑到感兴趣区域中窗口材料的吸收光谱的非线性的校准过程来维持。
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公开(公告)号：US4952207A
公开(公告)日：1990-08-28
申请号：US217246
申请日：1988-07-11
申请人： Francis P. Lemieux
发明人： Francis P. Lemieux
CPC分类号： A61M25/0618 , A61M25/0606 , A61M5/158 , A61M5/3273
摘要： An I.V. catheter is described, including a catheter and hub assembly and a needle and hub assembly. A needle guard, including a tubular distal portion and a split proximal flange, is located about the needle at the distal end of the needle hub. The needle includes a slot near the needle tip. As the needle assembly is withdrawn from the catheter, the needle guard slides along the needle until the split flange engages the needle slot, which locks the tubular distal portion of the guard over the needle tip.
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公开(公告)号：US4863432A
公开(公告)日：1989-09-05
申请号：US220405
申请日：1988-06-30
申请人： Michael L. Kvalo
发明人： Michael L. Kvalo
IPC分类号： A61M25/02
CPC分类号： A61M25/02 , A61M2025/0213 , A61M2025/0253
摘要： A catheter assembly is provided to facilitate taping of the emplaced catheter onto the patient's body. The assembly comprises a catheter extending distally from a catheter hub. The hub has a hub axis co-axially aligned with the catheter and provided with a pair of opposed wings integral with the hub. Each of the wings having a proximal edge and a distal edge are such that a portion of at least one of these edges forms an acute angle with the axis of the hub of from about 35.degree. to about 55.degree. whereby the taping operation of the wings to the patient's body may be facilitated.
摘要翻译： 提供导管组件以便于将放置的导管贴到患者身上。 组件包括从导管毂向远端延伸的导管。 轮毂具有与导管同轴对准的轮毂轴，并且设置有与轮毂一体的一对相对翼。 具有近侧边缘和远侧边缘的每个翼片使得这些边缘中的至少一个边缘的一部分与轮毂的轴线形成约35°至约55°的锐角，由此翼部的带状操作 可以方便患者的身体。
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公开(公告)号：US4850805A
公开(公告)日：1989-07-25
申请号：US25314
申请日：1987-03-13
申请人： Kay Madsen , Frans Ludding
发明人： Kay Madsen , Frans Ludding
CPC分类号： F04B49/20 , A61M5/172 , F04B11/0041
摘要： A pump control system is described in which the pumping mechanism causes corresponding movement of a pair of capacitor plates. The plates are energized by an a.c. signal, and the signal produced by the plates is amplitude detected, with the amplitude modulation representing pumping force. The pumping force is converted to pumping pressure. The pumping pressure peak during pumping and the pressure minimum during filling are detected to determine the portion of a pumping cycle required to make the transition between these two pressure levels. The difference between the two pressure levels divided by the transition portion of the pumping cycle gives a measure of the compliance of the pump chamber. The ratio of the compliance measure to the total cycle, when multiplied by the nominal chamber volume, gives a measure of unpumped volume, which is subtracted from the nominal volume to give the volume actually pumped during a pump cycle. The volume pumped is compared with a desired flow rate to determine a speed control value for the motor of the pumping mechanism. A motor control signal is developed by subtracting from a constant number a value which is a factor of the spaced control value and the position of the motor.
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公开(公告)号：US4784577A
公开(公告)日：1988-11-15
申请号：US25300
申请日：1987-03-13
申请人： Carl Ritson , Hal C. Danby
发明人： Carl Ritson , Hal C. Danby
CPC分类号： A61M5/16854 , A61M5/14224 , A61M2205/12 , A61M2205/128 , Y10S128/13 , Y10T137/7559 , Y10T137/7895
摘要： A back pressure sensor comprising a flexible beam having a pivot end with a pivot pin and a drive connector end with a means for engaging a pump drive. A pump actuator is connected to the flexible beam at a position intermediate the ends and connects with a positive displacement pumping member. A sensor beam is attached to the flexible beam at a connecting point spaced from said pivot end. A first capacitor plate is mounted on the flexible beam at a point which is spaced from the connecting point. A second capacitor plate is mounted on the sensor beam in a position facing and spaced apart from the first capacitor plate at a distance therefrom which permits formation of a capacitance coupling therebetween. The back pressure sensor is particularly advantageous for use with positive displacement pumps such as diaphragm pumps, peristaltic pumps and piston pumps used in parenteral solution delivery systems where substantially increases in back pressure present a hazard to the patient to which liquid is being infused.
摘要翻译： 背压传感器包括具有枢转端的柔性梁和枢轴销，驱动连接器端部具有用于接合泵驱动器的装置。 泵致动器在端部中间的位置处连接到柔性梁，并与正位移泵送构件连接。 传感器光束在与所述枢轴端间隔开的连接点附接到柔性梁。 第一电容器板以与连接点间隔开的点安装在柔性梁上。 第二电容器板安装在传感器光束上，与第一电容器板相距一定距离并与之隔开一定距离，允许在它们之间形成电容耦合。 背压传感器特别有利于与诸如隔膜泵，蠕动泵和肠胃外溶液输送系统中使用的活塞泵之类的容积式泵一起使用，其中背压大大增加对被输注液体的患者构成危险。
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