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    • 72. 发明授权
    • Non-invasive method and apparatus for measuring mixed venous blood
carbon dioxide pressure (PVC02) and other physiological variables
    • 用于测量混合静脉血二氧化碳压力(PVC02)和其他生理变量的非侵入性方法和装置
    • US4941476A
    • 1990-07-17
    • US89877
    • 1987-08-27
    • Joseph Fisher
    • Joseph Fisher
    • A61B5/083
    • A61B5/0836
    • A method of determining the mixed venous PCO.sub.2 (PvCO.sub.2) is disclosed, the method comprising the steps of: (a) measuring the PCO.sub.2 of the gases inhaled and exhaled by the patient under controlled conditions without rebreathing; (b) causing the patient to inhale a test gas containing at least a small concentration of CO.sub.2 and continuing to measure the PCO.sub.2 of the inspired and expired gases, the patient taking at least two breaths without rebreathing; (c) determining the PCO.sub.2 of the inspired gases (P.sub.I CO.sub.2) and the end tidal PCO.sub.2 of expired gases (PECO.sub.2); (d) determing the differences between the end tidal PCO.sub.2 and inspired PCO.sub.2 under control and test conditions, and relating it to the inspired PCO.sub.2 used in the determination of the difference. This relationship can be used to calculate the mixed venous PCO.sub.2.
    • 公开了一种测定混合静脉PCO2(PvCO2)的方法,所述方法包括以下步骤:(a)测量患者在受控条件下吸入和呼出的气体的PCO2,而无需再呼吸; (b)使患者吸入含有至少少量二氧化碳的测试气体,并继续测量启发和呼气的PCO2,患者至少进行两次呼吸,无需再呼吸; (c)确定吸入气体(PICO2)和呼出气体末端潮汐PCO2(PECO2)的PCO2; (d)在控制和测试条件下确定末端潮汐PCO2和启发PCO2之间的差异,并将其与用于确定差异的灵敏PCO2相关。 这种关系可用于计算混合静脉PCO2。
    • 74. 发明授权
    • Flexible heating elements
    • 柔性加热元件
    • US4255649A
    • 1981-03-10
    • US79060
    • 1979-09-26
    • Joseph Fisher
    • Joseph Fisher
    • H05B3/34H05B3/02
    • H05B3/34H05B2203/014
    • A heating element comprising a plurality of ceramic components strung together on a heating wire to form a flexible structure, adjacent ceramic components comprising integrally formed mating projections and depressions. The element comprises ceramic components of a first type each having a body defining two generally parallel passages therethrough, both passages terminating at one end in a common slot, one passage terminating at the other end in a depression, and the other passage terminating at the other end in a projection; and ceramic components of a second type having a body defining a passage therethrough terminating at one end in a depression and at the other end in a projection, the components of the first type forming two parallel rows, the components of the two rows being staggered relative to each other, and the components of the second type being arranged to fill spaces formed at the ends of the two relatively staggered rows such that the two rows of components are of substantially the same length and each passage in one row is aligned with a respective passage in the other row, the components being oriented such that the projections and depressions of adjacent rows interengage, and the wire being arranged to pass through the passages in each component and to lie in the slots in the components of said first type. .
    • 一种加热元件,其包括多个陶瓷部件,所述多个陶瓷部件串联在加热丝上以形成柔性结构,相邻的陶瓷部件包括一体形成的配合突起和凹陷部。 该元件包括第一类型的陶瓷部件,每个陶瓷部件具有限定两个大致平行的通道的主体,两个通道在一端在公共槽中终止,一个通道在另一端处于凹陷处,另一个通道终止于另一个 结束于投影; 和第二类型的陶瓷部件,其具有限定穿过的通道的主体,其终止于凹陷中的一端,而另一端处于突出部,所述第一类型的部件形成两个平行的行,所述两行的部件相互交错 并且第二类型的部件被布置成填充形成在两个相对错开的行的端部处的空间,使得两排部件具有基本上相同的长度,并且一行中的每个通道与相应的 通道在另一排中,所述部件被定向成使得相邻行的突起和凹陷互相接合,并且所述线布置成穿过每个部件中的通道并且位于所述第一类型的部件中的狭槽中。 。