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    • 3. 发明申请
    • DIGITAL STETHOSCOPE
    • 数字STETHOSCOPE
    • WO0232313A3
    • 2002-12-05
    • PCT/DK0100681
    • 2001-10-16
    • BANG & OLUFSEN MEDICOM AS
    • BAEKGAARD KNUD ERIKDALGAARD TORBEN NAUBRO
    • A61B7/04
    • A61B7/045A61B7/04
    • An electronic stethoscope having a vibration transducer, an amplifier, a headphone arrangement, and at least one digital filter for establishing at least one impulse transfer function corresponding to at least one acoustic stethoscope type. Thus, the signals heard will correspond to those learned, and thereby the advantages of greater amplification and elimination of noise sources may be fully utilized. The ability to compensate for an individual doctor's hearing loss is enabled. Furthermore, with stereoscopie embodiments, sound frequency distributions can be transformed to spatial or temporal sound distributions perceivable by the user facilitating, for example, the detection of heart murmurs and the taking of blood pressure.
    • 一种电子听诊器,具有振动换能器,放大器,耳机装置和至少一个数字滤波器,用于建立对应于至少一个听诊器类型的至少一个脉冲传递函数。 因此,所听到的信号将与所学习的信号相对应,并且因此可以充分利用更大放大和消除噪声源的优点。 能够补偿个人医生的听力损失。 此外,在立体视实施例中,声音频率分布可以被转换成用户可感知的空间或时间声音分布,从而促进例如心脏杂音的检测和血压的采集。
    • 4. 发明申请
    • WIDEBAND EXTERNAL PULSE CARDIAC MONITOR
    • 宽带外部脉冲监护仪
    • WO1997047236A1
    • 1997-12-18
    • PCT/US1997008993
    • 1997-05-28
    • K-ONE TECHNOLOGIES
    • K-ONE TECHNOLOGIESBLANK, SeymourSHARROCK, Nigel, E.
    • A61B05/00
    • A61B5/02007A61B5/02208A61B5/0225A61B5/029A61B5/412A61B5/7239A61B5/726A61B7/045
    • This invention is an apparatus for assessing cardiovascular status of a mammal comprising a system (20) for locally applying a pressure to an artery, capable of restricting blood flow through said artery, a wideband external pulse transducer (26), having an output, situated to measure acoustic signals proximate to said artery, and a computing device (32) receiving said output for calculating, based on said output, a peripheral vascular impedance value. The systolic and diastolic pressure are determined by an appearance and disappearance of a high frequency signal upon changes in cuff (10) pressure partially occluding arterial blood flow. The arterial pressure waveform is estimated by measuring the wide band acoustic emissions from a non-occluded artery. The peak and trough of the arterial pressure waveform are calibrated with the determined systolic and diastolic pressures. The systemic vascular resistance is computed by occluding blood flow with a supersystolic pressure, and calculating, based on a natural logarithm of a difference in amplitude between a first major systolic peak and first major systolic trough, and an amplitude of a second major systolic peak, a first order linear equation, which may be normalized for body surface area. The data combined may also be used to analyze cardiac output, arterial compliance, and dp/dt.
    • 本发明是用于评估哺乳动物的心血管状态的装置,包括用于局部施加压力的系统(20),该系统能够限制通过所述动脉的血液流动;宽带外部脉冲换能器(26),具有位于 以测量靠近所述动脉的声信号,以及接收所述输出的计算装置(32),用于基于所述输出计算外周血管阻抗值。 收缩压和舒张压由袖带(10)压力部分阻塞动脉血流变化时高频信号的出现和消失确定。 通过测量来自非闭塞动脉的宽带声发射来估计动脉压波形。 用确定的收缩压和舒张压校准动脉压波形的峰值和谷值。 通过闭塞具有超收缩压的血流来计算全身血管阻力,并且基于第一主要收缩期峰和第一主收缩期波段之间的幅度差异的自然对数和第二主要收缩期峰值的幅度来计算, 可以对体表面积进行归一化的一阶线性方程式。 数据组合也可用于分析心输出量,动脉顺应性和dp / dt。
    • 5. 发明申请
    • BLOOD PRESSURE CUFF WITH TAPERED BLADDER
    • BLOOD压力钳与锥形刀片
    • WO2016044459A1
    • 2016-03-24
    • PCT/US2015/050489
    • 2015-09-16
    • ST. LUKE MEDICAL, INC.
    • GLOTH, Sean T.GLOTH, Christopher
    • A61B17/135A61B5/025A61B5/022
    • A61B5/02233A61B5/022A61B5/025A61B7/045A61B17/135
    • A blood pressure cuff may comprise an alignment component, a sleeve, and a tapered inflatable bladder disposed within the sleeve. The tapered inflatable bladder may have a width that increases as the distance from the alignment component increases, and the tapered inflatable bladder and the alignment component may be configured to position the blood pressure cuff around a limb having a blood vessel and a circumference, such that at a position coincident with the blood vessel, the width of the tapered inflatable bladder is about 40% of the circumference of the limb. A method of using such a blood pressure cuff may comprise placing the alignment component at the position coincident with the blood vessel of the limb, wrapping the cuff around the limb such that the width of the tapered inflatable bladder overlaying the blood vessel is about 40% of the circumference of the limb, and inflating the bladder.
    • 血压袖带可以包括对准部件,套筒和设置在套筒内的锥形可充气囊。 锥形充气囊可以具有随着对准部件的距离增加而增加的宽度,并且锥形可充气囊和对准部件可以构造成将血压套环定位在具有血管和周边的肢体周围,使得 在与血管重合的位置处,锥形可充气膀胱的宽度为肢体周长的约40%。 使用这样的血压袖带的方法可以包括将对准部件放置在与肢体的血管重合的位置处,将袖带缠绕在肢体周围,使得覆盖血管的锥形可充气囊的宽度为约40% 的肢体周长,并使膀胱充气。