摘要:
An implantable medical device evaluates ventricular synchrony by determining a phase angle between at least two sensor signals that reflect mechanical contraction of the ventricles. In exemplary embodiments, two intracardiac impedance signals associated with the right and left ventricles, respectively, with two points within either of the left and right ventricles, or with both the left and right ventricles relative to a reference point, are processed. In such embodiments, fundamental frequency phases of each of the impedance signals may be compared to determine the phase angle between the signals. In some embodiments, the signals are used to dynamically adjust one or more timing intervals, such as a V-V timing interval, for delivery of cardiac resynchronization therapy (CRT) pacing. In such embodiments, the one or more timing intervals are periodically adjusted to reduce or possibly eliminate ventricular dysynchrony as indicated by the phase angle between the sensor signals.
摘要:
The present invention is directed to a glass composition comprising, based on mole %, 15-35% MO where M is selected from BaO, CaO, MgO, PbO, SrO and mixtures thereof, 30-60% TiO2, 10-30% B2O3, 1-7% P2O5, 0-3% Li2O and 2-16% Ln2O3 where Ln is selected from the group of rare earth elements and mixtures thereof. The invention is further directed to the glass composition incorporated in a thick film composition or a castable dielectric composition comprising a dispersion of finely divided solids comprising, based on solids: (a) 30-100 wt. % the glass composition; (b) 0-50 wt. % ceramic filler; both dispersed in a solution of (c) an organic polymeric binder; and (d) a volatile organic solvent. The invention is still further directed to the castable dielectric composition used in a method of forming a high K green tape by casting a thin layer of the castable dispersion onto a flexible sheet and heating the cast layer to remove the volatile organic solvent.
摘要翻译:本发明涉及一种玻璃组合物,其包含基于摩尔%的15-35%MO,其中M选自BaO,CaO,MgO,PbO,SrO及其混合物,30-60%TiO 2,10-30%B 2 O 3 ,1-7%P 2 O 5,0-3%Li 2 O和2-16%Ln 2 O 3,其中Ln选自稀土元素及其混合物。 本发明还涉及包含在厚膜组合物中的玻璃组合物或包含细分固体分散体的可浇铸电介质组合物,其包含基于固体:(a)30-100wt。 %的玻璃组成; (b)0-50wt。 %陶瓷填料; 均分散在(c)有机聚合物粘合剂的溶液中; 和(d)挥发性有机溶剂。 本发明还涉及用于通过将可浇铸分散体的薄层浇铸到柔性片材上并加热流延层以除去挥发性有机溶剂的方法中用于形成高K生胶带的方法中的可浇铸电介质组合物。
摘要:
The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium.The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.
摘要翻译:本发明涉及一种可丝网印刷的吸气剂组合物,其包括:(a)玻璃料; 分散在(b)有机介质中。 本发明还涉及一种可丝网印刷的厚膜吸气剂组合物,其包含:(a)玻璃料; 和(b)干燥剂材料; 分散在(c)有机介质中。 本发明还涉及一种使用低软化温度的玻璃的吸气剂组合物,该组合物的重量百分数为1-50%SiO 2,0-80%B 2 O 3,0-90%Bi 2 O 3,0-90%PbO,0-90% P 2 O 5,0-60%Li 2 O,0-30%Al 2 O 3,0-10%K 2 O,0-10%Na 2 O和0-30%MO,其中M选自Ba,Sr,Ca,Zn,Cu,Mg和混合物 其中。 本文所述的玻璃可以包含可以代替玻璃网络形成元件或改变玻璃结构的几种其它氧化物成分。
摘要:
The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.
摘要:
The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.
摘要:
A heated eyelash curler comprising a curling head having a heating element, a cover switch engaged with the heated eyelash curler, and a body enclosing operational components of the heated eyelash curler connected to the curling head. The cover switch turns the heating element “on” after exposing the curling head and turns the heating element “off” after covering the curling head instead of the current practice of manually turning the switch “on” and “off”. The engagement between the parts on the cover switch and the heated eyelash curler attaches the cover switch to the body of the heated eyelash curler. The heating element on the eyelash curler can be conventional or it can adopt wiring in a zigzag configuration housed within a conducting tube coated with a non-sticking material.
摘要:
A medical device and method for determining baroreflex sensitivity (BRS) based on one or more respiration cycles. The BRS determination may be performed continuously based on measurements of heart rate, blood pressure, and respiration cycles.
摘要:
A method of compensating a photo sensor (and a corresponding photo sensor with compensation) insures the accuracy of the photo sensor, e.g., over environmental variations or photo cell variations. The method comprises: providing a first signal indicative of a light level; providing a second signal indicative of an environmental parameter, e.g., temperature; and calculating, responsive to the first signal and the second signal, a compensated signal that is indicative of an absolute light level. The calculating can be performed by a processor and utilize calibration and compensation information or parameters, which can be obtained experimentally.
摘要:
Impedance, e.g. sub-threshold impedance, is measured across the heart at selected cardiac cycle times as a measure of chamber expansion or contraction. One embodiment measures impedance over a long AV interval to obtain the minimum impedance, indicative of maximum ventricular expansion, in order to set the AV interval. Another embodiment measures impedance change over a cycle and varies the AV pace interval in a binary search to converge on the AV interval causing maximum impedance change indicative of maximum ventricular output. Another method varies the right ventricle to left ventricle (VV) interval to converge on an impedance maximum indicative of minimum cardiac volume at end systole. Another embodiment varies the VV interval to maximize impedance change. Other methods vary the AA interval to maximize impedance change over the entire cardiac cycle or during the atrial cycle.
摘要:
A floating structure is floatable in a body of liquid and stabilized with respect to at least one of roll and pitch. Such a structure includes: a hull including compartments, each compartment being open at the bottom thereof relative to a horizontal plane, and being adapted to accommodate ingress by the body of liquid; a negative pressure source to negatively pressure a volume above a level of the liquid in at least one of the compartments; and one or more arrangements by which at least one or more other of the compartments can be made to exhibit a positive buoyancy.