摘要:
The invention concerns a port system (1) for fastening a container (3) comprising a vessel (2) and an outlet (6) to a connection system (14) presenting an inlet, said port system comprising: —a main skirt (4) connectable to the outlet (6) of the container presenting a connecting end and a discharge end (7), —a hopper (8) attached to the internal wall of the skirt and tapering to a discharge outlet (9) in direction of the main skirt discharge end (7), —a tearable membrane (10) closing the skirt discharge end and the hopper.
摘要:
The invention concerns a port system (1) for fastening a container (3) comprising a vessel (2) and an outlet (6) to a connection system (14) presenting an inlet, said port system comprising: —a main skirt (4) connectable to the outlet (6) of the container presenting a connecting end and a discharge end (7), —a hopper (8) attached to the internal wall of the skirt and tapering to a discharge outlet (9) in direction of the main skirt discharge end (7), —a tearable membrane (10) closing the skirt discharge end and the hopper.
摘要:
The present invention relates to container (1) for storing and unloading bulk material comprising: —a vessel (2) presenting a closed end (3) and an opened end (4), —a hopper (5) placed inside the vessel (2) and tapering to a discharge outlet in direction of the vessel opened end (4), —a tearable membrane (7) closing the hopper (5) and the vessel (2). The invention relates also to a tank to be refilled by said container and a method for refilling the tank with the container.
摘要:
The present invention relates to container (1) for storing and unloading bulk material comprising:—a vessel (2) presenting a closed end (3) and an opened end (4),—a hopper (5) placed inside the vessel (2) and tapering to a discharge outlet in direction of the vessel opened end (4),—a tearable membrane (7) closing the hopper (5) and the vessel (2). The invention relates also to a tank to be refilled by said container and a method for refilling the tank with the container.
摘要:
An acoustic therapy device is provided including a housing, an electro-acoustic transducer, a coupling element and coupling cushions. The electro-acoustic transducer is arranged in the housing which includes a shell. The coupling element has a coupling surface flush with edges of the shell. Another coupling surface of the coupling element is on the sound irradiation surface of the transducer and sound waves from the sound irradiation surface are directly coupled into the coupling element. An elastic coupling cushion is connected to a surface of the coupling element. One coupling surface of the coupling element and an exterior coupling surface of the coupling cushion define a sound advance path the length of which may, along with a penetration depth of the sound waves, be varied.
摘要:
A video endoscope has a strobe lamp operable in a mode wherein the strobing is synchronized to a selected tone or a periodic vibration in a patient, such as from the vocal cords, and is alternatively operable in a mode wherein the strobing is so rapid so as to appear as a substantially continuous light source. In the second mode, wherein the resulting image is to be displayed by a video system, the trigger circuit for operating the lamp is supplied with the video signal so that the lamp is triggered during either the horizontal or vertical blanking interval so that triggering of the strobe lamp does not cause interference in the video picture.
摘要:
A device, which is especially made for the generation of shockwaves to detect inner-body objects, is equipped with piezo-ceramic transducer elements which act as an electro-acoustical transducer which can be driven by a high-voltage source with high-voltage impulses to generate shock waves or sound impulses through directed deformations and length changes of the transducer elements is dependent on the given polarization of the transducer elements and the polarity of the high-voltage impulses. The sound energy emitted by the device may then be especially high if the transducer elements are excited and biased with a bias potential before the appearance of a high-voltage impulse and the polarity of the bias potential is opposite to that of the high-voltage impulse.
摘要:
There is disclosed, a piezoelectric transducer for generating focussed ultrasonic shock waves for use in lithotripsy. The ultrasonic shock waves are emitted in pulsed form and can be transmitted by way of a coupling medium to the body of a patient to be treated. The transducer comprises a substantial member of individual piezoelectric transducer elements of ceramic or like material which are connected to the poles of a pulse generator and are fixed to a support in mosaic form and with their sides electrically insulated from one another. The acoustic termination of the transducer elements is essentially free from reflection. An intermediate medium of at least one layer, the acoustic impedance of which lies between that of the ceramic of the transducer element and that of the coupling medium, is provided between the transducer elements and the coupling medium. The thickness d of the layer is chosen in accordance with the relationship d>.tau..sub.k .multidot.c.sub.LA, where .tau..sub.k is the propagation time of sound in the piezoceramic of the transducer elements and c.sub.LA is the sound velocity in the intermediate medium.
摘要翻译:公开了用于产生用于碎石术的聚焦超声冲击波的压电换能器。 超声冲击波以脉冲形式发射,并且可以通过耦合介质传播到待治疗患者的身体。 换能器包括连接到脉冲发生器的极的陶瓷或类似材料的各个压电换能器元件的实质部件,并且固定到马赛克形式的支撑件并且彼此的侧面彼此电绝缘。 换能器元件的声学终端基本上没有反射。 在换能器元件和耦合介质之间提供了至少一层的中间介质,其声学阻抗位于换能器元件的陶瓷和耦合介质的陶瓷之间。 根据关系d> tau kxcLA选择层的厚度d,其中τk是传感器元件的压电陶瓷中声音的传播时间,cLA是中间介质中的声速。
摘要:
A circuit for a flash stroboscope for examining vocal chord functions has a number of band-pass filters connected in parallel which have different cut-off frequencies. The acoustic signal generated by the vocal chords is fed to the inputs of these filters as an electrical signal after conversion in an electro-acoustic transducer. The output signal or fundamental wave signal allowed to pass by filter with a fundamental frequency of interest for the examination is supplied to a lamp circuit, which activates a flash lamp by trigger pulses generated from the fundamental wave. The band-pass filters are scanned automatically and successively to determine the presence of an output signal having the fundamental frequency of interest. The scanning operation is stopped upon detection of an output signal of this frequency at one of the filter outputs, so that the output of this filter can be connectd to the lamp circuit. The scanning operation is repeated cyclically so that the circuit can always be updated to the existing condition in the event of possible changes of the fundamental wave frequency.
摘要:
The invention relates to the use of a gel mass based on reaction products of polyols and polyisocyanates, wherein the polyol component consists of one or more polyols with hydroxyl numbers below 112 and where appropriate other polyols and additives known from polyol chemistry, the isocyanate number of the reaction mixture lies in the range of 15 to 59.81 and the product of the isocyanate functionality and the functionality of the polyol components is at least 6.15, as a coupling medium for transmitting acoustic waves from a sound source onto the body of the patient.