| 摘要 |
<p>PURPOSE:To permit the simple handling and obtain the always correct blood pressure wave form by installing a hollow chamber and a resonance brake application element having a connecting means which selectively communicates the hollow chamber and a flow passage, allowing the hollow chamber and the flow passage to communicate when the characteristic is improved, while cutting off the communication when the noncharacteristic is improved. CONSTITUTION:A housing is constituted of an accommodation part 5 for a resonance brake application element consisting of a cock 2, capillary tube 3, and a sealing member 4, tubular member 7 which forms a flow passage 6, and an accommodation chamber 9 for a pressure conversion element 8, and the pressure conversion element 8 which is installed oppositely in the flow passage 6 and converts the fluid pressure to the electric signal and the resonance brake application element 2 which is equipped with a hollow chamber 30 and a connecting means 3 for allowing the hollow chamber 30 and the flow passage 6 to selectively communicate are provided. Accordingly, when the hollow chamber 30 and the fluid passage 6 communicate in the improvement of characteristic, i.e., underdamping wave form is generated, the resonance brake application element 2 is added into the system, and the correct blood pressure wave form is outputted, while when the noncharacteristic is improved, the communication between the hollow chamber and the flow passage is intercepted. Accordingly, when the system transmits the correct blood pressure wave form, the intrusion of the resonance brake application element 2 into the system is prevented. Accordingly, the always correct blood pressure wave form can be outputted.</p> |
