Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JPS52155397 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial longitudinal sectional view of a conventional diagnostic sound collector, and FIGS. 2 to 6 are parts showing different embodiments of a diagnostic sound collector according to the present invention. FIG. DESCRIPTION OF SYMBOLS 1 ······································································································································································································· ·································· ··· Sound pickup sensing part, 5 ··· · · · · · · · · · · · · · · · · · · · elastic body, 9 · · · · · · · maternal abdominal wall. 7 靜 3 Ml Science 244 σ 53 [Detailed description of the invention] In the present invention, by directly contacting the maternal abdominal wall of pregnant woman, the heart sound of the fetus is collected, and the change of the fetal heart rate at the time of delivery is recorded to monitor the delivery progress etc. The present invention relates to a diagnostic sound collector used in a medical device. As shown in FIG. 1 as a diagnostic sound collector which picks up sound directly in contact with the surface of this kind of living body, it has the same structure as that of the dynamic microphone # 1 y, and the mu is the mother belly Sounds in direct contact with IIB. ・ 採 C, C is a damper, D is a coil, Fj, ffi. 1。 52−1バー? F] is a magnet, 1 is a case. However, in the case of the sound collecting for diagnosis of this structure, depending on the tightening condition of the attachment belt when the sound absorber is attached to the mother abdominal wall BK, or when stopping the tape, the stopping condition etc. Pressure that directly changes on the sound pickup / sensing unit is applied due to labor pain, the difference in the shape of the abdominal wall at the place to be attached, etc. As a result, the vibration of the sound-pickup sensing unit is suppressed and the damper C is deformed and deteriorated, so that the sensitivity is low, the stability is low, the reliability is low, and the durability is not high. In addition, there is a point that the external noise is directly transmitted from the case ν through the gou-nbar ay to the sound-pickup sensing unit, so that the signal-to-noise ratio C / N becomes worse. Try to eliminate such drawbacks. In addition, when collecting the womb and baby heart sounds directly from the maternal abdominal 04-05-2019 1 wall using a contact sound collection type microphone, a team. Pain, abdominal wall shape differences, microphone wearing. The sensitivity is always good without being changed to the wearing condition etc. While dancing in the stable sound collection in the state of, and durable. The purpose of the present invention is to provide a sound collection S for diagnosis. . 2 · · · · 2 Hai: ° The present invention will be described in detail by the illustrated embodiment: · In the figure, 1 is the case, 2 is the ° opening of the case 1, 3 is the opening of the case 1 2- It is an opening peripheral part. A microphone 4 is disposed in the case 1 so as to be movable toward the opening 2 side of the microphone aml 4 at-r-1. The sound type microphone 4 is a capacitor type even if it is of the dynamic type described above, as long as the sound type microphone 4 picks up sound by contacting the sound pickup sensing part 4a directly to a living body and converts it into an electric signal. It may be of another type. 5は。 The restricting plate 1 is fixed to the contact sound collecting type microphone 1, and the restricting plate 5 mainly contacts the opening skin green WL3 of the case 1, as shown in FIG. 2, FIG. 4 and FIG. Sound contact, by the elastic force described later. The mold microphone 4 is for restricting without coming out of the opening 2. It mentioned above. As in the case of the contact sound pickup type microphone 4, elastic force is applied toward the opening 2 of the case 1. An example of the tube is shown in FIG. 2 and an elastic body. Interposing between the back wall of the compression coil spring 6 at-case 1 as 3 · 6 ° and the regulating plate 5, #I! In FIG. 3, an elastic force is applied to the contact sound collection type microphone 4 by being interposed between the rear wall of the elastic body 6 bi case 1 such as maltobrene and the contact collection / pre-type microphone 4. In the specific example of FIG. 4, the air pressure 6 af is used, and the rear portion of the contact sound pickup type microphone 4 is airtightly fitted to the cylinder 7 protruding from the rear wall of the case 1 to form a piston 7 a The compressed air pressure in the cylinder 7 by the piston 7a applies an elastic force to the contact / touch sound-type microphone 4. のである。 Furthermore, in the example of FIG. , An elastic body between the restricting plate 5 and the opening peripheral portion 2, and a tension spring 6d gold, or a plate spring 6e in FIG. The contact sound collection type microphone 1. The elastic force in the direction of the 1 雫 opening 2 direction is given to 14. In the figure of the above embodiment, 8 is a contact sound pickup type. , For taking out the electric signal of the microphone 4. , And 9 indicate a mother belly W. There, the case 1 has an open shoulder edge 30 surface. 4 Shellfish-□ 1) j Attach to the mother abdominal wall 9 with double-sided adhesive tape or the like. At this time, although the contact sound collecting type microphone 4 in the case 1 is pressed by the sand rising of the matrix abdominal wall 9 which has entered the opening 2, the microphone 4 moves upward against the elasticity of the elastic body 6. By absorbing the above-mentioned pressing force, the sound pickup 11114a is mother body at an appropriate pressure! Contact 1119. In a state such as jin, the contact sound collecting type microphone 4 is transmitted to the maternal abdominal wall 9 by the sound collecting and sensing unit 4a! & Baby heart. After the sound is picked up, it is converted into an electrical signal and taken out from the lead wire 8. In this feast, when the nurse 1 is attached to 04-05-2019 2 the mother abdominal wall 1 and 9 as described above, this wearing state, the shape of the mother abdominal wall 9, the contact sound pickup type microphone 4 due to labor pain and the like. , Because the microphone 4 is absorbed by moving in an elastic force, 1. At this time, with the mother abdominal wall 9 and the sound pickup sensing part 4m. The tangential pressure is determined only by the elastic stress. Well, I affect the pressure on the mother belly I19 and case 1 etc. Because you are not, pick up your senses'; Is4ai; i, to any pressure. The mother's abdominal wall 9 contacts with "". Therefore, the sensitivity of the contact sound collection type microphone 4 is stable and good, and the reliability is high. The excessive sound pressure of the sound input detection portion 4aK is added to increase the durability. Further, since external noise coming directly from the case 1 and reaching from the surrounding air is transmitted to the sound-pickup sensing part 4a through the elastic body 6 and is attenuated, the percentage is improved. 04-05-2019 3
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