Stethoscope head structure with adjustable voice frequency

An adjustable, stethoscope technology, applied in the direction of stethoscopes, etc., can solve the problems of inconvenient assembly, inability to adjust the audio intensity, and the user's inability to repair the listening effect, etc., and achieve the effect of convenient assembly

Active Publication Date: 2011-10-19
WUXI KAISHUN MEDICAL DEVICE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When in use, to switch from low-frequency sound to high-frequency sound, you only need to press the diaphragm 12 so that the diaphragm 12 is in contact with the annular shoulder 145. At this time, the λ angle of the diaphragm changes, but due to the lower surface of the annular step 128 is fixed on the platform 149 of the listening head body by the fastener 12, making it difficult to change the λ angle, so the user needs to expend a lot of force to press the listening head body 14 to change the λ angle, resulting in being used Those who are unwell
[0005] Secondly, due to the differe

Method used

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  • Stethoscope head structure with adjustable voice frequency
  • Stethoscope head structure with adjustable voice frequency
  • Stethoscope head structure with adjustable voice frequency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Combining Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 10 It can be seen.

[0050] An audio adjustable stethoscope earpiece structure is composed of an earpiece body 14, a diaphragm 12 and a fastener 11 diaphragm.

[0051]The outer edge of the listening head body front 140 is provided with an annular step 142, and the step surface 146 of the annular step 142 is provided with a thread 143; an annular groove 144 is provided on the sound collecting surface 5 inside the annular step 142; The inner surface 148 of the groove 144 forms an obtuse angle γ with the bottom surface 147;

[0052] Fastener 11 is made up of circular ring A and circular ring B, and circular ring A upper surface 113 and circular ring B upper surface 114 are on the same horizontal plane; The inner diameters of the rings A are the same, and the inner wall 115 of the ring A is provided with a screw thread 111 that cooperates with the screw thread 143 on the stepped ...

Embodiment 2

[0055] Embodiment 2: as embodiment 1, in conjunction with Figure 4 , Figure 6 , Figure 7 , Figure 9 , Figure 10 An annular shoulder 145 is also provided on the sound collecting surface 5 inside the annular groove 144 .

[0056] Wherein, the inner surface 148 of the annular groove 144 forms an obtuse angle γ with the bottom surface 147 of the annular groove, wherein 100°≤γ<145°.

[0057] combine Figure 13 It can be seen that a washer 160 can also be provided on the annular shoulder 145 . Adding the gasket 160 can enhance the sealing performance of the sound collecting cavity, so that the listening effect can be improved.

[0058] combine Figure 6 , Figure 7 It can be seen that when listening to low-frequency audio, the diaphragm upper surface 125 of the diaphragm 12 can be contacted with the user; Figure 8 It can be seen that if you need to listen to high-frequency sounds, you only need to press the earpiece body 14 so that the diaphragm foot 122 slides downwa...

Embodiment 3

[0066] Embodiment 3: all the other are as embodiment 1, combine Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, a sealing ring 13 is also provided between the annular step 142 and the ring A. As shown in FIG. The sealing ring 13 can effectively prevent sound leakage between the bottom surface 116 of the ring A of the fastener 11 and the contact surface of the annular step 142 when listening to low-frequency sounds.

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Abstract

The invention relates to an accessory of a medical appliance, in particular to an accessory of a stethoscope, which comprises a stethoscope head body, a membrane and a fastener. The membrane is provided with an annular step and an anchor; the membrane is arranged on a sound collection surface of the front side of the stethoscope head body and is fixed on the stethoscope head body through the fastener; the annular step is arranged at the outer edge part of the front side of the stethoscope head body; a thread is arranged on the step surface of the annular step; an annular groove is arranged onthe sound collection surface at the inner side of the annular step; an obtuse angle gamma is formed by the inside surface of the annular groove and the bottom surface of the annular groove; the anchor of the membrane is arranged in the annular groove; the fastener consists of a circular ring A and a circular ring B, the upper surfaces of which are in the same plane; the circular ring B is arranged in the circular ring A and the outer diameter of the circular ring B is the same with the inner diameter of the circular ring A; and the inner wall of the circular ring A is provided with a thread matched with the thread on the step surface. The stethoscope head structure with adjustable voice frequency has the advantage of being convenient for assembly and capable of continuously adjusting the audition effect.

Description

technical field [0001] The invention relates to a medical device accessory, in particular to a stethoscope accessory. Background technique [0002] Such as figure 1 As shown, the stethoscope is composed of listening head 1, rubber tube 2, listening tube 3 and earplug 4. When listening to multi-band sounds, it is mostly realized by changing the volume of the listening head sound collecting cavity. That is, when you need to listen to high-frequency sounds or low-frequency sounds, you only need to switch between different volumes of the listening head sound collection cavity. [0003] Existing technologies such as figure 2 , image 3 As shown, the diaphragm 12 is placed on the earpiece body 14, and then fixed by a fastener 12, which is an annular rubber ring. The fastener 12 is wrapped on the ring-shaped step 121 of the diaphragm and the earpiece body 14 , so that the diaphragm 12 is fixed on the earpiece body 14 . [0004] When in use, to switch from low-frequency sound ...

Claims

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Application Information

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IPC IPC(8): A61B7/04
Inventor 单希杰
Owner WUXI KAISHUN MEDICAL DEVICE MFG CO LTD
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