CN104739437A - Interferometric stethoscope - Google Patents
Interferometric stethoscope Download PDFInfo
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- CN104739437A CN104739437A CN201510129640.7A CN201510129640A CN104739437A CN 104739437 A CN104739437 A CN 104739437A CN 201510129640 A CN201510129640 A CN 201510129640A CN 104739437 A CN104739437 A CN 104739437A
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- channel
- stethoscope
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- pipe
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Abstract
The invention provides an interferometric stethoscope. The interferometric stethoscope comprises a sound pick-up, wherein the sound pick-up is communicated with a sound transmission base pipe; one end of the sound transmission base pipe is divided into a first channel and a second channel; the first channel is composed of a fixed-length rubber pipe; the second channel is composed of a rubber pipe and a hard telescopic pipe connected in the rubber pipe in series; the ends of the first channel and the second channel are converged to one sound transmission header pipe; the sound transmission header pipe is connected to an earphone. The interferometric stethoscope can effectively improve the discriminating capacity of pathological features and is easy to use by green hands.
Description
Technical field
The present invention relates to medical instruments field, especially, relate to a kind of stethoscope.
Background technology
In medical diagnosis process, stethoscope is a kind of conventional armarium, is mainly used in the inherent aura of auscultation health, as heart and lung diseases problem.Because human body is a complication system, when monitoring inside of human body sound, except the characteristic frequency sound produced by pathological characters, also along with a large amount of common noises, therefore, if experience is abundant not, then characteristic frequency is mixed in noise, is sent into together in ear by receiver, and people will be made to be difficult to differentiate, therefore, the pathology resolving ability of current common stethoscope is limited.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of interfere type stethoscope, this interfere type stethoscope effectively can improve the resolving ability of pathological characters, is easy to new hand and uses.
The technical solution adopted for the present invention to solve the technical problems is: this interfere type stethoscope comprises pick up, described pick up is communicated with an acoustic base tube, the end portion of described acoustic base tube flows out first passage and second channel, the rubber tube that described first passage is fixed by length is formed, and described second channel is made up of rubber tube and the hard telescoping tube be serially connected in rubber tube; Described first passage, second channel conflux to an acoustic house steward in end, described acoustic house steward is connected to receiver.
As preferably, described telescoping tube comprises the metal tubes of two sections of sockets mutually, wherein one section of metal tube is shaped with scale.
Beneficial effect of the present invention is: this interfere type stethoscope in use, by the sound of microphone pickup through described acoustic base tube symmetrical flow division to described first passage, second channel, regulate the length of described telescoping tube gradually, make described first passage, the length difference consecutive variations of second channel, when described length difference equals the sound half-wavelength of a certain frequency just, then flow through first passage, the sound of this frequency of second channel will be interfered and disappeared mutually, thus the sound that in receiver, this frequency is corresponding is suddenly disappeared, thus make auscultator hear paraphonia, in the mixing sound making auscultator judge to hear, comprise the characteristic frequency corresponding to certain aura, thus judgement aura.
Accompanying drawing explanation
Fig. 1 is the stethoscopic structural representation of this interfere type.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
In the embodiment shown in fig. 1, this interfere type stethoscope comprises pick up 1, described pick up 1 is communicated with an acoustic base tube 2, the end of described acoustic base tube 2 distributes first passage 21 and second channel 22 by three-port structure, the rubber tube that described first passage 21 is fixed by length is formed, and described second channel 22 is made up of rubber tube 221 and the hard telescoping tube 222 be serially connected in rubber tube 221; Described first passage 21, second channel 21 conflux to an acoustic house steward 3 by three-port structure in end again, and described acoustic house steward 3 is connected to receiver 4.
Above-mentioned stethoscope, described telescoping tube 222 comprises two sections of metal tubes be mutually socketed, and wherein one section of metal tube is shaped with scale.
Above-mentioned interference type stethoscope in use, the sound picked up by pick up 1 is through described acoustic base tube 2 symmetrical flow division extremely described first passage 21, second channel 22, regulate the length of described telescoping tube 222 gradually, make described first passage 21, the length difference consecutive variations of second channel 22, when described length difference equals the sound half-wavelength of a certain frequency just, then flow through first passage 21, the sound of this frequency of second channel 22 will be interfered and disappeared mutually, thus sound corresponding to receiver 4 li of these frequencies is suddenly disappeared, thus make auscultator hear paraphonia, in the mixing sound making auscultator judge to hear, comprise the characteristic frequency corresponding to certain aura, thus judgement aura, as for the length difference of first passage 21, second channel 22, then can be read by the scale on telescoping tube 222.
It is worthy of note, because the wavelength of bass is larger, and be limited to capacity issue, this stethoscopic telescoping tube 222 is unsuitable long, therefore the length difference of first passage 21, second channel 22 is comparatively limited, so this stethoscope is easy to auscultation go out the higher aura of characteristic sounds frequency, and for the lower aura of characteristic sounds frequency, the function suitable with common stethoscope can only be played.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. an interfere type stethoscope, comprise pick up (1), described pick up (1) is communicated with an acoustic base tube (2), the end portion of described acoustic base tube (2) flows out first passage (21) and second channel (22), the rubber tube that described first passage (21) is fixed by length is formed, and described second channel (22) is made up of rubber tube (221) and the hard telescoping tube (222) be serially connected in rubber tube (221); Described first passage (21), second channel (21) conflux to an acoustic house steward (3) in end, described acoustic house steward (3) is connected to receiver (4).
2. interfere type stethoscope according to claim 1, is characterized in that: described telescoping tube (222) comprises two sections of metal tubes be mutually socketed, and wherein one section of metal tube is shaped with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129640.7A CN104739437A (en) | 2015-03-24 | 2015-03-24 | Interferometric stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129640.7A CN104739437A (en) | 2015-03-24 | 2015-03-24 | Interferometric stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104739437A true CN104739437A (en) | 2015-07-01 |
Family
ID=53580098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129640.7A Pending CN104739437A (en) | 2015-03-24 | 2015-03-24 | Interferometric stethoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104739437A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134016Y (en) * | 1992-08-31 | 1993-05-19 | 陈光友 | Loadspeaker |
| US5959261A (en) * | 1996-02-13 | 1999-09-28 | Abelson; Denis M. | Stereophonic stethoscope |
| CN2598292Y (en) * | 2003-01-14 | 2004-01-07 | 冯文哲 | Delay reverberation depth and breadth sense stereophonic loadspeaker box |
-
2015
- 2015-03-24 CN CN201510129640.7A patent/CN104739437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134016Y (en) * | 1992-08-31 | 1993-05-19 | 陈光友 | Loadspeaker |
| US5959261A (en) * | 1996-02-13 | 1999-09-28 | Abelson; Denis M. | Stereophonic stethoscope |
| CN2598292Y (en) * | 2003-01-14 | 2004-01-07 | 冯文哲 | Delay reverberation depth and breadth sense stereophonic loadspeaker box |
Non-Patent Citations (2)
| Title |
|---|
| 金生华等: "自制教具在中学物理实验教学中的优势", 《中国教育技术装备》 * |
| 马中江: "声波干涉实验的改进", 《物理教学》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150701 |