CN102217950A - Stethoscope head structure with adjustable voice frequency - Google Patents
Stethoscope head structure with adjustable voice frequency Download PDFInfo
- Publication number
- CN102217950A CN102217950A CN 201010153009 CN201010153009A CN102217950A CN 102217950 A CN102217950 A CN 102217950A CN 201010153009 CN201010153009 CN 201010153009 CN 201010153009 A CN201010153009 A CN 201010153009A CN 102217950 A CN102217950 A CN 102217950A
- Authority
- CN
- China
- Prior art keywords
- annulus
- diaphragm
- audio frequency
- annular recess
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Headphones And Earphones (AREA)
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 on the 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
The present invention relates to a kind of fitting of medical apparatus, especially refer to a kind of stethoscopic accessory.
Background technology
As shown in Figure 1, stethoscope is made up of can 1, sebific duct 2, listening tube 3 and earplug 4 four parts, when listening to multiband sound, is mostly adopt to change that the size of can collection sound cavity volume realizes.In the time of promptly need listening to high band sound or low-frequency range sound, as long as switch different can collection sound cavity volumes.
Prior art such as Fig. 2, shown in Figure 3, diaphragm 12 place on the can body 14, and fixing by securing member 12 again, securing member 12 is ring-like rubber ring.Securing member 12 is coated on diaphragm circular step 121 and the can body 14, makes diaphragm 12 on fixing can body 14.
During use, switch to high frequency audio from bass, only need to press pressuring film plate 12, diaphragm 12 is conflicted with ring-type convex shoulder 145 get final product, diaphragm-operated λ angle changes at this moment, but is fixed on the platform 149 of can body because of circular step lower surface 128 fasteners 12, make that the change at λ angle is very difficult, so user need spend bigger strength and press can body 14, just can make the change at λ angle, thereby cause by the user discomfort.
Secondly, because the people's audition difference of each has different hobbies and secular clinical auscultation custom prior art and then can not regulate the audio frequency intensity of listening to during use, can only use the different audio frequency that configure.
Moreover the stethoscope tin structure of existing two-band technology is very inconvenient when assembling, needs the professional person to assemble meticulously and could guarantee hearing effect;
Once more, if deviation takes place in the use, cause hearing effect to descend, user generally can't be repaired the effect of audition.
Summary of the invention
The objective of the invention is, overcome the shortcoming of prior art, a kind of easy to assembly and scalable hearing effect is provided, and listen to different audio frequency intensity and continuously adjustable stethoscope tin structure.
The present invention seeks to realize like this:
The adjustable stethoscope tin structure of a kind of audio frequency comprises can body, diaphragm and securing member; Described diaphragm is provided with circular step and footing; Described diaphragm places on the sound collecting surface in can body front and by securing member and is fixed on the described can body, and the outer edge in described can body front is provided with circular step, and the step surface of described circular step is provided with screw thread; On the inboard sound collecting surface of described circular step, be provided with annular recess; The medial surface of described annular recess becomes obtuse angle γ with the bottom surface of annular recess, 100 °≤γ＜145 °; Described diaphragm footing places in the described annular recess; The medial surface of described diaphragm-operated footing and described annular recess touches; Described securing member is made up of the annulus A and the annulus B of upper surface at same horizontal plane, described annulus B places annulus A external diameter interior and annulus B identical with the internal diameter of annulus A, the inwall of annulus A be provided with step surface on the screw thread of threaded engagement, and the pitch of two matching threads adopts fine pitch, and pitch is that 0.25-0.75MM helps improving the degree of accuracy when regulating audio frequency like this.
Because γ is the obtuse angle, after diaphragm is subjected to downward power, be decomposed into the power on horizontal direction and the vertical direction behind the medial surface of chance annular recess.So the counteracting force that makes progress that is subjected to of diaphragm is that the medial surface of annular recess is at the vertical direction active force; The counteracting force of the horizontal direction that diaphragm is subjected to is the medial surface active force in the horizontal direction of annular recess, and this active force changes the angle β of diaphragm base angle and diaphragm circular step.And the contact surface of diaphragm and can body annular recess is diaphragm baseplane and diaphragm base angle medial surface, the diameter of the cross section of annular recess increases from top to bottom gradually, after diaphragm is subjected to downward pressure, β increases, the diaphragm base angle moves down along the annular recess medial surface, thereby can effectively avoid between the contact surface of diaphragm and can body when switching audio frequency leakage sound phenomenon taking place.
As γ during more near the right angle, the counteracting force that makes progress that diaphragm is subjected to is more little, and it is big more to be subjected to the horizontal direction counteracting force, thereby β increases easily, makes diaphragm more laborsaving when pressing down.But when the γ increase, the counteracting force that makes progress that diaphragm is subjected to also increases thereupon, and the counteracting force of horizontal direction reduces thereupon, and β increases just difficult, makes diaphragm require great effort when pressing down.But γ is during more near the right angle, because it is less to be subjected to power upwards, so after switching audio frequency, diaphragm is back to also difficulty of original position.
Further; Be located on the sound collecting surface of annular recess inboard and also be provided with the ring-type convex shoulder; On described ring-type convex shoulder, also be provided with packing ring, or also can on described ring-type convex shoulder, also be provided with groove; Be provided with packing ring in also can be on described groove.Packing ring can strengthen the sealing in collection sound chamber, so that obtain better hearing effect.
Further; Between described circular step and described annulus A, also be provided with sealing ring.Sealing ring can effectively prevent the leakage sound phenomenon between the circular step contact surface on the baseplane of securing member when listening to low-frequency range sound and the can body.
Further; Be provided with scale at the described can body back side, and on the lateral surface of annulus A, be provided with arrow.Screw when non-initiative takes place securing member, when causing hearing effect to change, can securing member be returned to original position, remove to regulate hearing effect thereby need not to spend many energy by memory arrow scale pointed.
The present invention has the following advantages:
1. the prior art stethoscope generally can only provide the audio frequency of two fixed frequency ranges.And the present invention can provide two primary band audio frequency and a plurality of sub band audio frequency, and user can be regulated by him and listen to the crisp and gentle of audio frequency the clinical auscultation custom.
2. prior art is had relatively high expectations to the assembling and the replacing of product, need professional and technical personnel's assembling, careless slightlyly just may lose the effect of listening to two-band in when assembling, the present invention assembles very convenient, need not professional and technical personnel's help, simple assembling just can reach the effect of listening to a plurality of frequency band audios.
3. prior art need apply big pressure when obtaining the two-band audio frequency, and generally exerting pressure is 9.23-11.12 newton, and the present invention needs the 5.39-7.23 Newton force following of the prerequisite that obtains same audio frequency effect.
4. the prior art constructions diaphragm in use is easy to generate fatigue, and general access times are 25000-30000 time, and diaphragm of the present invention in use is difficult for producing tired, and can reach 50000-60000 time its service life.
5. prior art audio frequency generation in use deviation causes hearing effect to descend, and user generally can't be adjusted the effect of audition.The present invention causes hearing effect to descend in use as audio frequency generation deviation, and user can be repaired adjustment voluntarily.
Description of drawings
Fig. 1 has the stethoscope sketch map now
Fig. 2 is a prior art can sketch map
Fig. 3 is the decomposing schematic representation of Fig. 2
Fig. 4 is a decomposing schematic representation of the present invention
Fig. 5 is can body 14 local enlarged diagrams among Fig. 4
Fig. 6 is a sketch map of the present invention-1
Fig. 7 is the local enlarged diagram of Fig. 6
Fig. 8 is a sketch map of the present invention-2
Fig. 9 is a securing member sketch map of the present invention
Figure 10 is diaphragm 12 partial schematic diagrams among Fig. 4
Figure 11 is a can schematic rear view of the present invention
Figure 12 is provided with the partial schematic diagram of annular recess 1451 for ring-type convex shoulder 145 on the can body 14 of the present invention
Figure 13 is provided with the partial schematic diagram-1 of packing ring 160 for ring-type convex shoulder 145 on the can body 14 of the present invention
Figure 14 is provided with the partial schematic diagram-2 of packing ring 160 for ring-type convex shoulder 145 on the can body 14 of the present invention
Figure 15 is provided with the partial schematic diagram-3 of packing ring 160 for ring-type convex shoulder 145 on the can body 14 of the present invention
1 can, 2 sebific ducts, 3 listening tubes, 4 earplugs, 5 sound collecting surfaces
6 collection sound chamber 11 securing members, 111 screw threads, 112 arrows
113 annulus A upper surfaces, 114 annulus B upper surfaces, 115 annulus A inwalls
116 annulus A bottom surface annulus A annulus B
12 diaphragms, 121 diaphragm circular steps, 122 diaphragm footing, 123 diaphragm baseplanes
124 diaphragm footing medial surface, 125 diaphragm upper surfaces, 126 diaphragm lower surfaces
127 diaphragm footing medial surface base circular step lower surface 128 13 sealing rings
The positive 141 can body back sides of 14 can bodies, 140 can bodies
142 circular steps, 143 screw threads, 144 annular recess, 145 ring-type convex shoulders, 146 step surfaces
147 bottom surfaces, 148 medial surface, 149 platforms, 150 scales, 160 packing rings
1451 grooves
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Embodiment 1: in conjunction with Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 9, Figure 10 as can be known.
The adjustable stethoscope tin structure of a kind of audio frequency is made up of can body 14, diaphragm 12 and securing member 11 diaphragms.
The outer edge in can body front 140 is provided with circular step 142, and the step surface 146 of circular step 142 is provided with screw thread 143; On circular step 142 inboard sound collecting surfaces 5, be provided with annular recess 144; The 147 one-tenth obtuse angle γ in the medial surface 148 and the bottom surface of annular recess 144;
Securing member 11 is made up of annulus A and annulus B, and annulus A upper surface 113 and annulus B upper surface 114 are on same horizontal plane; Annulus B places annulus A external diameter interior and annulus B identical with the internal diameter of annulus A, and annulus A inwall 115 is provided with the screw thread 111 that cooperates with screw thread 143 on the step surface.
11 diaphragms are provided with circular step 121 and footing 122; Diaphragm 12 footing 122 place in the annular recess 144; Diaphragm footing medial surface base 127 touches with the medial surface 148 of annular recess 144; Diaphragm 12 is fixed on the can body 14 by securing member 11.
Wherein, 147 one-tenth obtuse angle γ of the medial surface 148 of annular recess 144 and the bottom surface of annular recess, wherein 100 °≤γ＜145 °.
Embodiment 2: as embodiment 1, be located in conjunction with Fig. 4, Fig. 6, Fig. 7, Fig. 9, Figure 10 on the sound collecting surface 5 of annular recess 144 inboards and also be provided with ring-type convex shoulder 145.
Wherein, 147 one-tenth obtuse angle γ of the medial surface 148 of annular recess 144 and the bottom surface of annular recess, wherein 100 °≤γ＜145 °.
In conjunction with Figure 13 as can be known, on ring-type convex shoulder 145, also can be provided with packing ring 160.Increase the sealing that packing ring 160 can strengthen collection sound chamber, make hearing effect get a promotion.
In conjunction with Fig. 6, Fig. 7 as can be known, when listening to bass, the diaphragm upper surface 125 contact user of diaphragm 12 are got final product; In conjunction with Fig. 8 as can be known, listen to high frequency audio as need, as long as push can body 14, make diaphragm footing 122 in annular recess 144 to lower slider, contact at ring-type convex shoulder 145 to diaphragm lower surface 126 and get final product.
| γ angular unit (degree) | Diaphragm |
Stethoscope attenuation unit (DB) when frequency 500HZ sound source is 114DB | Stethoscope attenuation unit (DB) when frequency 750HZ sound source is 114DB |
| 100 | 3.95 | 7.82 | 6.95 |
| 110 | 5.03 | 5.01 | 4.23 |
| 120 | 5.39 | 5.23 | 4.18 |
| 130 | 7.85 | 6.32 | 5.23 |
| 140 | 9.23 | 6.98 | 5.64 |
| 145 | 10.37 | 7.81 | 7.12 |
| 150 | 12.85 | 8.32 | 7.26 |
| 160 | 15.32 | 8.76 | 8.12 |
Above test data can draw:
One, can not produce the sense of discomfort that causes because of pressure from the good frequency conversion effect that obtains and auscultation position considers, the medial surface 148 of annular recess 144 is more little with the number of degrees of the bottom surface 147 obtuse angle γ of annular recess 144, diaphragm lower surface 126 coincide with ring-type convex shoulder 145, and it is more little promptly to obtain the required pressure of another audio frequency.But when actual auscultation such as pressure too small, when obtaining another audio frequency, can cause 125 diaphragm upper surfaces and auscultation position also fully contacting, influence normal auscultation.General suitable frequency conversion pressure be greater than 5 newton less than 10 newton, only in the scope of suitable pressure, good frequency conversion effect and the auscultation position that just can obtain can not produce the sense of discomfort that causes because of pressure.
Consider from the decay this respect of audio frequency that two, the medial surface 148 of annular recess 144 is just smaller with the decay of the number of degrees (145 ° of 100 °≤γ) its audio frequency in certain scope of the obtuse angle γ of the bottom surface 147 of annular recess.
The diaphragm footing thickness that is adopted is 0.6 millimeter, and the hardness of rubber is 60 degree,
Flexibility test method and parameter: the vertical deformation distance down of block rubber is 1.21 millimeters behind vertical stressed 19.6 newton in the last plane of one cubic centimetre of block rubber.
In conjunction with Figure 12 as can be known, also can be provided with cyclic groove 160 on the ring-type convex shoulder 145.Establish annular recess 160 on the ring-type convex shoulder 145, make the contact surface of conflicting increase to two anchor rings, the sealing effectiveness in collection sound chamber is strengthened, and obtain better hearing effect with diaphragm lower surface 126.In conjunction with Figure 14 as can be known, in the groove of annular recess 160, also be provided with packing ring 160.When pushing can body 14, make diaphragm footing 122 in annular recess 144 to lower slider, contact at the packing ring of establishing on the ring-type convex shoulder 145 160 to diaphragm lower surface 126, can strengthen the sealing in collection sound chamber 6, improve hearing effect.In conjunction with Figure 15 as can be known, also can establish two ring-type convex shoulders on the packing ring 160, when pushing can body 14, two ring-type convex shoulder conflict diaphragm lower surfaces 126 on the packing ring 160, form collection sound chamber 6, this moment has been because packing ring 160 has increased the contact surface with diaphragm lower surface 126, thereby also improved the sealing in collection sound chamber 6, improves hearing effect.The cross section of two ring-type convex shoulders on the packing ring 160 can be triangle, semicircle or the like.
Embodiment 3: all the other in conjunction with Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, also are provided with sealing ring 13 as embodiment 1 between circular step 142 and annulus A.Sealing ring 13 can effectively prevent the annulus A bottom surface 116 of securing member 11 when listening to low-frequency range sound and the leakage sound phenomenon between circular step 142 contact surfaces.
Embodiment 4, as embodiment 1 or embodiment 2 or embodiment 3, in conjunction with Figure 11 as can be known, be provided with scale 150 at the can body back side 141, and be provided with arrow 112 on the lateral surface of annulus A.
When non-initiative takes place securing member 11, when causing hearing effect to change, can securing member be returned to the original position of screwing by memory arrow scale pointed, remove to regulate hearing effect thereby need not to spend many energy.
To sum up, by initiatively screw securing member 11, to change the upper-lower position of diaphragm 12, change the size in collection sound chamber 6, reach the purpose of regulating the effect of listening to audio frequency.
Claims (7)
1. the adjustable stethoscope tin structure of audio frequency comprises can body, diaphragm and securing member; Described diaphragm is provided with circular step and footing; Described diaphragm places on the sound collecting surface in can body front and by securing member and is fixed on the described can body, and it is characterized in that: the outer edge in described can body front is provided with circular step, and the step surface of described circular step is provided with screw thread; On the inboard sound collecting surface of described circular step, be provided with annular recess; The medial surface of described annular recess becomes obtuse angle γ with the bottom surface of annular recess, wherein 100 °≤γ＜145 °; Described diaphragm footing places in the described annular recess; Described securing member is made up of the annulus A and the annulus B of upper surface at same horizontal plane, described annulus B place in the annulus A and the external diameter of annulus B identical with the internal diameter of annulus A, the inwall of annulus A be provided with step surface on the screw thread of threaded engagement.
2. the adjustable stethoscope tin structure of a kind of audio frequency according to claim 1 is characterized in that: be located on the sound collecting surface of annular recess inboard and also be provided with the ring-type convex shoulder.
3. the adjustable stethoscope tin structure of a kind of audio frequency according to claim 2 is characterized in that: also be provided with packing ring on described ring-type convex shoulder.
4. the adjustable stethoscope tin structure of a kind of audio frequency according to claim 2 is characterized in that: also be provided with groove on described ring-type convex shoulder.
5. the adjustable stethoscope tin structure of a kind of audio frequency according to claim 4 is characterized in that: be provided with packing ring on described groove.
6. according to the adjustable stethoscope tin structure of the described a kind of audio frequency of the arbitrary right of claim 1 to 5, it is characterized in that: between described circular step and described annulus A, also be provided with sealing ring.
7. the adjustable stethoscope tin structure of a kind of audio frequency according to claim 6 is characterized in that: be provided with scale at the described can body back side, and be provided with arrow on the lateral surface of annulus A.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153009 CN102217950B (en) | 2010-04-16 | 2010-04-16 | Stethoscope head structure with adjustable voice frequency |
| US13/640,039 US9801606B2 (en) | 2010-04-16 | 2010-09-06 | Stethoscope head with adjustable audio frequency |
| PCT/CN2010/001352 WO2011127633A1 (en) | 2010-04-16 | 2010-09-06 | Stethoscope head with adjustable audio frequency |
| PL10849643T PL2559383T3 (en) | 2010-04-16 | 2010-09-06 | Stethoscope head with adjustable audio frequency |
| EP10849643.1A EP2559383B1 (en) | 2010-04-16 | 2010-09-06 | Stethoscope head with adjustable audio frequency |
| US15/497,915 US20170224303A1 (en) | 2010-04-16 | 2017-04-26 | Stethoscope head with adjustable audio frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153009 CN102217950B (en) | 2010-04-16 | 2010-04-16 | Stethoscope head structure with adjustable voice frequency |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210533021.0A Division CN103006254B (en) | 2010-04-16 | 2010-04-16 | Audio-adjustable listening head structure for stethoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102217950A true CN102217950A (en) | 2011-10-19 |
| CN102217950B CN102217950B (en) | 2012-12-26 |
Family
ID=44774847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010153009 Active CN102217950B (en) | 2010-04-16 | 2010-04-16 | Stethoscope head structure with adjustable voice frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102217950B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315768A (en) * | 2012-03-19 | 2013-09-25 | 无锡市凯顺医疗器械制造有限公司 | Structural component for fixing auscultator head and fixing part |
| CN105708488A (en) * | 2014-12-02 | 2016-06-29 | 无锡市凯顺医疗器械制造有限公司 | Stethoscope heads of sound-enhancing and noise-proofing stethoscope |
| CN108024784A (en) * | 2015-07-20 | 2018-05-11 | Cvr 环球股份有限公司 | For detecting sensor, transducer gasket and the sensor array of infrasonic sound acoustic signal |
| CN108742699A (en) * | 2018-06-28 | 2018-11-06 | 常州市第二人民医院 | A kind of electronic auscultation device of dust control and noise absorption |
| CN111973215A (en) * | 2019-05-21 | 2020-11-24 | 无锡市凯顺医疗器械制造有限公司 | Multi-audio stethoscope listening head, matching structure and method for listening to multi-audio |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006254B (en) * | 2010-04-16 | 2014-09-10 | 无锡市凯顺医疗器械制造有限公司 | Audio-adjustable listening head structure for stethoscope |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244376B1 (en) * | 1997-05-13 | 2001-06-12 | Artemio Granzotto | Stethoscope head |
| US6499560B1 (en) * | 1999-06-11 | 2002-12-31 | Heinrich Lang | Disposable stethoscope diaphragm and dispenser |
| CN101091658A (en) * | 2007-07-17 | 2007-12-26 | 陈劲 | Detachable type stethoscopy head |
| CN101647712A (en) * | 2009-09-03 | 2010-02-17 | 单希杰 | Combined membrane, stethoscope head matched with same as well as matching component of both |
| CN201409934Y (en) * | 2009-04-27 | 2010-02-24 | 单希杰 | Matching structure of membrane and listening head body of two-band stethoscope |
| CN201642078U (en) * | 2010-04-16 | 2010-11-24 | 无锡市凯顺医疗器械制造有限公司 | Audio adjustable stethoscope head structure |
-
2010
- 2010-04-16 CN CN 201010153009 patent/CN102217950B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244376B1 (en) * | 1997-05-13 | 2001-06-12 | Artemio Granzotto | Stethoscope head |
| US6499560B1 (en) * | 1999-06-11 | 2002-12-31 | Heinrich Lang | Disposable stethoscope diaphragm and dispenser |
| CN101091658A (en) * | 2007-07-17 | 2007-12-26 | 陈劲 | Detachable type stethoscopy head |
| CN201409934Y (en) * | 2009-04-27 | 2010-02-24 | 单希杰 | Matching structure of membrane and listening head body of two-band stethoscope |
| CN101647712A (en) * | 2009-09-03 | 2010-02-17 | 单希杰 | Combined membrane, stethoscope head matched with same as well as matching component of both |
| CN201642078U (en) * | 2010-04-16 | 2010-11-24 | 无锡市凯顺医疗器械制造有限公司 | Audio adjustable stethoscope head structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315768A (en) * | 2012-03-19 | 2013-09-25 | 无锡市凯顺医疗器械制造有限公司 | Structural component for fixing auscultator head and fixing part |
| WO2013139243A1 (en) * | 2012-03-19 | 2013-09-26 | 无锡市凯顺医疗器械制造有限公司 | Matching structural assembly of stethoscope head body and fixed part |
| CN105708488A (en) * | 2014-12-02 | 2016-06-29 | 无锡市凯顺医疗器械制造有限公司 | Stethoscope heads of sound-enhancing and noise-proofing stethoscope |
| CN108024784A (en) * | 2015-07-20 | 2018-05-11 | Cvr 环球股份有限公司 | For detecting sensor, transducer gasket and the sensor array of infrasonic sound acoustic signal |
| CN108742699A (en) * | 2018-06-28 | 2018-11-06 | 常州市第二人民医院 | A kind of electronic auscultation device of dust control and noise absorption |
| CN108742699B (en) * | 2018-06-28 | 2021-04-23 | 常州市第二人民医院 | Dustproof electronic stethoscope that makes an uproar that falls |
| CN111973215A (en) * | 2019-05-21 | 2020-11-24 | 无锡市凯顺医疗器械制造有限公司 | Multi-audio stethoscope listening head, matching structure and method for listening to multi-audio |
| WO2020233527A1 (en) * | 2019-05-21 | 2020-11-26 | Shan Xijie | Multi-audio stethoscope head |
| US11642095B2 (en) | 2019-05-21 | 2023-05-09 | Wuxi Kaishun Medical Device Manufacturing Co., Ltd. | Multi-audio stethoscope head |
| CN111973215B (en) * | 2019-05-21 | 2023-08-22 | 无锡市凯顺医疗器械制造有限公司 | Multi-audio stethoscope head, matching structure and multi-audio listening method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102217950B (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102217950B (en) | Stethoscope head structure with adjustable voice frequency | |
| TWI661813B (en) | Diaphragm, methods for manufacturing same and stethoscopes provided with same | |
| Han et al. | Tone production of Mandarin Chinese speaking children with cochlear implants | |
| CN201642078U (en) | Audio adjustable stethoscope head structure | |
| CN103006254B (en) | Audio-adjustable listening head structure for stethoscope | |
| CN101647712B (en) | Combined membrane and its matching component with stethoscope head | |
| WO2011127633A1 (en) | Stethoscope head with adjustable audio frequency | |
| JP2015509014A (en) | Engineering surfaces that provide reduced friction and improved comfort for devices that contact the user's skin or external tissue | |
| US10213181B2 (en) | Stethoscope diaphragm | |
| US10667782B2 (en) | Stethoscope | |
| CN103315768B (en) | Structural component for fixing auscultator head and fixing part | |
| CN206490822U (en) | Integral type compound loudspeaker vibrating diaphragm | |
| CN211584162U (en) | Improved follow-up base for massage head | |
| WO2011119687A3 (en) | Vibro-acoustical body support | |
| US20200187894A1 (en) | Diaphragm, Methods for Manufacturing Same and Stethoscope Provided with Same | |
| CN202553975U (en) | Audio-adjustable stethoscope head structure assembly | |
| CN101695145A (en) | Cone of thin speaker | |
| CN211633336U (en) | Multi-audio stethoscope listening head | |
| CN208677427U (en) | Gurgling sound acquisition device | |
| CN202489971U (en) | Combination structural component of stethoscope body and fixed part | |
| Swendeman et al. | Correction: Gender disparities in depression severity and coping among people living with HIV/AIDS in Kolkata, India | |
| CN206499481U (en) | A kind of water sac device of high intensity focused ultrasound system | |
| CN2847288Y (en) | Ultrasonic probe capable of regulating coupling layer distance | |
| CN203072144U (en) | Novel titanium sound diaphragm | |
| CN204395230U (en) | Ankle ring set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |