CN103006254A - Audio-adjustable listening head structure for stethoscope - Google Patents
Audio-adjustable listening head structure for stethoscope Download PDFInfo
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- CN103006254A CN103006254A CN2012105330210A CN201210533021A CN103006254A CN 103006254 A CN103006254 A CN 103006254A CN 2012105330210 A CN2012105330210 A CN 2012105330210A CN 201210533021 A CN201210533021 A CN 201210533021A CN 103006254 A CN103006254 A CN 103006254A
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Abstract
The invention provides an audio-adjustable listening head structure for a stethoscope, relates to fittings for medical apparatus and instruments, and particularly relates to a fitting for the stethoscope. The audio-adjustable listening head structure comprises a listening head body, a diaphragm and a fastening piece; the diaphragm is provided with an annular step and a bottom foot; the diaphragm is arranged on a sound collecting face of the front face of the listening head body and is fixedly arranged on the listening head body through the fastening piece, an annular step is arranged at the outer edge part of the front face of the listening head body, and a step face of the annular step is provided with threads; an annular concave groove is formed in an inner-side sound collecting face of the annular step; an obtuse angle gamma is formed between the inner side face of the annular concave groove and the bottom face of the annular concave groove; the bottom foot of the diaphragm is arranged in the annular concave groove; and the fastening piece consists of a circular ring A and a circular ring B, of which the upper surfaces are located in the same horizontal plane, the circular ring B is arranged in the circular ring A, the external diameter of the circular ring B is the same as the internal diameter of the circular ring A, and the internal wall of the circular ring A is provided with threads matched with the threads on the step face. The audio-adjustable listening head structure for the stethoscope has the advantages of convenience in assembly and adjustment continuity in sound listening effect.
Description
The present invention is dividing an application of Chinese invention patent application CN201010153009.8.
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 comprised 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 namely 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 listening head 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 listening head body 14, makes diaphragm 12 on fixing listening head 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, the λ angle of diaphragm changes at this moment, but is fixed on the platform 149 of listening head body because of circular step lower surface 128 fasteners 12, so that the change at λ angle is very difficult, so user need to spend larger strength and press listening head body 14, just can make the change at λ angle, thereby cause by user uncomfortable.
Secondly, because the people's audition of each is different, have different hobbies during use, and long-term clinical auscultation custom prior art then can not regulate the audio frequency intensity of listening to, can only use the different audio frequency that set.
Moreover the stethoscope head structure of existing two-band technology is very inconvenient when assembling, needs the professional person meticulously to assemble the guarantee hearing effect;
Again, if deviation occurs in the use procedure, 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 head structure.
The present invention seeks to realize like this:
A kind of stethoscope head structure with adjustable voice frequency comprises listening head body, diaphragm and securing member; Described diaphragm is provided with circular step and footing; Described diaphragm places on the sound collecting surface in listening head body front and by securing member and is fixed on the described listening head body, and the outer edge in described listening head body front is provided with circular step, and the step surface of described circular step is provided with screw thread; Be provided with annular recess at the inboard sound collecting surface of described circular step; 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 footing of described diaphragm and the medial surface of described annular recess touch; Described securing member is comprised of annulus A and the annulus B of upper surface at the same level face, 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 is conducive to improve 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 diaphragm is subject to is the medial surface active force in the vertical direction of annular recess; The counteracting force of the horizontal direction that diaphragm is subject 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 listening head 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 listening head body when switching audio frequency leakage sound phenomenon occuring.
As γ during more near the right angle, the counteracting force that makes progress that diaphragm is subject to is less, and it is larger to be subject to the horizontal direction counteracting force, thereby β increases easily, so that diaphragm is more laborsaving when pressing down.But when γ increases, the counteracting force that makes progress that diaphragm is subject to also increases thereupon, and the counteracting force of horizontal direction reduces thereupon, and β increases just difficult, so that diaphragm is required great effort when pressing down.But γ is during more near the right angle, because it is less to be subject to power upwards, so after switching audio frequency, it is also difficult that diaphragm is back to 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, in order to 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 listening head body.
Further; Be provided with scale at the described listening head body back side, and be provided with arrow at the lateral surface of annulus A.Screw when non-active property occurs securing member, when causing hearing effect to change, can securing member be returned to original position by memory arrow scale pointed, remove to regulate hearing effect thereby need not to spend many energy.
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 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 larger pressure when obtaining the two-band audio frequency, generally exerts pressure to be 9.23-11.12 newton, and the present invention needs the 5.39-7.23 Newton force lower of the prerequisite that obtains same audio frequency effect.
4. the structural diaphragm of prior art in use produces fatigue easily, and the normal operation number of times is 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. in use audio frequency generation of prior art 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 such 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 prior art can sketch map
Fig. 3 is the decomposing schematic representation of Fig. 2
Fig. 4 is decomposing schematic representation of the present invention
Fig. 5 is listening head body 14 local enlarged diagrams among Fig. 4
Fig. 6 is sketch map of the present invention-1
Fig. 7 is the local enlarged diagram of Fig. 6
Fig. 8 is sketch map of the present invention-2
Fig. 9 is securing member sketch map of the present invention
Figure 10 is diaphragm 12 partial schematic diagrams among Fig. 4
Figure 11 is can schematic rear view of the present invention
Figure 12 is the partial schematic diagram that ring-type convex shoulder 145 is provided with annular recess 1451 on the listening head body 14 of the present invention
Figure 13 is the partial schematic diagram-1 that ring-type convex shoulder 145 is provided with packing ring 160 on the listening head body 14 of the present invention
Figure 14 is the partial schematic diagram-2 that ring-type convex shoulder 145 is provided with packing ring 160 on the listening head body 14 of the present invention
Figure 15 is the partial schematic diagram-3 that ring-type convex shoulder 145 is provided with packing ring 160 on the listening head 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 listening head body back sides of 14 listening head bodies, 140 listening head 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.
A kind of stethoscope head structure with adjustable voice frequency is comprised of listening head body 14, diaphragm 12 and securing member 11 diaphragms.
The outer edge in listening head body front 140 is provided with circular step 142, and the step surface 146 of circular step 142 is provided with screw thread 143; Be provided with annular recess 144 at circular step 142 inboard sound collecting surfaces 5; The 147 one-tenth obtuse angle γ in medial surface 148 and the bottom surface of annular recess 144;
Securing member 11 is comprised of annulus A and annulus B, and annulus A upper surface 113 and annulus B upper surface 114 are on the same level face; 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 listening head 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: such 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, so that hearing effect gets 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 such as need, as long as press listening head body 14, make diaphragm footing 122 at annular recess 144 interior down slidings, contact at ring-type convex shoulder 145 to diaphragm lower surface 126 and get final product.
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 less 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 less namely 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, affect 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 adopts 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 upper plane of one cubic centimetre of block rubber.
In conjunction with Figure 12 as can be known, also can be provided with the groove 160 of ring-type on the ring-type convex shoulder 145.Establish annular recess 160 on the ring-type convex shoulder 145, make the contact surface of conflicting with diaphragm lower surface 126 increase to two anchor rings, the sealing effectiveness in collection sound chamber is strengthened, and obtain better hearing effect.In conjunction with Figure 14 as can be known, in the groove of annular recess 160, also be provided with packing ring 160.When pressing listening head body 14, make diaphragm footing 122 at annular recess 144 interior down slidings, contact at the packing ring 160 of establishing on the ring-type convex shoulder 145 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 pressing listening head 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 etc.
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 such 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, such as embodiment 1 or embodiment 2 or embodiment 3, in conjunction with Figure 11 as can be known, are provided with scale 150 at the listening head body back side 141, and are provided with arrow 112 at the lateral surface of annulus A.
When non-active property occurs 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 (20)
1. a stethoscope head structure with adjustable voice frequency assembly comprises listening head body, diaphragm and securing member;
Described diaphragm is provided with circular step and footing;
Described diaphragm places on the sound collecting surface in listening head body front, and is fixed on the described listening head body by securing member;
It is characterized in that:
The outer edge in described listening head body front is provided with circular step, and the step surface of described circular step is provided with screw thread;
Described securing member is comprised of annulus A and the annulus B of upper surface at the same level face, and described annulus B places annulus A external diameter interior and annulus B identical with the internal diameter of annulus A, and the inwall of annulus A is provided with the screw thread that matches with screw thread on the step surface.
2. according to the described can construction package of claim l, it is characterized in that: also be provided with sealing ring between the described annulus A in described circular step and securing member.
3. according to the described can construction package of claim l, it is characterized in that: the back side at described listening head body is provided with scale, and is provided with arrow at the lateral surface of annulus A.
4. according to the described can construction package of claim l, it is characterized in that: the sound collecting surface in described circular step inboard is provided with annular recess, and the footing of described diaphragm places in the described annular recess.
5. can construction package according to claim 4, it is characterized in that: the medial surface of described annular recess becomes obtuse angle γ with the bottom surface of annular recess.
6. can construction package according to claim 5, it is characterized in that: wherein the span of obtuse angle γ is 100 ゜≤γ＜145 ゜.
7. a stethoscope head structure with adjustable voice frequency assembly comprises listening head body, diaphragm and securing member;
Described diaphragm is provided with circular step and footing;
Described diaphragm places on the sound collecting surface in listening head body front and by securing member and is fixed on the described listening head body,
It is characterized in that, be provided with the ring-type convex shoulder at sound collecting surface.
8. can construction package according to claim 7 is characterized in that: also be provided with packing ring on described ring-type convex shoulder.
9. can construction package according to claim 7 is characterized in that: also be provided with groove on described ring-type convex shoulder.
10. can construction package according to claim 7, it is characterized in that: described ring-type convex shoulder is two.
11. can construction package according to claim 10 is characterized in that: the cross section of described two ring-type convex shoulders is triangle or semicircle.
12. can construction package according to claim 9 is characterized in that: be provided with annular recess at sound collecting surface, the footing of described diaphragm places in the described annular recess.
13. can construction package according to claim 12 is characterized in that: described annular recess is arranged on the outside of described ring-type convex shoulder.
14. a method of regulating audio frequency that stethoscope is listened to is characterized in that,
A kind of stethoscope is provided, and this stethoscopic can comprises listening head body, diaphragm and securing member; Described diaphragm is provided with circular step and footing; Described diaphragm places on the sound collecting surface in listening head body front, and is fixed on the described listening head body by securing member; The outer edge in described listening head body front is provided with circular step, and the step surface of described circular step is provided with screw thread; Described securing member is comprised of annulus A and the annulus B of upper surface at the same level face, 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;
Screw the securing member in the above-mentioned stethoscope tin, with the upper-lower position of change diaphragm, thereby regulate the audio frequency of listening to.
15. method according to claim 14 is characterized in that:
At the described listening head body back side scale is set, and at the lateral surface of annulus A arrow is set;
Screw when non-active property occurs securing member, when causing hearing effect to change, by memory arrow scale pointed securing member is returned to original position and remove to regulate hearing effect.
16. method according to claim 14 is characterized in that:
Between the described annulus A in described circular step and securing member sealing ring is set, in case the leak-stopping sound.
17. regulate stethoscope to obtain the method for two-frequency signal for one kind, it is characterized in that,
A kind of stethoscope is provided, and this stethoscopic can comprises listening head body, diaphragm and securing member; Described diaphragm is provided with circular step and footing; Described diaphragm places on the sound collecting surface in listening head body front, and is fixed on the described listening head body by securing member; Be provided with the ring-type convex shoulder at sound collecting surface;
With the diaphragm upper surface contact user of diaphragm, to listen to bass;
Press listening head body, make the distortion downwards of diaphragm footing and periphery thereof, contact at the ring-type convex shoulder to the diaphragm lower surface, to listen to high frequency audio.
18. method according to claim 17 is characterized in that: be provided with annular recess at the inboard sound collecting surface of described circular step, the footing of described diaphragm places in the described annular recess; Diaphragm footing down sliding in annular recess when pressing.
19. method according to claim 17 is characterized in that: the medial surface of described annular recess becomes obtuse angle γ with the bottom surface of annular recess.
20. method according to claim 19 is characterized in that: wherein the span of obtuse angle γ is 100 ゜≤γ＜145 ゜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533021.0A CN103006254B (en) | 2010-04-16 | 2010-04-16 | Audio-adjustable listening head structure for stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533021.0A CN103006254B (en) | 2010-04-16 | 2010-04-16 | Audio-adjustable listening head structure for stethoscope |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010153009 Division CN102217950B (en) | 2010-04-16 | 2010-04-16 | Stethoscope head structure with adjustable voice frequency |
Publications (2)
| Publication Number | Publication Date |
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| CN103006254A true CN103006254A (en) | 2013-04-03 |
| CN103006254B CN103006254B (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210533021.0A Active CN103006254B (en) | 2010-04-16 | 2010-04-16 | Audio-adjustable listening head structure for stethoscope |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586424A (en) * | 2015-01-27 | 2015-05-06 | 江苏远燕医疗设备有限公司 | Stethoscope listening head |
| 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 |
| TWI728332B (en) * | 2017-09-06 | 2021-05-21 | 美商維托臣股份有限公司 | Diaphragm and stethoscope head assembly thereof |
Citations (8)
| 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 |
| CN2862968Y (en) * | 2005-09-30 | 2007-01-31 | 单希杰 | Stethoscope head |
| 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 |
| CN201409933Y (en) * | 2009-04-27 | 2010-02-24 | 单希杰 | Matching structure of membrane and listening head body of two-band stethoscope |
| CN201409934Y (en) * | 2009-04-27 | 2010-02-24 | 单希杰 | Matching structure of membrane and listening head body of two-band stethoscope |
| CN102217950B (en) * | 2010-04-16 | 2012-12-26 | 无锡市凯顺医疗器械制造有限公司 | Stethoscope head structure with adjustable voice frequency |
-
2010
- 2010-04-16 CN CN201210533021.0A patent/CN103006254B/en active Active
Patent Citations (8)
| 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 |
| CN2862968Y (en) * | 2005-09-30 | 2007-01-31 | 单希杰 | Stethoscope head |
| CN101091658A (en) * | 2007-07-17 | 2007-12-26 | 陈劲 | Detachable type stethoscopy head |
| CN201409933Y (en) * | 2009-04-27 | 2010-02-24 | 单希杰 | Matching structure of membrane and listening head body of two-band stethoscope |
| 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 |
| CN102217950B (en) * | 2010-04-16 | 2012-12-26 | 无锡市凯顺医疗器械制造有限公司 | Stethoscope head structure with adjustable voice frequency |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104586424A (en) * | 2015-01-27 | 2015-05-06 | 江苏远燕医疗设备有限公司 | Stethoscope listening head |
| CN104586424B (en) * | 2015-01-27 | 2017-03-01 | 江苏远燕医疗设备有限公司 | A kind of stethoscope tin |
| TWI728332B (en) * | 2017-09-06 | 2021-05-21 | 美商維托臣股份有限公司 | Diaphragm and stethoscope head assembly thereof |
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|---|---|
| CN103006254B (en) | 2014-09-10 |
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